Join Matt Bishop and Neil Wagner tonight for open discussion and live scoring for tonight's UFC 100, which is headlined by an undisputed heavyweight championship fight between Brock Lesnar and Frank Mir.

And don't forget to join the Lights Out Radio crew at 1:30 a.m. ET/10:30 p.m. PT for their UFC 100 Review show. You can call in at (347) 202-0934 or e-mail wagner@lightsoutradio.com

UFC 100 coverage

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Middleweight bout:

Yoshihiro Akiyama vs. Alan Belcher

Big moments (Round 1) - Akiyama's high kicks are fast. Belcher hits Akiyama low. Belcher drops Akiyama with just more than two minutes left. Great kick/punch combo by Akiyama snaps Belcher's head back. Now they're slugging. Akiyama with a kick catch/punch takedown late.

Matt Bishop scores the round 10-9 Akiyama

Neil Wagner scores the round 10-9 Akiyama

Big moments (Round 2) - Akiyama gets a takedown and is in side control then into guard. They stand with two minutes left. They trade. Belcher lands some nice leg kicks as the round ends.

Matt Bishop scores the round 10-9 Akiyama

Neil Wagner scores the round 10-9 Akiyama

Big moments (Round 3) - Akiyama is poked in the eye. Nice combo by Akiyama. Great body shot by Belcher. Akiyama is tiring. Belcher using leg kicks effectively. Akiyama keeps blinking his left eye and it's almost closed. Spinning back kick by Akiyama. Akiyama barely ducks a huge high kick. Akiyama tags Belcher. Akiyama tags Belcher again. Huge Superman punch by Belcher. Akiyama takedown with 20 seconds left. Belcher back up.

Matt Bishop scores the round 10-9 Belcher (29-28 Akiyama)

Neil Wagner scores the round 10-9 Belcher (29-28 Akiyama)

Official decision: Yoshihiro Akiyama 30-27, Alan Belcher 29-28, Akiyama 29-28

Middleweight bout:

Dan Henderson vs. Michael Bisping

Big moments (Round 1) - Henderson looking to uncork the right but Bisping is fast. Henderson tees off but Bisping looks to be OK. USA chants. Henderson is not afraid of Bisping's strikes. Bisping moving around a lot. Could he be trying to tire out Dan? Knees to the body against the cage by Henderson. They break with 30 seconds left. Bisping tries a pathetic takedown to a chorus of boos. Henderson tags Bisping at the end of the round.

Matt Bishop scores the round 10-9 Henderson

Neil Wagner scores the round 10-9 Henderson

Big moments (2nd round) - Huge right by Henderson slams Bisping. Henderson really pushing the action. Henderson chasing Bisping. A kick/punch combo by Henderson cold cocks Bisping stiff. The official time is 3:20. The ending was similar to how Randy Couture dropped Tim Sylvia at the beginning of their fight.

Henderson believes he has earned another shot at Anderson Silva, but will do whatever the UFC wants him to do.

Welterweight Championship:

Georges St-Pierre vs. Thiago Alves

Big moments (1st round) - Alves landed a good leg kick. GSP got a takedown and eventually got his back. Thiago rolls and stands. GSP gets another takedown with about 20 seconds left.

Matt Bishop scores the round 10-9 St-Pierre

Neil Wagner scores the bout 10-9 St-Pierre

Big moments (2nd round) - GSP got a takedown and worked Alves over on the ground. Alves' nose night be broken. Alves gets up with about 15 seconds to go. Alves face is bleeding heavily.

Matt Bishop scores the round 10-9 St-Pierre

Neil Wagner scores the bout 10-9 St-Pierre

Big moments (3rd round) - They stand for the first two minutes with neither landing much of significance. GSP gets a takedown. Alves uses pure strength to power up after about a minute. St-Pierre drops Alves with 40 seconds left in the round. GSP pounces but Alves recovers well. GSP finishes the round in Alves' guard.

Matt Bishop scores the round 10-9 St-Pierre

Neil Wagner scores the bout 10-9 St-Pierre

Big moments (4th round) - Crowd goes wild for Lyoto Machida when he's shown on the screen prior to the round. GSP gets a huge power double leg. GSP gets to mount and flirts with an arm-triangle to no close avail. GSP takes his back but gets too high and Alves rolls into his guard. GSP gets up. Uppercut by Alves. GSP catches a kick and takes him down with a punch with about 55 seconds left. GSP passes. GSP laying in with knees to the body. Takes his back again. Looking for the rear-naked choke. Thiago is battling. Round's over.

Matt Bishop scores the round 10-9 St-Pierre

Neil Wagner scores the bout 10-9 St-Pierre

Big moments (5th round) - GSP told his corner he's pulled his groin. Greg Jackson says it doesn't matter and to "hit him with your groin." Thiago is desperate and is landing better than he was before but GSP takes him down a minute in. They get back up and clinch against the cage and break. Alves misses a punch and GSP drives in, slips down his legs a bit but regroups against the cage and scoops and slams him. Eighth takedown of the fight for GSP. Alves is up with 1:50 to go. GSP ducks another punch and takes him back down with 90 seconds left. GSP working ground and pound. It's over.

Matt Bishop scores the round 10-9 St-Pierre (50-45 St-Pierre)

Neil Wagner scores the bout 10-9 St-Pierre (50-45 St-Pierre)

Official scores: 50-45, 50-44, 50-45 all for Georges St-Pierre (retains welterweight championship)

Undisputed Heavyweight Championship:

Brock Lesnar vs. Frank Mir

Big moments (Round 1) - Lesnar hits Mir hard initially and then takes him down. He is plodding but Mir's face is showing severe signs of wear from ground-and-pound. Lesnar staying close to Mir. Mir's face does not look good.

Matt Bishop scores the round 10-9 Lesnar

Neil Wagner scores the round 10-9 Lesnar

Big moments (Round 2) - Mir opens up with some strikes and rocks Lesnar with a punch and two knees, the second being a flying knee. Lesnar gets a takedown and is laying there to recover. Lesnar is now going again and is tagging Mir. Herb Dean gives Mir a lot of leeway but stops it. Mir is out and his face is a mess.

Lesnar's "annoying" ground-and-pound has put Mir away in a big way.

The official time is 1:48 of the round.

Welterweight bout:

Jon Fitch vs. Paulo Thiago

1st round:

Matt Bishop scores the round 10-9 Thiago

Neil Wagner scores the round 10-9 Thiago

2nd round:

Matt Bishop scores the round 10-9 Fitch

Neil Wagner scores the round 10-9 Fitch

3rd round:

Matt Bishop scores the round 10-9 Fitch (29-28 Fitch)

Neil Wagner scores the round 10-9 Fitch (29-28 Fitch)

Official decision: 30-27, 29-28x2 for Jon Fitch