RYAN ZEFERJAHN
#56 - P
724239
Status On roster
Ht/Wt 6’5’’, 209 lbs
Bats/Throws R / R
Experience 0 years ‘-’
Debut Aug 25, 2024
Born Feb 28, 1998 (28 yrs) Topeka, Kansas
Hometown Topeka, Kansas
Drafted Drafted by Boston in 2019 (3/107).
Drafted from Kansas (KS)
Acquired Acquired in a trade with Boston in 2024.
VS.
Ryan Zeferjahn
Leader
STAT RANK
2 8
Wins Aaron Ashby
118 1
30 88
Strikeouts Jacob Misiorowski
146 1
1 17
Saves Cade Smith
68 1
24.1 72.1
Innings pitched Cristopher Sanchez
191 1
4 17
Holds Erik Sabrowski
78 1
19 26
Games Braydon Fisher, Mason Fluharty, Brent Headrick, Hogan Harris
117 1
4 17
Holds Erik Sabrowski
43 1
19 26
Games Mason Fluharty, Brent Headrick, Braydon Fisher, Hogan Harris
55 1
24.1 69.1
Innings pitched Gavin Williams
94 1
2 7
Wins Davis Martin, Gavin Williams
53 1
30 84
Strikeouts Gavin Williams, Dylan Cease
76 1
1 17
Saves Cade Smith
32 1
Season Stats
Pitcher
W
Wins
L
Losses
ERA
Earned Run Average
G
Games
GS
Games Started
CG
Complete Games
SHO
Shutouts
SV
Saves
HLD
Holds
IP
Innings Pitched
H
Hits Allowed
R
Runs Allowed
ER
Earned Runs
HR
Home Runs Allowed
BB
Walks
SO
Strikeouts
WHIP
Walks and Hits Per Inning Pitched
YTD 2 2 4.81 19 0 0 0 1 4 24.1 15 15 13 1 15 30 1.23
Game Log
Pitcher
Date Team Opp GS
Games Started
Dec CG
Complete Games
SHO
Shutouts
IP
Innings Pitched
H
stats.by_season.headers.baseball.pitching.regular-season.tooltipss.h
R
stats.by_season.headers.baseball.pitching.regular-season.tooltipss.r
ER
Earned Runs
HR
Home Runs Allowed
BB
Walks
K YTD W YTD L YTD SV YTD ERA YTD WHIP Status
2026-05-24 - - - - - - - - - - - 2 2 1 4.81 - DNP
2026-05-23 0 H 0 0 1.0 1 1 1 1 0 1 2 2 1 4.81 1.23 -
2026-05-22 - - - - - - - - - - - 2 2 1 4.63 - DNP
2026-05-21 0 L 0 0 1.0 0 1 0 0 2 0 2 2 1 4.63 1.24 -
2026-05-20 0 H 0 0 0.1 0 1 1 0 0 0 2 1 1 4.84 1.21 -
Transactions & Injuries
Date Description
2025-09-22 Missed 15 games (Knee tendinitis - right).
2025-09-06 Knee tendinitis - right, 15-Day IL.
2025-04-07 Returned from injury (Hamstring injury).
2025-04-05 Hamstring injury, day-to-day.
2024-08-23 Contract purchased from Salt Lake (AAA).