CTF Time

Name: ECW Online Qualifiers (an ECW event.)
Date: Oct. 8, 2025, noon — 22 Oct. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://challenge-ecw.eu/
Rating weight: 0
Event organizers: Astek Group

Name: QnQSec CTF 2025 (an QnQSec event.)
Date: Oct. 16, 2025, 6 p.m. — 19 Oct. 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.qnqsec.team/
Rating weight: 24.76
Event organizers: QnQSec

Name: Hack.lu CTF 2025 (an Hack.lu CTF event.)
Date: Oct. 17, 2025, 6 p.m. — 19 Oct. 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://flu.xxx/
Rating weight: 98.02
Event organizers: FluxFingers

Name: H7CTF 2025 (an H7CTF event.)
Date: Oct. 18, 2025, 3:30 a.m. — 19 Oct. 2025, 15:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.h7tex.com/
Rating weight: 22.56
Event organizers: H7Tex

Name: Web Arena (an Cyber Arena event.)
Date: Oct. 18, 2025, 12:30 p.m. — 19 Oct. 2025, 12:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Online
Offical URL: https://csem.sturtles.in/events/3/
Rating weight: 0
Event organizers: Super_Hacker

Name: OmniCTF - 2025 - Individuals (an OmniCTF event.)
Date: Oct. 18, 2025, 7 a.m. — 18 Oct. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Romania, Constanța
Offical URL: https://omnictf.com/
Rating weight: 0
Event organizers: f4ckWind0s

Name: Hackfest CTF 2025 (an Hackfest CTF event.)
Date: Oct. 16, 2025, 7:30 p.m. — 17 Oct. 2025, 19:30 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Québec, QC, Canada
Offical URL: https://hfctf.ca/
Rating weight: 0.00
Event organizers: Hackfest.ca

Name: LINE CTF 2025 (an LINE CTF event.)
Date: Oct. 18, 2025, midnight — 19 Oct. 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://linectf.me/
Rating weight: 66.50
Event organizers: LINE CTF

Name: HITCON Cyber Range 2025 Final (an HITCON Cyber Range event.)
Date: Oct. 17, 2025, 1 a.m. — 17 Oct. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Taipei, Taiwan
Offical URL: https://hitcon.kktix.cc/events/hitcon-cyberrange-2025
Rating weight: 0.00
Event organizers: HITCON

Name: DEF CON CTF 2025 (an DEF CON CTF event.)
Date: Aug. 8, 2025, 4 p.m. — 10 Aug. 2025, 19:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: United States, Las Vegas
Offical URL: https://nautilus.institute/
Rating weight: 100.00
Event organizers: Nautilus Institute

Name: POC CTF Qualification 2025 (an Power Of Community - POC CTF event.)
Date: Oct. 12, 2025, 10 a.m. — 13 Oct. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://powerofcommunity.net/2025/ctf.html
Rating weight: 0
Event organizers: SAFCSP

Name: EnigmaXplore 3.0 (an EnigmaXplore event.)
Date: Oct. 10, 2025, 12:30 p.m. — 11 Oct. 2025, 00:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://enigmaxplore.ctfd.io/
Rating weight: 24.58
Event organizers: Crispr_iiitn

Name: Standoff Cyberbattle 16 (an Standoff Cyberbattle event.)
Date: Oct. 6, 2025, 6 a.m. — 08 Oct. 2025, 15:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://16.standoff365.com/en/
Rating weight: 0.00
Event organizers: STANDOFF 365

Name: jailCTF 2025 (an jailCTF event.)
Date: Oct. 3, 2025, 8 p.m. — 06 Oct. 2025, 20:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.pyjail.club/
Rating weight: 24.88
Event organizers: jailctf

Name: openECSC 2025 (an x3ctf event.)
Date: Sept. 29, 2025, 6 p.m. — 05 Oct. 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://openec.sc/
Rating weight: 0
Event organizers: x3CTF

Name: Securinets CTF Quals 2025 (an Securinets CTF event.)
Date: Oct. 4, 2025, 1 p.m. — 05 Oct. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://quals.securinets.tn/
Rating weight: 70.50
Event organizers: Securinets

Name: COMPFEST CTF 2025 (an COMPFEST CTF event.)
Date: Oct. 4, 2025, 2 a.m. — 05 Oct. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://compfest.id/
Rating weight: 64.00
Event organizers: CSUI

Name: CRAC CTF - Cloud and IAM CTF (an CRAC CTFs event.)
Date: Oct. 4, 2025, 8:30 a.m. — 04 Oct. 2025, 11:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Delhi, India
Offical URL: https://defhawk.com/battleground/raid/cloud-and-iam-ctf
Rating weight: 0.00
Event organizers: h4wk

Name: WMCTF2025 (an WMCTF event.)
Date: Sept. 20, 2025, 2 a.m. — 21 Sept. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://wmctf.wm-team.cn/
Rating weight: 80.00
Event organizers: W&M

Name: ATLA Opening Date CTF (an ATLA Opening Date CTF event.)
Date: Sept. 20, 2025, 5 a.m. — 20 Sept. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Kyrgyzstan, Bishkek
Offical URL: https://ctf.atlabyte.com/
Rating weight: 0
Event organizers: ATLA CTF