Stephen Piscotty

PosRF

B/TR/R

Born1991-01-14

Age (2027)36

No MLB projection yet. Career stats below are historical.

Overview

AAALAST SEASON 2024

Year	Age	Lvl / Team	PA	AVG/OBP/SLG	HR	SB	wRC+	WAR	MLE AVG/OBP/SLG
2022	31	AAACIN	119	.275/.336/.450	5	0	54	—	.214/.261/.321
2022	31	MLBOakland Athle…	139	.190/.255/.341	5	2	67	-0.7
2023	32	AAACWS	206	.232/.333/.390	6	0	53	—	.188/.260/.296
2024	33	AAAOAK	118	.176/.246/.241	1	0	6	—	.153/.203/.207
2025	34	No MLB games played
2026	35	No MLB games played

Last 3 seasons WAR -0.7

Contract

No contract data on file.

Skills · percentileStatcast 2020-2022

Barrel%43

Avg EV35

xwOBA32

Speed10

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)
2012	21	A	Quad Cities River Bandits	—	237	210	62	18	1	4	18	25	9	3	0	295	376	448	823	152	320	11	8	369	103	—	—	—	—	—	—
2013	22	AA	Springfield Cardinals	—	207	184	55	9	0	6	19	19	1	7	3	299	368	446	813	147	304	9	9	359	99	—	—	—	—	—	—
2013	22	A+	Palm Beach Cardinals	—	264	243	71	14	2	9	18	27	3	4	5	292	348	477	826	185	300	10	7	365	95	—	—	—	—	—	—
2013	22	INTL	Salt River Rafters	—	100	89	33	3	3	1	9	14	1	7	2	371	434	506	940	135	427	14	9	413	166	—	—	—	—	—	—
2014	23	AAA	Memphis Redbirds	—	556	500	144	32	0	9	43	61	10	11	5	288	356	406	762	118	312	11	8	342	86	—	—	—	—	—	—
2015	24	MLB	St. Louis Cardinals	—	256	233	71	15	4	7	20	56	1	2	1	305	362	494	856	189	372	22	8	374	137	+11	+0	-4	-7	+6	0.7
2015	24	AAA	Memphis Redbirds	—	372	320	87	28	2	11	46	62	3	5	6	272	369	475	844	203	304	17	12	371	86	—	—	—	—	—	—
2016	25	MLB	St. Louis Cardinals	—	649	582	159	35	3	22	51	133	12	7	5	273	344	457	801	184	319	20	8	354	128	+22	-1	-3	-7	+14	2.6
2017	26	MLB	St. Louis Cardinals	—	401	341	80	16	1	9	52	87	5	3	6	235	344	367	711	132	286	22	13	323	105	+2	-2	-0	-5	+9	0.4
2017	26	AAA	Memphis Redbirds	—	38	32	10	3	0	4	6	7	0	0	0	312	421	781	1.202	469	286	18	16	502	149	—	—	—	—	—	—
2017	26	A	Peoria Chiefs	—	15	15	3	2	0	0	0	3	0	1	0	200	200	333	533	133	250	20	0	232	1	—	—	—	—	—	—
2018	27	MLB	Oakland Athletics	—	605	546	146	41	0	27	42	114	12	2	0	267	333	491	824	223	290	19	7	360	134	+25	+0	-5	-6	+13	2.7
2019	28	MLB	Oakland Athletics	—	393	357	89	17	1	13	29	84	3	2	0	249	311	412	723	162	289	21	7	319	106	+3	+0	-2	-4	+9	0.5
2019	28	AAA	Las Vegas Aviators	—	25	23	7	0	0	1	2	4	0	0	0	304	360	435	795	130	333	16	8	356	70	—	—	—	—	—	—
2020	29	MLB	Oakland Athletics	—	171	159	36	6	0	5	9	53	1	4	0	226	272	358	631	132	304	31	5	279	79	-4	+1	-3	-2	+4	-0.5
2021	30	MLB	Oakland Athletics	—	188	173	38	8	0	5	13	48	2	1	0	220	282	353	635	133	275	26	7	286	83	-4	+0	-4	-2	+4	-0.5
2022	31	MLB	Oakland Athletics	—	139	126	24	4	0	5	9	48	2	2	0	190	255	341	597	151	253	35	6	265	67	-5	+0	-2	-3	+3	-0.7
2022	31	AAA	Louisville Bats	—	119	109	30	4	0	5	8	27	2	0	0	275	336	450	786	174	325	23	7	350	54	—	—	—	—	—	—
2023	32	AAA	Charlotte Knights	—	206	177	41	10	0	6	24	38	3	0	0	232	333	390	723	158	259	18	12	325	53	—	—	—	—	—	—
2024	33	AAA	Las Vegas Aviators	—	118	108	19	4	0	1	9	34	1	0	0	176	246	241	487	65	247	29	8	228	6	—	—	—	—	—	—
▸ Career Totals (raw MLB only — historical actual)
MLB Career	—			—	2802	2517	643	142	9	93	225	623	38	23	12	255	326	430	756	174	302	22	8	334	112	+41	-0	-23	-36	+61	4.3
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
2012	21	A MLE	Quad Cities River Bandits	—	237	218	60	18	1	4	10	33	9	3	0	275	333	422	755	147	303	14	4	320	103	—	—	—	—	—	—
2013	22	AA MLE	Springfield Cardinals	—	207	190	54	7	0	5	13	22	1	7	3	284	333	400	733	116	291	11	6	315	99	—	—	—	—	—	—
2013	22	A+ MLE	Palm Beach Cardinals	—	264	249	64	13	2	8	12	39	3	4	5	257	299	422	721	165	273	15	5	308	95	—	—	—	—	—	—
2014	23	AAA MLE	Memphis Redbirds	—	556	514	132	30	0	7	29	79	10	11	5	257	309	356	665	99	289	14	5	295	86	—	—	—	—	—	—
2015	24	MLB MLE	St. Louis Cardinals	—	256	235	71	14	4	8	18	56	1	2	1	302	354	498	852	196	372	22	7	371	137	+11	+0	-4	-7	+6	0.7
2015	24	AAA MLE	Memphis Redbirds	—	372	332	74	24	2	7	34	83	3	5	6	223	301	370	671	148	269	22	9	295	86	—	—	—	—	—	—
2016	25	MLB MLE	St. Louis Cardinals	—	649	583	159	33	3	24	51	133	12	7	5	273	344	463	807	190	319	20	8	357	128	+22	-1	-3	-7	+14	2.6
2017	26	MLB MLE	St. Louis Cardinals	—	401	343	80	15	1	10	50	87	5	3	6	233	339	370	709	137	286	22	12	324	105	+2	-2	-0	-5	+9	0.4
2017	26	AAA MLE	Memphis Redbirds	—	38	34	8	2	0	3	4	9	0	0	0	235	316	559	875	324	237	24	11	389	149	—	—	—	—	—	—
2017	26	A MLE	Peoria Chiefs	—	15	15	2	1	0	0	0	4	0	1	0	133	133	200	333	67	205	27	0	170	1	—	—	—	—	—	—
2018	27	MLB MLE	Oakland Athletics	—	605	546	148	40	0	30	42	114	12	2	0	271	337	509	846	238	290	19	7	367	134	+25	+0	-5	-6	+13	2.7
2019	28	MLB MLE	Oakland Athletics	—	393	357	89	16	1	14	29	84	3	2	0	249	311	417	728	168	289	21	7	325	106	+3	+0	-2	-4	+9	0.5
2019	28	AAA MLE	Las Vegas Aviators	—	25	24	6	0	0	1	1	5	0	0	0	250	280	375	655	125	287	20	4	272	70	—	—	—	—	—	—
2020	29	MLB MLE	Oakland Athletics	—	171	159	36	6	0	5	9	53	1	4	0	226	272	358	631	132	304	31	5	284	79	-4	+1	-3	-2	+4	-0.5
2021	30	MLB MLE	Oakland Athletics	—	188	173	38	8	0	5	13	48	2	1	0	220	282	353	635	133	275	26	7	291	83	-4	+0	-4	-2	+4	-0.5
2022	31	MLB MLE	Oakland Athletics	—	139	127	24	4	0	5	8	48	2	2	0	189	248	339	587	150	253	35	6	267	67	-5	+0	-2	-3	+3	-0.7
2022	31	AAA MLE	Louisville Bats	—	119	112	24	3	0	3	5	34	2	0	0	214	261	321	582	107	277	29	4	248	54	—	—	—	—	—	—
2023	32	AAA MLE	Charlotte Knights	—	206	186	35	8	0	4	15	47	3	0	0	188	260	296	556	108	226	23	7	246	53	—	—	—	—	—	—
2024	33	AAA MLE	Las Vegas Aviators	—	118	111	17	3	0	1	6	40	1	0	0	153	203	207	411	54	221	34	5	177	6	—	—	—	—	—	—
2012	21	A MLE	Quad Cities River Bandits	—	237	218	60	18	1	4	10	33	9	3	0	275	333	422	755	147	309	14	4	320	103	—	—	—	—	—	—
2012	21	A RAW	Quad Cities River Bandits	—	237	210	62	18	1	4	18	25	9	3	0	295	376	448	823	152	320	11	8	369	103	—	—	—	—	—	—
2013	22	A+ MLE	3 teams	—	571	532	141	24	2	15	30	75	5	18	10	265	310	402	713	137	283	13	5	311	97	—	—	—	—	—	—
2013	22	A+ RAW	3 teams	—	571	516	159	26	5	16	46	60	5	18	10	308	370	471	841	163	323	11	8	371	97	—	—	—	—	—	—
2014	23	AAA MLE	Memphis Redbirds	—	556	514	132	30	0	7	29	79	10	11	5	257	309	356	665	99	291	14	5	295	86	—	—	—	—	—	—
2014	23	AAA RAW	Memphis Redbirds	—	556	500	144	32	0	9	43	61	10	11	5	288	356	406	762	118	312	11	8	342	86	—	—	—	—	—	—
2015	24	AAA MLE	2 teams	—	628	567	146	39	6	15	52	139	4	7	7	257	324	427	751	169	313	22	8	326	107	—	—	—	—	—	—
2015	24	AAA RAW	2 teams	—	628	553	158	43	6	18	66	118	4	7	7	286	366	483	849	197	332	19	11	372	107	—	—	—	—	—	—
2016	25	MLB MLE	St. Louis Cardinals	—	649	583	159	33	3	24	51	133	12	7	5	273	344	463	807	190	315	20	8	357	128	+22	-1	-3	-7	+14	2.6
2016	25	MLB RAW	St. Louis Cardinals	—	649	582	159	35	3	22	51	133	12	7	5	273	344	457	801	184	319	20	8	354	128	+22	-1	-3	-7	+14	2.6
2017	26	MLB MLE	3 teams	—	454	392	91	19	1	13	54	100	5	4	6	232	333	385	718	153	277	22	12	324	105	+3	-2	-0	-5	+10	0.6
2017	26	MLB RAW	3 teams	—	454	388	93	21	1	13	58	97	5	4	6	240	346	399	745	160	285	21	13	335	105	+3	-2	-0	-5	+10	0.6
2018	27	MLB MLE	Oakland Athletics	—	605	546	148	40	0	30	42	114	12	2	0	271	337	509	846	238	290	19	7	367	134	+25	+0	-5	-6	+13	2.7
2018	27	MLB RAW	Oakland Athletics	—	605	546	146	41	0	27	42	114	12	2	0	267	333	491	824	223	290	19	7	360	134	+25	+0	-5	-6	+13	2.7
2019	28	MLB MLE	2 teams	—	418	381	95	16	1	15	30	89	3	2	0	249	309	415	724	165	286	21	7	322	104	+2	+0	-2	-4	+9	0.5
2019	28	MLB RAW	2 teams	—	418	380	96	17	1	14	31	88	3	2	0	253	314	413	727	161	292	21	7	321	104	+2	+0	-2	-4	+9	0.5
2020	29	MLB MLE	Oakland Athletics	—	171	159	36	6	0	5	9	53	1	4	0	226	272	358	631	132	304	31	5	284	79	-4	+1	-3	-2	+4	-0.5
2020	29	MLB RAW	Oakland Athletics	—	171	159	36	6	0	5	9	53	1	4	0	226	272	358	631	132	304	31	5	279	79	-4	+1	-3	-2	+4	-0.5
2021	30	MLB MLE	Oakland Athletics	—	188	173	38	8	0	5	13	48	2	1	0	220	282	353	635	133	275	26	7	291	83	-4	+0	-4	-2	+4	-0.5
2021	30	MLB RAW	Oakland Athletics	—	188	173	38	8	0	5	13	48	2	1	0	220	282	353	635	133	275	26	7	286	83	-4	+0	-4	-2	+4	-0.5
2022	31	MLB MLE	2 teams	—	258	239	48	7	0	8	13	82	4	2	0	201	254	331	584	130	265	32	5	258	61	-12	+0	-2	-3	+6	-1.1
2022	31	MLB RAW	2 teams	—	258	235	54	8	0	10	17	75	4	2	0	230	293	391	684	162	289	29	7	304	61	-12	+0	-2	-3	+6	-1.1
2023	32	AAA MLE	Charlotte Knights	—	206	186	35	8	0	4	15	47	3	0	0	188	260	296	556	108	226	23	7	246	53	—	—	—	—	—	—
2023	32	AAA RAW	Charlotte Knights	—	206	177	41	10	0	6	24	38	3	0	0	232	333	390	723	158	259	18	12	325	53	—	—	—	—	—	—
2024	33	AAA MLE	Las Vegas Aviators	—	118	111	17	3	0	1	6	40	1	0	0	153	203	207	411	54	229	34	5	177	6	—	—	—	—	—	—
2024	33	AAA RAW	Las Vegas Aviators	—	118	108	19	4	0	1	9	34	1	0	0	176	246	241	487	65	247	29	8	228	6	—	—	—	—	—	—
2012	21	A MLE	Quad Cities River Bandits	—	237	216	60	18	1	4	10	33	9	3	0	278	333	426	759	148	303	14	4	320	103	—	—	—	—	—	—
2013	22	A+ MLE	3 teams	—	571	531	141	24	2	15	30	75	5	18	10	266	310	403	713	137	281	13	5	311	97	—	—	—	—	—	—
2014	23	AAA MLE	Memphis Redbirds	—	556	512	132	30	0	7	29	79	10	11	5	258	309	357	667	100	289	14	5	295	86	—	—	—	—	—	—
2015	24	AAA MLE	2 teams	—	628	567	146	39	6	15	52	139	4	7	7	257	324	427	751	169	311	22	8	326	107	—	—	—	—	—	—
2016	25	MLB MLE	St. Louis Cardinals	—	649	581	159	33	3	24	51	133	12	7	5	274	344	465	808	191	319	20	8	357	128	—	—	—	—	—	—
2017	26	MLB MLE	3 teams	—	454	392	91	19	1	13	54	100	5	4	6	232	333	385	718	153	279	22	12	324	105	—	—	—	—	—	—
2018	27	MLB MLE	Oakland Athletics	—	605	546	148	40	0	30	42	114	12	2	0	271	337	509	846	238	290	19	7	367	134	—	—	—	—	—	—
2019	28	MLB MLE	2 teams	—	418	382	95	16	1	15	30	89	3	2	0	249	309	414	723	165	289	21	7	322	104	—	—	—	—	—	—
2020	29	MLB MLE	Oakland Athletics	—	171	159	36	6	0	5	9	53	1	4	0	226	272	358	631	132	304	31	5	284	79	—	—	—	—	—	—
2021	30	MLB MLE	Oakland Athletics	—	188	171	38	8	0	5	13	48	2	1	0	222	282	357	639	135	275	26	7	291	83	—	—	—	—	—	—
2022	31	MLB MLE	2 teams	—	258	239	48	7	0	8	13	82	4	2	0	201	254	331	584	130	264	32	5	258	61	—	—	—	—	—	—
2023	32	AAA MLE	Charlotte Knights	—	206	186	35	8	0	4	15	47	3	0	0	188	260	296	556	108	226	23	7	246	53	—	—	—	—	—	—
2024	33	AAA MLE	Las Vegas Aviators	—	118	110	17	3	0	1	6	40	1	0	0	155	203	209	412	55	221	34	5	177	6	—	—	—	—	—	—
▸ Model inputs — neutral MLE (past 3 seasons)
2024	33	AAA MLE	Las Vegas Aviators	—	118	110	17	3	0	1	6	40	1	0	0	155	203	209	412	55	221	34	5	177	6	—	—	—	—	—	—
▸ Career Totals
▸ Career totals — MLB only (actual + projected)
Career	—	A+C		—	2802	2517	643	142	9	93	225	623	38	23	12	255	326	430	756	174	302	22	8	334	100	+41	-0	-23	-36	+61	4.3
/ 162G	—	A+C		—	650	584	150	33	2	22	52	145	9	5	3	257	327	433	760	176	304	22	8	334	100	+10	-0	-5	-8	+14	1.0
Career	—	MLE		—	5059	4601	1146	251	14	146	354	1032	71	61	33	249	313	405	717	156	290	20	7	316	100	+41	-0	-23	-36	+61	4.3
/ 162G	—	MLE		—	650	591	147	32	2	19	45	133	9	8	4	249	312	406	718	157	289	20	7	316	100	+10	-0	-5	-8	+14	1.0

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.

2024 AAALas Vegas Aviators · 118 PAwOBA .222 → .177 (−45)K% 28.8% → 33.8%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	28.81%	÷1.022	×1.200	—	—	33.84%
BB% (unintentional) /PA	7.63%	÷0.952	×0.690	—	×0.942	5.21%
HBP% /PA	0.85%	—	×0.940	—	×0.942	0.75%
Singles /BIP	18.92%	÷0.974	×0.930	×1.050	×0.942	17.87%
Doubles /BIP	5.41%	÷1.088	×0.830	×1.050	×0.942	4.08%
Triples /BIP	0.00%	÷1.150	×0.970	×1.050	×0.942	0.00%
Home runs /BIP	1.35%	÷1.001	×0.700	—	×0.942	0.89%

Factors used: league row International League. Park (home-season share, regressed): HR 100, 1B 95, 2B 118, 3B 130, K 104, BB 90 — 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 ×1.050.

Result: wOBA .222 → .177; ISO .065 → .044; BABIP .247 → .221. 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).

2023 AAACharlotte Knights · 206 PAwOBA .320 → .246 (−74)K% 18.4% → 22.6%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	18.45%	÷0.978	×1.200	—	—	22.64%
BB% (unintentional) /PA	11.65%	÷1.078	×0.690	—	×0.952	7.10%
HBP% /PA	1.46%	—	×0.940	—	×0.952	1.30%
Singles /BIP	17.99%	÷0.967	×0.930	×1.004	×0.952	16.53%
Doubles /BIP	7.19%	÷0.971	×0.830	×1.004	×0.952	5.87%
Triples /BIP	0.00%	÷0.996	×0.970	×1.004	×0.952	0.00%
Home runs /BIP	4.32%	÷1.152	×0.700	—	×0.952	2.50%

Factors used: league row International League. Park (home-season share, regressed): HR 130, 1B 93, 2B 94, 3B 99, K 96, BB 116 — 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 ×1.004.

Result: wOBA .320 → .246; ISO .158 → .107; BABIP .259 → .226. 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).

2022 AAALouisville Bats · 119 PAwOBA .340 → .248 (−92)K% 22.7% → 28.4%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	22.69%	÷0.958	×1.200	—	—	28.44%
BB% (unintentional) /PA	6.72%	÷1.023	×0.690	—	×0.962	4.36%
HBP% /PA	1.68%	—	×0.940	—	×0.962	1.52%
Singles /BIP	25.61%	÷0.996	×0.930	×0.991	×0.962	22.80%
Doubles /BIP	4.88%	÷0.955	×0.830	×0.991	×0.962	4.04%
Triples /BIP	0.00%	÷0.900	×0.970	×0.991	×0.962	0.00%
Home runs /BIP	6.10%	÷1.282	×0.700	—	×0.962	3.20%

Factors used: league row International League. Park (home-season share, regressed): HR 156, 1B 99, 2B 91, 3B 80, K 92, BB 105 — 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 ×0.991.

Result: wOBA .340 → .248; ISO .174 → .098; BABIP .325 → .277. 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).

2019 AAALas Vegas Aviators · 25 PAwOBA .347 → .272 (−75)K% 16.0% → 20.8%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	16.00%	÷0.990	×1.290	—	—	20.84%
BB% (unintentional) /PA	8.00%	÷0.985	×0.710	—	×0.992	5.72%
HBP% /PA	0.00%	—	×0.980	—	×0.992	0.00%
Singles /BIP	31.58%	÷1.018	×0.900	—	×0.992	27.69%
Doubles /BIP	0.00%	÷0.951	×0.810	—	×0.992	0.00%
Triples /BIP	0.00%	÷1.102	×0.810	—	×0.992	0.00%
Home runs /BIP	5.26%	÷1.119	×0.780	—	×0.992	3.64%

Factors used: league row PCL. Park (home-season share, regressed): HR 124, 1B 104, 2B 90, 3B 120, K 98, BB 97 — 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).

Result: wOBA .347 → .272; ISO .130 → .087; BABIP .333 → .287. 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 AAAMemphis Redbirds · 38 PAwOBA .488 → .389 (−98)K% 18.4% → 23.5%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	18.42%	÷1.010	×1.290	—	—	23.53%
BB% (unintentional) /PA	15.79%	÷0.997	×0.710	—	×1.018	11.45%
HBP% /PA	0.00%	—	×0.980	—	×1.018	0.00%
Singles /BIP	12.00%	÷1.001	×0.900	—	×1.018	10.98%
Doubles /BIP	12.00%	÷1.021	×0.810	—	×1.018	9.69%
Triples /BIP	0.00%	÷1.135	×0.810	—	×1.018	0.00%
Home runs /BIP	16.00%	÷0.980	×0.780	—	×1.018	12.96%

Factors used: league row PCL. Park (home-season share, regressed): HR 96, 1B 100, 2B 104, 3B 127, K 102, BB 99 — 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).

Result: wOBA .488 → .389; ISO .469 → .375; BABIP .286 → .237. 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 APeoria Chiefs · 15 PAwOBA .225 → .170 (−55)K% 20.0% → 26.0%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	20.00%	÷1.046	×1.360	—	—	26.00%
BB% (unintentional) /PA	0.00%	÷0.969	×0.690	—	×0.960	0.00%
HBP% /PA	0.00%	—	×0.780	—	×0.960	0.00%
Singles /BIP	8.33%	÷1.035	×0.920	—	×0.960	7.11%
Doubles /BIP	16.67%	÷0.992	×0.830	—	×0.960	13.39%
Triples /BIP	0.00%	÷0.983	×0.910	—	×0.960	0.00%
Home runs /BIP	0.00%	÷0.970	×0.800	—	×0.960	0.00%

Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 94, 1B 107, 2B 98, 3B 97, K 109, BB 94 — applied at half strength. Age: age 26 vs a level average of 22.0 → −4.0% on BB/HBP/hit rates (4.0 yr older than average).

Result: wOBA .225 → .170; ISO .133 → .099; BABIP .250 → .205. 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 AAAMemphis Redbirds · 372 PAwOBA .364 → .295 (−69)K% 16.7% → 22.2%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	16.67%	÷0.967	×1.290	—	—	22.23%
BB% (unintentional) /PA	12.37%	÷1.013	×0.710	—	×1.048	9.08%
HBP% /PA	0.81%	—	×0.980	—	×1.048	0.83%
Singles /BIP	17.83%	÷1.030	×0.900	×0.986	×1.048	16.10%
Doubles /BIP	10.85%	÷0.946	×0.810	×0.986	×1.048	9.61%
Triples /BIP	0.78%	÷0.900	×0.810	×0.986	×1.048	0.72%
Home runs /BIP	4.26%	÷1.224	×0.780	—	×1.048	2.85%

Factors used: league row PCL. Park (home-season share, regressed): HR 145, 1B 106, 2B 89, 3B 80, K 93, BB 103 — 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 ×0.986.

Result: wOBA .364 → .295; ISO .203 → .155; BABIP .304 → .269. 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 AAAMemphis Redbirds · 556 PAwOBA .333 → .295 (−38)K% 11.0% → 14.2%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	10.97%	÷0.997	×1.290	—	—	14.20%
BB% (unintentional) /PA	7.37%	÷1.031	×0.710	—	×1.050	5.33%
HBP% /PA	1.80%	—	×0.980	—	×1.050	1.85%
Singles /BIP	23.46%	÷1.034	×0.900	×1.014	×1.050	21.74%
Doubles /BIP	7.29%	÷0.917	×0.810	×1.014	×1.050	6.85%
Triples /BIP	0.00%	÷0.900	×0.810	×1.014	×1.050	0.00%
Home runs /BIP	2.05%	÷1.036	×0.780	—	×1.050	1.62%

Factors used: league row PCL. Park (home-season share, regressed): HR 107, 1B 107, 2B 83, 3B 80, K 99, BB 106 — 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 ×1.014.

Result: wOBA .333 → .295; ISO .118 → .102; BABIP .312 → .289. 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).