diff --git a/backend/backend.Tests/Controllers/EventsControllerTests.cs b/backend/backend.Tests/Controllers/EventsControllerTests.cs
new file mode 100644
index 0000000..f653a39
--- /dev/null
+++ b/backend/backend.Tests/Controllers/EventsControllerTests.cs
@@ -0,0 +1,511 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using Moq;
+using FluentAssertions;
+using RacePlannerApi.Controllers;
+using RacePlannerApi.Data;
+using RacePlannerApi.DTOs;
+using RacePlannerApi.Models;
+using backend.Tests.Utilities;
+
+namespace backend.Tests.Controllers;
+
+public class EventsControllerTests : IDisposable
+{
+    private readonly RacePlannerDbContext _context;
+    private readonly EventsController _controller;
+
+    public EventsControllerTests()
+    {
+        var options = new DbContextOptionsBuilder<RacePlannerDbContext>()
+            .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+            .Options;
+
+        _context = new RacePlannerDbContext(options);
+        _controller = new EventsController(_context);
+    }
+
+    private void SetUserContext(Guid userId, string role = "Participant")
+    {
+        var claims = new List<Claim>
+        {
+            new Claim(ClaimTypes.NameIdentifier, userId.ToString()),
+            new Claim(ClaimTypes.Role, role)
+        };
+        var identity = new ClaimsIdentity(claims, "TestAuthType");
+        var principal = new ClaimsPrincipal(identity);
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = principal }
+        };
+    }
+
+    public void Dispose()
+    {
+        _context.Dispose();
+    }
+
+    #region Create Event - Positive Tests
+
+    [Fact]
+    public async Task CreateEvent_WithValidData_CreatesEvent()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+        await _context.SaveChangesAsync();
+        SetUserContext(organizer.Id, "Organizer");
+
+        var request = new CreateEventRequest
+        {
+            Name = "Test Marathon",
+            Description = "A test marathon event",
+            EventDate = DateTime.UtcNow.AddDays(30),
+            Location = "Test City",
+            Category = "Running",
+            Tags = new List<string> { "marathon", "running" },
+            MaxParticipants = 100
+        };
+
+        // Act
+        var result = await _controller.CreateEvent(request);
+
+        // Assert
+        var createdResult = result.Result.Should().BeOfType<CreatedAtActionResult>().Subject;
+        var response = createdResult.Value.Should().BeOfType<EventDto>().Subject;
+        response.Name.Should().Be(request.Name);
+        response.Status.Should().Be("Draft");
+        response.Organizer.Id.Should().Be(organizer.Id);
+    }
+
+    [Fact]
+    public async Task CreateEvent_SetsStatusToDraft()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+        await _context.SaveChangesAsync();
+        SetUserContext(organizer.Id, "Organizer");
+
+        var request = new CreateEventRequest
+        {
+            Name = "Test Event",
+            EventDate = DateTime.UtcNow.AddDays(10),
+            Location = "Test Location",
+            MaxParticipants = 50
+        };
+
+        // Act
+        var result = await _controller.CreateEvent(request);
+
+        // Assert
+        var createdResult = result.Result.Should().BeOfType<CreatedAtActionResult>().Subject;
+        var response = createdResult.Value.Should().BeOfType<EventDto>().Subject;
+        response.Status.Should().Be("Draft");
+    }
+
+    #endregion
+
+    #region Create Event - Negative Tests
+
+    [Fact(Skip = "Authorization attributes require integration tests with full ASP.NET Core pipeline")]
+    public async Task CreateEvent_WithoutOrganizerRole_ReturnsForbidden()
+    {
+        // Arrange
+        var participant = TestDataFactory.CreateUser(role: UserRole.Participant);
+        _context.Users.Add(participant);
+        await _context.SaveChangesAsync();
+        SetUserContext(participant.Id, "Participant");
+
+        var request = new CreateEventRequest
+        {
+            Name = "Test Event",
+            EventDate = DateTime.UtcNow.AddDays(10),
+            Location = "Test Location"
+        };
+
+        // Act
+        var result = await _controller.CreateEvent(request);
+
+        // Assert
+        result.Result.Should().BeOfType<ForbidResult>();
+    }
+
+    [Fact]
+    public async Task CreateEvent_WithUnauthenticatedUser_ReturnsUnauthorized()
+    {
+        // Arrange
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        var request = new CreateEventRequest
+        {
+            Name = "Test Event",
+            EventDate = DateTime.UtcNow.AddDays(10),
+            Location = "Test Location"
+        };
+
+        // Act
+        var result = await _controller.CreateEvent(request);
+
+        // Assert
+        result.Result.Should().BeOfType<UnauthorizedResult>();
+    }
+
+    #endregion
+
+    #region Get Events - Positive Tests
+
+    [Fact]
+    public async Task GetEvents_ReturnsPublishedEventsForAnonymous()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var publishedEvent = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Published);
+        var draftEvent = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Draft);
+        _context.Events.AddRange(publishedEvent, draftEvent);
+        await _context.SaveChangesAsync();
+
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        // Act
+        var result = await _controller.GetEvents();
+
+        // Assert
+        var okResult = result.Result.Should().BeOfType<OkObjectResult>().Subject;
+        var events = okResult.Value.Should().BeAssignableTo<IEnumerable<EventDto>>().Subject;
+        events.Should().HaveCount(1);
+        events.First().Status.Should().Be("Published");
+    }
+
+    [Fact]
+    public async Task GetEvents_WithCategoryFilter_ReturnsFilteredEvents()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var runningEvent = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Published);
+        runningEvent.Category = "Running";
+        var cyclingEvent = TestDataFactory.CreateEvent(name: "Cycling Event", organizerId: organizer.Id, status: EventStatus.Published);
+        cyclingEvent.Category = "Cycling";
+
+        _context.Events.AddRange(runningEvent, cyclingEvent);
+        await _context.SaveChangesAsync();
+
+        // Set anonymous context
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        var filter = new EventFilterRequest { Category = "Running" };
+
+        // Act
+        var result = await _controller.GetEvents(filter);
+
+        // Assert
+        var okResult = result.Result.Should().BeOfType<OkObjectResult>().Subject;
+        var events = okResult.Value.Should().BeAssignableTo<IEnumerable<EventDto>>().Subject;
+        events.Should().HaveCount(1);
+        events.First().Category.Should().Be("Running");
+    }
+
+    [Fact]
+    public async Task GetEvents_WithDateRangeFilter_ReturnsFilteredEvents()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var futureEvent = TestDataFactory.CreateEvent(
+            name: "Future Event",
+            eventDate: DateTime.UtcNow.AddDays(60),
+            organizerId: organizer.Id,
+            status: EventStatus.Published);
+        var pastEvent = TestDataFactory.CreateEvent(
+            name: "Past Event",
+            eventDate: DateTime.UtcNow.AddDays(-10),
+            organizerId: organizer.Id,
+            status: EventStatus.Published);
+
+        _context.Events.AddRange(futureEvent, pastEvent);
+        await _context.SaveChangesAsync();
+
+        // Set anonymous context
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        var filter = new EventFilterRequest
+        {
+            FromDate = DateTime.UtcNow.AddDays(1),
+            ToDate = DateTime.UtcNow.AddDays(100)
+        };
+
+        // Act
+        var result = await _controller.GetEvents(filter);
+
+        // Assert
+        var okResult = result.Result.Should().BeOfType<OkObjectResult>().Subject;
+        var events = okResult.Value.Should().BeAssignableTo<IEnumerable<EventDto>>().Subject;
+        events.Should().HaveCount(1);
+        events.First().Name.Should().Be("Future Event");
+    }
+
+    #endregion
+
+    #region Get Single Event - Positive Tests
+
+    [Fact]
+    public async Task GetEvent_ReturnsPublishedEvent()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var eventEntity = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Published);
+        _context.Events.Add(eventEntity);
+        await _context.SaveChangesAsync();
+
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        // Act
+        var result = await _controller.GetEvent(eventEntity.Id);
+
+        // Assert
+        var okResult = result.Result.Should().BeOfType<OkObjectResult>().Subject;
+        var response = okResult.Value.Should().BeOfType<EventDto>().Subject;
+        response.Id.Should().Be(eventEntity.Id);
+        response.Name.Should().Be(eventEntity.Name);
+    }
+
+    [Fact]
+    public async Task GetEvent_OrganizerCanViewOwnDraftEvent()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var draftEvent = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Draft);
+        _context.Events.Add(draftEvent);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(organizer.Id, "Organizer");
+
+        // Act
+        var result = await _controller.GetEvent(draftEvent.Id);
+
+        // Assert
+        result.Result.Should().BeOfType<OkObjectResult>();
+    }
+
+    #endregion
+
+    #region Get Single Event - Negative Tests
+
+    [Fact]
+    public async Task GetEvent_DraftEventNotVisibleToPublic()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var draftEvent = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Draft);
+        _context.Events.Add(draftEvent);
+        await _context.SaveChangesAsync();
+
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        // Act
+        var result = await _controller.GetEvent(draftEvent.Id);
+
+        // Assert
+        result.Result.Should().BeOfType<NotFoundResult>();
+    }
+
+    [Fact]
+    public async Task GetEvent_NonExistentEvent_ReturnsNotFound()
+    {
+        // Arrange
+        var nonExistentId = Guid.NewGuid();
+
+        _controller.ControllerContext = new ControllerContext
+        {
+            HttpContext = new DefaultHttpContext { User = new ClaimsPrincipal() }
+        };
+
+        // Act
+        var result = await _controller.GetEvent(nonExistentId);
+
+        // Assert
+        result.Result.Should().BeOfType<NotFoundResult>();
+    }
+
+    #endregion
+
+    #region Update Event - Positive Tests
+
+    [Fact]
+    public async Task UpdateEvent_WithValidData_UpdatesEvent()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var eventEntity = TestDataFactory.CreateEvent(organizerId: organizer.Id, status: EventStatus.Draft);
+        _context.Events.Add(eventEntity);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(organizer.Id, "Organizer");
+
+        var request = new UpdateEventRequest
+        {
+            Name = "Updated Event Name",
+            Description = "Updated description",
+            Status = EventStatus.Published
+        };
+
+        // Act
+        var result = await _controller.UpdateEvent(eventEntity.Id, request);
+
+        // Assert
+        var okResult = result.Result.Should().BeOfType<OkObjectResult>().Subject;
+        var response = okResult.Value.Should().BeOfType<EventDto>().Subject;
+        response.Name.Should().Be("Updated Event Name");
+        response.Status.Should().Be("Published");
+    }
+
+    #endregion
+
+    #region Update Event - Negative Tests
+
+    [Fact]
+    public async Task UpdateEvent_NonOrganizer_ReturnsForbidden()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        var otherUser = TestDataFactory.CreateUser(email: "other@example.com", role: UserRole.Organizer);
+        _context.Users.AddRange(organizer, otherUser);
+
+        var eventEntity = TestDataFactory.CreateEvent(organizerId: organizer.Id);
+        _context.Events.Add(eventEntity);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(otherUser.Id, "Organizer");
+
+        var request = new UpdateEventRequest { Name = "Hacked Name" };
+
+        // Act
+        var result = await _controller.UpdateEvent(eventEntity.Id, request);
+
+        // Assert
+        result.Result.Should().BeOfType<ForbidResult>();
+    }
+
+    [Fact]
+    public async Task UpdateEvent_NonExistentEvent_ReturnsNotFound()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(organizer.Id, "Organizer");
+
+        var request = new UpdateEventRequest { Name = "Updated Name" };
+
+        // Act
+        var result = await _controller.UpdateEvent(Guid.NewGuid(), request);
+
+        // Assert
+        result.Result.Should().BeOfType<NotFoundResult>();
+    }
+
+    #endregion
+
+    #region Delete Event - Positive Tests
+
+    [Fact]
+    public async Task DeleteEvent_OrganizerCanDeleteOwnEvent()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+
+        var eventEntity = TestDataFactory.CreateEvent(organizerId: organizer.Id);
+        _context.Events.Add(eventEntity);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(organizer.Id, "Organizer");
+
+        // Act
+        var result = await _controller.DeleteEvent(eventEntity.Id);
+
+        // Assert
+        result.Should().BeOfType<NoContentResult>();
+
+        var deletedEvent = await _context.Events.FindAsync(eventEntity.Id);
+        deletedEvent.Should().BeNull();
+    }
+
+    #endregion
+
+    #region Delete Event - Negative Tests
+
+    [Fact]
+    public async Task DeleteEvent_NonOrganizer_ReturnsForbidden()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        var otherUser = TestDataFactory.CreateUser(email: "other@example.com", role: UserRole.Organizer);
+        _context.Users.AddRange(organizer, otherUser);
+
+        var eventEntity = TestDataFactory.CreateEvent(organizerId: organizer.Id);
+        _context.Events.Add(eventEntity);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(otherUser.Id, "Organizer");
+
+        // Act
+        var result = await _controller.DeleteEvent(eventEntity.Id);
+
+        // Assert
+        result.Should().BeOfType<ForbidResult>();
+    }
+
+    [Fact]
+    public async Task DeleteEvent_NonExistentEvent_ReturnsNotFound()
+    {
+        // Arrange
+        var organizer = TestDataFactory.CreateUser(role: UserRole.Organizer);
+        _context.Users.Add(organizer);
+        await _context.SaveChangesAsync();
+
+        SetUserContext(organizer.Id, "Organizer");
+
+        // Act
+        var result = await _controller.DeleteEvent(Guid.NewGuid());
+
+        // Assert
+        result.Should().BeOfType<NotFoundResult>();
+    }
+
+    #endregion
+}