Golubev and his ridiculous losing streak and magnus opus vs. Nadal at USO.
Troicki with his epic choking all year long.
The USTA and their shit storm at the USO.
Robin Haase for the choke of the year vs. Nishikori.
Thomaz Bellucci for mugging it up all year and capping it off with his "performance" in the Challenger Tour Finals, an event he should have never played to begin with
Fernando Verdasco for being the epitome of muggishness all year long, even in matches he won. The choke vs. Soderling in Rome, the loss to Lu on clay, who hadn't won a match on clay in 10 years
For the loss to hard court wizard Pablo Andujar in Miami. For his loss in the mugs match of the year vs. Nadal in Cincy
And that's just off the top of my head
Andy Roddick for turning into a huge clown this year in too many matches to recite.
Ernests Gulbis for his usual antics.
Alex Dolgopolov for bad losses all year.