CTFtime.org

CTF Events

NameDateFormatLocationWeightNotes
CTF@CIT 202525 April, 21:00 UTC — 27 April 2025, 19:00 UTCJeopardy On-line 24.5774 teams will participate
UMDCTF 202525 April, 22:00 UTC — 27 April 2025, 22:00 UTCJeopardy On-line 70.8678 teams will participate
BSidesSF 2025 CTF25 April, 23:00 UTC — 27 April 2025, 23:00 UTCJeopardy On-line 0.0022 teams will participate
HACKTHEON SEJONG 2025 Preliminaries26 April, 00:00 UTC — 26 April 2025, 09:00 UTCJeopardy On-line 0.0020 teams will participate
Midnight Sun CTF 2025 Quals26 April, 12:00 UTC — 27 April 2025, 12:00 UTCJeopardy On-line 53.0054 teams will participate
[POSTPONED] AlpacaHack Round 11 (Web)27 April, 03:00 UTC — 27 April 2025, 09:00 UTCJeopardy On-line 0Individual
ICCSDFAI29 April, 11:00 UTC — 30 April 2025, 17:00 UTCJeopardy Astana, Kazakhstan 0.0016 teams will participate
bi0sCTF 202503 May, 05:30 UTC — 04 May 2025, 17:30 UTCJeopardy On-line 95.7927 teams will participate
UniVsThreats 25 CTF03 May, 10:00 UTC — 04 May 2025, 10:00 UTCJeopardy On-line 0.005 teams will participate
DevSecOps CTF 202504 May, 10:00 UTC — 04 May 2025, 22:00 UTCJeopardy On-line 37.007 teams will participate
LakeCTF Finals 24-2509 May, 08:00 UTC — 09 May 2025, 16:00 UTCJeopardy EPFL Lausanne 36.006 teams will participate
Break the Syntax CTF 202509 May, 16:00 UTC — 11 May 2025, 10:00 UTCJeopardy On-line 42.0012 teams will participate
DamCTF 202510 May, 00:00 UTC — 12 May 2025, 00:00 UTCJeopardy On-line 60.6729 teams will participate
justCTF 2025 teaser10 May, 09:00 UTC — 11 May 2025, 09:00 UTCJeopardy On-line 97.2016 teams will participate
BYUCTF 202517 May, 02:00 UTC — 18 May 2025, 02:00 UTCJeopardy On-line 36.9412 teams will participate
WhiteHats TrojanCTF 202517 May, 09:00 UTC — 17 May 2025, 21:00 UTCJeopardy Netherlands, Eindhoven 0.001 teams will participate
SAS CTF 2025 Quals17 May, 12:00 UTC — 18 May 2025, 12:00 UTCJeopardy On-line 20.7228 teams will participate
HACK'OSINT CTF - 202523 May, 19:00 UTC — 25 May 2025, 19:00 UTCJeopardy France 0.007 teams will participate
DaVinciCTF 202524 May, 10:00 UTC — 25 May 2025, 20:00 UTCJeopardy On-line 0.001 teams will participate
N0PSctf31 May, 08:00 UTC — 01 June 2025, 20:00 UTCJeopardy On-line 24.3421 teams will participate
[POSTPONED] Internet Festival 2025 CTF Quals31 May, 11:00 UTC — 01 June 2025, 11:00 UTCJeopardy On-line 0.003 teams will participate
smileyCTF 202506 June, 01:00 UTC — 08 June 2025, 01:00 UTCJeopardy On-line 48.614 teams will participate
Season V, US Cyber Open Beginner's Game Room CTF06 June, 21:30 UTC — 19 June 2025, 23:59 UTCJeopardy On-line 0Individual
DIVER OSINT CTF 202507 June, 03:00 UTC — 08 June 2025, 03:00 UTCJeopardy On-line 0.0010 teams will participate
Goldrush Gauntlet 202507 June, 13:00 UTC — 08 June 2025, 21:00 UTCJeopardy United States, Dahloenga 0.000 teams will participate
Crypto CTF 202514 June, 06:00 UTC — 15 June 2025, 06:00 UTCJeopardy On-line 88.2530 teams will participate
CyberSci Nationals 202514 June, 13:00 UTC — 15 June 2025, 23:00 UTCJeopardy Ottawa, Canada 25.001 teams will participate
GPN CTF 202520 June, 10:00 UTC — 21 June 2025, 22:00 UTCJeopardy On-line 46.001 teams will participate
GMO Cybersecurity Contest - IERAE CTF 202521 June, 06:00 UTC — 22 June 2025, 06:00 UTCJeopardy On-line 25.003 teams will participate
Google Capture The Flag 202527 June, 18:00 UTC — 29 June 2025, 18:00 UTCJeopardy On-line 97.1753 teams will participate
UIUCTF 202528 June, 00:00 UTC — 30 June 2025, 00:00 UTCJeopardy On-line 91.434 teams will participate
R3CTF 202505 July, 02:00 UTC — 07 July 2025, 02:00 UTCJeopardy On-line 24.508 teams will participate
L3akCTF 202511 July, 17:00 UTC — 13 July 2025, 17:00 UTCJeopardy On-line 24.4328 teams will participate
DownUnderCTF 202518 July, 09:30 UTC — 20 July 2025, 09:30 UTCJeopardy On-line 91.6652 teams will participate
DeadSec CTF 202525 July, 22:00 UTC — 27 July 2025, 22:00 UTCJeopardy On-line 31.293 teams will participate
World Wide CTF 202526 July, 12:00 UTC — 28 July 2025, 12:00 UTCJeopardy On-line 24.488 teams will participate
GaianSpace CTF 202508 Aug., 14:00 UTC — 12 Aug. 2025, 14:00 UTCJeopardy On-line 0.003 teams will participate
WHY2025 CTF08 Aug., 16:00 UTC — 11 Aug. 2025, 16:00 UTCJeopardy On-line 0.000 teams will participate
jailCTF 202515 Aug., 20:00 UTC — 18 Aug. 2025, 20:00 UTCJeopardy On-line 24.880 teams will participate
SekaiCTF 202523 Aug., 01:00 UTC — 25 Aug. 2025, 01:00 UTCJeopardy On-line 55.0014 teams will participate
NNS CTF 202529 Aug., 16:00 UTC — 31 Aug. 2025, 16:00 UTCJeopardy On-line 0.005 teams will participate
ASIS CTF Quals 202506 Sept., 14:00 UTC — 07 Sept. 2025, 14:00 UTCJeopardy On-line 96.2915 teams will participate
CrewCTF 202519 Sept., 21:00 UTC — 21 Sept. 2025, 21:00 UTCJeopardy On-line 38.936 teams will participate
Equinor CTF 202508 Nov., 09:00 UTC — 08 Nov. 2025, 19:00 UTCJeopardy Norway, Oslo 37.003 teams will participate
Platypwn 202515 Nov., 12:00 UTC — 16 Nov. 2025, 12:00 UTCJeopardy On-line 33.293 teams will participate
GlacierCTF 202522 Nov., 18:00 UTC — 23 Nov. 2025, 18:00 UTCJeopardy On-line 52.574 teams will participate
ASIS CTF Final 202527 Dec., 14:00 UTC — 28 Dec. 2025, 14:00 UTCJeopardy On-line 100.0014 teams will participate