The Good Phight will be previewing the 2026 season by going over each position on the field. We’ll talk about the players that will occupy them, the played behind them, their strengths and weaknesses and give a few takes about how we think the season will shake out.
The Phillies began 2025 betting on Jordan Romano to have a bounce-back season, for José Ruiz to look like a solid middle-inning reliever, José Alvarado to look like a high leverage reliever, and for Orion Kerkering to ascend into an upper tier right handed reliever.
None of that happened. Luckily, they were able to sign David Robertson and make a massive trade for Jhoan Duran but the bullpen still cost them in each of their losses against the Dodgers in the NLDS. The Phillies were never able to overcome an offseason plan going horribly wrong.
The Leverage/Middle Relief Arms:Jhoan Duran, Brad Keller, José Alvarado, Jonathan Bowlan, Orion Kerkering, and Tanner Banks
Jhoan Duran will pitch his first full season as a Philadelphia Phillie after being acquired at the trade deadline last year. That means a full season of a set ninth inning and the Durantula throwing a ridiculous splinker while his intro music is still ringing in the heads of a sold-out crowd.
Even though Duran throws a 100+ mph fastball, a 98 mph splitter that induces a lot of weak contact, a nasty curveball, and hard sweeper, he doesn’t feel like there is enough of a mix for one inning. He started throwing a more traditional split-change in spring training.
Personal opinion: it should be illegal for a closer to throw more than 3 pitches.
That’s not all to the bullpen in 2026. Brad Keller signed a two-year deal after a career-altering season with the Chicago Cubs. Keller pitched to a 2.07 ERA in 69.2 innings last season with a five-pitch arsenal. Given his .569 OPS allowed to left-handed hitters last season, Keller slots in as the primary setup option.
José Alvarado returns after his 2025 was defined by an 80-game suspension. The sinker and cutter have looked sharp in camp and there isn’t much left-handed relief depth behind him. He is the primary left handed option for Rob Thomson’s bullpen.
Jonathan Bowlan was acquired from the Royals in exchange for Matt Strahm. Bowlan finally got extended major league action as a reliever last season and showed some promising traits. His four-seam fastball generated a 43.5% whiff rate while his slider was at 40.2%. He also throws a sinker, curveball, and changeup to mix up the arsenal.
While it hasn’t been the best camp for Bowlan, there are still plenty of reasons to believe this was a very good trade for the Phillies given his upside and team control moving forward.
Orion Kerkering has a lot to prove in 2026. Beyond what happened in the NLDS, Kerkering took a step back in the 2025 regular season with a spike in walk rate and some bad tweaks with his sweeper. The pitch that got him to the major leagues did not have the same horizontal break and drop it had before and hitters looked a lot more comfortable against it. His whiff rate on the pitch declined by 7.5% and opponents hit it for more damage.
There is a world where Kerkering ends up as the second or third-best arm in the bullpen. He is working on a splitter, which could help him against left-handed hitters. It will still come down to how his sweeper performs in 2026 for him to reach his full potential.
No, Kerkering should not throw more fastballs.
Tanner Banks is comfortably the sixth guy in Thomson’s bullpen as a middle-relief/matchup arm against left-handed hitters. Banks limited lefties to a .456 OPS last season but struggled against righties. The Phillies are banking on him doing the exact same thing again.
This is the strongest the bullpen has looked since the end of the 2024 season. It will look more conventional than any bullpen in the Rob Thomson era. There is a set closer, there are set 7th and 8th inning arms, and there are set middle relievers.
The churn: Kyle Backhus, Zach Pop, Seth Johnson, Chase Shugart, Max Lazar, Nolan Hoffman, and Zach McCambley (for now)
The Phillies completely revamped the back of their 40-man roster with plenty of new relief options for depth. They traded for Kyle Backhus to bolster their left-handed reliever depth, bought some Pop, and claimed Shu(gart).
There are a lot more options for roster churn as the season goes on. Backhus, Zach Pop, and Seth Johnson stood out in camp. Shugart and Lazar look like options that can pitch more than an inning.
There are even some nice non-roster invite pickups here. Trevor Richards still throws a sick changeup, Jonathan Hernández has shown some stuff, and Daniel Robert throws a good sweeper.
Strengths: High end stuff and mix
The Phillies’ bullpen lacked swing-and-miss stuff, which is a necessity for high-leverage situations. Adding Duran for a full season, signing Keller, getting a full year out of Alvarado, and even trading for someone like Bowlan will go a long way in giving Thomson more high-end swing-and-miss stuff.
The Phillies also clearly prioritized pitchers, especially right-handed pitchers with deeper arsenals. Trading for Duran began the trend but Keller and Bowlan also have five-pitch arsenals and two different fastballs to help mitigate platoon advantages.
On paper, this is the kind of bullpen to feel good about taking to October.
Weaknesses: Left Handed Depth
The 40-man roster only carries three left-handed relievers in Alvarado, Banks, and Backhus. They added Tim Mayza and Génesis Cabrera to minor league stills but it’s still easy to see the group as a little thin.
Some of their right-handed relievers will mitigate some of this. Duran and Keller were very good at getting both righties and lefties out last season but it’s still easy to see why you could want a little more.
If Alvarado misses some time, you will need right-handed pitchers to make up for it in leverage spots. Banks and Backhus are very good at getting lefties out but do not profile well against righties.
Hottest take: Jonathan Bowlan is the 3rd best reliever in the bullpen
The four-seam fastball and slider combination will make for a big strikeout rate and his command is solid for a reliever. There could be some home-run issues here but he feels like the best guy outside of their top two arms to break through as a true leverage piece.
Realistic take: Duran earns a career high in saves
From 2023-2025, Duran recorded 82 saves with a career high of 32 last season. Those Minnesota Twins teams never won more than 87 games while he was there and the closer role is less valuable when the team doesn’t have as many ninth inning leads.
The Phillies won 95 games in 2024 and 96 last season. The general expectation for this group is to once again win the division and win roughly 93+ games.
From a math standpoint, it’s hard to imagine Duran finishing with fewer than 33 saves next season.