Ryan Zeferjahn

Right-handed pitcher · CHC · 59 appearances · 64.2 innings

Not on today's probable starters. This page updates every hour.

3.44
SIERA
4.18
ERA
31.1 %
strikeout rate
13.2 %
walk rate
1.27
WHIP

His ERA and his SIERA disagree by 0.74. The ERA is the harsh one — he has pitched better than his run prevention shows. SIERA is built from strikeouts, walks and contact, so it settles far faster than ERA does.

Against left-handed and right-handed batters

Neither his xFIP (0.55 between sides) nor his strikeout rate (2.0 points) moves much depending on the batter’s hand. That is worth knowing too: the read on his night has to come from somewhere else.

xFIPK%BB%K-BB%HR/9
vs left-handed batters4.1130.0 %14.6 %15.4 %1.59
vs right-handed batters3.5632.0 %12.0 %20.0 %0.50

xFIP rather than SIERA by hand: FanGraphs does not publish SIERA in its splits. The two describe the same thing and correlate at about 0.95.

Tonight's bullpen report →