During his 14 seasons at the Czechoslovak First League he made 336 appearances (214 without substitution). Švajlen was also known as penalty taker. He scored 11 league goals during his club career,[2] all penalties, including five in the 1964–65 Czechoslovak First League.[3] He additionally scored a penalty in a UEFA Cup match against Spartak Moscow in a 2–1 Košice win, although the aggregate score of 2–3 resulted in Spartak progressing in the tournament.[4]