GAINESVILLE, Fla. -- Tim Tebow and No. 11 Florida looked like the juggernaut everyone expected this season.

Tebow threw two touchdown passes to Percy Harvin and ran for a score, and the Gators thumped defending national champion LSU 51-21 Saturday night in The Swamp.

The fourth-ranked Tigers (4-1, 2-1 Southeastern Conference) had won six consecutive games, 19 in a row at night and 23 straight in regulation. Florida (5-1, 3-1) ended all those streaks with a fast start and some huge plays from Tebow, Harvin, Jeff Demps and Brandon Spikes.

The Gators also may have put to rest all those uneasy feelings about an inconsistent offense and a suspect defense. They enjoyed their best game of the season -- maybe their best game since beating Ohio State 41-14 in Arizona for the 2006 national title.

LSU, meanwhile, lost for the first time in regulation since falling 23-10 two years ago in Gainesville -- taking the worst beating of coach Les Miles' four-year career with the Tigers. They had three turnovers, a near interception that went for a touchdown and a costly face-mask penalty.

LSU trailed 20-0 late in the first half, but scored touchdowns going into the locker room and coming out to make it a game and put all the pressure on Florida.

Tebow hardly flinched, responding with a 67-yard TD drive that included a perfect pass to Louis Murphy down the sideline and a few nifty runs.

The Gators pulled away from there, getting a 42-yard TD run from Demps, a 52-yard interception return for a score from Spikes and a short TD run from Kestahn Moore.

Tebow finished 14-of-21 passing for 210 yards. He also ran 12 times for 22 yards. Harvin had six catches for 112 yards.

Jarrett Lee, a freshman making his first SEC road start for LSU, was 23-of-38 passing for 209 yards, with two touchdowns and two interceptions. Charles Scott, who had run for 100 yards in each of his first four games, finished with 35 yards on 12 carries for the Tigers.

Florida 51, LSU 21

LSU 0 7 7 7--21

Florida 17 3 14 17--51

First Quarter

Fla -- Harvin 70 pass from Tebow (Phillips kick), 13:22.

Fla -- FG Phillips 20, 7:00.

Fla -- Harvin 7 pass from Tebow (Phillips kick), 1:09.

Second Quarter

Fla -- FG Phillips 34, :49.

LSU -- C.Mitchell 6 pass from Lee (David kick), :05.

Third Quarter

LSU -- Hatch 3 run (David kick), 8:41.

Fla -- Tebow 2 run (Phillips kick), 4:16.

Fla -- Demps 42 run (Phillips kick), 1:02.

Fourth Quarter

Fla -- Spikes 52 interception return (Phillips kick), 14:48.

LSU -- Dickson 6 pass from Lee (David kick), 11:10.

Fla -- FG Phillips 25, 6:47.

Fla -- K.Moore 2 run (Phillips kick), 2:03.

A -- 90,684.

LSU Fla

First downs 19 22

Rushes-yards 26-80 41-265

Passing 241 210

Comp-Att-Int 25-41-2 14-21-0

Return Yards 0 102

Punts-Avg. 4-45.5 2-29.5

Fumbles-Lost 2-1 1-1

Penalties-Yards 6-40 6-53

Time of Possession 27:40 32:20

INDIVIDUAL STATISTICS

RUSHING -- LSU, Scott 12-35, Holliday 2-26, Murphy 4-19, Hatch 4-14, K.Williams 2-1, Lee 2-(minus 15). Florida, Demps 10-129, Rainey 11-66, K.Moore 4-23, Tebow 12-22, Harvin 2-13, James 2-12.

PASSING -- LSU, Lee 23-38-2-209, Hatch 2-3-0-32. Florida, Tebow 14-21-0-210.

RECEIVING -- LSU, LaFell 7-59, Byrd 6-73, Dickson 6-36, Toliver 2-32, Holliday 1-18, K.Williams 1-9, Scott 1-8, C.Mitchell 1-6. Florida, Harvin 6-112, Thompson 2-26, Cooper 2-19, Hernandez 2-5, Murphy 1-37, Demps 1-11.