diff --git a/BeReadyBackend/DTO/Users/GetUserChallengeDto.cs b/BeReadyBackend/DTO/Users/GetUserChallengeDto.cs
index e7beb1e..102011b 100644
--- a/BeReadyBackend/DTO/Users/GetUserChallengeDto.cs
+++ b/BeReadyBackend/DTO/Users/GetUserChallengeDto.cs
@@ -5,4 +5,5 @@ public class GetUserChallengeDto
     public string? ChallengeTitle { get; set; }
     public string? ChallengeDescription { get; set; }
     public int ChallengeDuration { get; set; }
+    public DateOnly ChallengeStartDate { get; set; }
 }
\ No newline at end of file
diff --git a/BeReadyBackend/MappingProfiles/EntityToDtoMappings.cs b/BeReadyBackend/MappingProfiles/EntityToDtoMappings.cs
index 8796070..abc2f39 100644
--- a/BeReadyBackend/MappingProfiles/EntityToDtoMappings.cs
+++ b/BeReadyBackend/MappingProfiles/EntityToDtoMappings.cs
@@ -36,12 +36,14 @@ public class EntityToDtoMappings : Profile
 
         CreateMap<RandomChallenge, GetUserChallengeDto>()
             .ForMember(dest => dest.ChallengeTitle, opt => opt.MapFrom(src => src.Libelle))
-            .ForMember(dest => dest.ChallengeDuration, opt => opt.MapFrom(src => src.Duration));
+            .ForMember(dest => dest.ChallengeDuration, opt => opt.MapFrom(src => src.Duration))
+            .ForMember(dest => dest.ChallengeStartDate, opt => opt.MapFrom(src => DateOnly.FromDateTime(src.GeneratedAt!.Value)));
 
         CreateMap<Group, GetUserChallengeDto>()
             .ForMember(dest => dest.ChallengeTitle, opt => opt.MapFrom(src => src.Title))
             .ForMember(dest => dest.ChallengeDescription, opt => opt.MapFrom(src => src.Description))
-            .ForMember(dest => dest.ChallengeDuration, opt => opt.MapFrom(src => src.Duration));
+            .ForMember(dest => dest.ChallengeDuration, opt => opt.MapFrom(src => src.Duration))
+            .ForMember(dest => dest.ChallengeStartDate, opt => opt.MapFrom(src => DateOnly.FromDateTime(src.CreationDate)));
 
         CreateMap<UserFriend, GetFriendDto>()
             .ForMember(dest => dest.Username, opt => opt.MapFrom(src => src.Friend!.Username))