"He's a little guy but he plays big for his size," said Iowa captain Cal O'Reilly, Mayhew's linemate for most of this season. "He plays hard, he goes to hard areas, he makes plays, and he can score. The way he's played this year, and played for us here in the playoffs, there's no doubt he can play at the next level."
Over his two seasons in Des Moines, Mayhew has slowly earned more and more leash from his coaches. Derek Lalonde, himself a former Ferris State assistant coach, brought him to Iowa for 17 games following the conclusion of Mayhew's senior season.
He then played in 72 games last season, scoring 16 goals and 32 points. Lalonde left for a job in the NHL last summer, but Mayhew's ascent has continued under first-year head coach Tim Army.
"I think it's just experience in the league now," Mayhew said. "And maybe I'm getting a little more playing time than I did last year, which is really nice, playing power play. I'm playing with Cal O'Reilly, who is one of the elite players in our league. He could be in the NHL ... but he's helped me grow."
One of his biggest fans is Iowa assistant coach Brett McLean, a veteran of 385 NHL games. McLean played nearly two decades of pro hockey in both North America and in Europe, retiring in 2017 and joining the Iowa coaching staff before Mayhew's first full pro campaign.
"It's a great story of how, if you have belief in yourself and you do the right things day in and day out, look at what you can accomplish," McLean said. "Gerry came in from day one last year in Traverse City and right from the start, has been the hardest worker every day. He competes, in practice, he takes care of himself, first to the rink, last to leave. And his game has just grown by leaps and bounds."
McLean doesn't disagree that his praise of Mayhew seems like a cliche. Nice guy, works hard, good team guy ... but in the case of Mayhew, McLean says it's all true.
For a development league like the AHL, Mayhew's story is exactly the kind of tale the Iowa coaching staff can share with any young player that faced similar long odds like he did.
Too small, undrafted, four-year college guy, AHL contract, but if one works at it, one can accomplish his goals.
"It's right, using the word cliche, because you could use so many of them," McLean said. "It's a great tool for us to be able to say to guys, 'If you work hard, play the right way and do the right things, you can earn yourself a spot here. You're gonna have to earn it, because it's gonna be competitive, but when you earn a spot here, you can earn yourself an NHL contract."
McLean marvels at the energy Mayhew brings to the rink, not just for games, but for practice as well.