Portland's top-ranked offense meets San Antonio's top-five defense on a back-to-back

The central question at Moda Center is whether Portland's offense can beat San Antonio's defense. The Trail Blazers score 121.9 points per game, rank 1, with an offensive rating of 119.3 points per 100 possessions, rank 2. The Spurs allow 105.8 points per 100 possessions, rank 4. Both teams are on the second night of a back-to-back and the third game of a four-night stretch, so fatigue does not separate them.

Portland's advantage is shot quality and volume. Its effective field-goal percentage is 56.4%, rank 3, its three-point attempt rate is 49.6%, and its free-throw rate is .356. San Antonio's effective field-goal percentage is 51.7%, rank 23, and its opponents are shooting 37.1% from three, a soft spot in an otherwise strong defense. Against that, Portland's turnover rate is 15.4%, and the Spurs force turnovers on 14.2% of possessions.

Portland's defense is closer to average, at 110 points per 100 possessions, rank 13. Its absences matter too: Ja Morant is out with a Grade 2 left hamstring strain and is expected to miss four weeks, and Vit Krejci is out with a left leg fracture suffered in Wednesday's win over the Suns. San Antonio arrives off a 112-111 home win over Dallas in which Victor Wembanyama had career highs of 52 points and 24 rebounds. Net rating slightly favors Portland, 9.2 (rank 5) to 7.3 (rank 7), but the samples are only seven and eight games.

The April postseason meetings favor San Antonio, which won four of five, including 114-95 in the last one. Portland's only win was 106-103 on April 22. Those games are months old. The current streaks cut both ways: San Antonio has won six straight, and Portland has won three straight and covered three straight. Portland is also on a run of 8 straight losses as a home underdog. Portland is 5-2 against the spread this season and San Antonio is 3-5.

The market sides with San Antonio. The Spurs are 4.5-point favorites, with both sides priced at -112, and the number is exactly where it opened. The moneyline is San Antonio -174 and Portland +128, essentially unchanged. The total is 227.5, also unchanged, with the Over at -116 and the Under at -108. Both teams have gone under the total in three straight games in their current settings, and only 25% of San Antonio's games and 42.9% of Portland's have gone over.

Overall, the evidence is mixed. Portland has the stronger offensive profile and a better net rating, but it is without two guards and has a middling defense. San Antonio has the better defensive numbers and a quiet market in its favor, but weaker shooting efficiency.