These are the entrants of the TIGSource Sports Competition, which started on November 1st and ended on December. You can find the rules here. You can vote on the entries here.
Astraaal, by Armel J. Gibson and Dziff
Blind Mans Buff – Tournament Edition, by Cowinatub
Blobbyball, by David Williamson
BLOODBALL, by Josh Schonstal, Ian Brock and Guerin McMurry
Bodybuilder: Destroyer of Worlds, by donhilo & felipezille
Boogie Tennis, by Derek Yu (Disqualified from Voting)
By the law of blades, By the ARC Games
Chalk Rugby, by Graham Roberts
Cheering works!, by The Brathering
Chronoball, by Strayrobot
Cloccer, by Capn Lee
Cross Country Running, by Thomas R. Koll
DeTENNIStration, by Bernard Larkin and Greg Power
Digital Donkey Dash, by Muskox
Cycle SPORT, by Phaze
Dog Racing Game, by Logan Ames
Final Fantasy Football, by Ted Martens music by Sos
FLOG, by Louis Acresti
Footbrawl Quest, by Football Quest Team
Freestyle Ball Ball 2013, by Scott Washi and Catherine Arthur
Home Run, by Ben Humphreys, James Shedden and Bob Simpson
Hot-Blood TAG Brawl, by MapiMopi
Jet Bike Polo, by Jet Bike Polo Team
Liars Dice, by Harrison Mansolf
Mini Golf Master, by whilefun
Mosh Pit Game, by bw
Omegablades!, by No More Entertainment
Orienteer,by Edwin DeNicholas
ParkourParcourse, by Noktai
Pole Vaultage!, by goshki
Post-Apocalyptic Unicorn Marathon, by Gary Haussmann
Pro Psychic Rock Paper Scissors, by Alexandre Szybiak
Screaming Snakeball, by Niall Moody
Siberian Combat, by Murilo
Sugar Loco Wrestling, by Deconstructeam
Tiny Soccer Manager Stories, by Pierrec
Ultimate Sports (in 3D), by panthus
Unicorrida, by Claudio Musumeci, Joshua Skelton
Velodrome, by Matthew Brown
WASTEDROIDS, by Rowdy B Eaton
X-PONG ARMAGEDDON: TE, by X-PONG Team