https://www.uber.com/en-CA/blog/biggame/ -“If you live in Boston or LA, open the Uber app on gameday and tap the Unhappy Hour message at the bottom of your screen. You’ll see the promo code for your city to apply in the worst-case scenario that your team loses After the game ends, open the Uber app, apply the promo code in the Payments section of the menu, and request a ride. The Unhappy Hour is only valid for UberX, UberXL, UberPOOL, Express Pool and WAV trips.” The credit is valid for $50 off, and is valid for 60 days.