diff --git a/back/volume/src/pong/entity/result.entity.ts b/back/volume/src/pong/entity/result.entity.ts
index 53232dc..863f2ff 100644
--- a/back/volume/src/pong/entity/result.entity.ts
+++ b/back/volume/src/pong/entity/result.entity.ts
@@ -13,6 +13,9 @@ export default class Result {
   @PrimaryGeneratedColumn()
     id: number
 
+  @Column()
+    ranked: boolean
+
   @ManyToMany(() => User, (player: User) => player.results, { cascade: true })
     players: Array<User | null> // TODO: change to User[] for final version
 
diff --git a/back/volume/src/pong/game/Game.ts b/back/volume/src/pong/game/Game.ts
index b3c3b99..2a63ad8 100644
--- a/back/volume/src/pong/game/Game.ts
+++ b/back/volume/src/pong/game/Game.ts
@@ -112,7 +112,7 @@ export class Game {
 
   async stop (): Promise<void> {
     if (this.timer !== null) {
-      await this.pongService.saveResult(this.players)
+      await this.pongService.saveResult(this.players, this.ranked)
       if (this.players.length !== 0) {
         this.gameStoppedCallback(this.players[0].name)
       }
diff --git a/back/volume/src/pong/pong.service.ts b/back/volume/src/pong/pong.service.ts
index 8845150..1ea8201 100644
--- a/back/volume/src/pong/pong.service.ts
+++ b/back/volume/src/pong/pong.service.ts
@@ -14,14 +14,17 @@ export class PongService {
     private readonly usersService: UsersService
   ) {}
 
-  async updatePlayer (i: number, result: Result): Promise<void> {
-    const player: User | null = result.players[i]
-    if (player == null) return
+  async updateStats (player: User, i: number, result: Result): Promise<void> {
     player.matchs++
     if (result.score[i] > result.score[Math.abs(i - 1)]) player.wins++
     else player.looses++
     player.winrate = (100 * player.wins) / player.matchs
     player.rank = (await this.usersService.getRank(player.ftId)) + 1
+  }
+  async updatePlayer (i: number, result: Result) {
+    const player: User | null = result.players[i]
+    if (player == null) return
+    if (result.ranked) this.updateStats(player, i, result)
     player.results.push(result)
     player.status = "online" 
     await this.usersService.save(player)
@@ -33,11 +36,12 @@ export class PongService {
     await this.usersService.save(player)
   }
 
-  async saveResult (players: Player[]): Promise<void> {
+  async saveResult (players: Player[], ranked: boolean): Promise<void> {
     const result = new Result()
     const ply = new Array<User | null>()
     ply.push(await this.usersService.findUserByName(players[0].name))
     ply.push(await this.usersService.findUserByName(players[1].name))
+    result.ranked = ranked;
     result.players = ply
     result.score = [players[0].score, players[1].score]
     await this.resultsRepository.save(result)
@@ -45,14 +49,15 @@ export class PongService {
     await this.updatePlayer(1, result)
   }
 
-  async getHistory (): Promise<Result[]> {
+  async getHistory (ranked: boolean): Promise<Result[]> {
     return await this.resultsRepository.find({
+      where: { ranked },
       order: { date: 'DESC' }
     })
   }
 
   async getHistoryById (ftId: number): Promise<Result[]> {
-    const results = await this.usersService.getResults(ftId)
+    const results = await this.usersService.getResultsById(ftId)
     return results.sort((a, b) => (a.date < b.date ? 1 : -1))
   }
 }
diff --git a/back/volume/src/users/entity/user.entity.ts b/back/volume/src/users/entity/user.entity.ts
index 9a4ffef..5b853ea 100644
--- a/back/volume/src/users/entity/user.entity.ts
+++ b/back/volume/src/users/entity/user.entity.ts
@@ -6,7 +6,6 @@ import {
   ManyToMany,
   JoinTable
 } from 'typeorm'
-import { randomUUID } from 'crypto'
 
 import Message from 'src/chat/entity/message.entity'
 import Channel from 'src/chat/entity/channel.entity'
@@ -23,7 +22,7 @@ export class User {
   @Column({ unique: true })
     ftId: number
 
-  @Column({ unique: true, default: randomUUID() })
+  @Column({ unique: true})
     socketKey: string
 
   @Column({ unique: true })
diff --git a/back/volume/src/users/users.controller.ts b/back/volume/src/users/users.controller.ts
index 897d37e..9762b9f 100644
--- a/back/volume/src/users/users.controller.ts
+++ b/back/volume/src/users/users.controller.ts
@@ -73,10 +73,10 @@ export class UsersController {
     return await this.usersService.getRank(id)
   }
 
-  @Get('history')
+  @Get('rankedHistory')
   @UseGuards(AuthenticatedGuard)
-  async getHistory (): Promise<Result[]> {
-    return await this.pongService.getHistory()
+  async getRankedHistory (): Promise<Result[]> {
+    return await this.pongService.getHistory(true)
   }
 
   @Get('history/:id')
@@ -169,6 +169,7 @@ export class UsersController {
     @Param('id', ParseIntPipe) ftId: number
   ): Promise<User | null> {
     const user = await this.usersService.findUser(ftId)
+    if (!user) throw new BadRequestException('User unknown.')
     user.socketKey = ''
     return user
   }
diff --git a/back/volume/src/users/users.service.ts b/back/volume/src/users/users.service.ts
index bdd69e7..80d90f0 100644
--- a/back/volume/src/users/users.service.ts
+++ b/back/volume/src/users/users.service.ts
@@ -1,173 +1,173 @@
-import { BadRequestException, Catch, Injectable } from '@nestjs/common'
-import { InjectRepository } from '@nestjs/typeorm'
-import { EntityNotFoundError, QueryFailedError, Repository } from 'typeorm'
-import { User } from './entity/user.entity'
-import { type UserDto } from './dto/user.dto'
-import { type Channel } from 'src/chat/entity/channel.entity'
-import type Result from 'src/pong/entity/result.entity'
-import { Cron } from '@nestjs/schedule'
+import { BadRequestException, Catch, Injectable } from "@nestjs/common";
+import { InjectRepository } from "@nestjs/typeorm";
+import { EntityNotFoundError, QueryFailedError, Repository } from "typeorm";
+import { User } from "./entity/user.entity";
+import { type UserDto } from "./dto/user.dto";
+import { type Channel } from "src/chat/entity/channel.entity";
+import type Result from "src/pong/entity/result.entity";
+import { Cron } from "@nestjs/schedule";
+import { randomUUID } from "crypto";
 
 @Injectable()
 @Catch(QueryFailedError, EntityNotFoundError)
 export class UsersService {
-  constructor (
+  constructor(
     @InjectRepository(User) private readonly usersRepository: Repository<User>
   ) {}
 
-  async save (user: User): Promise<void> {
-    await this.usersRepository.save(user)
+  async save(user: User): Promise<void> {
+    await this.usersRepository.save(user);
   }
 
-  async findUsers (): Promise<User[]> {
-    const users = await this.usersRepository.find({})
+  async findUsers(): Promise<User[]> {
+    const users = await this.usersRepository.find({});
     users.forEach((usr) => {
-      usr.socketKey = ''
-    })
-    return users
+      usr.socketKey = "";
+    });
+    return users;
   }
 
-  async findUserByName (username: string): Promise<User> {
+  async findUserByName(username: string): Promise<User> {
     const user = await this.usersRepository.findOne({
       where: { username },
-      relations: { results: true }
-    })
-    if (user == null) throw new BadRequestException('User not found.')
-    return user
+      relations: { results: true },
+    });
+    if (user == null) throw new BadRequestException("User not found.");
+    return user;
   }
 
-  @Cron('0 * * * * *')
-  async updateStatus (): Promise<void> {
-    const users = await this.usersRepository.find({})
+  @Cron("0 * * * * *")
+  async updateStatus(): Promise<void> {
+    const users = await this.usersRepository.find({});
     users.forEach((usr) => {
       if (Date.now() - usr.lastAccess > 60000) {
-        usr.status = 'offline'
+        usr.status = "offline";
         this.usersRepository.save(usr).catch((err) => {
-          console.log(err)
-        })
+          console.log(err);
+        });
       }
-    })
+    });
   }
 
-  async findUser (ftId: number): Promise<User> {
-    const user = await this.usersRepository.findOneBy({ ftId })
-    if (user == null) throw new BadRequestException('User not found.')
-    user.lastAccess = Date.now()
-    if (user.status === 'offline') user.status = 'online'
-    await this.usersRepository.save(user)
-    return user
+  async findUser(ftId: number): Promise<User | null> {
+    const user = await this.usersRepository.findOneBy({ ftId });
+    if (user == null) return null;
+    user.lastAccess = Date.now();
+    if (user.status === "offline") user.status = "online";
+    await this.usersRepository.save(user);
+    return user;
   }
 
-  async findOnlineUsers (): Promise<User[]> {
+  async findOnlineUsers(): Promise<User[]> {
     const users = await this.usersRepository.find({
-      where: { status: 'online' }
-    })
+      where: { status: "online" },
+    });
     users.forEach((usr) => {
-      usr.socketKey = ''
-    })
-    return users
+      usr.socketKey = "";
+    });
+    return users;
   }
 
-  async create (userData: UserDto): Promise<User | null> {
+  async create(userData: UserDto): Promise<User | null> {
     try {
-      const newUser = this.usersRepository.create(userData)
-      return await this.usersRepository.save(newUser)
+      const newUser = this.usersRepository.create(userData);
+      newUser.socketKey = randomUUID()
+      return await this.usersRepository.save(newUser);
     } catch (err) {
-      throw new BadRequestException('User already exists.')
+      throw new BadRequestException("User already exists.");
     }
   }
 
-  async findOnlineInChannel (channel: Channel): Promise<User[]> {
+  async findOnlineInChannel(channel: Channel): Promise<User[]> {
     return await this.usersRepository
-      .createQueryBuilder('user')
-      .where('user.channel = :chan', { chan: channel })
-      .andWhere('user.status := status)', { status: 'online' })
-      .getMany()
+      .createQueryBuilder("user")
+      .where("user.channel = :chan", { chan: channel })
+      .andWhere("user.status := status)", { status: "online" })
+      .getMany();
   }
 
-  async update (user: User, changes: UserDto): Promise<User | null> {
-    this.usersRepository.merge(user, changes)
-    return await this.usersRepository.save(user)
+  async update(user: User, changes: UserDto): Promise<User | null> {
+    this.usersRepository.merge(user, changes);
+    return await this.usersRepository.save(user);
   }
 
-  async addAvatar (ftId: number, filename: string): Promise<void> {
-    await this.usersRepository.update({ ftId }, { avatar: filename })
+  async addAvatar(ftId: number, filename: string): Promise<void> {
+    await this.usersRepository.update({ ftId }, { avatar: filename });
   }
 
-  async getFriends (ftId: number): Promise<User[]> {
+  async getFriends(ftId: number): Promise<User[]> {
     const user = await this.usersRepository.findOne({
       where: { ftId },
-      relations: { friends: true }
-    })
-    if (user == null) throw new BadRequestException('User not found.')
-    return user.friends
+      relations: { friends: true },
+    });
+    if (user == null) throw new BadRequestException("User not found.");
+    return user.friends;
   }
 
-  async getInvits (ftId: number): Promise<User[]> {
+  async getInvits(ftId: number): Promise<User[]> {
     const user = await this.usersRepository.findOne({
       where: { ftId },
       relations: {
-        followers: true
-      }
-    })
-    if (user == null) throw new BadRequestException('User not found.')
-    return user.followers
+        followers: true,
+      },
+    });
+    if (user == null) throw new BadRequestException("User not found.");
+    return user.followers;
   }
 
-  async getResults (ftId: number): Promise<Result[]> {
+  async getResultsById(ftId: number): Promise<Result[]> {
     const user = await this.usersRepository.findOne({
       where: { ftId },
-      relations: {
-        results: {
-          players: true
-        }
-      }
-    })
-    if (user == null) throw new BadRequestException('User not found.')
-    return user.results
+      relations: { results: { players: true } },
+    });
+    if (user == null) throw new BadRequestException("User not found.");
+    return user.results;
   }
 
-  async getLeaderboard (): Promise<User[]> {
-    return await this.usersRepository.find({
+  async getLeaderboard(): Promise<User[]> {
+    let leaderboard = await this.usersRepository.find({
       order: {
-        winrate: 'DESC'
-      }
-    })
+        winrate: "DESC",
+      },
+    });
+    return leaderboard.filter((user) => user.rank !== 0);
+
   }
 
-  async getRank (ftId: number): Promise<number> {
-    const leader = await this.getLeaderboard()
-    return leader.findIndex((user) => user.ftId === ftId)
+  async getRank(ftId: number): Promise<number> {
+    const leader = await this.getLeaderboard();
+    return leader.findIndex((user) => user.ftId === ftId);
   }
 
-  async invit (ftId: number, targetFtId: number): Promise<void> {
+  async invit(ftId: number, targetFtId: number): Promise<void> {
     const user: User | null = await this.usersRepository.findOne({
       where: { ftId },
       relations: {
         followers: true,
-        friends: true
-      }
-    })
-    if (user == null) throw new BadRequestException('User not found.')
+        friends: true,
+      },
+    });
+    if (user == null) throw new BadRequestException("User not found.");
     if (user.friends.findIndex((friend) => friend.ftId === targetFtId) !== -1) {
-      throw new BadRequestException('You are already friends.')
+      throw new BadRequestException("You are already friends.");
     }
     const target: User | null = await this.usersRepository.findOne({
       where: { ftId: targetFtId },
       relations: {
         followers: true,
-        friends: true
-      }
-    })
-    if (target == null) throw new BadRequestException('Target not found.')
+        friends: true,
+      },
+    });
+    if (target == null) throw new BadRequestException("Target not found.");
     const id = user.followers.findIndex(
       (follower) => follower.ftId === targetFtId
-    )
+    );
     if (id !== -1) {
-      user.friends.push(target)
-      if (user.ftId !== target.ftId) target.friends.push(user)
-      user.followers.slice(id, 1)
-      await this.usersRepository.save(user)
-    } else target.followers.push(user)
-    await this.usersRepository.save(target)
+      user.friends.push(target);
+      if (user.ftId !== target.ftId) target.friends.push(user);
+      user.followers.slice(id, 1);
+      await this.usersRepository.save(user);
+    } else target.followers.push(user);
+    await this.usersRepository.save(target);
   }
 }