CTFtime.org

CTF Events

NameDateFormatLocationWeightNotes
MetaCTF December 2025 Flash CTF20 Dec., 17:00 UTC — 20 Dec. 2025, 20:00 UTCJeopardy On-line 0Individual
SecurITy Challenge - VianuCTF 202516 Dec., 07:30 UTC — 16 Dec. 2025, 14:30 UTCJeopardy On-line 0Individual
Advent of CTF 202502 Dec., 01:00 UTC — 01 Jan. 2026, 04:59 UTCJeopardy On-line 0Individual
Infosec University Hackathon 202523 Nov., 02:00 UTC — 23 Nov. 2025, 07:00 UTCJeopardy On-line 0Individual
MetaCTF November 2025 Flash CTF20 Nov., 22:00 UTC — 21 Nov. 2025, 00:00 UTCJeopardy On-line 0Individual
Layer7 CTF 202515 Nov., 01:00 UTC — 16 Nov. 2025, 01:00 UTCJeopardy On-line 0Individual
POC CTF Final 202513 Nov., 23:00 UTC — 14 Nov. 2025, 06:00 UTCJeopardy Four Seasons Hotel in Seoul, Korea 0Individual
ZeroDay CTF 202530 Oct., 13:00 UTC — 31 Oct. 2025, 13:00 UTCJeopardy On-line 0Individual
Iran Tech Olympics Speed-Run CTF 202528 Oct., 06:30 UTC — 28 Oct. 2025, 06:30 UTCJeopardy Tehran, Iran 0Individual
Web Arena18 Oct., 12:30 UTC — 19 Oct. 2025, 12:30 UTCJeopardy On-line 0Individual
OmniCTF - 2025 - Individuals18 Oct., 07:00 UTC — 18 Oct. 2025, 13:00 UTCJeopardy Romania, ConstanČ›a 0Individual
POC CTF Qualification 202512 Oct., 10:00 UTC — 13 Oct. 2025, 10:00 UTCJeopardy On-line 0Individual
ECW Online Qualifiers08 Oct., 12:00 UTC — 22 Oct. 2025, 14:00 UTCJeopardy On-line 0Individual
openECSC 202529 Sept., 18:00 UTC — 05 Oct. 2025, 23:59 UTCJeopardy On-line 0Individual
DFIR Labs Digital Forensics Challenge by The DFIR Report27 Sept., 16:30 UTC — 27 Sept. 2025, 20:30 UTCJeopardy On-line 0Individual
HackornCTF 2025 Quals25 Sept., 00:00 UTC — 25 Sept. 2025, 23:59 UTCJeopardy On-line 0Individual
ATLA Opening Date CTF20 Sept., 05:00 UTC — 20 Sept. 2025, 13:00 UTCJeopardy Kyrgyzstan, Bishkek 0Individual
Blue Arena29 Aug., 14:04 UTC — 31 Aug. 2025, 14:33 UTCJeopardy On-line 0Individual
Sawah Cyber Security CTF 202523 Aug., 05:00 UTC — 23 Aug. 2025, 09:00 UTCJeopardy Indonesia, Bali 0Individual
CRHC CTF 202516 Aug., 09:00 UTC — 18 Aug. 2025, 09:00 UTCJeopardy On-line 0Individual
BelkaCTF #725 July, 13:00 UTC — 27 July 2025, 13:00 UTCJeopardy On-line 0Individual
AlpacaHack Round 13 (Crypto)20 July, 03:00 UTC — 20 July 2025, 09:00 UTCJeopardy On-line 0Individual
CRMA mini CTF 202511 July, 17:00 UTC — 12 July 2025, 16:59 UTCJeopardy On-line 0Individual
CTF Cybercamp UMU 3.011 July, 15:00 UTC — 13 July 2025, 22:00 UTCJeopardy On-line 0Individual
AlpacaHack Round 12 (Crypto)06 July, 03:00 UTC — 06 July 2025, 09:00 UTCJeopardy On-line 0Individual
Cyber Arena05 July, 10:04 UTC — 06 July 2025, 10:04 UTCJeopardy On-line 0Individual
Impossible Mission Force Capture The Flag05 July, 07:00 UTC — 06 July 2025, 20:00 UTCJeopardy On-line 0Individual
Involuntary CTF 202527 June, 18:00 UTC — 29 June 2025, 18:00 UTCJeopardy On-line 0Individual
MetaCTF June 2025 Flash CTF26 June, 21:00 UTC — 26 June 2025, 23:00 UTCJeopardy On-line 0Individual
Cyber Lumen x GWK #CTF116 June, 11:49 UTC — 16 June 2025, 11:49 UTCJeopardy On-line 0Individual
Season V, US Cyber Open Competitive CTF09 June, 20:00 UTC — 19 June 2025, 23:59 UTCJeopardy On-line 0Individual
DFIR Labs CTF by The DFIR Report07 June, 16:30 UTC — 07 June 2025, 20:30 UTCJeopardy On-line 0Individual
Season V, US Cyber Open Beginner's Game Room CTF06 June, 21:30 UTC — 19 June 2025, 23:59 UTCJeopardy On-line 0Individual
AI CTF 202522 May, 17:00 UTC — 24 May 2025, 09:00 UTCJeopardy On-line 0Individual
AlpacaHack Round 11 (Web)17 May, 03:00 UTC — 17 May 2025, 09:00 UTCJeopardy On-line 0Individual
Rams CTF 202510 May, 15:11 UTC — 10 May 2025, 15:11 UTCJeopardy On-line 0Individual
CPCTF 202518 April, 11:00 UTC — 20 April 2025, 11:00 UTCJeopardy On-line 0Individual
Dreamhack Invitational 202508 April, 00:00 UTC — 08 April 2025, 21:00 UTCJeopardy COEX, Seoul, South Korea 0Individual
CyberGame 202501 April, 00:00 UTC — 09 June 2025, 23:59 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #6 (Div. 2)29 March, 00:00 UTC — 29 March 2025, 15:00 UTCJeopardy On-line 0Individual
UNbreakable International 2025 - Individual Phase28 March, 09:00 UTC — 28 March 2025, 10:00 UTCJeopardy On-line 0Individual
StealthCup28 March, 07:00 UTC — 28 March 2025, 15:00 UTCHack quest Vienna, Austria / Hybrid (Online) 0Individual
AlpacaHack Round 10 (Pwn)23 March, 03:00 UTC — 23 March 2025, 09:00 UTCJeopardy On-line 0Individual
DFIR Labs CTF by The DFIR Report08 March, 16:00 UTC — 08 March 2025, 20:00 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #5 (Div. 1)08 March, 00:00 UTC — 08 March 2025, 15:00 UTCJeopardy On-line 0Individual
CSCG 202501 March, 17:00 UTC — 01 May 2025, 16:00 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #4 (Div. 2)22 Feb., 00:00 UTC — 22 Feb. 2025, 15:00 UTCJeopardy On-line 0Individual
ThunderCipher20 Feb., 07:30 UTC — 20 Feb. 2025, 13:30 UTCJeopardy On-line 0Individual
Dreamhack Invitational Quals 202508 Feb., 00:00 UTC — 09 Feb. 2025, 00:00 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #3 (Div. 1)01 Feb., 00:00 UTC — 01 Feb. 2025, 15:00 UTCJeopardy On-line 0Individual
AlpacaHack Round 9 (Crypto)26 Jan., 03:00 UTC — 26 Jan. 2025, 09:00 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #2 (Div. 2)25 Jan., 00:00 UTC — 25 Jan. 2025, 15:00 UTCJeopardy On-line 0Individual
TSCCTF 202513 Jan., 02:00 UTC — 16 Jan. 2025, 02:00 UTCJeopardy On-line 0Individual
Dreamhack CTF Season 7 Round #1 (Div. 1)11 Jan., 00:00 UTC — 11 Jan. 2025, 15:00 UTCJeopardy On-line 0Individual