Cubs vs. Diamondbacks Dunkel MLB Picks, Predictions and Prop Bets - May 3

The Arizona Diamondbacks carry a three-game losing streak into a home contest versus the Chicago Cubs, at 2:20 p.m. ET on Sunday. Matthew Boyd (1-1, 7.00 ERA) will start for the Cubs, who are 21-12 this season and first in the NL Central. Merrill Kelly (1-2, 9.20 ERA) is expected to start for the Diamondbacks, who are 16-16 and third in the NL West.

Bookmakers have made the Cubs a decent moneyline favorite (-159) at home over the Diamondbacks (+134). The game has an over/under of 12 runs.

Cubs vs. Diamondbacks Odds, Game Time

• Game day: Sunday, May 3, 2026
• Game time: 2:20 p.m. ET
• Location: Chicago, Illinois
• Stadium: Wrigley Field
• Favorite: Cubs (-159)
• Underdog: Diamondbacks (+134)
• Over/under: 12

How to Watch Cubs vs. Diamondbacks

• TV Channel: MARQ and ARID
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Cubs vs. Diamondbacks: Betting the Moneyline

• The Cubs have gone 14-7 in games they were listed as the moneyline favorite (winning 66.7% of those games).
• Arizona has been pegged as an underdog in 22 games this year and has walked away with the win nine times (40.9%) in those games.
• This season Chicago has won five of its seven games when favored by at least -159 on the moneyline.
• This year, the Diamondbacks have won three of seven games when listed as at least +134 or worse on the moneyline.
• The implied moneyline probablility in this matchup gives the Cubs a 61.4% chance to win.
• The Diamondbacks have an implied victory probability of 42.7% according to the moneyline set for this matchup.

Cubs vs. Diamondbacks: Betting the Spread & Total

• The Cubs have played in 33 games with a set over/under, and have combined with their opponents to go over the total 21 times (21-10-2).
• So far this season, Arizona and its opponents have hit the over in 19 of its 32 games with a total.
• The Cubs are 16-17-0 against the spread this season.
• In 32 games with a line this season, the Diamondbacks have a mark of 21-11-0 against the spread.