Dodgers vs. Diamondbacks Prediction: Can Eduardo Rodriguez Slow Down LA?

Chase Field in Phoenix plays host to one of the better matchups on the Monday night slate, as the Los Angeles Dodgers roll into the desert to face the Arizona Diamondbacks in a rematch of what has been a very one-sided rivalry in 2026. The Dodgers come in sitting at 38-21, firmly in control of the NL West and playing like the best team in the National League. Arizona at 31-27 is not a pushover, but they’ve had a rough go against LA this season and will need a standout performance from their ace to change that trend tonight.

This is the fourth meeting between these two clubs in 2026, with the Dodgers having swept the Opening Series back in March by scores of 8-2, 5-4, and 3-2. LA has owned this matchup so far, and they’ll be looking to continue that dominance. For the Diamondbacks, tonight is a chance to finally get something going against a division rival that has made them look ordinary so far this year.

Oddsmakers Like Los Angeles, But Arizona Has Some Value

The books opened the Dodgers as favorites in the range of -155 to -160, and the line has held relatively steady at LAD -157 with Arizona at +130. The over/under sits at 9, which is on the higher side and reflects the offensive capability of both clubs when they’re clicking. On the run line, Los Angeles is listed at -1.5 with a plus price of +104, while Arizona gets the cushion at +1.5 priced at -126.

The plus price on the Dodgers run line is interesting given how consistently they’ve won against Arizona this year, but it also acknowledges that road games in Arizona at night can produce tighter contests. The total of 9 reflects two offenses that can score, though it also has to account for two pitchers who have been limiting damage in different ways.

Eduardo Rodriguez Is the Key, and He’s Been Excellent

The biggest storyline for tonight’s game is Eduardo Rodriguez taking the mound for Arizona. The veteran lefthander has been one of the best starters in the NL this season, posting a 5-1 record with a 2.31 ERA and a 1.21 WHIP. He’s punched out 49 batters and has given the Diamondbacks exactly the kind of front-of-the-rotation stability they need when facing a lineup as dangerous as Los Angeles. Rodriguez has kept hitters off balance with his changeup and hasn’t been prone to the big inning, which is critical against a Dodgers offense that can explode in a hurry.

Los Angeles counters with Emmet Sheehan, who has a 3-1 record but a 4.70 ERA and a 1.24 WHIP that suggest he’s been a bit fortunate in the win column. Sheehan has strong strikeout stuff — 59 punchouts — but he’s also hittable, and the Diamondbacks have enough contact hitters to take advantage of that. The pitching matchup clearly favors Arizona on paper tonight.

The Dodgers’ lineup is the most feared in baseball for a reason. Shohei Ohtani continues to do Shohei Ohtani things, hitting .280 with a .402 on-base percentage, 10 home runs, and a .493 slugging mark. Andy Pages has been an absolute revelation in center field this season — 13 home runs, 50 RBI, and a .538 slugging percentage is elite production from a young player hitting near the top of a loaded order. Freddie Freeman remains one of the best pure hitters in the game at .271/.361/.467, and even when Mookie Betts (.194 average) has been struggling with the bat, he finds other ways to impact the game.

Kyle Tucker brings an additional bat from the right side at .242/.338/.391, and Will Smith handles catching duties at .256/.341/.394 with six home runs. This is a lineup that does not have a soft spot and can beat you in a number of ways — the long ball, the extra-base hit, or just grinding out at-bats and making pitchers work. Rodriguez is good enough to handle them, but it will take his A-game to do it.

On the Arizona side, Corbin Carroll has been one of the more exciting players in the National League this season. He’s hitting .287 with a .381 on-base percentage and a .535 slugging mark, adding 7 home runs, 13 doubles, and 8 triples. Carroll’s speed, contact ability, and pop make him a genuine five-tool threat and someone who can completely change the complexion of a game. Ketel Marte is steady as ever at .262/.318/.452 with 9 home runs and 33 RBI, while newcomer Nolan Arenado has settled in at third base hitting .269/.350/.451 with 7 home runs. Ildemaro Vargas has also been a pleasant surprise, hitting .295 with 7 home runs and 37 RBI at first base.

The injury report does create some concern for Arizona. Carlos Santana and Lourdes Gurriel Jr. are both on the 10-Day IL, limiting the depth in the lineup. Pavin Smith is on the 60-Day IL, adding another key piece to the list. These are not replacements Arizona can lean on when things go sideways in a game, and against the Dodgers, things can go sideways quickly.

The Dodgers’ pitching staff has been exceptional as a unit, posting a 3.08 team ERA and holding opposing hitters to a .207 batting average against. Arizona’s staff carries a 4.02 ERA and has allowed a .241 OAV — respectable numbers, but a step below what LA brings. The Dodgers are averaging 5.3 runs per game, Arizona 4.6. In nearly every team metric, Los Angeles has the edge.

Prediction and Best Bet

Eduardo Rodriguez gives Arizona every chance to win this game. He’s the kind of starter who can keep the Dodgers’ lineup from going off, and if he pitches into the seventh with a lead, the Arizona bullpen has the ability to close it out. But Sheehan’s elevated ERA and the Dodgers’ head-to-head dominance in 2026 are hard to ignore. Los Angeles has won three straight against Arizona, and they’re doing it with a lineup that keeps finding ways to score regardless of who’s pitching against them.

The Dodgers’ team ERA of 3.08 is also a major factor here. Even if Sheehan allows a few runs early, the Los Angeles bullpen is one of the best in baseball and is more than capable of holding a lead or keeping the team in a close game. Arizona doesn’t have the same depth behind Rodriguez, and once he comes out, the advantage shifts further toward LA.

• Prediction: Los Angeles Dodgers 5, Arizona Diamondbacks 3
• Best Bet: Los Angeles Dodgers -1.5 (+104)

Getting the Dodgers at plus money on the run line is excellent value given their 3-0 record against Arizona with wins of 8-2, 5-4, and 3-2. Two of those three wins were by exactly the margin needed to cash a -1.5 ticket, and with Sheehan facing a lineup that will be patient and dangerous all night, Los Angeles should have enough firepower to cover the spread. The +104 price makes this a very attractive play for bettors interested in Arizona sports betting tonight.