Comparison Tool
Compare Boston Qualifier Marathons
Search for races, add them to your board, and instantly see how they stack up on PR score, BQ rate, course profile, weather history, and field size. Select 2–3 races for the cleanest side-by-side view.
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Compare races by the tradeoffs that actually affect a BQ attempt
The comparison tool is meant for the moment after you have a short list but before you register. It puts up to three races in one view so you can compare course profile, BQ rate, PR Score, race size, weather context, and timing without relying on memory or browser tabs.
For Boston qualifying, the best choice is rarely decided by one metric. A high BQ rate may come from a fast course, a selective field, favorable weather, or a combination of those factors. A lower BQ rate may still be the better race if it is closer to home, easier to travel to, or better aligned with your training cycle. Side-by-side comparison helps surface those practical differences.
Use the table as a decision aid, then open the full race pages for registration details and course notes. If the races are still tied, favor the one whose race morning you can execute with the least uncertainty: predictable start logistics, familiar weather, a terrain profile you have rehearsed, and enough time to recover from travel. If one finalist is downhill, verify its current net-drop tier because B.A.A. indexing can change the effective qualifying time.
Good comparisons to run
Compare a proven high-BQ-rate race against a closer regional race to see whether the travel tradeoff is worth it. Compare a downhill race against a flat race if you are unsure whether descent will help or hurt late in the marathon. Starting with registration for the 2027 Boston Marathon, the B.A.A. applies downhill indexing to certified courses with 1,500+ ft net elevation loss: +5:00 for 1,500-2,999 ft, +10:00 for 3,000-5,999 ft, and no Boston qualifying eligibility for 6,000+ ft. Compare spring and fall options if your training history shows a clear seasonal pattern.
The tool preserves selected races in the URL, which makes it useful for sharing a short list with a coach, training partner, or future version of yourself when registration decisions get close.
When comparison helps most
Use this page when the races are all plausible. If one race clearly fails a travel, timing, or terrain requirement, remove it first so the table focuses on meaningful choices.
What the best value means
Highlighted values show the strongest number in that row, not the universal winner. A race can lead on BQ rate and still lose for your plan if its date or logistics are wrong.
What to do after comparing
Open each finalist, verify official race details, calculate the pace you need, and register only after the course profile and calendar match the training block you can execute.
A better way to break ties
When the table does not produce an obvious answer, choose the race with the fewest execution surprises. That may mean a familiar climate, a simpler start line, a course profile you can rehearse, or a date that gives you a calmer taper. For BQ attempts, reducing uncertainty often matters as much as finding the race with the highest historical qualifier percentage.
If you are still unsure, keep one goal race and one backup race from a nearby season or region. Backup planning is especially useful when registration caps, weather, injury timing, or travel costs could disrupt the first choice.
Revisit the comparison after a tune-up race or when registration opens. Your best choice can change as fitness, budget, race availability, and weather expectations become clearer.