Lista de los campeones del Campeonato nacional de Estados Unidos de 1909: William Larned vence a William Clothier, 6–1, 6–2, 5–7, 1–6, 6–1 Hazel Hotchkiss Wightman vence a Maud Barger-Wallach, 6–0, 6–1
Fred Alexander / Harold Hackett vencen a Maurice McLoughlin / George Janes, 6–4, 6–4, 6–0 Hazel Hotchkiss Wightman / Edith Rotch vencen a Dorothy Green / Lois Moyes, 6–1, 6–1 Hazel Hotchkiss Wightman / Wallace F. Johnson vencen a Louise Hammond Raymond / Raymond Little, 6–2, 6–0