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Boston Marathon Participants Will Have To Provide Proof Of Vaccination Or Negative COVID Test, B.A.A. Announces – CBS Boston
Akron Marathon to require runners, volunteers be fully vaccinated or have negative COVID-19 test to participate - cleveland.com
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Magic in misery': the ultrarunners tackling the Spartathlon, the world's toughest race | The Sunday Times Magazine | The Sunday Times
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ABC News on Twitter: "Runners with only a negative test won't qualify. Read more: https://t.co/PxDGbNx7Nw https://t.co/XUICNr8M2P" / Twitter
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