Marcus Semien

2013–2026 · 14 seasons · Bats right, throws right · Born 1990

JavaScript is switched off, so the extra columns cannot be unfolded. Every season below is already on the page and every number in it is real.

17 of 26 columns. Folded away: CS, TB, HBP, wOBA, wRAA, WAR: Bat, WAR: Field, WAR: Run, WAR: Pos.

Skip the season table (29 keyboard stops) ↓

Hitting

Season	Team	Lg	G	PA	AB	R	H	2B	3B	HR	RBI	BB	SO	SB	AVG	OBP	SLG	OPS	WAR
2013	Chicago White Sox	AL	21	71	69	7	18	4	0	2	7	1	22	2	.261	.268	.406	.673	0.2
2014	Chicago White Sox	AL	64	255	231	30	54	10	2	6	28	21	70	3	.234	.300	.372	.673	1.2
2015	Oakland Athletics	AL	155	601	556	65	143	23	7	15	45	42	132	11	.257	.310	.405	.715	2.7
2016	Oakland Athletics	AL	159	621	568	72	135	27	2	27	75	51	139	10	.238	.300	.435	.735	4.5
2017	Oakland Athletics	AL	85	386	342	53	85	19	1	10	40	38	85	12	.249	.325	.398	.722	2.1
2018	Oakland Athletics	AL	159	703	632	89	161	35	2	15	70	61	131	14	.255	.318	.388	.706	3.4
2019	Oakland Athletics	AL	162	747	657	123	187	43	7	33	92	87	102	10	.285	.369	.522	.892	6.6
2020	Oakland Athletics	AL	53	236	211	28	47	9	1	7	23	25	50	4	.223	.305	.374	.679	1.0
2021GGSS	Toronto Blue Jays	AL	162	724	652	115	173	39	2	45	102	66	146	15	.265	.334	.538	.873	5.4
2022	Texas Rangers	AL	161	724	657	101	163	31	5	26	83	53	120	25	.248	.304	.429	.733	4.7
2023SS	Texas Rangers	AL	162	752	670	122	185	40	4	29	100	72	110	14	.276	.348	.478	.826	5.0
2024	Texas Rangers	AL	159	718	650	101	154	27	2	23	74	64	105	8	.237	.308	.391	.699	2.0
2025GG	Texas Rangers	AL	127	534	470	62	108	16	1	15	62	50	93	11	.230	.305	.364	.669	1.3
2026live	New York Mets	NL	118	460	418	42	91	10	1	14	43	36	97	10	.218	.279	.347	.626	0.3
Career	14 seasons · 2026 in progress		1747	7532	6783	1010	1704	333	37	267	844	667	1402	149	.251	.321	.429	.750	40.5

Gold shading marks a top-five finish in that league that season. Filled for first, shaded for second and third, faint for fourth and fifth, with the exact place in the corner of the cell. These rankings are ours, not part of the source data: we work them out from the season lines on this site and count each league on its own, so a first in the American League is not a first across baseball. Rate statistics use the same qualifying line as the season tool, which is why a relief pitcher can have the lowest ERA in his league and still have no shading on it — he did not pitch enough innings to qualify. A ranking is only drawn when its column is on screen; press Show all columns for the rest.

The dark chips beside a season are awards. Those are records rather than our arithmetic: MVP (Most Valuable Player), CY (Cy Young Award), ROY (Rookie of the Year), GG (Gold Glove), SS (Silver Slugger). Two of them are lettered in the metal they are named after — Gold Glove in gold, Silver Slugger in silver — but the letters say which is which, so nothing here depends on telling the two apart by colour.

Any shaded cell or chip will explain itself. Point at one, or tab to it and it opens on focus, and it names the league, the season and the statistic in full. On a touchscreen, tap it once to open and once more to close.

The 2026 season is still being played. Its line was last updated on 1 September 2026, about 138 games into the schedule, and it is not a finished record. Both it and the career total below will keep changing until the season ends. A gold cell on that row means the player is leading or near the top right now, not that he finished there. Park factors for 2026 are estimated from the previous three seasons, because the source database publishes them only once a season is complete, so the WAR that uses them will move again when the real figures arrive.

The WAR columns are worked out on this site — they are not part of the source data, and they will not match Baseball-Reference exactly.

Everything else on this page comes straight from the Lahman database. WAR is our own calculation from those same season lines: fielding is estimated from putouts and assists rather than measured, fielding innings are missing before 1954, and the fielding component is capped. Treat it as a reasonable estimate of value, not as a record. The season tool explains the method in full.

— means the value is not in the source for that season, which is not the same as zero. In the Career and Subtotal rows it marks a statistic that cannot be added up across seasons — wOBA and FIP both need league constants that change every year, so we leave them blank rather than invent one. Leagues on this page: AL (American League), NL (National League).

Data for 1871 to 2025: Lahman Baseball Database 2025, compiled by SABR (Society for American Baseball Research) and licensed under CC BY-SA 3.0 Unported. Negro Leagues data licensed from Seamheads.com and included under SABR major-league recommendations (2021-02-11, 2024-06-03). The season lines on this page are our own derivative of that database — the WAR columns are computed here — and they are published under the same CC BY-SA 3.0 Unported licence, as ShareAlike requires. That database is published once a season is complete, so the 2026 figures on this site come from a different place: the MLB Stats API, whose notice reads “Copyright 2026 MLB Advanced Media, L.P. Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt”. Those numbers are MLB Advanced Media, L.P.’s, not SABR (Society for American Baseball Research)’s, and they carry that notice rather than the CC BY-SA 3.0 Unported licence above. Not affiliated with, endorsed by, or connected to Major League Baseball or any of its clubs.