José Alvarado

Left-handed pitcher · PHI · 61 appearances · 53.1 innings

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

3.50
SIERA
5.23
ERA
26.5 %
strikeout rate
9.8 %
walk rate
1.54
WHIP

His ERA and his SIERA disagree by 1.73. 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 9.6 points between the two sides — he misses far more bats against right-handed batters. His xFIP barely moves (0.23), because his walk rate rises on the same side he strikes more out — which is exactly why the estimator alone hides this. A gap this size changes the read of a start.

xFIPK%BB%K-BB%HR/9
vs left-handed batters4.2321.0 %8.0 %13.0 %0.90
vs right-handed batters4.0030.6 %11.2 %19.4 %0.88

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.

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