Rain, sun, speed, a frightening crash – the first day of time trials for the 101st Indianapolis 500 had it all.

Marc Marquez's decision to change his front tire on the grid before the delayed start of the Qatar Grand Prix proved to be costlier than expected, he admits.As light rain changed the start time and the race distance twice, Marquez – who was the only rider besides Cal Crutchlow set...

The rain-delayed Pennsylvania 400 at Pocono is underway about 24 hours after its scheduled start. Monday's start time was pushed back yet again as damp conditions persisted, creating weepers on the track surface. NASCAR officials started prerace ceremonies at 11:50 a.m. ET and got underway around 12:15 p.m.There is still...

What is the best approach for dealing with rain delays?Wait a maximum number of hours, then postpone. 49.2% (1,087)Just try to squeeze in the minimum number of laps needed to make the race official and leave it at that. 26.6% (588)Postpone to the next day. 22.5% (497)Postpone to the following...