Man o' War all-time greats with an "almost unbelievably brilliant performance" before a crowd of 25,000. At odds of 1-20, he faced only one rival, the well-regarded colt Donnaconna. Man o' War led from the start and Kummer let him run freely at the top of the stretch, allowing Man o' War to draw away by 20 lengths. Although eased in the final furlong, Man o' War set a world record of 2:14, beating the previous standard set in England by over two seconds and beating Sir Barton's American record by over three seconds. This time stood as the American record until 1961
Man o' War was entered in the Miller Stakes on August 7. There was a then record crowd of 35,000, many of whom gathered in the saddling area where Man o' War was surrounded by twelve Pinkerton guards. His jockey for the race was Earl Sande, replacing an injured Kummer. As expected, Man o' War took the early lead and was unchallenged in a six-length victory. He had been tightly restrained, but even so his time of 1:56 3/5 for the distance of miles was just seconds off the track record. His connections had a brief scare when Man o' War exhibited signs