| Boston Rowing Marathon | |
|---|---|
| Frequency | Annual |
| Location(s) | River Witham from Lincoln to Boston, in Lincolnshire, England |
| Years active | 1946–present |
| Next event | 20 September 2020 |
| Participants | 283 crews (2006) - 137 crews (2016) |
| Organised by | Boston Rowing Club |
| Website | www |
The Boston Rowing Marathon is a rowing head race taking place on the third Sunday of September annually in Lincolnshire, England, over the exceptionally long distance of 49.2 km (30.6 miles). The course is along the River Witham from Lincoln to Boston.