diff --git a/backend/rating.go b/backend/rating.go
index b0014af..779839b 100644
--- a/backend/rating.go
+++ b/backend/rating.go
@@ -874,6 +874,12 @@ func mergeRatingActivitySegments(
 		return valid[i].Label < valid[j].Label
 	})
 
+	type segmentBounds struct {
+		start float64
+		end   float64
+		ok    bool
+	}
+
 	type activityBlock struct {
 		start           float64
 		end             float64
@@ -881,13 +887,28 @@ func mergeRatingActivitySegments(
 		scoreWeight     float64
 		labels          map[string]bool
 		positionWeights map[string]float64
+		positionBounds  map[string]segmentBounds
 		marker          float64
 		markerWeight    float64
 	}
 
-	var addRatingPositionWeight func(weights map[string]float64, label string, weight float64)
+	var addRatingPositionSignal func(
+		weights map[string]float64,
+		bounds map[string]segmentBounds,
+		label string,
+		weight float64,
+		start float64,
+		end float64,
+	)
 
-	addRatingPositionWeight = func(weights map[string]float64, label string, weight float64) {
+	addRatingPositionSignal = func(
+		weights map[string]float64,
+		bounds map[string]segmentBounds,
+		label string,
+		weight float64,
+		start float64,
+		end float64,
+	) {
 		label = strings.ToLower(strings.TrimSpace(label))
 		if label == "" {
 			return
@@ -896,18 +917,45 @@ func mergeRatingActivitySegments(
 		if strings.HasPrefix(label, "combo:") {
 			raw := strings.TrimPrefix(label, "combo:")
 			for _, part := range strings.Split(raw, "+") {
-				addRatingPositionWeight(weights, part, weight)
+				addRatingPositionSignal(weights, bounds, part, weight, start, end)
 			}
 			return
 		}
 
 		normalized := normalizeRatingSignalLabel(label)
-		if strings.HasPrefix(normalized, "position:") {
-			weights[normalized] += weight
+		if !strings.HasPrefix(normalized, "position:") {
+			return
 		}
+
+		if end < start {
+			end = start
+		}
+
+		weights[normalized] += weight
+
+		b := bounds[normalized]
+		if !b.ok {
+			b = segmentBounds{
+				start: start,
+				end:   end,
+				ok:    true,
+			}
+		} else {
+			if start < b.start {
+				b.start = start
+			}
+			if end > b.end {
+				b.end = end
+			}
+		}
+
+		bounds[normalized] = b
 	}
 
-	effectiveRatingLabelsForBlock := func(labels map[string]bool, positionWeights map[string]float64) map[string]bool {
+	effectiveRatingLabelsForBlock := func(
+		labels map[string]bool,
+		positionWeights map[string]float64,
+	) (map[string]bool, string) {
 		out := map[string]bool{}
 
 		bestPosition := ""
@@ -940,7 +988,7 @@ func mergeRatingActivitySegments(
 			out[bestPosition] = true
 		}
 
-		return out
+		return out, bestPosition
 	}
 
 	segmentMarker := func(s aiSegmentMeta) float64 {
@@ -981,7 +1029,16 @@ func mergeRatingActivitySegments(
 		}
 
 		positionWeights := map[string]float64{}
-		addRatingPositionWeight(positionWeights, s.Label, conf*math.Max(1, dur))
+		positionBounds := map[string]segmentBounds{}
+
+		addRatingPositionSignal(
+			positionWeights,
+			positionBounds,
+			s.Label,
+			conf*math.Max(1, dur),
+			s.StartSeconds,
+			s.EndSeconds,
+		)
 
 		marker := segmentMarker(s)
 		markerWeight := segmentMarkerWeight(s)
@@ -993,6 +1050,7 @@ func mergeRatingActivitySegments(
 			scoreWeight:     dur,
 			labels:          labels,
 			positionWeights: positionWeights,
+			positionBounds:  positionBounds,
 			marker:          marker,
 			markerWeight:    markerWeight,
 		}
@@ -1004,7 +1062,7 @@ func mergeRatingActivitySegments(
 			return aiSegmentMeta{}, false
 		}
 
-		effectiveLabels := effectiveRatingLabelsForBlock(b.labels, b.positionWeights)
+		effectiveLabels, bestPosition := effectiveRatingLabelsForBlock(b.labels, b.positionWeights)
 		label := buildRatingComboLabel(effectiveLabels)
 		if label == "" {
 			return aiSegmentMeta{}, false
@@ -1012,6 +1070,24 @@ func mergeRatingActivitySegments(
 
 		sev := ratingSegmentSeverity(label)
 
+		start := b.start
+
+		// Wenn der finale Block eine Position trägt, soll die Anzeige/der Klick
+		// beim ersten echten Auftreten dieser Position starten — nicht schon bei
+		// früheren Body-/Object-Signalen aus demselben Aktivitätsblock.
+		if bestPosition != "" {
+			if bounds, ok := b.positionBounds[bestPosition]; ok && bounds.ok {
+				if bounds.start > start {
+					start = bounds.start
+				}
+			}
+		}
+
+		dur = b.end - start
+		if dur <= 0 {
+			return aiSegmentMeta{}, false
+		}
+
 		// Kurze Segmente dürfen bleiben, wenn sie stark genug sind.
 		if dur < minDurationSec && sev < 0.72 {
 			return aiSegmentMeta{}, false
@@ -1028,7 +1104,7 @@ func mergeRatingActivitySegments(
 		return aiSegmentMeta{
 			Label:           label,
 			Score:           ratingClamp01(score),
-			StartSeconds:    b.start,
+			StartSeconds:    start,
 			EndSeconds:      b.end,
 			DurationSeconds: dur,
 			AutoSelected:    true,
@@ -1095,7 +1171,14 @@ func mergeRatingActivitySegments(
 			cur.scoreSum += conf * dur
 			cur.scoreWeight += dur
 
-			addRatingPositionWeight(cur.positionWeights, n.Label, conf*math.Max(1, dur))
+			addRatingPositionSignal(
+				cur.positionWeights,
+				cur.positionBounds,
+				n.Label,
+				conf*math.Max(1, dur),
+				n.StartSeconds,
+				n.EndSeconds,
+			)
 		}
 
 		nextMarkerWeight := segmentMarkerWeight(n)
diff --git a/frontend/src/components/ui/RatingOverlay.tsx b/frontend/src/components/ui/RatingOverlay.tsx
index 959c0a8..ea29f07 100644
--- a/frontend/src/components/ui/RatingOverlay.tsx
+++ b/frontend/src/components/ui/RatingOverlay.tsx
@@ -518,7 +518,7 @@ function readMetaDurationSeconds(metaRaw: unknown): number {
   return Number.isFinite(n) && n > 0 ? n : 0
 }
 
-const RATING_SEGMENT_OPEN_PREROLL_SECONDS = 3
+const RATING_SEGMENT_OPEN_PREROLL_SECONDS = 0
 
 function segmentAnchorTime(
   obj: Record<string, unknown>,
@@ -603,10 +603,41 @@ function segmentPreviewTime(
   return undefined
 }
 
+function segmentStartTime(
+  obj: Record<string, unknown>,
+  durationSeconds: number
+): number | undefined {
+  return firstSegmentTimeNumber(obj, [
+    'openAtSec',
+    'openSeconds',
+    'seekSeconds',
+    'seekSec',
+    'jumpSeconds',
+    'jumpSec',
+    'startSec',
+    'startSeconds',
+    'start_s',
+    'start',
+    'from',
+    'startMs',
+    'startRatio',
+    'startPercent',
+    'startPct',
+  ], durationSeconds)
+}
+
 function segmentOpenTime(
   obj: Record<string, unknown>,
   durationSeconds: number
 ): number | undefined {
+  // Klick soll auf den Segment-Anfang springen, nicht auf den Preview-/Peak-Marker.
+  const start = segmentStartTime(obj, durationSeconds)
+
+  if (typeof start === 'number') {
+    return Math.max(0, start - RATING_SEGMENT_OPEN_PREROLL_SECONDS)
+  }
+
+  // Fallback für alte Daten ohne startSeconds.
   const anchor =
     segmentAnchorTime(obj, durationSeconds) ??
     segmentPreviewTime(obj, durationSeconds)