May 28, 2021, 5:48 a.m. "Balsn CTF 2021" published.

May 27, 2021, 4:54 p.m. "SPbCTF's Student CTF 2021 Finals" published.

May 27, 2021, 4:54 p.m. "SPbCTF's Student CTF 2021 Finals" is publically votable.

May 27, 2021, 4:54 p.m. "SPbCTF's Student CTF 2021 Quals" is publically votable.

May 27, 2021, 4:54 p.m. "SPbCTF's Student CTF 2021 Quals" published.

May 25, 2021, 4:02 p.m. "NorthSec 2021" scoreboard added.

May 25, 2021, 3:14 p.m. "NorzhCTF 2021" scoreboard added.

May 21, 2021, 9:13 a.m. "ENOWARS 5" dates changed.

May 20, 2021, 3:48 p.m. "FreedomCTF Spring 2021" dates changed.

May 20, 2021, 1:01 p.m. "RuCTF 2021" dates changed.

May 20, 2021, 7:25 a.m. "UIUCTF 2021" is publically votable.

May 20, 2021, 7:25 a.m. "UIUCTF 2021" published.

May 20, 2021, 7:25 a.m. "wtfctf" is publically votable.

May 20, 2021, 7:25 a.m. "wtfctf" published.

May 20, 2021, 7:24 a.m. "Securinets CTF Finals 2021" is publically votable.

May 17, 2021, 7:52 p.m. "pbctf 2021" is publically votable.

May 17, 2021, 7:52 p.m. "pbctf 2021" published.

May 17, 2021, 7:51 p.m. "BCACTF 2.0" is publically votable.

May 17, 2021, 7:51 p.m. "BCACTF 2.0" published.

May 17, 2021, 7:51 p.m. "NorthSec 2021" is publically votable.

May 17, 2021, 7:51 p.m. "NorthSec 2021" published.

May 17, 2021, 7:51 p.m. "InCTF 2021" is publically votable.

May 17, 2021, 7:51 p.m. "InCTF 2021" published.

May 17, 2021, 8:17 a.m. "InCTF 2021" dates changed.

May 16, 2021, 10:24 p.m. "DCTF 2021" scoreboard added.

May 16, 2021, 8:53 p.m. "m0leCon CTF 2021 Teaser" scoreboard added.

May 16, 2021, 5:44 p.m. "3kCTF-2021" scoreboard added.

May 16, 2021, 1:04 p.m. "OMH 2021 CTF" scoreboard added.

May 16, 2021, 2:27 a.m. "FarEastCTF - 2021" scoreboard added.

May 13, 2021, 4:04 a.m. "PwnTillDawn Online Battlefield - Goodwill Edition 2021" scoreboard added.

May 10, 2021, 3 p.m. "San Diego CTF 2021" scoreboard added.

May 9, 2021, 2:37 p.m. "DawgCTF 2021" scoreboard added.

May 8, 2021, 10:56 p.m. "saarCTF 2021" scoreboard added.

May 7, 2021, 6:38 a.m. "N1CTF 2021" is publically votable.

May 7, 2021, 6:38 a.m. "N1CTF 2021" published.

May 7, 2021, 6:37 a.m. "S.H.E.L.L. CTF" is publically votable.

May 7, 2021, 6:37 a.m. "S.H.E.L.L. CTF" published.

May 7, 2021, 6:37 a.m. "Hack-A-Sat 2 Finals" is publically votable.

May 7, 2021, 6:37 a.m. "Hack-A-Sat 2 Finals" published.

May 7, 2021, 6:37 a.m. "Hack-A-Sat 2 Qualifiers" is publically votable.

May 7, 2021, 6:37 a.m. "Hack-A-Sat 2 Qualifiers" published.

May 6, 2021, 5:38 p.m. "Hack-A-Sat Finals" scoreboard added.

May 6, 2021, 3:42 p.m. "HSCTF 8" dates changed.

May 6, 2021, 6:22 a.m. "redpwnCTF 2021" dates changed.

May 5, 2021, 6:31 a.m. "COMPFEST CTF 2021" is publically votable.

May 5, 2021, 6:31 a.m. "COMPFEST CTF 2021" published.

May 5, 2021, 6:31 a.m. "corCTF 2021" is publically votable.

May 5, 2021, 6:31 a.m. "corCTF 2021" published.

May 5, 2021, 6:31 a.m. "DCTF 2021" is publically votable.

May 5, 2021, 6:31 a.m. "DCTF 2021" published.