Michael Andretti bettered his father’s unofficial record...

Michael Andretti bettered his father’s unofficial record for the fastest lap on opening day of Indianapolis 500 practice.

Andretti’s top speed was 210.772 m.p.h., breaking the first-day mark of 210.329 set by his father, Mario Andretti, last year. Michael’s fastest lap on the first day a year ago was 210.133.