CTF Time

Name: Alfa CTF 2026 (an Alfa CTF event.)
Date: April 25, 2026, 6 a.m. — 25 April 2026, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://alfactf.ru/
Rating weight: 21.67
Event organizers: SPbCTF

Name: CTF@AC26 - Quals (an CTF@AC event.)
Date: April 25, 2026, 7 a.m. — 26 April 2026, 07:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.ac.upt.ro/
Rating weight: 24.53
Event organizers: UPT-CTF

Name: HACKTHEON SEJONG 2026 Qualifier (an HACKTHEON SEJONG event.)
Date: April 25, 2026, 1 a.m. — 25 April 2026, 08:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Sejong
Offical URL: https://hacktheon.org/
Rating weight: 0
Event organizers: Sejong City Hall

Name: CTF@CIT 2026 (an CTF@CIT event.)
Date: April 17, 2026, 4 p.m. — 19 April 2026, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.cyber-cit.club/
Rating weight: 23.93
Event organizers: HACK@CIT

Name: b01lers CTF 2026 (an b01lers CTF event.)
Date: April 18, 2026, midnight — 20 April 2026, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://b01lersc.tf/
Rating weight: 66.00
Event organizers: b01lers

Name: K!nd4SUS CTF 2026 (an K!nd4SUS CTF event.)
Date: April 18, 2026, noon — 19 April 2026, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.k1nd4sus.it/
Rating weight: 18.70
Event organizers: K!nd4SUS

Name: JerseyCTF VI (an JerseyCTF event.)
Date: April 18, 2026, 7 p.m. — 19 April 2026, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Newark, NJ, United States
Offical URL: https://ctf.jerseyctf.com/
Rating weight: 37.00
Event organizers: Highlander Hackers

Name: CPCTF 2026 (an CPCTF event.)
Date: April 17, 2026, 11 a.m. — 19 April 2026, 11:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://cpctf.space/
Rating weight: 0
Event organizers: traP

Name: BlueHens CTF 2026 (an BlueHens CTF event.)
Date: April 17, 2026, 5 p.m. — 19 April 2026, 05:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://bluehens.ctfd.io/
Rating weight: 44.77
Event organizers: Blue Hens

Name: squ1rrel CTF 2026 (an squ1rrel CTF event.)
Date: April 17, 2026, 11 p.m. — 19 April 2026, 06:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.squ1rrel.dev/
Rating weight: 32.47
Event organizers: squ1rrel

Name: pingCTF 2026 (an pingCTF event.)
Date: April 18, 2026, 10 a.m. — 19 April 2026, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: http://ctf.knping.pl/
Rating weight: 46.20
Event organizers: <script>alert("Ping")</script>

Name: HiveCTF (an HiveCTF event.)
Date: April 18, 2026, 3 p.m. — 18 April 2026, 23:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://mctf.io/hivectf
Rating weight: 25.00
Event organizers: DSU CTF Club

Name: WRECKCTF 2026 (an WRECKCTF event.)
Date: April 17, 2026, 4 a.m. — 18 April 2026, 04:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: http://wreckctf.com/
Rating weight: 0.00
Event organizers: Mad H@tters

Name: ZeroSecure CTF 2026 (an ZeroSecure CTF event.)
Date: April 17, 2026, 5:30 a.m. — 18 April 2026, 05:30 UTC  [add to calendar]
Format: Jeopardy
On-site
Offical URL: https://www.zerosecurectf.online/
Rating weight: 0.00
Event organizers: CLIENT - ZERO

Name: 47CON CTF 2026 (an 47CON CTF event.)
Date: April 17, 2026, 8 a.m. — 18 April 2026, 08:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Valladolid (Spain)
Offical URL: https://sugusuva.es/ctfd/
Rating weight: 0
Event organizers: SUGUS

Name: MIPT CTF Finals 2026 (an MIPT CTF event.)
Date: April 5, 2026, 7 a.m. — 05 April 2026, 14:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Russia, Dolgoprudny, MIPT
Offical URL: https://miptctf.ru/
Rating weight: 0.00
Event organizers: L0stAx3s

Name: Incognito 7.0 (an INCOGNITO event.)
Date: April 14, 2026, midnight — 15 April 2026, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://incognito.axiosiiitl.dev/
Rating weight: 16.56
Event organizers: Byt3Scr4pp3rs

Name: UMassCTF 2026 (an UMassCTF event.)
Date: April 10, 2026, 10 p.m. — 12 April 2026, 22:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.umasscybersec.org/
Rating weight: 65.95
Event organizers: SavedByTheShell

Name: DawgCTF 2026 (an DawgCTF event.)
Date: April 10, 2026, 4 p.m. — 12 April 2026, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://metactf.com/join/dawgctf26
Rating weight: 66.64
Event organizers: UMBC Cyber Dawgs

Name: PUTCyberDays CTF 2026 (an PUTCyberDays CTF event.)
Date: April 11, 2026, 10 a.m. — 12 April 2026, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://putcyberdays.pl/en/
Rating weight: 24.94
Event organizers: PUTrequest