Jaff Decker

PosRF

B/TL/L

Born1990-02-23

Age (2027)37

No MLB projection yet. Career stats below are historical.

Overview

AAALAST SEASON 2018

Year	Age	Lvl / Team	PA	AVG/OBP/SLG	HR	SB	wRC+	WAR	MLE AVG/OBP/SLG
2016	26	AAATB	417	.255/.369/.421	12	18	78	—	.215/.291/.336
2016	26	MLBTB	57	.154/.214/.173	0	1	9	-1.0
2017	27	AAAMIL	398	.274/.346/.368	6	15	57	—	.223/.274/.297
2017	27	MLBOakland Athle…	62	.200/.322/.260	0	1	66	-0.0
2018	28	AAASyracuse Chie…	163	.244/.370/.385	3	2	68	—	.196/.290/.301
2019	29	No MLB games played
2020	30	No MLB games played
2021	31	No MLB games played
2022	32	No MLB games played
2023	33	No MLB games played
2024	34	No MLB games played
2025	35	No MLB games played
2026	36	No MLB games played

Last 3 seasons WAR -1.0

Contract

No contract data on file.

Skills · percentileStatcast 2015-2017

xwOBA25

Speed22

Barrel%10

Avg EV10

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.

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)
2008	18	ROK	AZL Padres	—	216	159	56	11	2	5	55	36	2	9	1	352	523	541	1.064	189	432	17	25	472	125	—	—	—	—	—	—
2009	19	A	Fort Wayne TinCaps	—	455	358	107	25	2	16	85	92	9	10	6	299	445	514	959	215	360	20	19	423	120	—	—	—	—	—	—
2010	20	A+	Lake Elsinore Storm	—	348	290	76	14	2	17	47	80	7	5	4	262	378	500	878	238	299	23	14	383	113	—	—	—	—	—	—
2011	21	AA	San Antonio Missions	—	613	496	117	29	2	19	103	145	8	15	5	236	376	417	793	181	291	24	17	356	84	—	—	—	—	—	—
2011	21	INTL	Peoria Javelinas	—	108	90	26	5	1	2	17	20	1	1	0	289	407	433	841	144	353	19	16	380	144	—	—	—	—	—	—
2012	22	AA	San Antonio Missions	—	190	147	27	3	2	3	40	37	2	6	2	184	365	293	658	109	224	19	21	315	58	—	—	—	—	—	—
2012	22	ROK	AZL Padres	—	33	27	8	1	2	1	4	3	1	0	0	296	406	593	999	296	292	9	12	416	99	—	—	—	—	—	—
2013	23	MLB	San Diego Padres	—	31	26	4	0	0	1	3	4	0	0	1	154	241	269	511	115	136	13	10	222	36	-2	-0	-1	-5	+1	-0.8
2013	23	AAA	Tucson Padres	—	415	350	100	23	1	10	55	94	1	4	6	286	384	443	827	157	361	23	13	363	92	—	—	—	—	—	—
2014	24	AAA	Indianapolis Indians	—	409	350	90	27	1	6	51	73	3	7	6	257	356	391	748	134	308	18	12	336	84	—	—	—	—	—	—
2015	25	MLB	Pittsburgh Pirates	—	36	28	6	1	1	0	7	9	0	0	0	214	371	321	693	107	316	25	19	317	100	-0	+0	-3	-3	+1	-0.6
2015	25	AAA	Indianapolis Indians	—	265	218	58	10	1	3	36	38	3	18	3	266	377	362	740	96	302	14	14	331	82	—	—	—	—	—	—
2016	26	MLB	Tampa Bay Rays	—	57	52	8	1	0	0	4	14	0	1	0	154	214	173	387	19	205	25	7	183	9	-6	+0	+0	-5	+1	-1.0
2016	26	AAA	Durham Bulls	—	417	349	89	18	2	12	59	79	4	18	7	255	369	421	790	166	295	19	14	353	78	—	—	—	—	—	—
2017	27	MLB	Oakland Athletics	—	62	50	10	1	1	0	8	17	1	1	1	200	322	260	582	60	303	27	13	265	66	-3	-0	-0	+2	+1	-0.0
2017	27	AAA	Nashville Sounds	—	398	351	96	13	1	6	38	93	1	15	5	274	346	368	714	94	350	23	10	319	57	—	—	—	—	—	—
2018	28	AAA	Syracuse Chiefs	—	163	135	33	10	0	3	25	49	2	2	2	244	370	385	756	141	357	30	15	344	68	—	—	—	—	—	—
▸ Career Totals (raw MLB only — historical actual)
MLB Career	—			—	186	156	28	3	2	1	22	44	1	2	2	179	285	244	529	64	239	24	12	243	50	-11	-0	-4	-11	+4	-2.3
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
2008	18	ROK MLE	AZL Padres	—	216	179	49	9	2	4	35	52	2	9	1	274	398	413	812	140	355	24	16	353	125	—	—	—	—	—	—
2009	19	A MLE	Fort Wayne TinCaps	—	455	385	96	21	2	13	58	125	9	10	6	249	361	416	776	166	328	27	13	345	120	—	—	—	—	—	—
2010	20	A+ MLE	Lake Elsinore Storm	—	348	305	71	12	2	19	32	109	7	5	4	233	320	472	792	239	275	31	9	335	113	—	—	—	—	—	—
2011	21	AA MLE	San Antonio Missions	—	613	536	107	25	2	18	63	186	8	15	5	200	293	354	648	155	262	30	10	292	84	—	—	—	—	—	—
2012	22	AA MLE	San Antonio Missions	—	190	161	26	3	2	3	26	45	2	6	2	161	286	261	547	99	201	24	14	254	58	—	—	—	—	—	—
2012	22	ROK MLE	AZL Padres	—	33	29	6	1	1	1	2	4	1	0	0	207	281	414	695	207	219	12	6	315	99	—	—	—	—	—	—
2013	23	MLB MLE	San Diego Padres	—	31	26	4	0	0	1	3	4	0	0	1	154	241	269	511	115	136	13	10	221	36	-2	-0	-1	-5	+1	-0.8
2013	23	AAA MLE	Tucson Padres	—	415	366	91	20	1	9	39	130	1	4	6	249	323	383	705	134	342	31	9	304	92	—	—	—	—	—	—
2014	24	AAA MLE	Indianapolis Indians	—	409	363	83	25	1	6	38	90	3	7	6	229	307	353	660	124	282	22	9	292	84	—	—	—	—	—	—
2015	25	MLB MLE	Pittsburgh Pirates	—	36	28	6	1	1	0	7	9	0	0	0	214	371	321	693	107	316	25	19	316	100	-0	+0	-3	-3	+1	-0.6
2015	25	AAA MLE	Indianapolis Indians	—	265	231	56	9	1	3	23	47	3	18	3	242	319	329	648	87	273	18	9	290	82	—	—	—	—	—	—
2016	26	MLB MLE	Tampa Bay Rays	—	57	52	8	1	0	0	4	14	0	1	0	154	214	173	387	19	205	25	7	181	9	-6	+0	+0	-5	+1	-1.0
2016	26	AAA MLE	Durham Bulls	—	417	372	80	14	2	9	36	95	4	18	7	215	291	336	627	121	262	23	9	284	78	—	—	—	—	—	—
2017	27	MLB MLE	Oakland Athletics	—	62	50	10	1	1	0	8	17	1	1	1	200	322	260	582	60	303	27	13	266	66	-3	-0	-0	+2	+1	-0.0
2017	27	AAA MLE	Nashville Sounds	—	398	364	81	10	1	5	25	120	1	15	5	223	274	297	571	74	299	30	6	253	57	—	—	—	—	—	—
2018	28	AAA MLE	Syracuse Chiefs	—	163	143	28	9	0	2	17	56	2	2	2	196	290	301	591	105	297	34	10	268	68	—	—	—	—	—	—
2008	18	ROK MLE	AZL Padres	—	216	179	49	9	2	4	35	52	2	9	1	274	398	413	812	140	366	24	16	353	125	—	—	—	—	—	—
2008	18	ROK RAW	AZL Padres	—	216	159	56	11	2	5	55	36	2	9	1	352	523	541	1.064	189	432	17	25	472	125	—	—	—	—	—	—
2009	19	A MLE	Fort Wayne TinCaps	—	455	385	96	21	2	13	58	125	9	10	6	249	361	416	776	166	332	27	13	345	120	—	—	—	—	—	—
2009	19	A RAW	Fort Wayne TinCaps	—	455	358	107	25	2	16	85	92	9	10	6	299	445	514	959	215	360	20	19	423	120	—	—	—	—	—	—
2010	20	A+ MLE	Lake Elsinore Storm	—	348	305	71	12	2	19	32	109	7	5	4	233	320	472	792	239	287	31	9	335	113	—	—	—	—	—	—
2010	20	A+ RAW	Lake Elsinore Storm	—	348	290	76	14	2	17	47	80	7	5	4	262	378	500	878	238	299	23	14	383	113	—	—	—	—	—	—
2011	21	AA MLE	2 teams	—	721	632	127	30	3	21	74	219	9	16	5	201	294	358	651	157	267	30	10	292	84	—	—	—	—	—	—
2011	21	AA RAW	2 teams	—	721	586	143	34	3	21	120	165	9	16	5	244	380	420	800	176	301	23	17	360	84	—	—	—	—	—	—
2012	22	AA MLE	2 teams	—	223	190	34	4	4	4	28	49	3	6	2	179	294	305	599	126	217	22	13	263	64	—	—	—	—	—	—
2012	22	AA RAW	2 teams	—	223	174	35	4	4	4	44	40	3	6	2	201	371	339	710	138	237	18	20	330	64	—	—	—	—	—	—
2013	23	AAA MLE	2 teams	—	446	392	95	20	1	10	42	134	1	4	7	242	317	375	692	133	337	30	9	298	88	—	—	—	—	—	—
2013	23	AAA RAW	2 teams	—	446	376	104	23	1	11	58	98	1	4	7	277	375	431	806	154	343	22	13	354	88	—	—	—	—	—	—
2014	24	AAA MLE	Indianapolis Indians	—	409	363	83	25	1	6	38	90	3	7	6	229	307	353	660	124	286	22	9	292	84	—	—	—	—	—	—
2014	24	AAA RAW	Indianapolis Indians	—	409	350	90	27	1	6	51	73	3	7	6	257	356	391	748	134	308	18	12	336	84	—	—	—	—	—	—
2015	25	AAA MLE	2 teams	—	301	259	62	10	2	3	30	56	3	18	3	239	325	328	654	89	288	19	10	293	85	—	—	—	—	—	—
2015	25	AAA RAW	2 teams	—	301	246	64	11	2	3	43	47	3	18	3	260	377	358	734	98	303	16	14	330	85	—	—	—	—	—	—
2016	26	AAA MLE	2 teams	—	474	424	88	15	2	9	40	109	4	19	7	208	282	316	598	108	255	23	8	272	70	—	—	—	—	—	—
2016	26	AAA RAW	2 teams	—	474	401	97	19	2	12	63	93	4	19	7	242	350	389	739	147	283	20	13	332	70	—	—	—	—	—	—
2017	27	AAA MLE	2 teams	—	460	414	91	11	2	5	33	137	2	16	6	220	281	292	573	72	310	30	7	255	59	—	—	—	—	—	—
2017	27	AAA RAW	2 teams	—	460	401	106	14	2	6	46	110	2	16	6	264	343	354	697	90	345	24	10	311	59	—	—	—	—	—	—
2018	28	AAA MLE	Syracuse Chiefs	—	163	143	28	9	0	2	17	56	2	2	2	196	290	301	591	105	302	34	10	268	68	—	—	—	—	—	—
2018	28	AAA RAW	Syracuse Chiefs	—	163	135	33	10	0	3	25	49	2	2	2	244	370	385	756	141	357	30	15	344	68	—	—	—	—	—	—
2008	18	ROK MLE	AZL Padres	—	216	177	49	9	2	4	35	52	2	9	1	277	398	418	816	141	355	24	16	353	125	—	—	—	—	—	—
2009	19	A MLE	Fort Wayne TinCaps	—	455	385	96	21	2	13	58	125	9	10	6	249	361	416	776	166	328	27	13	345	120	—	—	—	—	—	—
2010	20	A+ MLE	Lake Elsinore Storm	—	348	306	71	12	2	19	32	109	7	5	4	232	320	471	790	239	275	31	9	335	113	—	—	—	—	—	—
2011	21	AA MLE	2 teams	—	721	632	127	30	3	21	74	219	9	16	5	201	294	358	651	157	262	30	10	292	84	—	—	—	—	—	—
2012	22	AA MLE	2 teams	—	223	190	34	4	4	4	28	49	3	6	2	179	294	305	599	126	204	22	13	263	64	—	—	—	—	—	—
2013	23	AAA MLE	2 teams	—	446	400	95	20	1	10	42	134	1	4	7	237	317	367	685	130	328	30	9	298	88	—	—	—	—	—	—
2014	24	AAA MLE	Indianapolis Indians	—	409	365	83	25	1	6	38	90	3	7	6	227	307	351	658	123	282	22	9	292	84	—	—	—	—	—	—
2015	25	AAA MLE	2 teams	—	301	265	62	10	2	3	30	56	3	18	3	234	325	321	646	87	278	19	10	293	85	—	—	—	—	—	—
2016	26	AAA MLE	2 teams	—	474	427	88	15	2	9	40	109	4	19	7	206	282	314	596	108	255	23	8	272	70	—	—	—	—	—	—
2017	27	AAA MLE	2 teams	—	460	422	91	11	2	5	33	137	2	16	6	216	281	287	567	71	300	30	7	255	59	—	—	—	—	—	—
2018	28	AAA MLE	Syracuse Chiefs	—	163	143	28	9	0	2	17	56	2	2	2	196	290	301	591	105	297	34	10	268	68	—	—	—	—	—	—
▸ Career Totals
▸ Career totals — MLB only (actual + projected)
Career	—	A+C		—	186	156	28	3	2	1	22	44	1	2	2	179	285	244	529	64	239	24	12	243	87	-11	-0	-4	-11	+4	-2.3
/ 162G	—	A+C		—	650	545	97	10	7	3	77	154	3	7	7	178	283	239	521	61	238	24	12	243	87	-38	-1	-15	-40	+14	-8.2
Career	—	MLE		—	4216	3686	824	166	21	96	427	1136	45	112	49	224	312	358	670	135	293	27	10	296	87	-11	-0	-4	-11	+4	-2.3
/ 162G	—	MLE		—	650	568	127	26	3	15	66	175	7	17	8	224	312	359	671	136	292	27	10	296	87	-38	-1	-15	-40	+14	-8.2

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.

2018 AAASyracuse Chiefs · 163 PAwOBA .336 → .268 (−68)K% 30.1% → 34.5%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	30.06%	÷1.044	×1.200	—	—	34.55%
BB% (unintentional) /PA	14.72%	÷0.956	×0.690	—	×0.992	10.54%
HBP% /PA	1.23%	—	×0.940	—	×0.992	1.14%
Singles /BIP	23.26%	÷1.044	×0.930	×0.950	×0.992	19.53%
Doubles /BIP	11.63%	÷0.933	×0.830	×0.950	×0.992	9.75%
Triples /BIP	0.00%	÷0.900	×0.970	×0.950	×0.992	0.00%
Home runs /BIP	3.49%	÷1.205	×0.840	—	×0.992	2.41%

Factors used: league row IL. Park (home-season share, regressed): HR 141, 1B 109, 2B 87, 3B 80, K 109, BB 91 — applied at half strength. Age: age 28 vs a level average of 27.2 → −0.8% on BB/HBP/hit rates (0.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .336 → .268; ISO .141 → .110; BABIP .357 → .297. 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).

2017 AAANashville Sounds · 398 PAwOBA .313 → .253 (−59)K% 23.4% → 30.1%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	23.37%	÷1.003	×1.290	—	—	30.06%
BB% (unintentional) /PA	9.05%	÷1.029	×0.710	—	×1.003	6.26%
HBP% /PA	0.25%	—	×0.980	—	×1.003	0.25%
Singles /BIP	29.46%	÷0.984	×0.900	×0.953	×1.003	25.74%
Doubles /BIP	5.04%	÷1.021	×0.810	×0.953	×1.003	3.82%
Triples /BIP	0.39%	÷0.900	×0.810	×0.953	×1.003	0.33%
Home runs /BIP	2.33%	÷0.868	×0.780	—	×1.003	2.10%

Factors used: league row PCL. Park (home-season share, regressed): HR 74, 1B 97, 2B 104, 3B 80, K 101, BB 106 — applied at half strength. Age: age 27 vs a level average of 27.2 → +0.3% on BB/HBP/hit rates (0.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.953.

Result: wOBA .313 → .253; ISO .094 → .078; BABIP .350 → .299. 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 AAADurham Bulls · 417 PAwOBA .344 → .284 (−60)K% 18.9% → 22.9%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	18.94%	÷0.994	×1.200	—	—	22.88%
BB% (unintentional) /PA	13.43%	÷1.082	×0.690	—	×1.018	8.72%
HBP% /PA	0.96%	—	×0.940	—	×1.018	0.92%
Singles /BIP	21.11%	÷1.010	×0.930	×0.997	×1.018	19.72%
Doubles /BIP	6.67%	÷1.093	×0.830	×0.997	×1.018	5.14%
Triples /BIP	0.74%	÷0.900	×0.970	×0.997	×1.018	0.81%
Home runs /BIP	4.44%	÷1.167	×0.840	—	×1.018	3.26%

Factors used: league row IL. Park (home-season share, regressed): HR 133, 1B 102, 2B 119, 3B 80, K 99, BB 116 — applied at half strength. Age: age 26 vs a level average of 27.2 → +1.8% on BB/HBP/hit rates (1.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.997.

Result: wOBA .344 → .284; ISO .166 → .133; BABIP .295 → .262. 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 AAAIndianapolis Indians · 265 PAwOBA .327 → .290 (−37)K% 14.3% → 17.6%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	14.34%	÷0.977	×1.200	—	—	17.61%
BB% (unintentional) /PA	12.83%	÷1.077	×0.690	—	×1.033	8.49%
HBP% /PA	1.13%	—	×0.940	—	×1.033	1.10%
Singles /BIP	24.44%	÷1.044	×0.930	×0.999	×1.033	22.48%
Doubles /BIP	5.56%	÷1.050	×0.830	×0.999	×1.033	4.53%
Triples /BIP	0.56%	÷1.041	×0.970	×0.999	×1.033	0.53%
Home runs /BIP	1.67%	÷0.847	×0.840	—	×1.033	1.71%

Factors used: league row IL. Park (home-season share, regressed): HR 69, 1B 109, 2B 110, 3B 108, K 95, BB 115 — applied at half strength. Age: age 25 vs a level average of 27.2 → +3.3% on BB/HBP/hit rates (2.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.999.

Result: wOBA .327 → .290; ISO .096 → .095; BABIP .302 → .273. 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 AAAIndianapolis Indians · 409 PAwOBA .327 → .292 (−35)K% 17.8% → 22.1%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	17.85%	÷0.968	×1.200	—	—	22.12%
BB% (unintentional) /PA	11.98%	÷0.944	×0.690	—	×1.048	9.18%
HBP% /PA	0.73%	—	×0.940	—	×1.048	0.72%
Singles /BIP	20.22%	÷1.068	×0.930	×0.997	×1.048	18.39%
Doubles /BIP	9.75%	÷0.932	×0.830	×0.997	×1.048	9.07%
Triples /BIP	0.36%	÷1.150	×0.970	×0.997	×1.048	0.32%
Home runs /BIP	2.17%	÷0.854	×0.840	—	×1.048	2.23%

Factors used: league row IL. Park (home-season share, regressed): HR 71, 1B 114, 2B 86, 3B 130, K 94, BB 89 — applied at half strength. Age: age 24 vs a level average of 27.2 → +4.8% on BB/HBP/hit rates (3.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.997.

Result: wOBA .327 → .292; ISO .134 → .130; BABIP .308 → .282. 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 AAATucson Padres · 415 PAwOBA .356 → .304 (−52)K% 22.7% → 31.3%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	22.65%	÷0.933	×1.290	—	—	31.32%
BB% (unintentional) /PA	13.01%	÷1.045	×0.710	—	×1.050	9.28%
HBP% /PA	0.24%	—	×0.980	—	×1.050	0.25%
Singles /BIP	25.78%	÷1.023	×0.900	×1.043	×1.050	24.83%
Doubles /BIP	8.98%	÷0.963	×0.810	×1.043	×1.050	8.28%
Triples /BIP	0.39%	÷1.150	×0.810	×1.043	×1.050	0.30%
Home runs /BIP	3.91%	÷0.901	×0.780	—	×1.050	3.55%

Factors used: league row PCL. Park (home-season share, regressed): HR 80, 1B 105, 2B 93, 3B 130, K 87, BB 109 — applied at half strength. Age: age 23 vs a level average of 27.2 → +5.0% on BB/HBP/hit rates (4.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.043.

Result: wOBA .356 → .304; ISO .157 → .137; BABIP .361 → .342. 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).

2012 AASan Antonio Missions · 190 PAwOBA .305 → .254 (−51)K% 19.5% → 23.6%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	19.47%	÷1.006	×1.220	—	—	23.61%
BB% (unintentional) /PA	20.00%	÷1.067	×0.700	—	×1.042	13.67%
HBP% /PA	1.05%	—	×0.870	—	×1.042	0.95%
Singles /BIP	17.27%	÷1.018	×0.920	×0.950	×1.042	15.45%
Doubles /BIP	2.73%	÷0.946	×0.840	×0.950	×1.042	2.40%
Triples /BIP	1.82%	÷0.968	×0.940	×0.950	×1.042	1.75%
Home runs /BIP	2.73%	÷0.919	×0.800	—	×1.042	2.47%

Factors used: league row TL. Park (home-season share, regressed): HR 84, 1B 104, 2B 89, 3B 94, K 101, BB 113 — applied at half strength. Age: age 22 vs a level average of 24.8 → +4.2% on BB/HBP/hit rates (2.8 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .305 → .254; ISO .109 → .106; BABIP .224 → .201. 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).

2012 ROKAZL Padres · 33 PAwOBA .418 → .315 (−104)K% 9.1% → 13.1%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	9.09%	÷1.000	×1.440	—	—	13.09%
BB% (unintentional) /PA	12.12%	÷1.000	×0.620	—	×0.975	7.33%
HBP% /PA	3.03%	—	×0.720	—	×0.975	2.13%
Singles /BIP	16.67%	÷1.000	×0.820	—	×0.975	13.32%
Doubles /BIP	4.17%	÷1.000	×0.720	—	×0.975	2.92%
Triples /BIP	8.33%	÷1.000	×0.720	—	×0.975	5.85%
Home runs /BIP	4.17%	÷1.000	×0.780	—	×0.975	3.17%

Factors used: level-wide ROK 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 22 vs a level average of 19.5 → −2.5% on BB/HBP/hit rates (2.5 yr older than average).

Result: wOBA .418 → .315; ISO .296 → .228; BABIP .292 → .219. 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).