most home runs by a rookie before all-star break

Mark McGwire has crushed the most homers by a rookie before the All-Star Game, with 33 homers in 1987.

	NAME	HR	SEASON	TM	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Mark McGwire M. McGwire	33	1987	OAK	80	289	59	85	10	3	68	39	4	68	0	0	334	200	46	0	2	2	2	.294	.383	.692	1.075
2	Pete Alonso P. Alonso	30	2019	NYM	89	325	57	91	21	2	68	37	12	92	1	0	376	206	53	0	2	0	7	.280	.372	.634	1.006
3	Aaron Judge A. Judge	30	2017	NYY	84	301	75	99	13	3	66	61	4	109	6	2	366	208	46	0	0	5	10	.329	.448	.691	1.139
4	José Abreu J. Abreu	29	2014	CWS	82	322	49	94	20	1	73	22	4	82	1	0	351	203	50	0	3	9	8	.292	.342	.630	.972
5	Cody Bellinger C. Bellinger	25	2017	LAD	70	257	50	67	15	1	58	33	0	85	5	1	292	159	41	0	2	5	2	.261	.342	.619	.961
6	Al Rosen A. Rosen	25	1950	CLE	78	285	62	86	13	4	74	46	3	34	2		335	182	42	1			16	.302	.404	.639	1.043
7	Jose Canseco J. Canseco	23	1986	OAK	90	340	52	93	17	0	78	47	2	104	6	5	395	179	40	0	6	1	9	.274	.359	.526	.886
8	Adolis García A. García	22	2021	TEX	80	311	43	84	10	2	62	16	4	102	8	4	333	164	34	0	2	0	6	.270	.312	.527	.840
9	Daniel Vogelbach D. Vogelbach	21	2019	SEA	85	277	49	66	11	0	51	61	1	79	0	0	341	140	32	0	2	1	3	.238	.375	.505	.881
10	Trevor Story T. Story	21	2016	COL	81	319	52	83	20	4	57	29	4	114	5	3	354	174	45	1	1	2	3	.260	.329	.545	.874
11	Albert Pujols A. Pujols	21	2001	STL	85	313	51	101	18	2	66	33	6	50	0	2	359	186	41	1	6	4	15	.323	.391	.594	.985
12	Dave Kingman D. Kingman	21	1972	SFG	86	314	50	69	11	4	58	34	3	89	15	5	353	151	36	0	2	1	4	.220	.300	.481	.781
13	Bob Allison B. Allison	21	1959	WSH	78	316	52	91	12	5	53	24	0	45	7	5	343	176	38	2	1	1	14	.288	.337	.557	.894
14	Joc Pederson J. Pederson	20	2015	LAD	89	300	46	69	15	1	40	58	6	107	2	5	366	146	36	1	1	4	2	.230	.364	.487	.851
15	Matt Nokes M. Nokes	20	1987	DET	72	254	46	81	9	1	51	21	3	37	2	0	282	152	30	2	2	1	7	.319	.375	.598	.973
16	Wally Joyner W. Joyner	20	1986	CAL	87	348	55	109	14	3	72	28	2	37	2	1	392	189	37	7	7	4	6	.313	.361	.543	.904
17	Willie Horton W. Horton	20	1965	DET	69	248	41	76	14	2	58	23	2	43	3	1	277	154	36	2	2	4	7	.306	.367	.621	.988
18	Josh Jung J. Jung	19	2023	TEX	88	347	62	97	19	1	56	24	3	106	1	2	375	175	39	0	1	0	3	.280	.331	.504	.835
19	Christian Villanueva C. Villanueva	19	2018	SDP	85	271	34	63	11	0	43	17	5	85	2	0	294	131	30	0	1	0	10	.232	.289	.483	.773
20	George Springer G. Springer	19	2014	HOU	76	288	44	67	8	1	50	38	9	112	5	2	337	134	28	0	2	4	4	.233	.338	.465	.804
21	Walt Dropo W. Dropo	19	1950	BSA	64	271	49	93	13	4	83	19	4	33	0		294	171	36	0			4	.343	.395	.631	1.026
22	Corbin Carroll C. Carroll	18	2023	ARI	86	308	63	89	20	3	48	32	6	67	26	2	349	169	41	2	1	1	3	.289	.366	.549	.915
23	Matt Davidson M. Davidson	18	2017	CWS	71	241	31	59	9	1	42	13	1	106	0	1	257	124	28	0	2	0	8	.245	.284	.515	.799
24	Mike Piazza M. Piazza	18	1993	LAD	82	306	47	97	12	1	58	20	2	56	2	2	331	165	31	0	3	1	6	.317	.360	.539	.899
25	Bo Jackson B. Jackson	18	1987	KCR	81	284	38	72	13	1	45	20	4	115	6	2	310	141	32	1	1	0	1	.254	.311	.496	.807