2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
Rest-of-Season Projections

Rolling for Trash Pandas
Klassen has a 1.17 ERA, 1.26 WHIP and 32:11 K:BB in 23 innings over his last four starts for Double-A Rocket City.
Analysis
Klassen has some of the best pure stuff in the minors, and it's on brand for him to have a higher WHIP than ERA over this dominant stretch. He's cut his walk rate from 17.3 percent in seven starts at Double-A to close 2024 to 10 percent in 24 starts this year while logging a career-high 102.2 innings. His command still comes and goes, and he has six starts this year in which he has given up five or more earned runs, although he also has six starts with eight or more strikeouts. Klassen's below-average control may push him to the bullpen eventually, but the Angels figure to give him every opportunity to develop as a starting pitcher over the next couple years.
Klassen has some of the best pure stuff in the minors, and it's on brand for him to have a higher WHIP than ERA over this dominant stretch. He's cut his walk rate from 17.3 percent in seven starts at Double-A to close 2024 to 10 percent in 24 starts this year while logging a career-high 102.2 innings. His command still comes and goes, and he has six starts this year in which he has given up five or more earned runs, although he also has six starts with eight or more strikeouts. Klassen's below-average control may push him to the bullpen eventually, but the Angels figure to give him every opportunity to develop as a starting pitcher over the next couple years.
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Minor League Game Log
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Minor League Left/Right Pitching Splits (AA)
Since 2023
-16%
BAA vs LHP
2025
-12%
BAA vs LHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .239 | 86 | 34 | 67 | 4 |
Since 2023vs Right | .284 | 76 | 34 | 63 | 6 |
2025vs Left | .249 | 68 | 23 | 58 | 3 |
2025vs Right | .284 | 58 | 23 | 48 | 5 |
2024vs Left | .191 | 18 | 11 | 9 | 1 |
2024vs Right | .283 | 18 | 11 | 15 | 1 |
2023vs Left | 0 | 0 | 0 | 0 | 0 |
2023vs Right | 0 | 0 | 0 | 0 | 0 |
Prospect Rankings History
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More Fantasy News

Returns from minor-league IL
Klassen (concussion) was activated from Double-A Rocket City's 7-day injured list Sunday.
Analysis
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Goes on IL
Double-A Rocket City placed Klassen (concussion) on its 7-day injured list Tuesday.
Analysis
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Alert after taking liner to head
Klassen is awake and alert after taking a line drive to the head in his start with Double-A Rocket City on Sunday, Sam Blum of The Athletic reports.
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Dealt to Angels
The Angels acquired Klassen and left-hander Samuel Aldegheri from the Phillies on Saturday in exchange for right-hander Carlos Estevez, Scott Lauber of The Philadelphia Inquirer reports.
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Moves up to High-A
The Phillies promoted Klassen from Single-A Clearwater to High-A Jersey Shore on Monday, Jonathan Mayo of MLB.com reports.
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