BestRacesroad · 12-miler · 2-person-relay
Altra Charles Street 12 and 2-Person Relay presented by Kelly Benefits EARLY BIRD REGISTRATION (2027)
Build your free race-day pace plan| Distances | 12-miler, 2-person-relay |
| Surface | road |
| USATF certified | No |
| Boston qualifier | No |
Running Altra Charles Street 12 and 2-Person Relay presented by Kelly Benefits EARLY BIRD REGISTRATION (2027) for a cause? Set up a free team page — rally your people, point donations straight to your charity.
Run this one?
Tell other runners it's worth the entry fee. One tap, no email, no account.
Votes don't affect the ranking. Here's what does →
Race Pace Analyzer beta
Build your Altra Charles Street 12 and 2-Person Relay presented by Kelly Benefits EARLY BIRD REGISTRATION (2027) splits
Not a generic pace calculator — this one already knows the course. Give it your goal finish time and it returns every split to the tape, adjusted for this race's terrain and typical race-morning heat, plus a fueling plan and an honest read on whether the goal fits your fitness. Free, no signup, nothing held back.
- Already loaded
- 12 miles
- ≈60°F on September race mornings
| Mile | Split | Elapsed |
|---|
Training paces for this goal
The everyday paces that build the fitness behind your goal — derived from your target with the Daniels VDOT model. Bookmark these for your next training block.
Guides, not gospel — run easy days by feel and adjust for heat, hills, and how your legs actually feel that day.
Racing more than this one?
The BestRaces email: twice a month, the races our data says are worth the trip — never pay-to-play — plus a heads-up when your race's week arrives. One-click unsubscribe, always.
Beta: splits are exact math on your goal time; terrain and weather notes are estimates from this race's listed data, not a forecast. Pacing is a plan, not a promise.