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09.25.2026College Men
Dom Peterson Tribute.
Dom Peterson passed away September 4, 2026.
Author: Alex Goff

The thing everyone seems to miss is the smile.

No matter what was going on, Dominic Peterson was all smiles. Saint Mary's Men's Rugby Head Coach Tim O'Brien indulged in a bit of self-teasing, saying "I'll get annoyed with things and all I could say to Dom was, 'stop smiling so much!'"

Hard days, easy days ... always rugby days, Dom was smiling.

As reported in GRR and elsewhere, Dominic Peterson was running the standard back-to-training two-mile run at Saint Mary's when he collapsed, and despite heroic efforts from his teammates and from first responders, died.

Peterson was an outstanding rugby player. He was on the CRAA U19 team that won the RAN U19 Championships, playing both lock and flanker. Entering into his sophomore season he was set to get significant A-side minutes. He was fit, in the top five on the team on that two-mile run, and loved to train.

Dom Peterson CRAA U19s Lineout
Dominic Peterson goes up for a lineout throw for the CRAA U19s in Mexico. Photo @gabryedsphoto
Dominic Peterson goes up for a lineout throw for the CRAA U19s in Mexico. Photo @gabryedsphoto.

After his death the Peterson family said in interviews that Dominic had been working out and training all summer.

"At this point, we don't actually know the technical component of his passing, so that's something we have great interest in because he was such a fit kid," his father, Robert Peterson, told CBS News, adding that Dominic had spent “all summer running every hill in our neighborhood.”

But on that run at Saint Mary's he was dropping behind a bit. Then, with about 200 meters to go in the run, he started to stagger, and he felt. Last year's team captain, Mario Storti, was accompanying the runners on a bike as he is recovering from an injury. A trained lifeguard, Storti leapt into action to help. Dominic got up, and then fell again. Storti began CPR and players called 911. EMTs, in a truck driven by a former Cal rugby player, arrived within five minutes.

But he was, tragically, beyond saving. No one in such a situation could have received faster care, and he was gone anyway.

O'Brien Moves Quickly

In a situation like this, it is traumatic when a young teammate or friend dies, but it is even more so when you see it happen. Standing in the waiting room in the hospital, seeing the tragedy unfold, O'Brien moved quickly to alleviate further pain. He called a friend who was an expert in the grief counseling field. "We need help, now," he said.

"It's been hard on the guys," said club president Andrew Jullien. "It's definitely makes you put life in perspective. I hope no one else has to go through that experience."

Dominic died on Friday, September 4. O'Brien spoke with campus chaplain Fr. B. Kwame Assenyoh about  holding a meeting at the Saint Mary's Chapel the next morning. That quickly became a full Catholic mass, which was packed with Saint Mary's people, those from East Palo Alto Rugby where Dominic played as a high-schooler, and more.

The players were immediately funneled into grief counseling. The counseling groups were split into different classes so the groups could be smaller.

The importance O'Brien's quick action to get his players counseling can hardly be overstated. No player was left alone with the pain. Instead, the benefit of being in a group like a rugby team was leveraged—they came together, as you imagine they would, but O'Brien also made sure they had help.

"I's incredible," said this season's captain, Matthew Abbes. "At 19 you're just getting going in life. He was passionate about what he did. It doesn't have to be rugby, but when you're in a group when you spend a lot of time together, you become really close. It's a struggle."

Abbes, as captain, opted to sit in the grief counseling sessions with the sophomores, the year Dominic was in. It was a thoughtful move by him as he recognized that this was the group hit the absolute hardest.

Pretty soon, the questions started to come up. Do we take a break. Do we stop training for a couple of weeks?

Do We Play?

It seemed clear that the Peterson family, long supporters of Saint Mary's Rugby—Robert Peterson coaches the game—didn't want that. No one really believed that Dominic would have wanted that.

"We pretty much decided that, no, we should't be away from each other," said Abbes. "We needed to be together and not leave anyone alone. School is hard as it is. We need to keep moving forward."

Dominic Peterson with the CRAA U19s in Mexico. Photo @gabryedsphoto.

"We needed to find the good in the bad," added Jullien. "We're player driven and we all agreed to get back to training. Dom would have wanted us to be together and while this is tragic, you can't stop living; you've got to keep going."

Getting together allowed the players to remember and talk about Dominic, and not make him a taboo subject.

"Dom ... he was a great player but an even better teammate," said Jullien. "He is ... was ... the nicest kid. He always volunteered for extra stuff. He was not a mean kid at all, but he played rugby with a lot of intensity. When we were on tour in New Zealand the boys would go out and the older guys would buy food for the younger guys. He was always thankful, one of the best dudes on the team. He was just a great person."

The Family

Rugby has been the refuge for Dominic's friends, and even his family, in a way. This weekend, Saint Mary's will play in the West Coast 7s for the first time in many years. That was the plan all along, and while the team considered pulling out, playing in the tournament ended up being what everyone felt would be the right thing for everyone.

The Peterson family has reportedly supported that decision, and the team has been doing what they can for the family.

"We're been involved a ton with the family," said Jullien. "They are just the sweetest people I've ever met and I don't know how they've been so strong. We're working on a design for our gear to honor Dom and they are having the final say on that. Mr. Peterson thanks Tim for everything he did for Dom and we feel they are 100% part of the Saint Mary's rugby family."

And the rugby family is pretty big.

Dominic Peterson smiling, in headgear, after a try. Photo @gabryedsphoto.

"The support from the rugby community," said O'Brien, "has been unbelievable."

Don't expect to see the #5 on anyone's back this season, as the number is likely going to be retired for the season. That's just one of the many things the team will do to honor their teammate. But perhaps the most poignant might be to get to practice, to play the game, and ... to smile.

"What we all remember about Dom is his energy, and his smile," said Abbes. "His smile was hard to miss. Whatever we were doing, however tough it was, he was always in a good mood."
 

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