Comments on: 126th Boston Marathon Field Size Established as 30,000; All Entrants Must be Fully Vaccinated to Participate https://www.runningusa.org/industry-news/126th-boston-marathon-field-size-established-as-30000-all-entrants-must-be-fully-vaccinated-to-participate/ Running USA Tue, 02 Nov 2021 20:36:08 +0000 hourly 1 https://wordpress.org/?v=6.5.3