Mezue ahịrịokwu na-esonụ: Guy ghọrọ onye a ma ama n'ụwa nile mgbe o nwetara ihe nrite ọlaedo abụọ n'asọmpi Iko Mba Ụwa n'ọsọ 200 mita na 4×200 mita n'asọmpi Iko Mba Ụwa nke 2015. Ọ bụ onye na-egwu mmiri nke ọma, na 2016, o meriri ọlaọcha na 4x200m freestyle relay na
4x100m medley relay na Rio Olympics, na-emecha nke anọ na ihe omume 200 mita freestyle. O nyeere aka ịgbachitere ụmụ nwoke 4 x 200 mita freestyle relay ụwa aha na 2017, na-egwu mmiri na urukurubụba ụkwụ na-enyere Great Britain na ọlaedo na 4 x 100 mita medley relay na 2019 World Aquatics n'asọmpi. Guy bụ onye meriri n'egwuregwu Commonwealth nakwa onye meriri ugboro asaa n'asọmpi European n'asọmpi dị iche iche.