Best Games Of 2012: USA-Canada, SEC Championship Among Greatest Games Of The Year (VIDEOS)

Thanks in part to the London Olympics, 2012 was positively packed with memorable sporting events from start to finish.

Which was the best? The most memorable? The most unlikely?

Any conversation about the most thrilling, tense contests of the last 12 months must include the women's soccer semifinal at the 2012 Summer Games between the U.S. and Canada.

With a berth to the gold medal match on the line, Abby Wambach and Team USA had their hands full with Canada star Christine Sinclair. The 29-year old forward put Canada on the board first in the 22nd minute and it remained 1-0 until Megan Rapinoe answered with a stunning corner kick goal early in the second half.

That's when the fun started. Sinclair ended up netting a hat trick, but the U.S. had an answer for each goal. Of course, the full 90 minutes wasn't enough time to declare a winner. In the 123rd minute, the U.S. got one last opportunity and Alex Morgan seized it, scoring on a header to give the Americans the victory.

While that one might be hard to beat, there were plenty of other riveting games this year that had fans on the edges of their seats. From Tim Tebow's walk-off win in the NFL playoffs and the breakout of Johnny Football, the gridiron produced several memorable clashes. In baseball, there were a rash of jaw-dropping pitching performances and the unlikely heroics of Raul Ibanez to keep things interesting. Between the Olympics and the professional and collegiate circuits, there were also loads of compelling hoops matchups. And, if you can remember back far enough, 2012 did actually have some hockey.

Scroll down and vote on your favorite game of the 2012.