Czerwinski currently holds fourteen Guinness World Records in eating.

[5] Having participated in more than 90 eating competitions,[4] Czerwinski holds fourteen Guinness World Records in competitive eating, including that for eating a whole raw onion in 43.53 seconds,[6] seventeen bananas in 2 minutes, fifteen hamburgers in 10 minutes,[4] 750 millilitres of olive oil in 60 seconds,[4] and 17 Jaffa Cakes in sixty seconds.

For his performance, he ate 5 hard boiled eggs, 3 pieces of Canadian bacon, 2 bananas, and a bag of milk in 51 seconds.

[5] Czerwinski has successfully battled testicular cancer twice in the past, both times going into remission.

[11] In January 2019, Czerwinski stated that the testicular cancer returned and had his second testicle surgically removed, requiring him to undergo testosterone replacement therapy for the rest of his life.