John Shaffer career ERA

4.57Career Regular Season

John Shaffer has a career ERA of 4.57 over 2 regular seasons.

  • Best season on file: 1.96 in 1886.
  • Most recent: 6.19 in 1887.

Average of 2 regular seasons, 1886 through 1887. Figures come from ESPN's box scores and were last read on September 23, 2026.

John Shaffer career ERA, season by season
GP: Games the player appeared in, however briefly.W: Games in which this pitcher was credited with the win.L: Games in which this pitcher was charged with the loss.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.K: Batters this pitcher struck out.BB: Times the batter reached first base on four balls.WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.SV: Games finished by protecting a narrow lead to the last out.
1886—8531.9669.036291.000
1887—132116.19112.022531.790

What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV

John Shaffer, 1887 regular season

GP
13
R
0
H
148
K
22
L
11
W
2
BB
53
ER
77