Mezue ahịrịokwu na-esonụ: O'Neil malitere egwuregwu nkwarụ mgbe ọ nọ n'ogige egwuregwu na New York City mgbe ọ dị afọ iri na abụọ. Ọ bu ụzọ nọchite anya Ireland na nnukwu asọmpi mba ụwa na Birmingham n'oge asọmpi egwuregwu ụwa IPC nke 1998, na-enweta ọla edo na F51 ụmụ nwanyị na-atụba diski. O'Neil gbara asọmpi na Summer Paralympic Games atọ n'oge ọrụ ya, na-amalite na 2000 Summer Paralympics na Sydney. Na mbido ọ bụ ọkachamara na diski, ihe ngosi ahụ gara n'ihu na ọrụ ya ka ọ banye n'ime ihe omume klọb. Ọ bụ ezie na ọ naghị asọmpi na Atens, O'Neill nọ na ndị otu Ireland maka egwuregwu 2008 na Beijing na
Egwuregwu 2012 na London. Naanị ebe ọ na-agba n'egwuregwu Paralympic bịara na London, ebe ọ meriri ọlaọcha na &lt;a href="Athletics%20at%20the%202012%20Summer%20Paralympics%20%E2%80%93%20Women%27s%20discus%20throw"&gt;discus throw - F51/52/53&lt;/a&gt;.