Pedzisa mutsara unotevera: Aitken akakwikwidza muIndianapolis 500 katatu. Akatanga nhangemutange yacho kaviri, muna 1911 uye
Muna 1916. Akatungamirira kutenderera kwokutanga kwomujaho wokutanga (1911). Aitken akabata nzvimbo yepamusoro muna 1916, asi akapedzisira ave panzvimbo yechi15 (kupedza kwake kwakanakisisa) gore iroro. Muna 1915 Indianapolis 500, Aitken akatyaira rubatsiro kune vatyairi vaviri, Gil Anderson naEarl Cooper (vakazopedza 3rd ne4th).