diff --git a/components/ILIAS/Test/classes/class.ilObjTestGUI.php b/components/ILIAS/Test/classes/class.ilObjTestGUI.php
index 1f6f63afe452..e07d0b886110 100755
--- a/components/ILIAS/Test/classes/class.ilObjTestGUI.php
+++ b/components/ILIAS/Test/classes/class.ilObjTestGUI.php
@@ -446,7 +446,8 @@ public function executeCommand(): void
                     $this->http,
                     $this->data_factory,
                     $this->test_session_factory->getSession(),
-                    $this->getObjectiveOrientedContainer()
+                    $this->getObjectiveOrientedContainer(),
+                    $this->participant_repository
                 );
 
                 $this->ctrl->forwardCommand($gui);
diff --git a/components/ILIAS/Test/classes/class.ilTestEvaluationGUI.php b/components/ILIAS/Test/classes/class.ilTestEvaluationGUI.php
index 693213ee7747..f06b214de20f 100755
--- a/components/ILIAS/Test/classes/class.ilTestEvaluationGUI.php
+++ b/components/ILIAS/Test/classes/class.ilTestEvaluationGUI.php
@@ -18,8 +18,10 @@
 
 declare(strict_types=1);
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Results\Presentation\TitlesBuilder as ResultsTitlesBuilder;
 use ILIAS\Test\Presentation\PrintLayoutProvider;
+use ILIAS\Test\TestDIC;
 use ILIAS\UI\Component\ViewControl\Mode as ViewControlMode;
 use ILIAS\UI\Component\Link\Standard as StandardLink;
 use ILIAS\UI\Component\Panel\Sub as SubPanel;
@@ -48,11 +50,13 @@ class ilTestEvaluationGUI extends ilTestServiceGUI
     private const DEFAULT_CMD = 'outUserListOfAnswerPasses';
     protected ilTestAccess $testAccess;
     protected ilTestProcessLockerFactory $processLockerFactory;
+    private readonly ParticipantRepository $participant_repository;
 
     public function __construct(ilObjTest $object)
     {
         parent::__construct($object);
         $this->participant_access_filter = new ilTestParticipantAccessFilterFactory($this->access);
+        $this->participant_repository = TestDIC::dic()['participant.repository'];
 
         $this->processLockerFactory = new ilTestProcessLockerFactory(
             new ilSetting('assessment'),
@@ -138,10 +142,7 @@ function (string $v): SubPanel {
                     $attempt_id = ilObjTest::_getResultPass($value);
                     $components = $this->buildAttemptComponents($value, $attempt_id, false, true);
                     return $this->ui_factory->panel()->sub(
-                        $this->buildResultsTitle(
-                            ilObjUser::_lookupFullname($this->object->_getUserIdFromActiveId($value)),
-                            $attempt_id
-                        ),
+                        $this->buildResultsTitle($value, $attempt_id),
                         $components
                     );
                 },
@@ -195,10 +196,7 @@ public function showResults(): void
         }
 
         $results_panel = $this->ui_factory->panel()->report(
-            $this->buildResultsTitle(
-                ilObjUser::_lookupFullname($this->object->_getUserIdFromActiveId($current_active_id)),
-                $attempt_id
-            ),
+            $this->buildResultsTitle($current_active_id, $attempt_id),
             $this->buildAttemptComponents($current_active_id, $attempt_id, true, false)
         );
 
@@ -341,7 +339,7 @@ public function outUserPassDetails(): void
                 true
             ),
             $settings,
-            $this->buildResultsTitle($this->user->getFullname(), $pass),
+            $this->buildResultsTitle($active_id, $pass),
             false
         );
 
@@ -817,7 +815,7 @@ protected function sendPage(string $page)
         $this->http->close();
     }
 
-    protected function buildResultsTitle(string $fullname, int $pass): string
+    protected function buildResultsTitle(int $active_id, int $pass): string
     {
         if ($this->object->getAnonymity()) {
             return sprintf(
@@ -828,7 +826,7 @@ protected function buildResultsTitle(string $fullname, int $pass): string
         return sprintf(
             $this->lng->txt('tst_result_user_name_pass'),
             $pass + 1,
-            $fullname
+            $this->participant_repository->getParticipantByActiveId($this->object->getTestId(), $active_id)->getDisplayName($this->lng)
         );
     }
 
diff --git a/components/ILIAS/Test/classes/class.ilTestParticipantList.php b/components/ILIAS/Test/classes/class.ilTestParticipantList.php
index bd61cb6c2bd5..eb73186dad59 100755
--- a/components/ILIAS/Test/classes/class.ilTestParticipantList.php
+++ b/components/ILIAS/Test/classes/class.ilTestParticipantList.php
@@ -252,17 +252,33 @@ public function buildScoringsQuery(): string
     public function getScoringTableRows(): array
     {
         $rows = [];
+        $participant_repository = $this->test_obj->getLocalDIC()['participant.repository'];
 
         foreach ($this as $participant) {
-            $row = [
+            $firstname = $participant->getFirstname();
+            $lastname = $participant->getLastname();
+
+            if ($participant->getUsrId() === ANONYMOUS_USER_ID) {
+                $name = explode(
+                    ',',
+                    $participant_repository->getParticipantByActiveId(
+                        $this->test_obj->getTestId(),
+                        $participant->getActiveId()
+                    )->getDisplayName($this->lng)
+                );
+                if (isset($name[0], $name[1])) {
+                    $firstname = explode(' ', trim($name[1]))[0] ?? '';
+                    $lastname = explode(' ', trim($name[0]))[0] ?? '';
+                }
+            }
+
+            $rows[] = [
                 'usr_id' => $participant->getUsrId(),
                 'active_id' => $participant->getActiveId(),
                 'login' => $participant->getLogin(),
-                'firstname' => $participant->getFirstname(),
-                'lastname' => $participant->getLastname()
+                'firstname' => $firstname,
+                'lastname' => $lastname
             ];
-
-            $rows[] = $row;
         }
 
         return $rows;
diff --git a/components/ILIAS/Test/classes/class.ilTestResultsGUI.php b/components/ILIAS/Test/classes/class.ilTestResultsGUI.php
index cea9b8df6fd5..a691d6e8cd2f 100755
--- a/components/ILIAS/Test/classes/class.ilTestResultsGUI.php
+++ b/components/ILIAS/Test/classes/class.ilTestResultsGUI.php
@@ -18,10 +18,10 @@
 
 declare(strict_types=1);
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\RequestDataCollector;
 use ILIAS\Test\Presentation\TabsManager;
 use ILIAS\Test\Logging\TestLogger;
-use ILIAS\Test\Settings\ScoreReporting\SettingsResultSummary;
 use ILIAS\Test\Settings\ScoreReporting\ScoreReportingTypes;
 use ILIAS\TestQuestionPool\Questions\GeneralQuestionPropertiesRepository;
 use ILIAS\Test\Results\Toplist\TestTopListRepository;
@@ -73,7 +73,8 @@ public function __construct(
         private readonly GlobalHttpState $http,
         private readonly DataFactory $data_factory,
         private readonly ilTestSession $test_session,
-        private readonly ilTestObjectiveOrientedContainer $objective_parent
+        private readonly ilTestObjectiveOrientedContainer $objective_parent,
+        private readonly ParticipantRepository $participant_repository
     ) {
     }
 
@@ -153,7 +154,8 @@ public function executeCommand(): void
                     $this->ui_factory,
                     $this->ui_renderer,
                     $this->data_factory,
-                    $this->http
+                    $this->http,
+                    $this->participant_repository
                 );
                 $this->ctrl->forwardCommand($gui);
                 break;
diff --git a/components/ILIAS/Test/classes/class.ilTestToplistGUI.php b/components/ILIAS/Test/classes/class.ilTestToplistGUI.php
index 2a45f0f4b16c..5ebc9e6309e5 100755
--- a/components/ILIAS/Test/classes/class.ilTestToplistGUI.php
+++ b/components/ILIAS/Test/classes/class.ilTestToplistGUI.php
@@ -18,6 +18,7 @@
 
 declare(strict_types=1);
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Results\Toplist\TestTopListRepository;
 use ILIAS\Test\Results\Toplist\DataRetrieval;
 use ILIAS\Test\Results\Toplist\TopListOrder;
@@ -45,7 +46,8 @@ public function __construct(
         protected readonly UIFactory $ui_factory,
         protected readonly UIRenderer $ui_renderer,
         protected readonly DataFactory $data_factory,
-        protected readonly GlobalHttpState $http_state
+        protected readonly GlobalHttpState $http_state,
+        protected readonly ParticipantRepository $participant_repository
     ) {
     }
 
@@ -133,7 +135,8 @@ protected function buildTable(string $title, TopListType $list_type, TopListOrde
             $this->ui_renderer,
             $this->data_factory,
             $list_type,
-            $order_by
+            $order_by,
+            $this->participant_repository
         );
         return $this->ui_factory->table()
             ->data($title, $table->getColumns(), $table)
diff --git a/components/ILIAS/Test/src/Participants/ParticipantRepository.php b/components/ILIAS/Test/src/Participants/ParticipantRepository.php
index 9a2a56b1a700..7f6e27e8072d 100755
--- a/components/ILIAS/Test/src/Participants/ParticipantRepository.php
+++ b/components/ILIAS/Test/src/Participants/ParticipantRepository.php
@@ -356,6 +356,7 @@ private function getActiveParticipantsQuery(): string
 						ta.anonymous_id,
 						ta.tries,
 						ta.submitted,
+						ta.importname,
 						ta.last_finished_pass,
 						ta.last_started_pass,
 						COALESCE(ta.last_started_pass, -1) <> COALESCE(ta.last_finished_pass, -1) as unfinished_attempts,
@@ -394,6 +395,7 @@ private function getInvitedParticipantsQuery(): string
 						ta.anonymous_id,
 						ta.tries,
 						ta.submitted,
+						ta.importname,
 						ta.last_finished_pass,
 						ta.last_started_pass,
 						COALESCE(ta.last_started_pass, -1) <> COALESCE(ta.last_finished_pass, -1) as unfinished_attempts,
diff --git a/components/ILIAS/Test/src/Participants/ParticipantTableDeleteResultsAction.php b/components/ILIAS/Test/src/Participants/ParticipantTableDeleteResultsAction.php
index 808331505d00..22ddff5b9323 100644
--- a/components/ILIAS/Test/src/Participants/ParticipantTableDeleteResultsAction.php
+++ b/components/ILIAS/Test/src/Participants/ParticipantTableDeleteResultsAction.php
@@ -84,7 +84,7 @@ public function getModal(
                     (string) $v->getUserId(),
                     $this->test_obj->getAnonymity()
                         ? $this->lng->txt('anonymous')
-                        : \ilObjUser::_lookupFullname($v->getUserId())
+                        : $v->getDisplayName($this->lng)
                 ),
                 $selected_participants
             )
diff --git a/components/ILIAS/Test/src/Results/Toplist/DataRetrieval.php b/components/ILIAS/Test/src/Results/Toplist/DataRetrieval.php
index 513954455e56..89c78dbbd397 100755
--- a/components/ILIAS/Test/src/Results/Toplist/DataRetrieval.php
+++ b/components/ILIAS/Test/src/Results/Toplist/DataRetrieval.php
@@ -23,6 +23,7 @@
 use ILIAS\Data\Factory as DataFactory;
 use ILIAS\Data\Range;
 use ILIAS\Data\Order;
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\UI\Component\Symbol\Icon\Standard as Icon;
 use ILIAS\UI\Component\Table\DataRowBuilder;
 use ILIAS\UI\Factory as UIFactory;
@@ -39,7 +40,8 @@ public function __construct(
         protected readonly UIRenderer $ui_renderer,
         protected readonly DataFactory $data_factory,
         protected readonly TopListType $list_type,
-        protected readonly TopListOrder $order_by
+        protected readonly TopListOrder $order_by,
+        protected readonly ParticipantRepository $participant_repository
     ) {
     }
 
@@ -152,7 +154,7 @@ private function buildBasicItemFromRowArray(array $row): array
             'rank' => "{$row['rank']}.",
             'participant' => $this->test_obj->isHighscoreAnon() && (int) $row['usr_id'] !== $this->user->getId()
                 ? '-, -'
-                : $row['lastname'] . ', ' . $row['firstname'],
+                : $this->participant_repository->getParticipantByActiveId($this->test_obj->getTestId(), $row['active_id'])->getDisplayName($this->lng),
             'is_actor' => isset($row['usr_id']) && ((int) $row['usr_id'] === $this->user->getId())
         ];
     }
diff --git a/components/ILIAS/Test/src/Results/Toplist/TestTopListRepository.php b/components/ILIAS/Test/src/Results/Toplist/TestTopListRepository.php
index 1ed3e2dae556..568a93edf714 100755
--- a/components/ILIAS/Test/src/Results/Toplist/TestTopListRepository.php
+++ b/components/ILIAS/Test/src/Results/Toplist/TestTopListRepository.php
@@ -32,7 +32,7 @@ public function getGeneralToplist(\ilObjTest $object, TopListOrder $order_by): \
         $this->db->setLimit($object->getHighscoreTopNum(), 0);
         $result = $this->db->query(
             '
-			SELECT tst_result_cache.*, round(points/maxpoints*100,2) as percentage, tst_pass_result.workingtime, usr_data.usr_id, usr_data.firstname, usr_data.lastname
+			SELECT tst_result_cache.*, round(points/maxpoints*100,2) as percentage, tst_pass_result.workingtime, usr_data.usr_id, usr_data.firstname, usr_data.lastname, tst_active.active_id
 			FROM object_reference
 			INNER JOIN tst_tests ON object_reference.obj_id = tst_tests.obj_fi
 			INNER JOIN tst_active ON tst_tests.test_id = tst_active.test_fi
@@ -107,7 +107,7 @@ public function getUserToplistByPercentage(\ilObjTest $object, int $a_user_id):
 
         $result = $this->db->query("
             SELECT tst_result_cache.*, round(reached_points/max_points*100) as percentage ,
-                tst_pass_result.workingtime, usr_id, usr_data.firstname, usr_data.lastname
+                tst_pass_result.workingtime, usr_id, usr_data.firstname, usr_data.lastname, tst_active.active_id
             FROM object_reference
             INNER JOIN tst_tests ON object_reference.obj_id = tst_tests.obj_fi
             INNER JOIN tst_active ON tst_tests.test_id = tst_active.test_fi
@@ -192,7 +192,7 @@ public function getUserToplistByWorkingtime(\ilObjTest $object, int $a_user_id):
 
         $result = $this->db->query("
 			SELECT tst_result_cache.*, round(reached_points/max_points*100) as percentage,
-				tst_pass_result.workingtime, usr_id, usr_data.firstname, usr_data.lastname
+				tst_pass_result.workingtime, usr_id, usr_data.firstname, usr_data.lastname, tst_active.active_id
 			FROM object_reference
 			INNER JOIN tst_tests ON object_reference.obj_id = tst_tests.obj_fi
 			INNER JOIN tst_active ON tst_tests.test_id = tst_active.test_fi
diff --git a/components/ILIAS/Test/src/Scoring/Manual/ScoringByQuestionTableBinder.php b/components/ILIAS/Test/src/Scoring/Manual/ScoringByQuestionTableBinder.php
index d4ff3f0a1615..684b6e4d1fb1 100644
--- a/components/ILIAS/Test/src/Scoring/Manual/ScoringByQuestionTableBinder.php
+++ b/components/ILIAS/Test/src/Scoring/Manual/ScoringByQuestionTableBinder.php
@@ -20,6 +20,7 @@
 
 namespace ILIAS\Test\Scoring\Manual;
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\UI\Component\Table\DataRetrieval;
 use ILIAS\UI\Component\Table\DataRowBuilder;
 use ILIAS\Data\Range;
@@ -36,6 +37,7 @@ public function __construct(
         private readonly \DateTimeZone $timezone,
         private readonly \ilTestParticipantAccessFilterFactory $participant_access_filter_factory,
         private readonly \ilObjTest $test_obj,
+        private readonly ParticipantRepository $participant_repository,
         private readonly int $question_id
     ) {
     }
@@ -169,7 +171,7 @@ function (
 
                 $row = [
                     "{$active_id}_{$pd->getPass()}",
-                    ScoringByQuestionTable::COLUMN_NAME => $this->buildParticipantName($current_participant),
+                    ScoringByQuestionTable::COLUMN_NAME => $this->buildParticipantName($current_participant, $active_id),
                     ScoringByQuestionTable::COLUMN_ATTEMPT => $pd->getPass() + 1,
                     ScoringByQuestionTable::COLUMN_POINTS_REACHED => $current_pass->getStatusOfAttempt()->isFinished() ? ($question_result['reached'] ?? 0.0) : 0.0,
                     ScoringByQuestionTable::COLUMN_POINTS_AVAILABLE => $current_participant->getQuestionByAttemptAndId($pd->getPass(), $question_id)['points'] ?? 0.0,
@@ -236,12 +238,13 @@ static function (array $c, \ilTestEvaluationUserData $v): array {
         );
     }
 
-    private function buildParticipantName(\ilTestEvaluationUserData $participant_data): string
+    private function buildParticipantName(\ilTestEvaluationUserData $participant_data, int $active_id): string
     {
-        if ($this->test_obj->getAnonymity()) {
-            return $this->lng->txt('anonymous');
-        }
-        return $participant_data->getName();
+        $participant = $this->participant_repository->getParticipantByActiveId($this->test_obj->getTestId(), $active_id);
+        $importname = $participant->getImportname();
+        return $participant->getUserId() === ANONYMOUS_USER_ID && $importname !== null && $importname !== ''
+            ? $participant->getDisplayName($this->lng)
+            : $participant_data->getName();
     }
 
     private function buildFinalizedByName(array $feedback_data): string
diff --git a/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByParticipantGUI.php b/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByParticipantGUI.php
index d8c222714697..961c69a856b8 100755
--- a/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByParticipantGUI.php
+++ b/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByParticipantGUI.php
@@ -20,6 +20,7 @@
 
 namespace ILIAS\Test\Scoring\Manual;
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Presentation\TabsManager;
 use ILIAS\Test\Logging\TestScoringInteractionTypes;
 use ILIAS\Test\Logging\AdditionalInformationGenerator;
@@ -40,10 +41,12 @@ class TestScoringByParticipantGUI extends \ilTestServiceGUI
     public const PART_FILTER_MANSCORING_NONE = 5;
 
     protected \ilTestAccess $test_access;
+    protected ParticipantRepository $participant_repository;
 
     public function __construct(\ilObjTest $object)
     {
         parent::__construct($object);
+        $this->participant_repository = $object->getLocalDIC()['participant.repository'];
     }
 
     /**
@@ -181,10 +184,10 @@ private function showManScoringParticipantScreen(\ilPropertyFormGUI $form = null
 
         $table = new TestScoringByParticipantPassesOverviewTableGUI($this, 'showManScoringParticipantScreen');
 
-        $user_id = $this->object->_getUserIdFromActiveId($active_id);
-        $user_fullname = $this->object->userLookupFullName($user_id, false, true);
-        $table_title = sprintf($this->lng->txt('tst_pass_overview_for_participant'), $user_fullname);
-        $table->setTitle($table_title);
+        $participant = $this->participant_repository->getParticipantByActiveId($this->object->getTestId(), $active_id);
+        $table->setTitle(
+            sprintf($this->lng->txt('tst_pass_overview_for_participant'), $participant->getDisplayName($this->lng))
+        );
 
         $passOverviewData = $this->service->getPassOverviewData($active_id);
         $table->setData($passOverviewData['passes']);
diff --git a/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByQuestionGUI.php b/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByQuestionGUI.php
index abfceafbc3c1..df6f95e0ca5e 100755
--- a/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByQuestionGUI.php
+++ b/components/ILIAS/Test/src/Scoring/Manual/class.TestScoringByQuestionGUI.php
@@ -20,6 +20,7 @@
 
 namespace ILIAS\Test\Scoring\Manual;
 
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Presentation\TabsManager;
 use ILIAS\Test\Logging\TestScoringInteractionTypes;
 use ILIAS\Test\Logging\AdditionalInformationGenerator;
@@ -141,6 +142,7 @@ protected function showManScoringByQuestionParticipantsTable(
                     new \DateTimeZone($this->user->getTimeZone()),
                     $this->participant_access_filter,
                     $this->object,
+                    $this->participant_repository,
                     $question_id
                 )
             )
@@ -389,12 +391,8 @@ private function buildAutosavedSolutionPanel(
 
     private function getModalTitle(int $active_id): string
     {
-        if ($this->object->getAnonymity() === true) {
-            return $this->lng->txt('answers_of') . ' ' . $this->lng->txt('anonymous');
-        }
-
-        $participant = $this->object->getCompleteEvaluationData()->getParticipant($active_id);
-        return "{$this->lng->txt('answers_of')} {$participant->getName()} ({$participant->getLogin()})";
+        $participant = $this->participant_repository->getParticipantByActiveId($this->object->getTestId(), $active_id);
+        return "{$this->lng->txt('answers_of')} {$participant->getDisplayName($this->lng, $this->object->getAnonymity())}";
     }
 
     private function buildForm(
diff --git a/components/ILIAS/Test/tests/Scoring/Toplist/DataRetrievalTest.php b/components/ILIAS/Test/tests/Scoring/Toplist/DataRetrievalTest.php
index 677c474cd671..e62c1911becb 100755
--- a/components/ILIAS/Test/tests/Scoring/Toplist/DataRetrievalTest.php
+++ b/components/ILIAS/Test/tests/Scoring/Toplist/DataRetrievalTest.php
@@ -21,6 +21,7 @@
 namespace Results\Toplist;
 
 use ILIAS\Data\Factory;
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Results\Toplist\TestTopListRepository;
 use ILIAS\Test\Results\Toplist\DataRetrieval;
 use ILIAS\Test\Results\Toplist\TopListOrder;
@@ -56,7 +57,8 @@ protected function setUp(): void
             $DIC['ui.renderer'],
             $this->createMock(Factory::class),
             TopListType::GENERAL,
-            TopListOrder::BY_SCORE
+            TopListOrder::BY_SCORE,
+            $this->createMock(ParticipantRepository::class)
         );
     }
 
diff --git a/components/ILIAS/Test/tests/ilTestBaseTestCaseTrait.php b/components/ILIAS/Test/tests/ilTestBaseTestCaseTrait.php
index 82f956c96ea8..98fee120c2e3 100644
--- a/components/ILIAS/Test/tests/ilTestBaseTestCaseTrait.php
+++ b/components/ILIAS/Test/tests/ilTestBaseTestCaseTrait.php
@@ -379,6 +379,10 @@ protected function buildLocalDICMock(): ILIAS\Test\TestDIC
             => $this->createMock(
                 \ILIAS\Test\RequestDataCollector::class
             );
+        $local_dic_mock['participant.repository'] = fn(Pimple\Container $c)
+            => $this->createMock(
+                \ILIAS\Test\Participants\ParticipantRepository::class
+            );
         $local_dic_mock['participant.access_filter.factory'] = fn(Pimple\Container $c)
             => $this->createMock(
                 \ilTestParticipantAccessFilterFactory::class
diff --git a/components/ILIAS/Test/tests/ilTestResultsGUITest.php b/components/ILIAS/Test/tests/ilTestResultsGUITest.php
index 85b3e0138c36..efc51d394c95 100755
--- a/components/ILIAS/Test/tests/ilTestResultsGUITest.php
+++ b/components/ILIAS/Test/tests/ilTestResultsGUITest.php
@@ -18,6 +18,8 @@
 
 declare(strict_types=1);
 
+use ILIAS\Test\Participants\ParticipantRepository;
+
 /**
  * Class ilTestResultsGUITest
  * @author Marvin Beym <mbeym@databay.de>
@@ -56,7 +58,8 @@ protected function setUp(): void
             $DIC['http'],
             $this->createMock(ILIAS\Data\Factory::class),
             $this->createMock(ilTestSession::class),
-            $this->createMock(ilTestObjectiveOrientedContainer::class)
+            $this->createMock(ilTestObjectiveOrientedContainer::class),
+            $this->createMock(ParticipantRepository::class)
         );
     }
 
diff --git a/components/ILIAS/Test/tests/ilTestToplistGUITest.php b/components/ILIAS/Test/tests/ilTestToplistGUITest.php
index 1b1fcfab7098..1778d6f4ba15 100755
--- a/components/ILIAS/Test/tests/ilTestToplistGUITest.php
+++ b/components/ILIAS/Test/tests/ilTestToplistGUITest.php
@@ -19,6 +19,7 @@
 declare(strict_types=1);
 
 use ILIAS\Data\Factory;
+use ILIAS\Test\Participants\ParticipantRepository;
 use ILIAS\Test\Results\Toplist\TestTopListRepository;
 
 /**
@@ -44,7 +45,8 @@ protected function setUp(): void
             $DIC['ui.factory'],
             $DIC['ui.renderer'],
             $this->createMock(Factory::class),
-            $DIC['http']
+            $DIC['http'],
+            $this->createMock(ParticipantRepository::class)
         );
     }