Hitter Fantasy Baseball Breakouts - Risers to Watch and Waiver Wire Outlooks (Week 24)

September 12, 2025

Jarod's hitter fantasy baseball breakouts, sleepers, and risers to watch for Week 24 of 2025. His list includes waiver wire outlooks and underachieving hitters so far.

Welcome back to my Fantasy Baseball Breakout Hitters article for Week 24 of the 2025 MLB season. The focus of this article is to highlight players who could be on the verge of a breakout, citing current active hitting streaks along with recent leaders in batting average, stolen bases, and isolated power (ISO).

This week, we'll check in on some hot names like Brandon Nimmo, Drew Gilbert, and Luis Matos. We'll also take a look at a guy who is finally getting regular playing time and who could be a sneaky source of steals over the rest of the season.

Who should fantasy managers look to grab off the waiver wire or even plug into their DFS lineup this week? Let's check it out below!

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Hit Streak Leaders

Data through 9/3

Andruw Monasterio (11 games*)

Andruw Monasterio is the league's surprising hit streak leader coming into Thursday's action with a hit recorded in 11 consecutive games, going 14-for-36 (.389) over that stretch. They haven't all been singles either, peppering in four doubles and two home runs as well.

Stepping up in a major way@ajmonasterio16 https://t.co/d65AfraSJz pic.twitter.com/aZm4nOFDIM

— Milwaukee Brewers (@Brewers) August 30, 2025

I'll keep his section somewhat brief, though, because he received much of his playing time at short while Joey Ortiz was on the injured list. However, with Ortiz back from injury, Monasterio took a seat in the next two games, so he may not be afforded as many at-bats going forward.

(peeks at Thursday afternoon box scores) This streak may not be long for this world either, as Monasterio has yet to record a hit through his first three at-bats on Thursday.

Still, with the ability to play all over the infield and in the outfield, the 28-year-old could find himself a regular role if another starter were to go down with injury, and he's eligible at 1B, 2B, 3B, and SS in Yahoo! leagues, so stay vigilant.

*Update: Monasterio finished 0-for-4 on Thursday, ending his hit streak

Brandon Nimmo (10 games)

If you eliminate the two games in August in which Brandon Nimmo received just one at-bat (and went hitless in both), he would be riding a 17-game hit streak that dates back to August 12.

Brandon Nimmo delivers a #walkoff hit for the @Mets! pic.twitter.com/QLbjWS7Ord

— MLB (@MLB) August 27, 2025

Since that day, the 32-year-old is 27-for-71 (.380) in games that he received at least two at-bats, including six doubles, three home runs, 15 RBI, and 16 runs scored. With 22 home runs on the year, the left-handed slugger is just two home runs away from tying his career high of 24 he set in 2023.

You won't find him on many waiver wires at 86 percent rostered, but make sure not to overlook him when setting your DFS lineups.

Highest Batting Average Last Seven Days

Data through 9/3, minimum 13 at-bats

Drew Gilbert (.526 BA)

Drew Gilbert's major league career got off to a 3-for-31 (.097) start, but since then, he's 10-for-19 (.526) with three doubles, one triple, and two home runs, tallying eight RBI and seven runs scored along the way.

Drew Gilbert is hitting .526 (!) in his last 7 games for San Francisco 🔥pic.twitter.com/dODbKYagCy

— Milb Central (@milb_central) September 4, 2025

The former first-round draft pick had 14 home runs in 93 games in the minors this season before he was called up, belting as many as 18 back in 2023, so there is some real pop in his bat, and he also posted better-than-average strikeout (17.8 percent) and walk (11.6 percent) rates throughout his time there.

The 24-year-old has played all three outfield positions during his time with the Giants, which should help to keep his bat in the lineup while he's hot, and he even moved up from the bottom of the order to batting sixth in his latest start, providing some added fantasy appeal. He's available in nearly all leagues.

Highest ISO Last Seven Days

Data through 9/3, minimum 13 at-bats

I outlined the case for a resurgent Dansby Swanson in last week's article as an "xwOBA Underachiever," and you'll see him listed there at the bottom of the above graphic, belting a double, a triple, and three home runs over the last week.

Austin Wells (.563 ISO)

Austin Wells has hit poorly this season, but when he has put the bat on the ball, it has frequently gone for extra bases. The 26-year-old owns a .231 ISO this season, which would rank in the top 25 in baseball if he qualified.

Austin Wells clubs his 20th homer this season! pic.twitter.com/VFoslI6Wkm

— MLB (@MLB) September 4, 2025

For the season, Wells is hitting .218 with a .305 wOBA and 94 wRC+, but over the last week, he's gone 8-for-19 (.421) with three doubles and three home runs in five games. Now with 20 home runs on the year, the former first-round draft pick has the fifth-highest total in that category for catchers, and he ranks No. 16 overall at the position in fantasy points.

For managers looking for a hot bat at catcher as we head down the final stretch of the season, the left-handed hitting backstop is available in about half of leagues.

Most Steals Last Seven Days

Data through 9/3

Luis Garcia Jr. was my first instinct to cover here, but the next guy is hotter. Even so, Garcia has shown some life at the plate the last two weeks, hitting .277 with a pair of doubles and two home runs, but also has four steals in the last two weeks. With an xBA 35 points higher than his actual BA, there could be room to end on a high note.

Oswald Peraza (three SBs)

Oswald Peraza joined the Angels at the beginning of August, but received only sporadic starts and pinch-hit at-bats sprinkled in; however, he's been a starter for the Halos in four consecutive games now (three at first base, one at third).

Oswald Peraza - Los Angeles Angels (4)
pic.twitter.com/HUcyrkURhG

— MLB HR Videos (@MLBHRVideos) August 31, 2025

During that four-game stretch, the 25-year-old is 5-for-16 (.313) with a double, a home run, and three steals. With six steals total in 2025, to have three in a four-game stretch is intriguing. The Venezuelan stole as many as 38 bags in the minors in 115 games back in 2021, so he has some speed.

If he can continue to earn starts and produce, more steals could be on the way. Peraza is available in nearly all leagues and is eligible at 2B, 3B, and SS for those searching for steals.

August wRC+ Leaders

Luis Matos (244 wRC+)

Luis Matos has had multiple chances to perform for the Giants over the last three seasons with little success, other than maintaining a well-above-average strikeout rate. In his third stint with the Giants this season, Matos has finally begun to record base hits with some consistency.

Dave Flemming pays tribute to Bob Uecker on this Luis Matos home run call 🎙️ pic.twitter.com/6RFivw5LoQ

— SFGiants (@SFGiants) August 24, 2025

Since his return to the Giants' lineup on August 21, the 23-year-old is 18-for-45 (.400) with three doubles, a triple, and three home runs. He's also collected eight RBI and 11 runs scored while striking out at just a 12.2 percent rate over that time.

Matos was once touted as a potential .300 hitter in the major leagues with an ability to hit 15-20 home runs, and while .300 looks like a stretch at this point; the Venezuelan could finally be displaying some of the promise he had as a former highly regarded prospect.

He's just 11 percent rostered, so managers looking to quickly make up some ground and catch lightning in a bottle down the stretch should consider adding him.

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