Note that this have been migrated over to my GH site
2018:
Google CTF quals (with HATS SG)
ISITDTU Quals 2018 (with OTA)
2019:
nullcon (with HATS SG)
EvlzCTF (with OTA)
AceBear (with OTA)
hsctf (with OTA)
CryptoCTF (with HATS SG)
2020:
DEFCON (with HATS SG)