diff --git a/src/pages/api/user.ts b/src/pages/api/user.ts
index e0d20941..92cd6ffb 100644
--- a/src/pages/api/user.ts
+++ b/src/pages/api/user.ts
@@ -2,7 +2,7 @@ import {PERMISSIONS} from "@/constants/userPermissions";
 import {app, adminApp} from "@/firebase";
 import {User} from "@/interfaces/user";
 import {sessionOptions} from "@/lib/session";
-import {deleteDoc, doc, getDoc, getFirestore} from "firebase/firestore";
+import {collection, deleteDoc, doc, getDoc, getDocs, getFirestore, query, where} from "firebase/firestore";
 import {getAuth} from "firebase-admin/auth";
 import {withIronSessionApiRoute} from "iron-session/next";
 import {NextApiRequest, NextApiResponse} from "next";
@@ -41,7 +41,7 @@ async function del(req: NextApiRequest, res: NextApiResponse) {
 		return;
 	}
 
-	const targetUser = docTargetUser.data() as User;
+	const targetUser = {...docTargetUser.data(), id: docTargetUser.id} as User;
 
 	const permission = PERMISSIONS.deleteUser[targetUser.type];
 	if (!permission.includes(user.type)) {
@@ -53,6 +53,14 @@ async function del(req: NextApiRequest, res: NextApiResponse) {
 	await deleteDoc(doc(db, "users", id));
 
 	res.json({ok: true});
+
+	const statsQuery = query(collection(db, "stats"), where("user", "==", targetUser.id));
+	const statsSnapshot = await getDocs(statsQuery);
+	await Promise.all(
+		statsSnapshot.docs.map(async (doc) => {
+			return await deleteDoc(doc.ref);
+		}),
+	);
 }
 
 async function get(req: NextApiRequest, res: NextApiResponse) {