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What's Happening? Pirates' Paul Skenes Battling First MLB Slump
May 28, 2026; Pittsburgh, Pennsylvania, USA; Pittsburgh Pirates starting pitcher Paul Skenes (30) pitches against the Chicago Cubs during the third inning at PNC Park. Mandatory Credit: Charles LeClaire-Imagn Images Charles LeClaire-Imagn Images

PITTSBURGH — Paul Skenes has served as one of the best pitchers of baseball since his debut in May 2024, but he's facing the most adversity in his career at this moment.

Skenes has lost three of his last four outings, giving up 15 runs and 13 earned runs over 20 innings for a 5.85 ERA, plus at least four hits in each appearance. The most runs Skenes had given up over a four-game stretch was 10 runs

It was another tough start for Skenes against the Houston Astros at Daikin Park on June 3, where he allowed seven hits and three earned runs over 4.2 innings and threw a career-high 109 pitches in a game the Pirates lost 11-9.

Skenes didn't take the loss in this one, as the Pirates led when he departed and the bullpen imploded late on, but it's clear that he hasn't been as effective as he once was.

What's Leading to Skenes' Struggles

Skenes' struggles have seen him give up five earned runs over five innings in a 6-0 loss to the Philadelphia Phillies at PNC Park on May 17, four earned runs over five innings in a 5-2 loss to the Toronto Blue Jays at Rogers Centre on May 23 and three runs and one earned run over 5.1 innings in the 7-2 loss to the Chicago Cubs at PNC Park on May 28.

The main culprit for Skenes is just giving up more hits and walks than he had previously, which is an easy way to give up runs.

He's allowed 26 hits over these past four starts and over 20 innings is good for an 11.7 H/9 (hits per nine innings), along with six walks.

Skenes went more than a month and five starts without issuing a walk and walked just seven batters in his previous nine starts before this slump.

He also allowed more than four hits just once in an outing in his first nine starts, which is resulting in longer innings and higher pitch counts.

Opposing hitters have also gotten a barrel on Skenes' higher velocity pitches like his four-seam fastball, sinker and splitter, which has resulted in most of the hits for them.

Skenes' BBE/Hits/Hard Contact Over Last Four Starts

Pitch Batted Ball Events Hits Hard Contact
Four-Seam Fastball 18 9 11
Sinker 11 4 7
Splitter 8 6 3
Sweeper 8 2 1
Slider 8 3 3
Changeup 7 2 0

He's also thrown 100+ pitches in his past two starts after doing that just once in his first 11 starts and

Skenes didn't get much help from his defense at times vs. the Astros, particularly Nick Gonzales' struggles at third base, but he also only had 52% of his at-bats with a first pitch strike.

This especially hurt him against his last batter, Astros right field Cam Smith, who Skenes fell behind 2-0 and gave up a single on a full count to score the third run for the Astros.

He hasn't gotten higher than 61% for his first pitch strikes in these last four starts, something Skenes noted after the defeat to the Astros.

“Yeah just got to get ahead," Skenes said. "There were a couple, that last at-bat obviously, Donnie comes out and I go 2-0. Just go to get ahead.”

How Skenes Can Turn it Around

Skenes had two poor outings before this slump, including allowing five earned runs on Opening Day vs. the New York Mets at Citi Field on March 26, that saw him not make it out of the first inning, and then giving up five runs in a 10-4 defeat to the St. Louis Cardinals at PNC Park on April 30.

He bounced back both times, with just two earned runs allowed over the next four starts following the Mets' debacle and then two of his best starts of his career after the Cardinals loss.

Skenes threw eight scoreless innings, allowed just two hits in each starts and posted 17 strikeouts in a 1-0 win over the Arizona Diamondbacks at Chase Field on May 6 and a 3-1 victory vs. the Colorado Rockies at PNC Park on May 12.

Those starts saw Skenes dominate both National League West teams, baffle them with his pitch mix, get easy strikeouts and keep his pitch count down to go deeper into games.

Skenes is still having a solid season, with a 3.09 ERA much higher than his normal sub-2.00 ERA, but posting a .198 batting average allowed (BAA) and a 0.91 WHIP, good for sixth-lowest and third-lowest, respectively, of any MLB qualified pitcher.

This slump isn't something Skenes is happy with of course, but he won't dwell on those starts.

Skenes will examine his pitch mix, figure out what's working and what's not and find ways to get ahead in counts, induce less hard contact and try to avoid long at-bats early on.

“I think it’s really easy to look at the box score," Skenes said postgame. "Last outing, three walks, couple runs, stuff like that. It’s really easy to look at the box score and think, ‘Dang, maybe I’m not throwing the ball super well’, and I think you have to take a step back and look at how you’re executing pitches. Obviously see what there is to do better. Same thing as every outing. Look at the pitches that you’re executing and look at it objectively.”

This article first appeared on Pittsburgh Pirates on SI and was syndicated with permission.

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