Cock Groot
Netherlands (NED)
May 1961 (M60)
Personal Records
| 500m | 41,80 | 30 December 1985 | Inzell (GER) |
| 1000m | 1.26,43 | 4 March 1984 | Berlin (GER) |
| 1500m | 2.09,01 | 20 January 1985 | Inzell (GER) |
| 3000m | 4.34,95 | 5 January 2019 | Inzell (GER) |
| 5000m | 7.47,80 | 17 March 1987 | Heerenveen (NED) |
| 10000m | 16.34,08 | 23 November 1986 | Frankfurt (GER) |
Season Bests
| 500m | 47,11 | 16 October 2022 | Alkmaar (NED) |
| 1500m | 2.20,27 | 16 October 2022 | Alkmaar (NED) |
| 3000m | 4.52,66 | 22 October 2022 | Alkmaar (NED) |
| 500m | 47,37 | 12 March 2022 | Hoorn (NED) |
| 1000m | 1.36,78 | 20 November 2021 | Alkmaar (NED) |
| 1500m | 2.19,03 | 13 March 2022 | Hoorn (NED) |
| 3000m | 4.47,04 | 27 November 2021 | Alkmaar (NED) |
| 5000m | 9.31,34 | 29 January 2022 | Alkmaar (NED) |
| 100m | 12,63 | 1 March 2020 | Alkmaar (NED) |
| 300m | 30,29 | 22 December 2019 | Alkmaar (NED) |
| 500m | 45,16 | 11 January 2020 | Alkmaar (NED) |
| 1000m | 1.29,75 | 11 January 2020 | Alkmaar (NED) |
| 1500m | 2.15,43 | 16 November 2019 | Heerenveen (NED) |
| 3000m | 4.39,34 | 1 March 2020 | Alkmaar (NED) |
| 5000m | 7.51,21 | 7 December 2019 | Heerenveen (NED) |
| 100m | 12,61 | 22 December 2018 | Alkmaar (NED) |
| 300m | 29,50 | 22 December 2018 | Alkmaar (NED) |
| 500m | 44,63 | 6 January 2019 | Inzell (GER) |
| 1000m | 1.27,89 | 26 January 2019 | Alkmaar (NED) |
| 1500m | 2.13,93 | 6 January 2019 | Inzell (GER) |
| 3000m | 4.34,95 | 5 January 2019 | Inzell (GER) |
| 5000m | 7.51,36 | 17 February 2019 | Alkmaar (NED) |
| 100m | 12,03 | 10 December 2017 | Alkmaar (NED) |
| 300m | 28,25 | 10 December 2017 | Alkmaar (NED) |
| 500m | 44,44 | 20 January 2018 | Heerenveen (NED) |
| 1000m | 1.32,14 | 21 January 2018 | Alkmaar (NED) |
| 1500m | 2.15,26 | 20 January 2018 | Heerenveen (NED) |
| 3000m | 4.49,32 | 10 February 2018 | Groningen (NED) |
| 5000m | 7.55,86 | 17 March 2018 | Heerenveen (NED) |
| 100m | 12,02 | 29 October 2016 | Alkmaar (NED) |
| 300m | 28,53 | 20 October 2016 | Inzell (GER) |
| 500m | 44,25 | 21 October 2016 | Inzell (GER) |
| 1000m | 1.30,01 | 21 October 2016 | Inzell (GER) |
| 1500m | 2.14,97 | 18 October 2016 | Inzell (GER) |
| 3000m | 4.39,52 | 2 January 2017 | Inzell (GER) |
| 5000m | 8.09,82 | 10 December 2016 | Alkmaar (NED) |
| 10000m | 17.11,30 | 22 January 2017 | Alkmaar (NED) |
| 500m | 43,84 | 20 December 2015 | Inzell (GER) |
| 1000m | 1.26,59 | 26 December 2015 | Inzell (GER) |
| 1500m | 2.13,50 | 20 December 2015 | Inzell (GER) |
| 3000m | 4.43,27 | 13 January 2016 | Heerenveen (NED) |
| 5000m | 8.21,51 | 16 March 2016 | Heerenveen (NED) |
| 500m | 48,90 | 13 March 2010 | Alkmaar (NED) |
| 1000m | 1.41,22 | 13 March 2010 | Alkmaar (NED) |
Results
| Categorie Alle Rijders | Alkmaar (NED) | 10 December 2022 | ||||||||
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| Clubwed. AIJC | Alkmaar (NED) | 20 November 2022 | ||||||||
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| Clubwedstrijd | Alkmaar (NED) | 12 November 2022 | ||||||||
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| Categorie Wedstrijd 500/1000/1500/3km | Alkmaar (NED) | 22 October 2022 | ||||||||
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| Clubwed. AIJC | Alkmaar (NED) | 16 October 2022 | ||||||||
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Native Language Names