Jon Kemmer

PosLF

B/TL/L

Born1990-11-17

Age (2026)35

Career Stats + Projections

Viewactual = stats as recorded (prior seasons combined) + projected real-world MLB lines · MLE = level/park-neutral translations

Methodology▸ how these numbers are built

All seasons translated to park-neutral MLB-equivalent (MLE) and combined per year. 2026 = actual YTD + projected ROS + total. 2027+ 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
2014	23	A	2 teams	—	363	341	78	20	2	9	16	102	4	3	2	229	271	378	650	150	299	28	4	279	72	—	—	—	—	—	—
2014	23	A	2 teams	—	363	333	97	25	2	16	24	72	4	3	2	291	346	523	869	231	329	20	7	378	147	—	—	—	—	—	—
2015	24	AA	Corpus Christi Hooks	—	425	380	102	25	4	14	29	124	12	9	1	268	340	466	805	197	358	29	7	347	124	—	—	—	—	—	—
2015	24	AA	Corpus Christi Hooks	—	425	364	119	28	4	18	45	89	12	9	1	327	418	574	992	247	387	21	11	429	187	—	—	—	—	—	—
2016	25	AAA	Fresno Grizzlies	—	452	418	81	16	2	12	27	166	5	8	10	194	251	328	579	134	285	37	6	253	52	—	—	—	—	—	—
2016	25	AAA	Fresno Grizzlies	—	452	407	108	24	4	18	38	128	5	8	10	265	336	477	812	211	342	28	8	356	131	—	—	—	—	—	—
2017	26	AAA	Fresno Grizzlies	—	358	318	78	15	2	13	30	125	8	6	2	245	326	428	754	182	357	35	8	324	106	—	—	—	—	—	—
2017	26	AAA	Fresno Grizzlies	—	358	304	91	17	3	16	44	95	8	6	2	299	402	533	935	234	385	27	12	409	171	—	—	—	—	—	—
2018	27	AAA	Rochester Red Wings	—	463	425	83	18	3	18	27	157	9	5	2	195	258	379	637	184	258	34	6	278	71	—	—	—	—	—	—
2018	27	AAA	Rochester Red Wings	—	463	410	100	24	5	17	42	125	9	5	2	244	328	451	779	207	307	27	9	344	121	—	—	—	—	—	—
2019	28	AAA	2 teams	—	479	424	92	18	0	21	37	153	17	2	1	217	305	408	713	191	283	32	8	317	101	—	—	—	—	—	—
2019	28	AAA	2 teams	—	479	411	122	24	0	27	50	131	17	2	1	297	395	552	948	255	374	27	10	415	175	—	—	—	—	—	—
2020	29	INTL	Aguilas Cibaenas	—	15	12	3	1	0	0	2	3	1	0	0	250	400	333	733	83	333	20	13	—	—	—	—	—	—	—	—
2020	29	INTL	Aguilas Cibaenas	—	15	12	3	1	0	0	2	3	1	0	0	250	400	333	733	83	333	20	13	348	125	—	—	—	—	—	—
▸ Career Totals
Career	—			—	2555	2318	517	113	13	87	168	830	56	33	18	223	292	396	687	173	304	32	7	297	86	-41	-1	+0	-27	+72	0.3
/ 162G	—			—	650	590	131	29	3	22	43	211	14	8	5	222	291	393	684	171	303	32	7	297	86	-10	-0	+0	-7	+18	0.1

Historical Stats — Raw (Per Stint)

Actual MLB + MiLB stats as they happened, one row per stint at each level. Use this to see what really got recorded; the table above shows MLB-equivalent translations + projections.

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
2014	23	A+	Lancaster JetHawks	—	159	153	45	10	1	12	4	33	1	0	1	294	316	608	924	314	303	21	3	395	161	+11	-0	—	—	+5	1.5
2014	23	A	Quad Cities River Bandits	—	204	180	52	15	1	4	20	39	3	3	1	289	369	450	819	161	350	19	10	364	137	+9	+0	—	—	+6	1.5
2015	24	AA	Corpus Christi Hooks	—	425	364	119	28	4	18	45	89	12	9	1	327	418	574	992	247	387	21	11	429	187	+42	+1	—	—	+12	5.6
2016	25	AAA	Fresno Grizzlies	—	452	407	108	24	4	18	38	128	5	8	10	265	336	477	812	211	342	28	8	356	131	+16	-2	—	—	+13	2.7
2017	26	AAA	Fresno Grizzlies	—	358	304	91	17	3	16	44	95	8	6	2	299	402	533	935	234	385	27	12	409	171	+29	+0	—	—	+10	4.0
2018	27	AAA	Rochester Red Wings	—	463	410	100	24	5	17	42	125	9	5	2	244	328	451	779	207	307	27	9	344	121	+11	+0	—	—	+13	2.5
2019	28	AAA	Oklahoma City Dodgers	—	401	339	108	21	0	27	45	102	16	1	1	319	422	619	1.042	301	384	25	11	450	203	+47	-0	—	—	+11	5.9
2019	28	INTL	Algodoneros de Guasave	—	78	72	14	3	0	0	5	29	1	1	0	194	256	236	493	42	326	37	6	231	35	-6	+0	—	—	+2	-0.3
2020	29	INTL	Aguilas Cibaenas	—	15	12	3	1	0	0	2	3	1	0	0	250	400	333	733	83	333	20	13	348	125	+0	+0	—	—	+0	0.1