Los Angeles Dodgers at Arizona Diamondbacks Picks and Prediction for Sunday, August 9, 2026

Chase Field in Phoenix hosts the series finale of this three-game set at 8:10 PM ET as the Los Angeles Dodgers (70-47) visit the Arizona Diamondbacks (62-56) looking to salvage the series rubber match after Saturday's walk-off defeat. The Diamondbacks edged the Dodgers 4-3 on Saturday on a Ryan Waldschmidt two-run blast that ended a quality Roki Sasaki start in the cruellest fashion — Los Angeles lost despite Sasaki's quality effort, with Arizona walking off the reigning champions to cut the NL West deficit and fuel the kind of Chase Field atmosphere that has made this venue one of the most hostile in the NL for road favorites. Los Angeles originally opened at -157 but has been bet up to -190, with a heavy 83.3% of moneyline tickets and 70.0% of the handle backing the visitors — a public and sharp alignment that reflects the consensus on the individual pitching matchup heading into Sunday. Read on to find out who takes the series in our Dodgers vs. Diamondbacks prediction. Don't go down on strikes! Get our top MLB Predictions and increase your bankroll!

Wrobleski Has Been the NL's Biggest Second-Half Pitching Surprise

Justin Wrobleski (11-3) starts for the Dodgers on Sunday, and his team is 10-7-0 against the spread in his starts this season, with an 11-5 record when he takes the ball and they are the money line favorite. The left-hander's 11-3 record — matched only by a small handful of NL starters — represents a quality breakthrough for a pitcher who entered 2026 as a depth option behind Yamamoto and Sasaki and has emerged as the rotation's third ace. His 2.87 ERA entering the second half has been validated by consistently strong underlying metrics — a contact-suppression profile that generates ground balls and limits the exit velocity that Chase Field's conditions can amplify on dry Arizona summer nights.

The Dodgers have hit the first-five-innings team total Over in 11 of their last 14 away games — a specific road offensive trend that reflects the depth of a Los Angeles lineup operating at peak efficiency away from Dodger Stadium. Shohei Ohtani's knee that cost him Saturday gives the Dodgers their one lineup uncertainty heading into Sunday, but even without Ohtani at full capacity, the combination of Freddie Freeman's .880 OPS, Mookie Betts's on-base consistency, and Kyle Tucker's recent surge in the middle of the order gives Wrobleski the run-support foundation to work with throughout the afternoon. The Dodgers are 4-0 in their last four games with Torres behind home plate — the catcher whose game-calling and pitch-framing gives left-handers like Wrobleski the specific receiving quality that has made his recent starts consistently excellent.

Rodriguez Is Arizona's Best Arm, But the Dodgers Have His Number

Eduardo Rodriguez (10-4) counters for Arizona — when Rodriguez starts, the Diamondbacks are 14-9-0 against the spread and carry a 9-3 record in his 12 starts this season when they were the money line underdog. The Venezuelan left-hander's transformation from a pitcher posting a 5.02 ERA in 2025 to a 10-win All-Star in 2026 has been one of the NL West's most compelling individual storylines — a return to command and fastball velocity that had abandoned him in recent seasons, now producing the kind of sustained quality-start consistency that has kept the Diamondbacks competitive in the NL Wild Card race.

Under is 5-1 in the last six meetings between these teams in Arizona — the most emphatic single-venue totals trend in the NL West — and Rodriguez's start cycle is specifically where that lean has been most reliable, as his sinker-changeup combination generates the early-count weak contact that Chase Field's dome conditions amplify into ground balls rather than extra-base hits. The Diamondbacks' lineup around Rodriguez has been productive at home: Corbin Carroll leads the team with 103 hits and carries genuine contact quality, Gabriel Moreno leads the team with a .383 OBP, and Ketel Marte provides consistent middle-of-the-order production — a lineup that has been functional at Chase Field but ranked just 21st in home runs per game in their own ballpark, relying on contact and manufactured runs rather than power to support their starting pitching.

The Diamondbacks are 5-1 in their last six games as an underdog and 4-1 in their last five as a home favorite — a competitive resilience pattern that reflects genuine second-half quality rather than schedule manipulation. Saturday's Waldschmidt walk-off proved Arizona can beat the Dodgers when the moments arrive, and Rodriguez at home against a Dodgers lineup that was edged out on Friday and Saturday gives the Diamondbacks genuine conviction heading into Sunday.

Dodgers vs. Diamondbacks Picks

• Money Line Pick: Arizona Diamondbacks

The Diamondbacks are 5-1 in their last six games as underdogs and 4-1 in their last five as a home favorite — two convergent trends that make Arizona at +170 the standout value play on the Sunday NL West board. Rodriguez's 10-4 record, the Diamondbacks' 9-3 record in his starts as underdogs, and the home-field advantage at a Chase Field where Under is 5-1 in the last six meetings in Arizona — all indicators that Arizona can keep this close and steal the series. The Dodgers' money line has been bet from -157 to -190 on public backing alone, and the sharp handle landing at only 70% on the favorite signals that the market move has been driven by public rather than professional money.

• Over/Under Pick: Under 8.5 Runs

Under is 5-1 in the last six meetings between these teams in Arizona, and Under is 3-0-1 in the Diamondbacks' last four home games — two of the most statistically reliable Under trends in Sunday's NL West matchup pool. Wrobleski's ground-ball contact management suppresses the Arizona lineup's power below what Chase Field's conditions would otherwise produce, while Rodriguez's sinker-changeup combination keeps the Dodgers from exploding despite their lineup depth. The Dodgers have hit the team total Under in 29 of their last 45 games — a season-long lean that aligns with the pitching quality they are deploying on Sunday. Two left-handers generating contact in a dome environment that removes weather as a scoring amplifier, with a five-meeting Under streak in this specific venue, makes the Under the cleanest structural play of Sunday's slate. Take the Under 8.5 runs.