These Are the Best Pitchers in the MLB in 2025

No player on a Major League Baseball (MLB) team carries more weight on their shoulders than the pitcher. They’re front and center, both on the field and on the broadcast at home. Every run the opposing team scores ultimately starts with them and their ability to prevent hits and strike players out.

So, who are the best pitchers in the MLB right now? Here’s a breakdown on who’s at the top of the pitching charts right now, plus a quick primer on some of the most important statistics used to determine pitching performance.

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Best MLB Pitching Statistics

Major League Baseball is a statistics-heavy sport with a rich dataset to draw on. It’s no surprise, then, that there are numerous different metrics that can be used to measure pitching, and there’s a diversity of opinion on which ones are the best. Here are three of the metrics most experts agree provide the best picture of a pitcher’s performance.

1. ERA (Earned Runs Average): ERA is typically the metric of choice for most baseball analysts and aficionados when it comes to judging a pitcher’s performance. Put simply, it’s the number of runs a pitcher gives up per nine innings.

Runs that score with the help of an error or passed ball are not considered earned runs and don’t count towards this metric. The idea is that it’s a good measure of how well a pitcher is performing his core role: preventing runs from happening.

ERA does have a few downsides, primarily in that it doesn’t take into consideration whether the pitcher is backed up by a poor defense. It can also be skewed by things like the layout of the ballpark, which can vary greatly.

2. FIP (Field Independent Pitching): FIP is another metric designed to gauge the overall performance of a pitcher, but it differs in that it focuses more on variables that the pitcher can control: strikeouts, home runs, hit-by-pitches and walks.

3. WHIP (Walks and Hits Per Inning Pitched): WHIP is a simple but powerful statistic for gauging pitching. It’s the total number of hits and walks the pitcher allows divided by the total innings they have pitched (IP).

Current Best MLB Pitchers by Performance This Season

So, using these three metrics, which pitchers have risen to the top of their game this season? Let’s take a look using the metrics we described above. For this table, we’re using the final rankings from the 2024 season, with ERA as the primary performance measure.

(Source: Baseball Reference)

Will Spencer Strider Pitch in 2025?

Wait, what about Spencer Strider, the Atlanta Braves star starting pitcher? Coming into last season, Strider was widely considered the best pitcher on the mound in the MLB, but a bone fragment damaged his right collateral ligament, ruling him out for the season.

Strider is expected to take the mound for the Braves in 2025.

MLB Pitchers to Watch in 2025

We’re going to use the above metrics to stack up the current field of pitchers in the MLB in a bit, but first let’s take a look at some of the stand-out starters that were considered the cream of the crop heading into the season and their current stat line:

Chris Sale, Atlanta Braves (ERA: 2.38 | FIP: 2.09 | WHIP: 1.22): Chris Sale has been a monster on the mound for both the Boston Red Sox and now the Atlanta Braves. Known for his dominant fastball-slider combination, deceptive low three-quarter arm slot, and pinpoint command, Sale famously closed out the 2018 World Series for the Red Sox. Keep an eye on him in 2025.

Zach Wheeler (ERA: 2.57 | FIP: 3.13 | WHIP: 0.96) and Aaron Nola (ERA: 3.57 | FIP: 3.94 | WHIP: 1.2), Philadelphia Phillies: Wheeler is known for his amazing sinker and his impeccable ball control. Nola, a veteran starting pitcher with a career 3.57 ERA, is also in the Phillie’s bullpen, making their pitching rotation a formidable group, indeed. It’s no surprise that the Phillies are arguably one of the best teams in the league right now.

Corbin Burnes, Arizona Diamondbacks (ERA: 2.92 | FIP: 3.55 | WHIP: 1.13): The Oriole’s versatile power pitcher and his sliders and cutters are a big part of their success, despite their recent inability to take it all the way in the playoffs.

Luis Castillo, Seattle Mariners (ERA: 3.64 | FIP: 3.91 | WHIP: 1.17): The Seattle Mariners have been a contender in recent years despite missing the 2024 playoffs, in no small part thanks to Castillo’s consistency in pitching.

Who are the best MLB pitchers of all time?

A lot of pitchers have stepped on to the mound in the baseball’s nearly 150-year history, so let’s use some of these metrics to take a look at the all-time top pitchers by ERA and WHIP:

(Source: ESPN)

Now, statistics only tell part of the story when it comes to the best pitchers of all time. There are some notable names missing from that list (looking at you, Cy Young and Roger Clemens).

Let’s look again, adding in games played and wins in addition to ERA:

(Source: ESPN)