Answer
Kowalczyk-Tekieli's coach is Aleksander Wierietielny, a renowned figure in the world of biathlon. With an extensive coaching career spanning several decades, Wierietielny has played a pivotal role in shaping Kowalczyk-Tekieli's athletic success. His expertise and guidance have been instrumental in helping Kowalczyk-Tekieli achieve notable victories and establish herself as a formidable competitor in biathlon.