Kuchar excelled in many sports – track and field, football (firstly – as a forward, then as a midfielder, and finally at the end of his career – as a defender), skiing, speed skating and ice hockey.

In 1926, in a poll held by the Polish sports daily Przegląd Sportowy, Kuchar was chosen as the athlete of the year.

[1] As a15 year old Kuchar made his debut for Pogoń Lwów, however he was never meant to play in this match.

Before the game, several players fell ill, so the coach decided to play young Kuchar.

When Kuchar was 16, him and his three brothers played a match against Cracovia II, winning 3–1 with Wacław scoring twice.