How does Mookie Betts first 3 years stack up in MLB?

Really good. And there is still 89 games to go.

Criteria is. First 3 years of career, 23 years old or younger, ≥ 39 HR, ≥ 148 RBI, ≥ (.800) OPS

Here are the players in MLB that meet the numbers.

Player	Tm	From	Age	G	AB	R	H	2B	3B	HR	RBI	SB	BA	OBP	SLG	OPS
Mookie Betts	BOS	2014-16	21-23	270	1,108	191	323	71	13	39	148	40	0.292	0.344	0.485	0.828
Mike Trout	LAA	2011-13	19-21	336	1,271	258	399	72	17	62	196	86	0.314	0.404	0.544	0.948
David Wright	NYM	2004-06	21-23	383	1,420	236	434	99	7	67	258	43	0.306	0.375	0.527	0.902
Grady Sizemore	CLE	2004-06	21-23	363	1,433	260	409	96	24	54	181	46	0.285	0.359	0.499	0.858
Ken Griffey, Jr	SEA	1989-91	19-21	436	1,600	228	478	93	8	60	241	50	0.299	0.367	0.479	0.847
Barry Bonds	PIT	1986-88	21-23	407	1,502	268	388	90	17	65	165	85	0.258	0.343	0.471	0.814
Darryl Strawberry	NYM	1983-85	21-23	380	1,335	216	348	57	15	81	250	72	0.261	0.355	0.508	0.863
Orlando Cepeda	SFG	1958-60	20-22	450	1,777	261	549	109	11	76	297	53	0.309	0.347	0.511	0.858
Vada Pinson	CIN	1958-60	19-21	335	1,396	258	418	91	21	41	153	55	0.299	0.355	0.483	0.837