Hitter Fantasy Baseball Breakouts - Risers to Watch and Waiver Wire Outlooks (Week 10)

May 29, 2026

Jarod's hitter fantasy baseball breakouts, sleepers, and risers to watch for Week 10 of 2026. His list includes waiver wire outlooks and underachieving hitters.

Welcome back to my Fantasy Baseball Breakout Hitters article for Week 10 of the 2026 MLB regular season. The focus of this column is to highlight players who could be breaking out, taking a look at current active hitting streaks along with recent leaders in batting average, isolated power (ISO), stolen bases, and more.

Some of the highlights for this week include Ketel Marte, Nathaniel Lowe, and Trent Grisham. Many of the hitters discussed here are widely available in fantasy leagues, so it's a good move to give them a chance here.

Do note that any time we talk about rostered percentages or positional eligibility, we're referring to Yahoo! leagues. With that in mind, let's dive into potential hitter breakouts for Week 10 of the 2026 MLB season.

Hit Streak Leaders

Ketel Marte (11 games)

Marte won't be found on any waiver wires, so we won't spend a ton of time on him, but it's worth pointing out how hot he is right now, especially for DFS players. The switch-hitter has gone nuclear over the last two weeks, hitting a sizzling .511 (24-for-47) over his last 11 games, including six doubles, four home runs, 17 RBI, 14 runs scored, and more walks (four) than strikeouts (three).

It has pushed his season-long slash line to .276/.326/.476 with a .351 wOBA and 124 wRC+. Think this streak doesn't have room to run? As hot as he's been, the 32-year-old's xwOBA for the season is .381, 30 points higher than his actual wOBA. If you're looking for an angle in DFS, he's been particularly good at home, with a 140 wRC+ there compared to a 106 wRC+ on the road.

Nathaniel Lowe (seven games)

We talked about Lowe back ahead of Week 6 because of a power binge he was on; well, now he's here because he's also consistently stacking hits. The veteran's hit streak is up to seven games, during which time he's gone 10-for-26 (.385) with four doubles, two home runs, eight RBI, five runs scored, and a 4:6 BB:K.

For the season, the 6-foot-4 slugger is batting .274 with a robust .912 OPS, a .396 wOBA, and a 151 wRC+. The drawback here is that the left-handed slugger has seen his playing time dip since Eugenio Suarez returned to the lineup, which can be frustrating in season-long leagues, but in leagues with daily lineup changes, the 30-year-old is a viable bat against right-handed pitchers. Lowe is still available in nearly all leagues despite his productivity.

Highest Batting Average Last Seven Days

Data through 5/27

Brayan Rocchio (.474 BA)

I made the case for rostering Brayan Rocchio back in Week 8's article because of his newfound ability to steal bases at a higher rate than he's shown in the past, but he's hitting the ball well, too. It's not just over the last week either, as his batting average has gone from .275 ahead of Week 8, all the way to .298 as of May 27.

As it stands, the switch-hitter is the author of a .298/.379/.421 slash line with a .325 wOBA and 131 wRC+. The 25-year-old has done a little bit of everything, belting four home runs, driving in 27, scoring 25 times, and swiping nine bases (career high is 10 in '24 over 143 games). The Venezuelan has cut his strikeout rate from 20.1 percent to 11.2 percent year-over-year, while upping his walk rate from 5.7 percent to 9.3 percent.

This looks like real development, and although his rostership has increased considerably over the past couple of weeks, he can still be found in almost half of leagues. Want more? The 5-foot-9 Rocchio is eligible at both SS and 2B, adding to his fantasy appeal.

Isiah Kiner-Falefa (.462 BA)

The injury to Trevor Story (hernia) has opened the door to playing time for Isiah Kiner-Falefa, but he's also logged two of his last four starts at third base as Caleb Durbin has seen his playing time trend downward. Since a pinch-hit single back on May 17, IKF has gone 8-for-17 (.471) with two doubles, a home run, six RBI, three runs scored, and a stolen base in seven games where he had at least one at-bat.

IKF to the Monster! pic.twitter.com/JT5gnvH2px

— Red Sox (@RedSox) May 27, 2026

For the season, the 31-year-old is hitting .276 and has an above-average 9.2 percent walk rate paired with a low 15.4 percent strikeout rate, the latter of which is in line with his career rate (15.7 percent). The veteran has a career batting average of .262 and a strong contact rate of 86.4 percent, so expect him to keep putting the bat on the ball, and with five straight seasons of double-digit steals, he could contribute there as well.

The right-handed hitter is available in nearly all leagues, and his eligibility at 2B, 3B, and SS should give him some added appeal. Managers looking for some infield help should pick him up and play him while he's hot.

Highest ISO Last Seven Days

Data through 5/27

Yordan Alvarez (.882 ISO)

It's great to see Yordan Alvarez healthy because he is one of the most dangerous bats in all of baseball. He's shown just what he's capable of over the last week, with five of his seven hits going for home runs. The three-time All-Star now has 20 home runs on the year, and is hitting over .300 against both righties and lefties alike. Fire him up in DFS any day of the week.

Joc Pederson (.588 ISO)

Joc Pederson is getting regular at-bats as the Rangers' designated hitter, and he's gone on a mini power binge lately, blasting three home runs in his last two games, driving in five runs, and scoring four times in those two contests. The 6-foot-1 slugger also had a four-hit game as recently as May 19.

He does it again‼️

Joc Pederson with his second home run of the night to bring the Rangers within one.@RangersSNtv | #MLB pic.twitter.com/Pvv0uT7Jj6

— Victory+ (@victoryplustv) May 28, 2026

With a 14.7 percent walk rate this season, the 34-year-old also owns a strong .361 OBP, along with a .353 wOBA and 126 wRC+ in 51 games. The left-handed hitter plays mostly against right-handed pitchers, which limits his appeal somewhat in season-long leagues, but for managers looking for some power production and willing to ride a hot hand, Pederson is worth a look.

Evan Carter (.500 ISO)

Evan Carter is batting just .175 this season, and outside of a recent three-hit game that made him pop up on this list, he's been even worse. Still, with his ability to steal bases (three in the past week), the former second-round draft pick is worth keeping an eye on to see if the three-hit game (which included a single, a triple, and a home run) gets him going.

The 23-year-old has 90th percentile sprint speed and is pacing for over 20 steals if he can manage to stay in the lineup enough to reach at least 500 plate appearances.

Most Steals Last Seven Days

Data through 5/27

Sam Antonacci (three SB)

Sam Antonacci has held his own in his rookie season, slashing .287/.389/.355 with a .386 wOBA and 126 wRC+, but after stealing zero bases through his first 18 games, the 23-year-old now has seven steals in his last 20 contests. That's notable in itself, but with 48 steals in 116 games in the minors in 2025, there's also precedent, and many more could follow. The former fifth-round draft pick is rostered in just 20 percent of leagues, and is eligible at 2B, 3B, and OF. Go get him!

Leody Taveras (three SB)

With six steals on the season, you won't find Leody Taveras on the stolen base leaderboard, but three of those steals came in the last week alone. For a guy who stole 23 bases as recently as 2024 (529 plate appearances that season), it's worth taking a deeper look. That's another 20-steal season at his current pace if he can reach 530 PA.

What's more is that the switch-hitter has collected multiple hits in three straight games and has scored nine times in his last 11 contests. The 27-year-old is now slashing a respectable .278/.377/.398 with better-than-average strikeout (21.0 percent) and walk rates (12.7 percent).

GRAND SLAM LEODY TAVERAS ‼️

The @Orioles are pulling away in extras! pic.twitter.com/qZxT1Sxlg4

— MLB (@MLB) April 21, 2026

A 4.9 percent barrel rate does not foretell much power to come, and he's been more productive against righties (154 wRC+) than lefties (63 wRC+), but the 6-foot-2 Dominican could still be a multi-category contributor, who is available in most leagues.

wRC+ Leaderboard May 21 - May 27

Data through 5/27

Trent Grisham (240 wRC+)

After a 34-homer campaign a season ago that came with a .353 wOBA and 129 wRC+, Grisham's bat is starting to show signs of life over the past week, hitting safely in six of his last seven games, going 11-for-24 (.458) over that stretch, including three doubles and a home run. The 29-year-old's chase, strikeout, swinging-strike, and walk rate are all better than last year's numbers, while barrel and hard-hit rate are virtually unchanged.

Trent Grisham leaves the yard!

The @Yankees have put up 5 runs in the 3rd! pic.twitter.com/RJYgGnevoG

— MLB (@MLB) May 12, 2026

With an xBA that is 24 points higher than his actual BA (.206), an xwOBA that is 21 points higher than his actual wOBA (.322), and a low .220 BABIP (career .260), the signs point to this hot streak having the ability to continue. The left-handed slugger is available in over half of leagues.

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