Bill Gates purchased Rancho Paseana, a 224 acre equestrian facility, from Jenny Craig in Sep 2014 for $18 million. There are four horse barns of 30 stalls each, and a ¾ mile track. Mr. Gates purchased a home nearby in June of 2014 (link below).
Sports - Facilities
Links: en.wikipedia.org, www.sandiegouniontribune.com, virtualglobetrotting.com