diff --git a/gatewayservice/gateway-service.js b/gatewayservice/gateway-service.js
index 8f83f89..4a51e19 100644
--- a/gatewayservice/gateway-service.js
+++ b/gatewayservice/gateway-service.js
@@ -44,10 +44,10 @@ app.post('/adduser', async (req, res) => {
   }
 });
 
-app.get('/questionsGame', async (req, res) => {
+app.post('/updateStats', async (req, res) => {
   try {
-    const response = await axios.get( qgServiceUrl+"/game");
-    // coger los usuarios y crear el game con preguntas y usuarios
+    const { players } = req.body;
+    const response = await axios.post( userServiceUrl+"/updateStatistics", {players});
     
     res.json(response.data);
   } catch (error) {
diff --git a/gatewayservice/postman/Gateway.postman_collection.json b/gatewayservice/postman/Gateway.postman_collection.json
index 5b031d9..470896d 100644
--- a/gatewayservice/postman/Gateway.postman_collection.json
+++ b/gatewayservice/postman/Gateway.postman_collection.json
@@ -33,6 +33,34 @@
 				}
 			},
 			"response": []
+		},
+		{
+			"name": "Update player stats",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"players\":[\r\n    {\r\n        \"uuid\":\"3c68688e-84e7-4d29-b7c7-09474d42b669\",\r\n        \"nCorrectAnswers\":12,\r\n        \"nWrongAnswers\":3,\r\n        \"totalScore\":500,\r\n        \"isWinner\":true\r\n    }\r\n    ]\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8000/updateStats",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8000",
+					"path": [
+						"updateStats"
+					]
+				}
+			},
+			"response": []
 		}
 	]
 }
\ No newline at end of file
diff --git a/users/userservice/UserController.js b/users/userservice/UserController.js
index 592dc54..3a7db29 100644
--- a/users/userservice/UserController.js
+++ b/users/userservice/UserController.js
@@ -1,4 +1,7 @@
 const User = require('./user-model')
+const validateRequiredFields = require('./util/ValidateAddUser');
+const bcrypt = require('bcrypt');
+const uuid = require('uuid');
 
 let UserController = {
     updateLastGame: async (req, res) => {
@@ -21,6 +24,54 @@ let UserController = {
     
         const nPlayers = players.length;
         res.json({ "message": `Last game updated for ${nPlayers} users.` });
+    },
+    addUser: async (req, res) => {
+        try {
+            validateRequiredFields(req, ['username', 'password']);
+    
+            const hashedPassword = await bcrypt.hash(req.body.password, 10);
+    
+            const id = uuid.v4();
+            console.log(id);
+            const newUser = new User({
+                uuid: id,
+                username: req.body.username,
+                password: hashedPassword,
+                nCorrectAnswers: 0,
+                nWrongAnswers: 0,
+                totalScore: 0,
+                nWins: 0
+            });
+    
+            await newUser.save();
+            res.json(newUser);
+        } catch (error) {
+            res.status(400).json({ error: error.message }); 
+        }
+    },
+    updateStatistics: async (req, res) => {
+        const { players } = req.body;
+        console.log(players);
+        for (const p of players) {
+            try {
+                const user = await User.findOne({ uuid: p.uuid });
+                console.log(user)
+                console.log(p)
+                if (user) {
+                    user.nCorrectAnswers = user.nCorrectAnswers + p.nCorrectAnswers;
+                    user.nWrongAnswers = user.nWrongAnswers + p.nWrongAnswers;
+                    user.totalScore = user.totalScore + p.totalScore;
+                    p.isWinner ? user.nWins++ : null;
+                    await user.save();
+                } else {
+                    console.error(`User with UUID ${p.uuid} not found.`);
+                }
+            } catch (error) {
+                console.error(`Error updating statistics for user with UUID ${p.uuid}: ${error.message}`);
+            }
+        }
+        const nPlayers = players.length;
+        res.json({ "message": `Statistics updated for ${nPlayers} users.` });
     }
     
 }
diff --git a/users/userservice/user-model.js b/users/userservice/user-model.js
index 9cd47a8..2128a15 100644
--- a/users/userservice/user-model.js
+++ b/users/userservice/user-model.js
@@ -21,12 +21,24 @@ const userSchema = new mongoose.Schema({
       type: String,
       required: false,
     },
-    
-    // many to one con group
-    // int preguntas acertadas
-    // int preguntas falladas
-    // int puntuacion
+    nCorrectAnswers: {
+      type: Number,
+      required: false,
+    },
+    nWrongAnswers: {
+      type: Number,
+      required: false,
+    },
+    totalScore: {
+      type: Number,
+      required: false,
+    },
+    nWins: {
+      type: Number,
+      required: false,
+    }
 
+    // uuid del group con group
 });
 
 const User = mongoose.model('User', userSchema);
diff --git a/users/userservice/user-service.js b/users/userservice/user-service.js
index 2df0861..14d5c86 100644
--- a/users/userservice/user-service.js
+++ b/users/userservice/user-service.js
@@ -1,10 +1,7 @@
 // user-service.js
 const express = require('express');
 const mongoose = require('mongoose');
-const bcrypt = require('bcrypt');
 const bodyParser = require('body-parser');
-const User = require('./user-model')
-const uuid = require('uuid');
 const UserController = require('./UserController');
 
 const app = express();
@@ -17,35 +14,6 @@ app.use(bodyParser.json());
 const mongoUri = process.env.MONGODB_URI || 'mongodb://localhost:27017/userdb';
 mongoose.connect(mongoUri);
 
-function validateRequiredFields(req, requiredFields) {
-    for (const field of requiredFields) {
-      if (!(field in req.body)) {
-        throw new Error(`Missing required field: ${field}`);
-      }
-    }
-}
-
-app.post('/adduser', async (req, res) => {
-    try {
-        validateRequiredFields(req, ['username', 'password']);
-
-        const hashedPassword = await bcrypt.hash(req.body.password, 10);
-
-        const id = uuid.v4();
-        console.log(id);
-        const newUser = new User({
-            uuid: id,
-            username: req.body.username,
-            password: hashedPassword,
-        });
-
-        await newUser.save();
-        res.json(newUser);
-    } catch (error) {
-        res.status(400).json({ error: error.message }); 
-    }});
-
-  
 /*
     FUNCIONES A HACER:
       1. Update User al finalizar una partida -> puntos, lastGame, preguntas acertadas/falladas
@@ -53,7 +21,10 @@ app.post('/adduser', async (req, res) => {
       3. Obtener estadisticas por usuario (puntos, partidas jugadas, preguntas acertadas/falladas)
       4. Checkear si existe usuario con username
 */
+
+app.post('/adduser',UserController.addUser);
 app.post('/updateLastGame', UserController.updateLastGame);
+app.post('/updateStatistics', UserController.updateStatistics);
 
 const server = app.listen(port, () => {
   console.log(`User Service listening at http://localhost:${port}`);
diff --git a/users/userservice/util/ValidateAddUser.js b/users/userservice/util/ValidateAddUser.js
new file mode 100644
index 0000000..b14fa1e
--- /dev/null
+++ b/users/userservice/util/ValidateAddUser.js
@@ -0,0 +1,9 @@
+function validateRequiredFields(req, requiredFields) {
+    for (const field of requiredFields) {
+      if (!(field in req.body)) {
+        throw new Error(`Missing required field: ${field}`);
+      }
+    }
+}
+
+module.exports = validateRequiredFields;
\ No newline at end of file