SF Giants reliever Keaton Winn's incredible matchup numbers in 2026

Keaton Winn has been the SF Giants' best reliever in 2026. His success against right-handed hitters has been a big contributor to his performance.

As a whole, the Giants' bullpen has been a pleasant surprise, as they are eighth in baseball with a 3.32 ERA. On the surface, this is a strong number, but they have not been quite as effective in high-leverage spots.

The later innings are a different animal, and that is usually where the best relievers thrive. For years, Tyler Rogers was an example of that. He was an effective setup man and capable of assuming a heavy workload without a loss of stuff.

Winn has the potential to be a high-leverage arm and has quickly emerged as one of Tony Vitello's most trusted relievers. Vitello is not going with traditional bullpen roles for now, and he may not even want to use Winn in a traditional closer role. He might be their best option for that, but Vitello likes the flexibility of using Winn earlier in the game when the situation calls for it.

It is not unlike how Randy Rodríguez was used in the first half of last season. He was not in a concrete role, but often used when the situation needed him most.

SF Giants reliever Keaton Winn has been extremely effective against right-handed pitching

Not surprisingly, the key for Winn has been his splitter. It is the pitch that made him such an intriguing starting option for years before injuries got in the way, and it has helped him out of the bullpen.

That pitch has been extremely effective against right-handed hitters. Overall, right-handed hitters have put up a .109/.180/.109 line against Winn in 50 plate appearances this season. Left-handed hitters have put up a .608 OPS against Winn, so they have fared better but still have struggled.

That splitter has played a key role in his success. He throws that pitch 50 percent of the time against right-handed hitters, and they have just a .115 batting average against it. The sinker has been even more effective, with a .077 batting average against in those matchups.

Overall, the splitter has generated a 39.6 percent whiff rate. That has been a key pitch to his success in 2026, especially against same-sided matchups. If Winn comes into the game with a few right-handed hitters due up, the odds look good for the Giants.

Add us as a preferred source on Google

Follow