| Athletes |
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Biographical data for: Rinze ONDERWATER
| Classifications in season 2025/2026: |
| 30/08/25 | Heerenveen NED | National Opening Competition NED | Division F | | Overall Ranking: 18th, 1000 meter: 18th | | 10/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Men Junior-C | | Overall Ranking: 13th, 500 meter: 12th, 777 meter: 13th, 1000 meter: 13th | | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Men Junior C | | Overall Ranking: 8th, 500 meter: 5th, 1000 meter: 7th | | 24/10/25 | Bergamo ITA | StarClass CD-1 | Men Junior-C | | Overall Ranking: 39th, 500 meter: 50th, 1000 meter: 33rd, 1500 meter: 27th | | 08/11/25 | Utrecht NED | National League NED-breed-1 | Divisie C | | Overall Ranking: 10th, 1500 meter: 10th | | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Divisie D | | Overall Ranking: 12th, 1000 meter: 12th | | 13/12/25 | Heerenveen NED | National League NED - Top Cup 2 | Divisie F | | Overall Ranking: 11th, 500 meter: 11th | | 19/12/25 | Oberstdorf GER | StarClass CD-2 | Men Junior-C | | Overall Ranking: 35th, 500 meter: 33rd, 1000 meter: 38th, 1500 meter: 33rd | | 17/01/26 | Leiden NED | National League NED - KNSB Cup-breed-2 | Divisie B | | 1000 meter: 19th | | 14/02/26 | Dordrecht NED | National League NED - KNSB Topcup 3 (1500m) | Divisie C | | 1500 meter: 18th | | 20/02/26 | Heerenveen NED | StarClass CD-3 | Men Junior-C | | Overall Ranking: 34th, 500 meter: 37th, 1000 meter: 39th, 1500 meter: 26th | | 14/03/26 | Leeuwarden NED | National Championships NED Juniors | Jongens Junioren C | | 500 meter: 11th, 1000 meter: 13th, 1500 meter: 11th |
| Results in season 2025/2026: |
| 500 meter |
| 47 | .526 | 20/12/25 | Oberstdorf GER | StarClass CD-2 | Final, Group 7 | |
| 47 | .580 | 19/12/25 | Oberstdorf GER | StarClass CD-2 | Heats, Group 1 | |
| 47 | .870 | 15/03/26 | Leeuwarden NED | National Championships NED Juniors | Kwart Finales | |
| 48 | .006 | 20/12/25 | Oberstdorf GER | StarClass CD-2 | Semi Final, Group 4 | |
| 48 | .203 | 20/12/25 | Oberstdorf GER | StarClass CD-2 | Quarter Finals, Group 2 | |
| 48 | .948 | 11/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Quarter Finals, Group 1 | |
| 49 | .470 | 21/02/26 | Heerenveen NED | StarClass CD-3 | Quarter Finals, Group 2 | |
| 49 | .546 | 21/02/26 | Heerenveen NED | StarClass CD-3 | Final, Group 8 | |
| 49 | .731 | 13/12/25 | Heerenveen NED | National League NED - Top Cup 2 | Halve Finales, Groep 2 | |
| 49 | .740 | 21/02/26 | Heerenveen NED | StarClass CD-3 | Semi Final, Group 3 | |
| 49 | .853 | 13/12/25 | Heerenveen NED | National League NED - Top Cup 2 | Finale, Groep 3 | |
| 49 | .888 | 10/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Quarter Finals, Group 1 | |
| 49 | .942 | 11/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Semi Final, Group 2 | |
| 50 | .117 | 11/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Final, Group 3 | |
| 50 | .118 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Quarter Finals, Group 1 | |
| 50 | .270 | 25/10/25 | Bergamo ITA | StarClass CD-1 | Semi Final, Group 4 | |
| 50 | .330 | 13/12/25 | Heerenveen NED | National League NED - Top Cup 2 | Kwart Finales, Groep 1 | |
| 50 | .522 | 25/10/25 | Bergamo ITA | StarClass CD-1 | Quarter Finals, Group 2 | |
| 50 | .599 | 24/10/25 | Bergamo ITA | StarClass CD-1 | Heats, Group 1 | |
| 51 | .225 | 11/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Semi Final, Group 2 | |
| 59 | .683 | 20/02/26 | Heerenveen NED | StarClass CD-3 | Heats, Group 1 | |
| 1:05 | .040 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 1 | |
| 1:29 | .118 | 25/10/25 | Bergamo ITA | StarClass CD-1 | Final, Group 10 | |
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| 777 meter |
| 1:20 | .092 | 12/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Final, Group 3 | |
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| 1000 meter |
| 1:38 | .627 | 21/12/25 | Oberstdorf GER | StarClass CD-2 | Semi Final, Group 2 | |
| 1:39 | .151 | 22/02/26 | Heerenveen NED | StarClass CD-3 | Final, Group 7 | |
| 1:40 | .257 | 22/02/26 | Heerenveen NED | StarClass CD-3 | Semi Final, Group 2 | |
| 1:40 | .550 | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Semi Final, Group 2 | |
| 1:41 | .095 | 15/03/26 | Leeuwarden NED | National Championships NED Juniors | Kwart Finales | |
| 1:41 | .808 | 21/02/26 | Heerenveen NED | StarClass CD-3 | Quarter Finals, Group 1 | |
| 1:42 | .447 | 08/11/25 | Utrecht NED | National League NED-breed-1 | Quarter Finals, Groep 1 | |
| 1:43 | .790 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Semi Final, Group 1 | |
| 1:44 | .028 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 2 |  |
| 1:44 | .255 | 26/10/25 | Bergamo ITA | StarClass CD-1 | Final, Group 7 | |
| 1:44 | .617 | 17/01/26 | Leiden NED | National League NED - KNSB Cup-breed-2 | Halve Finales, Groep 2 | |
| 1:44 | .671 | 25/10/25 | Bergamo ITA | StarClass CD-1 | Quarter Finals, Group 1 | |
| 1:44 | .746 | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Final, Group 3 | |
| 1:45 | .090 | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Quarter Finals, Group 1 | |
| 1:46 | .221 | 26/10/25 | Bergamo ITA | StarClass CD-1 | Semi Final, Group 2 | |
| 1:46 | .471 | 20/12/25 | Oberstdorf GER | StarClass CD-2 | Quarter Finals, Group 1 | |
| 1:46 | .686 | 30/08/25 | Heerenveen NED | National Opening Competition NED | Semi Final, Group 2 | |
| 1:47 | .155 | 10/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Quarter Finals, Group 1 | |
| 1:47 | .520 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Quarter Finals, Group 1 | |
| 1:47 | .548 | 17/01/26 | Leiden NED | National League NED - KNSB Cup-breed-2 | Kwartfinales, Groep 1 | |
| 1:47 | .881 | 10/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Final, Group 3 | |
| 1:49 | .763 | 10/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Semi Final, Group 2 | |
| 1:51 | .586 | 30/08/25 | Heerenveen NED | National Opening Competition NED | Final, Group 4 | |
| 1:53 | .136 | 17/01/26 | Leiden NED | National League NED - KNSB Cup-breed-2 | Finale, Groep 4 | |
| 2:05 | .637 | 30/08/25 | Heerenveen NED | National Opening Competition NED | Quarter Finals, Group 1 | |
| P | 21/12/25 | Oberstdorf GER | StarClass CD-2 | Final, Group 7 | |
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| 1500 meter |
| 2:40 | .504 | 19/12/25 | Oberstdorf GER | StarClass CD-2 | Final, Group 5 | |
| 2:41 | .154 | 14/02/26 | Dordrecht NED | National League NED - KNSB Topcup 3 (1500m) | Kwart Finales | |
| 2:41 | .290 | 14/03/26 | Leeuwarden NED | National Championships NED Juniors | Halve Finales | |
| 2:41 | .502 | 19/12/25 | Oberstdorf GER | StarClass CD-2 | Semi Final, Group 2 | |
| 2:41 | .589 | 14/02/26 | Dordrecht NED | National League NED - KNSB Topcup 3 (1500m) | Halve Finales, Groep 2 | |
| 2:41 | .988 | 24/10/25 | Bergamo ITA | StarClass CD-1 | Final, Group 4 | |
| 2:42 | .157 | 20/02/26 | Heerenveen NED | StarClass CD-3 | Final, Group 4 | |
| 2:42 | .562 | 20/02/26 | Heerenveen NED | StarClass CD-3 | Semi Final, Group 2 | |
| 2:44 | .639 | 08/11/25 | Utrecht NED | National League NED-breed-1 | Semi Final, Groep 1 | |
| 2:47 | .329 | 08/11/25 | Utrecht NED | National League NED-breed-1 | Final, Groep 2 | |
| 2:48 | .083 | 19/12/25 | Oberstdorf GER | StarClass CD-2 | Quarter Finals, Group 1 | |
| 3:23 | .499 | 14/02/26 | Dordrecht NED | National League NED - KNSB Topcup 3 (1500m) | Finale, Groep 3 | |
| P | 24/10/25 | Bergamo ITA | StarClass CD-1 | Semi Final, Group 1 | |
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| 2000 meter relay |
| 3:06 | .941 | 17/01/26 | Leiden NED | National League NED - KNSB Cup-breed-2 | Finale, Groep 1 | |
| (MIXED9: Tinne Bolsius, Rinze Onderwater, Floris-Jacob Toutenhoofd) |
| 3:09 | .286 | 08/11/25 | Utrecht NED | National League NED-breed-1 | Final, Groep 1 | |
| (Team A: Yente Brouwers, Noortje Kappers, Rinze Onderwater, Ties Overzet) |
| 3:10 | .957 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 1 | |
| (IHL Leiden - A: Rinze Onderwater, Annika Ouweneel, Maartje Toornvliet, Fabienne van der Veldt) |
| 3:24 | .911 | 13/12/25 | Heerenveen NED | National League NED - Top Cup 2 | Finale, Groep 1 | |
| (MIXED10: Zoe de Esch, Rinze Onderwater, Melanie Ooms, Sigrid van Es) |
| P | 03/01/26 | Leeuwarden NED | National Championships NED Seniors | Finale, B | |
| (IHC Leiden: Rinze Onderwater, Joris Toornvliet, Maartje Toornvliet, Fabienne van der Veldt) |
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| 3000 meter relay |
| 4:45 | .902 | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Final, Group 1 | |
| (S1R08: Fenna Bodewes, Kai Huiting, Louisa Loman, Rinze Onderwater) |
| 5:14 | .853 | 30/08/25 | Heerenveen NED | National Opening Competition NED | Final, Group 1 | |
| (S1-Team12: Yente Brouwers, Edo Hoekstra, Rinze Onderwater, Ties Overzet) |
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