Marlborough Horse Trials | ||
| Spring Unrecognized Event | ||
| Opening Day | March 2 | |
| MHT Closing Day | April 2 | |
| Organizer's Meeting Day | TBD | |
| Horse Trials | April 11 | |
| Schooling Day | April 10 | |
| 2010 Marlborough Horse Trails | ||
| MHT Opening Day | August 3 | |
| Work Day | August 14 | |
| 10:00AM at the park | ||
| MHT Closing Day | September 11 | |
| Organizer's Meeting Day | September 12 | |
| 10:00AM at the park | ||
| Horse Trials | September 18-19 | |