Suiting up for the Dream Vision 17's team, Zimmerman showed an advanced offensive package and was efficient from the field throughout the three-day event in Duncanville (Tex.).
Zimmerman's scoring ability impressed, as he showed moves on the block and even faced the rim and made plays. He helped lead the Dream Vision squad to the Gold division championship.
"I thought I did progressively better throughout the weekend," Zimmerman told Scout.com. "Playing with school is a lot different than playing here. This was my warm up tournament, I'll be picking it up."
If that's Zimmerman's warm up event, he's primed for a big spring and summer. To go with the scoring ability he showed, he also impacted the game by contesting and blocking shots.
"I like to think that another strength is shot blocking and being able to contest shots and change them up, but I'm just trying to contribute whatever I can to help my team win," Zimmerman said.
Recruiting wise, Zimmerman, a five-star center, has a number of high major programs actively pursuing him.
"It's pretty good right now," he said of his recruitment. "I've been hearing it's going to all pick up soon."
USC also offered Zimmerman following the adidas Exclusive Run. USC head coach Andy Enfield was among the coaches watching him at the event. Indiana and Michigan also have also reached out since the weekend.
The 2015 prospect has already taken a couple of unofficial visits. He's been to UNLV, UCLA and most recently Arizona.
"It was pretty good," Zimmerman said of his trip to Arizona. "I like the school and it's a great campus and everything."
Zimmerman said he's been in touch with the new staff at UCLA and they told him they'd be recruiting him.
"They brought back my scholarship," he said.
Zimmerman is regarded as Scout.com's No. 5 overall recruit in the 2015 class.