Martin Kaymer defeated Rafael Cabrera-Bello 2 and 1
How it ended: Cabrera-Bello made a birdie to won hole No. 14 but would get no closer. Both golfers parred out and Kaymer took the win.
Robert Garrigus defeated Louis Oosthuizen 3 and 2
How it ended: And down goes the final No. 1 seed. Yep, that's right, none of the four top seeds are left after Garrigus never let Oosthuizen have the lead.
On the Golf Channel after his match Garrigus was asked if he saw this win coming:
Fredrik Jacobson defeated Marcus Fraser 4 and 3
How it ended: Down goes Fraser? Jacobson led the whole way, never even letting Fraser have a look at an all square match. He will move on to face Robert Garrigus in the next round.
Shane Lowry defeated Carl Pettersson 6 and 5
How it ended: Cinderella story Lowry (he told Golf Channel he struggled to get to sleep last night) nailed a 25-foot birdie on No. 14 to put Pettersson away early. His bout with Rory McIlroy clearly didn't take much out of him.
Jason Day defeated Russell Henley 1 up in 19 holes
How it ended: Henley hit a monster 20-foot birdie on No. 18 to sent it to extras but Day knocked in a birdie of his own on the next hole for the win.
Bubba Watson defeated Jim Furyk 1 up in 22 holes
How it ended: It took a while, and Watson missed quite a few putts, but it was Furyk that bogeyed the 22nd hole to give Watson the win.
Here's what Watson had to say after his match:
— PGA TOUR (@PGATOUR) February 22, 2013
He's the only golfer ranked in the world top 10 left in the tournament.
Gonzalo Fdez-Castano defeated Charles Howell III 5 and 4
How it ended: Yesterday's Tiger-slayer (Howell) didn't win a hole today as Fdez-Castano used five birdies to put him away.
Steve Stricker defeated Nick Watney 1 up in 21 holes
How it ended: Stricker stuffed his shot on the par-3 third hole (21st overall) to four feet. He had missed a six-foot putt on the previous hole for the win but this one was conceded by Watney. He will face Scott Piercy in round three.
He was also rather humorous after the match.
Steve Stricker outlasts Nick Watney in 21 holes, will play Scott Piercy tomorrow. "I'm happier than you-know-what to move on." #MatchPlay— PGA TOUR (@PGATOUR) February 22, 2013
Graeme McDowell defeated Alex Noren 1 up in 20 holes
How it ended: In the bizarre ending of the day, Noren hit it in the desert but was given relief because he was behind a "temporary obstruction." However, he still couldn't get up and down and McDowell didn't even have to putt for his win. McDowell will face the Irish Cinderella story, Shane Lowry.
Webb Simpson defeated Peter Hanson 1 up
How it ended: Simpson sank a sweet birdie on the last hole to move on to the second round. The last match of the day was an entertaining one as only seven holes were halved. Simpson moves on to face Gonzalo Fdez-Castano in round three.