diff --git a/src/main/java/org/kickerelo/kickerelo/config/SecurityConfiguration.java b/src/main/java/org/kickerelo/kickerelo/config/SecurityConfiguration.java
index 226f435..d450b5f 100644
--- a/src/main/java/org/kickerelo/kickerelo/config/SecurityConfiguration.java
+++ b/src/main/java/org/kickerelo/kickerelo/config/SecurityConfiguration.java
@@ -1,20 +1,29 @@
 package org.kickerelo.kickerelo.config;
 
+import org.kickerelo.kickerelo.data.AuthentikUser;
+import org.kickerelo.kickerelo.repository.AuthentikUserRepository;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Profile;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-
 import org.springframework.security.oauth2.client.*;
 import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
 import org.springframework.security.oauth2.client.web.DefaultOAuth2AuthorizedClientManager;
 import org.springframework.security.oauth2.client.web.OAuth2AuthorizedClientRepository;
+import org.springframework.security.oauth2.core.user.OAuth2User;
 import org.springframework.security.web.SecurityFilterChain;
 
 @Profile("prod")
 @Configuration
 class SecurityConfiguration {
+
+    AuthentikUserRepository userRepository;
+
+    public SecurityConfiguration(AuthentikUserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
     @Bean
     public OAuth2AuthorizedClientManager authorizedClientManager(
             ClientRegistrationRepository clientRegistrationRepository,
@@ -37,10 +46,20 @@ class SecurityConfiguration {
 
     @Bean
     public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
-        http.authorizeHttpRequests(auth -> auth
+        http
+                .authorizeHttpRequests(auth -> auth
                         .requestMatchers("/app/admin/**", "/app/admin", "/app/app/admin/**", "/app/app/admin").hasAuthority("Kicker Admin")
                         .anyRequest().permitAll())
-                .oauth2Login(org.springframework.security.config.Customizer.withDefaults())
+                .oauth2Login(oauth -> oauth
+                        .successHandler((request, response, authentication) -> {
+                            String id = ((OAuth2User) authentication.getPrincipal()).getAttribute("sub");
+                            if (!userRepository.existsById(id)) {
+                                String name = ((OAuth2User) authentication.getPrincipal()).getAttribute("name");
+                                AuthentikUser user = new AuthentikUser(id, name);
+                                userRepository.save(user);
+                            }
+                            response.sendRedirect("/");
+                        }))
                 .logout(logout -> logout.logoutSuccessUrl("/"))
                 .csrf(csrf -> csrf.disable());
 
diff --git a/src/main/java/org/kickerelo/kickerelo/data/AuthentikUser.java b/src/main/java/org/kickerelo/kickerelo/data/AuthentikUser.java
new file mode 100644
index 0000000..0906af8
--- /dev/null
+++ b/src/main/java/org/kickerelo/kickerelo/data/AuthentikUser.java
@@ -0,0 +1,46 @@
+package org.kickerelo.kickerelo.data;
+
+import jakarta.persistence.*;
+
+import javax.annotation.Nullable;
+import java.util.Optional;
+
+@Entity
+@Table(name = "AUTHENTIK_USER")
+public class AuthentikUser {
+    @Id
+    @Column(name = "ID", unique = true, nullable = false)
+    private String id;
+
+    @OneToOne(mappedBy = "authentikUser", optional = true)
+    private Spieler spieler;
+
+    @Column(name = "NAME", nullable = false)
+    private String name;
+
+    public AuthentikUser() {
+    }
+
+    public AuthentikUser(String id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Optional<Spieler> getSpieler() {
+        return Optional.ofNullable(spieler);
+    }
+
+    public void setSpieler(@Nullable Spieler spieler) {
+        this.spieler = spieler;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof AuthentikUser)) return false;
+        return this.id == ((AuthentikUser) o).id;
+    }
+}
diff --git a/src/main/java/org/kickerelo/kickerelo/data/Spieler.java b/src/main/java/org/kickerelo/kickerelo/data/Spieler.java
index db2843e..9f62507 100644
--- a/src/main/java/org/kickerelo/kickerelo/data/Spieler.java
+++ b/src/main/java/org/kickerelo/kickerelo/data/Spieler.java
@@ -2,6 +2,9 @@ package org.kickerelo.kickerelo.data;
 
 import jakarta.persistence.*;
 
+import javax.annotation.Nullable;
+import java.util.Optional;
+
 @Entity
 @Table(name = "SPIELER")
 public class Spieler {
@@ -22,6 +25,10 @@ public class Spieler {
     @Column(name = "ELO_ALT")
     private float elo_alt;
 
+    @OneToOne(optional = true)
+    @JoinColumn(name = "AUTHENTIK_USER", referencedColumnName = "ID", unique = true)
+    private AuthentikUser authentikUser;
+
     public Spieler() {
     }
 
@@ -65,6 +72,14 @@ public class Spieler {
         this.elo_alt = elo_alt;
     }
 
+    public Optional<AuthentikUser> getAuthentikUser() {
+        return Optional.ofNullable(authentikUser);
+    }
+
+    public void setAuthentikUser(@Nullable AuthentikUser authentikUser) {
+        this.authentikUser = authentikUser;
+    }
+
     @Override
     public String toString() {
         return this.name;
diff --git a/src/main/java/org/kickerelo/kickerelo/repository/AuthentikUserRepository.java b/src/main/java/org/kickerelo/kickerelo/repository/AuthentikUserRepository.java
new file mode 100644
index 0000000..972f3af
--- /dev/null
+++ b/src/main/java/org/kickerelo/kickerelo/repository/AuthentikUserRepository.java
@@ -0,0 +1,9 @@
+package org.kickerelo.kickerelo.repository;
+
+import org.kickerelo.kickerelo.data.AuthentikUser;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface AuthentikUserRepository extends JpaRepository<AuthentikUser, String> {
+}