| Athletes |
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Biographical data for: Kai-Arne OTTENHOFF
| Classifications in season 2021/2022: |
| 18/09/21 | Heerenveen NED | National League KNSB-Cup prologue | Divisie F | | Overall Ranking: 2nd, 1000 meter: 2nd | | 08/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Junior C Men | | Overall Ranking: 17th, 500 metre: 21st, 1000 metre: 18th, 1500 metre: 12th | | 30/10/21 | Groningen NED | Autumn Tournament | Men junior C | | Overall Ranking: 10th, 500 meter: 8th, 1000 meter: 12th | | 12/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Junior C Men | | Overall Ranking: 23rd, 500 metre: 29th, 1000 metre: 19th, 1500 metre: 19th | | 21/11/21 | Heerenveen NED | National League KNSB-cup 1 | Divisie D | | Overall Ranking: 13th, 500 meter: 13th | | 18/12/21 | Dordrecht NED | National League KNSB-cup 2 | Divisie B | | Overall Ranking: 8th, 1500 meter: 8th | | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Divisie B | | Overall Ranking: 11th, 500 meter: 13th, 1000 meter: 8th | | 19/02/22 | Heerenveen NED | National League KNSB-cup 4 | Divisie C | | Overall Ranking: 12th, 500 meter: 12th | | 19/03/22 | Leeuwarden NED | National Championships Juniors NED | Jongens Junioren C | | Overall Ranking: 12th, 500 meter: 11th, 777 meter: 13th, 1000 meter: 13th |
| Results in season 2021/2022: |
| 500 meter |
| 48 | .808 | 19/02/22 | Heerenveen NED | National League KNSB-cup 4 | Kwart Finales, Groep 1 | |
| 49 | .464 | 19/02/22 | Heerenveen NED | National League KNSB-cup 4 | Halve Finales, Groep 2 | |
| 49 | .63 | 30/10/21 | Groningen NED | Autumn Tournament | Final, Groep 2 | |
| 49 | .656 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Quarter Finals, Group 2 | |
| 49 | .947 | 13/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Final, Group 7 | |
| 49 | .980 | 21/11/21 | Heerenveen NED | National League KNSB-cup 1 | Finale, Groep 3 | |
| 50 | .005 | 19/02/22 | Heerenveen NED | National League KNSB-cup 4 | Finale, Groep 3 | |
| 50 | .042 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Final, Groep 3 | |
| 50 | .124 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Semi Final, Group 3 | |
| 50 | .177 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Semi Final, Groep 2 | |
| 50 | .23 | 30/10/21 | Groningen NED | Autumn Tournament | Semi Final, Groep 1 | |
| 50 | .273 | 13/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Semi Final, Group 4 | |
| 50 | .289 | 20/03/22 | Leeuwarden NED | National Championships Juniors NED | Kwart Finales | |
| 50 | .356 | 13/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Quarter Finals, Group 2 | |
| 50 | .412 | 21/11/21 | Heerenveen NED | National League KNSB-cup 1 | Halve Finales, Groep 2 | |
| 50 | .43 | 30/10/21 | Groningen NED | Autumn Tournament | Quarter Finals, Groep 1 | |
| 50 | .783 | 12/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Heats, Group 1 | |
| 51 | .408 | 08/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Heats, Group 1 | |
| 1:05 | .293 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Quarter Finals, Groep 1 | |
| 1:06 | .516 | 21/11/21 | Heerenveen NED | National League KNSB-cup 1 | Kwart Finales, Groep 1 | |
| 1:08 | .341 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Final, Group 5 |  |
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| 777 meter |
| 1:18 | .553 | 19/03/22 | Leeuwarden NED | National Championships Juniors NED | Kwart Finales | |
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| 1000 meter |
| 1:40 | .487 | 14/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Final, Group 4 | |
| 1:41 | .570 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Heats, Group 1 | |
| 1:42 | .271 | 10/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Final, Group 4 | |
| 1:42 | .487 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Quarter Finals, Group 1 | |
| 1:43 | .707 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Final, Groep 2 | |
| 1:44 | .203 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Semi Final, Groep 1 | |
| 1:44 | .394 | 13/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Quarter Finals, Group 1 | |
| 1:44 | .864 | 20/03/22 | Leeuwarden NED | National Championships Juniors NED | Kwart Finales | |
| 1:45 | .253 | 10/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Semi Final, Group 2 | |
| 1:45 | .453 | 14/11/21 | Bergamo ITA | StarClass-3 (CD-2) | Semi Final, Group 2 | |
| 1:45 | .844 | 18/09/21 | Heerenveen NED | National League KNSB-Cup prologue | Halve Finales, Groep 1 | |
| 1:46 | .288 | 18/09/21 | Heerenveen NED | National League KNSB-Cup prologue | Finale, Groep 1 | |
| 1:47 | .353 | 05/02/22 | Nijmegen NED | National League KNSB-cup 3 | Quarter Finals, Groep 1 | |
| 1:48 | .071 | 18/09/21 | Heerenveen NED | National League KNSB-Cup prologue | Kwart Finales, Groep 1 | |
| 1:58 | .19 | 30/10/21 | Groningen NED | Autumn Tournament | Final, Groep 2 | |
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| 1500 meter |
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| 2000 meter relay |
| P | 18/09/21 | Heerenveen NED | National League KNSB-Cup prologue | Finale, Groep 1 | |
| (Team 19: Stefan Meijer, Kai-Arne Ottenhoff, Jade Van De Rest, Juliette van den Berg) |
| P | 18/12/21 | Dordrecht NED | National League KNSB-cup 2 | Finale, Groep 1 | |
| (Team W: Bibi Arts, Claretta Caravita, Robin Keppels, Kai-Arne Ottenhoff) |
| P | 19/03/22 | Leeuwarden NED | National Championships Juniors NED | Halve Finales | |
| (IHC Leiden: Angel Daleman, Kai-Arne Ottenhoff, Henk van Atten, Julie van Santen) |
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| 3000 meter relay |
| 4:41 | .245 | 19/02/22 | Heerenveen NED | National League KNSB-cup 4 | Finale, Groep 1 | |
| (Team C: Valerie Aarts, Max Kleinrensink, Kai-Arne Ottenhoff, Jesse Tuinstra) |
| 4:53 | .684 | 09/10/21 | Amsterdam NED | StarClass-1 (CD-1) | Final, Group 1 | |
| (IHC Leiden: Stan de Graaf, Kai-Arne Ottenhoff, Joris Toornvliet, Timo Valentijn) |
| YC | 21/11/21 | Heerenveen NED | National League KNSB-cup 1 | Finale, Groep 1 | |
| (D4: Boet Groenewegen, Sophie Nijboer, Kai-Arne Ottenhoff, Birgit Radt) |
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