Nyorai kupfuurira kweiyi ndima - O'Day akamhan'arira mu 10 World Series: 1903
, 1905, 1907, 1908, 1910, 1916, 1918, 1920, 1923 uye 1926. Bill Klem chete, uyo O'Day akakurudzira kuti ashandiswe, ndiye akashanda zvakawanda. O'Day's World Series kuoneka kunosanganisira mana ekutanga mashanu akatamba. Mumitambo yake mitatu yokutanga yeWorld Series, gadziriro yevatongi vaviri yakashandiswa, nevaviri vari kuchinjana pakati pekushanda kweimba yepamba uye mabhesi. Mumitambo yake mitatu yakatevera, vatongi vana vakagoverwa, asi vakashanda mumapoka evarume vaviri avo vakatonga mitambo yakashandurwa; kwete kusvikira 1918 Series vose vana vakashanda mutambo wose. Munguva ye1920 World Series, O'Day ndiye akanga ari mutongi wepasi apo Bill Wambsganss akaita mutambo wechitatu chete usina kubatsirwa munhoroondo ye Series. Kunyange zvazvo zvakanga zvisingazivikanwi panguva iyoyo, O'Day akava mutongi akwegura zvikuru munhau pazera remakore 65, mwedzi 9 paakatanga mwaka wa1925; kwaitendwa kwenguva refu kuti Emslie akanga achiri kubata chiratidzo, achinge apedza basa pamagumo emwaka wa1924 pazera remakore 65, mwedzi 8. Pakupera kwebasa rake, O'Day's yakazara yemitambo 3,986 semutongi akamugadza kumashure kweTommy Connolly (4,337) naEmslie (4,228) munhoroondo yeligi huru.