A native of Simunul, Tawi-Tawi,[1] Gampong played for the National University (NU) NU Bulldogs volleyball team at the University Athletic Association of the Philippines (UAAP).
[2] At the start of UAAP Season 80, Gampong was a frequently part of the bench[2] until he was fielded as a starter in the game against the Ateneo Blue Eagles which also marked as the end of NU's losing streak against Ateneo since Season 76.
[3] Gampong played for Team Dasma Monarchs in the 2021 PNVF Champions League.
[4] Madzlan Gampong was signed in to play for the Sarawak Hornbill at 2022 Malaysia Volleyball League (MVL) Championships as one of the club's foreign players.
[5][6] He got recommended by fellow Filipino and signee Jayvee Sumagaysay since the club needed an outside hitter.