| Name | Date | Format | Location | Weight | Notes |
|---|
| 0CTF/TCTF 2021 Finals | 25 Sept., 02:00 UTC — 27 Sept. 2021, 02:00 UTC | Jeopardy |
On-line
| 95.00* | | missing the scoreboard |
| ChaffCTF 2021 | 24 Sept., 20:00 UTC — 26 Sept. 2021, 20:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| Sunshine CTF 2021 | 18 Sept., 14:00 UTC — 19 Sept. 2021, 14:00 UTC | Jeopardy |
On-line
| 23.34 | | |
| Trend Micro CTF 2021 - Raimund Genes Cup - Online Qualifier | 18 Sept., 04:00 UTC — 19 Sept. 2021, 04:00 UTC | Jeopardy |
On-line
| 10.33 | | |
| Overflow To Fall | 17 Sept., 22:00 UTC — 19 Sept. 2021, 22:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| PBjar CTF '21 | 17 Sept., 09:00 UTC — 19 Sept. 2021, 20:59 UTC | Jeopardy |
On-line
| 22.48 | | |
| H@cktivityCon 2021 CTF | 16 Sept., 20:30 UTC — 18 Sept. 2021, 20:30 UTC | Jeopardy |
On-line
| 24.98 | | |
| COMPFEST CTF 2021 | 12 Sept., 08:00 UTC — 13 Sept. 2021, 08:00 UTC | Jeopardy |
On-line
| 21.22 | | |
| TsukuCTF 2021 | 11 Sept., 03:00 UTC — 12 Sept. 2021, 02:59 UTC | Jeopardy |
On-line
| 0.00 | | |
| RCTF 2021 | 11 Sept., 01:00 UTC — 13 Sept. 2021, 01:00 UTC | Jeopardy |
On-line
| 69.20 | | |
| CSAW CTF Qualification Round 2021 | 10 Sept., 20:00 UTC — 12 Sept. 2021, 20:00 UTC | Jeopardy |
On-line
| 23.75 | | |
| TMUCTF 2021 | 08 Sept., 10:30 UTC — 10 Sept. 2021, 04:30 UTC | Jeopardy |
On-line
| 22.26 | | |
| GrabCON CTF 2021 | 04 Sept., 10:30 UTC — 05 Sept. 2021, 10:30 UTC | Jeopardy |
On-line
| 23.08 | | |
| ALLES! CTF 2021 | 03 Sept., 16:00 UTC — 05 Sept. 2021, 04:00 UTC | Jeopardy |
On-line
| 36.35 | | |
| WORMCON 0x01 | 28 Aug., 10:30 UTC — 29 Aug. 2021, 10:30 UTC | Jeopardy |
On-line
| 22.47 | | |
| WMCTF 2021 | 28 Aug., 01:00 UTC — 30 Aug. 2021, 01:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| FwordCTF 2021 | 27 Aug., 17:00 UTC — 29 Aug. 2021, 05:00 UTC | Jeopardy |
On-line
| 24.42 | | |
| YauzaCTF 2021 | 27 Aug., 12:00 UTC — 29 Aug. 2021, 12:00 UTC | Jeopardy |
On-line
| 21.73 | | |
| HITB SECCONF EDU CTF 2021 | 27 Aug., 10:00 UTC — 27 Aug. 2021, 21:00 UTC | Attack-Defense |
On-line
| 23.15 | | |
| corCTF 2021 | 21 Aug., 00:00 UTC — 23 Aug. 2021, 00:00 UTC | Jeopardy |
On-line
| 24.92 | | |
| Web-vkl CTF | 21 Aug., 00:00 UTC — 22 Aug. 2021, 00:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| Hacker's Playground 2021 | 16 Aug., 06:00 UTC — 17 Aug. 2021, 06:00 UTC | Jeopardy |
On-line
| 24.50 | | |
| Really Awesome CTF 2021 | 13 Aug., 19:00 UTC — 16 Aug. 2021, 19:00 UTC | Jeopardy |
On-line
| 23.49 | | |
| InCTF 2021 | 13 Aug., 13:30 UTC — 15 Aug. 2021, 13:30 UTC | Jeopardy |
On-line
| 70.41 | | |
| RCTS CERT 2021 Defending the SOC | 10 Aug., 13:00 UTC — 11 Aug. 2021, 13:00 UTC | Jeopardy |
On-line
| 23.45 | | |
| BSides Noida CTF | 07 Aug., 10:30 UTC — 08 Aug. 2021, 10:30 UTC | Jeopardy |
On-line
| 24.43 | | |
| RaRCTF 2021 | 06 Aug., 17:00 UTC — 09 Aug. 2021, 17:00 UTC | Jeopardy |
On-line
| 24.69 | | |
| RTLxHA CTF 21 | 31 July, 05:00 UTC — 01 Aug. 2021, 17:00 UTC | Jeopardy |
On-line
| 24.36 | | |
| UIUCTF 2021 | 31 July, 00:00 UTC — 02 Aug. 2021, 00:00 UTC | Jeopardy |
On-line
| 23.76 | | |
| Crypto CTF 2021 | 30 July, 16:00 UTC — 31 July 2021, 16:00 UTC | Jeopardy |
On-line
| 36.00 | | |
| CyBRICS CTF 2021 | 24 July, 10:00 UTC — 25 July 2021, 10:00 UTC | Jeopardy |
On-line
| 33.32 | | |
| IJCTF 2021 | 24 July, 07:30 UTC — 25 July 2021, 07:30 UTC | Jeopardy |
On-line
| 23.39 | | |
| ImaginaryCTF 2021 | 23 July, 16:00 UTC — 27 July 2021, 16:00 UTC | Jeopardy |
On-line
| 24.64 | | |
| HTB Business CTF 2021 | 23 July, 12:00 UTC — 25 July 2021, 18:00 UTC | Jeopardy |
On-line
| 24.33 | | |
| Securebug.se CTF Loki 2021 | 19 July, 14:00 UTC — 21 July 2021, 14:00 UTC | Jeopardy |
On-line
| 22.58 | | |
| BSidesTLV 2021 CTF | 19 July, 06:00 UTC — 21 July 2021, 06:00 UTC | Jeopardy |
On-line
| 21.38 | | |
| CyberSci Nationals 2021 | 17 July, 12:00 UTC — 18 July 2021, 16:00 UTC | Jeopardy |
On-line
| 0 | Academic teams only | |
| Google Capture The Flag 2021 | 17 July, 00:00 UTC — 18 July 2021, 23:59 UTC | Jeopardy |
On-line
| 99.22 | | |
| Lexington Informatics Tournament CTF 2021 | 16 July, 11:00 UTC — 18 July 2021, 23:59 UTC | Jeopardy |
On-line
| 24.40 | | |
| CSCML CTF 2021 | 14 July, 12:00 UTC — 21 July 2021, 12:00 UTC | Jeopardy |
On-line
| 0 | | missing the scoreboard |
| Securebug.se CTF 19 july | 12 July, 14:00 UTC — 14 July 2021, 14:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| TyphoonCon CTF 2021 | 12 July, 12:00 UTC — 15 July 2021, 12:00 UTC | Jeopardy |
On-line
| 22.00 | | |
| ENOWARS 5 | 10 July, 12:00 UTC — 10 July 2021, 22:00 UTC | Attack-Defense |
On-line
| 44.33 | | |
| redpwnCTF 2021 | 09 July, 19:00 UTC — 12 July 2021, 19:00 UTC | Jeopardy |
On-line
| 32.61 | | |
| Capture the Signal CTF 2021 | 09 July, 17:00 UTC — 10 July 2021, 20:00 UTC | Hack quest |
On-line
| 0.00 | | missing the scoreboard |
| Hospital Under Siege | 08 July, 15:00 UTC — 08 July 2021, 19:00 UTC | Hack quest |
On-line
| 0.00 | | missing the scoreboard |
| 0CTF/TCTF 2021 Quals | 03 July, 02:00 UTC — 05 July 2021, 02:00 UTC | Jeopardy |
On-line
| 86.71 | | |
| CyberThreatForce CTF | 2021 | 02 July, 22:00 UTC — 04 July 2021, 22:00 UTC | Jeopardy |
On-line
| 24.00 | | |
| Hacky Holidays - Space Race | 02 July, 10:00 UTC — 26 July 2021, 10:00 UTC | Jeopardy |
On-line
| 0 | | |
| Hack-A-Sat 2 Qualifiers | 26 June, 14:00 UTC — 27 June 2021, 20:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| CTFZone 2021 | 26 June, 10:00 UTC — 26 June 2021, 23:27 UTC | Attack-Defense |
On-line
| 90.00 | | |
| WeCTF 2021 | 19 June, 17:00 UTC — 20 June 2021, 17:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| CTF InterIUT 2021 | 18 June, 20:00 UTC — 19 June 2021, 23:59 UTC | Jeopardy |
On-line
| 0 | Academic teams only | |
| The Threat Interceptors Challenge | 14 June, 15:00 UTC — 16 June 2021, 15:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| HSCTF 8 | 14 June, 12:00 UTC — 19 June 2021, 00:00 UTC | Jeopardy |
On-line
| 24.50 | | |
| MCSC CTF 2021 | 12 June, 22:00 UTC — 13 June 2021, 10:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| FAUST CTF 2021 | 12 June, 13:00 UTC — 12 June 2021, 22:00 UTC | Attack-Defense |
On-line
| 100.00 | | |
| THC CTF 2021 | 12 June, 07:00 UTC — 13 June 2021, 14:00 UTC | Jeopardy |
On-line
| 24.00 | | |
| Circle City Con CTF 2021 | 11 June, 16:00 UTC — 13 June 2021, 19:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| BCACTF 2.0 | 11 June, 00:00 UTC — 14 June 2021, 00:00 UTC | Jeopardy |
On-line
| 24.42 | | |
| S.H.E.L.L. CTF | 05 June, 06:30 UTC — 07 June 2021, 06:30 UTC | Jeopardy |
On-line
| 23.76 | | |
| FreedomCTF Spring 2021 | 04 June, 11:59 UTC — 06 June 2021, 11:59 UTC | Jeopardy |
On-line
| 0 | School teams only | |
| Zh3r0 CTF V2 | 04 June, 10:30 UTC — 06 June 2021, 10:30 UTC | Jeopardy |
On-line
| 21.85 | | |
| wtfctf | 03 June, 00:00 UTC — 05 June 2021, 23:59 UTC | Jeopardy |
On-line
| 18.64 | | |
| ICHSA CTF 2021 | 31 May, 18:00 UTC — 02 June 2021, 17:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| Pwn2Win CTF 2021 | 28 May, 16:37 UTC — 30 May 2021, 16:37 UTC | Jeopardy |
On-line
| 83.41 | | |
| Securinets CTF Finals 2021 | 22 May, 10:00 UTC — 22 May 2021, 16:00 UTC | Jeopardy |
On-line
| 0.00 | Prequalified teams only | |
| NorthSec 2021 | 21 May, 23:30 UTC — 23 May 2021, 19:00 UTC | Hack quest |
On-line
| 24.00 | | |
| NorzhCTF 2021 | 21 May, 18:00 UTC — 23 May 2021, 18:00 UTC | Hack quest |
On-line
| 24.83 | | |
| 3kCTF-2021 | 15 May, 11:00 UTC — 16 May 2021, 17:00 UTC | Jeopardy |
On-line
| 24.14 | | |
| m0leCon CTF 2021 Teaser | 14 May, 17:00 UTC — 15 May 2021, 17:00 UTC | Jeopardy |
On-line
| 24.55 | | |
| DCTF 2021 | 14 May, 15:00 UTC — 16 May 2021, 21:59 UTC | Jeopardy |
On-line
| 24.15 | | |
| saarCTF 2021 | 08 May, 13:00 UTC — 08 May 2021, 22:00 UTC | Attack-Defense |
On-line
| 24.42 | | |
| PwnTillDawn Online Battlefield - Goodwill Edition 2021 | 08 May, 05:00 UTC — 09 May 2021, 05:00 UTC | Hack quest |
On-line
| 0.00 | | |
| San Diego CTF 2021 | 08 May, 00:00 UTC — 10 May 2021, 00:00 UTC | Jeopardy |
On-line
| 24.44 | | |
| DawgCTF 2021 | 07 May, 22:00 UTC — 08 May 2021, 22:00 UTC | Jeopardy |
On-line
| 23.29 | | |
| Hack Zone Tunisia 2021 | 01 May, 21:00 UTC — 02 May 2021, 09:00 UTC | Jeopardy |
On-line
| 48.96 | | missing the scoreboard |
| DEF CON CTF Qualifier 2021 | 01 May, 00:00 UTC — 03 May 2021, 00:00 UTC | Jeopardy |
On-line
| 80.92 | | |
| WPICTF 2021 | 23 April, 22:00 UTC — 25 April 2021, 22:00 UTC | Jeopardy |
On-line
| 36.40 | | |
| HeroCTF v3 | 23 April, 20:00 UTC — 25 April 2021, 22:00 UTC | Jeopardy |
On-line
| 24.21 | | |
| TAMUctf 2021 | 22 April, 23:00 UTC — 25 April 2021, 23:00 UTC | Jeopardy |
On-line
| 24.92 | | |
| S4CTF 2021 | 22 April, 17:30 UTC — 24 April 2021, 17:30 UTC | Jeopardy |
On-line
| 24.56 | | |
| Securebug.se CTF Odin 2021 | 20 April, 14:00 UTC — 22 April 2021, 14:00 UTC | Jeopardy |
On-line
| 17.90 | | |
| Cyber Apocalypse 2021 | 19 April, 12:00 UTC — 23 April 2021, 18:00 UTC | Jeopardy |
On-line
| 24.33 | | |
| Bambi CTF #5 | 17 April, 10:00 UTC — 17 April 2021, 16:00 UTC | Attack-Defense |
On-line
| 24.50 | | |
| Great Lakes Security Conference CTF | 16 April, 22:00 UTC — 19 April 2021, 22:00 UTC | Jeopardy |
On-line
| 24.60 | | |
| PlaidCTF 2021 | 16 April, 21:00 UTC — 18 April 2021, 21:00 UTC | Jeopardy |
On-line
| 99.64 | | |
| UMDCTF 2021 | 16 April, 21:00 UTC — 18 April 2021, 21:00 UTC | Jeopardy |
On-line
| 24.02 | | |
| Incognito 2.0 | 16 April, 18:30 UTC — 18 April 2021, 12:30 UTC | Jeopardy |
On-line
| 20.75 | | |
| HackPack CTF 2021 | 16 April, 15:00 UTC — 17 April 2021, 15:00 UTC | Jeopardy |
On-line
| 24.31 | | |
| _EVENT CHANGED_ | 16 April, 14:00 UTC — 16 April 2021, 22:00 UTC | Jeopardy |
On-line
| 24.31 | | missing the scoreboard |
| MidnightFlag CTF | 10 April, 22:00 UTC — 11 April 2021, 06:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| Midnight Sun CTF 2021 Quals | 09 April, 17:00 UTC — 10 April 2021, 17:00 UTC | Jeopardy |
On-line
| 50.32 | | |
| RITSEC CTF 2021 | 09 April, 16:00 UTC — 11 April 2021, 16:00 UTC | Jeopardy |
On-line
| 26.81 | | |
| Pragyan CTF 2021 | 08 April, 00:00 UTC — 09 April 2021, 23:59 UTC | Jeopardy |
On-line
| 11.91 | | |
| b01lers CTF | 03 April, 22:00 UTC — 05 April 2021, 22:00 UTC | Jeopardy |
On-line
| 22.99 | | |
| Shakti CTF | 03 April, 06:30 UTC — 04 April 2021, 18:30 UTC | Jeopardy |
On-line
| 25.00 | | missing the scoreboard |
| ångstromCTF 2021 | 03 April, 00:00 UTC — 07 April 2021, 23:59 UTC | Jeopardy |
On-line
| 46.09 | | |
| ImaginaryCTF | 01 April, 16:00 UTC — 30 April 2021, 16:00 UTC | Jeopardy |
On-line
| 0 | | missing the scoreboard |
| ALLES! CTF 2021 HW Edition | 01 April, 15:00 UTC — 01 April 2021, 23:00 UTC | Attack-Defense |
On-line
| 36.35 | | missing the scoreboard |
| X-MAS GTF 2021 | 01 April, 00:00 UTC — 02 April 2021, 00:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| FooBar CTF 2021 | 31 March, 18:30 UTC — 01 April 2021, 18:30 UTC | Jeopardy |
On-line
| 21.54 | | |
| VolgaCTF 2021 Qualifier | 27 March, 14:00 UTC — 28 March 2021, 14:00 UTC | Jeopardy |
On-line
| 32.73 | | |
| CS166 x FSAB CTF 2021 | 27 March, 00:00 UTC — 28 March 2021, 00:00 UTC | Jeopardy |
On-line
| 0 | Academic teams only | |
| UMassCTF 2021 | 26 March, 22:00 UTC — 28 March 2021, 22:00 UTC | Jeopardy |
On-line
| 23.50 | | |
| SPRUSH CTF Quals 2021 | 21 March, 07:00 UTC — 21 March 2021, 21:00 UTC | Jeopardy |
On-line
| 22.25 | | |
| Securinets CTF Quals 2021 | 20 March, 17:00 UTC — 21 March 2021, 17:00 UTC | Jeopardy |
On-line
| 41.71 | | |
| PoseidonCTF 2nd Edition **cancelled** | 20 March, 13:37 UTC — 22 March 2021, 01:37 UTC | Jeopardy |
On-line
| 24.78 | | missing the scoreboard |
| LINE CTF 2021 | 20 March, 00:00 UTC — 21 March 2021, 00:00 UTC | Jeopardy |
On-line
| 23.68 | | |
| BlueHens CTF 2021 | 19 March, 18:00 UTC — 21 March 2021, 18:00 UTC | Jeopardy |
On-line
| 22.62 | | |
| Codefest CTF 2020 | 19 March, 12:30 UTC — 20 March 2021, 12:30 UTC | Jeopardy |
On-line
| 33.97 | | |
| picoCTF 2021 | 16 March, 17:00 UTC — 30 March 2021, 20:00 UTC | Jeopardy |
On-line
| 0 | School teams only | missing the scoreboard |
| vishwaCTF 2021 | 13 March, 10:00 UTC — 14 March 2021, 22:00 UTC | Jeopardy |
On-line
| 20.62 | | |
| BCA CTF 2021 | 13 March, 10:00 UTC — 13 March 2021, 17:15 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| UTCTF 2021 | 13 March, 00:00 UTC — 15 March 2021, 00:00 UTC | Jeopardy |
On-line
| 34.11 | | |
| NahamCon CTF 2021 | 12 March, 20:00 UTC — 14 March 2021, 20:00 UTC | Jeopardy |
On-line
| 24.98 | | |
| DaVinciCTF 2021 | 12 March, 16:00 UTC — 14 March 2021, 16:00 UTC | Jeopardy |
On-line
| 24.52 | | |
| White-Hats Break the Syntax CTF | 12 March, 15:00 UTC — 14 March 2021, 15:00 UTC | Jeopardy |
On-line
| 23.36 | | |
| BSidesSF 2021 CTF | 06 March, 20:00 UTC — 08 March 2021, 22:00 UTC | Jeopardy |
On-line
| 23.94 | | |
| zer0pts CTF 2021 | 06 March, 00:00 UTC — 07 March 2021, 12:00 UTC | Jeopardy |
On-line
| 24.56 | | |
| Winja CTF | 06 March, 00:00 UTC — 06 March 2021, 13:00 UTC | Hack quest |
On-line
| 23.50 | | |
| HTB University CTF 2021 Finals | 05 March, 13:00 UTC — 06 March 2021, 13:00 UTC | Jeopardy |
On-line
| 24.33 | | |
| D^3CTF 2021 | 05 March, 12:00 UTC — 07 March 2021, 12:00 UTC | Jeopardy |
On-line
| 20.00 | | |
| Aero CTF 2021 | 27 Feb., 09:00 UTC — 28 Feb. 2021, 09:00 UTC | Jeopardy |
On-line
| 35.17 | | |
| Ugra CTF Quals 2021 | 27 Feb., 07:00 UTC — 28 Feb. 2021, 19:00 UTC | Jeopardy |
On-line
| 24.55 | | |
| darkCON CTF | 20 Feb., 10:30 UTC — 21 Feb. 2021, 10:30 UTC | Jeopardy |
On-line
| 24.06 | | |
| Union CTF 2021 | 19 Feb., 19:00 UTC — 21 Feb. 2021, 19:00 UTC | Jeopardy |
On-line
| 24.31 | | |
| Tenable CTF 2021 | 18 Feb., 12:00 UTC — 22 Feb. 2021, 12:00 UTC | Jeopardy |
On-line
| 22.65 | | |
| SecureBug CTF | 15 Feb., 11:00 UTC — 18 Feb. 2021, 11:00 UTC | Jeopardy |
On-line
| 20.63 | | |
| GunnHacks 7.0 | 13 Feb., 14:00 UTC — 14 Feb. 2021, 06:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| Cohesion 2021 | 07 Feb., 09:26 UTC — 07 Feb. 2021, 18:26 UTC | Jeopardy |
On-line
| 0.00 | | |
| TrollCAT CTF 2021 | 06 Feb., 04:30 UTC — 06 Feb. 2021, 16:30 UTC | Jeopardy |
On-line
| 21.79 | | |
| DiceCTF 2021 | 06 Feb., 00:00 UTC — 08 Feb. 2021, 00:00 UTC | Jeopardy |
On-line
| 24.82 | | |
| Paradigm CTF 2021 | 05 Feb., 22:00 UTC — 07 Feb. 2021, 22:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| justCTF [*] 2020 | 30 Jan., 06:00 UTC — 31 Jan. 2021, 19:00 UTC | Jeopardy |
On-line
| 24.85 | | |
| Shadow CTF | 26 Jan., 00:00 UTC — 27 Jan. 2021, 00:00 UTC | Jeopardy |
On-line
| 0.00 | | missing the scoreboard |
| 0x41414141 CTF | 23 Jan., 17:00 UTC — 30 Jan. 2021, 17:00 UTC | Jeopardy |
On-line
| 0 | | |
| Cyber Grabs CTF 0x02 | 17 Jan., 04:30 UTC — 17 Jan. 2021, 10:30 UTC | Jeopardy |
On-line
| 18.69 | | |
| BambooFox CTF 2021 | 16 Jan., 02:00 UTC — 18 Jan. 2021, 02:00 UTC | Jeopardy |
On-line
| 24.16 | | |
| *CTF 2021 | 16 Jan., 01:00 UTC — 18 Jan. 2021, 01:00 UTC | Jeopardy |
On-line
| 25.00 | | |
| ISFCR Hackathon 2021 | 15 Jan., 05:30 UTC — 17 Jan. 2021, 05:30 UTC | Jeopardy |
On-line
| 0.00 | | |
| Real World CTF 3rd | 09 Jan., 02:00 UTC — 11 Jan. 2021, 02:00 UTC | Jeopardy |
On-line
| 37.00 | | |
| HAC-SEC 21' | 04 Jan., 04:00 UTC — 05 Jan. 2021, 04:00 UTC | Jeopardy |
On-line
| 22.35 | | missing the scoreboard |
| Global CyberPeace Challenge 2.0 CTF-IT | 03 Jan., 03:30 UTC — 15 Jan. 2021, 18:30 UTC | Jeopardy |
On-line
| 0 | | missing the scoreboard |
| TetCTF 2021 | 01 Jan., 00:00 UTC — 03 Jan. 2021, 00:00 UTC | Jeopardy |
On-line
| 25.00 | | |
