Washington Nationals vs San Diego Padres Picks and Prediction for Tuesday September 8 2026

The Washington Nationals travel to Petco Park in San Diego, California, to face the San Diego Padres on Tuesday, September 8, 2026. First pitch is scheduled for 9:40 PM ET with coverage on ESPN Unlimited and MLB.TV. Washington enters at 67-78 overall and 34-38 on the road, while San Diego is 75-68 overall and 43-29 at home. The Nationals have lost four straight games and have dropped four of their last five, while the Padres have won two of their last five. Washington leads the season series 2-1. At the time of this writing the odds were not released. Be sure to check out our free MLB picks for more predictions throughout the season.

Starting Pitchers

Washington is scheduled to start Will Dion, who enters at 1-2 with a 3.89 ERA and 1.17 WHIP across 39.1 innings. He has allowed 34 hits and 12 walks while recording 45 strikeouts and surrendering seven home runs. San Diego counters with Casey Mize, who is 5-9 with a 3.64 ERA and 1.12 WHIP over 113.2 innings. He has allowed 99 hits and 28 walks while striking out 100 and giving up 13 home runs. The Padres have the slight statistical advantage in ERA and WHIP, while their scheduled starter also brings a much larger workload into the matchup.

Washington Brings More Offensive Production

Washington enters this game 11 games below .500 and has lost four straight. The Nationals have allowed at least five runs in each of those four losses, including defeats by scores of 7-5, 6-5, 5-3 and 9-0.

The Nationals are batting .249 with 748 runs, 1,231 hits and 194 home runs. They own a .325 on-base percentage and .429 slugging percentage. Washington's pitching staff carries a 4.72 ERA and 1.39 WHIP while opponents are batting .255.

Washington's strength is clearly its offense. The Nationals have scored 146 more runs than San Diego and have hit 35 more home runs while also holding sizeable advantages in batting average, on-base percentage and slugging percentage. The problem is run prevention, where Washington has struggled significantly more than the Padres.

San Diego Has the Pitching and Home-Field Edge

San Diego enters at 75-68 overall and has played well at Petco Park with a 43-29 home record. The Padres have won two of their last five, including a 4-3 victory in their most recent game and a 3-2 extra-inning win earlier in the stretch.

The Padres are batting .236 with 602 runs, 1,111 hits and 159 home runs. They carry a .313 on-base percentage and .387 slugging percentage. San Diego's pitching staff owns a 3.91 ERA and 1.29 WHIP while holding opponents to a .241 batting average.

San Diego's biggest advantage is pitching. The Padres have the better team ERA, WHIP and opponents' batting average, and the scheduled starter also owns the slightly stronger statistical profile. Combined with a 43-29 home record, that gives San Diego a strong foundation despite Washington's superior offensive production.

Washington Nationals vs San Diego Padres Picks and Prediction

Pick: San Diego Padres Moneyline

San Diego is the preferred side because the home-field and pitching advantages outweigh Washington's offensive edge. The Padres are 43-29 at Petco Park, while Washington is below .500 on the road and enters on a four-game losing streak. San Diego also owns the stronger team ERA and WHIP and has the slight starting-pitching advantage. Washington can score, but its recent inability to prevent runs creates too much risk. Take San Diego on the moneyline.

Pick: Over 8.5

The Over 8.5 is the preferred total if the market opens around that number. Washington has allowed at least five runs in four straight games and carries a 4.72 team ERA, while its offense has scored five runs in each of its last two games. The Nationals also own a .429 slugging percentage with 194 home runs, giving them enough offensive upside to contribute against San Diego's stronger pitching staff. Take the Over if the total is set at 8.5 or lower.

Final Picks: San Diego Padres Moneyline and Over 8.5

This preview was completed before play on Monday. Starting pitchers, betting lines and other game information are subject to change before the game begins.