Misiorowski Leads Every Rate Stat, But Sale's FIP Says It's a Coin Flip

Jacob Misiorowski owns ERA, WHIP, K/9 and K/BB among all 52 qualified starters in 2026, but Chris Sale's FIP edges him by two hundredths of a run — and a batted-ball luck signal suggests Misiorowski's cushion may narrow before October.

Published: August 28, 2026 · Figures as of August 28, 2026

Asked: Is Jacob Misiorowski the best pitcher in baseball?

Misiorowski leads every major rate stat, but it's a near tie with Sale

This season, among the 52 pitchers who clear MLB's innings floor for qualification, Jacob Misiorowski currently ranks first in ERA (1.73), WHIP (0.76), strikeouts per nine (13.23) and K/BB (6.34) - a full sweep of the sport's primary rate categories. That's the strongest possible box-score case for "best pitcher in baseball" right now, but a process-based look narrows the gap to essentially a coin flip with Atlanta's Chris Sale, and the model that tracks whether results match process flags some batted-ball luck behind the number.

The rate-stat sweep

• ERA: 1.73, #1 of 52 qualified (next is Chris Sale at 2.06, then Cam Schlittler at 2.17)
• WHIP: 0.76, #1 (Yoshinobu Yamamoto next at 0.89)
• K/9: 13.23, #1 (Dylan Cease next at 13.03)
• K/BB: 6.34, #1 (Sale next at 6.32)
• Record: 14-5 in 25 starts, 151 innings, for a Milwaukee club that has MLB's best record at 83-51

Where it gets closer: FIP

ERA and its walk/strikeout/home-run-only cousin FIP sit on the same runs-per-nine scale, and that's where the picture tightens. Using the league's own strikeout/walk/homer core to rebuild FIP's scaling constant for this season, Misiorowski's FIP is 2.10 - excellent, but not the league's best. Chris Sale's is 2.08, a few hundredths better, over a similar workload (144 innings to Misiorowski's 151).

The gap between Misiorowski's ERA and his own FIP is about 0.38 runs - his results are running a bit ahead of what his strikeout/walk/homer profile alone supports. Sale's gap is only about 0.01, meaning his ERA and FIP agree almost exactly. That doesn't mean Misiorowski's season is fake - a K/9 over 13 and a WHIP under 0.80 are real skill signals FIP already credits him for - but it does mean part of his edge over Sale on ERA is coming from something FIP doesn't capture (contact management, sequencing, or luck), not from swing-and-miss dominance.

What the sustainability read adds

DataBaller's sustainability model, run through August 28, 2026 (v2), scores Misiorowski at 0.32 with confidence of 0.52 - a score in that range, with a "down" regression direction, means his batting-average-on-balls-in-play-against over his last 40 team games (.217) is running about 1.4 standard deviations below his own established two-year level (.254), and the model expects that number to drift back up, which would cost him roughly 3 hits worth of results going forward. The confidence is moderate, not high, mostly because the window itself is on the smaller side (83 balls in play) - so treat this as a real but not overwhelming signal that some of his hit prevention has been generous rather than fully repeatable.

Bottom line

On the traditional and process numbers available this season, Misiorowski and Sale are the two legitimate answers to "best pitcher in baseball," and Sale's peripherals are marginally ahead even though Misiorowski owns every headline rate stat. Confidence: Medium - the ranking itself is well-supported by a full season's worth of qualified pitchers, but it rests on one season of data, doesn't account for defense (unmeasurable here) or October performance, and the sustainability read suggests Misiorowski's cushion over Sale may narrow before the season ends.