| Distance | 43.0 mi |
| Distance (metric) | 69.2 km“The TARC Wapack and Back Trail Races consist of both the 50 mile and 43 mile ultramarathons” source |
| Course type | out-and-back“Four water stations (which participants in the ultra will pass in both directions).” source |
| Net elevation | 0 ft“Four water stations (which participants in the ultra will pass in both directions).” source |
| Terrain | mountain“It offers boulder fields, rocky ledges, granite slabs, lots of single track with rocks and roots” source |
| Nearest town | Ashburnham“Saturday, May 15, 2027 in Ashburnham, Massachusetts” source |
| State | MA“Saturday, May 15, 2027 in Ashburnham, Massachusetts” source |
| Country | US“Saturday, May 15, 2027 in Ashburnham, Massachusetts” source |
| Race starts at | DCR Mount Watatic Reservation entrance, Ashburnham MA“DCR Mount Watatic Reservation entrance in Massachusetts” source |
| Nearest major airport | BOS“"distance":90858” source |
| Driving distance to airport | 60.5 mi“"distance":97331.5” source |
| Date | 2027-05-15 |
| Start time | 05:00 |
| Entry fee | $75 |
| Aid stations | 8 |
| Drop bags | yes |