| Longshaw Sheepdog Trials | Sat 2nd Sep 2023 | 137/138 | 01:34:36 | See all Colin Bostock at Longshaw Sheepdog Trials |
| Longshaw Sheepdog Trials | Sat 3rd Sep 2022 | 130/139 | 01:16:11 | See all Colin Bostock at Longshaw Sheepdog Trials |
| Hathersage gala | Mon 4th Jul 2022 | 164/179 | 00:54:45 | See all Colin Bostock at Hathersage gala |
| Burbage Skyline | Tue 7th Jun 2022 | 285/314 | 00:52:00 | See all Colin Bostock at Burbage Skyline |
| Longshaw Sheepdog Trials | Sat 31st Aug 2019 | 213/ | 01:07:49 | See all Colin Bostock at Longshaw Sheepdog Trials |
| Hathersage gala | Mon 8th Jul 2019 | 234/283 | 00:53:13 | See all Colin Bostock at Hathersage gala |
| Longshaw Sheepdog Trials | Sat 1st Sep 2018 | 147/179 | 01:04:28 | See all Colin Bostock at Longshaw Sheepdog Trials |
| Burbage Skyline | Tue 8th May 2018 | 256/322 | 01:06:18 | See all Colin Bostock at Burbage Skyline |
| Edale Skyline | Sun 11th Mar 2018 | - | See all Colin Bostock at Edale Skyline | |
| Longshaw Sheepdog Trials | Sat 9th Sep 2017 | 150/214 | 01:07:39 | See all Colin Bostock at Longshaw Sheepdog Trials |