Robby Ahlstrom

Left-handed pitcher · TEX · 42 appearances · 37 innings

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

4.10
SIERA
6.08
ERA
20.7 %
strikeout rate
9.2 %
walk rate
1.43
WHIP

His ERA and his SIERA disagree by 1.98. 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

His two sides rest on 37 innings this season — too few to read as a trait. The numbers below are his; the conclusion is not.

xFIPK%BB%K-BB%HR/9
vs left-handed batters3.2524.1 %2.5 %21.5 %1.47
vs right-handed batters5.7617.6 %15.3 %2.4 %1.93

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 →