His pitching mechanics, however, are the product of a childhood spent with his brothers entertaining themselves by throwing tomahawks at things such as snakes and trees.

[1] Collmenter attended Homer High School, where he played baseball, basketball and football and graduated as the salutatorian of his class in 2004.

Collmenter finished his high school career with 49 wins, 23 shutouts, 546 strikeouts and a 0.99 ERA, all of which rank in the top six in state history.

He was a well-known figure that season for growing a mustache in the hope of turning the Silver Hawks fortunes around.

He split the 2010 season between the Rawhide, Mobile Bay Bears and Reno Aces, going a combined 14–8 with a 3.38 ERA in 25 starts.

[6] Collmenter made his major league debut on April 17, 2011, against the San Francisco Giants.

Although he does not possess superior velocity to his fastball (average 87 MPH), he relies on throwing a sizable amount of cutters and changeups to keep hitters off-balance.

In 2011, Collmenter got his first chance to pitch in the playoffs when he faced the Milwaukee Brewers in Game 3 of the Division Series.

[13] Collmenter made his Braves debut three days later, starting a game for the first time since June 7, 2015, and earning a win against the Washington Nationals.

Defensively, he handled 134 total chances (49 putouts, 85 assists) without an error for a perfect 1.000 fielding percentage.

[18] In 2018, Collmenter has been added to the New Zealand national baseball team U15 development squad as pitching coach.

[21] Collmenter was named as the New Zealand pitching coach for the 2021 World Baseball Classic Qualifier.