The Jayhawks, who evened the series at one apiece, improved to 36-19 overall and 14-12 in Big 12 play. Kansas State fell to 39-14-1 overall and 14-10-1 in conference play, while it was the Wildcats first loss to Kansas in the last nine contests.
Kansas State did have plenty of chances in the game as it left 10 runners on base, including a pair of bases-loaded situations in the fifth and sixth innings. Walz was able to escape both threats by striking out Carter Jurica to end the fifth, while Rob Vaughn flew out in the sixth.
Walz (8-1), who set a career high for strikeouts, allowed one run on five hits with just two walks. The right-hander struck out seven of the first 11 batters he faced to.
The No. 2, 3 and 4 hitters in the Kansas lineup – Robby Price, Brian Heere and Buck Afenir – combined to go 8-for-14 with two home runs and four RBI.
K-State starter Lance Hoge (5-4) suffered the loss as the left-hander gave up five runs on five hits in two innings of work.
Kansas State freshmen relievers Kayvon Bahramzadeh and Kyle Hunter were impressive in the latter stages of the game as combined to throw 1.2 shutout innings, allowing just one hit.
Seniors Drew Biery and Vaughn tallied home runs, but both were of the solo variety. Biery, Jordan Cruz and Jurica each tallied two hits to pace a 10-hit effort by Kansas State.
Kansas scored a run in the first frame when it loaded the bases with a one-out walk and a pair of singles. Tony Thompson was next and hit what looked to be an inning-ending double play to Biery at short, but Jurica's throw to first pulled Justin Bloxom off the bag, allowing the Jayhawks to score the first run.
KU came back with three runs in the second frame as Preston Land walked and scored from first on a Zac Elgie double down the left-field line. Elgie then moved to third on a Jason Brunansky single and scored on a sacrifice fly to push the Jayhawk lead to three.
Price was next and singled to move Brunansky to third before a passed ball brought home the third run of the frame.
The Wildcats tried to chip away at the Kansas lead in the third on Vaughn's fourth home run of the year, a one-out shot over the left-field wall, but Kansas was able to get that run back in the bottom half of the inning when Elgie tallied his second double of the game, this one off the wall in center field, to make the score 5-1.
The K-State deficit swelled to eight when Afenir hit a two-run homer over the right-field wall in the fourth before a Price solo homer and a Casey Lytle RBI single in the sixth made the score 9-1.
K-State plated runs in the seventh and eighth frames on a RBI groundout by Nick Martini and Biery's ninth home run of the season.
The rubber match between Kansas State and Kansas is scheduled for a 6:06 p.m. first pitch Sunday at Hoglund Ballpark. The game will be televised nationally on FSN with Greg Lucas and Jack Lazorko calling the action.