Too close to call on this goal. Boston and TIAA Philadelphia score within 0.5 of each other — pick on the date, the travel, or which one you actually want to run.
| A fast time / Boston | TIAA Philadelphia | flatter course, cooler typical morning |
| A first marathon | TIAA Philadelphia | more forgiving on debut day |
| Easiest entry | TIAA Philadelphia | less lottery / qualifier friction |
| Crowd & support | Boston | bigger field, more on-course energy |
| Lower trip cost | TIAA Philadelphia | cheaper all-in from South Florida |
Race-morning figures are 10-year history normals, not forecasts. Cost and travel are estimated from South Florida; your own origin may flip the trip-cost row. Full method on the methodology page.
| Score (10 = easiest) | Boston Marathon | TIAA Philadelphia Marathon |
|---|---|---|
| Green Score (overall) | 7.1 | 8.6 |
| First-timer score | 8.0 | 9.1 |
| Terrain | 6.9 | 7.9 |
| Climate | 10.0 | 10.0 |
| Entry | 2.0 | 10.0 |
| Travel | 5.0 | 5.0 |
| Field & support | 10.0 | 9.5 |
| Distance | marathon | marathon |
| Date | April 19, 2027 | November 22, 2026 |
| Location | Hopkinton, MA | Philadelphia, PA |
| Typical race-day weather (normal) | 49°F / dew 41°F | 42°F / dew 34°F |
| Elevation gain | 814 ft | 650 ft |
| Field size | 30,000 | 20,000 |
| Entry | qualifier | open |
| Entry fee | $255 | $180 |
| Boston qualifier course | No | Yes |
Sign in and connect Strava to see your projected finish time and qualifying odds at both races — heat- and course-adjusted to race day.