This doesn't seem to work anymore for FM4 or FM5. End of Life game. Just have to use the console to look at the leaderboards.
Anyway re FM4. Have you posted times on the leaderboard. Simple challenge to start.
Rivals - Open Time Attack. Just 10 races and you just have to do 1 lap (2 if you want a flying start).
Go on. Race ya!
Till then, race ya! Beating me in 1 race is easy if you don't crash. Beating me in the next 307 races will take you some time!