Jeff Kemp

Pos2B

B/TR/R

Born1990-03-23

Age (2027)37

No MLB projection yet. Career stats below are historical.

Overview

AALAST SEASON 2017

Year	Age	Lvl / Team	PA	AVG/OBP/SLG	HR	SB	wRC+	WAR	MLE AVG/OBP/SLG
2015	25	A+BAL	459	.260/.336/.371	6	6	53	—	.212/.267/.291
2016	26	AABowie Baysox	175	.183/.277/.288	4	4	21	—	.151/.220/.226
2017	27	AABowie Baysox	89	.256/.333/.359	2	1	59	—	.232/.276/.329

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.

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)
2014	24	A	Delmarva Shorebirds	—	473	437	111	28	3	4	17	98	10	4	3	254	297	359	657	105	314	21	4	290	40	—	—	—	—	—	—
2015	25	A+	Frederick Keys	—	459	404	105	19	4	6	39	92	7	6	5	260	336	371	707	111	318	20	8	315	53	—	—	—	—	—	—
2016	26	AA	Bowie Baysox	—	175	153	28	4	0	4	18	55	2	4	1	183	277	288	565	105	250	31	10	260	21	—	—	—	—	—	—
2017	27	AA	Bowie Baysox	—	89	78	20	2	0	2	9	23	0	1	0	256	333	359	692	103	333	26	10	309	59	—	—	—	—	—	—
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
2014	24	A MLE	Delmarva Shorebirds	—	473	443	91	23	2	3	11	134	10	4	3	205	241	287	528	81	271	28	2	227	40	—	—	—	—	—	—
2015	25	A+ MLE	Frederick Keys	—	459	419	89	15	3	4	24	133	7	6	5	212	267	291	558	79	286	29	5	246	53	—	—	—	—	—	—
2016	26	AA MLE	Bowie Baysox	—	175	159	24	3	0	3	12	68	2	4	1	151	220	226	446	75	228	39	7	199	21	—	—	—	—	—	—
2017	27	AA MLE	Bowie Baysox	—	89	82	19	2	0	2	5	29	0	1	0	232	276	329	605	98	312	33	6	255	59	—	—	—	—	—	—
2014	24	A MLE	Delmarva Shorebirds	—	473	443	91	23	2	3	11	134	10	4	3	205	241	287	528	81	282	28	2	227	40	—	—	—	—	—	—
2014	24	A RAW	Delmarva Shorebirds	—	473	437	111	28	3	4	17	98	10	4	3	254	297	359	657	105	314	21	4	290	40	—	—	—	—	—	—
2015	25	A+ MLE	Frederick Keys	—	459	419	89	15	3	4	24	133	7	6	5	212	267	291	558	79	296	29	5	246	53	—	—	—	—	—	—
2015	25	A+ RAW	Frederick Keys	—	459	404	105	19	4	6	39	92	7	6	5	260	336	371	707	111	318	20	8	315	53	—	—	—	—	—	—
2016	26	AA MLE	Bowie Baysox	—	175	159	24	3	0	3	12	68	2	4	1	151	220	226	446	75	233	39	7	199	21	—	—	—	—	—	—
2016	26	AA RAW	Bowie Baysox	—	175	153	28	4	0	4	18	55	2	4	1	183	277	288	565	105	250	31	10	260	21	—	—	—	—	—	—
2017	27	AA MLE	Bowie Baysox	—	89	82	19	2	0	2	5	29	0	1	0	232	276	329	605	98	327	33	6	255	59	—	—	—	—	—	—
2017	27	AA RAW	Bowie Baysox	—	89	78	20	2	0	2	9	23	0	1	0	256	333	359	692	103	333	26	10	309	59	—	—	—	—	—	—
2014	24	A MLE	Delmarva Shorebirds	—	473	449	91	23	2	3	11	134	10	4	3	203	241	283	524	80	271	28	2	227	40	—	—	—	—	—	—
2015	25	A+ MLE	Frederick Keys	—	459	425	89	15	3	4	24	133	7	6	5	209	267	287	554	78	286	29	5	246	53	—	—	—	—	—	—
2016	26	AA MLE	Bowie Baysox	—	175	159	24	3	0	3	12	68	2	4	1	151	220	226	446	75	228	39	7	199	21	—	—	—	—	—	—
2017	27	AA MLE	Bowie Baysox	—	89	84	19	2	0	2	5	29	0	1	0	226	276	321	597	95	312	33	6	255	59	—	—	—	—	—	—
▸ Career Totals
Career	—	MLE		—	1196	1103	223	43	5	12	52	364	19	15	9	202	250	283	533	81	285	30	4	232	43	-81	-1	+0	+4	+26	-5.2
/ 162G	—	MLE		—	650	599	122	23	3	7	28	198	10	8	5	204	251	287	538	83	286	30	4	232	43	-44	-0	+0	+2	+14	-2.8

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 AABowie Baysox · 89 PAwOBA .300 → .255 (−45)K% 25.8% → 32.5%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	25.84%	÷0.970	×1.220	—	—	32.50%
BB% (unintentional) /PA	8.99%	÷1.061	×0.700	—	×0.978	5.80%
HBP% /PA	0.00%	—	×0.850	—	×0.978	0.00%
Singles /BIP	29.09%	÷0.993	×0.970	×1.008	×0.978	27.99%
Doubles /BIP	3.64%	÷1.043	×0.860	×1.008	×0.978	2.95%
Triples /BIP	0.00%	÷1.016	×0.950	×1.008	×0.978	0.00%
Home runs /BIP	3.64%	÷0.998	×0.780	—	×0.978	2.78%

Factors used: league row EL. Park (home-season share, regressed): HR 100, 1B 99, 2B 109, 3B 103, K 94, BB 112 — applied at half strength. Age: age 27 vs a level average of 24.8 → −2.2% on BB/HBP/hit rates (2.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.008.

Result: wOBA .300 → .255; ISO .103 → .080; BABIP .333 → .312. 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 AABowie Baysox · 175 PAwOBA .257 → .199 (−58)K% 31.4% → 39.0%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	31.43%	÷0.984	×1.220	—	—	38.95%
BB% (unintentional) /PA	10.29%	÷1.084	×0.700	—	×0.988	6.56%
HBP% /PA	1.14%	—	×0.850	—	×0.988	0.96%
Singles /BIP	20.41%	÷0.992	×0.970	×0.983	×0.988	19.39%
Doubles /BIP	4.08%	÷1.053	×0.860	×0.983	×0.988	3.24%
Triples /BIP	0.00%	÷0.900	×0.950	×0.983	×0.988	0.00%
Home runs /BIP	4.08%	÷1.057	×0.780	—	×0.988	2.98%

Factors used: league row EL. Park (home-season share, regressed): HR 111, 1B 98, 2B 111, 3B 80, K 97, BB 117 — applied at half strength. Age: age 26 vs a level average of 24.8 → −1.2% on BB/HBP/hit rates (1.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.983.

Result: wOBA .257 → .199; ISO .105 → .075; BABIP .250 → .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).

2015 A+Frederick Keys · 459 PAwOBA .310 → .246 (−64)K% 20.0% → 28.9%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	20.04%	÷0.985	×1.420	—	—	28.91%
BB% (unintentional) /PA	8.50%	÷0.999	×0.630	—	×0.978	5.24%
HBP% /PA	1.53%	—	×0.860	—	×0.978	1.28%
Singles /BIP	24.36%	÷1.001	×0.940	×1.013	×0.978	22.65%
Doubles /BIP	6.09%	÷1.021	×0.830	×1.013	×0.978	4.90%
Triples /BIP	1.28%	÷0.935	×0.800	×1.013	×0.978	1.09%
Home runs /BIP	1.92%	÷1.184	×0.900	—	×0.978	1.43%

Factors used: league row CAR. Park (home-season share, regressed): HR 137, 1B 100, 2B 104, 3B 87, K 97, BB 100 — applied at half strength. Age: age 25 vs a level average of 22.8 → −2.2% on BB/HBP/hit rates (2.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.013.

Result: wOBA .310 → .246; ISO .111 → .083; BABIP .318 → .286. 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 ADelmarva Shorebirds · 473 PAwOBA .286 → .227 (−58)K% 20.7% → 28.3%

Component	Raw	Park ÷	Level factor ×	GB/FB ×	Age ×	= MLE
K% /PA	20.72%	÷0.980	×1.340	—	—	28.33%
BB% (unintentional) /PA	3.59%	÷0.990	×0.660	—	×0.980	2.35%
HBP% /PA	2.11%	—	×0.770	—	×0.980	1.60%
Singles /BIP	22.42%	÷1.024	×0.920	×0.990	×0.980	19.53%
Doubles /BIP	8.26%	÷0.927	×0.820	×0.990	×0.980	7.09%
Triples /BIP	0.88%	÷1.150	×0.940	×0.990	×0.980	0.70%
Home runs /BIP	1.18%	÷0.979	×0.820	—	×0.980	0.97%

Factors used: league row SAL. Park (home-season share, regressed): HR 96, 1B 105, 2B 85, 3B 130, K 96, BB 98 — applied at half strength. Age: age 24 vs a level average of 22.0 → −2.0% on BB/HBP/hit rates (2.0 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.990.

Result: wOBA .286 → .227; ISO .105 → .084; BABIP .314 → .271. 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).