| 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 |
| Results in season 2025/2026: |
| 500 meter |
| 48 | .948 | 11/10/25 | Rostock GER | Hanse Cup 30st - Golden Sun Award | Quarter Finals, Group 1 | |
| 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 | .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 | |
| 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 |
| 1:40 | .550 | 22/11/25 | Heerenveen NED | National League NED - Top Cup 1 | Semi Final, Group 2 | |
| 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 | .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 | .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 | .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 | |
| 2:05 | .637 | 30/08/25 | Heerenveen NED | National Opening Competition NED | Quarter Finals, Group 1 | |
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| 1500 meter |
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| 2000 meter relay |
| 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) |
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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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