wincash99Win Tix: San Mateo County Fair. WHAT: San Mateo County Fair WHEN: May 30– June 8, 2025 WHERE: San Mateo County Event Center, San Mateo 99.7 NOW has your chance to winDifficulty Level : Very Easy ( 1 out of 5 ) Get ready to tantalize your taste buds and win b with 99 Brand's Flavorite Promotion! This is your ultimate chance to walk away with a whopping $9,999 in cash.