The D-backs had the kind of afternoon that leaves a mark: plenty of traffic, plenty of chances, and almost no payoff in a 6-4 loss to the Rockies.
This was the sort of spot that can sneak up on a team. Arizona had just come through back-to-back series against two high-powered divisional rivals, and this game capped a season-long homestand of 10 games.
After that kind of stretch, a little wear and tear makes sense. The frustration here wasn’t the setting.
It was the waste.
Merrill Kelly never looked fully in rhythm. Coming off five no-hit innings against the Dodgers and a strong run that stretched back to the end of June, he instead looked closer to the shaky version Arizona saw earlier in the year.
His stuff was down a couple of ticks, his command wasn’t where it usually is, and he finished with just two strikeouts and three walks over five innings. There was at least some reason to wonder whether the cramps from his last start played a role.
Kelly got through the first inning cleanly, but the second turned messy fast. The first three batters reached on a walk and two singles before he settled down enough to retire the next two hitters and nearly escape.
Then Brett Sullivan worked the count to 3-1, and Kelly tried to sneak a four-seam fastball to the bottom of the zone. Sullivan got enough of it to send it off the foul pole for a three-run homer.
In the fourth, Kelly ran into more trouble after a leadoff walk, then hung a changeup in the middle of the zone that Zac Veen drove into the outfield pool.
Even with Kelly off his game, the bigger headache was Arizona’s offense. The D-backs put together a season-high 10 walks, added 11 hits, and struck out only three times, but they still came away with just four runs.
That kind of line usually points to a productive day. Instead, it became a lesson in how to strand opportunity.
Arizona went 3-for-12 with runners in scoring position and left 15 men on base. The bats kept building innings against Ryan Feltner, but the finish was missing.
Double plays kept cutting things off, and the D-backs had too many empty swings in the biggest spots. Nolan Arenado rolled into a weak first-pitch grounder with the bases loaded in the fifth, and Ryan Waldschmidt ended the seventh with another inning-killing double play.
That’s what made this one sting. In a season that figures to be decided by the thinnest of margins, games like this can feel bigger than they are.
A couple of losses to a lesser team won’t wreck a season, and good teams do lose games like this. Still, bankable wins are bankable for a reason, and Arizona let this one slip away.
The D-backs now head into an off day before going to Atlanta, where they’ll try to reset and show how sharp they can be.
In Other News...
Diamondbacks Just Made A Bullpen Decision Fans Will Debate
Paul Sewalds run in Arizona ended with the kind of roster move that tends to stir up second-guessing later. The veteran right-hander, who went through a mixed 2026 season, was designated for assignment by the Diamondbacks and is now headed to Toronto, where the Blue Jays are taking on the rest of his $1.5 million contract and bringing him into a bullpen that is dealing with multiple injuries.
For Arizona, the move leaves behind the familiar question of whether patience would have been the better play with a reliever who has logged plenty of big-league innings. For Toronto, it is a low-cost chance to add experience and flexibility, with Sewald expected to be used in a setup role rather than handed closing duties right away. [Read more 🡒]
Perdomos Return Gives Diamondbacks Offense A Needed Lift In Playoff Push
Geraldo Perdomo is back in the Diamondbacks lineup after a brief absence because of knee soreness, and his return comes at a time when every productive at-bat matters. Arizona is in the middle of a competitive National League postseason race, and Perdomos value goes beyond the box score because he can keep innings alive and help set the table for the hitters behind him.
For a lineup looking for more consistency, having Perdomo available again gives the Diamondbacks a steadier presence in the middle of the everyday mix. Even without any dramatic change to the roster, his ability to extend rallies and create pressure on opposing pitchers can make a noticeable difference as Arizona tries to stay in the thick of the playoff chase. [Read more 🡒]
Diamondbacks Suddenly Need More From One Spot Before This Road Trip
The Diamondbacks are trying to squeeze a little more offense out of a lineup that has not been as sharp as it needs to be, and the timing matters with the Rockies still in front of them before a tougher road stretch begins. Arizona knows it can help itself by taking care of this series first, especially with the schedule about to get less forgiving away from home.
There is also some hope buried in the injury picture, with Justin Martinez among the players the club is watching closely. If his command and control return in time, he could become part of the solution at a moment when Arizona could use more certainty in the late innings and more stability overall as the trip approaches. [Read more 🡒]