Jesse Petty career ERA

• Best season on file: 2.00 in 1921.
• Most recent: 5.69 in 1930.

Average of 7 regular seasons, 1921 through 1930. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Jesse Petty career ERA, season by season

Season↓	Team↓	GP↓iGP: Games the player appeared in, however briefly.	W↓iW: Games in which this pitcher was credited with the win.	L↓iL: Games in which this pitcher was charged with the loss.	ERA↓iERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.	IP↓iIP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.	K↓iK: Batters this pitcher struck out.	BB↓iBB: Times the batter reached first base on four balls.	WHIP↓iWHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.	SV↓iSV: Games finished by protecting a narrow lead to the last out.
1921	CLE	4	0	0	2.00	9.0	0	0	1.11	0
1925	LAD	28	9	9	4.88	153.0	39	47	1.54	0
1926	LAD	38	17	17	2.84	275.2	101	79	1.18	1
1927	LAD	42	13	18	2.98	271.2	101	53	1.16	1
1928	LAD	40	15	15	4.04	234.0	74	56	1.37	1
1929	PIT	36	11	10	3.71	184.1	58	42	1.30	0
1930	PIT/CHC	19	2	9	5.69	80.2	34	19	1.70	1

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