Should We Believe in the Pittsburgh Pirates?

Any time something crazy happens early in the season, such as the week that Adam Duvall was leading the league in WAR, I tend to dismiss it with a single word reply of “April.” But the calendar has now flipped, and the shower-month has become the flower-month, so it’s getting a bit harder to ignore the Pirates, standing at the top of the NL Central with a 20–9 record, a whopping 10 games above last season’s victor, the currently last-place Cardinals. Nearly 20% of the season is now done, and it’s probably time to talk about whether Pittsburgh is for real.
First off, going 20–9 is always an impressive run. Teams that do that aren’t always great teams, but they’re usually at least middling and only rarely actually bad. There have been exactly 1.21 craploads of 20–9 or better runs over the last 20 years, and only two with a run that solid, the 2021 Cubs and 2005 Orioles, finished with 75 wins or fewer. And while the Pirates had more than their share of basement-dwelling opponents (the average opponent has a .430 winning percentage), great performances in baseball tend to be in environments that are most conducive to those performances. The Yankees had the best 29-game run last year, at 24–5, with 21 of those 29 games coming against non-playoff teams.
Suffice it to say that the projection systems were generally not optimistic on the idea of the Pirates being contenders in 2023. Our preseason depth charts gave them a 3% chance to win the division and a 6.5% chance of making the playoffs. ZiPS, which liked the Cardinals better than the combined projections (a prognostication that’s not looking great right now), was even more down on Pittsburgh, with only a 0.7% shot at the NL Central and 1.8% for a postseason. These weren’t hopeless numbers, but they certainly left the Pirates as a longshot. But as of the morning of May 2, our projections now have the Pirates at 18.5% to win the division and 32.3% to make the playoffs. And the updated ZiPS projections for 2023 suggest a chaotic division if everyone’s somewhere around their median projection. When you take into account Pittsburgh’s hot start, the Cubs playing very well, St. Louis’ bleak April, and Milwaukee’s pitching injuries, ZiPS sees the NL Central as wide open:
Team | W | L | GB | Pct | Div% | WC% | Playoff% | WS Win% |
---|---|---|---|---|---|---|---|---|
Milwaukee Brewers | 85 | 77 | — | .525 | 30.8% | 17.9% | 48.7% | 2.2% |
St. Louis Cardinals | 85 | 77 | — | .525 | 27.0% | 17.6% | 44.6% | 4.3% |
Pittsburgh Pirates | 84 | 78 | 1 | .519 | 22.6% | 16.7% | 39.3% | 1.2% |
Chicago Cubs | 83 | 79 | 2 | .512 | 19.3% | 16.0% | 35.3% | 1.6% |
Cincinnati Reds | 68 | 94 | 17 | .420 | 0.2% | 0.5% | 0.7% | 0.0% |
The good news for Pirates fans is that the assumptions needed to get here are not particularly aggressive. Neither ZiPS nor our Depth Charts combined projections have decided that Pittsburgh is a great team, or even a good one. In fact, both methodologies still see them finishing below .500 — Depth Charts as a .467 team, ZiPS as a .490 team. Read the rest of this entry »