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CTF Events

NameDateFormatLocationWeightNotes
DaVinciCTF 202616 May, 08:00 UTC — 16 May 2026, 17:00 UTCJeopardy On-line 32.5956 teams will participate
0xV01D CTF 202618 May, 04:00 UTC — 20 May 2026, 04:00 UTCJeopardy On-line 0.0038 teams will participate
Hack for a Change 2026 May: UN SDG 119 May, 00:00 UTC — 21 May 2026, 23:59 UTCJeopardy On-line 0.002 teams will participate
DEF CON CTF Qualifier 202622 May, 21:00 UTC — 24 May 2026, 21:00 UTCJeopardy On-line 63.22213 teams will participate
SecLeaf Q2 CTF 202623 May, 14:00 UTC — 24 May 2026, 14:00 UTCJeopardy On-line 0.0016 teams will participate
ZEROBREACH CTF24 May, 04:30 UTC — 24 May 2026, 16:30 UTCJeopardy On-line 0.005 teams will participate
Hackअस्त्र29 May, 10:15 UTC — 30 May 2026, 17:15 UTCJeopardy On-line 0.0010 teams will participate
Hardwear.io USA 2026 Hardware CTF29 May, 17:00 UTC — 30 May 2026, 20:50 UTCJeopardy US, Santa Clara 0.0010 teams will participate
THEM?!CTF 202629 May, 18:00 UTC — 31 May 2026, 18:00 UTCJeopardy On-line 0.00160 teams will participate
BYUCTF 202630 May, 00:00 UTC — 31 May 2026, 00:00 UTCJeopardy On-line 53.2931 teams will participate
Grey Cat The Flag 2026 Qualifiers30 May, 02:00 UTC — 31 May 2026, 02:00 UTCJeopardy On-line 47.5037 teams will participate
WhiteHats TrojanCTF 202630 May, 09:00 UTC — 30 May 2026, 19:00 UTCJeopardy Netherlands, Eindhoven 0.000 teams will participate
GPN CTF 202605 June, 10:00 UTC — 06 June 2026, 22:00 UTCJeopardy On-line 69.0025 teams will participate
SAS CTF 2026 Quals06 June, 12:00 UTC — 07 June 2026, 12:00 UTCJeopardy On-line 31.0042 teams will participate
SSMCTF 2026 Qualifiers07 June, 10:00 UTC — 08 June 2026, 10:00 UTCJeopardy On-line 0.0029 teams will participate
Anti-Slop CTF 202613 June, 01:00 UTC — 15 June 2026, 01:00 UTCJeopardy On-line 0.002 teams will participate
CyberSci Nationals 2025-202613 June, 13:00 UTC — 14 June 2026, 23:00 UTCJeopardy Ottawa, Canada 0.003 teams will participate
Crypto CTF 202613 June, 14:00 UTC — 14 June 2026, 14:00 UTCJeopardy On-line 91.0052 teams will participate
BCACTF 7.019 June, 10:00 UTC — 22 June 2026, 10:00 UTCJeopardy On-line 65.059 teams will participate
Google Capture The Flag 202619 June, 18:00 UTC — 21 June 2026, 18:00 UTCJeopardy On-line 88.82143 teams will participate
Grey Cat The Flag 2026 Finals27 June, 02:00 UTC — 28 June 2026, 02:00 UTCJeopardy Singapore 0.002 teams will participate
V1T CTF 202627 June, 02:00 UTC — 28 June 2026, 14:00 UTCJeopardy On-line 22.147 teams will participate
SekaiCTF 202627 June, 08:00 UTC — 29 June 2026, 08:00 UTCJeopardy On-line 79.2529 teams will participate
No Hack No CTF 202604 July, 00:00 UTC — 06 July 2026, 00:00 UTCJeopardy On-line 23.475 teams will participate
R3CTF 202604 July, 02:00 UTC — 06 July 2026, 02:00 UTCJeopardy On-line 35.957 teams will participate
L3akCTF 202610 July, 18:00 UTC — 12 July 2026, 18:00 UTCJeopardy On-line 34.4732 teams will participate
OmniCTF 2026 Quals17 July, 15:00 UTC — 19 July 2026, 15:00 UTCJeopardy On-line 0.0011 teams will participate
DownUnderCTF 202617 July, 19:30 UTC — 19 July 2026, 19:30 UTCJeopardy On-line 94.9945 teams will participate
UIUCTF 202625 July, 00:00 UTC — 27 July 2026, 00:00 UTCJeopardy On-line 69.3512 teams will participate
DIVER OSINT CTF 202625 July, 03:10 UTC — 26 July 2026, 03:10 UTCJeopardy On-line 0.008 teams will participate
D^3CTF 202625 July, 12:00 UTC — 26 July 2026, 12:00 UTCJeopardy On-line 69.229 teams will participate
Universal CTF01 Aug., 07:00 UTC — 02 Aug. 2026, 15:00 UTCJeopardy On-line 0.003 teams will participate
scriptCTF 202608 Aug., 00:00 UTC — 10 Aug. 2026, 00:00 UTCJeopardy On-line 24.7021 teams will participate
gaslightCTF 202614 Aug., 12:00 UTC — 17 Aug. 2026, 12:00 UTCJeopardy On-line 0.005 teams will participate
BrunnerCTF 202621 Aug., 12:00 UTC — 23 Aug. 2026, 12:00 UTCJeopardy On-line 24.6618 teams will participate
ASIS CTF Quals 202629 Aug., 14:00 UTC — 30 Aug. 2026, 14:00 UTCJeopardy On-line 90.5361 teams will participate
NNS CTF 202604 Sept., 16:00 UTC — 06 Sept. 2026, 16:00 UTCJeopardy On-line 25.006 teams will participate
K17 CTF 202611 Sept., 10:00 UTC — 13 Sept. 2026, 10:00 UTCJeopardy On-line 24.836 teams will participate
VolgaCTF 2026 Final17 Sept., 05:00 UTC — 17 Sept. 2026, 15:00 UTCAttack-Defense Russia, Samara 25.001 teams will participate
H7CTF 2026 Quals26 Sept., 03:30 UTC — 27 Sept. 2026, 15:30 UTCJeopardy On-line 27.494 teams will participate
Pointer Overflow CTF - 202627 Sept., 14:00 UTC — 06 Dec. 2026, 14:00 UTCJeopardy On-line 012 teams will participate
Hack.lu CTF 202623 Oct., 18:00 UTC — 25 Oct. 2026, 18:00 UTCJeopardy On-line 94.7417 teams will participate
H7CTF 2026 Finals24 Oct., 06:30 UTC — 25 Oct. 2026, 06:30 UTCAttack-Defense Chennai, Tamil Nadu 0.000 teams will participate
BlackAlps CTF 202606 Nov., 18:15 UTC — 06 Nov. 2026, 22:30 UTCJeopardy Switzerland, Yverdon-les-Bains 0.002 teams will participate
WolvCTF 202613 Nov., 23:00 UTC — 15 Nov. 2026, 23:00 UTCJeopardy On-line 0.0048 teams will participate
Platypwn 202614 Nov., 09:00 UTC — 15 Nov. 2026, 21:00 UTCJeopardy On-line 37.0013 teams will participate
SwampCTF 202620 Nov., 21:00 UTC — 22 Nov. 2026, 21:00 UTCJeopardy On-line 0.009 teams will participate
ASIS CTF Finals 202627 Dec., 14:00 UTC — 28 Dec. 2026, 14:00 UTCJeopardy On-line 99.38