July 30, 2021, 5:31 p.m. "e-Jornadas 2021" dates changed.

July 30, 2021, 3:40 p.m. "RCTS CERT 2021 Defending the SOC" dates changed.

July 30, 2021, 3:04 p.m. "RCTS CERT 2021 Defending the SOC" dates changed.

July 30, 2021, 3:02 p.m. "RCTS CERT 2021 Defending the SOC" dates changed.

July 29, 2021, 4:11 p.m. "RCTS CERT 2021 Defending the SOC" dates changed.

July 29, 2021, 3:42 p.m. "RCTS CERT CTF 2021: Defending the SOC" dates changed.

July 29, 2021, 2:41 p.m. "HTB Business CTF 2021" scoreboard added.

July 28, 2021, 2:57 p.m. "ImaginaryCTF 2021" scoreboard added.

July 25, 2021, 11:05 a.m. "CyBRICS CTF 2021" scoreboard added.

July 25, 2021, 10:18 a.m. "CyBRICS CTF 2021" scoreboard added.

July 25, 2021, 10:15 a.m. "CyBRICS CTF 2021" scoreboard added.

July 25, 2021, 7:53 a.m. "IJCTF 2021" scoreboard added.

July 24, 2021, 5:42 p.m. "Red Team Village CTF Qualifiers - DEF CON 29 (2021)" dates changed.

July 24, 2021, 10:11 a.m. "Red Team Village CTF Qualifiers - DEF CON 29 (2021)" dates changed.

July 22, 2021, 7:05 a.m. "Securebug.se CTF Loki 2021" scoreboard added.

July 21, 2021, 7:27 p.m. "MHSCTF 2022" is publically votable.

July 21, 2021, 7:27 p.m. "MHSCTF 2022" published.

July 21, 2021, 7:27 p.m. "RTLxHA CTF 21" is publically votable.

July 21, 2021, 7:27 p.m. "RTLxHA CTF 21" published.

July 21, 2021, 7:27 p.m. "BSidesTLV 2021 CTF" is publically votable.

July 21, 2021, 7:27 p.m. "BSidesTLV 2021 CTF" published.

July 21, 2021, 7:26 p.m. "CSCML CTF 2021" is publically votable.

July 21, 2021, 7:26 p.m. "CSCML CTF 2021" published.

July 21, 2021, 7:25 p.m. "DamCTF 2021" is publically votable.

July 21, 2021, 7:25 p.m. "DamCTF 2021" published.

July 21, 2021, 1:14 a.m. "CyberSci Nationals 2021" scoreboard added.

July 19, 2021, 5:13 a.m. "Lexington Informatics Tournament CTF 2021" scoreboard added.

July 19, 2021, midnight "Google Capture The Flag 2021" scoreboard added.

July 18, 2021, 8:15 a.m. "TyphoonCon CTF 2021" scoreboard added.

July 16, 2021, 6:49 p.m. "Hack-A-Sat 2 Qualifiers" scoreboard added.

July 12, 2021, 8:27 p.m. "redpwnCTF 2021" scoreboard added.

July 10, 2021, 10:27 p.m. "ENOWARS 5" scoreboard added.

July 7, 2021, 3:27 p.m. "Securebug.se CTF Loki 2021" is publically votable.

July 7, 2021, 3:27 p.m. "Securebug.se CTF Loki 2021" published.

July 7, 2021, 3:26 p.m. "Hospital Under Siege" is publically votable.

July 7, 2021, 3:26 p.m. "Hospital Under Siege" published.

July 7, 2021, 3:26 p.m. "Hackers Playground 2021" is publically votable.

July 7, 2021, 3:26 p.m. "Hackers Playground 2021" published.

July 7, 2021, 3:26 p.m. "BSides Noida CTF" is publically votable.

July 7, 2021, 3:26 p.m. "BSides Noida CTF" published.

July 7, 2021, 3:25 p.m. "Securebug.se CTF Loki | 2021" is publically votable.

July 7, 2021, 3:25 p.m. "Securebug.se CTF Loki | 2021" published.

July 7, 2021, 3:25 p.m. "Lexington Informatics Tournament CTF 2021" is publically votable.

July 7, 2021, 3:25 p.m. "Lexington Informatics Tournament CTF 2021" published.

July 6, 2021, 8:53 p.m. "MHSCTF 2022" dates changed.

July 6, 2021, 8:59 a.m. "CyberSci Nationals 2021" published.

July 6, 2021, 7:58 a.m. "RuCTF 2021" is postponed.

July 6, 2021, 7:50 a.m. "Lexington Informatics Tournament CTF 2021" dates changed.

July 5, 2021, 1:43 p.m. "0CTF/TCTF 2021 Quals " scoreboard added.

July 5, 2021, 8:33 a.m. "CyberThreatForce CTF | 2021" scoreboard added.