After suffering a shoulder injury that sidelined him for his junior season, the 6-2, 230-pounder is ready to go and 100% healthy for the spring.
"I'll be attending some camps this year so that schools can get more footage on me," said Hasselbach. "My senior year is going to be a focus for me."
"Stanford was awesome and the campus was phenomenal," said Hasselbach. "It's definitely one of my favorites."
Randy Hart is recruiting Hasselbach for Stanford, and he was his dad's position coach at Washington.
"Coach Hart was who I talked with mostly and I had some chances to talk to Coach (David) Shaw as well," said Hasselbach. "Coach Hart is definitely a big connection for me."
Hasselbach said that the Stanford coaches encouraged him to attend their camp this summer.
"I play defensive end at the moment but they like me as an outside linebacker so I'm going to go to their camp," said Hasselbach.
In fact, most schools like Hasselbach as an outside linebacker.
"I'll probably end up as an outside linebacker," said Hasselbach. "A couple of schools think I'm the prototype outside linebacker, and I'm big on the pass rush. But it depends on how the schools play the position."
Hasselbach has visited Colorado already and plans to see a few more Pac-12 schools this spring and summer.
Hasselbach also plans to camp at a number of schools.
"Arizona will be the first camp for me and I'll be going to the Colorado camp then I'm going over to Oregon and Stanford," said Hasselbach. "There could be others as well."
Colorado has been in steady contact with Hasselbach.
"I've talked to the new coach (Mike MacIntyre) and they're pretty cool and good guys," said Hasselbach. "They welcomed me really well and I was at their spring football practices and had a chance to talk with the coaches."
He also said he may visit his father's alma mater, Washington.
"I was planning on taking a trip out there at some point but I haven't heard as much from them so I'm not as big on them," said Hasselbach.
Hasselbach and Regis Jesuit return a loaded squad this fall.
"Our team this year will be phenomenal," said Hasselbach. "We have 10 returning starters coming back on both offense and on defense, and that's not counting who's coming back from injury. We had a good year last year for a very young team."
Academically, Hasselbach is near a 4.0 and is taking both the SAT and ACT this spring.