The Transformation of Phil Irwin From a 21st Round Pick to a Legit Prospect

Phil Irwin had a 2.83 ERA in 130.1 innings last year, with an 8.1 K/9 and a 1.7 BB/9.
Phil Irwin had a 2.83 ERA in 130.1 innings last year, with an 8.1 K/9 and a 1.7 BB/9.

When the Pittsburgh Pirates drafted Phil Irwin, he was known as the other pitcher from Mississippi in the 2009 draft. The Pirates also selected Nate Baker in the 5th round that year. Baker and Irwin were the number two and three starters in the Ole Miss rotation in 2009, with the ace of the staff being 2010 first rounder Drew Pomeranz.

Irwin was taken in the 21st round. A college pitcher taken in the 21st round usually doesn’t turn into a prospect. So far, Irwin has been a different story.

The development started in 2010. Irwin did a lot of work that year in West Virginia with pitching coach Jeff Johnson. The right-hander made an adjustment, and took his four-seam fastball from the 87-88 MPH range to the 92-93 MPH range that year. He ended up with a 3.35 ERA in 113 innings, along with an 8.8 K/9 and a 1.6 BB/9 ratio.

In 2011, Irwin jumped to high-A at the start of the year. After a 2.02 ERA in 53.1 innings, he was promoted to Altoona. The right-hander learned a sinker while he was in Bradenton that year. He leaned more on the sinker once he jumped to Double-A, using it to get ahead of hitters and get quick ground ball outs. He ended up with a 3.81 ERA in 87.1 innings, with a 7.1 K/9 and a 1.0 BB/9 ratio.

Last year Irwin was injured at the start of the year, and made one rehab start in Bradenton. He moved back to Altoona, where he improved his numbers, putting up a 2.93 ERA in 104.1 innings, along with a 7.2 K/9, and a 1.5 BB/9. At the end of the season he made the jump to Indianapolis. In four starts he had a 2.57 ERA in 21 innings, with a 28:7 K/BB ratio.

Irwin just missed our top 50 list in 2011, mostly because he was a college pitcher and hadn’t had success in the upper levels yet. In 2012 he jumped up to become the number 39 prospect in the system, following his success in Double-A. This year he cracked the top 30, coming in at number 23. He also has gotten the attention of the Pirates, being added to the 40-man roster over the off-season to be protected from the Rule 5 draft.

He still has the velocity on the four-seam fastball, and that velocity takes a jump out of the bullpen. That’s where Irwin has been pitching so far in big league camp, and his focus has been more on the four-seamer so far.

“Right now I’m pumping four seamers in there. The sinker has been a situational pitch, because I’m just trying to challenge hitters, fill up the zone,” Irwin said.

During the season, Irwin usually goes half and half with those pitches, using the sinker a bit more often. He’s got a big breaking curveball, which is his strikeout pitch, and has led to a career 8.0 K/9 in 413.2 innings in the minors. What sets up that curve is his ability to pound the strike zone. That’s what led to his impressive 28 strikeouts in 21 innings in Triple-A last year.

“What really led to that is that the hitters get more patient, so if you’re able to strike one them to death…they allowed me to get to that pitch,” Irwin said of his strikeouts in Indianapolis. “They had never seen me before. That was the big thing, I was getting ahead of hitters, and I put them away when I had the chance.”

Irwin might have a tougher time the next time around, now that Triple-A hitters know what to expect. So far he hasn’t had any issues with hitters adjusting to him, although the jump from Double-A to Triple-A can be the hardest for pitchers to make.

“Eventually it’s going to be a leveling game,” Irwin said of the adjustment game between pitchers and hitters. “He knows I’m going to throw this, but I’m going to throw it because it’s the best thing I’ve got.”

The Pirates have a lot of starting options in the majors this year, so Irwin might not get a shot in the major league rotation this year. He could be useful to the Pirates in the short-term out of the bullpen. His four-seam fastball — with added velocity in shorter outings — would pair nicely with his curveball as a relief pitcher.

“It’s not my usual style,” Irwin said of relieving. “Coming out and blowing doors for an inning, it feels good. It’s actually pretty fun.”

That adjustment could be difficult to make. All throughout his career, Irwin has been a starter. He’s been on a schedule of pitching every five days for the last three and a half years, and would need to get used to the different workload that relievers face.

“Relieving is a completely different animal,” Irwin said. “The thing that I think would get to everybody would be getting up for multiple games in a row, whether you go in or not. I think Tony Watson may have gotten up for 20 out of 30 games, and he may have pitched in 10 of them. It’s different. You throw a lot more. Talking to guys, from what I understand, you get used to it. Your body adapts.”

The right-hander has been under the radar his whole career. He was the number three pitcher at Ole Miss, behind Pomeranz and Baker. He was a 21st round draft pick in 2009. He put up great numbers in 2012, but didn’t get as much recognition because a few higher ranked prospects put up slightly better numbers. One of those prospects was top prospect Gerrit Cole, who put up almost identical numbers to Irwin in 2012. The 2013 season could be when people start to take notice. Irwin is now on the 40-man roster. He’s still got something to prove in Triple-A, but could be a candidate to arrive in the majors by the end of the season.

“I’ve always enjoyed the under-the-radar thing,” Irwin said. “Eventually, yeah. If I make it up this year, people are going to figure out who I am.”

Irwin probably isn’t completely under-the-radar at this point, but he probably doesn’t get the attention he deserves. He’s got a low-90s fastball, an effective sinker, a filthy curveball that leads to a lot of strikeouts, and some of the best control in the system with a career 1.6 BB/9 ratio. If he is still under-the-radar for some, that probably won’t last beyond this year.

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Fred Langford

Some things I love about Irwin: 5:1 K:BB ratio, decent HR rate for a guy with such good control, and for a guy with control he has hit 36 batters in 413 ip in the minors. He knows how to pitch, is composed, and he comes after hitters. Nothing not to like with him.

Fred Langford

Phil Irwin was not a high pick or ever considered high upside so I don’t know why you would compare him to Lincoln. If we get the same value out of Irwin we got out of Lincoln we would be way ahead of the curve. Not sure why BA didn’t have Irwin in the top 30. I would not have had Clint Robinson and Ngoepe in my top 30 and would have put Irwin and Adalberto Santos, Eric Wood, or Max Moroff instead.


I like Irwin a lot, wish they would give him starts in ST instead of a few token relief appearances against the “B” players from other teams. Hurdle is very confusing, he plays guys that have no chance of making this team the majority of innings and the guys that need the work don’t play as many innings, the Pirates really look behind when you see the progress of other teams down here in Florida. If he keeps it up we might be in for another weak hitting April.


Phil Irwin has been in the 3’s and 2’s for ERA the past few years as stated by the author. Lincoln was stuck at AAA for 3 years and never busted out of the 4+ ERA level. Angus hit the nail on the head about Brad Lincoln, who just never got back to where he was at as a big time college pitcher and consensus number one draft pick. Guys like Irwin and McPherson are not able to fall back on their draft status – they either cut it or are out of baseball playing slow pitch softball. Lincoln tried, but just never was able to come back. He needed an opportunity that was slipping by him in Pittsburgh, and Snider was in the same circumstance at Toronto. Good luck to both.

Ian Rothermund

All valid points by you guys in regards to Brad Lincoln. I think what a lot of people forgot was the fact that the stuff Lincoln would have when he came out as a reliever was the stuff he had while he was in college…as a starter. His injury came as possibly the worst stage in his development; a former college pitcher on the fast track to the big leagues that had border-line control issues. It wasn’t necessarily the kind of control issues as seen in Wilson, or the new guy from Detroit, but I think he had control issues within the zone. He didn’t have enough movement on his fastball and he left it up a lot. Good luck to him in Toronto….as long as Snider produces here, lol.


Brad Lincoln 2.0


more like Kyle McPherson 2.0
McFear wasnt considered much of a prospect either until his 4 seamer kicked up a bit. He went from being a borderline top 50 pirates prospect to a top 10 on many lists.
Lincoln was a stud prospect who got hurt and never could find what he once was.


I’m speaking to him as a pitcher: he only has two pitches but one is plus AND he has really good control

So if they make him a spot starter and reliever ala Brad Lincoln I think he could dominate. Give you 100 quality innings instead of 150 mediocre ones.

Lee Young

White Angus….agree with the McFear comp.


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