INDIANAPOLIS (AP) — Takuma Sato snatched a second Indianapolis 500 victory at empty Indianapolis Motor Speedway, where the Japanese racer held off Scott Dixon and ultimately won under caution. IndyCar officials declined to throw a red-flag after a massive crash by Spencer Pigot with just a handful of laps remaining. Pigot needed medical attention on the track, the crash scene was a massive debris field and there was no way the race could resume without a stoppage.  Dixon, the five-time IndyCar champion who had dominated the race, could only follow Sato across the finish line under yellow.