Rubuta ci gaba don wannan sakin layi - Kahanamoku ya cancanci shiga cikin tawagar wasan Olympics na Amurka a 1912. A gasar Olympics ta 1912 a Stockholm, ya lashe lambar zinare a tseren mita 100
, da kuma lambar azurfa tare da ƙungiyar Amurka ta biyu a cikin maza 4 × 200 mita relay.