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Yander Bonaci

BOS · Complex · Age 19 · 8.0 IP
LHP Complex BOS
4.50
ERA
Yander Bonaci is a 19-year-old LHP in the BOS organization, currently at the Complex level. Across 8.0 innings, Yander has posted a 4.50 ERA with a 4.34 xFIP and 1.88 WHIP. The strikeout rate sits at 30.0% against a 15.0% walk rate, a 15.0% K-BB% and 16.8% swinging-strike rate.
On the Statcast side, the fastball averages 86.6 mph (topping at 92.7) with +8.3" of induced vertical break and a -6.71° vertical approach angle.
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Core Metrics
ERA
4.50
xFIP
4.34
K%
30.0
BB%
15.0
Command & Stuff
WHIP
1.88
K-BB%
15.0
SwStr%
16.8
IP
8.0
Statcast Fastball Profile
Velo
86.6
Max
92.7
IVB
+8.3"
VAA
-6.71°
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Data via ProspectTilt PitchIQ — live MiLB Statcast analytics.
Stats current as of June 03, 2026. Updated nightly.
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