Outside of the actual Mt Diablo Challenge each October, the climb is one of the more popular uploaded to Strava, with over 11000 attempts recorded as of mid 2014. The top 10 times listed there are all from the Tour of California, which has used Mt Diablo as a stage several times. The fastest time (41:39) as of July 2014 is held by professional Curaçaoan cyclist Marc de Maar set in May 2013.