Sunday’s finale between the Arizona Diamondbacks and Cincinnati Reds at Great American Ball Park brings together two evenly matched National League teams sitting just below .500 and each seeking a momentum boost as June heats up. Arizona enters with a 31–33 record and will likely send ace Zac Gallen to the mound, a right-hander capable of overpowering any lineup when his curveball and command are sharp, though his season has been marked by inconsistency and a higher-than-expected ERA despite strong strikeout totals. Cincinnati, sitting at 32–33, will counter with Brady Singer, a pitch-to-contact arm who relies on soft grounders and limiting walks to stay efficient through the middle innings, and while he doesn’t generate many whiffs, his ability to suppress big innings at home has been key to the Reds’ recent run-line success. Both offenses have been streaky at best, with Arizona relying heavily on Ketel Marte’s power and consistency, complemented by occasional clutch hitting from Eugenio Suárez and Corbin Carroll, while Cincinnati depends on the dynamic tools of Elly De La Cruz, the steady bat of Spencer Steer, and the ability to manufacture runs through speed and contact rather than pure power.

Defensively, both squads are capable but not elite, with the Reds flashing more range but also showing some vulnerability in execution, particularly up the middle. The bullpens are where the contrast sharpens—Cincinnati’s trio of Sims, Cruz, and Díaz has been elite in high-leverage home situations, while Arizona’s late-game arms have stabilized slightly but remain prone to control issues and costly walks in tight innings. With both teams struggling to sustain scoring and the projected total set near 8, this matchup sets up as another under-friendly, bullpen-dependent battle where a single mistake or timely hit could shift the outcome. Betting trends lean in favor of the Reds at home, particularly on the run line, as they’ve covered in 17 of 29 home games and hit the under in 6 of their last 7 at Great American Ball Park, while Arizona has also leaned under on the road in 5 of their last 7. If Gallen finds his rhythm early and can outduel Singer through six innings, Arizona could grind out a 3–2 type road win, but if Singer keeps the ball down and Cincinnati can scratch across an early run or two and hand the game to their bullpen with a lead, the Reds are well-positioned to lock up a close win and edge above .500 in front of their home crowd.