What is the minimum number of laps needed to officially win the Indy 500 if the race is stopped?

To officially win the Indy 500, a driver must complete a minimum of 101 laps. This is because the race is traditionally 200 laps, but to be considered official, at least half of the laps must be completed. In the event of a stoppage, if the race reaches 101 laps, it can be declared official and a winner can be determined based on the current standings.