Participants in the 2018 Bay to Breakers foot race are seen in San Francisco on May 20, 2018. (Photo submitted to KGO-TV by @cbarnard/Twitter)Participants in the 2018 Bay to Breakers foot race are seen in San Francisco on May 20, 2018. (Photo submitted to KGO-TV by @almaru/Twitter)Philemon Cheboi from Kenya is seen after winning the Bay to Breakers race in San Francisco, Calif. on Sunday, May 20, 2018. (KGO-TV)Ape Hashbury puts a medal around the winners neck after the Bay to Breakers race in San Francisco, Calif. on Sunday, May 20, 2018. (KGO-TV)Two girls are seen at the Bay to Breakers race in San Francisco on Sunday, May 20, 2018. (@_d_ava.tar_ /Instagram)A large crowd is seen running in the Bay to Breakers race in San Francisco, Calif. on Sunday, May 20, 2018. (KGO-TV)A man is seen leading the Bay to Breakers race in San Francisco, Calif. on Sunday, May 20, 2018. (KGO-TV)Ape Hashbury is seen as the crowd takes off at the start of the Bay to Breakers race in San Francisco, Calif. on Sunday, May 20, 2018. (KGO-TV)SAN FRANCISCO (KGO) -- At least 40,000 people participated in the 107th annual Bay to Breakers race in San Francisco on Sunday, May 20, 2018.Click here for full coverage on the annual Bay to Breakers race. Report a correction or typo