Mookie Betts had the highest batting average in 2018, with an average of .346.

Interpreted as:

2018 MLB highest batting average with a minimum of 3.1 PA per team game by a player

	NAME	AVG	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Mookie Betts M. Betts	.346	2018	BOS	136	520	129	180	47	5	32	80	81	8	91	30	6	614	333	84	0	5	8	5	.438	.640	1.078	139	67.2	.449	185	62.7
2	J.D. Martinez	.330	2018	BOS	150	569	111	188	37	2	43	130	69	4	146	6	1	649	358	82	0	7	11	19	.402	.629	1.031	136	59.7	.427	171	54.9
3	Christian Yelich C. Yelich	.326	2018	MIL	147	574	118	187	34	7	36	110	68	7	135	22	4	651	343	77	0	2	2	14	.402	.598	1.000	133	57	.422	167	53.6
4	Jose Altuve J. Altuve	.316	2018	HOU	137	534	84	169	29	2	13	61	55	6	79	17	4	599	241	44	3	1	4	17	.386	.451	.837	94	23.8	.363	135	25
5	Mike Trout M. Trout	.312	2018	LAA	140	471	101	147	24	4	39	79	122	10	124	24	2	607	296	67	0	4	25	5	.460	.628	1.088	136	65.3	.447	189	64.4
6	Scooter Gennett S. Gennett	.310	2018	CIN	154	584	86	181	30	3	23	92	42	4	125	4	2	638	286	56	3	5	3	14	.357	.490	.847	99	24.5	.362	125	19.6
7	Freddie Freeman F. Freeman	.309	2018	ATL	162	618	94	191	44	4	23	98	76	7	132	10	3	707	312	71	0	6	12	11	.388	.505	.892	119	36.4	.378	136	31.1
8	Michael Brantley M. Brantley	.309	2018	CLE	143	570	89	176	36	2	17	76	48	5	60	12	3	630	267	55	1	6	0	15	.364	.468	.832	96	22.7	.359	125	18.8
9	Anthony Rendon A. Rendon	.308	2018	WSH	136	529	88	163	44	2	24	92	55	5	82	2	1	597	283	70	0	8	5	5	.374	.535	.909	103	33.2	.383	139	28.7
10	Lorenzo Cain L. Cain	.308	2018	MIL	141	539	90	166	25	2	10	38	71	8	94	30	7	620	225	37	0	2	1	10	.395	.417	.813	95	22.3	.359	125	19.1
11	Ben Zobrist B. Zobrist	.305	2018	CHC	139	455	67	139	28	3	9	58	55	2	60	3	4	520	200	40	1	7	1	8	.378	.440	.817	78	16.9	.355	123	14.8
12	Jose Martinez J. Martinez	.305	2018	STL	152	534	64	163	30	0	17	83	49	2	104	0	3	590	244	47	2	3	0	15	.364	.457	.821	89	19.8	.356	127	19.4
13	Whit Merrifield W. Merrifield	.304	2018	KCR	158	632	88	192	43	3	12	60	61	6	114	45	10	707	277	58	2	6	2	12	.367	.438	.806	103	20	.349	119	16.4
14	Jean Segura J. Segura	.304	2018	SEA	144	586	91	178	29	3	10	63	32	4	69	20	11	632	243	42	4	6	2	17	.341	.415	.755	80	6.1	.327	110	7.3
15	Joey Wendle J. Wendle	.300	2018	TBR	139	487	62	146	33	6	7	61	37	9	96	16	4	545	212	46	2	10	4	11	.354	.435	.789	74	10.2	.338	117	11.3
16	Corey Dickerson C. Dickerson	.300	2018	PIT	135	504	65	151	35	7	13	55	21	4	80	8	3	533	239	55	0	4	4	14	.330	.474	.804	74	11.2	.341	114	9.1
17	Nick Castellanos N. Castellanos	.298	2018	DET	157	620	88	185	46	5	23	89	49	6	151	2	1	678	310	74	0	3	5	8	.354	.500	.854	106	26.7	.363	129	23.3
18	Manny Machado M. Machado	.297	2018	TOT	162	632	84	188	35	3	37	107	70	2	104	14	2	709	340	75	0	5	18	26	.367	.538	.905	119	35.9	.377	141	34.9
19	Nick Markakis N. Markakis	.297	2018	ATL	162	623	78	185	43	2	14	93	72	1	80	1	1	705	274	59	0	9	10	18	.366	.440	.806	100	17.2	.345	114	11.9
20	Miguel Andujar M. Andujar	.297	2018	NYY	149	573	83	170	47	2	27	92	25	4	97	2	1	606	302	76	0	4	2	9	.328	.527	.855	94	22.9	.361	129	21.2
21	Nolan Arenado N. Arenado	.297	2018	COL	156	590	104	175	38	2	38	110	73	3	122	2	2	673	331	78	1	6	10	16	.374	.561	.935	120	41.7	.391	133	27.2
22	Mallex Smith M. Smith	.296	2018	TBR	141	480	65	142	27	10	2	40	47	8	98	40	12	544	195	39	7	2	0	11	.367	.406	.773	75	11	.339	119	12.1
23	Matt Duffy M. Duffy	.294	2018	TBR	132	503	59	148	22	1	4	44	47	7	93	12	6	560	184	27	1	2	1	12	.361	.366	.727	69	3.9	.323	107	5
24	David Peralta D. Peralta	.293	2018	ARI	146	560	75	164	25	5	30	87	48	4	124	4	0	614	289	60	0	2	4	14	.352	.516	.868	99	26.9	.368	131	22.9
25	Andrelton Simmons A. Simmons	.292	2018	LAA	146	554	68	162	26	5	11	75	35	5	44	10	2	600	231	42	1	5	2	17	.337	.417	.754	76	5.5	.326	106	4.6