In 1907, Peter Pan won six of his nine starts with two seconds, one of which was in the spring in the Withers Stakes. As the prestigious U.S. Triple Crown of Thoroughbred Racing had not at that time been established, the 3-year-old Peter Pan was not entered in the Kentucky Derby or the Preakness Stakes. However, he won the then 1⅜ miles Belmont Stakes, a race that is now the third leg of the Triple Crown series. In winning the Belmont, he defeated Frank Gill who had beaten him in the Withers Stakes. In 1907, Peter Pan also won the important Brooklyn Derby, the Standard Stakes at Gravesend Race Track, as well as the Advance and the Tidal Stakes at Sheepshead Bay Race Track. Shortly after winning the Brighton Handicap he suffered a tendon injury and was retired to stallion duty at his owner's Castelton Stud. In a review of Peter Pan's win in the 1907 Brighton Handicap in front of 40,000 fans, the New York Telegraph was quoted as saying the horse "accomplished a task that completely overshadowed any previous 3-year-old performance in turf history."
