Kọ itẹsiwaju fun paragirafi yii - Nikishyn gba ami ẹyẹ idẹ ninu idije ẹṣin ọkunrin kọọkan ni 2016 European Fencing Championships ni Toruń, Poland, ati ami ẹyẹ idẹ ninu idije ẹṣin ọkunrin kọọkan ni 2018 European Fencing Championships
ìlú Novi Sad, lórílẹ̀-èdè Serbia.