In 100 metres his personal best time is 9.94 seconds, although he has recorded 9.91 s, albeit with a doubtful wind reading of -2.3 m/s which is an unlikely weather condition for records. In any case his result ranks him second in Nigeria, behind Olusoji Fasuba, and fifth in Africa, behind Ferdinand Omanyala, Akani Simbine, Fasuba and Frankie Fredericks.[1] His personal best 200 metres time is 20.30 seconds, from 1990.
Ezinwa established a new World junior record in the 100-meter dash in 1990 (10.05), breaking Stanley Floyd's ten-year-old record (10.07). Ezinwa's record was not broken until 2003, when Darrel Brown ran a 10.01 100-meter dash.
He is the identical twin brother of Osmond Ezinwa. Both attended the Christian university Azusa Pacific University. Davidson Ezinwa tested positive for doping twice; for ephedrine in February 1996, and together with Osmond for hCG in 1999.[2]
