BYU’s running back depth chart has been stripped down by a mix of injuries, roster decisions, and plain bad timing, and now the Cougars are left piecing together the position with backups just four games into the season.
The latest blow came with LJ Martin, whose injury turned out to be more serious than first thought. He will miss at least four weeks, forcing BYU to lean on Preston Rex, Journee Tonga and Devaughn Eka.
That group looks a lot different now than it did in March, when Rex was still a converted safety and Tonga and Eka were both true freshmen sitting no higher than third or fourth on the depth chart. The three have combined for 368 rushing yards in their careers.
That is not exactly the kind of cushion a team wants when it is fighting for a spot in the Big 12 championship game.
The Cougars actually entered spring camp with Martin and Sione Moa as the clear top two backs, with Jovesa Damuni behind them. All three had already dealt with injuries at BYU, and the program still bet on that group holding together. It was a calculated gamble, especially after BYU chose not to bring in a running back from the transfer portal.
That decision mattered once the injuries started stacking up. Damuni suffered a severe injury in spring camp and has not played since.
Moa lasted only six carries before suffering what could become a season-ending injury. By the end of the first quarter against Utah Tech, BYU had already lost two of its top three running backs.
Then Martin went down against TCU, and once he exited, BYU’s offense had trouble moving the ball.
The injury luck has not been on BYU’s side so far in 2026.
There is also a longer recruiting story underneath all of this. BYU’s running back room has been shaped by recruiting classes from 2021 through 2023, because it can take years for those players to work their way into the program.
Martin stood out as a prized flip from Stanford to BYU, and he was the only running back on the roster with a competing P4 offer. Beyond him, the Cougars simply have not stocked the position at the same level as some others on the roster.
That is why the gap between Martin and everyone else looks so wide. Eka and Tonga are among BYU’s better running back prospects from the last two years, but they are still inexperienced, and the staff may need to be careful about how it uses them.
Attrition has also played a major role. BYU signed Cale Breslin in the 2025 class, and he had a handful of competing P4 offers, but he transferred out after one spring camp. Pokaiaua Haunga was expected to be part of the plan at running back, but he was removed from the roster at the start of 2025 fall camp.
There is some reason for optimism down the road. BYU’s running back recruiting has improved in recent cycles, with four-star prospect McKay Madsen and high three-star Kingston Keanaaina signed in the 2025 class.
Both had competing P4 offers, and either one would be expected to help right now if they were available. But both are serving missions and will not be on the roster until next season.
The Cougars also already have a 2027 commitment in Ezra Sanelivi, who chose BYU over Arizon, Arkansas, Cal, Iowa, Michigan State, Wisconsin and Washington.
The talent level at running back is trending up, but that does little for BYU in the moment. A transfer addition could have helped bridge the gap, but the Cougars went another direction, and now they are trying to get through a critical stretch with a patched-together backfield.
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Aiden Flora is expected to be a central part of that plan, giving Iowa State a chance to shorten the game and limit possessions if the ground attack can stay on schedule. For BYU, the challenge is as familiar as it is annoying: force an opponent out of its comfort zone, get the defense off the field, and make sure a road team built on patience does not turn the afternoon into a slog. The Cougars know whats coming, which only makes the chess match more interesting. [Read more 🡒]
BYU Football Just Landed A Boost Fans Will Want To Size Up
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The most visible change will be at LaVell Edwards Stadium, where the playing surface will now be known as PV3 Field. Beyond the naming rights, athletes are set to gain access to mentoring, business partnerships and endorsement opportunities through PV3s portfolio, with principals Mark Hancock and Jason Murray framing the agreement as a long-term commitment to BYU football and its future. [Read more 🡒]