Baas was born on March 17, 2003, in Dirksland and has been playing at Ajax since 2018 after making a transfer from Excelsior's youth academy. The left-footed player made his debut in professional football during the match De Graafschap – Ajax U23 (2-2) on December 11, 2020. At the start of January 2023, he officially became part of the first team and has played ten matches so far.
20 second countdown #7 | Regeer 🆚 Baas | 'Seaweed is an animal?'
In 20 second countdown, two Ajax players compete against each other.The rules are simple. Each player has 20 seconds on the clock. If you have given an answer, the time of the opposite player is ticking. In episode seven we see Youri Regeer and Youri Baas in a special edition on Curaçao!