All users which currently have 100% on a site.
| Username | Site | First Track | Master since | Track-Time | From | |
|---|---|---|---|---|---|---|
 | hidejc | SuNiNaTaS | Dec 14, 2014 - 15:55:36 | Sep 08, 2019 - 13:29:56 | 4y 268d | 25.17% |
 | HiPhiSch | HackThisSite | Dec 14, 2010 - 17:29:03 | Dec 14, 2010 - 17:29:03 | 0s | 100.00% |
 | hjasud | hax.tor.hu | Aug 04, 2017 - 22:21:13 | Feb 04, 2018 - 03:01:12 | 183d 5h | 4.00% |
| hjasud | RedTigers Hackit | Feb 05, 2018 - 01:26:55 | Feb 05, 2018 - 01:26:55 | 0s | 100.00% |
 | hkkiw0823 | SuNiNaTaS | Feb 20, 2015 - 16:26:07 | Feb 20, 2015 - 20:26:24 | 4h 17s | 97.03% |
 | Holographic | hax.tor.hu | Nov 14, 2012 - 03:26:40 | Mar 04, 2017 - 17:35:45 | 4y 111d | 98.00% |
| Holographic | Yoire | Nov 20, 2012 - 20:11:12 | Nov 20, 2012 - 20:11:12 | 0s | 100.00% |
| Holographic | CanYouHack.It | Nov 28, 2012 - 12:49:50 | Aug 27, 2015 - 08:21:16 | 2y 271d | 50.00% |
| Holographic | Mathchall | Jan 08, 2014 - 00:29:55 | Feb 02, 2014 - 16:22:10 | 25d 15h | 57.28% |
| Holographic | IRISSCON 2012 Lost Challenges | Jan 23, 2014 - 21:33:52 | Jan 29, 2014 - 13:29:16 | 5d 15h | 81.75% |
| Holographic | RedTigers Hackit | Jan 27, 2014 - 08:06:27 | Jan 28, 2014 - 10:44:12 | 1d 2h | 0.00% |
| Holographic | Hacker Gateway | Mar 04, 2017 - 19:47:22 | Mar 06, 2017 - 16:59:08 | 1d 21h | 81.82% |
| houjingyi | RedTigers Hackit | Dec 29, 2016 - 05:17:57 | Dec 30, 2016 - 05:27:44 | 1d 9m | 0.00% |
| htkim | SuNiNaTaS | May 15, 2016 - 18:05:57 | Jun 21, 2016 - 09:09:03 | 36d 15h | 27.77% |
| humit | SuNiNaTaS | Aug 13, 2015 - 04:45:36 | Jun 12, 2016 - 11:57:42 | 304d 7h | 55.11% |
 | hundan | SolveMe | Apr 11, 2017 - 06:55:05 | May 19, 2018 - 05:07:28 | 1y 37d | 0.00% |
| hungrys | SuNiNaTaS | Apr 20, 2012 - 01:33:23 | Apr 23, 2012 - 13:23:29 | 3d 11h | 87.88% |
 | HvT | HackThisSite | Jan 28, 2009 - 21:56:31 | Apr 05, 2023 - 20:28:45 | 14y 69d | 14.86% |
| HvT | IRISSCON 2012 Lost Challenges | May 21, 2014 - 22:24:26 | May 21, 2014 - 22:24:26 | 0s | 100.00% |
| HvT | RedTigers Hackit | Apr 02, 2023 - 02:14:54 | Apr 02, 2023 - 02:27:52 | 12m 58s | 14.10% |
| hwhw | SuNiNaTaS | Sep 15, 2013 - 13:19:20 | Sep 15, 2013 - 13:19:20 | 0s | 100.00% |
| hyunmini | SuNiNaTaS | Dec 12, 2013 - 03:25:52 | Dec 12, 2013 - 03:25:52 | 0s | 100.00% |
 | iamthehacker | Security Override | Feb 04, 2014 - 15:38:25 | Feb 04, 2014 - 15:38:25 | 0s | 100.00% |
| ic3guy | Mod-X | Aug 06, 2017 - 02:13:59 | Aug 06, 2017 - 02:13:59 | 0s | 100.00% |
| idanhurja | pwn.college | Jan 19, 2024 - 14:09:16 | Jan 19, 2024 - 14:09:16 | 0s | 100.00% |
| Illusion03 | HackThisSite | Jan 24, 2009 - 12:31:23 | Apr 05, 2023 - 20:29:05 | 14y 74d | 4.06% |
| imreplay | Webhacking.kr | Dec 14, 2021 - 06:53:21 | Dec 14, 2021 - 06:53:21 | 0s | 100.00% |
 | initzr | RedTigers Hackit | Mar 20, 2019 - 00:07:37 | Mar 20, 2019 - 05:20:48 | 5h 13m | 0.00% |
| Inj3cti0n | SuNiNaTaS | Jul 22, 2014 - 08:12:11 | Jul 25, 2014 - 04:27:47 | 2d 20h | 82.54% |
 | integeruser | RedTigers Hackit | May 03, 2014 - 23:08:06 | May 27, 2014 - 12:30:31 | 23d 13h | 0.00% |
| integeruser | CSTutoringCenter | Dec 27, 2014 - 16:12:41 | Feb 02, 2016 - 20:54:43 | 1y 37d | 0.00% |
| integeruser | hax.tor.hu | Jun 11, 2016 - 15:01:16 | Jun 24, 2016 - 20:15:37 | 13d 5h | 28.00% |
| invik | +Ma's Reversing | Mar 22, 2012 - 22:29:36 | Jan 21, 2016 - 14:34:10 | 3y 304d | 3.57% |
| iolrachas | RedTigers Hackit | Feb 13, 2016 - 19:14:54 | Feb 13, 2016 - 19:16:35 | 1m 41s | 0.00% |
| ioqt00 | LordofSQLi | Mar 02, 2020 - 21:44:46 | Apr 30, 2020 - 20:34:57 | 58d 21h | 32.65% |
 | IPYouFy | osix | Mar 03, 2011 - 03:01:56 | Mar 26, 2011 - 21:15:35 | 23d 18h | 79.71% |
| IPYouFy | CSTutoringCenter | Mar 26, 2011 - 23:41:13 | Apr 02, 2011 - 16:18:29 | 6d 15h | 0.00% |
| IPYouFy | Revolution Elite | Apr 20, 2011 - 20:57:10 | May 10, 2011 - 21:19:52 | 20d 22m | 0.00% |
| itchy | SuNiNaTaS | May 09, 2013 - 17:29:52 | Oct 23, 2013 - 12:52:11 | 166d 19h | 30.24% |
 | ITPPA | RedTigers Hackit | Feb 10, 2017 - 07:36:27 | Mar 28, 2017 - 06:48:39 | 45d 22h | 0.00% |
| J4Nobody | RedTigers Hackit | Aug 10, 2018 - 03:59:49 | Aug 29, 2018 - 17:56:45 | 19d 13h | 0.00% |
| jablonskim | ThisisLegal.com | Jul 20, 2009 - 16:56:27 | Oct 14, 2019 - 00:26:49 | 10y 87d | 22.67% |
| jablonskim | hax.tor.hu | Nov 14, 2009 - 21:26:46 | Feb 15, 2017 - 12:55:51 | 7y 94d | 10.00% |
| jablonskim | RedTigers Hackit | Aug 22, 2013 - 20:00:38 | Jan 29, 2017 - 10:25:09 | 3y 160d | 0.00% |
| jablonskim | Hacker Gateway | Mar 10, 2017 - 01:04:01 | Mar 10, 2017 - 14:15:58 | 13h 11m | 63.64% |
| JaeHyuk-Lim | wargame.kr | Dec 20, 2014 - 14:16:08 | Dec 20, 2014 - 14:16:08 | 0s | 100.00% |
| JaeHyuk-Lim | Webhacking.kr | Dec 20, 2014 - 14:16:18 | Apr 29, 2015 - 11:02:55 | 129d 19h | 98.30% |
| JaeHyuk-Lim | SuNiNaTaS | Dec 20, 2014 - 14:16:20 | Dec 20, 2014 - 14:16:20 | 0s | 100.00% |
| JaeHyuk-Lim | RedTigers Hackit | Dec 27, 2014 - 02:59:45 | Apr 29, 2015 - 10:49:25 | 123d 6h | 31.45% |
| Jakkdu | Reversing.Kr | Sep 26, 2013 - 10:08:48 | Oct 29, 2013 - 09:31:38 | 33d 22m | 58.06% |