diff --git a/scripts/src/hwlab-node-web-sentinel-service.ts b/scripts/src/hwlab-node-web-sentinel-service.ts
index 386a7e92..ac76026c 100644
--- a/scripts/src/hwlab-node-web-sentinel-service.ts
+++ b/scripts/src/hwlab-node-web-sentinel-service.ts
@@ -614,8 +614,9 @@ function plannedRunBacklog(config: WebProbeSentinelServiceConfig, db: Database):
   readonly staleAfterSeconds: number;
   readonly stale: boolean;
 } {
-  const count = countWhere(db, "status = 'planned'");
-  const oldest = db.query("SELECT id, scenario_id, created_at FROM runs WHERE status = 'planned' ORDER BY created_at ASC LIMIT 1")
+  const activeWhere = "status = 'planned' AND NOT EXISTS (SELECT 1 FROM runs newer WHERE newer.scenario_id = runs.scenario_id AND newer.status <> 'planned' AND newer.created_at > runs.created_at)";
+  const count = countWhere(db, activeWhere);
+  const oldest = db.query(`SELECT id, scenario_id, created_at FROM runs WHERE ${activeWhere} ORDER BY created_at ASC LIMIT 1`)
     .get() as Record<string, unknown> | null;
   const oldestCreatedAt = stringOrNull(oldest?.created_at);
   const oldestAgeSeconds = oldestCreatedAt === null ? null : ageSeconds(oldestCreatedAt);
@@ -1316,6 +1317,8 @@ function recordRunResult(config: WebProbeSentinelServiceConfig, db: Database, in
       artifact_count = excluded.artifact_count,
       updated_at = excluded.updated_at
   `).run(runId, scenarioId, config.node, config.lane, status, observerId, stateDir, reportJsonSha256, findingCount, artifactCount, thisMaintenanceFlag(input), createdAt, now, JSON.stringify({ source: "recorded-analyze-summary", valuesRedacted: true }));
+  const supersededPlannedRuns = db.query("UPDATE runs SET status = 'superseded', updated_at = ? WHERE status = 'planned' AND scenario_id = ? AND created_at < ?")
+    .run(now, scenarioId, createdAt);
   db.query("DELETE FROM findings WHERE run_id = ?").run(runId);
   for (const item of findings) {
     const findingId = stringOrNull(item.id) ?? stringOrNull(item.kind) ?? stringOrNull(item.code) ?? "finding";
@@ -1339,7 +1342,7 @@ function recordRunResult(config: WebProbeSentinelServiceConfig, db: Database, in
     findingCount,
     valuesRedacted: true,
   });
-  return { ok: true, runId, scenarioId, status, reportJsonSha256, findingCount, artifactCount, valuesRedacted: true };
+  return { ok: true, runId, scenarioId, status, reportJsonSha256, findingCount, artifactCount, supersededPlannedRuns: Number(supersededPlannedRuns.changes ?? 0), valuesRedacted: true };
 }
 
 function reportRunView(config: WebProbeSentinelServiceConfig, db: Database, view: string, runId: string | null): Record<string, unknown> {