CTF Time

Name: NNS CTF 2025 (an NNS CTF event.)
Date: Aug. 29, 2025, 4 p.m. — 31 Aug. 2025, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://nnsc.tf/
Rating weight: 25.00
Event organizers: Norske Nøkkelsnikere

Name: snakeCTF 2025 Quals (an snakeCTF event.)
Date: Aug. 29, 2025, 5 p.m. — 30 Aug. 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://2025.snakectf.org/
Rating weight: 36.65
Event organizers: MadrHacks

Name: Lexington Informatics Tournament CTF 2025 (an LIT CTF event.)
Date: Aug. 23, 2025, 3 p.m. — 25 Aug. 2025, 15:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://lit.lhsmathcs.org/
Rating weight: 67.32
Event organizers: LIT CTF

Name: BrunnerCTF 2025 (an BrunnerCTF event.)
Date: Aug. 22, 2025, noon — 24 Aug. 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.brunnerne.dk/
Rating weight: 24.63
Event organizers: SDU

Name: HITCON CTF 2025 (an HITCON CTF event.)
Date: Aug. 22, 2025, 2 p.m. — 24 Aug. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf2025.hitcon.org/
Rating weight: 100.00
Event organizers: HITCON

Name: PECAN+ CTF 2025 (an PECAN+ CTF event.)
Date: Aug. 24, 2025, 1 a.m. — 24 Aug. 2025, 05:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Australia
Offical URL: https://pecanplus.org/
Rating weight: 0.00
Event organizers: PECAN+

Name: Sawah Cyber Security CTF 2025 (an Sawah Cyber Security CTF event.)
Date: Aug. 23, 2025, 5 a.m. — 23 Aug. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Indonesia, Bali
Offical URL: https://ctf.sawahcyber.id/
Rating weight: 0
Event organizers: Sawah Cyber Security

Name: KubanCTF Qualifier 2025 (an HackerLab event.)
Date: Aug. 23, 2025, 7 a.m. — 23 Aug. 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://kubanctf2025.ru/
Rating weight: 0.00
Event organizers: Codeby Games

Name: [POSTPONED]RCTF 2025 (an RCTF event.)
Date: Aug. 20, 2025, 10 a.m. — 22 Aug. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://rctf.rois.io/
Rating weight: 0.00
Event organizers: ROIS

Name: CRHC CTF 2025 (an CRHCCTF event.)
Date: Aug. 16, 2025, 9 a.m. — 18 Aug. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctfd.crhc.club/
Rating weight: 0
Event organizers: CRHC-CTF

Name: scriptCTF 2025 (an scriptCTF event.)
Date: Aug. 16, 2025, midnight — 18 Aug. 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.scriptsorcerers.xyz/
Rating weight: 24.68
Event organizers: ScriptSorcerers

Name: SekaiCTF 2025 (an SekaiCTF event.)
Date: Aug. 16, 2025, 1 a.m. — 18 Aug. 2025, 01:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.sekai.team/
Rating weight: 55.00
Event organizers: Project Sekai

Name: CTFZone 2025 Quals (an CTFZone event.)
Date: Aug. 16, 2025, 10 a.m. — 17 Aug. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://board.ctfz.zone/
Rating weight: 92.45
Event organizers: BIZone

Name: WHY2025 CTF (an WHY2025 CTF event.)
Date: Aug. 8, 2025, 4 p.m. — 11 Aug. 2025, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.why2025.org/
Rating weight: 0.00
Event organizers: Eindbazen

Name: Startpwn CTF 2025 (an Starpwn CTF event.)
Date: Aug. 8, 2025, 4 p.m. — 09 Aug. 2025, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://app.metactf.com/starpwn-2025
Rating weight: 24.62
Event organizers: Visionspace

Name: PH03N1X V1P3R N0V4 CTF (an PH03N1X V1P3R N0V4 CTF event.)
Date: Aug. 2, 2025, 7:56 a.m. — 02 Aug. 2025, 07:56 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Timisoara, Romania
Offical URL: http://platform.pwnctf.ro/
Rating weight: 0.00
Event organizers: PH03N1X V1P3R N0V4 CTF

Name: idekCTF 2025 (an idekCTF event.)
Date: Aug. 2, 2025, 8 a.m. — 04 Aug. 2025, 08:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.idek.team/
Rating weight: 52.06
Event organizers: idek

Name: justCTF 2025 (an justCTF event.)
Date: Aug. 2, 2025, 6 a.m. — 03 Aug. 2025, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: http://2025.justctf.team/
Rating weight: 97.20
Event organizers: justCatTheFish

Name: World Wide CTF 2025 (an World Wide CTF event.)
Date: July 26, 2025, noon — 28 July 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://wwctf.com/
Rating weight: 24.48
Event organizers: World Wide Flags

Name: UIUCTF 2025 (an UIUCTF event.)
Date: July 26, 2025, midnight — 28 July 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://2025.uiuc.tf/
Rating weight: 91.43
Event organizers: SIGPwny