CTF Time

Name: UMDCTF 2025 (an UMDCTF event.)
Date: April 25, 2025, 10 p.m. — 27 April 2025, 22:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://umdctf.io/
Rating weight: 70.86
Event organizers: UMDCSEC

Name: BSidesSF 2025 CTF (an BSidesSF CTF event.)
Date: April 25, 2025, 11 p.m. — 27 April 2025, 23:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: San Francisco, CA
Offical URL: https://ctf.bsidessf.net/
Rating weight: 25.00
Event organizers: BSidesSF

Name: Azure Assassin Alliance CTF 2025 (an Azure Assassin Alliance CTF event.)
Date: April 26, 2025, 1 a.m. — 27 April 2025, 01:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://actf2025.xctf.org.cn/
Rating weight: 35.00
Event organizers: 欸欸欸

Name: HACKTHEON SEJONG 2025 Preliminaries (an HACKTHEON SEJONG event.)
Date: April 26, 2025, midnight — 26 April 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://hacktheon.org/
Rating weight: 0.00
Event organizers: Sejong City Hall

Name: SpartanCTF 2025 (an SpartanCTF event.)
Date: March 28, 2025, 9 p.m. — 30 March 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://spartan.ctfd.io/
Rating weight: 0.00
Event organizers: Zero Day Club

Name: HackPack CTF 2025 (an HackPack CTF event.)
Date: April 18, 2025, 4 p.m. — 19 April 2025, 15:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://hackpack.club/ctf2025/
Rating weight: 0.00
Event organizers: hackpack

Name: THJCC CTF 2025 (an THJCC CTF event.)
Date: April 19, 2025, midnight — 20 April 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.scint.org/
Rating weight: 25.00
Event organizers: CakeisTheFake

Name: WSUCTF25 (an WSUCTF event.)
Date: April 19, 2025, 1 p.m. — 19 April 2025, 20:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://waynestateuniversity-ctf.ctfd.io/
Rating weight: 0.00
Event organizers: WayneStateCyber

Name: UMassCTF 2025 (an UMassCTF event.)
Date: April 18, 2025, 6 p.m. — 21 April 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.umasscybersec.org/
Rating weight: 48.38
Event organizers: SavedByTheShell

Name: b01lers CTF 2025 (an b01lers CTF event.)
Date: April 18, 2025, 11 p.m. — 20 April 2025, 23:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://b01lersc.tf/
Rating weight: 44.50
Event organizers: b01lers

Name: CPCTF 2025 (an CPCTF event.)
Date: April 18, 2025, 11 a.m. — 20 April 2025, 11:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://cpctf.space/
Rating weight: 0
Event organizers: traP

Name: DawgCTF 2025 (an DawgCTF event.)
Date: April 18, 2025, noon — 20 April 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://metactf.com/join/dawgctf25
Rating weight: 69.00
Event organizers: UMBC Cyber Dawgs

Name: T-CTF 2025 (an T-CTF event.)
Date: April 19, 2025, 6 a.m. — 20 April 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://t-ctf.ru/
Rating weight: 24.60
Event organizers: SPbCTF

Name: 2025 Embedded Capture the Flag (an MITRE eCTF event.)
Date: Jan. 15, 2025, 5 p.m. — 16 April 2025, 16:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://ectf.mitre.org/
Rating weight: 0
Event organizers: ectfmitre

Name: DEF CON CTF Qualifier 2025 (an DEF CON CTF Qualifier event.)
Date: April 12, 2025, midnight — 14 April 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://nautilus.institute/
Rating weight: 69.44
Event organizers: Nautilus Institute

Name: Texas Security Awareness Week 2025 (an TexSAW event.)
Date: April 11, 2025, 7 p.m. — 13 April 2025, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.texsaw.org/
Rating weight: 31.00
Event organizers: CSG

Name: Midnight Flag CTF - INSURRECTION (an Midnight Flag CTF - INSURRECTION event.)
Date: April 12, 2025, 8 a.m. — 13 April 2025, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Offical URL: https://midnightflag.fr/
Rating weight: 24.50
Event organizers: Midnight Flag - INFEKTION

Name: THCon 2K25 CTF (an THCon CTF event.)
Date: April 12, 2025, 8 a.m. — 13 April 2025, 08:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://thcon.party/
Rating weight: 23.65
Event organizers: FirewallFoxes pony7

Name: SummitCTF 2025 (an SummitCTF 2025 event.)
Date: April 12, 2025, 2 p.m. — 13 April 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://summitctf.org/
Rating weight: 0.00
Event organizers: CyberVT

Name: 1753CTF 2025 (an 1753CTF event.)
Date: April 11, 2025, 5 p.m. — 12 April 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://1753ctf.com/
Rating weight: 34.82
Event organizers: 1753c