RATHDRUM - One minute you're cruising to the state semifinals.

The next, the wheels come off, and you're trying to figure out what went wrong.

Rigby junior quarterback Hayden Livingston scrambled 11 yards for a touchdown with 2:08 remaining, and the Trojans tacked on a two-point conversion - capping a 29 point rally - as Rigby stunned the Lakeland Hawks 29-28 in the quarterfinals of the state 4A football playoffs Saturday at Corbit Field.

"I've been on the wrong side of games like that, and I've been on the right side," Lakeland coach Tim Kiefer said. "In games like that, you can look at game film and 50 different things that could have changed the outcome, but it will just drive you crazy."

Lakeland, in the playoffs for the second straight year, and for the third time in four seasons, finished 7-3.

Rigby (6-4) advances to the semifinals at Bishop Kelly of Boise on Friday.

Lakeland opened the game in the wildcat formation, with Chris Washburn taking snaps from under center and quarterback Tyrel Derrick out at wide receiver.

"We'd had it in for a while, but never really ran it that much," Kiefer said. "We were just trying to use it at the right time and it was something that we went to and felt we could take advantage of some things."

And they did, jumping out to a 7-0 lead on a 2-yard touchdown run by Tuekota Tate-Vandever. After a defensive stop at its own 8-yard line, Lakeland struck again on a reverse pass from Derrick to Dylan Piva, who ran 72 yards untouched to give the Hawks a 14-0 lead.

A little over three minutes later Derrick, back playing quarterback, connected with Jason Rose on a 30-yard touchdown, giving Lakeland a 21-0 lead with 4:18 remaining in the half. Washburn intercepted a pass at midfield and returned it 50 yards for a touchdown, giving the Hawks a 28-0 lead with 2:29 remaining in the half.

Then, just as quickly as they built the lead, it started to fade away.

Rigby, set up by an interception by Haydn Landon at the 38-yard line, got on the board with six seconds remaining on a pass from Livingston to sophomore Braden Perrenoud to cut it to 28-7 at halftime.

Livingston added touchdown passes to Tyrel Phillips and Connor Francia in the second half, pulling Rigby to within a 28-21 deficit with 8:07 remaining.

"I'm proud of our kids," Kiefer said. "They played hard. We had that interception at the end of the half, and another fumble, which they didn't get. It's just another example of how things could have gone the other way, and it would have changed that slow bleed in the second half, and it just didn't happen. And that's the bottom line."

Lakeland also committed eight penalties for 85 yards, helping Rigby total 15 first downs - 10 coming in the second half. With a chance to tie the game in the final two minutes, a Lakeland screen pass was intercepted by Solo Taylor at the 45-yard line to finish the game.

"There were a couple of situations with key errors or penalties," Kiefer said. "It just seemed like something would come up and derail a drive for us. We tried to grind the ball on them in the second half, and they packed the box and we didn't execute. Maybe we were a little less aggressive, or weren't aggressive enough in the second half, but that's the way it bounces sometimes."

On the conversion, Livingston faked a quarterback draw, pulled up behind the line of scrimmage and threw a jump pass to Perrenoud in the back of the end zone to take the 29-28 lead.

Livingston threw for 266 yards in the second half, and did not throw an interception after throwing two in the first half and losing a fumble.

"Before the game, we talked about the teams that beat themselves are the ones that are going to lose," second-year Rigby coach Randy Waite said. "And I thought we beat ourselves in the first half. We had some turnovers and they played a heck of a first half. We got down, but had some chances, but we played the second half of football with the attitude to not look at the scoreboard, and just see if we were ahead at the end. We played a bad first half, but the kids bought into what we've been telling them all year and did exactly what we needed to do to play again. We earned ourselves another week, and we're good enough to earn that spot."

Washburn finished the game with 96 yards (48 rushing, 48 receiving) for Lakeland. The Hawks were looking for their first playoff win since 2007.

"We wanted to get off fast, and we did in taking that early lead," Washburn said. "But it comes down to what happens late in the game, and we didn't have enough to finish it. That interception was huge, and probably going to be one of my biggest memories in the future."

Rigby 0 7 7 15 - 29

Lakeland 7 21 0 0 - 28

First quarter

LL - Tuekota Tate-Vandever 2 run (Cade Coffey kick), 4:51

Second quarter

LL - Dylan Piva 72 pass from Tyrel Derrick (Coffey kick), 7:33

LL - Jason Rose 30 pass from Derrick (Coffey kick), 4:18

LL - Chris Washburn 50 interception return (Coffey kick), 2:29

Rig - Braden Perrenoud 1 pass from Hayden Livingston (Tyrel Phillips kick), :06.

Third quarter

Rig - Phillips 35 pass from Livingston (Phillips kick), 4:14

Fourth quarter

Rig - Connor Francia 5 pass from Livingston (Phillips kick), 8:07

Rig - Livingston 11 run (Perrenoud pass from Phillips), 2:09

INDIVIDUAL STATISTICS

RUSHING - Rig, Zagula, 15-72, Livingston, 10-70, Taylor, 1-(-2), Phillips, 1-(-3). LL, Tate-Vandever, 6-(-7), Washburn, 9-48, Piva, 3-20, Derrick, 11-52, Marshall, 3-16, Bodak, 2-0.

PASSING - Rig, Livingston, 16-39-2-317, Phillips, 1-1-0-10. LL, Derrick, 6-17-3-166, Cooper, 1-1-0-5.

RECEIVING - Rig, Landon, 11-193, Billups, 6-89, Zagula, 2-12, Taylor, 1-20, Francia, 2-14. LL, Piva, 1-72, Rose, 1-30, Bodak, 1-16, Tate-Vandever, 1-5, Washburn, 4-48.