Miles Mastrobuoni

Miles Mastrobuoni

29-Year-Old Third Baseman3B
Seattle Mariners
2025 Fantasy Outlook
Across two seasons in Chicago, Mastrobuoni has turned into a serviceable utility player with limited offensive upside. The left-hand hitting batter appeared in 50 games for the Cubs in 2024 and posted a .194/.245/.224 slash line with no home runs. Mastrobuoni was a bit better in 2023, when he posted a .609 OPS and one long ball across 61 games while also swiping 13 bags in just 14 attempts. The 29-year-old can play pretty much anywhere in the field, and his speed is a useful asset when he's on base. However, he simply doesn't hit or play enough to really move the fantasy needle. Heading into 2025, Mastrobuoni will likely compete for an Opening Day bench spot, but he could also start the year with Triple-A Omaha. Injuries on the MLB roster could open up a larger role, though for now, Mastrobuoni isn't really a viable option. Read Past Outlooks
$Signed a one-year contract with the Cubs in March of 2024. Traded to the Mariners in January of 2025.
Dealt to Seattle
3BSeattle Mariners
January 14, 2025
The Mariners acquired Mastrobuoni from the Cubs on Tuesday in exchange for cash considerations, Meghan Montemurro of the Chicago Tribune reports.
ANALYSIS
Mastrobuoni had been designated for assignment but will now get to join a new 40-man roster. A .219/.279/.263 hitter across 272 career plate appearances in the majors, the utility player will compete for a reserve role this spring but does have minor-league options remaining.
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Batting Stats
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2025
2024
2023
2022
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2024 MLB Game Log
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2023 MLB Game Log
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Left/Right Batting Splits
Since 2023
 
 
+25%
OPS vs RHP
2025
 
 
-100%
OPS vs RHP
2024
 
 
+30%
OPS vs RHP
2023
 
 
+10%
OPS vs RHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .456 30 2 0 2 2 .214 .241 .214
Since 2023vs Right .570 226 31 1 7 13 .225 .290 .279
2025vs Left 0 0 0 0 0 0 0 0 0
2025vs Right 2.000 1 0 0 0 0 1.000 1.000 1.000
2024vs Left .375 16 1 0 1 0 .188 .188 .188
2024vs Right .487 90 8 0 3 2 .195 .256 .232
2023vs Left .558 14 1 0 1 2 .250 .308 .250
2023vs Right .614 135 23 1 4 11 .240 .308 .306
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Home/Away Batting Splits
Since 2023
 
 
+1%
OPS on Road
2025
 
 
-100%
OPS at Home
2024
 
 
+98%
OPS on Road
2023
 
 
+35%
OPS at Home
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home .553 128 16 1 4 8 .218 .268 .286
Since 2023Away .558 128 17 0 5 7 .230 .302 .257
2025Home 2.000 1 0 0 0 0 1.000 1.000 1.000
2025Away 0 0 0 0 0 0 0 0 0
2024Home .310 49 2 0 2 1 .125 .143 .167
2024Away .613 57 7 0 2 1 .260 .333 .280
2023Home .695 78 14 1 2 7 .271 .338 .357
2023Away .513 71 10 0 3 6 .206 .275 .238
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Recent RotoWire Articles Featuring Miles Mastrobuoni See More
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315 days ago
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Past Fantasy Outlooks
2024
2023
Mastrobuoni saw his most extended run at the MLB level in 2023, and while his overall numbers weren't overly impressive, he did finish the season well. The 28-year-old finished with a .241/.308/.301 slash line with a home run and five RBI across 61 games. However, in the final month of the season he slashed .333/.353/.394 across 16 games, and he started to see more regular playing time as a result. Mastrobuoni's biggest contribution throughout the year was his speed, as he managed 13 stolen bases in only 14 attempts. And while he primarily played at third base, Mastrobuoni also saw time at shortstop, second base and in right field. Heading into 2024, it looks like Mastrobuoni could serve as a utility player with the Cubs due to the versatility he displayed last season. It might not be the most fantasy-friendly role, though Mastrobuoni showed he can have a little value when he sees the field, particularly because of his ability to swipe bases.
Mastrobuoni spent most of the season with Triple-A Durham, slashing .300/.377/.469 with 23 steals in 26 attempts. His exploits earned him a late September promotion. Unfortunately, Mastrobuoni struggled, fanning six times in 17 plate appearances. Undeterred, the Cubs traded for Mastrobuoni where he'll have a chance to win a reserve role in the spring. Mastrobuoni can play all three outfield positions as well as both middle infield spots. His versatility bodes well for a utility job, but beware, while his numbers with the Bulls were solid, he was 26 years old, a bit elderly for the level. Because he can run, Mastrobuoni is worth monitoring, but he has a lot to prove before showing up on the fantasy radar.
More Fantasy News
Loses 40-man spot
3BChicago Cubs
January 9, 2025
The Cubs designated Mastrobuoni for assignment Thursday, Andy Martinez of Marquee Sports Network reports.
ANALYSIS
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Sent down to minors
3BChicago Cubs
September 25, 2024
The Cubs optioned Mastrobuoni to Triple-A Iowa on Wednesday, Taylor McGregor of Marquee Sports Network reports.
ANALYSIS
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Moves up from Triple-A
3BChicago Cubs
September 1, 2024
The Cubs recalled Mastrobuoni from Triple-A Iowa on Sunday.
ANALYSIS
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Optioned to Iowa
3BChicago Cubs
July 30, 2024
The Cubs optioned Mastrobuoni to Triple-A Iowa on Tuesday, Meghan Montemurro of the Chicago Tribune reports.
ANALYSIS
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Losing playing time
3BChicago Cubs
July 21, 2024
Mastrobuoni is out of the lineup for Sunday's game against the Diamondbacks.
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Latest Fantasy Rumors
Could join big-league roster
3BChicago Cubs
June 18, 2024
Mastrobuoni is with the Cubs as a member of the taxi squad Tuesday as Mike Tauchman is banged up with a groin injury, reports Meghan Montemurro of the Chicago Tribune.
ANALYSIS
Mastrobuoni may not be added to the big-league roster but is with the club as depth in case Tauchman is moved to the injured list. Mastrobuoni has a .125/.222/.150 slash line in 45 plate appearances with the Cubs this season and isn't likely to be relevant for fantasy managers even if active.
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