| jongens 12 jaar en jonger | ranglijst van 1 sept 2009 t/m 30 juni 2010 | |||||||
| 50m vrije slag | 100m vrije slag | |||||||
| Wilco Nijenhuis | 98 | 32.93 | 7-11-2009 | Wilco Nijenhuis | 98 | 1:11.55 | 13-3-2010 | |
| Pepijn Hillenius | 98 | 34.08 | 14-11-2009 | Pepijn Hillenius | 98 | 1:15.13 | 23-1-2010 | |
| Bart Cloosterman | 98 | 37.63 | 23-5-2010 | Bart Cloosterman | 98 | 1:23.20 | 10-4-2010 | |
| Max Voortman | 99 | 37.92 | 17-4-2010 | Luuk Albers | 98 | 1:26.27 | 13-3-2010 | |
| Luuk Albers | 98 | 37.93 | 23-5-2010 | Max Voortman | 99 | 1:28.17 | 22-5-2010 | |
| Jilles Oom | 00 | 40.71 | 17-4-2010 | Jilles Oom | 00 | 1:28.26 | 12-6-2010 | |
| Werner Struis | 98 | 42.41 | 23-5-2010 | Werner Struis | 98 | 1:34.42 | 3-4-2010 | |
| Thimo Dommerholt | 98 | 44.39 | 23-5-2010 | Erik Luijks | 98 | 1:36.71 | 3-4-2010 | |
| Erik Luijks | 98 | 45.02 | 23-5-2010 | Thimo Dommerholt | 98 | 1:44.14 | 22-5-2010 | |
| Julian Kokke | 00 | 47.82 | 28-11-2009 | Cas Plantinga | 98 | 1:45.64 | 7-3-2010 | |
| Cas Plantinga | 98 | 48.13 | 21-11-2009 | Julian Kokke | 00 | 1:51.66 | 7-3-2010 | |
| 200m vrije slag | 50m rugslag | |||||||
| Pepijn Hillenius | 98 | 2:54.45 | 12-12-2009 | Wilco Nijenhuis | 98 | 38.26 | 21-11-2009 | |
| Wilco Nijenhuis | 98 | 2:55.36 | 12-12-2009 | Pepijn Hillenius | 98 | 43.64 | 3-10-2009 | |
| Bart Cloosterman | 98 | 3:07.34 | 7-3-2010 | Max Voortman | 99 | 48.07 | 21-11-2009 | |
| Luuk Albers | 98 | 3:28.64 | 20-2-2010 | Bart Cloosterman | 98 | 48.54 | 29-12-2009 | |
| Werner Struis | 98 | 3:35.05 | 20-2-2010 | Jilles Oom | 00 | 50.04 | 24-10-2009 | |
| Luuk Albers | 98 | 50.76 | 30-1-2010 | |||||
| Julian Kokke | 00 | 51.19 | 30-1-2010 | |||||
| Thimo Dommerholt | 98 | 52.17 | 22-5-2010 | |||||
| Cas Plantinga | 98 | 53.32 | 21-11-2009 | |||||
| Werner Struis | 98 | 56.04 | 22-5-2010 | |||||
| 100m rugslag | 200m rugslag | |||||||
| Wilco Nijenhuis | 98 | 1:25.36 | 16-1-2010 | Wilco Nijenhuis | 98 | 3:10.69 | 7-3-2010 | |
| Pepijn Hillenius | 98 | 1:30.26 | 16-1-2010 | Jilles Oom | 00 | 3:43.47 | 22-5-2010 | |
| Jilles Oom | 00 | 1:40.45 | 13-6-2010 | Cas Plantinga | 98 | 4:08.36 | 20-2-2010 | |
| Bart Cloosterman | 98 | 1:40.89 | 23-1-2010 | |||||
| Max Voortman | 99 | 1:51.13 | 24-10-2009 | |||||
| Erik Luijks | 98 | 1:56.39 | 23-1-2010 | |||||
| Julian Kokke | 00 | 1:57.33 | 29-12-2009 | |||||
| Luuk Albers | 98 | 1:58.83 | 7-3-2010 | |||||
| Werner Struis | 98 | 1:59.54 | 24-10-2009 | |||||
| Cas Plantinga | 98 | 2:02.33 | 7-3-2010 | |||||
| Thimo Dommerholt | 98 | 2:03.82 | 7-3-2010 | |||||
| 50m schoolslag | 100m schoolslag | |||||||
| Pepijn Hillenius | 98 | 44.13 | 16-1-2010 | Pepijn Hillenius | 98 | 1:38.67 | 13-3-2010 | |
| Wilco Nijenhuis | 98 | 50.54 | 19-9-2009 | Wilco Nijenhuis | 98 | 1:44.57 | 13-3-2010 | |
| Erik Luijks | 98 | 52.91 | 23-5-2010 | Max Voortman | 99 | 1:48.31 | 22-5-2010 | |
| Max Voortman | 99 | 53.64 | 24-10-2009 | Erik Luijks | 98 | 1:51.45 | 23-1-2010 | |
| Julian Kokke | 00 | 54.94 | 30-1-2010 | Jilles Oom | 00 | 1:57.34 | 13-3-2010 | |
| Luuk Albers | 98 | 55.26 | 21-11-2009 | Werner Struis | 98 | 1:58.48 | 30-1-2010 | |
| Cas Plantinga | 98 | 55.78 | 23-5-2010 | Luuk Albers | 98 | 1:59.13 | 30-1-2010 | |
| Jilles Oom | 00 | 56.13 | 16-1-2010 | Cas Plantinga | 98 | 2:04.12 | 30-1-2010 | |
| Werner Struis | 98 | 56.59 | 3-4-2010 | Bart Cloosterman | 98 | 2:05.63 | 22-5-2010 | |
| Bart Cloosterman | 98 | 1:06.02 | 18-10-2009 | Julian Kokke | 00 | 2:07.64 | 29-12-2009 | |
| 200m schoolslag | 50m vlinderslag | |||||||
| Pepijn Hillenius | 98 | 3:38.46 | 23-5-2010 | Wilco Nijenhuis | 98 | 37.67 | 10-4-2010 | |
| Erik Luijks | 98 | 4:02.59 | 20-2-2010 | Pepijn Hillenius | 98 | 41.50 | 10-4-2010 | |
| Werner Struis | 98 | 4:21.50 | 23-5-2010 | Bart Cloosterman | 98 | 51.26 | 10-4-2010 | |
| Max Voortman | 99 | 52.37 | 22-5-2010 | |||||
| Werner Struis | 98 | 53.68 | 22-5-2010 | |||||
| 100m vlinderslag | 200m vlinderslag | |||||||
| Wilco Nijenhuis | 98 | 1:29.64 | 13-6-2010 | Wilco Nijenhuis | 98 | 3:48.39 | 20-2-2010 | |
| Pepijn Hillenius | 98 | 1:34.53 | 20-3-2010 | |||||
| Bart Cloosterman | 98 | 1:51.39 | 20-3-2010 | |||||
| 100m wisselslag | 200m wisselslag | |||||||
| Wilco Nijenhuis | 98 | 1:28.21 | 17-4-2010 | Wilco Nijenhuis | 98 | 3:06.83 | 20-3-2010 | |
| Pepijn Hillenius | 98 | 1:28.76 | 14-11-2009 | Pepijn Hillenius | 98 | 3:09.37 | 20-3-2010 | |
| Bart Cloosterman | 98 | 1:38.13 | 17-4-2010 | Max Voortman | 99 | 3:37.29 | 20-2-2010 | |
| Erik Luijks | 98 | 2:00.02 | 28-11-2009 | Bart Cloosterman | 98 | 3:41.55 | 20-3-2010 | |