After Martin's 2-yard TD put Baylor up 28-7 with 2:54 left in the first half, Kansas State scored 10 consecutive points before the break — and then got the ball to start the second half, only to have Klein throw his second interception.
Martin finished with 113 yards rushing.
There was a classic 13-yard run by Klein to start the second half, then two deep incompletions before he was picked off by Sam Holl, who returned it to the Kansas State 38. Four plays later, after a Florence 13-yard keeper, Martin scored on a 4-yard run to make it 35-17.
"We gained a little bit of momentum and we just couldn't sustain anything consistently over time," Klein said. "We definitely knew we were going to have to play well to win. They just played better than we did."
The Wildcats then got a 50-yard kickoff return from Tramaine Thompson, but Klein had three consecutive incompletions leading to a punt that pinned Baylor at its 1.
Florence threw an interception, Randall Evans grabbing the ball at the 1 but immediately getting dragged down by intended receiver Terrance Williams. Klein plunged in from a yard out on the next play, but that would be the last score for the Wildcats.
On the first play after Klein was picked off by Joe Williams in the end zone late in the third quarter, Seastrunk took a handoff and raced 80 yards for the score.
Chris Harper had 11 catches for 123 yards for the Wildcats.
Baylor scored less than 2 minutes into the game on Florence's 38-yard TD to Tevin Reese after completing passes to different receivers on each of the first four plays.
The Bears then tried a short kickoff that K-State recovered. To make it worse, a 15-yard penalty for interfering with the returner set the Wildcats up at the Baylor 38 and led to Klein's 8-yard TD run.
A holding call wiped out a 95-yard return by Antwan Goodley on the ensuing kickoff, but the Bears regrouped to go 75 yards in 11 plays for Florence's 12-yard TD run that made it 14-7.
Early in the second quarter, Klein was picked off by Williams on a deep throw.
K-State had a fumble recovery nullified by an offside call. The Wildcats jumped again on a third-and-9, and Florence took off running for a 10-yard gain, plus an additional 15 yards when Dante Barnett was flagged for unnecessary roughness for lowering his shoulder and a hard hit on the Baylor quarterback, who threw an interception two plays later.
About the only stretch that Klein really looked like himself was that closing 2 minutes of the first half.
On the first play after Martin's score, Klein threw a 36-yard pass to Harper and 5 yards to Tyler Lockett. After a pass interference penalty against Baylor in the end zone put the ball at the 7, Klein threw a TD to Harper,
Baylor then went three-and-out, with Barnett preventing a first down with his open-field tackle of Reese on third down.
The Wildcats then had a 10-play drive in 51 seconds, capped by Anthony Cantele's 23-yard field goal on the last play of the half, right after Thompson's 22-yard reception.