San José State vs UC Irvine prediction: UC Irvine's suffocating paint defense greets San José State's brand-new roster

The wall in Irvine

UC Irvine enters 2026-27 picked first in the Big West coaches' poll, and the reason starts on defense. Last season the Anteaters went 23-12 and allowed 95.5 points per 100 possessions, second-best in Division I. Opponent-adjusted, that figure was 99, still 29th of 365.

The interior was where that defense did its damage. Irvine held opponents to 42.2% on two-pointers, first in the country, and blocked 14.9% of opponents' two-point tries, 10th nationally. Opponents' effective field goal percentage (a shooting measure where threes count 1.5 times) was 45.2%, fifth-best. The roster now adds Olivier Rioux, a junior center who arrives from Florida, to a frontcourt that already protected the rim as well as anyone.

All of that is last season's team. How much carries over to a new year is the first real question for the Nov. 7 opener in Irvine.

A Spartans rebuild in progress

San José State's numbers from last season describe a team that no longer exists in its old form. The Spartans went 9-24, and the school is selling a "brand new roster" with "high-profile additions" for Tim Miles' sixth season, though it hasn't publicly named most of them. The roster itself remained unsettled across public listings.

The one confirmed piece is Robert Vaihola, a 6-8 forward rejoining the program from Minnesota. If last season is any guide, the Spartans need help everywhere inside: they made just 48.5% of their two-pointers (325th) and allowed 58.2% (361st). Their defense gave up 120.2 points per 100 possessions, 358th of 365. With turnover this heavy, treat those figures as a description of the problem Miles set out to fix, not a forecast.

Where San José State can push back

The Spartans' best tool last season was the three. They shot 35.8% from deep, 75th nationally, and their opponent-adjusted offense ranked 117th, well ahead of Irvine's 265th. That matters here because Irvine's perimeter defense was ordinary by its own standard: opponents hit 33.4% from three, 158th.

Irvine's own offense leaned away from the arc almost entirely. Its 3-point attempt rate of 27.5% ranked 361st, meaning only four teams took a smaller share of shots from deep. If the new Spartans can shoot like last year's group, they can trade threes for twos and keep the margin manageable.

Tempo and the glass

Style points in opposite directions. Irvine played at 71.2 possessions per 40 minutes last season, 34th-fastest, while San José State crawled at 65.1, 301st. A faster game gives the home team's defense more chances to force misses and run.

Rebounding could tilt it further. The Spartans grabbed only 64.6% of opponents' misses, 354th, while Irvine rebounded 32.5% of its own misses on offense. Second chances were a Spartans weakness, and a new frontcourt with Vaihola has to close that gap.

One thing to remember in a tight finish: Irvine made just 69.4% of its free throws last season, 279th nationally.