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🇺🇸
Boston Marathon
About This Race
The world's oldest annual marathon and one of the most prestigious World Marathon Majors.
🗺️ Course & Terrain
Detailed course maps, elevation profiles, and terrain analysis will be available soon.
💬 Discussion
Join the conversation — share tips, find running partners, and discuss race strategy with fellow runners.
📊 GAP Calculator
Load this course directly into the Grade-Adjusted Pace calculator for perfectly effort-paced splits.