Corum wins without leading a single lap in his racing career at Indianapolis, the first driver to do so. 1925: The race is won by Ralph DePalma's nephew, and former riding mechanic, Peter DePaolo. Depaolo was the first to average over on his way to victory. The race was part of the 1925 World Manufacturers' Championship. 1926: Twenty-three-year-old racing sensation Frank Lockhart wins the race as a rookie. He is the first winner born in the 20th century. Rain hampered the race, and it was called at the 400-mile mark. The race was part of the 1926 World Manufacturers' Championship. 1927: Rookie George Souders wins by eight laps, the largest margin since 1913; consecutive rookie winners occurs for the second time. Many racing pundits view Souders' race as the most surprising, 'longest-shot' 500-Mile Race win in history until 1987. Souders becomes the first driver to win the full-500-mile race solo, with neither any relief help, nor a riding mechanic. The race was part of the 1927 World Manufacturers' Championship. 1928: Jimmy Gleason has a good lead when he stops for water for the radiator on lap 195. A crew member misses the radiator and douses the car's magneto. Gleason is out and Louis Meyer wins. The race was part of the 1928 World Manufacturers' Championship. 1929: Louis Meyer stalls on his final pitstop, handing the race to Ray Keech, who is killed in a racing crash just two weeks after the '500'. 1930–1939 1930: Billy Arnold takes the lead on lap three and is never challenged again. Arnold's 198 laps led in a race has never been bettered. 1931: 1930 winner Billy Arnold is 5 laps ahead on lap 162 when his rear axle breaks and Arnold crashes. His wheel flies over a fence and hits and kills 12-year-old Wilbur C. Brink, who is sitting in his garden on Georgetown Road. Arnold and his mechanic are injured. Louis Schneider leads the remaining laps. 1932: Fred Frame wins the race from 27th starting position, and is the eighth different leader of the race, a record at the time. 1933: The largest field to date with 42 starters. Louis Meyer wins after one of the most violent races ever, with five drivers or mechanics killed and several others seriously injured. The standard Victory Banquet after the race is not held, and the predominance of safety as chief concern for race organizers begins