Kyle Larson competed in the Indianapolis 500 for the first time in his career on Sunday night but was not happy with his P18 finish. After the race, Larson spoke to NBC Sports about coming up short after making a couple of mistakes. “Proud to finish but pretty upset at myself,” Larson said. “If I could have executed a better race, you never know what could happen.” Larson began the race at P5 and had his ups and downs. With 70 laps to go, Larson was hit with a speeding penalty on pit road, causing him to be a lap down. But despite the penalty, Larson fought back and was the leader late in the …