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Boston Cut-off Time Prediction Contest

Predict the 2027 Boston Cut-off Time and win a great prize and bragging rights among all your running friends.

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Historical weather

Historical Race Day Weather for the Mad Marathon

See historical race day weather for the Mad Marathon, including start temperature, humidity, wind, race day temperatures, PR score, and course score.

Weather Averages for Last 15 Years

Race day snapshot

Clear

Most common race morning weather across the last 15 years.

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 83% Humidity

Wind S 4 mph

Race day high 78°F 26°C

Race day low 57°F 14°C

PR Score 92.69 Weather-influenced race day scoring

Course Score 95.36 Course-only Score

Race Day Weather by Year

Most recent years appear first so you can quickly compare start conditions, temperatures, wind, and scores across different editions of the race.

July 12, 2026

Race day snapshot

Clear

Start Line Conditions

Start Temp 60°F 16°C

Start Humidity 84% Humidity

Wind No Wind Wind

Race day high 79°F 26°C

Race day low 52°F 11°C

PR Score 92.11 Normal score 91.22

Course Score 94.19 Course-only Score

Boston Qualifying Cut-off Time Prediction Contest