Marathon Compass
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Compare · goal: a fast time

Two ways to run this. One of them is your answer.

Boston MarathonHopkinton, MA
Course shape
+815 ft · net −490 ft
+243 ft
Race morning
49°F · 41°F dew
56°F · 50°F dew
Getting in
qualifier · $255
lottery · $250
Trip estimate
~$1,505
~$1,120
Race date
Apr 19, 2027
Oct 11, 2026

Bank of America Chicago, on this goal. It has the easier course and the easier entry — and against Boston that is the difference that actually shows up in your finish time.

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If your goal is different
A fast time / BostonBank of America Chicago
A first marathonBank of America Chicago
Easiest entryBank of America Chicago
Crowd & supportBoston
Lower trip costBank of America Chicago

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 MarathonBank of America Chicago Marathon
Green Score (overall)
7.1
8.1
First-timer score
8.0
8.9
Terrain
6.9
9.2
Climate
10.0
9.0
Entry
2.0
6.0
Travel
5.0
5.0
Field & support
10.0
10.0
Distancemarathonmarathon
DateApril 19, 2027October 11, 2026
LocationHopkinton, MAChicago, IL
Typical race-day weather (normal)49°F / dew 41°F56°F / dew 50°F
Elevation gain814 ft243 ft
Field size30,00052,150
Entryqualifierlottery
Entry fee$255$250
Boston qualifier courseNoYes

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