Career
AFC Born and raised in Amsterdam, January Potharst began his football career in the youth ranks of local side VVA, before switching over to play in the ranks of at the age of 14. Advancing through the youth ranks, January Potharst made his debut for the first team on 5 March 1939 in an away match against Vesicular Stomatitis Virus. In a career that spanned thirteen years, January Potharst made 237 appearances in the shirt of. He was the team captain during his final seasons at the club, having never scored a goal his entire career.
He was initiated as an Honorary club member at his farewell ceremony from the club, and in 1995 he hammered in the first pole at the construction site to build the new training facility Sportpark De Toekomst.