April 6, 2021, 11:01 a.m. "m0leCon CTF 2021 Teaser" published.

April 6, 2021, 11:01 a.m. "Pragyan CTF 2021" is publically votable.

April 6, 2021, 11:01 a.m. "Pragyan CTF 2021" published.

April 6, 2021, 9:16 a.m. "Pragyan CTF 2021" dates changed.

April 6, 2021, 9:10 a.m. "Pragyan CTF 2021" dates changed.

April 6, 2021, 9:07 a.m. "Pragyan CTF 2021" dates changed.

April 6, 2021, 9:06 a.m. "Pragyan CTF 2021" dates changed.

April 5, 2021, 11:20 p.m. "b01lers CTF" scoreboard added.

April 5, 2021, 12:34 p.m. "Pragyan CTF 2021" dates changed.

April 4, 2021, 9:29 a.m. "S4CTF 2021" is publically votable.

April 4, 2021, 9:29 a.m. "S4CTF 2021" published.

April 4, 2021, 9:28 a.m. "TastelessCTF 2021" is publically votable.

April 4, 2021, 9:28 a.m. "TastelessCTF 2021" published.

April 4, 2021, 9:28 a.m. "CTFZone 2021" is publically votable.

April 4, 2021, 9:28 a.m. "CTFZone 2021" published.

April 3, 2021, 5:24 p.m. "X-MAS GTF 2021" scoreboard added.

April 2, 2021, 7:03 p.m. "CS166 x FSAB CTF 2021" scoreboard added.

April 1, 2021, 8:49 p.m. "FooBar CTF 2021" scoreboard added.

March 31, 2021, 2:11 p.m. "Midnight Sun CTF 2021 Finals" dates changed.

March 30, 2021, 2:44 p.m. "FooBar CTF 2021" is publically votable.

March 30, 2021, 2:44 p.m. "FooBar CTF 2021" published.

March 30, 2021, 2:44 p.m. "Securebug.se CTF Odin 2021" is publically votable.

March 30, 2021, 2:44 p.m. "Securebug.se CTF Odin 2021" published.

March 30, 2021, 2:43 p.m. "X-MAS GTF 2021" is publically votable.

March 30, 2021, 2:43 p.m. "X-MAS GTF 2021" published.

March 28, 2021, 10:20 p.m. "UMassCTF 2021" scoreboard added.

March 28, 2021, 2:06 p.m. "VolgaCTF 2021 Qualifier" scoreboard added.

March 25, 2021, 10:13 a.m. Team "pl4nty" added as an alias to "CSSA".

March 25, 2021, 10:13 a.m. Team "way2love" added as an alias to "mark0smith".

March 25, 2021, 10:13 a.m. Team "UntamedFriesians" added as an alias to "UntaimedFriesians".

March 25, 2021, 10:13 a.m. Team "hnoson" added as an alias to "h_noson".

March 25, 2021, 10:13 a.m. Team "inTheShell" added as an alias to "InTheShell_".

March 25, 2021, 10:13 a.m. Team "potatoJackson" added as an alias to "potato-jackson".

March 25, 2021, 10:13 a.m. Team "Neuro" added as an alias to "PHhackers".

March 25, 2021, 10:13 a.m. Team "Necrogizer" added as an alias to "N3cr0g1z3r".

March 25, 2021, 10:13 a.m. Team "Silly Billy" added as an alias to "Bat Squad".

March 25, 2021, 10:13 a.m. Team "hakkogspaghetti" added as an alias to "hakk og spaghetti".

March 25, 2021, 10:13 a.m. Team "attatty" added as an alias to "NoPwn4OldMen".

March 25, 2021, 10:13 a.m. Team "c2FibG9fcHJlc3Rpego" added as an alias to "c2FibG9fcHJlc3Rpego=".

March 25, 2021, 10:13 a.m. Team "Zekah" added as an alias to "Chat-1".

March 25, 2021, 10:13 a.m. Team "Area{51}" added as an alias to "Area 51".

March 25, 2021, 10:13 a.m. Team "UnicornsofSecurity" added as an alias to "Unicorns of Security".

March 25, 2021, 10:13 a.m. Team "sh4d0wd0g" added as an alias to "IsolatingBeforeItWasCool".

March 25, 2021, 10:13 a.m. Team "H4ckP4ck" added as an alias to "hackpack".

March 25, 2021, 10:13 a.m. Team "Niubi" added as an alias to "Niubi_team".

March 24, 2021, 8:08 a.m. "CS166 x FSAB CTF 2021" published.

March 24, 2021, 8:08 a.m. "BSides Canberra 2021 CTF" published.

March 24, 2021, 8:07 a.m. "Incognito 2.0" is publically votable.

March 24, 2021, 8:07 a.m. "Incognito 2.0" published.

March 24, 2021, 8:07 a.m. "TAMUctf 2021" is publically votable.