Luis Arroyo ERA in 1963

• Luis Arroyo's highest ERA of the 8 seasons on file; the best is 2.19 in 1961.
• Up 8.69 from 4.81 in 1962.

Best of 8 regular seasons, 1955 through 1963. Figures come from ESPN's box scores and were last read on September 23, 2026.

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Luis Arroyo ERA in 1963, 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.
1955	STL	35	11	8	4.19	159.0	68	63	1.42	0
1956	PIT	18	3	3	4.71	28.2	17	12	1.67	0
1957	PIT	54	3	11	4.68	130.2	101	31	1.39	1
1959	CIN	10	1	0	3.95	13.2	8	11	2.05	0
1960	NYY	29	5	1	2.88	40.2	29	22	1.28	7
1961	NYY	65	15	5	2.19	119.0	87	49	1.11	29
1962	NYY	27	1	3	4.81	33.2	21	17	1.49	7
1963	NYY	6	1	1	13.50	6.0	5	3	2.50	0

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