PitchIQ MiLB PITCH INTELLIGENCE · PROSPECTTILT
Players / BOS / Rony Calderon

Rony Calderon

BOS · Complex · Age 17 · 8.1 IP
LHP Complex BOS
4.32
ERA
Rony Calderon is a 17-year-old LHP in the BOS organization, currently at the Complex level. Across 8.1 innings, Rony has posted a 4.32 ERA with a 7.33 xFIP and 1.68 WHIP. The strikeout rate sits at 22.5% against a 25.0% walk rate, a -2.5% K-BB% and 13.7% swinging-strike rate.
On the Statcast side, the fastball averages 87.9 mph (topping at 93.1) with +12.3" of induced vertical break and a -5.51° vertical approach angle.
View Full Interactive Profile →
Core Metrics
ERA
4.32
xFIP
7.33
K%
22.5
BB%
25.0
Command & Stuff
WHIP
1.68
K-BB%
-2.5
SwStr%
13.7
IP
8.1
Statcast Fastball Profile
Velo
87.9
Max
93.1
IVB
+12.3"
VAA
-5.51°
More BOS Pitchers
Data via ProspectTilt PitchIQ — live MiLB Statcast analytics.
Stats current as of June 03, 2026. Updated nightly.
Browse all players · Interactive leaderboards