NameDateFormatLocationWeightNotes
Wicked6: 2023 Women's Global Cyber League30 March, 21:00 UTC — 31 March 2023, 21:00 UTCJeopardy On-line 0.0015 teams will participate
VishwaCTF 202331 March, 10:30 UTC — 02 April 2023, 10:30 UTCJeopardy On-line 22.6931 teams will participate
RITSEC CTF 202331 March, 16:00 UTC — 02 April 2023, 16:00 UTCJeopardy On-line 30.6231 teams will participate
Hack-A-Sat 4 Qualifiers01 April, 00:00 UTC — 03 April 2023, 00:00 UTCJeopardy40.0027 teams will participate
Securinets CTF Quals 202301 April, 18:00 UTC — 02 April 2023, 18:00 UTCJeopardy On-line 65.4216 teams will participate
DamCTF 202307 April, 00:00 UTC — 08 April 2023, 00:00 UTCJeopardy On-line 32.7613 teams will participate
Bucket CTF 202307 April, 17:00 UTC — 09 April 2023, 17:00 UTCJeopardy On-line 0.009 teams will participate
cursedCTF 202308 April, 00:00 UTC — 11 April 2023, 00:00 UTCJeopardy On-line 0.0011 teams will participate
Midnight Sun CTF 2023 Quals08 April, 11:00 UTC — 09 April 2023, 11:00 UTCJeopardy On-line 35.9111 teams will participate
YetiCTF202314 April, 08:00 UTC — 17 April 2023, 18:00 UTCAttack-Defense Russia, Novosibirsk, NSTU 0.006 teams will participate
HackPack CTF 202314 April, 15:00 UTC — 15 April 2023, 14:59 UTCJeopardy On-line 43.508 teams will participate
PlaidCTF 202314 April, 21:00 UTC — 16 April 2023, 21:00 UTCJeopardy On-line 100.0061 teams will participate
JerseyCTF III15 April, 12:00 UTC — 16 April 2023, 12:00 UTCJeopardy Newark, NJ, USA AND Online if unable to attend in-person 25.0019 teams will participate
Summit CTF15 April, 13:00 UTC — 16 April 2023, 23:00 UTCJeopardy On-line 0.005 teams will participate
Space Heroes CTF21 April, 21:00 UTC — 23 April 2023, 21:00 UTCJeopardy On-line 23.9415 teams will participate
BSidesSF CTF 202322 April, 00:00 UTC — 24 April 2023, 00:00 UTCJeopardy On-line 35.004 teams will participate
Ricerca CTF 202322 April, 01:00 UTC — 22 April 2023, 13:00 UTCJeopardy On-line 0.006 teams will participate
√•ngstromCTF 202322 April, 12:00 UTC — 27 April 2023, 11:59 UTCJeopardy On-line 86.3034 teams will participate
TAMUctf 202328 April, 06:00 UTC — 30 April 2023, 06:00 UTCJeopardy On-line 37.004 teams will participate
D^3CTF 202328 April, 12:00 UTC — 30 April 2023, 12:00 UTCJeopardy On-line 28.003 teams will participate
CrewCTF 202328 April, 17:00 UTC — 30 April 2023, 17:00 UTCJeopardy On-line 20.3319 teams will participate
Punk Security DevSecOps Birthday CTF04 May, 16:00 UTC — 05 May 2023, 00:00 UTCJeopardy On-line 0.006 teams will participate
PwnMe Qualifications : "8 bits"05 May, 10:00 UTC — 07 May 2023, 10:00 UTCJeopardy On-line 0.002 teams will participate
ostctf 202306 May, 07:00 UTC — 06 May 2023, 16:00 UTCJeopardy Switzerland, Rapperswil 0.006 teams will participate
ICSJWG Spring 202306 May, 18:00 UTC — 11 May 2023, 18:00 UTCJeopardy On-line 0.005 teams will participate
m0leCon CTF 2023 Teaser12 May, 17:00 UTC — 13 May 2023, 17:00 UTCJeopardy On-line 53.628 teams will participate
HackDay Final 202312 May, 18:00 UTC — 13 May 2023, 18:00 UTCJeopardy France, Noisy-le-Grand 0.005 teams will participate
[POSTPONED] VettoCon CTF 202312 May, 19:00 UTC — 13 May 2023, 19:00 UTCJeopardy Italy, Pisa 0.004 teams will participate
San Diego CTF 202313 May, 00:00 UTC — 15 May 2023, 00:00 UTCJeopardy On-line 33.8811 teams will participate
Challenge the Cyber - Aquatic Adventure13 May, 13:00 UTC — 13 May 2023, 17:00 UTCJeopardy Netherlands, TBD 0.005 teams will participate
VolgaCTF 2023 Qualifier13 May, 15:00 UTC — 14 May 2023, 15:00 UTCJeopardy On-line 24.3327 teams will participate
BYUCTF 202319 May, 17:00 UTC — 21 May 2023, 05:00 UTCJeopardy On-line 20.914 teams will participate
Cryptoverse CTF 202320 May, 21:00 UTC — 22 May 2023, 03:00 UTCJeopardy On-line 24.526 teams will participate
Hack a Bit (Final)26 May, 00:00 UTC — 28 May 2023, 00:00 UTCJeopardy On-line 0.002 teams will participate
TJCTF 202326 May, 00:00 UTC — 28 May 2023, 00:00 UTCJeopardy On-line 24.763 teams will participate
DEF CON CTF Qualifier 202327 May, 00:00 UTC — 29 May 2023, 00:00 UTCJeopardy On-line 76.3838 teams will participate
SEETF 202303 June, 02:00 UTC — 04 June 2023, 10:00 UTCJeopardy On-line 24.8822 teams will participate
justCTF 202303 June, 06:00 UTC — 04 June 2023, 21:00 UTCJeopardy On-line 53.003 teams will participate
Ugra CTF Open 202307 June, 06:00 UTC — 07 June 2023, 15:00 UTCJeopardy On-line 26.8222 teams will participate
n00bzCTF09 June, 16:00 UTC — 11 June 2023, 16:00 UTCJeopardy On-line 15.1211 teams will participate
Google Capture The Flag 202323 June, 18:00 UTC — 25 June 2023, 18:00 UTCJeopardy On-line 99.7418 teams will participate
UIUCTF 202301 July, 00:00 UTC — 03 July 2023, 00:00 UTCJeopardy On-line 50.756 teams will participate
Crypto CTF 202307 July, 14:00 UTC — 08 July 2023, 14:00 UTCJeopardy On-line 59.6025 teams will participate
Zh3r0 CTF v307 July, 18:30 UTC — 09 July 2023, 18:30 UTCJeopardy On-line 0.003 teams will participate
corCTF 202329 July, 00:00 UTC — 31 July 2023, 00:00 UTCJeopardy On-line 36.976 teams will participate
Midnight Sun CTF 2023 Finals19 Aug., 11:00 UTC — 20 Aug. 2023, 11:00 UTCJeopardy Sweden, Stockholm 35.912 teams will participate
SekaiCTF 202325 Aug., 16:00 UTC — 27 Aug. 2023, 16:00 UTCJeopardy On-line 24.866 teams will participate
Hack.lu CTF 202313 Oct., 18:00 UTC — 15 Oct. 2023, 18:00 UTCJeopardy On-line 94.7310 teams will participate