Eduardo Rodriguez has quietly turned into the most reliable arm in Arizona's rotation, carrying a 2.61 ERA into this afternoon's rubber game after a stretch of starts that have kept the Diamondbacks in control against playoff-caliber lineups. Opposite him, Matthew Boyd is still 8-2, but the results have gotten shakier as August has worn on, and his stuff hasn't had the same bite it did back in July. I had the UNDER in Arizona's series finale against Cincinnati on Sunday, and it cashed comfortably, and this series has tracked a similar shape: Chicago blanked the Diamondbacks 7-0 in the opener, then scratched out just four runs of its own in a 5-4 loss the next night. Two competent lefties take the mound this afternoon in a set that has turned more on pitching than power through two games. Neither offense has hit well enough lately to make this number look light, and with Rodriguez controlling the zone the way he has, this profiles as another low-scoring afternoon. Take the UNDER this afternoon.
Previous Matchups & Picks
Lines & Odds
Cubs vs. Diamondbacks Betting Picks
Get Cubs vs. Diamondbacks betting picks, expert betting analysis, computer model picks, betting consensus data, matchup breakdowns, key betting angles, and the latest odds insights for today's Cubs vs. Diamondbacks game.
Public Consensus
Who was the public on? 52% of the public money was on Chicago Cubs to win on the moneyline. And, 69% of the bets were on the game to go OVER the total.
Computer Predictions
My computer prediction for this game was that Arizona would win by a score of 4.2 to 3.6 with Arizona winning on the moneyline and on the runline and the game going UNDER the total.
Pro Picks
Chicago at Arizona
Final Score
MLB Pro Pick Results
Here’s how my Pro Picks are performing.
Lines & Odds
Public Consensus
Who was the public on? 61% of the public money was on Chicago Cubs to win on the moneyline. And, 89% of the bets were on the game to go OVER the total.
Computer Predictions
My computer prediction for this game was that Chicago would win by a score of 4.2 to 2.9 with Chicago winning on the moneyline, Arizona winning on the runline and the game going UNDER the total.
Final Score
Lines & Odds
Public Consensus
Who was the public on? 80% of the public money was on Chicago Cubs to win on the moneyline. And, 90% of the bets were on the game to go OVER the total.
Computer Predictions
My computer prediction for this game was that Chicago would win by a score of 5.4 to 3.4 with Chicago winning on the moneyline and on the runline and the game going UNDER the total.
Final Score
Lines & Odds
Public Consensus
Who was the public on? 85% of the public money was on Chicago Cubs to win on the moneyline. And, 58% of the bets were on the game to go OVER the total.
Computer Predictions
My computer prediction for this game was that Chicago would win by a score of 5.3 to 3.2 with Chicago winning on the moneyline and on the runline and the game going UNDER the total.
Pro Picks
Arizona at Chicago
Arizona needs to salvage a game from this series after losing another close one 2-0 on Saturday. Merrill Kelly has had a rough start to the season, but he has a good history against Chicago hitters, who are just 20-for-97 for a .206 batting average against him with one homer. Cubs starter Matthew Boyd has allowed 15 runs (14 earned) on 21 hits in 18 innings in 2026. Chicago lost his last start 9-7 to the Padres when he was touched for five runs on eight hits in four innings. Arizona hitters have a .690 OPS against Boyd in 45 at-bats. The Cubs bullpen has a 3.81 ERA and a 1.23 WHIP. There is a high posted total on this game as the wind will be blowing out to left center, but it won't be an advantage for left-handed batters. Take the Diamondbacks and the UNDER.
Final Score
Lines & Odds
Public Consensus
Who was the public on? 83% of the public money was on Chicago Cubs to win on the moneyline. And, 95% of the bets were on the game to go OVER the total.
Computer Predictions
My computer prediction for this game was that Arizona would win by a score of 5.4 to 4.7 with Arizona winning on the moneyline and on the runline and the game going OVER the total.
Final Score
Get free MLB Picks
I pour over the data, injuries, news, and odds every morning. You get the best bets delivered to your inbox.
Get a top-rated pick every day.