Check out the schedule

UFC Schedule
UFC Fight Night 13

Time Wednesday, April 2, 2008, at 7 p.m. ET on SpikeTV
Broomfield Event Center in Broomfield, Colorado
Main Event:
Kenny Florian (7-3) vs. Joe Lauzon (16-3)

Undercard:
170 lbs. Karo Parisyan (18-4) vs. Thiago Alves (13-3)
205 lbs. Matt Hamill (3-1) vs. Tim Boetsch (7-1)
205 lbs. Houston Alexander (8-2) vs. James Irvin (13-4)
155 lbs. Nate Diaz (8-2) vs. Kurt Pellegrino (11-3)
155 lbs. Frank Edgar (8-0) vs. Gray Maynard (4-0)
155 lbs. Spencer Fisher (20-4) vs. Marcus Aurelio (15-5)
155 lbs. Din Thomas (20-7) vs. Josh Neer (23-6-1)
155 lbs. Clay Guida (22-9) vs. Samy Schiavo (10-4)
155 lbs. Manny Gamburyan (7-2) vs. Jeff Cox (9-4)
170 lbs. George Sotiropoulos (8-2) vs. Roman Mitichyan (5-1)
170 lbs. Tommy Speer (9-2) vs. Anthony Johnson (4-1)

*Fight not yet officially confirmed by UFC.com.
UFC 83: “Serra vs. St. Pierre II”

Time Saturday, April 19, 2008, at 10 p.m. ET on pay-per-view (PPV)
The Bell Centre in Montreal, Canada
Main Event:
UFC Welterweight Champion Matt Serra vs. Interim UFC Welterweight Champion Georges St. Pierre

Undercard:
185 lbs. Rich Franklin (22-3) vs. Travis Lutter (9-4)
185 lbs. Kalib Starnes (8-2-1) vs. Nate Quarry (9-2)
185 lbs. Michael Bisping (15-1) vs. Charles McCarthy (10-4)
155 lbs. Mac Danzig (17-4-1) vs. Mark Bocek (5-1)
185 lbs. Alan Belcher (12-4) vs. Jason Day (15-5)
185 lbs. Jason MacDonald (19-9) vs. Joe Doerksen (39-11)
155 lbs. Sam Stout (13-3-1) vs. Rich Clementi (30-12-1)
185 lbs. Ed Herman (14-5) vs. Demian Maia (6-0)
265 lbs. Cain Velasquez (2-0) vs. Brad Morris (10-2)
170 lbs. Jonathan Goulet (21-9) vs. Kuniyoshi Hironaka (11-4)

*Fight not yet officially confirmed by UFC.com.
UFC 84

Time Saturday, May 24, 2008, at 10 p.m. ET on pay-per-view (PPV)
MGM Grand Garden Arena in Las Vegas, Nevada
Main Event:
UFC Lightweight Champion B.J. Penn (12-4-1)
vs.
Sean Sherk (32-2-1)*

Undercard:
205 lbs. Tito Ortiz (15-5-1) vs. Lyoto Machida (12-0)
205 lbs. Thiago Silva (12-0) vs. Antonio Mendes (14-2)*
205 lbs. Wanderlei Silva (31-8-1) vs. Keith Jardine (13-3-1)
205 lbs. Rameau Thierry Sokoudjou (4-2) vs. Kazuhiro Nakamura (11-7)*
185 lbs. Rousimar Palhares (7-1) vs. Ivan Salaverry (12-5)*
205 lbs. Goran Reljic (7-0) vs. Wilson Gouveia (10-4)*
170 lbs. Jon Koppenhaver (5-1) vs. TBA*
170 lbs. Dong Hyun Kim (9-1-1) vs. Jason Tan (5-2)*
155 lbs. Terry Etim (10-1) vs. Jeremy Stephens (13-2)*
265 lbs. Shane Carwin (8-0) vs. Christian Wellisch (8-3)*

*Fight not yet officially confirmed by UFC.com.
UFC 85

Time Saturday, June 7, 2008, on pay-per-view (PPV)
The O2 Arena in London, England
Main Event:
Chuck Liddell (21-5) vs. Rashad Evans (11-0-1)

Undercard:
265 lbs. Brandon Vera (8-1) vs. Fabricio Werdum (10-3-1)
170 lbs Mike Swick (11-2)* vs. Marcus Davis (14-3)*
185 lbs. Martin Kampmann (15-2) vs. Jorge Rivera (15-6)*
185 lbs. Nate Marquardt (26-7) vs. Thales Leites (12-1)*
170 lbs. Roan Carneiro (12-6) vs. Ryo Chonan (14-8)*
155 lbs Thiago Tavares (13-1) vs. Matt Wiman (9-3)*