Cubs vs Diamondbacks Prediction, Odds, Moneyline, Spread & Over/Under for May 3

Odds updated as of 11:12 a.m.

The MLB schedule on Sunday includes the Chicago Cubs taking on the Arizona Diamondbacks.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's what you need to know.

Cubs vs Diamondbacks Game Info

• Chicago Cubs (21-12) vs. Arizona Diamondbacks (16-16)
• Date: Sunday, May 3, 2026
• Time: 2:20 p.m. ET
• Venue: Wrigley Field -- Chicago, Illinois
• Coverage: MARQ and Dbacks.TV

Cubs vs Diamondbacks Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: CHC: (-158) | ARI: (+134)
• Spread: CHC: -1.5 (+118) | ARI: +1.5 (-142)
• Total: 11.5 -- Over: (-106) | Under: (-114)

Cubs vs Diamondbacks Probable Starting Pitchers

Probable Pitchers: Matthew Boyd (Cubs) - 1-1, 7.00 ERA vs Merrill Kelly (Diamondbacks) - 1-2, 9.20 ERA

This contest's pitching matchup is set, as the Cubs will send Matthew Boyd (1-1) to the mound, while Merrill Kelly (1-2) will answer the bell for the Diamondbacks. Boyd and his team are 2-2-0 ATS this season when he starts. Boyd's team has been victorious in 66.7% of the games he's started as the moneyline favorite with a record of 2-1. The Diamondbacks have a 1-2-0 record against the spread in Kelly's starts. The Diamondbacks were the underdog on the moneyline for two Kelly starts this season -- they split the games.

Cubs vs Diamondbacks Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Cubs win (65.9%)

Cubs vs Diamondbacks Moneyline

• Chicago is the favorite, -158 on the moneyline, while Arizona is a +134 underdog on the road.

Cubs vs Diamondbacks Spread

• The Cubs are favored by 1.5 runs at home versus the Diamondbacks. The Cubs are +118 to cover the spread, while the Diamondbacks are -142.

Cubs vs Diamondbacks Over/Under

• A combined run total of 11.5 has been set for Cubs-Diamondbacks on May 3, with the over at -106 and the under at -114.

Bet on Chicago Cubs vs. Arizona Diamondbacks on FanDuel today!

Cubs vs Diamondbacks Betting Trends

• The Cubs have been chosen as favorites in 21 games this year and have walked away with the win 14 times (66.7%) in those games.
• This year Chicago has won five of seven games when listed as at least -158 on the moneyline.
• Contests with the Cubs have gone over the total set by oddsmakers in 21 of 33 chances this season.
• The Cubs have an against the spread record of 16-17-0 in 33 games with a line this season.
• The Diamondbacks have been the underdog on the moneyline 22 total times this season. They've gone 9-13 in those games.
• In games it has played as a moneyline underdog with odds of +134 or longer, Arizona has a 3-4 record (winning 42.9% of its games).
• The Diamondbacks have played in 32 games with a set over/under, and have combined with their opponents to go over the total 19 times (19-12-1).
• The Diamondbacks have put together a 21-11-0 record against the spread this season (covering 65.6% of the time).

Cubs Player Leaders

• Nico Hoerner has an OPS of .835, fueled by an OBP of .374 to go with a slugging percentage of .461. He has a .297 batting average, as well.
• He ranks 32nd in batting average, 36th in on-base percentage, and 53rd in slugging among all qualified hitters in the majors.
• Hoerner has recorded a base hit in three straight games. During his last five outings he is batting .222 with two doubles, two walks and three RBIs.
• Dansby Swanson is batting .219 with two doubles, a triple, six home runs and 20 walks. He's slugging .429 with an on-base percentage of .341.
• He is 134th in batting average, 73rd in on-base percentage and 71st in slugging among qualified hitters.
• Swanson enters this matchup looking to extend his four-game hit streak. In his last five games he is batting .333 with a double, a walk and three RBIs.
• Ian Happ leads Chicago in total hits (29) this season, and 15 of those have gone for extra bases.
• Alex Bregman has three home runs, 12 RBI and a batting average of .250 this season.

Diamondbacks Player Leaders

• Ildemaro Vargas has a team-high OBP (.412) and slugging percentage (.673), while pacing the Diamondbacks in hits (38, while batting .388).
• Including all qualifying hitters, he ranks first in batting average, while his on-base percentage is 11th and he is third in slugging.
• Corbin Carroll is batting .280 with seven doubles, four triples, four home runs and 16 walks. He's slugging .533 with an on-base percentage of .376.
• Including all qualified hitters, he ranks 44th in batting average, 34th in on-base percentage and 22nd in slugging percentage.
• Geraldo Perdomo is batting .245 with three doubles, three triples, two home runs and 18 walks.
• Nolan Arenado is batting .276 with two doubles, five home runs and six walks.

Cubs vs Diamondbacks Head to Head

• 5/2/2026: 2-0 CHC (Favorite: Cubs, Spread: -1.5, Total: 7.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 5/1/2026: 6-5 CHC (Favorite: Cubs, Spread: -1.5, Total: 7, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 4/19/2025: 6-2 CHC (Favorite: Cubs, Spread: -1.5, Total: 7.5, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 4/18/2025: 13-11 CHC (Favorite: Diamondbacks, Spread: -1.5, Total: 11.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 3/30/2025: 10-6 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 3/29/2025: 4-3 CHC (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 3/28/2025: 8-1 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 3/27/2025: 10-6 CHC (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 7/21/2024: 2-1 CHC (Favorite: Cubs, Spread: -1.5, Total: 7, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 7/20/2024: 3-0 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)

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