The Pittsburgh Pirates have had a successful first half of the 2026 season. The team sits at 50-47 with a +44 run differential, 9.5 games behind the first-place Brewers and just 2 games outside of the final Wild Card spot occupied by the Miami Marlins. So far, this has been an unequivocal success, especially considering that the Pirates have played games without some of their best batters (Oniel Cruz, Spencer Horowitz, and Konnor Griffin), and yet the team still leads all of baseball in both runs scored (516) and runs per game (5.32).
This is why it is a bit frustrating and confusing to learn that the Pirates are actually underperforming this season. The offense is reaching historic levels: the last two times the Pirates led the league in runs scored at the All-Star Break were 1960 and 1971. The team has the second-best on-base percentage and second-best slugging, good enough for the second-best OPS in the league behind the Dodgers. The Pirates have ten players with a wRC+ above 100; last season, they had just two all year. They rank fifth in overall team WAR, with the second-best batting WAR. All of this is why their Pythagorean record (53-44) is three games better than their actual record.
So with all of that going for them, what's holding the Buccos back? If you guessed defense, here's your Stargell Star. FanGraphs has them ranked fourth-worst in defensive WAR (-17.1), tenth-worst in Fielding Bible's Defensive Runs Saved (-2), and eighth-worst in Baseball Reference's Defensive Runs Saved Above Average (-22). While it's difficult to pin a team's poor defense on one or two individuals, Oniel Cruz (-10 DRS), Nick Gonzalez (-7 DRS), and Ryan O'Hearn (-5 DRS) have been the worst performers among players logging major innings. That said, bad defense isn't a death sentence; The playoff-positioned Phillies, Marlins, and Mariners all rank nearby the Pirates in these same metrics.
Defense hasn't been the only issue plaguing the Bucs, however. The Pirates have struggled in high-leverage situations both at the plate and on the mound. Clutch measures the cumulative impact of high-leverage at-bats for hitters and pitchers relative to their performance in context-neutral environments and the Pirates rank second-worst as a team, ahead of only the New York Mets. So while the bullpen has been a problem on its own, below-average performance with runners on base and in high-leverage spots has further cost the team wins.
Perhaps most surprising is that the pitching staff has been merely average and actually worse than expected metrics would suggest. The bullpen's ERA of 4.48 ranks seventh-worst in the league, though their Fielding Independent Pitching places them closer to league average (11th-best), suggesting the poor defense has taken a toll. The starters have posted a 4.20 ERA, only marginally better than the bullpen, but their FIP would rank fifth-best in the league; not surprising, given that starters throw more innings and absorb more of the defensive damage.
The takeaway here depends on your perspective. If you're a glass-half-empty kind of person, negative regression feels all but certain: preseason projections had the Pirates at 82 wins, and updated models aren't pushing them much beyond 84. The team has squandered its best opportunity to build a cushion, as the offense has overperformed while the bullpen and rotation look poised for a second-half swoon — and the defense will continue putting poor performers in the field for significant innings.
If you're a glass-half-full kind of person, the Pirates are due for some positive regression. The trade deadline should bring multiple upgrades, both internally and externally, to address the defense and bullpen. The projected biggest defensive liabilities (Brandon Lowe and Bryan Reynolds) have actually been above league average so far. The return of Griffin next month should shore up the infield, and the emergence of Esmerlyn Valdez could allow Cruz to shift to DH more often, minimizing his defensive liability in the field.
