David Peterson

Left-handed pitcher · CHC · 20 starts · 131.1 innings

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

4.32
SIERA
5.28
ERA
19.5 %
strikeout rate
9.7 %
walk rate
1.58
WHIP

His ERA and his SIERA disagree by 0.96. 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 strikeout rate moves by 13.6 points between the two sides — he misses far more bats against left-handed batters. His xFIP moves by 2.22 depending on which side the batter stands. A gap this size changes the read of a start.

xFIPK%BB%K-BB%HR/9
vs left-handed batters2.5629.1 %4.7 %24.4 %1.12
vs right-handed batters4.7815.5 %11.8 %3.7 %0.93

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 →