diff --git a/cmd/omegaup-grader/frontend_handler.go b/cmd/omegaup-grader/frontend_handler.go
index 3e1dba5..e613fb8 100644
--- a/cmd/omegaup-grader/frontend_handler.go
+++ b/cmd/omegaup-grader/frontend_handler.go
@@ -277,9 +277,11 @@ func broadcastRun(
 	}
 	score := base.RationalToFloat(run.Result.Score)
 	contestScore := base.RationalToFloat(run.Result.ContestScore)
+	verdict := run.Result.Verdict
 	if run.ScoreMode == "all_or_nothing" && score != 1 {
 		score = 0
 		contestScore = 0
+		verdict = "WA"
 	}
 	msg := runFinishedMessage{
 		Message: "/run/update/",
@@ -293,7 +295,7 @@ func broadcastRun(
 			Score:        score,
 			ContestScore: contestScore,
 			Status:       "ready",
-			Verdict:      run.Result.Verdict,
+			Verdict:      verdict,
 			Language:     run.Run.Language,
 			Time:         -1,
 			SubmitDelay:  -1,
diff --git a/cmd/omegaup-grader/frontend_handler_test.go b/cmd/omegaup-grader/frontend_handler_test.go
index 88da0a8..eafa1a2 100644
--- a/cmd/omegaup-grader/frontend_handler_test.go
+++ b/cmd/omegaup-grader/frontend_handler_test.go
@@ -383,7 +383,7 @@ func TestBroadcastRun(t *testing.T) {
 		},
 		{
 			scoreMode:     "all_or_nothing",
-			verdict:       "PA",
+			verdict:       "WA",
 			score:         big.NewRat(1, 2),
 			expectedScore: 0.,
 			scoreByGroup: map[string]any{