Jonathan Aceves

PosC

B/TR/R

Born1978-03-07

Age (2027)49

No MLB projection yet. Career stats below are historical.

Overview

AAALAST SEASON 2017

Year	Age	Lvl / Team	PA	AVG/OBP/SLG	HR	SB	wRC+	WAR	MLE AVG/OBP/SLG
2015	37	AAA/INTL2 orgs	311	.264/.351/.375	6	0	66	—	.226/.297/.319
2016	38	AAA/INTL2 orgs	369	.289/.400/.444	9	1	91	—	.271/.351/.380
2017	39	AAASaraperos de …	328	.279/.361/.467	13	1	65	—	.213/.272/.333

Contract

No contract data on file.

Career Stats + Projections

Real MLB stats plus park-adjusted projections — this season (so far / rest / full), then future seasons and career totals.

show model inputsbasis chips: RAW = as recorded · CTX = with park/league context · A+C = actual + context combined · MLE = level/park-neutral

Methodology▸ how these numbers are built

All seasons translated to park-neutral MLB-equivalent (MLE) and combined per year. 2027 = full-season projection (no games played yet). 2028+ via Advanced Marcel + aging curve. Catcher framing: only 2027 Statcast framing is modeled (Baseball Savant server-caches the leaderboard to the current season); prior-year framing is unmodeled — projections for established framers may run 1-3 WAR low.

Year	Age	Lvl	Team	MLB%	PA	AB	H	2B	3B	HR	BB	SO	HBP	SB	CS	AVG	OBP	SLG	OPS	ISO	BABIP	K%	BB%	wOBA	wRC+	BAT	RUN	FLD	POS	REP	WAR
▸ Career — actual stats, one row per stint (as recorded, no adjustments)
2005	27	AAA	Charlotte Knights	—	60	54	11	4	1	1	5	18	0	0	0	204	271	370	642	167	286	30	8	281	38	—	—	—	—	—	—
2005	27	AA	Birmingham Barons	—	254	217	58	14	1	7	26	47	7	0	1	267	364	438	802	171	311	19	10	354	86	—	—	—	—	—	—
2006	28	AA	Carolina Mudcats	—	282	252	60	22	0	6	21	63	5	0	1	238	309	397	706	159	292	22	7	312	57	—	—	—	—	—	—
2007	29	AAA	Saraperos de Saltillo	—	363	312	94	21	1	19	35	70	11	2	0	301	391	558	949	256	335	19	10	409	108	—	—	—	—	—	—
2008	30	AAA	Saraperos de Saltillo	—	176	159	42	6	0	8	14	35	1	1	0	264	328	453	780	189	293	20	8	342	63	—	—	—	—	—	—
2009	31	AAA	Saraperos de Saltillo	—	258	235	59	17	0	7	17	50	1	1	2	251	304	413	717	162	289	19	7	313	53	—	—	—	—	—	—
2010	32	AAA	Saraperos de Saltillo	—	282	253	62	9	0	8	24	58	1	0	1	245	313	375	688	130	287	21	9	306	39	—	—	—	—	—	—
2010	32	INTL	Tomateros de Culiacan	—	41	36	12	1	0	2	4	11	0	0	0	333	400	528	928	194	435	27	10	400	157	—	—	—	—	—	—
2011	33	AAA	Saraperos de Saltillo	—	330	290	84	24	1	12	32	70	3	2	3	290	366	503	870	214	340	21	10	377	76	—	—	—	—	—	—
2011	33	INTL	Tomateros de Culiacan	—	45	39	7	4	0	1	5	9	0	0	0	179	273	359	632	179	207	20	11	278	74	—	—	—	—	—	—
2013	35	AAA	Saraperos de Saltillo	—	266	236	58	11	0	11	26	48	1	0	0	246	323	432	755	186	263	18	10	333	49	—	—	—	—	—	—
2013	35	INTL	Mexico	—	196	168	41	5	0	2	15	40	3	0	1	244	317	310	627	65	305	20	8	276	73	—	—	—	—	—	—
2014	36	AAA	Saraperos de Saltillo	—	264	239	62	10	0	11	19	53	4	0	0	259	324	439	764	180	290	20	7	337	56	—	—	—	—	—	—
2014	36	INTL	Naranjeros de Hermosillo	—	86	70	12	4	0	1	10	20	2	0	0	171	293	271	564	100	212	23	12	256	59	—	—	—	—	—	—
2015	37	AAA	Saraperos de Saltillo	—	279	241	65	8	2	6	25	42	7	0	0	270	355	394	750	124	299	15	9	333	67	—	—	—	—	—	—
2015	37	INTL	Aguilas de Mexicali	—	32	28	6	0	0	0	4	6	0	0	1	214	312	214	527		273	19	12	257	60	—	—	—	—	—	—
2016	38	AAA	Saraperos de Saltillo	—	306	248	79	18	0	7	43	47	8	1	2	319	435	476	911	157	367	15	14	400	101	—	—	—	—	—	—
2016	38	INTL	Charros de Jalisco	—	63	56	9	2	0	2	5	10	0	0	0	161	230	304	533	143	159	16	8	234	45	—	—	—	—	—	—
2017	39	AAA	Saraperos de Saltillo	—	328	287	80	15	0	13	34	57	3	1	1	279	361	467	828	188	307	17	10	364	65	—	—	—	—	—	—
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
2005	27	AAA MLE	Charlotte Knights	—	60	56	10	3	1	1	3	22	0	0	0	179	220	321	542	143	255	37	5	225	38	—	—	—	—	—	—
2005	27	AA MLE	Birmingham Barons	—	254	226	54	13	1	6	17	57	7	0	1	239	312	385	697	146	284	22	7	296	86	—	—	—	—	—	—
2006	28	AA MLE	Carolina Mudcats	—	282	259	52	19	0	5	14	77	5	0	1	201	255	332	587	131	259	27	5	253	57	—	—	—	—	—	—
2007	29	AAA MLE	Saraperos de Saltillo	—	363	324	83	18	1	13	23	84	11	2	0	256	327	438	765	182	297	23	6	328	108	—	—	—	—	—	—
2008	30	AAA MLE	Saraperos de Saltillo	—	176	165	35	5	0	5	8	42	1	1	0	212	253	333	586	121	251	24	5	261	63	—	—	—	—	—	—
2009	31	AAA MLE	Saraperos de Saltillo	—	258	241	51	14	0	5	11	60	1	1	2	212	249	332	581	120	250	23	4	247	53	—	—	—	—	—	—
2010	32	AAA MLE	Saraperos de Saltillo	—	282	262	50	6	0	6	15	68	1	0	1	191	237	282	520	92	228	24	5	226	39	—	—	—	—	—	—
2011	33	AAA MLE	Saraperos de Saltillo	—	330	304	68	19	1	9	18	88	3	2	3	224	274	382	655	158	272	27	5	281	76	—	—	—	—	—	—
2013	35	AAA MLE	Saraperos de Saltillo	—	266	246	45	9	0	6	16	60	1	0	0	183	236	293	528	110	214	23	6	241	49	—	—	—	—	—	—
2014	36	AAA MLE	Saraperos de Saltillo	—	264	245	49	7	0	7	13	65	4	0	0	200	252	314	566	114	241	25	5	251	56	—	—	—	—	—	—
2015	37	AAA MLE	Saraperos de Saltillo	—	279	248	56	7	2	4	18	51	7	0	0	226	297	319	615	93	252	18	6	267	67	—	—	—	—	—	—
2016	38	AAA MLE	Saraperos de Saltillo	—	306	266	72	14	0	5	25	59	8	1	2	271	351	380	731	109	313	19	8	318	101	—	—	—	—	—	—
2017	39	AAA MLE	Saraperos de Saltillo	—	328	300	64	12	0	8	21	71	3	1	1	213	272	333	605	120	247	22	6	264	65	—	—	—	—	—	—
2005	27	AA MLE	2 teams	—	314	282	63	16	2	6	20	79	7	0	1	223	291	358	649	135	288	25	6	282	77	—	—	—	—	—	—
2005	27	AA RAW	2 teams	—	314	271	69	18	2	8	31	65	7	0	1	255	346	424	771	170	307	21	10	340	77	—	—	—	—	—	—
2006	28	AA MLE	Carolina Mudcats	—	282	259	52	19	0	5	14	77	5	0	1	201	255	332	587	131	263	27	5	253	57	—	—	—	—	—	—
2006	28	AA RAW	Carolina Mudcats	—	282	252	60	22	0	6	21	63	5	0	1	238	309	397	706	159	292	22	7	312	57	—	—	—	—	—	—
2007	29	AAA MLE	Saraperos de Saltillo	—	363	324	83	18	1	13	23	84	11	2	0	256	327	438	765	182	307	23	6	328	108	—	—	—	—	—	—
2007	29	AAA RAW	Saraperos de Saltillo	—	363	312	94	21	1	19	35	70	11	2	0	301	391	558	949	256	335	19	10	409	108	—	—	—	—	—	—
2008	30	AAA MLE	Saraperos de Saltillo	—	176	165	35	5	0	5	8	42	1	1	0	212	253	333	586	121	254	24	5	261	63	—	—	—	—	—	—
2008	30	AAA RAW	Saraperos de Saltillo	—	176	159	42	6	0	8	14	35	1	1	0	264	328	453	780	189	293	20	8	342	63	—	—	—	—	—	—
2009	31	AAA MLE	Saraperos de Saltillo	—	258	241	51	14	0	5	11	60	1	1	2	212	249	332	581	120	258	23	4	247	53	—	—	—	—	—	—
2009	31	AAA RAW	Saraperos de Saltillo	—	258	235	59	17	0	7	17	50	1	1	2	251	304	413	717	162	289	19	7	313	53	—	—	—	—	—	—
2010	32	AAA MLE	2 teams	—	323	300	56	7	0	6	17	78	1	0	1	187	233	270	503	83	230	24	5	226	39	—	—	—	—	—	—
2010	32	AAA RAW	2 teams	—	323	289	74	10	0	10	28	69	1	0	1	256	324	394	718	138	303	21	9	318	39	—	—	—	—	—	—
2011	33	AAA MLE	2 teams	—	375	345	77	21	1	10	21	100	3	2	3	223	274	377	651	154	280	27	6	281	76	—	—	—	—	—	—
2011	33	AAA RAW	2 teams	—	375	329	91	28	1	13	37	79	3	2	3	277	355	486	841	210	324	21	10	365	76	—	—	—	—	—	—
2013	35	AAA MLE	2 teams	—	462	417	80	16	0	11	28	103	4	0	1	192	249	309	559	118	225	22	6	241	49	—	—	—	—	—	—
2013	35	AAA RAW	2 teams	—	462	404	99	16	0	13	41	88	4	0	1	245	321	381	702	136	280	19	9	308	49	—	—	—	—	—	—
2014	36	AAA MLE	2 teams	—	350	321	67	10	0	10	17	87	6	0	0	209	262	333	595	125	250	25	5	251	56	—	—	—	—	—	—
2014	36	AAA RAW	2 teams	—	350	309	74	14	0	12	29	73	6	0	0	239	317	401	718	162	272	21	8	317	56	—	—	—	—	—	—
2015	37	AAA MLE	2 teams	—	311	278	62	8	2	4	20	57	7	0	1	223	292	309	601	86	262	18	6	267	67	—	—	—	—	—	—
2015	37	AAA RAW	2 teams	—	311	269	71	8	2	6	29	48	7	0	1	264	351	375	726	112	297	15	9	325	67	—	—	—	—	—	—
2016	38	AAA MLE	2 teams	—	369	322	85	16	0	6	30	72	8	1	2	264	342	370	711	106	321	20	8	318	101	—	—	—	—	—	—
2016	38	AAA RAW	2 teams	—	369	304	88	20	0	9	48	57	8	1	2	289	400	444	844	155	329	15	13	372	101	—	—	—	—	—	—
2017	39	AAA MLE	Saraperos de Saltillo	—	328	300	64	12	0	8	21	71	3	1	1	213	272	333	605	120	252	22	6	264	65	—	—	—	—	—	—
2017	39	AAA RAW	Saraperos de Saltillo	—	328	287	80	15	0	13	34	57	3	1	1	279	361	467	828	188	307	17	10	364	65	—	—	—	—	—	—
2005	27	AA MLE	2 teams	—	314	284	63	16	2	6	20	79	7	0	1	222	291	356	647	134	278	25	6	282	77	—	—	—	—	—	—
2006	28	AA MLE	Carolina Mudcats	—	282	261	52	19	0	5	14	77	5	0	1	199	255	330	585	130	259	27	5	253	57	—	—	—	—	—	—
2007	29	AAA MLE	Saraperos de Saltillo	—	363	326	83	18	1	13	23	84	11	2	0	255	327	436	762	181	297	23	6	328	108	—	—	—	—	—	—
2008	30	AAA MLE	Saraperos de Saltillo	—	176	165	35	5	0	5	8	42	1	1	0	212	253	333	586	121	251	24	5	261	63	—	—	—	—	—	—
2009	31	AAA MLE	Saraperos de Saltillo	—	258	244	51	14	0	5	11	60	1	1	2	209	249	328	577	119	250	23	4	247	53	—	—	—	—	—	—
2010	32	AAA MLE	2 teams	—	323	302	56	7	0	6	17	78	1	0	1	185	233	268	501	83	228	24	5	226	39	—	—	—	—	—	—
2011	33	AAA MLE	2 teams	—	375	348	77	21	1	10	21	100	3	2	3	221	274	374	647	152	272	27	6	281	76	—	—	—	—	—	—
2013	35	AAA MLE	2 teams	—	462	427	80	16	0	11	28	103	4	0	1	187	249	302	552	115	214	22	6	241	49	—	—	—	—	—	—
2014	36	AAA MLE	2 teams	—	350	324	67	10	0	10	17	87	6	0	0	207	262	330	592	123	241	25	5	251	56	—	—	—	—	—	—
2015	37	AAA MLE	2 teams	—	311	281	62	8	2	4	20	57	7	0	1	221	292	306	598	85	252	18	6	267	67	—	—	—	—	—	—
2016	38	AAA MLE	2 teams	—	369	328	85	16	0	6	30	72	8	1	2	259	342	363	704	104	313	20	8	318	101	—	—	—	—	—	—
2017	39	AAA MLE	Saraperos de Saltillo	—	328	301	64	12	0	8	21	71	3	1	1	213	272	332	604	120	247	22	6	264	65	—	—	—	—	—	—
▸ Career Totals
Career	—	MLE		—	3911	3554	775	162	6	89	230	910	57	8	13	218	276	342	619	124	266	23	6	269	68	-147	-4	+0	+70	+85	0.4
/ 162G	—	MLE		—	650	591	129	27	1	15	38	151	9	1	2	218	275	343	619	125	266	23	6	269	68	-24	-1	+0	+12	+14	0.1

How the minor-league lines were translated

One row per minor-league stint. Open a row to see each step: the raw rate, the park adjustment, the league/level factor, the age adjustment (hitters) and the resulting MLE rate. Factors are the same ones listed on the MLE Factors page.

2017 AAASaraperos de Saltillo · 328 PAwOBA .353 → .264 (−89)K% 17.4% → 21.7%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	17.38%	÷0.961	×1.200	—	—	21.70%
BB% (unintentional) /PA	9.76%	÷0.994	×0.690	—	×0.940	6.37%
HBP% /PA	0.91%	—	×0.940	—	×0.940	0.81%
Singles /BIP	22.61%	÷1.067	×0.930	×1.008	×0.940	18.67%
Doubles /BIP	6.52%	÷0.972	×0.830	×1.008	×0.940	5.28%
Triples /BIP	0.00%	÷1.150	×0.920	×1.008	×0.940	0.00%
Home runs /BIP	5.65%	÷1.093	×0.700	—	×0.940	3.40%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 118, 1B 113, 2B 94, 3B 130, K 92, BB 99 — applied at half strength. Age: age 39 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (11.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.008.

Result: wOBA .353 → .264; ISO .188 → .126; BABIP .307 → .247. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2016 AAASaraperos de Saltillo · 306 PAwOBA .390 → .318 (−72)K% 15.4% → 19.4%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	15.36%	÷0.948	×1.200	—	—	19.44%
BB% (unintentional) /PA	13.07%	÷1.047	×0.690	—	×0.940	8.10%
HBP% /PA	2.61%	—	×0.940	—	×0.940	2.31%
Singles /BIP	26.87%	÷1.007	×0.930	×1.050	×0.940	24.49%
Doubles /BIP	8.96%	÷1.154	×0.830	×1.050	×0.940	6.36%
Triples /BIP	0.00%	÷1.059	×0.920	×1.050	×0.940	0.00%
Home runs /BIP	3.48%	÷0.966	×0.700	—	×0.940	2.37%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 93, 1B 101, 2B 131, 3B 112, K 90, BB 109 — applied at half strength. Age: age 38 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (10.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.050.

Result: wOBA .390 → .318; ISO .157 → .117; BABIP .367 → .313. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2015 AAASaraperos de Saltillo · 279 PAwOBA .329 → .267 (−62)K% 15.1% → 18.3%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	15.05%	÷0.989	×1.200	—	—	18.27%
BB% (unintentional) /PA	8.96%	÷0.903	×0.690	—	×0.940	6.44%
HBP% /PA	2.51%	—	×0.940	—	×0.940	2.22%
Singles /BIP	24.62%	÷1.024	×0.930	×0.999	×0.940	21.00%
Doubles /BIP	4.02%	÷0.948	×0.830	×0.999	×0.940	3.30%
Triples /BIP	1.01%	÷0.900	×0.920	×0.999	×0.940	0.96%
Home runs /BIP	3.02%	÷1.099	×0.700	—	×0.940	1.81%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 120, 1B 105, 2B 90, 3B 80, K 98, BB 81 — applied at half strength. Age: age 37 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (9.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.999.

Result: wOBA .329 → .267; ISO .124 → .090; BABIP .299 → .252. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2014 AAASaraperos de Saltillo · 264 PAwOBA .329 → .251 (−78)K% 20.1% → 24.8%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	20.08%	÷0.971	×1.200	—	—	24.80%
BB% (unintentional) /PA	7.20%	÷0.975	×0.690	—	×0.940	4.79%
HBP% /PA	1.52%	—	×0.940	—	×0.940	1.34%
Singles /BIP	22.04%	÷1.036	×0.930	×1.034	×0.940	19.23%
Doubles /BIP	5.38%	÷1.076	×0.830	×1.034	×0.940	4.03%
Triples /BIP	0.00%	÷0.933	×0.920	×1.034	×0.940	0.00%
Home runs /BIP	5.91%	÷0.965	×0.700	—	×0.940	4.03%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 93, 1B 107, 2B 115, 3B 87, K 94, BB 95 — applied at half strength. Age: age 36 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (8.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.034.

Result: wOBA .329 → .251; ISO .180 → .123; BABIP .290 → .241. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2013 AAASaraperos de Saltillo · 266 PAwOBA .322 → .241 (−81)K% 18.0% → 22.4%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	18.05%	÷0.967	×1.200	—	—	22.40%
BB% (unintentional) /PA	8.65%	÷0.937	×0.690	—	×0.940	5.98%
HBP% /PA	0.38%	—	×0.940	—	×0.940	0.33%
Singles /BIP	19.15%	÷1.057	×0.930	×1.014	×0.940	16.06%
Doubles /BIP	5.85%	÷0.956	×0.830	×1.014	×0.940	4.84%
Triples /BIP	0.00%	÷1.150	×0.920	×1.014	×0.940	0.00%
Home runs /BIP	5.85%	÷1.129	×0.700	—	×0.940	3.41%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 126, 1B 111, 2B 91, 3B 130, K 93, BB 87 — applied at half strength. Age: age 35 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (7.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.014.

Result: wOBA .322 → .241; ISO .186 → .121; BABIP .263 → .214. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2011 AAASaraperos de Saltillo · 330 PAwOBA .370 → .281 (−89)K% 21.2% → 26.6%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	21.21%	÷0.956	×1.200	—	—	26.62%
BB% (unintentional) /PA	9.09%	÷1.079	×0.690	—	×0.942	5.47%
HBP% /PA	0.91%	—	×0.940	—	×0.942	0.80%
Singles /BIP	21.36%	÷1.049	×0.930	×0.998	×0.942	17.80%
Doubles /BIP	10.91%	÷1.008	×0.830	×0.998	×0.942	8.44%
Triples /BIP	0.45%	÷1.150	×0.920	×0.998	×0.942	0.34%
Home runs /BIP	5.45%	÷0.920	×0.700	—	×0.942	3.91%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 84, 1B 110, 2B 102, 3B 130, K 91, BB 116 — applied at half strength. Age: age 33 vs a level average of 27.2 → −5.8% on BB/HBP/hit rates (5.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.998.

Result: wOBA .370 → .281; ISO .214 → .159; BABIP .340 → .272. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2010 AAASaraperos de Saltillo · 282 PAwOBA .299 → .226 (−74)K% 20.6% → 24.0%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	20.57%	÷1.030	×1.200	—	—	23.97%
BB% (unintentional) /PA	8.51%	÷1.057	×0.690	—	×0.952	5.29%
HBP% /PA	0.35%	—	×0.940	—	×0.952	0.32%
Singles /BIP	23.08%	÷1.073	×0.930	×0.998	×0.952	18.99%
Doubles /BIP	4.62%	÷1.118	×0.830	×0.998	×0.952	3.25%
Triples /BIP	0.00%	÷1.150	×0.920	×0.998	×0.952	0.00%
Home runs /BIP	4.10%	÷0.963	×0.700	—	×0.952	2.84%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 93, 1B 115, 2B 124, 3B 130, K 106, BB 111 — applied at half strength. Age: age 32 vs a level average of 27.2 → −4.8% on BB/HBP/hit rates (4.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.998.

Result: wOBA .299 → .226; ISO .130 → .092; BABIP .287 → .228. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2009 AAASaraperos de Saltillo · 258 PAwOBA .305 → .247 (−58)K% 19.4% → 23.3%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	19.38%	÷1.000	×1.200	—	—	23.26%
BB% (unintentional) /PA	6.20%	÷1.000	×0.690	—	×0.962	4.12%
HBP% /PA	0.39%	—	×0.940	—	×0.962	0.35%
Singles /BIP	18.92%	÷1.000	×0.930	×1.014	×0.962	17.17%
Doubles /BIP	9.19%	÷1.000	×0.830	×1.014	×0.962	7.44%
Triples /BIP	0.00%	÷1.000	×0.920	×1.014	×0.962	0.00%
Home runs /BIP	3.78%	÷1.000	×0.700	—	×0.962	2.55%

Factors used: level-wide AAA factors (no league-specific row for this league/era). Park (home-season share, regressed): no park row on file (treated as neutral) — applied at half strength. Age: age 31 vs a level average of 27.2 → −3.8% on BB/HBP/hit rates (3.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.014.

Result: wOBA .305 → .247; ISO .162 → .120; BABIP .289 → .250. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

Not traceable per stint: some stints lack the counting stats the component translation needs. Level-wide factors that apply instead — .