Still regret you never joined the Marines? Why not try the grueling and hilarious fitness and obstacle tests this Saturday at the Santa Clara Fairgrounds in San Jose. There are over 20 of them for men, women and kids including rope walls, hurdles and plenty of mud. That’s just a taste of terrain racing. No swimming but as you slip and slide into the puddles you can use floating duckies. Races are timed and rewarded. Winners can take home $200. Tickets for all you late comers are now $60.