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GLENDALE, Ariz. (AP) His time on the ice done, John Chayka would turn to the tape, spending up to 25 hours to break down the game just played.

He tracked every player on the ice, every possession, touch of the puck, calculating the impact of every decision or movement on the ice.

The attention to detail, to making himself and his teammates better, led Chayka to co-found his own hockey analytics company. Now it’s helped him become the youngest general manager in NHL history, a meteoric rise even he didn’t see coming.

“It would be silly to suggest it wasn’t a little surprising,” said Chayka, named GM of the Arizona Coyotes on May 5. “It’s like anything in life; good fortune, good timing, a lot of that plays into it. I always just try to better myself every day, learn every day.”

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Chayka was like most Canadian kids growing up, playing hockey from a young age on a backyard rink in Jordan Station, Ontario. He had some skill, too, as a high-scoring winger who was good enough to be an Ontario Hockey League draft pick.

Instead of becoming a professional hockey player, Chayka took a different route to the highest level. He opted to attend college instead of playing in the OHL and suffered a back injury that ended any chance of a continued playing career.

Chayka liked the analytical aspect of hockey even when he was playing, logging numbers by hand while meticulously going through every play of each game. Once he teamed up with Neil Lane, a friend with an IT background, Chayka was able to vastly expand the data sets he could analyze.

Chayka and Lane co-founded Stathletes in 2009 and built it up, molding the hockey analytics company to serve the needs of NHL teams and players.

But in 2015, Chayka decided to make a change. The business was in good shape and the Coyotes wanted an analytics person, so he joined them as an assistant GM prior to the 2015-16 season.

“The company was in a position for the co-founder to step aside and let it grow, so it was good timing for me to do that,” Chayka said.

Timing worked out for Chayka again this spring.

After missing the playoffs for the fourth straight season, the Coyotes decided to make a change, firing general manager Don Maloney after nine seasons.

Instead of hiring an established hockey front-office man, the Coyotes took a bolder route, hiring the then-26-year-old Chayka, making him the youngest GM in NHL history and the first with a primarily analytical background.

“What people are going to find out about John as he becomes more well-known is he’s a very smart guy, a very intelligent guy,” Coyotes coach Dave Tippett said.

Those smarts, along with a year of watching the Coyotes operations from the inside out, have allowed Chayka to hit the ground sprinting.

Arizona had one of the highest-rated drafts, landing center Clayton Keller and defenseman Jakob Chychurn, players who could contribute quickly.

The Coyotes signed top-four defenseman Alex Goligoski after trading for his rights and added some scoring depth by signing left wing Jamie McGinn, who set career highs in goals and points last season. Arizona also signed captain Shane Doan to a one-year deal.

Chayka has retooled Arizona’s roster by combining his analytical approach with the traditional methods of evaluating players, dispelling the notion that he would be a numbers-only GM.

“It’s a good holistic approach where you’re weighing both options and ideas,” Chayka said. “Where you have agreements and consistency in your approach, then you have a better decision. When you have those disagreements is where you have real opportunity to learn from it. If the data disagrees with the eye or the eye disagrees with the data, now you have a real opportunity to understand why.”

The need to understand got Chayka to this unprecedented point. It should be the foundation to keep him climbing as well.