Published On: January 26th, 2022

Horner, Hartman, and Dower to join Krepline in the dugout this summer

Ashwaubenon, Wis.- The Green Bay Rockers are pleased to announce the coaches that will join field manager Chris Krepline in the dugout this summer. Pitching coach Pete Horner (McPherson College), hitting and third base coach Cody Hartman (Highlands College), and assistant and first base coach Colin Dower (Coppin State) are set to guide the Rockers on the field this summer.

Pete Horner is currently the pitching coach at McPherson College in Kansas where he utilizes modern technologies like Rapsodo, ProPlayAI, and high-speed video to create development programs for each individual pitcher he oversees. He plans to bring the same technologies to Green Bay where he will team up with field manager, Chris Krepline, on oversight of the pitching staff. Krepline, who is the head coach at Lawrence University in Appleton, also has extensive background as both a pitcher and pitching coach in the collegiate ranks and in the Northwoods League.

Prior to his current position at McPherson College, Horner was the assistant pitching coach at Des Moines Area Community College. He also is no stranger to summer ball, having served as the pitching coach for the Macon Bacon in the Coastal Plains League, Wilmington Sharks in the Coastal Plains League, and Wellsville Nitros in the New York Collegiate League. Horner earned his degree Bachelor of Science in Mathematics, Specialization in Data Science from Bowling Green State University. He is a native of Galva, Ohio.

“Pete’s detail to analytics and player development is astounding,” commented Rockers field manager Chris Krepline. “He is a great addition to the staff and will really help our pitchers play to their strengths.”

Cody Hartman, the hitting coach at Williston State College in North Dakota, will serve as third base coach and hitting coach for the Rockers. He spent last summer in the same role alongside Krepline as a coach for the Minnesota Mud Puppies of the Northwoods League. Prior to his time at Williston State College, Hartman spent three years coaching for Vista Ridge High School baseball in Colorado Springs. He is a graduate of Williston State College and is a native of Silverthorne, Colorado.

“Cody brings experience with a hitting background and having a love for pushing hitters to adapt,” commented Krepline. “He will bring some new school ideas to our early work that will keep our guys crushing all summer long.”

Colin Dower will round out Krepline’s staff as assistant and first base coach. He currently serves as an assistant coach at Coppin State University in Baltimore, Maryland where he also earned his bachelor’s degree in sports marketing and was a four-year starter in the infield for Coach Sherman Reed. He went on to earn his master’s degree from Ohio University in Coaching Education. Prior to his current position at Coppin State University, he served as an assistant coach at Bucks County Community College and spent the summer of 2021 with the Cortland Crush in the New York Collegiate League. Dower originally hails from Feasterville, Pennsylvania.

“Colin brings with him great enthusiasm and love for the game that will be sure to feed into our culture,” said Krepline. “He comes to us with a position player background and will be our first base coach.”

Season ticket packages, group tickets and the ever-popular Fleet Farm Flex Packs are available now. The Fleet Farm Flex Pack includes six tickets that can also be used for any games during the summer along with a $50 Capital Credit Union Park gift card, $10 Fleet Farm gift card and much more. Visit or call the ticket office at 920-497-7225 to reserve your seats today. The Rockers front office and Team Apparel Fan Shop at Capital Credit Union Park are located at 2231 Holmgren Way in Ashwaubenon. Office hours are Monday-Friday 8:30am-5pm.


The Green Bay Rockers are a member of the finest developmental league for elite college baseball players, the Northwoods League. Having completed its 28th season, the Northwoods League is the largest organized baseball league in the world with 22 teams, drawing significantly more fans, in a friendly ballpark experience, than any league of its kind. A valuable training ground for coaches, umpires and front office staff, over 270 Northwoods League players have advanced to Major League Baseball, including three-time All-Star and 2016 Roberto Clemente Award winner Curtis Granderson, three-time Cy Young Award winner Max Scherzer (LAD), two-time World Series Champions Ben Zobrist and Brandon Crawford (SFG) and World Series Champion Chris Sale (BOS). As well as 2019 Rookie of the Year and 2019/2021 Home Run Derby Champion Pete Alonso (NYM) and 2021 All-Star, MLB Gold Glove finalist and 2019 Second Team All-MLB shortstop Marcus Semien (TOR). All league games are viewable live via the Northwoods League website at For more information, visit or download the Northwoods League Mobile App on the Apple App Store or on Google Play and set the Rockers as your favorite team.

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