Arizona at BYU. Our picks: Arizona +7.5 (high). Under 47.5 (low).

Arizona +7.5

Over 47.5

Arizona +7.5 offers the valuable touchdown hook against an EL number of BYU -6.1, although that 1.4-point difference is not a demonstrated edge. The stronger argument is matchup-specific: Fifita remains Arizona’s starter, while BYU loses safety Raider Damuni. Arizona’s current depth chart lists its established offensive starters; the two questionable Arizona players in the dossier are not listed in its offensive rotation, so treating those flags as major offensive losses would be excessive. BYU deserves favoritism, and expected linebacker returns partially offset its secondary loss. Its home advantage could also exceed EL’s flat allowance. Market history is mixed: DraftKings moved toward BYU, while FanDuel moved toward Arizona, making a unified sharp-money narrative unjustified. Monday’s injury news is likely substantially priced by Wednesday. I prefer the experienced visiting quarterback plus more than a touchdown, but neither the news nor the unproven model supports a strong position.

Total. The under deserves respect: both defenses have strong prior-season results, BYU expects linebacker reinforcements, and the captured market has already fallen three to six points at several books. Possible running-back absences and the dossier’s wind forecast also favor fewer points. However, 47.5 now demands a relatively restrained game from two established quarterbacks. Damuni’s absence creates a plausible passing vulnerability, while Arizona’s depth chart does not establish major losses among its primary offensive options. EL’s 48.19 offers almost no independent support, but its 51.458 ridge baseline shows how heavily subsequent adjustments suppress scoring. I could not corroborate the 14.8-mph kickoff wind, so I would not mechanically accept that deduction. Take a modest over position at the reduced number; the decline alone does not prove an overreaction.

Arizona +7.5

Under 47.5

Our rating makes this BYU -6.1 into a market that opened -7.5 and still sits -7.5 at seven books, priced about -110 both ways with no movement all week (Sportsbook Review, 9/9). A 1.4-point gap is inside our model's noise, so the case has to come from news, and this week's news runs Arizona's way. A Pima County judge granted a TRO on 9/9 restoring RB Ismail Mahdi (859 rushing yards, 4 rushing TDs, 17 catches), LB Max Harris (78 tackles, third on the team) and P Sullivan Moon; all three sat out week 1 and all are eligible Saturday (SI, 9/9). Arizona has not confirmed it will activate them, but the line had not moved as of my last odds read. BYU meanwhile loses starting safety Raider Damuni for weeks with Tommy Prassas starting, and RB2 Sione Moa is day-to-day (Deseret 9/7, BYU depth chart via Yahoo 9/9), and is breaking in DC Kelly Poppinga after Jay Hill left for Michigan. These two needed double overtime last year, BYU 33-27. +7.5 buys the hook past the key number with a fifth-year QB in Noah Fifita. A lean, not a full-size bet.

Total. The move is the story. Opens were BetMGM 51.5, Pinnacle and Bovada 50.5, FanDuel 53.5 between 9/2 and 9/6; it is 47.5 at DraftKings, FanDuel, BetMGM and Pinnacle now, and the over is still the expensive side (DK 47.5, over -115 / under -105, ESPN 9/9). A 3 to 6 point unanimous drop plus pricing that says fair is still below 47.5 is the strongest signal on this game, and it has a football reason: both defenses allowed 7 points in week 1, both allowed about 19 per game in 2025, and BYU's veteran line is built to shorten games. Against it: weather is benign, so there is no wind suppression, and both teams averaged 31-plus points in 2025. I side with the move while admitting I am buying at the bottom of it, hence the modest number.

Arizona +7.5

Under 47.5

Our model reads BYU -6.1 against the market's -7.5, a 1.4-point gap the model itself flags as a pass below its 6.5-point lean floor - treat that as noise, not a signal, especially since the model has no proven ATS edge in any gap bucket historically. Line history adds something real: FanDuel opened Arizona at +9.5 on 9/3 and has been bought down to +7.5 by 9/9, while Pinnacle - the sharpest of the five tracked books - opened and has sat at -7.5 all week without moving, suggesting an efficient number rather than a mispriced one. Neither side carries a confirmed impact injury: Arizona's Fifita (262 yds, 2 TD, 91.0 QBR Wk1) and BYU's Bachmeier (16/20, 198 yds, 3 TD Wk1) are both healthy and playing well; the questionable/out tags on both rosters are depth pieces, unconfirmed beyond our own Covers scan (ESPN/Rotowire shows no data for either team). Both Wk1 wins came against outmatched FCS/G5 opponents and tell us little about a true road Big 12 environment. I lean the points with Arizona, but lightly - the market found this number early and hasn't moved off it since.

Total. Every tracked book has cut this total hard: BetMGM 51.5->47.5, FanDuel 53.5->47.5, Pinnacle 50.5->47.5, Bovada 50.5->48, all converging inside half a point of each other by 2026-09-09 - a stronger signal than our own model, whose 48.19 sits only 0.6-0.7 above market and is far short of its own 12.86-point conviction threshold. That kind of uniform, multi-book decline usually means the market overpriced Week 1's 63-7 and 35-7 scorelines (both against clearly overmatched non-conference opponents) and has since corrected toward a more realistic Big 12 road-game number. Weather does not push this under: the NWS forecast for Provo on Saturday calls for a 93F high, dry and mostly sunny by kickoff, warmer and calmer than the dossier's captured 82F/14.8mph snapshot, so I am not leaning on weather here - I'm on the under mainly because the market itself already did the work.