I didn’t get drunk after drinking 10 drinks???

Title says it all, I had 10 mixed drinks over a period of three hours and at no point did I get drunk or really have any sort of mental impairment. I’m a big guy, 6’1 300 lbs, I drink maybe once a year. I figured I’d go all out at the holiday party with an open bar, where everyone got wasted but I was essentially sober the whole time 🙁

Anyone know what might cause that?