All users which currently have 100% on a site.
| Username | Site | First Track | Master since | Track-Time | From | |
|---|---|---|---|---|---|---|
 | kernelpanic | +Ma's Reversing | Dec 29, 2018 - 23:59:18 | Dec 29, 2018 - 23:59:18 | 0s | 100.00% |
 | Kender | HackQuest | Mar 13, 2008 - 20:26:32 | Mar 13, 2008 - 20:26:32 | 0s | 100.00% |
 | KazWolfe | ae27ff | Aug 28, 2019 - 06:04:01 | Aug 28, 2019 - 06:04:01 | 0s | 100.00% |
 | kazetkazet | hackburger | Oct 23, 2017 - 17:35:27 | Oct 23, 2017 - 17:35:27 | 0s | 100.00% |
 | kanade | HackThisSite | Jun 15, 2014 - 13:01:05 | Jun 15, 2014 - 13:01:05 | 0s | 100.00% |
 | jsmind | SuNiNaTaS | Apr 23, 2012 - 10:32:24 | Apr 23, 2012 - 10:32:24 | 0s | 100.00% |
 | joizel | SuNiNaTaS | Dec 03, 2015 - 14:51:52 | Dec 03, 2015 - 14:51:52 | 0s | 100.00% |
| jinmo123 | SuNiNaTaS | Jan 05, 2013 - 08:53:25 | Jan 05, 2013 - 08:53:25 | 0s | 100.00% |
| jin03 | SuNiNaTaS | Apr 20, 2012 - 00:29:54 | Apr 20, 2012 - 00:29:54 | 0s | 100.00% |
| JimmyZhou | RedTigers Hackit | Mar 04, 2015 - 08:16:13 | Mar 04, 2015 - 08:16:13 | 0s | 100.00% |
 | jcfs | Net-Force | Oct 25, 2008 - 21:42:02 | Oct 25, 2008 - 21:42:02 | 0s | 100.00% |
| JamesV | ae27ff | Jul 06, 2024 - 12:49:58 | Jul 06, 2024 - 12:49:58 | 0s | 100.00% |
| JaeHyuk-Lim | SuNiNaTaS | Dec 20, 2014 - 14:16:20 | Dec 20, 2014 - 14:16:20 | 0s | 100.00% |
| JaeHyuk-Lim | wargame.kr | Dec 20, 2014 - 14:16:08 | Dec 20, 2014 - 14:16:08 | 0s | 100.00% |
| imreplay | Webhacking.kr | Dec 14, 2021 - 06:53:21 | Dec 14, 2021 - 06:53:21 | 0s | 100.00% |
| idanhurja | pwn.college | Jan 19, 2024 - 14:09:16 | Jan 19, 2024 - 14:09:16 | 0s | 100.00% |
| ic3guy | Mod-X | Aug 06, 2017 - 02:13:59 | Aug 06, 2017 - 02:13:59 | 0s | 100.00% |
 | iamthehacker | Security Override | Feb 04, 2014 - 15:38:25 | Feb 04, 2014 - 15:38:25 | 0s | 100.00% |
| hyunmini | SuNiNaTaS | Dec 12, 2013 - 03:25:52 | Dec 12, 2013 - 03:25:52 | 0s | 100.00% |
| hwhw | SuNiNaTaS | Sep 15, 2013 - 13:19:20 | Sep 15, 2013 - 13:19:20 | 0s | 100.00% |
| HvT | Hack The Web | Mar 27, 2025 - 20:27:29 | Mar 27, 2025 - 20:27:29 | 0s | 100.00% |
| HvT | IRISSCON 2012 Lost Challenges | May 21, 2014 - 22:24:26 | May 21, 2014 - 22:24:26 | 0s | 100.00% |
 | Holographic | Yoire | Nov 20, 2012 - 20:11:12 | Nov 20, 2012 - 20:11:12 | 0s | 100.00% |
| hjasud | RedTigers Hackit | Feb 05, 2018 - 01:26:55 | Feb 05, 2018 - 01:26:55 | 0s | 100.00% |
 | HiPhiSch | HackThisSite | Dec 14, 2010 - 17:29:03 | Dec 14, 2010 - 17:29:03 | 0s | 100.00% |
 | hideaway | BrainQuest | Nov 13, 2008 - 19:34:44 | Nov 13, 2008 - 19:34:44 | 0s | 100.00% |
 | hf_c500 | HackThisSite | Apr 05, 2023 - 20:32:20 | Apr 05, 2023 - 20:32:20 | 0s | 100.00% |
| Hertz | Yoire | Nov 30, 2012 - 05:25:02 | Nov 30, 2012 - 05:25:02 | 0s | 100.00% |
 | henryval | RedTigers Hackit | Dec 08, 2020 - 04:42:29 | Dec 08, 2020 - 04:42:29 | 0s | 100.00% |
| hellsonic | SuNiNaTaS | Aug 03, 2012 - 06:28:27 | Aug 03, 2012 - 06:28:27 | 0s | 100.00% |
| hds | IRISSCON 2012 Lost Challenges | Sep 10, 2014 - 06:05:10 | Sep 10, 2014 - 06:05:10 | 0s | 100.00% |
| happyhappygo | RedTigers Hackit | Jul 09, 2015 - 11:19:51 | Jul 09, 2015 - 11:19:51 | 0s | 100.00% |
| hackpupu | SuNiNaTaS | Dec 01, 2015 - 13:44:50 | Dec 01, 2015 - 13:44:50 | 0s | 100.00% |
 | HackerStudent | Webhacking.kr | Nov 15, 2013 - 07:42:48 | Nov 15, 2013 - 07:42:48 | 0s | 100.00% |
| HackerStudent | SuNiNaTaS | Nov 15, 2013 - 07:42:17 | Nov 15, 2013 - 07:42:17 | 0s | 100.00% |
| hackability | SuNiNaTaS | Dec 21, 2015 - 04:30:33 | Dec 21, 2015 - 04:30:33 | 0s | 100.00% |
| Grollicus | hax.tor.hu | Mar 09, 2018 - 17:06:56 | Mar 09, 2018 - 17:06:56 | 0s | 100.00% |
| grimskies | Security Traps | Nov 16, 2010 - 17:53:52 | Nov 16, 2010 - 17:53:52 | 0s | 100.00% |
| goreil | CryptoHack | Apr 30, 2023 - 17:47:43 | Apr 30, 2023 - 17:47:43 | 0s | 100.00% |
| goodFellaXL | RedTigers Hackit | Dec 06, 2021 - 08:01:16 | Dec 06, 2021 - 08:01:16 | 0s | 100.00% |
| Gogil | SuNiNaTaS | Jan 20, 2013 - 13:04:23 | Jan 20, 2013 - 13:04:23 | 0s | 100.00% |
| geteip | SuNiNaTaS | Aug 21, 2015 - 17:41:40 | Aug 21, 2015 - 17:41:40 | 0s | 100.00% |
| geteip | Webhacking.kr | Aug 21, 2015 - 17:37:29 | Aug 21, 2015 - 17:37:29 | 0s | 100.00% |
| germanlm93 | Challengeland | Mar 04, 2016 - 17:43:35 | Mar 04, 2016 - 17:43:35 | 0s | 100.00% |
 | GeneralZugs | HackThisSite | Apr 27, 2022 - 21:11:39 | Apr 27, 2022 - 21:11:39 | 0s | 100.00% |
| GAEntertainment | Webhacking.kr | Nov 16, 2013 - 14:57:22 | Nov 16, 2013 - 14:57:22 | 0s | 100.00% |
| GAEntertainment | SuNiNaTaS | Nov 16, 2013 - 14:57:09 | Nov 16, 2013 - 14:57:09 | 0s | 100.00% |
| g0migo | SuNiNaTaS | Oct 26, 2013 - 16:59:46 | Oct 26, 2013 - 16:59:46 | 0s | 100.00% |
| fu1002 | SuNiNaTaS | Feb 28, 2015 - 17:01:14 | Feb 28, 2015 - 17:01:14 | 0s | 100.00% |
| freeefly | SuNiNaTaS | Mar 02, 2015 - 07:46:36 | Mar 02, 2015 - 07:46:36 | 0s | 100.00% |