Fred Koster had the fewest batting runs above average by an NL right fielder in 1931, with -13 in his rookie season.

	NAME	BRAA	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	PA	TB	XBH	SH	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+
1	Fred Koster F. Koster	-13	1931	PHN	76	151	21	34	2	2	0	8	14	0	21	4	170	40	4	5	.225	.291	.265	.556	11	-9.6	.268	41
2	Estel Crabtree E. Crabtree	-8.9	1931	CIN	117	443	70	119	12	12	4	37	23	3	33	3	476	167	28	7	.269	.309	.377	.686	50	-8.9	.316	85
3	Mike Kreevich M. Kreevich	-1.8	1931	CHC	5	12	0	2	0	0	0	0	0	0	6	1	12	2	0	0	.167	.167	.167	.333	0	-1.8	.156	-18
4	Lance Richbourg L. Richbourg	-1.8	1931	BSN	97	286	32	82	11	6	2	29	19	0	14	9	311	111	19	6	.287	.331	.388	.719	37	-1.7	.332	96
5	Cliff Heathcote C. Heathcote	-1.7	1931	CIN	90	252	24	65	15	6	0	28	32	0	16	3	286	92	21	2	.258	.342	.365	.707	34	-1.7	.332	95
6	Fred Bennett F. Bennett	-1.2	1931	PIT	32	89	6	25	5	0	1	7	7	0	4	0	97	33	6	1	.281	.333	.371	.704	11	-0.8	.329	91
7	Joel Hunt J. Hunt	-0.3	1931	SLN	4	1	2	0	0	0	0	0	0	0	1	0	1	0	0	0	.000	.000	.000	.000	0	-0.3	.000	-116
8	Alta Cohen A. Cohen	0.7	1931	BKN	1	3	1	2	0	0	0	0	0	0	0	0	3	2	0	0	.667	.667	.667	1.333	1	0.7	.622	274
9	Ray Blades R. Blades	1.6	1931	SLN	35	67	10	19	4	0	1	5	10	2	7	1	81	26	5	2	.284	.392	.388	.780	12	2.1	.371	115
10	Vince Barton V. Barton	1.8	1931	CHC	66	239	45	57	10	1	13	50	21	9	40	1	270	108	24	1	.238	.323	.452	.775	37	3.2	.354	105
11	Freddie Lindstrom F. Lindstrom	5.3	1931	NYG	78	303	38	91	12	6	5	36	26	0	12	5	329	130	23	0	.300	.356	.429	.785	46	5.7	.361	113
12	Wally Roettger W. Roettger	6.4	1931	TOT	89	336	41	108	23	6	1	37	16	4	23	1	367	146	30	11	.321	.360	.435	.794	53	7.4	.365	113
13	Wes Schulmerich W. Schulmerich	6.7	1931	BSN	95	327	36	101	17	7	2	43	28	0	30	0	359	138	26	4	.309	.363	.422	.785	51	6.7	.362	114
14	George Watkins G. Watkins	8.6	1931	SLN	131	503	93	145	30	13	13	51	31	5	66	15	541	240	56	2	.288	.336	.477	.813	79	11.9	.367	112
15	Buzz Arlett B. Arlett	19.7	1931	PHN	121	418	65	131	26	7	18	72	45	5	39	3	469	225	51	1	.313	.387	.538	.925	87	29.1	.417	133
16	Paul Waner P. Waner	27.3	1931	PIT	150	559	88	180	35	10	6	70	73	4	21	6	646	253	51	10	.322	.404	.453	.857	110	29.7	.397	133
17	Babe Herman B. Herman	30.2	1931	BKN	151	610	93	191	43	16	18	97	50	0	65	17	661	320	77	1	.313	.365	.525	.890	114	31.9	.399	135
18	Kiki Cuyler K. Cuyler	33.1	1931	CHC	154	613	110	202	37	12	9	88	72	5	54	13	710	290	58	20	.330	.404	.473	.877	124	36.6	.404	136