In an era when baseball is enamored with triple-digit fastballs and 94 mph “off-speed” pitches, Trey Dombroski is an anomaly. 

Dombroski — a lanky, 6-foot-5 left-handed pitcher out of Monmouth University — is projected to be an early round pick in the MLB Draft, which begins Sunday. In June, The Athletic pegged Dombroski as the 52nd-best prospect. And Dombroski has scaled big boards without the aid of velocity, which is so often a requisite in today’s game. 

“For me, velocity is not a big deal because that’s not really who I am,” Dombroski told The Post. 

It’s a formative conclusion that 21-year-old college pitchers may struggle to grasp. But Dombroski is self-assured and content with his fastball, which typically hovers around 91 mph. 

Dombroski came to embrace his pitching style the summer before his junior year, which he spent pitching for the Harwich Mariners of the Cape Cod League. 

“That’s when I learned how to put it all together,” Dombroski, a Manasquan, N.J., native, said. 

He began the summer on a temporary contract, residing on the margins of the Harwich roster, and pitched out of the bullpen for the first time in his career. After two successful relief appearances — and with the deadline to extend temporary contracts looming — Dombroski’s manager summoned him into his office. 

“My coach was like, ‘What are you doing the rest of the summer?’ ” Dombroski recalled. “And I said, ‘Hopefully staying here.’ He was like, ‘Deal. You’re gonna be here for the rest of the summer and, even better, we’re gonna make you a starter.’ Now I’m like, ‘Holy s–t.’ ” 

But with an increased opportunity came a challenge. The Cape Cod League is one of the nation’s premier summer circuits, an oasis for the game’s budding stars to hone their craft under the watchful eyes of scouts and coaches. So picture Dombroski — a soft-tosser from Monmouth in the Metro Atlantic Athletic Conference — amid a crop of players from the sport’s typical goliaths. 

“You’re reading the rosters like, ‘Holy crap,’ ” Dombroski said. “I was a small fish in a gigantic college. And I had something to prove, because I wanted to show them that college baseball at the mid-major level is still the same game as the Power Five.” 

To do so, Dombroski learned to trust himself. He relied on his slider, his best pitch, and grew more comfortable with his curveball and changeup, mastering the ability to throw each pitch on any count. He created different variations — for instance, a big, sweeping slider and a short, more compact slider — to serve different purposes over the course of a game. 

He stressed three core tenets: command, deception and sequencing. 

“What was big for me was just going out there, you don’t try to be someone you can’t, because being somebody you can’t is very hard to do,” Dombroski said. 

That strategy proved nearly flawless. Dombroski dominated the Cape, pitching to a league-best 0.85 ERA with a league-high 45 strikeouts, earning the BFC Whitehouse Outstanding Pitcher award. 

“He went up there with the best in the country and was as successful as anyone,” said Dean Ehehalt, Dombroski’s head coach at Monmouth. “He measured himself with what other guys could do and just took off.” 

When he returned to Monmouth for his junior season, Dombroski applied those lessons and flourished, posting a 3.13 ERA with 120 strikeouts in 95 innings. And while he touched 95 mph on the radar gun, he preferred not to risk growing tired and compromising his main goal: six innings and two runs or fewer in each start. 

“I take a different approach to pitching than most guys,” Dombroski said. “A lot of guys like to grip it and rip it. All hard fastballs, hard sliders. For me, it’s the ability to take something off. You just lean on yourself and trust what you’re good at.” 

That philosophy has steered him to the verge of a professional career. Only five Monmouth players have gone on to reach the big leagues. The Red Sox selected Pat Light in the first-round in 2012, though Light had just a three-year MLB career. Brad Brach, a 42nd-round pick by the Padres in 2008, has been more successful, carving out an 11-year career as a reliable bullpen arm. 

Dombroski may well push that list to six. 

“He has his whole future in front of him and I know he’s gonna fire his best shot moving forward,” Ehehalt said. 

Dombroski will — it just may not be the fastest.