19 Runners Hospitalized After Santa Barbara Half Marathon

Published November 9, 2026. At least 19 people who took part in the Santa Barbara Half Marathon were treated at hospitals after developing similar, unexplained symptoms on November 8. The event drew more than 7,500 participants, and authorities have not announced a cause or detailed the patients’ conditions.

Emergency responders transported 12 people to Santa Barbara Cottage Hospital and three to Goleta Valley Cottage Hospital, while four others went to hospitals on their own. The hospital system said the number of race-related emergency visits was higher than expected and that it was examining whether heat or another factor played a role.

Race organizers said they had no indication of an unusual event and believed heat and exertion could explain the illnesses. Temperatures reached 86 degrees. Organizers also noted that medical transports can occur during races, including on cooler days.

Police are investigating reports of participants seeking care for unusual symptoms. Speculation on social media alleged that a substance might have been added to water at a course station, but authorities have not confirmed that claim, and no verified evidence of deliberate exposure has been presented.

Water stations along the route were spaced roughly 1.5 to 2.5 miles apart. Police said emergency crews responded at several locations between 9:40 and 10:45 a.m. The investigation is continuing. Anyone with information, or a participant who experienced unusual symptoms afterward, is asked to contact Sgt. Andre Miller at 805-897-2330.