diff --git a/src/idz/db/timeAttack.ts b/src/idz/db/timeAttack.ts
new file mode 100644
index 0000000..963260d
--- /dev/null
+++ b/src/idz/db/timeAttack.ts
@@ -0,0 +1,90 @@
+import { Client } from "pg";
+import * as sql from "sql-bricks";
+
+import { _findProfile } from "./_util";
+import { ExtId } from "../model/base";
+import { Profile } from "../model/profile";
+import { TimeAttackScore } from "../model/timeAttack";
+import { TimeAttackRepository } from "../repo";
+import { generateId } from "../../db";
+
+export class SqlTimeAttackRepository implements TimeAttackRepository {
+  constructor(private readonly _conn: Client) {}
+
+  async loadAll(extId: ExtId<Profile>): Promise<TimeAttackScore[]> {
+    const loadSql = sql
+      .select("ta.*")
+      .from("idz.time_attack ta")
+      .join("idz.profile p", { "ta.profile_id": "p.id" })
+      .where("p.ext_id", extId)
+      .toParams();
+
+    const { rows } = await this._conn.query(loadSql);
+
+    return rows.map(row => ({
+      routeNo: row.route_no,
+      timestamp: new Date(row.timestamp),
+      flags: row.flags,
+      totalTime: row.total_time,
+      sectionTimes: row.section_times,
+      grade: row.grade,
+    }));
+  }
+
+  async save(extId: ExtId<Profile>, score: TimeAttackScore): Promise<void> {
+    const profileId = await _findProfile(this._conn, extId);
+
+    const logSql = sql
+      .insert("idz.ta_result", {
+        id: generateId(),
+        profile_id: profileId,
+        route_no: score.routeNo,
+        total_time: score.totalTime,
+        section_times: score.sectionTimes,
+        flags: score.flags,
+        grade: score.grade,
+      })
+      .toParams();
+
+    await this._conn.query(logSql);
+
+    const existSql = sql
+      .select("ta.total_time")
+      .from("idz.ta_best ta")
+      .where("ta.profile_id", profileId)
+      .where("ta.route_no", score.routeNo)
+      .toParams();
+
+    const { rows } = await this._conn.query(existSql);
+    const row = rows[0];
+
+    if (row === undefined) {
+      const insertSql = sql
+        .insert("idz.ta_best", {
+          id: generateId(),
+          profile_id: profileId,
+          route_no: score.routeNo,
+          total_time: score.totalTime,
+          section_times: score.sectionTimes,
+          flags: score.flags,
+          grade: score.grade,
+        })
+        .toParams();
+
+      await this._conn.query(insertSql);
+    } else if (row.total_time > score.totalTime) {
+      const updateSql = sql
+        .update("idz.ta_best", {
+          total_time: score.totalTime,
+          section_times: score.sectionTimes,
+          flags: score.flags,
+          grade: score.grade,
+        })
+        .where("profile_id", profileId)
+        .where("route_no", score.routeNo)
+        .toParams();
+
+      await this._conn.query(updateSql);
+    }
+  }
+}
diff --git a/src/idz/decoder/saveTimeAttack.ts b/src/idz/decoder/saveTimeAttack.ts
index 8916433..ce54cab 100644
--- a/src/idz/decoder/saveTimeAttack.ts
+++ b/src/idz/decoder/saveTimeAttack.ts
@@ -1,5 +1,5 @@
 import { RequestCode } from "./_defs";
-import { ExtId } from "../model/base";
+import { ExtId, RouteNo } from "../model/base";
 import { Profile } from "../model/profile";
 import { SaveTimeAttackRequest } from "../request/saveTimeAttack";
 
@@ -12,14 +12,14 @@ export function saveTimeAttack(buf: Buffer): SaveTimeAttackRequest {
     profileId: buf.readUInt32LE(0x0004) as ExtId<Profile>,
     dayNight: buf.readUInt8(0x0054) & 1,
     payload: {
-      courseId: buf.readUInt8(0x0054) >> 1,
-      timestamp: new Date(buf.readUInt32LE(0x0058) * 1000).toISOString(), //hck
+      routeNo: (buf.readUInt8(0x0054) >> 1) as RouteNo,
+      timestamp: new Date(buf.readUInt32LE(0x0058) * 1000),
       flags: buf.readUInt8(0x005c),
-      totalMsec: buf.readUInt32LE(0x0018),
-      stageMsec: [
-        buf.readUInt32LE(0x0024),
-        buf.readUInt32LE(0x0028),
-        buf.readUInt32LE(0x002c),
+      totalTime: buf.readUInt32LE(0x0018) / 1000,
+      sectionTimes: [
+        buf.readUInt32LE(0x0024) / 1000,
+        buf.readUInt32LE(0x0028) / 1000,
+        buf.readUInt32LE(0x002c) / 1000,
       ],
       grade: buf.readUInt8(0x0062),
     },
diff --git a/src/idz/encoder/loadProfile2.ts b/src/idz/encoder/loadProfile2.ts
index cf196f9..0054f82 100644
--- a/src/idz/encoder/loadProfile2.ts
+++ b/src/idz/encoder/loadProfile2.ts
@@ -17,23 +17,23 @@ export function loadProfile2(res: LoadProfileResponse2) {
   buf.fill(4, 0x0680, 0x06a0);
 
   for (const score of res.timeAttack) {
-    const { courseId } = score;
+    const { routeNo } = score;
 
     buf.writeUInt32LE(
       (new Date(score.timestamp).getTime() / 1000) | 0, // Date ctor hack
-      0x00e4 + courseId * 4
+      0x00e4 + routeNo * 4
     );
 
-    buf.writeUInt16LE(0, 0x0560 + 2 * courseId); // ???
-    buf.writeUInt16LE(0xffff, 0x0164 + 2 * courseId); // National rank
-    buf.writeUInt32LE(score.totalMsec, 0x04e0 + 4 * courseId);
-    buf.writeUInt8(score.flags, 0x05a0 + courseId);
-    buf.writeUInt8(score.grade, 0x0680 + courseId);
+    buf.writeUInt16LE(0, 0x0560 + 2 * routeNo); // ???
+    buf.writeUInt16LE(0xffff, 0x0164 + 2 * routeNo); // National rank
+    buf.writeUInt32LE((score.totalTime * 1000) | 0, 0x04e0 + 4 * routeNo);
+    buf.writeUInt8(score.flags, 0x05a0 + routeNo);
+    buf.writeUInt8(score.grade, 0x0680 + routeNo);
 
     for (let i = 0; i < 3; i++) {
       buf.writeUInt16LE(
-        score.stageMsec[i] >> 2,
-        0x05c0 + 6 * courseId + 2 * i
+        (score.sectionTimes[i] * 1000) >> 2,
+        0x05c0 + 6 * routeNo + 2 * i
       );
     }
   }
diff --git a/src/idz/handler/saveTimeAttack.ts b/src/idz/handler/saveTimeAttack.ts
index 62e3d8f..7d32678 100644
--- a/src/idz/handler/saveTimeAttack.ts
+++ b/src/idz/handler/saveTimeAttack.ts
@@ -6,15 +6,7 @@ export async function saveTimeAttack(
   w: Repositories,
   req: SaveTimeAttackRequest
 ): Promise<SaveTimeAttackResponse> {
-  if (req.payload.totalMsec > 0) {
-    const existing = await w
-      .timeAttack()
-      .load(req.profileId, req.payload.courseId);
-
-    if (existing === undefined || existing.totalMsec > req.payload.totalMsec) {
-      await w.timeAttack().save(req.profileId, req.payload);
-    }
-  }
+  await w.timeAttack().save(req.profileId, req.payload);
 
   return {
     type: "save_time_attack_res",
diff --git a/src/idz/model/base.ts b/src/idz/model/base.ts
index 7452722..e19bffb 100644
--- a/src/idz/model/base.ts
+++ b/src/idz/model/base.ts
@@ -3,4 +3,5 @@
 
 export type BackgroundCode = number & { __brand: "backgroundCode" };
 export type ExtId<T> = number & { __extId: T };
+export type RouteNo = number & { __brand: "routeNo" };
 export type TitleCode = number & { __brand: "titleCode" };
diff --git a/src/idz/model/timeAttack.ts b/src/idz/model/timeAttack.ts
index 63ff2d0..9cd0793 100644
--- a/src/idz/model/timeAttack.ts
+++ b/src/idz/model/timeAttack.ts
@@ -1,8 +1,10 @@
+import { RouteNo } from "./base";
+
 export interface TimeAttackScore {
-  courseId: number;
-  timestamp: string; // hack
+  routeNo: RouteNo;
+  timestamp: Date;
   flags: number;
-  totalMsec: number;
-  stageMsec: number[];
+  totalTime: number;
+  sectionTimes: number[];
   grade: number;
 }
diff --git a/src/idz/repo.ts b/src/idz/repo.ts
index d0b8d4e..8456b22 100644
--- a/src/idz/repo.ts
+++ b/src/idz/repo.ts
@@ -64,11 +64,6 @@ export interface TimeAttackRepository {
     profileId: Model.ExtId<Model.Profile>
   ): Promise<Model.TimeAttackScore[]>;
 
-  load(
-    profileId: Model.ExtId<Model.Profile>,
-    courseId: number
-  ): Promise<Model.TimeAttackScore | undefined>;
-
   save(
     profileId: Model.ExtId<Model.Profile>,
     score: Model.TimeAttackScore