diff --git a/spec/tests/AdHelper.spec.ts b/spec/tests/AdHelper.spec.ts
index e76fc42..21464c2 100644
--- a/spec/tests/AdHelper.spec.ts
+++ b/spec/tests/AdHelper.spec.ts
@@ -5,30 +5,30 @@ import * as Conviva from '@convivainc/conviva-js-coresdk';
 describe(AdHelper, () => {
   describe('mapAdPosition', () => {
     it('should map ad position to preroll', () => {
-      const duration = 100;
+      const mainContentDuration = 100;
       const adBreak = {
         scheduleTime: 0
       } as AdBreak;
 
-      expect(AdHelper.mapCsaiAdPosition(adBreak, duration)).toEqual(Conviva.Constants.AdPosition.PREROLL)
+      expect(AdHelper.mapCsaiAdPosition(adBreak, mainContentDuration)).toEqual(Conviva.Constants.AdPosition.PREROLL)
     })
 
     it('should map ad position to postroll', () => {
-      const duration = 100;
+      const mainContentDuration = 100;
       const adBreak = {
         scheduleTime: 100
       } as AdBreak;
 
-      expect(AdHelper.mapCsaiAdPosition(adBreak, duration)).toEqual(Conviva.Constants.AdPosition.POSTROLL)
+      expect(AdHelper.mapCsaiAdPosition(adBreak, mainContentDuration)).toEqual(Conviva.Constants.AdPosition.POSTROLL)
     })
 
     it('should map ad position to midroll', () => {
-      const duration = 100;
+      const mainContentDuration = 100;
       const adBreak = {
         scheduleTime: 50
       } as AdBreak;
 
-      expect(AdHelper.mapCsaiAdPosition(adBreak, duration)).toEqual(Conviva.Constants.AdPosition.MIDROLL)
+      expect(AdHelper.mapCsaiAdPosition(adBreak, mainContentDuration)).toEqual(Conviva.Constants.AdPosition.MIDROLL)
     })
   })
 
@@ -60,8 +60,7 @@ describe(AdHelper, () => {
 
   describe('extractConvivaAdInfo', () => {
     it('should extract minimal Conviva ad info', () => {
-      const player = {} as PlayerAPI;
-      const duration = 100;
+      const mainContentDuration = 100;
       const adBreakEvent = {
         adBreak: {
           scheduleTime: 0
@@ -74,7 +73,7 @@ describe(AdHelper, () => {
         },
       } as AdEvent;
 
-      expect(AdHelper.extractCsaiConvivaAdInfo(player, adBreakEvent, duration, adEvent)).toEqual({
+      expect(AdHelper.extractCsaiConvivaAdInfo(adBreakEvent, mainContentDuration, adEvent)).toEqual({
         "c3.ad.creativeId": "NA",
         "c3.ad.firstAdId": "123",
         "c3.ad.firstAdSystem": "NA",
@@ -90,8 +89,7 @@ describe(AdHelper, () => {
     })
 
     it('should extract full Conviva ad info', () => {
-      const player = {} as PlayerAPI;
-      const duration = 100;
+      const mainContentDuration = 100;
       const adBreakEvent = {
         adBreak: {
           scheduleTime: 0
@@ -115,7 +113,7 @@ describe(AdHelper, () => {
         } as Ad | LinearAd,
       } as AdEvent;
 
-      expect(AdHelper.extractCsaiConvivaAdInfo(player, adBreakEvent, duration, adEvent)).toEqual({
+      expect(AdHelper.extractCsaiConvivaAdInfo(adBreakEvent, mainContentDuration, adEvent)).toEqual({
         [Conviva.Constants.ASSET_NAME]: "Test title",
         [Conviva.Constants.STREAM_URL]: 'https://test.com',
         [Conviva.Constants.DURATION]: 100,
diff --git a/src/ts/ConvivaAnalytics.ts b/src/ts/ConvivaAnalytics.ts
index 0ff2771..ac886f5 100644
--- a/src/ts/ConvivaAnalytics.ts
+++ b/src/ts/ConvivaAnalytics.ts
@@ -45,7 +45,10 @@ export class ConvivaAnalytics {
 
   private readonly logger: Conviva.LoggingInterface = new Html5Logging();
 
-  private duration: number = 0;
+  /**
+   * Tracks the duration of main content. Needed as the player may return the ad duration instead.
+   */
+  private mainContentDuration = 0;
 
   public readonly ssai: Omit<ConvivaAnalyticsSsai, 'reset'>;
 
@@ -281,7 +284,7 @@ export class ConvivaAnalytics {
   private onAdStarted = (event: AdEvent) => {
     this.debugLog('[ ConvivaAnalytics ] [ Player Event ] ad started', event);
 
-    const adInfo = AdHelper.extractCsaiConvivaAdInfo(this.player, this.lastAdBreakEvent, this.duration, event);
+    const adInfo = AdHelper.extractCsaiConvivaAdInfo(this.lastAdBreakEvent, this.mainContentDuration, event);
     const bitrateKbps = event.ad.data?.bitrate;
 
     this.convivaAnalyticsTracker.trackAdStarted(adInfo, Conviva.Constants.AdType.CLIENT_SIDE, bitrateKbps);
@@ -368,7 +371,7 @@ export class ConvivaAnalytics {
 
   private onSourceLoaded = (event: PlayerEventBase) => {
     this.debugLog('[ ConvivaAnalytics ] [ Player Event ] onSourceLoaded', event);
-    this.duration = this.player.getDuration();
+    this.mainContentDuration = this.player.getDuration();
   };
 
   private registerPlayerEvents(): void {
diff --git a/src/ts/helper/AdHelper.ts b/src/ts/helper/AdHelper.ts
index a3e5c4a..26614f3 100644
--- a/src/ts/helper/AdHelper.ts
+++ b/src/ts/helper/AdHelper.ts
@@ -43,14 +43,14 @@ export interface SsaiAdInfo {
 export class AdHelper {
   public static mapCsaiAdPosition(
     adBreak: AdBreak,
-    duration: number,
+    mainContentDuration: number,
   ): Conviva.valueof<Conviva.ConvivaConstants['AdPosition']> {
 
     if (adBreak.scheduleTime <= 0) {
       return Conviva.Constants.AdPosition.PREROLL;
     }
 
-    if (adBreak.scheduleTime >= duration) {
+    if (adBreak.scheduleTime >= mainContentDuration) {
       return Conviva.Constants.AdPosition.POSTROLL;
     }
 
@@ -77,7 +77,11 @@ export class AdHelper {
     return formattedErrorParts.join(' ');
   }
 
-  public static extractCsaiConvivaAdInfo(player: PlayerAPI, adBreakEvent: AdBreakEvent, duration: number, adEvent: AdEvent): Conviva.ConvivaMetadata {
+  public static extractCsaiConvivaAdInfo(
+    adBreakEvent: AdBreakEvent,
+    mainContentDuration: number,
+    adEvent: AdEvent,
+  ): Conviva.ConvivaMetadata {
     const ad = adEvent.ad as Ad | LinearAd;
     const adData = ad.data as undefined | AdData | VastAdData;
 
@@ -108,7 +112,7 @@ export class AdHelper {
     const adInfo: Conviva.ConvivaMetadata = {
       'c3.ad.id': ad.id,
       'c3.ad.technology': Conviva.Constants.AdType.CLIENT_SIDE,
-      'c3.ad.position': AdHelper.mapCsaiAdPosition(adBreakEvent.adBreak, duration),
+      'c3.ad.position': AdHelper.mapCsaiAdPosition(adBreakEvent.adBreak, mainContentDuration),
       'c3.ad.system': adSystemName,
       'c3.ad.creativeId': creativeId,
       'c3.ad.firstAdId': firstAdId,