Cubs vs Diamondbacks Prediction 3 May 2026
📡 Chicago have already clinched two games in the series: first with a 6-5 win, then with a 2-0 victory. On Saturday, the Cubs secured their 10th consecutive home win, as Shota Imanaga pitched seven scoreless innings. However, the third game presents a different pitching matchup: the hosts have Matthew Boyd with an ERA of 7.00, while the visitors counter with Merrill Kelly, whose ERA is over nine. With this pair of pitchers, a total over 10.5 seems more intriguing than betting on another low-scoring game following Saturday's 2-0 result.
Head-to-Head
📊 In their last 10 head-to-head matchups, Chicago holds a 6-4 advantage. The totals have been mixed, but the recent series already delivered an over - (6:5), and there have been high-scoring games like (10:6), (12:11), (7:6) in a broader context. For a bet on Over 10.5, the key factors are the recent high-scoring game combined with the current starting duel, where both pitchers are posting challenging season numbers.
Head-to-head statistics Cubs - Diamondbacks

Chicago Cubs Team Overview
The Cubs are currently on an impressive home streak, boasting 10 consecutive wins at their field and a 14-3 record since April 14. On Saturday, they secured victory with just two runs, but this doesn't diminish their overall offensive capabilities. Ian Happ hit a home run, a double, and a triple, extending his on-base streak to 23 games and accounting for all of the home team's scoring. Facing Kelly, who has an ERA of 9.20, Chicago will have much more room to attack than they did the previous day.
Match Results: Chicago Cubs

Arizona Diamondbacks Team Overview
Arizona have lost eight of their last 11 games, and on Saturday they managed just five hits, barely advancing runners into scoring position. However, the visitors remain crucial for the over total: after two consecutive defeats, they need to take more risks, and against Boyd with a 7.00 ERA, there's an opportunity to respond. Even three or four runs from the Diamondbacks could quickly push the game towards hitting the over mark.
Match Results: Arizona Diamondbacks
⚾ Starting Pitchers
Chicago will send Matthew Boyd to the mound. ESPN lists him with a 1-1 record and a 7.00 ERA, yet MLB preview highlights his impressive career stats at Wrigley Field-13-2 with a 3.02 ERA. This contradiction adds an element of unpredictability to the game: Boyd has been vulnerable this season, giving Arizona a chance to bounce back quickly after Saturday's setback.
Arizona counters with Merrill Kelly. ESPN reports a 1-2 record and a 9.20 ERA, but MLB preview points out his career 3-0 record and 2.88 ERA in seven starts against the Cubs. However, current form takes precedence over past performances: facing a team that has won 10 straight home games, Kelly will need to prove that his season stats don't accurately reflect his current level of play.
⭐ Editorial Prediction
Saturday's 2-0 scoreline might suggest a low-scoring affair, but Sunday's scenario is quite different. Both teams are starting pitchers with ERAs of 7.00 and 9.20, and Chicago, playing at home, are too confident to expect a second consecutive offensive shutdown. Arizona shouldn't be held scoreless again either; they have a chance to contribute against Boyd and make the game lively by the midpoint. Considering the Cubs' form at Wrigley Field and the shaky starting matchup, a solid option here is over 10.5 total runs.