All users which currently have 100% on a site.
| Username | Site | First Track | Master since | Track-Time | From | |
|---|---|---|---|---|---|---|
 | iolrachas | RedTigers Hackit | Feb 13, 2016 - 19:14:54 | Feb 13, 2016 - 19:16:35 | 1m 41s | 0.00% |
 | 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% |
 | 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 | RedTigers Hackit | Aug 22, 2013 - 20:00:38 | Jan 29, 2017 - 10:25:09 | 3y 160d | 0.00% |
| JanLitwin17 | SuNiNaTaS | May 13, 2023 - 03:11:08 | Nov 20, 2023 - 17:07:45 | 191d 14h | 0.00% |
| Jarvis777 | RedTigers Hackit | Aug 04, 2016 - 01:21:45 | Aug 04, 2016 - 21:01:19 | 19h 39m | 0.00% |
| jefenux99 | RedTigers Hackit | Nov 18, 2015 - 23:15:50 | Nov 18, 2015 - 23:24:50 | 9m | 0.00% |
| JesseMK | RedTigers Hackit | Jul 13, 2016 - 04:23:38 | Jul 19, 2016 - 18:06:31 | 6d 13h | 0.00% |
 | JHSN | RedTigers Hackit | Apr 25, 2017 - 19:58:48 | Apr 27, 2017 - 17:01:10 | 1d 21h | 0.00% |
| jimeefr | RedTigers Hackit | Apr 18, 2016 - 12:25:55 | Apr 18, 2016 - 14:41:46 | 2h 15m | 0.00% |
| jinmo123 | Tasteless | Oct 23, 2013 - 18:21:28 | Oct 24, 2013 - 17:18:58 | 22h 57m | 0.00% |
| jinmo123 | RedTigers Hackit | Nov 02, 2013 - 05:19:55 | Nov 02, 2013 - 09:39:59 | 4h 20m | 0.00% |
| Jinx | IRISSCON 2012 Lost Challenges | Sep 20, 2013 - 20:47:16 | Mar 05, 2014 - 10:20:52 | 165d 14h | 0.00% |
| jjk | Electrica | Apr 14, 2012 - 18:07:24 | Dec 11, 2013 - 00:42:58 | 1y 240d | 0.00% |
| jjk | OverTheWire.org | Feb 25, 2014 - 15:12:00 | Dec 26, 2014 - 18:20:32 | 304d 3h | 0.00% |
 | JosipF | RedTigers Hackit | Jul 24, 2013 - 17:56:46 | Jul 25, 2013 - 15:54:56 | 21h 58m | 0.00% |
| JrXnm | RedTigers Hackit | Jul 24, 2018 - 11:13:07 | Aug 04, 2018 - 17:48:05 | 11d 6h | 0.00% |
 | JuanMusic1 | RedTigers Hackit | May 07, 2021 - 02:17:55 | Jun 09, 2021 - 23:23:23 | 33d 21h | 0.00% |
 | jusb3 | RedTigers Hackit | Apr 21, 2016 - 16:31:17 | Aug 10, 2016 - 09:48:59 | 110d 17h | 0.00% |
| jusb3 | Reversing.Kr | Oct 02, 2017 - 21:33:15 | Jun 05, 2020 - 18:09:02 | 2y 246d | 0.00% |
| jusb3 | Omega Project | Nov 01, 2017 - 17:45:17 | Jul 03, 2020 - 10:31:17 | 2y 244d | 0.00% |
 | kagure | RedTigers Hackit | Jan 26, 2019 - 21:23:12 | Mar 02, 2023 - 21:51:18 | 4y 36d | 0.00% |
 | Karrax | RedTigers Hackit | Dec 06, 2018 - 18:44:51 | Dec 18, 2018 - 00:28:55 | 11d 5h | 0.00% |
| kasia-tutej | RedTigers Hackit | Aug 30, 2016 - 16:18:00 | Aug 30, 2016 - 16:31:57 | 13m 57s | 0.00% |
| kazenojiyu | RedTigers Hackit | Jul 02, 2016 - 20:23:27 | Jul 02, 2016 - 20:28:52 | 5m 25s | 0.00% |
 | KCJones | RedTigers Hackit | May 23, 2016 - 03:15:38 | May 23, 2016 - 10:17:28 | 7h 1m | 0.00% |
| kiam | SuNiNaTaS | May 08, 2020 - 08:32:33 | May 14, 2020 - 12:52:50 | 6d 4h | 0.00% |
| kingpbz | RedTigers Hackit | Apr 19, 2018 - 11:19:51 | Apr 23, 2018 - 11:25:28 | 4d 5m | 0.00% |
| kismet | RedTigers Hackit | May 22, 2013 - 21:05:48 | Jun 20, 2016 - 22:35:30 | 3y 30d | 0.00% |
| kithyane | CSTutoringCenter | Jan 10, 2011 - 18:32:07 | Feb 08, 2011 - 21:34:07 | 29d 3h | 0.00% |
| KnightKoroviev | Reversing.Kr | Feb 21, 2014 - 22:01:23 | Apr 28, 2014 - 00:01:28 | 65d 1h | 0.00% |
 | kompel | RedTigers Hackit | Mar 19, 2021 - 22:49:53 | Jul 29, 2021 - 10:16:07 | 131d 10h | 0.00% |
| kompel | SuNiNaTaS | Oct 19, 2023 - 15:42:22 | Nov 25, 2023 - 11:19:00 | 36d 20h | 0.00% |
| ksydfius | RedTigers Hackit | Nov 24, 2013 - 21:08:38 | Nov 24, 2013 - 22:38:05 | 1h 29m | 0.00% |
 | kumaus | RedTigers Hackit | Nov 19, 2015 - 21:40:17 | Nov 25, 2015 - 11:51:36 | 5d 14h | 0.00% |
| kuroneko | RedTigers Hackit | Apr 30, 2016 - 09:42:48 | Oct 16, 2016 - 09:10:13 | 168d 23h | 0.00% |
| kwapik | RedTigers Hackit | Feb 23, 2017 - 20:48:33 | May 04, 2017 - 17:04:12 | 69d 19h | 0.00% |
| kwisatz | CSTutoringCenter | Dec 19, 2011 - 00:11:23 | Apr 11, 2012 - 15:21:49 | 114d 14h | 0.00% |
| kwisatz | IRISSCON 2012 Lost Challenges | Feb 28, 2014 - 23:33:35 | Mar 01, 2014 - 01:43:54 | 2h 10m | 0.00% |
| kwisatz | Security Override | Mar 11, 2012 - 16:29:46 | Mar 08, 2014 - 12:30:22 | 1y 361d | 0.00% |
| l0g | RedTigers Hackit | Mar 27, 2020 - 10:59:14 | Mar 31, 2020 - 07:31:39 | 3d 19h | 0.00% |
| LACiA | Webhacking.kr | Mar 28, 2024 - 10:28:07 | Apr 10, 2024 - 13:34:46 | 13d 2h | 0.00% |
| laxa | RedTigers Hackit | Jun 30, 2016 - 19:51:04 | Jul 22, 2016 - 00:54:40 | 21d 5h | 0.00% |
| LeaveRet | Mathchall | Dec 27, 2013 - 16:34:44 | Jan 04, 2014 - 21:51:49 | 8d 5h | 0.00% |
| love0day | Security Override | May 18, 2014 - 17:36:19 | Sep 14, 2014 - 09:17:08 | 118d 15h | 0.00% |
| lovenunu | RedTigers Hackit | Sep 27, 2017 - 15:35:36 | Sep 28, 2017 - 10:18:46 | 18h 43m | 0.00% |
 | Luthorien | RedTigers Hackit | Jul 25, 2018 - 13:04:39 | Jul 26, 2018 - 10:23:37 | 21h 18m | 0.00% |
| Luxerails | RedTigers Hackit | Jul 08, 2013 - 21:25:46 | Jul 08, 2013 - 23:15:34 | 1h 49m | 0.00% |