The Fitness Center at Hyatt Regency San Francisco Airport
The fitness center at Hyatt Regency San Francisco Airport - Burlingame is mentioned by expert reviewers. Of the 2 professionals tracked on TripExpert, 2 recommended the fitness center, such as Gayot and Fodor's.
Hyatt Regency San Francisco Airport 
Gayot
Fodor's
Gayot "The hotel’s highlights include the Knuckles Historical Sports Bar (which boasts 27 plasma TV monitors), a 24-hour fitness center and a huge outdoor swimming pool"
Fodor's "The hotel provides numerous 24-hour business center kiosks, a 24-hour gym, and a heated outdoor pool"
