974 runs of the custom Super Mario Bros Time Trial level collected at Gamescom 2013.
There was a 3 second penalty for dying which explains all the frozen Marios. Also note that enemies and objects may not appear synced to the players — that is due to the way Mari0 (and the original SMB) works.
Best time (blue Mario): 41.32 seconds
Created using a modified version of Mari0: http://stabyourself.net/mari0/
Music is Super Mario Bros. 2 Overworld Theme.