Michael Busch has the highest wRC+ by a first baseman this season, with 158 wRC+.

Interpreted as:

highest wrc+ with a minimum of 3.1 PA per team game by 1b this regular season

	NAME	WRC+	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	BRAA
1	Michael Busch M. Busch	158	2025	CHC	94	312	47	89	15	3	20	60	37	6	83	4	0	355	170	38	0	0	1	1	.285	.372	.545	.917	64	22.7	.393	24
2	Jonathan Aranda J. Aranda	150	2025	TBR	94	326	48	103	20	0	11	50	35	8	90	0	1	371	156	31	0	2	2	7	.316	.394	.479	.872	63	19.8	.380	21.4
3	Pete Alonso P. Alonso	149	2025	NYM	101	374	53	102	26	1	21	77	47	12	101	1	2	437	193	48	0	4	4	14	.273	.368	.516	.884	74	22.7	.378	24.7
4	Bryce Harper B. Harper	145	2025	PHI	72	269	43	73	22	0	13	41	44	4	65	9	0	319	134	35	0	2	2	3	.271	.379	.498	.877	54	16.7	.378	16.7
5	Vladimir Guerrero Jr. V. Guerrero Jr.	134	2025	TOR	98	362	62	101	19	0	13	48	60	6	59	5	2	430	159	32	0	2	7	9	.279	.388	.439	.828	67	16.4	.361	16.9
6	Ryan O'Hearn R. O'Hearn	133	2025	BAL	86	288	40	80	14	0	12	36	40	5	56	3	1	335	130	26	0	2	3	8	.278	.373	.451	.825	51	12.3	.359	13.1
7	Freddie Freeman F. Freeman	133	2025	LAD	88	329	47	96	27	1	10	49	35	4	85	1	1	371	155	38	0	3	5	8	.292	.364	.471	.835	57	13.3	.358	14.2
8	Matt Olson M. Olson	133	2025	ATL	99	374	56	98	25	0	18	64	59	2	104	0	0	438	177	43	0	3	2	11	.262	.363	.473	.836	68	17.2	.362	16.7
9	Josh Naylor J. Naylor	125	2025	AZ	91	341	49	100	19	1	11	58	37	2	48	11	2	384	154	31	0	4	4	13	.293	.362	.452	.814	56	11.6	.351	11.2
10	Spencer Torkelson S. Torkelson	124	2025	DET	95	339	55	79	20	0	21	59	46	9	96	1	1	399	162	41	0	5	5	10	.233	.336	.478	.814	57	10.8	.347	11.2
11	Willson Contreras W. Contreras	120	2025	STL	95	351	48	90	24	0	13	57	32	14	100	4	0	400	153	37	1	2	1	9	.256	.341	.436	.777	55	8.6	.340	9.5
12	Paul Goldschmidt P. Goldschmidt	115	2025	NYY	94	346	57	100	23	1	8	37	29	2	66	5	1	378	149	32	0	1	5	7	.289	.347	.431	.777	51	6.7	.336	6.7
13	Rhys Hoskins R. Hoskins	114	2025	MIL	82	269	30	65	12	1	12	42	38	5	85	2	1	318	115	25	0	6	2	6	.242	.340	.428	.767	42	5	.333	5
14	Nolan Schanuel N. Schanuel	111	2025	LAA	96	355	48	96	17	1	8	40	45	7	49	4	1	412	139	26	3	2	4	8	.270	.362	.392	.753	54	6.4	.333	5.4
15	Luis Arraez L. Arraez	101	2025	SDP	94	381	41	108	17	4	5	36	19	2	12	5	2	411	148	26	6	3	0	5	.283	.319	.388	.707	46	-1.4	.309	0.5
16	Vinnie Pasquantino V. Pasquantino	101	2025	KCR	100	387	38	102	14	1	15	57	29	5	72	1	0	423	163	30	0	2	3	4	.264	.322	.421	.743	52	3	.322	0.5
17	Carlos Santana C. Santana	95	2025	CLE	93	325	43	75	7	0	11	43	45	3	70	6	0	377	115	18	0	4	1	6	.231	.326	.354	.680	41	-2.7	.304	-2.4
18	Nathaniel Lowe N. Lowe	94	2025	WSH	100	378	46	86	14	2	15	62	37	1	113	1	0	418	149	31	0	2	0	5	.228	.297	.394	.691	45	-3.6	.303	-3.1
19	Spencer Steer S. Steer	91	2025	CIN	93	338	41	84	15	1	11	41	25	4	86	6	1	368	134	27	0	1	0	9	.249	.307	.396	.704	42	-1.3	.309	-3.9
20	Christian Walker C. Walker	89	2025	HOU	94	361	39	84	13	1	13	51	25	7	107	1	0	396	138	27	0	3	0	9	.233	.293	.382	.675	41	-5.4	.297	-5
21	Ty France T. France	87	2025	MIN	94	330	38	81	16	0	6	42	15	16	57	1	0	362	115	22	0	1	0	8	.245	.309	.348	.658	37	-5.5	.294	-5.6
22	Eric Wagaman E. Wagaman	72	2025	MIA	89	330	33	78	20	1	5	33	22	0	68	3	1	356	115	26	0	4	0	10	.236	.281	.348	.629	31	-10.7	.276	-11.5
23	Michael Toglia M. Toglia	61	2025	COL	81	286	20	57	15	1	10	31	27	1	121	3	0	316	104	26	0	2	2	7	.199	.269	.364	.633	27	-9.7	.275	-14.5