ChChChANGES to the Boston Marathon schedule Monday due to cold, rainy weather in the morning.
NOW, Wave 4 starts RIGHT after Wave 3 begins. Normally there's a 25 minute gap. Read more..
The Boston Athletic Association on Friday announced weather-related changes to Monday's Boston Marathon schedule to ensure the safety of participants, pushing the Wave 4 start time immediately behind Wave 3 (10:50 a.m.).