Rating:

0.0 (0 votes)

TUCSON - This weekend saw the end of an era with Michael Phelps swimming in the final Olympic competition of his career - the 4x100-meter medley relay. With the help of Tucson swimmer Matt Grevers, Phelps was able to close out his career with his 22nd Gold medal!

Click here to view a slideshow of all 22 events that earned Michael Phelps a medal.

If you missed the weekend's events, you can see highlights in this photo gallery.

Usain Bolt once again proved why he's considered the fastest man in the world by winning a second consecutive Gold megal in the 100m dash. Click here to watch the video of his run.

How does he do it? Watch this NBC Sports video to discover the Science of the Olympics: Usain Bolt's Biomechanics.

Watch a video of highlights from the first week of Olympic competition here.

Not sure what to watch tonight? Check out complete TV Listings across all of NBC's channels here.

And, if you're a cable, satellite or telco subscriber with MSNBC or CNBC, you can watch any event, any time, live-streaming an on demand! Click here for details.

Time is running out to enter to win our various Olympic contests!

Click here to enter News 4 Tucson's Go 4 Gold Trivia Contest to win an Olympic-themed (and sized) coffee mug!

It's not too late to try and guess how many medals Team USA will win for a chance to win some valuable local prize packs!

And click here to enter to win a $100 prize pack loaded with official Olympic merchandise - then tune in to News 4 Tucson Today to find out if you've won!