Friday the 13th is the one day where everyone from average Joes to super star athletes can blame their failures on “bad luck.” This day, which occurs anywhere from one to three times a year, sends superstitious peeps into a frenzy. And as we all know, superstitions and sports go hand-in-hand (we see you, Cubs fans). Fails are inevitable though, and whether cursed or just straight-up sucking (II), everyone from Kobe Bryant to Oliver McCall (who? Peep the dude crying in the pic above) has had days where nothing seems to go their way. A couple weeks ago we counted down the greatest single-game performances in sports history on the 25th anniversary of Roger Clemens' 20 strikeout game, so, in honor of Friday the 13th, check out the 25 Worst Single-Game Performances in Sports History...