[5] Approximately 110,000 spectators were reported to have turned out to see 180 runners compete in the New Jersey Athletic Club Marathon.
[6] With "scorching heat" noted to have affected many of the athletes, Clark recorded a time of 3:22:07 that was good enough for third place behind James Crowley of the Irish American Athletic Club and Harry Jensen of the Pastime Athletic Club.
[6] On October 12, 1909, Clark competed in a fifteen-mile run described as the "feature event" Columbus Day games organized by the Emerald Athletic Club in Westchester, New York.
[7] He placed third behind Jensen and F.P Devlin of the Mott Haven Athletic Club.
[7] On November 27, 1909, Clark finished seventh in the third edition of the Yonkers Marathon (3:01:21).