Cubs’ Jacob Webb eats rare miscue as Randy Arozarena finishes it with a walk-off homer

It took one fat pitch and one unforgettable sprint to the wall, but the Cubs learned the cost of a late miscue Saturday night at T-Mobile Park. With the game slipping into its final at-bat, Jacob Webb turned toward Pete Crow-Armstrong as the center fielder tracked a deep ball, only to see Randy Arozarena’s hit travel beyond reach for a walk-off homer. The outcome turned what had felt like control for Chicago into a gut-punch loss, 5-4.

Webb’s night, framed by the way he set the stage, made the ending stand out. According to MLB’s game report, the Cubs had been in position for the final out before the last sequence changed everything. Crow-Armstrong’s effort at the wall came up short, and Arozarena’s ball carried far enough that there was never a real chance for the catch once it cleared the leap.

The play also underscored a classic late-inning baseball problem: even when a team is executing well, one hitter’s timing can turn defense into theater. Crow-Armstrong’s positioning and the audible immediacy of a potential catch mattered, but it was the distance that decided the swing. Webb’s awareness of the outfield flight, described as he kept his eye on the center fielder as the ball came down, is exactly the kind of posture pitchers take when they believe they have recorded the final out. This time, the last out slipped out of grasp.

From the Cubs’ perspective, the ending arrives as a reminder that bullpen-style tension can surface even in games shaped by starter routines. The report characterizes Chicago’s lead as something it had under control, which makes the walk-off the sort of result that lingers with a team’s confidence as much as its margin in the standings. For the Mariners, it delivered the kind of finish that keeps momentum alive for an entire clubhouse, converting late leverage into instant celebration.

Arozarena’s role matters in a simple way. He is the hitter who made the Cubs’ final-out plan fall apart, turning Webb’s pitch into a walk-off homer and capping the sequence with a celebratory trot that the MLB recap highlights. In tight games, the difference between “almost” and “over” can be measured in a few feet of carry, and this one swung the whole night in an instant.

What to watch next is how Chicago responds to a rare stumble of this type, both mentally and in how it manages late-game at-bats. For Seattle, the result reinforces the value of staying aggressive in the ninth and beyond, where a single swing can override earlier control and reshape the final line. The walk-off finish also places more emphasis on the Cubs’ attention to execution after a strong game path, because their ability to protect late leads will be judged by endings, not only by what came before them.