Got a competitive edge? Get your blood pumping playing ping pong as you prepare for midnight at SPiN’s Gatsby-themed fête. Get your ticket early and guarantee yourself expedited entry, hors d'oeuvres, and champagne for the 12 o’clock toast. Cocktail attire is encouraged, but don’t forget to make it an outfit that allows for mobility: you’ve got some games to win! SPiN, 690 Folsom St #100 at 3rd. (http://sanfrancisco.wearespin.com/, 415-636-5995). Dec 31 9pm. $25-$30.