diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a892b8..6312c27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.29
+
+feat: add fail_reason for salmon run
+
 ## 0.1.28
 
 fix: allow random weapon
diff --git a/src/constant.ts b/src/constant.ts
index faa46ee..edeaaf0 100644
--- a/src/constant.ts
+++ b/src/constant.ts
@@ -1,7 +1,7 @@
 import type { StatInkPostBody, VsHistoryDetail } from "./types.ts";
 
 export const AGENT_NAME = "s3si.ts";
-export const S3SI_VERSION = "0.1.28";
+export const S3SI_VERSION = "0.1.29";
 export const NSOAPP_VERSION = "2.3.1";
 export const WEB_VIEW_VERSION = "1.0.0-433ec0e8";
 export const S3SI_LINK = "https://github.com/spacemeowx2/s3si.ts";
diff --git a/src/exporters/stat.ink.ts b/src/exporters/stat.ink.ts
index dd127b6..831584f 100644
--- a/src/exporters/stat.ink.ts
+++ b/src/exporters/stat.ink.ts
@@ -604,6 +604,15 @@ export class StatInkExporter implements GameExporter {
       }
     }
 
+    let fail_reason: StatInkCoopPostBody["fail_reason"] = null;
+    // failed
+    if (clear_waves !== 3 && detail.waveResults.length > 0) {
+      const lastWave = detail.waveResults[detail.waveResults.length - 1];
+      if (lastWave.teamDeliverCount >= lastWave.deliverNorm) {
+        fail_reason = "wipe_out";
+      }
+    }
+
     const result: StatInkCoopPostBody = {
       uuid: await gameId(detail.id),
       private: groupInfo?.mode === "PRIVATE_CUSTOM" ? "yes" : "no",
@@ -611,7 +620,7 @@ export class StatInkExporter implements GameExporter {
       stage: b64Number(detail.coopStage.id).toString(),
       danger_rate: dangerRate * 100,
       clear_waves,
-      fail_reason: null,
+      fail_reason,
       king_smell: smellMeter,
       king_salmonid: this.mapKing(detail.bossResult?.boss.id),
       clear_extra: bossResult?.hasDefeatBoss ? "yes" : "no",