CTF Time

Name: CyberSci Regional Qualifiers 2025-26 (an CyberSci event.)
Date: Nov. 22, 2025, 3 p.m. — 22 Nov. 2025, 22:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Onsite at 6 locations in Canada
Offical URL: https://cybersecuritychallenge.ca/
Rating weight: 25.00
Event organizers: CyberSciOrganizers

Name: CTFZone 2025 Final (an CTFZone event.)
Date: Nov. 22, 2025, 9 a.m. — 22 Nov. 2025, 17:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://ctfz.zone/
Rating weight: 96.90
Event organizers: BIZone

Name: Hardwear.io NL 2025 Hardware CTF (an Hardware CTF event.)
Date: Nov. 20, 2025, 9 a.m. — 21 Nov. 2025, 12:50 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: NL, Amsterdam
Offical URL: https://hwc.tf/
Rating weight: 0.00
Event organizers: Hardware CTF by Quarkslab

Name: MetaCTF November 2025 Flash CTF (an MetaCTF event.)
Date: Nov. 20, 2025, 10 p.m. — 21 Nov. 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://mctf.io/nov2025
Rating weight: 0
Event organizers: MetaCTF

Name: AmateursCTF 2025 (an AmateursCTF event.)
Date: Nov. 14, 2025, midnight — 18 Nov. 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.amateurs.team/
Rating weight: 35.56
Event organizers: les amateurs de la competition ctf

Name: Pointer Overflow CTF - 2025 (an Pointer Overflow CTF event.)
Date: Sept. 14, 2025, 2 p.m. — 16 Nov. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: https://pointeroverflowctf.com/
Offical URL: https://pointeroverflowctf.com/
Rating weight: 0
Event organizers: UWSP Pointers

Name: POC CTF Final 2025 (an Power Of Community - POC CTF event.)
Date: Nov. 13, 2025, 11 p.m. — 14 Nov. 2025, 06:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Four Seasons Hotel in Seoul, Korea
Offical URL: https://powerofcommunity.net/2025/ctf.html
Rating weight: 0
Event organizers: SAFCSP

Name: Guardians of the TI (an Guardians of the TI event.)
Date: Nov. 14, 2025, 9 a.m. — 14 Nov. 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: http://ctf.gematik.de/
Rating weight: 0.00
Event organizers: H34lthineer

Name: Layer7 CTF 2025 (an Layer7 CTF event.)
Date: Nov. 15, 2025, 1 a.m. — 16 Nov. 2025, 01:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.layer7.kr/
Rating weight: 0
Event organizers: Layer7 CTF

Name: RCTF 2025 (an RCTF event.)
Date: Nov. 15, 2025, 2 a.m. — 17 Nov. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://rctf2025.xctf.org.cn/
Rating weight: 41.75
Event organizers: ROIS

Name: TU Delft CTF 2025 (an TU Delft CTF event.)
Date: Nov. 15, 2025, 8 a.m. — 15 Nov. 2025, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: The Netherlands, Delft
Offical URL: https://ctf.ewi.tudelft.nl/?source=ctftime
Rating weight: 0.00
Event organizers: TU Delft CTF Team

Name: Platypwn 2025 (an Platypwn event.)
Date: Nov. 15, 2025, 9 a.m. — 16 Nov. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://platypwnies.de/events/platypwn/
Rating weight: 33.29
Event organizers: Platypwnies

Name: Crate-CTF 2025 (an Crate-CTF event.)
Date: Nov. 15, 2025, 1 p.m. — 15 Nov. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://foi.se/cratectf
Rating weight: 25.00
Event organizers: Crate-CTF

Name: PwnSec CTF 2025 (an PwnSec CTF event.)
Date: Nov. 15, 2025, 3 p.m. — 16 Nov. 2025, 15:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://pwnsec.ctf.ae/
Rating weight: 23.92
Event organizers: PwnSec

Name: M*CTF 2025 Quals (an M*CTF online event.)
Date: Nov. 16, 2025, 9 a.m. — 17 Nov. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://mctf.mtuci.ru/
Rating weight: 45.64
Event organizers: BinaryBears

Name: PermCTF 2025 (an PermCTF event.)
Date: Oct. 11, 2025, 4:30 a.m. — 11 Oct. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Russia, Perm
Offical URL: https://permctf2025.pstu.ru/
Rating weight: 0.00
Event organizers: E-Toolz

Name: QUESTCON CTF 2025 (an QUESTCON event.)
Date: Oct. 11, 2025, 9 a.m. — 12 Oct. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://discord.com/invite/JAavPpY95u
Rating weight: 26.50
Event organizers: OWASP_PCCOE-CORE

Name: GaianSpace CTF 2025 (an GaianSpace CTF event.)
Date: Oct. 13, 2025, 2 p.m. — 13 Oct. 2025, 14:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://gaian.space/ctf
Rating weight: 0.00
Event organizers: GaianSpace

Name: AltayCTF 2025 (an AltayCTF event.)
Date: Oct. 26, 2025, 10 a.m. — 26 Oct. 2025, 19:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Barnaul
Offical URL: https://university.altayctf.ru/2025
Rating weight: 25.00
Event organizers: SharLike

Name: CipherHunt 2.0 (an CipherHunt 2.0 event.)
Date: Oct. 28, 2025, 9:30 a.m. — 29 Oct. 2025, 14:30 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Chandigarh, India
Offical URL: https://cipherhunt.xyz/
Rating weight: 0.00
Event organizers: CypherLock