Dan Szymborski recently posted the 2020 ZiPS projections for the Seattle Mariners. The system forecasts lefty Marco Gonzales to be the best pitcher on Seattle’s staff. That should come as no surprise considering that Gonzales has been far and away the best arm the Mariners have had to offer lately. According to ZiPS, he’s expected to throw at least 170 innings in 2020 and post a 4.26 ERA (4.12 FIP) with a WAR of 2.6. Despite his strong showings in 2018 and 2019, ZiPS indicates a fair amount of regression for Gonzales this coming season.

After two straight seasons of 3-plus WAR, can we expect a pitcher who throws two fastballs that barely reach 90 mph to maintain that level of performance? Despite his ability to spread his arsenal out, especially when he’s ahead of the hitter, there is a change to Gonzales’ pitch selection that could facilitate another impressive season for the 27-year-old former 19th-overall draft pick.

Gonzales threw five different pitches in 2019: a sinker, cutter, a fading changeup, a sweeping, slurve-ish curveball, and a four-seamer, all with above-average command:

As you can see, Gonzales throws three different fastball variations. His traditional cutter works just fine and by FIP, it was his best pitch in 2019. Its 11:40 spin direction facilitates little sweep but a decent amount of rise. Read the rest of this entry »

Free agent left-hander Robbie Erlin threw 55.1 innings across 37 appearances in a mediocre 2019 campaign. He gave up a lot of hard contact (43.7%), posted a 5.37 ERA, and saw his walk rate balloon to almost three free passes per nine innings. Erlin’s WHIP also skyrocketed from 1.14 in 2018 to 1.57 last year.

We can’t ignore that some bad luck may have found him; his BABIP was .373, almost 60 points higher than his career norm. That, coupled with the big jump in walk rate (2.7% to 6.0%), put Erlin in a lot of bad situations. Although he did manage to post a 3.61 FIP, that doesn’t sound like a pitcher destined for an especially promising 2020 season, if he’s picked up at all. So what value can be drawn from Erlin?

Well, for starters, Erlin mixes his pitches really well. The ability to keep hitters on their toes is advantageous regardless of how good your stuff is. In Erlin’s case, his stuff needs to be good, and there are ways in which he can make that happen.

Let’s first take a glance at Erlin’s five-pitch arsenal: a two- and four-seamer, a slider that is sometimes mistaken for a cutter, a curveball, and a changeup: Read the rest of this entry »

The 2020 Tampa Bay Rays arguably have one of the best front-end starting rotations in the American League, with Charlie Morton, Blake Snell, and Tyler Glasnow as the headliners. Last season, Glasnow flashed moments of brilliance prior to and following a mid-season injury that halted his torrid start in early May and kept him out of the rotation until September. Glasnow already has the ability to be the ace of the Rays staff — in his 60.2 innings, the right-hander was worth 2.3 WAR and posted a 1.78 ERA and 2.26 FIP — but a couple of minor adjustments could vault him into 2020 Cy Young Award discussions.

Glasnow, who avoided salary arbitration last Friday by agreeing to a one-year, $2.05 million deal, operates with three pitches: a straight, backspinning four-seam fastball that has some carry and can sometimes have cutting action; a 12-6 diving curveball; and a hard changeup that exceeds 90 mph.

Let’s start by looking at Glasnow’s four-seamer, one of the straightest in baseball with a good amount of rise:

Read the rest of this entry »

Veteran southpaw Wade Miley recently signed a two-year deal with the pitching-minded Cincinnati Reds. Last year with the Houston Astros, Miley posted his highest WAR since 2015, which should come as little surprise since he was under the guidance of one of the best pitching coaches in baseball, Brent Strom, though he ended the year on a sour note. While he’s likely in the twilight of his career, the 33-year-old will once again be working with another elite pitching coach, Derek Johnson. What kind of production might the Reds see from Miley in 2020? While I’m sure the folks in Great American Ballpark have their ideas, I see a basic change to his favored pitch, the cutter, which could help Miley in the long run.

Miley generally works with four pitches: a backspin cutter (his main pitch), a circle change, a four-seamer, and a lightly used curveball.

Notice anything in the above GIF? A quick inspection of the arm-slot pause shows a decent amount of release point variation between Miley’s cutter (and, to a lesser extent, his four-seamer) compared to his changeup and curve. Since Miley’s cutter usage is on the rise, we’ll focus on that pitch and, for the sake of argument, ignore the four-seamer; that version of his fastball has been on a steady decline, though there was a slight uptick in its use last year. Read the rest of this entry »

Chris Archer was bad in 2019. In fact, he was as bad as he’d ever been, posting his lowest WAR total and the worst FIP, ERA, walk rate, and HR/FB rate of his career. The performance has made the trade that sent him to the Pittsburgh Pirates from the Tampa Bay Rays look like a complete abomination.

Yet he shouldn’t have to walk the plank just yet.

For Archer, who turned 31 at the end of September, it’s something of a long shot that he’ll be able to return to being the pitcher he was during his heyday with the Rays. As you can see, what was once a good arsenal has devolved into a group of mediocre, if not weak, pitches:

The most significant dip for Archer came in the effectiveness of his two-seam fastball. The pitch worked well for him earlier in the decade, and after removing it from his arsenal in 2015, he brought it back three seasons later. Archer’s “new” two-seamer, which hasn’t been good (especially in 2019), was used sparingly against both left- and right-handed hitters. Read the rest of this entry »

Designing a pitch can be an arduous but rewarding process for a pitcher. When you find two or more pitches that have the potential to work well together, it may be worthwhile to make some changes if, for example, one isn’t yielding positive results. It’s not always as simple as it sounds, and sometimes the option of not using the pitch at all ends up being the best choice.

For an older pitcher, this process tends to be harder, though not impossible. They’ve gone through the majority of their career throwing a pitch with certain mechanics or gripping the ball in a particular way. Changes to either of those can be uncomfortable, which may create a developmental roadblock. However, there may come a point when becoming a more dynamic pitcher is necessary, especially as the aging curve starts its downward trend.

At 31 years of age, the Rangers’ Mike Minor put together the best season of his eight-year career. He posted a 3.59 ERA, an almost 3-1 K/BB rate, allowed his lowest ever contact rate in the strike zone, and had career highs in strikeouts (200) as well as innings pitched (208.1).

It might be a stretch to expect Minor to repeat his 4.2 WAR season, but it’s not out of the question. He still possesses a decent fastball and has developed a really good changeup. Yet his curveball and slider both took steps back in 2019, so Minor should consider working on at least one of them prior to the 2020 season. Read the rest of this entry »