All users which currently have 100% on a site.
| Username | Site | First Track | Master since | Track-Time | From | |
|---|---|---|---|---|---|---|
 | JamesV | ae27ff | Jul 06, 2024 - 12:49:58 | Jul 06, 2024 - 12:49:58 | 0s | 100.00% |
| Jarvis777 | RedTigers Hackit | Aug 04, 2016 - 01:21:45 | Aug 04, 2016 - 21:01:19 | 19h 39m | 0.00% |
 | jcfs | Net-Force | Oct 25, 2008 - 21:42:02 | Oct 25, 2008 - 21:42:02 | 0s | 100.00% |
 | jefenux99 | RedTigers Hackit | Nov 18, 2015 - 23:15:50 | Nov 18, 2015 - 23:24:50 | 9m | 0.00% |
 | Jeong | SuNiNaTaS | Nov 01, 2014 - 17:10:16 | Jan 16, 2015 - 15:55:28 | 75d 22h | 87.47% |
| jeong0su | SuNiNaTaS | Jun 09, 2016 - 07:24:08 | Jun 27, 2016 - 08:56:47 | 18d 1h | 84.38% |
| 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% |
| JimmyZhou | RedTigers Hackit | Mar 04, 2015 - 08:16:13 | Mar 04, 2015 - 08:16:13 | 0s | 100.00% |
| jin03 | SuNiNaTaS | Apr 20, 2012 - 00:29:54 | Apr 20, 2012 - 00:29:54 | 0s | 100.00% |
| jinmo123 | pwnable.kr | Mar 10, 2016 - 15:57:16 | May 06, 2016 - 08:29:07 | 56d 15h | 96.98% |
| jinmo123 | RedTigers Hackit | Nov 02, 2013 - 05:19:55 | Nov 02, 2013 - 09:39:59 | 4h 20m | 0.00% |
| jinmo123 | Tasteless | Oct 23, 2013 - 18:21:28 | Oct 24, 2013 - 17:18:58 | 22h 57m | 0.00% |
| jinmo123 | SuNiNaTaS | Jan 05, 2013 - 08:53:25 | Jan 05, 2013 - 08:53:25 | 0s | 100.00% |
| Jinx | HackThisSite | Jul 02, 2009 - 21:02:05 | Apr 05, 2023 - 20:28:38 | 13y 279d | 44.42% |
| Jinx | IRISSCON 2012 Lost Challenges | Sep 20, 2013 - 20:47:16 | Mar 05, 2014 - 10:20:52 | 165d 14h | 0.00% |
| Jinx | Revolution Elite | Feb 15, 2011 - 15:41:43 | Jun 20, 2011 - 22:01:06 | 125d 5h | 6.82% |
| jjk | hax.tor.hu | Jun 03, 2014 - 22:54:49 | Feb 10, 2019 - 20:48:05 | 4y 252d | 98.00% |
| jjk | OverTheWire.org | Feb 25, 2014 - 15:12:00 | Dec 26, 2014 - 18:20:32 | 304d 3h | 0.00% |
| jjk | Electrica | Apr 14, 2012 - 18:07:24 | Dec 11, 2013 - 00:42:58 | 1y 240d | 0.00% |
| jjk | WeChall | Mar 23, 2008 - 18:34:06 | Dec 30, 2011 - 09:33:29 | 3y 281d | 3.45% |
| jnvb | SuNiNaTaS | Sep 17, 2012 - 18:54:04 | Sep 19, 2012 - 04:36:31 | 1d 9h | 63.87% |
| joizel | SuNiNaTaS | Dec 03, 2015 - 14:51:52 | Dec 03, 2015 - 14:51:52 | 0s | 100.00% |
 | JosipF | RedTigers Hackit | Jul 24, 2013 - 17:56:46 | Jul 25, 2013 - 15:54:56 | 21h 58m | 0.00% |
| joyflower | pwnable.kr | Jul 19, 2016 - 12:02:51 | Nov 24, 2016 - 06:21:59 | 127d 19h | 6.86% |
| JrXnm | RedTigers Hackit | Jul 24, 2018 - 11:13:07 | Aug 04, 2018 - 17:48:05 | 11d 6h | 0.00% |
| jsmind | SuNiNaTaS | Apr 23, 2012 - 10:32:24 | Apr 23, 2012 - 10:32:24 | 0s | 100.00% |
 | juanescobar | RedTigers Hackit | Feb 27, 2015 - 00:26:33 | Mar 01, 2015 - 05:24:24 | 2d 4h | 5.42% |
| JuanMusic1 | RedTigers Hackit | May 07, 2021 - 02:17:55 | Jun 09, 2021 - 23:23:23 | 33d 21h | 0.00% |
 | jusb3 | SuNiNaTaS | Jul 02, 2023 - 10:37:36 | Jul 02, 2023 - 13:27:55 | 2h 50m | 91.84% |
| jusb3 | Gekkó | Jul 11, 2017 - 19:40:38 | Jun 29, 2023 - 22:53:24 | 5y 354d | 40.74% |
| jusb3 | WeChall | Mar 09, 2014 - 23:07:43 | Apr 27, 2023 - 17:37:50 | 9y 50d | 1.36% |
| jusb3 | RingZer0 Team Online CTF | Mar 09, 2017 - 19:21:15 | Dec 21, 2022 - 22:00:59 | 5y 288d | 0.80% |
| jusb3 | Tasteless | Jul 06, 2017 - 20:09:49 | Aug 11, 2022 - 15:44:07 | 5y 36d | 3.05% |
| jusb3 | Electrica | May 28, 2015 - 00:26:43 | Jul 16, 2021 - 19:03:07 | 6y 51d | 2.27% |
| jusb3 | Rankk | May 16, 2015 - 22:36:42 | Apr 14, 2021 - 11:35:39 | 5y 334d | 3.25% |
| jusb3 | try to decrypt | Oct 23, 2017 - 21:16:02 | Aug 05, 2020 - 17:29:18 | 2y 286d | 92.86% |
| jusb3 | CryptoHack | Jul 08, 2020 - 10:59:47 | Jul 31, 2020 - 07:42:41 | 22d 20h | 17.27% |
| jusb3 | Omega Project | Nov 01, 2017 - 17:45:17 | Jul 03, 2020 - 10:31:17 | 2y 244d | 0.00% |
| jusb3 | Reversing.Kr | Oct 02, 2017 - 21:33:15 | Jun 05, 2020 - 18:09:02 | 2y 246d | 0.00% |
| jusb3 | 247CTF | Oct 04, 2019 - 20:14:47 | Oct 11, 2019 - 23:01:15 | 7d 2h | 77.05% |
| jusb3 | LordofSQLi | Jun 24, 2019 - 12:55:03 | Jun 26, 2019 - 15:21:37 | 2d 2h | 38.78% |
| jusb3 | Valhalla | Mar 01, 2017 - 16:28:07 | Sep 29, 2018 - 12:36:29 | 1y 211d | 10.81% |
| jusb3 | Yoire | May 22, 2017 - 03:47:54 | Oct 06, 2017 - 22:42:51 | 137d 18h | 24.48% |
| jusb3 | HackThisSite | Mar 13, 2014 - 10:27:24 | Sep 07, 2017 - 00:30:29 | 3y 178d | 6.70% |
| jusb3 | hackburger | Jul 18, 2017 - 16:13:27 | Jul 24, 2017 - 06:15:39 | 5d 14h | 8.97% |
| jusb3 | ThisisLegal.com | Mar 23, 2017 - 00:09:04 | May 11, 2017 - 00:16:28 | 48d 23h | 26.83% |
| jusb3 | SolveMe | Apr 14, 2017 - 17:04:13 | May 10, 2017 - 17:19:07 | 26d 14m | 38.89% |
| jusb3 | Defend the Web | Apr 17, 2016 - 18:35:36 | May 10, 2017 - 00:15:58 | 1y 22d | 12.41% |