diff --git a/SystemKonkursow/4.2.1/angular/src/account/register/register.component.html b/SystemKonkursow/4.2.1/angular/src/account/register/register.component.html
index 4a3b89c..7663dd1 100644
--- a/SystemKonkursow/4.2.1/angular/src/account/register/register.component.html
+++ b/SystemKonkursow/4.2.1/angular/src/account/register/register.component.html
@@ -38,6 +38,32 @@
                 </div>
             </div>
 
+            <div class="form-group form-float">
+                <div class="form-line">
+                    <select class="form-control"
+                        [(ngModel)]="model.role"
+                        name="Role"
+                        required>
+                        <option *ngFor="let possibleRole of possibleRoles" [value]="possibleRole.value">
+                            {{possibleRole.viewValue}}
+                        </option>
+                    </select>
+                </div>
+            </div>
+
+            <div *ngIf="model.role === 'Participant'" class="form-group form-float">
+                <div class="form-line">
+                    <select class="form-control"
+                        [(ngModel)]="model.participantClass"
+                        name="ParticipantClass"
+                        required>
+                        <option *ngFor="let possibleClass of possibleClasses" [value]="possibleClass.value">
+                            {{possibleClass.viewValue}}
+                        </option>
+                    </select>
+                </div>
+            </div>
+
             <div class="form-actions">
                 <button [disabled]="saving" [routerLink]="['../login']" type="button" class="btn btn-default">{{l("Powrót")}}</button>
                 <button type="submit" class="btn btn-success" [disabled]="!registerForm.form.valid">{{l("Zarejestruj")}}</button>
diff --git a/SystemKonkursow/4.2.1/angular/src/account/register/register.component.ts b/SystemKonkursow/4.2.1/angular/src/account/register/register.component.ts
index 673b009..7ca57b7 100644
--- a/SystemKonkursow/4.2.1/angular/src/account/register/register.component.ts
+++ b/SystemKonkursow/4.2.1/angular/src/account/register/register.component.ts
@@ -1,4 +1,4 @@
-import { Component, Injector, ElementRef, AfterViewInit, ViewChild } from '@angular/core';
+import { Component, Injector, ElementRef, OnInit, AfterViewInit, ViewChild } from '@angular/core';
 import { Router } from '@angular/router';
 import { AccountServiceProxy, RegisterInput, RegisterOutput } from '@shared/service-proxies/service-proxies'
 import { AppComponentBase } from '@shared/app-component-base';
@@ -10,7 +10,7 @@ import { finalize } from 'rxjs/operators';
     templateUrl: './register.component.html',
     animations: [accountModuleAnimation()]
 })
-export class RegisterComponent extends AppComponentBase implements AfterViewInit {
+export class RegisterComponent extends AppComponentBase implements OnInit, AfterViewInit {
 
     @ViewChild('cardBody') cardBody: ElementRef;
 
@@ -18,6 +18,22 @@ export class RegisterComponent extends AppComponentBase implements AfterViewInit
 
     saving: boolean = false;
 
+    public possibleClasses = [
+        {value: 1, viewValue: 'Klasa 1'},
+        {value: 2, viewValue: 'Klasa 2'},
+        {value: 3, viewValue: 'Klasa 3'},
+        {value: 4, viewValue: 'Klasa 4'},
+        {value: 5, viewValue: 'Klasa 5'},
+        {value: 6, viewValue: 'Klasa 6'},
+        {value: 7, viewValue: 'Klasa 7'},
+        {value: 8, viewValue: 'Klasa 8'}
+    ];
+
+    public possibleRoles = [
+        {value: 'Participant', viewValue: 'Uczestnik'},
+        {value: 'Organizer', viewValue: 'Organizator'}
+    ];
+
     constructor(
         injector: Injector,
         private _accountService: AccountServiceProxy,
@@ -30,12 +46,22 @@ export class RegisterComponent extends AppComponentBase implements AfterViewInit
     ngAfterViewInit(): void {
         $(this.cardBody.nativeElement).find('input:first').focus();
     }
+    
+    ngOnInit(): void {
+        this.model.role = 'Participant';
+        this.model.participantClass = 1;
+    }
 
     back(): void {
         this._router.navigate(['/login']);
     }
 
     save(): void {
+        if (this.model.role === 'Organizer') {
+            this.model.participantClass = 0;
+        }
+
+        this.model.participantClass = +this.model.participantClass;
         this.saving = true;
         this._accountService.register(this.model)
             .pipe(finalize(() => { this.saving = false; }))
diff --git a/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts b/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
index b0d7c2e..0372399 100644
--- a/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
+++ b/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
@@ -1880,6 +1880,8 @@ export class RegisterInput implements IRegisterInput {
     userName: string;
     emailAddress: string;
     password: string;
+    role: string;
+    participantClass: number;
     captchaResponse: string | undefined;
 
     constructor(data?: IRegisterInput) {
@@ -1898,6 +1900,8 @@ export class RegisterInput implements IRegisterInput {
             this.userName = data["userName"];
             this.emailAddress = data["emailAddress"];
             this.password = data["password"];
+            this.role = data["role"];
+            this.participantClass = data["participantClass"];
             this.captchaResponse = data["captchaResponse"];
         }
     }
@@ -1916,6 +1920,8 @@ export class RegisterInput implements IRegisterInput {
         data["userName"] = this.userName;
         data["emailAddress"] = this.emailAddress;
         data["password"] = this.password;
+        data["role"] = this.role;
+        data["participantClass"] = this.participantClass;
         data["captchaResponse"] = this.captchaResponse;
         return data; 
     }
@@ -1934,6 +1940,8 @@ export interface IRegisterInput {
     userName: string;
     emailAddress: string;
     password: string;
+    role: string;
+    participantClass: number;
     captchaResponse: string | undefined;
 }
 
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/AccountAppService.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/AccountAppService.cs
index 50ff768..c9d2d92 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/AccountAppService.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/AccountAppService.cs
@@ -66,6 +66,8 @@ namespace SystemKonkursow.Authorization.Accounts
                 input.EmailAddress,
                 input.UserName,
                 input.Password,
+                input.Role,
+                input.ParticipantClass,
                 true // Assumed email address is always confirmed. Change this if you want to implement email confirmation.
             );
 
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/Dto/RegisterInput.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/Dto/RegisterInput.cs
index 49954fc..4c26dd4 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/Dto/RegisterInput.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Authorization/Accounts/Dto/RegisterInput.cs
@@ -31,6 +31,12 @@ namespace SystemKonkursow.Authorization.Accounts.Dto
         [DisableAuditing]
         public string Password { get; set; }
 
+        [Required]
+        public string Role { get; set; }
+
+        [Required]
+        public int ParticipantClass { get; set; }
+
         [DisableAuditing]
         public string CaptchaResponse { get; set; }
 
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Authorization/Users/UserRegistrationManager.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Authorization/Users/UserRegistrationManager.cs
index 252c6ab..00e6edf 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Authorization/Users/UserRegistrationManager.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Authorization/Users/UserRegistrationManager.cs
@@ -11,6 +11,8 @@ using Abp.Runtime.Session;
 using Abp.UI;
 using SystemKonkursow.Authorization.Roles;
 using SystemKonkursow.MultiTenancy;
+using SystemKonkursow.Domain;
+using Abp.Domain.Repositories;
 
 namespace SystemKonkursow.Authorization.Users
 {
@@ -22,22 +24,25 @@ namespace SystemKonkursow.Authorization.Users
         private readonly UserManager _userManager;
         private readonly RoleManager _roleManager;
         private readonly IPasswordHasher<User> _passwordHasher;
+        private readonly IRepository<Domain.Participant, int> _participantRepository;
 
         public UserRegistrationManager(
             TenantManager tenantManager,
             UserManager userManager,
             RoleManager roleManager,
-            IPasswordHasher<User> passwordHasher)
+            IPasswordHasher<User> passwordHasher,
+            IRepository<Domain.Participant, int> participantRepository)
         {
             _tenantManager = tenantManager;
             _userManager = userManager;
             _roleManager = roleManager;
             _passwordHasher = passwordHasher;
+            _participantRepository = participantRepository;
 
             AbpSession = NullAbpSession.Instance;
         }
 
-        public async Task<User> RegisterAsync(string name, string surname, string emailAddress, string userName, string plainPassword, bool isEmailConfirmed)
+        public async Task<User> RegisterAsync(string name, string surname, string emailAddress, string userName, string plainPassword, string role, int participantClass, bool isEmailConfirmed)
         {
             CheckForTenant();
 
@@ -56,7 +61,19 @@ namespace SystemKonkursow.Authorization.Users
             };
 
             user.SetNormalizedNames();
-           
+
+            if (role == "Participant")
+            {
+                var participantRole = _roleManager.Roles.IgnoreQueryFilters().FirstOrDefault(r => r.TenantId == tenant.Id && r.Name == StaticRoleNames.Host.Participant);
+                user.Roles.Add(new UserRole(tenant.Id, user.Id, participantRole.Id));
+            }
+
+            if (role == "Organizer")
+            {
+                var organizerRole = _roleManager.Roles.IgnoreQueryFilters().FirstOrDefault(r => r.TenantId == tenant.Id && r.Name == StaticRoleNames.Host.Organizer);
+                user.Roles.Add(new UserRole(tenant.Id, user.Id, organizerRole.Id));
+            }
+
             foreach (var defaultRole in await _roleManager.Roles.Where(r => r.IsDefault).ToListAsync())
             {
                 user.Roles.Add(new UserRole(tenant.Id, user.Id, defaultRole.Id));
@@ -65,6 +82,18 @@ namespace SystemKonkursow.Authorization.Users
             await _userManager.InitializeOptionsAsync(tenant.Id);
 
             CheckErrors(await _userManager.CreateAsync(user, plainPassword));
+
+            if (participantClass != 0)
+            {
+                var participant = new Participant
+                {
+                    UserId = user.Id,
+                    ParticipantClass = participantClass
+                };
+
+                _participantRepository.Insert(participant);
+            }
+
             await CurrentUnitOfWork.SaveChangesAsync();
 
             return user;
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/Participant.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/Participant.cs
new file mode 100644
index 0000000..e4186d6
--- /dev/null
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/Participant.cs
@@ -0,0 +1,17 @@
+using Abp.Domain.Entities;
+using System.ComponentModel.DataAnnotations.Schema;
+using SystemKonkursow.Authorization.Users;
+
+namespace SystemKonkursow.Domain
+{
+    [Table("Participants")]
+    public class Participant : Entity<int>
+    {
+        public long UserId { get; set; }
+
+        public int ParticipantClass { get; set; }
+
+        [ForeignKey(nameof(UserId))]
+        public virtual User User { get; set; }
+    }
+}
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/Seed/UserBuilder.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/Seed/UserBuilder.cs
index 7a97c47..37cc801 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/Seed/UserBuilder.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/Seed/UserBuilder.cs
@@ -3,11 +3,13 @@ using Abp.Authorization.Users;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Options;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using SystemKonkursow.Authorization;
 using SystemKonkursow.Authorization.Roles;
 using SystemKonkursow.Authorization.Users;
+using SystemKonkursow.Domain;
 
 namespace SystemKonkursow.EntityFrameworkCore.Seed
 {
@@ -30,14 +32,14 @@ namespace SystemKonkursow.EntityFrameworkCore.Seed
                 //list permissions
             });
 
-            CreateUser(new List<Role> { organizerRole }, "Jan", "Kowalski", "organizator", "organizator@example.com");
+            CreateUser(new List<Role> { organizerRole }, "Jan", "Kowalski", "organizator", "organizator@example.com", false);
 
             Role participantRole = CreateRole(StaticRoleNames.Host.Participant, new List<string> {
                 PermissionNames.Pages_Solve_Competition
                 //list permissions
             });
 
-            CreateUser(new List<Role> { participantRole }, "Jerzy", "Nowak", "uczestnik", "uczestnik@example.com");
+            CreateUser(new List<Role> { participantRole }, "Jerzy", "Nowak", "uczestnik", "uczestnik@example.com", true);
         }
 
         private Role CreateRole(string roleName, IList<string> permissionList)
@@ -63,8 +65,10 @@ namespace SystemKonkursow.EntityFrameworkCore.Seed
             return role;
         }
 
-        private void CreateUser(IEnumerable<Role> roles, string name, string surname, string userName, string emailAddress)
+        private void CreateUser(IEnumerable<Role> roles, string name, string surname, string userName, string emailAddress, bool isParticipant)
         {
+            Random rnd = new Random();
+
             var user = _context.Users.IgnoreQueryFilters()
                 .FirstOrDefault(u => u.TenantId == 1 && u.UserName == userName);
             if (null == user)
@@ -86,6 +90,18 @@ namespace SystemKonkursow.EntityFrameworkCore.Seed
                 _context.Users.Add(user);
                 _context.SaveChanges();
 
+                if (isParticipant)
+                {
+                    var participant = new Participant()
+                    {
+                        UserId = user.Id,
+                        ParticipantClass = rnd.Next(1, 9)
+                    };
+
+                    _context.Participants.Add(participant);
+                    _context.SaveChanges();
+                }
+
                 // Assign role to user
                 foreach (var role in roles)
                 {
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
index 5de643e..7a9d93e 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
@@ -16,6 +16,8 @@ namespace SystemKonkursow.EntityFrameworkCore
 
         }
 
+        public DbSet<Domain.Participant> Participants  { get; set; }
+
         public DbSet<Domain.CompetitionCategory> CompetitionCategories { get; set; }
 
         public DbSet<Domain.Category> Categories { get; set; }
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
index 20accc7..75d1d37 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
@@ -1081,6 +1081,23 @@ namespace SystemKonkursow.Migrations
                     b.ToTable("CompetitionCategories");
                 });
 
+            modelBuilder.Entity("SystemKonkursow.Domain.Participant", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+                    b.Property<int>("ParticipantClass");
+
+                    b.Property<long>("UserId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Participants");
+                });
+
             modelBuilder.Entity("SystemKonkursow.MultiTenancy.Tenant", b =>
                 {
                     b.Property<int>("Id")
@@ -1302,6 +1319,14 @@ namespace SystemKonkursow.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
+            modelBuilder.Entity("SystemKonkursow.Domain.Participant", b =>
+                {
+                    b.HasOne("SystemKonkursow.Authorization.Users.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
             modelBuilder.Entity("SystemKonkursow.MultiTenancy.Tenant", b =>
                 {
                     b.HasOne("SystemKonkursow.Authorization.Users.User", "CreatorUser")
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
index dcbd57e..68c6fa9 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
@@ -25,4 +25,7 @@
   <ItemGroup>
     <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Migrations\" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Web.Core/Controllers/TokenAuthController.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Web.Core/Controllers/TokenAuthController.cs
index 1700a17..c8ae909 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Web.Core/Controllers/TokenAuthController.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Web.Core/Controllers/TokenAuthController.cs
@@ -141,6 +141,8 @@ namespace SystemKonkursow.Controllers
                 externalUser.EmailAddress,
                 externalUser.EmailAddress,
                 Authorization.Users.User.CreateRandomPassword(),
+                "Organizer",
+                0,
                 true
             );