All users which currently have 100% on a site.
| Username | Site | First Track | Master since | Track-Time | From | |
|---|---|---|---|---|---|---|
 | ctz_hermit | SuNiNaTaS | May 08, 2013 - 07:22:34 | Aug 08, 2016 - 11:32:29 | 3y 93d | 1,71% |
| ctrlisk | LordofSQLi | Jul 18, 2024 - 19:57:30 | Oct 07, 2024 - 08:39:21 | 80d 12h | 83,67% |
| ctrlisk | Webhacking.kr | Jul 16, 2024 - 20:47:37 | Jul 16, 2024 - 20:47:37 | 0s | 100,00% |
 | criple_ripper | hax.tor.hu | May 26, 2009 - 01:18:56 | Jan 06, 2021 - 16:38:33 | 11y 228d | 14,00% |
 | Creastery | IRISSCON 2012 Lost Challenges | Sep 25, 2013 - 07:30:38 | Mar 25, 2014 - 09:25:18 | 181d 1h | 2,92% |
| Creastery | LordofSQLi | Jul 30, 2019 - 20:05:42 | Jul 30, 2019 - 20:05:42 | 0s | 100,00% |
| cr3denza | SuNiNaTaS | Sep 10, 2014 - 06:18:20 | Oct 13, 2014 - 01:18:29 | 32d 19h | 1,49% |
 | cpupower | RedTigers Hackit | Oct 08, 2017 - 18:55:37 | Mar 18, 2018 - 13:17:26 | 160d 18h | 0,00% |
| codpot | SuNiNaTaS | Sep 04, 2013 - 12:15:57 | Dec 01, 2014 - 01:59:17 | 1y 87d | 0,00% |
 | Cobruto | hax.tor.hu | Jun 13, 2009 - 11:35:31 | Aug 22, 2016 - 00:16:45 | 7y 71d | 2,00% |
| Cobruto | listbrain.tk | Jan 24, 2010 - 18:14:53 | Jan 24, 2010 - 18:14:53 | 0s | 100,00% |
 | cls | IRISSCON 2012 Lost Challenges | Aug 19, 2014 - 23:09:52 | Sep 04, 2014 - 21:51:43 | 15d 22h | 56,20% |
| cls | RedTigers Hackit | Aug 27, 2014 - 16:49:27 | Aug 27, 2014 - 16:49:27 | 0s | 100,00% |
| cls | SuNiNaTaS | Jan 07, 2013 - 14:04:15 | Mar 12, 2025 - 19:46:01 | 12y 67d | 14,30% |
 | chuckstudios | hax.tor.hu | Jul 28, 2009 - 09:09:27 | Jul 28, 2009 - 09:09:27 | 0s | 100,00% |
 | chrysoberyl | RedTigers Hackit | Mar 16, 2021 - 00:53:13 | Mar 16, 2021 - 01:04:15 | 11m 2s | 0,00% |
| christrc | Root-Me | Jul 07, 2016 - 17:25:31 | Jul 07, 2016 - 17:25:31 | 0s | 100,00% |
| choiys | RedTigers Hackit | Oct 18, 2016 - 14:25:43 | Nov 07, 2017 - 11:48:39 | 1y 19d | 0,00% |
| choiyd | CTFS.ME | Jan 22, 2018 - 18:45:36 | Mar 13, 2018 - 15:14:59 | 49d 20h | 0,00% |
| choiyd | RedTigers Hackit | Jan 29, 2018 - 16:56:12 | Jan 30, 2018 - 06:07:10 | 13h 10m | 2,17% |
| choiyd | SolveMe | Jan 06, 2018 - 03:38:55 | Jan 28, 2018 - 09:24:56 | 22d 5h | 27,86% |
 | CHItA | Gekko | Mar 20, 2011 - 13:31:23 | Dec 25, 2017 - 19:49:22 | 6y 282d | 51,43% |
| CHItA | hax.tor.hu | Nov 14, 2010 - 17:27:45 | Apr 30, 2016 - 12:23:04 | 5y 168d | 42,00% |
| CHItA | RedTigers Hackit | Oct 15, 2014 - 21:26:27 | Oct 02, 2021 - 15:46:57 | 6y 353d | 5,42% |
| chinarulezzz | hax.tor.hu | Jan 18, 2021 - 15:35:05 | Jan 18, 2021 - 15:35:05 | 0s | 100,00% |
| chinarulezzz | LordofSQLi | Jan 18, 2021 - 15:48:29 | Mar 19, 2021 - 10:41:48 | 59d 18h | 4,08% |
| Cheetar | RedTigers Hackit | May 29, 2017 - 12:02:30 | Jun 12, 2017 - 20:02:36 | 14d 8h | 0,00% |
 | cheerfulbull | +Ma's Reversing | Oct 09, 2023 - 07:11:29 | Dec 09, 2024 - 23:04:50 | 1y 62d | 7,14% |
| cheerfulbull | ae27ff | Aug 24, 2023 - 03:51:38 | Jul 05, 2024 - 06:41:42 | 316d 2h | 10,64% |
| cheerfulbull | Defend the Web | Jul 27, 2023 - 07:05:13 | Jan 30, 2024 - 07:22:48 | 187d 17m | 82,53% |
| cheerfulbull | Hack The Web | Feb 21, 2025 - 04:26:59 | Feb 26, 2025 - 04:52:47 | 5d 25m | 89,84% |
| cheerfulbull | RedTigers Hackit | Sep 20, 2023 - 01:19:21 | Jan 31, 2024 - 04:44:26 | 133d 3h | 5,42% |
| cheerfulbull | SuNiNaTaS | Nov 28, 2023 - 07:11:25 | Dec 01, 2024 - 05:16:11 | 1y 3d | 4,14% |
| cheerfulbull | try to decrypt | Sep 14, 2023 - 05:03:53 | Nov 29, 2023 - 23:03:36 | 76d 17h | 7,14% |
| cheerfulbull | Webhacking.kr | Apr 19, 2024 - 10:30:07 | Apr 19, 2024 - 10:30:07 | 0s | 100,00% |
| cheerfulbull | Yoire | Jun 19, 2026 - 01:28:26 | Jun 21, 2026 - 22:56:45 | 2d 21h | 99,75% |
| cheapcode | SuNiNaTaS | Oct 03, 2012 - 04:02:29 | Jan 20, 2013 - 12:29:41 | 109d 8h | 86,85% |
 | Charo | pwnable.tw | Jun 06, 2017 - 01:37:54 | Aug 01, 2017 - 09:39:31 | 56d 8h | 82,22% |
| Charizard | SuNiNaTaS | Sep 08, 2014 - 06:09:43 | Sep 08, 2014 - 06:09:43 | 0s | 100,00% |
| cha5126568 | Reversing.Kr | Mar 06, 2016 - 08:25:10 | Sep 30, 2017 - 18:24:12 | 1y 208d | 78,97% |
| cha5126568 | SuNiNaTaS | Mar 06, 2016 - 08:25:36 | Mar 06, 2016 - 08:25:36 | 0s | 100,00% |
| CH1M4C | SuNiNaTaS | Mar 11, 2016 - 19:38:37 | Mar 11, 2016 - 19:38:37 | 0s | 100,00% |
 | Cerades | Yoire | Jan 06, 2013 - 11:07:49 | Jun 21, 2026 - 08:51:44 | 13y 168d | 11,10% |
| Celcious | 247CTF | Jul 08, 2026 - 13:32:19 | Jul 08, 2026 - 13:32:19 | 0s | 100,00% |
| Celcious | LordofSQLi | Jan 30, 2026 - 15:21:22 | Jan 30, 2026 - 15:21:22 | 0s | 100,00% |
| Celcious | RedTigers Hackit | Jan 31, 2026 - 17:09:18 | Jan 31, 2026 - 19:31:44 | 2h 22m | 0,00% |
| Celcious | SuNiNaTaS | Jan 30, 2026 - 15:26:33 | Jan 31, 2026 - 07:07:00 | 15h 40m | 0,00% |
| Celcious | try to decrypt | Jan 31, 2026 - 10:39:31 | Mar 13, 2026 - 14:30:28 | 41d 3h | 53,57% |
| Celcious | Webhacking.kr | Jan 30, 2026 - 15:22:24 | Feb 02, 2026 - 19:59:13 | 3d 4h | 13,82% |
| CARLO | Hack The Web | Nov 19, 2025 - 13:20:46 | Nov 20, 2025 - 17:53:49 | 1d 4h | 98,71% |