What years did Roy Thomas play?

Roy Thomas played in Major League Baseball from 1977 to 1987.

Was Roy Thomas a pitcher?

Yes. Roy Thomas pitched in the major leagues, recording 20 wins and 289 strikeouts.

How many home runs did Roy Thomas hit?

Roy Thomas hit 0 career home runs with 4 hits.

What was Roy Thomas's career batting average?

Roy Thomas batted .118 over his career, with 4 hits in 34 at bats.

How many RBI did Roy Thomas have?

Roy Thomas drove in 1 runs in his career.

What was Roy Thomas's career ERA?

Roy Thomas finished with a 3.82 career ERA, going 20-11 with 289 strikeouts.

Roy Thomas

Pitcher · Career Stats, Bio & Records (1977-1987)

Roy Thomas was a pitcher who played in Major League Baseball from 1977 to 1987 for the Houston Astros, the St. Louis Cardinals, and the Seattle Mariners, a span of 11 seasons. Across 182 career appearances, he went 20-11 with a 3.82 ERA and 289 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 264.4.

W (Wins):: Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):: Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):: For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):: Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated September 8, 2026

W–L 20–11

ERA 3.82

WHIP 1.39

SO 289

Pitcher PIV 264.4

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'5" / 215 lb
Born: 6/22/1953 in Quantico, VA, USA
MLB Debut: 1977-09-21
Last Game: 1987-08-04

Full name: Roy Justin Thomas

📊 Compare This Player 📈 View Career Timeline

Career Pitching Statistics

Roy Thomas — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
20	11	182	13	0	0	7	419.3	387	178	33	196	289	3.82	264.4

Career ERA 3.82 vs. league average 3.93 across their career seasons — near league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Roy Thomas (b. 1953) Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1977	HOU	NL	0	0	4	0	0	6.3	5	2	3	4	2.84	—	0.0
1978	SLN	NL	1	1	16	1	3	28.3	21	12	16	16	3.81	3.69 (-3%)	382.9
1979	SLN	NL	3	4	26	6	1	77.0	66	25	24	44	2.92	4.00 (+27%)	-80.5
1980	SLN	NL	2	3	24	5	0	55.0	59	29	25	22	4.75	3.84 (-24%)	-477.0
1983	SEA	AL	3	1	43	0	1	88.7	95	34	32	77	3.45	3.87 (+11%)	2852.8
1984	SEA	AL	3	2	21	1	1	49.7	52	29	37	42	5.26	3.81 (-38%)	-2280.2
1985	SEA	AL	7	0	40	0	1	93.7	66	35	48	70	3.36	3.89 (+14%)	-18.6
1987	SEA	AL	1	0	8	0	0	20.7	23	12	11	14	5.23	4.29 (-22%)	-115.0
Career · 8 seasons			20	11	182	13	7	419.1	387	178	196	289	3.82	—	264

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

Roy Thomas — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
182	34	0	4	1	0	0	1	0	1	16	.118	.143	.147	.290	0

Career AVG .118 vs. league average .262 across their career seasons — 55.0% below league average.

Career OBP .143 vs. league average .326 across their career seasons — 56.2% below league average.

Career SLG .147 vs. league average .393 across their career seasons — 62.6% below league average.

Career OPS .290 vs. league average .720 across their career seasons — 59.7% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Roy Thomas — Season-by-Season Batting
Year	Team	Lg	G	AB	H	2B	RBI	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1977	HOU	NL	4	0	0	0	0	0	0	.000	—	—	—	—	0.0
1978	SLN	NL	16	4	1	0	1	0	1	.250	—	—	—	—	0.0
1979	SLN	NL	26	17	1	1	0	0	11	.059	—	—	—	—	0.0
1980	SLN	NL	24	13	2	0	0	1	4	.154	—	—	—	—	0.0
1983	SEA	AL	43	0	0	0	0	0	0	.000	—	—	—	—	0.0
1984	SEA	AL	21	0	0	0	0	0	0	.000	—	—	—	—	0.0
1985	SEA	AL	40	0	0	0	0	0	0	.000	—	—	—	—	0.0
1987	SEA	AL	8	0	0	0	0	0	0	.000	—	—	—	—	0.0
Career · 8 seasons			182	34	4	1	1	1	16	.118	—	—	—	—	0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Game Log & Splits

View full game log (364 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Roy Thomas — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	90	16	0	4	0	1	.250
Away	92	18	0	0	0	0	.000

Pitching — Home / Away

Roy Thomas — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	90	220.0	203	91	102	148	3.72
Away	92	199.1	184	87	94	141	3.93

Last 10 Games — Pitching

Roy Thomas — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
1987-08-04	SEA	OAK	—	2.0	1	0	0	0	3	0
1987-07-31	SEA	LAA	—	1.0	3	3	3	1	0	0
1987-07-25	SEA	BOS	—	2.0	3	2	2	1	1	0
1987-07-20	SEA	MIL	—	1.1	4	4	4	2	0	0
1987-07-17	SEA	DET	—	1.0	0	0	0	0	2	0
1987-07-09	SEA	BOS	W	4.2	5	0	0	2	1	0
1987-07-04	SEA	DET	—	5.1	4	1	1	5	3	0
1987-06-28	SEA	KCR	—	3.1	3	2	2	0	4	2
1985-10-04	SEA	CHW	—	6.1	1	0	0	0	4	0
1985-10-01	SEA	CLE	—	1.0	0	3	3	3	1	0

Fielding Statistics

Career Fielding Totals by Position

Roy Thomas — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	182	13	36	54	0	4

Season-by-Season Fielding

Roy Thomas — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	DP
1977	HOU	P	4	0	0	1	0
1978	SLN	P	16	1	1	7	0
1979	SLN	P	26	6	10	13	1
1980	SLN	P	24	5	7	10	1
1983	SEA	P	43	0	7	8	0
1984	SEA	P	21	1	4	7	1
1985	SEA	P	40	0	7	7	1
1987	SEA	P	8	0	0	1	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Roy Thomas — Career Games by Position
Position	Games
Pitcher	182

Salary History

Roy Thomas — Salary History
Year	Team	League	Salary
1986	SEA	AL	$165,000
Total Career Earnings			$165,000

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Roy Thomas (highlighted) compared to peers across the same era.

Frequently Asked Questions about Roy Thomas

What years did Roy Thomas play?: Roy Thomas played in Major League Baseball from 1977 to 1987.
Was Roy Thomas a pitcher?: Yes. Roy Thomas pitched in the major leagues, recording 20 wins and 289 strikeouts.
How many home runs did Roy Thomas hit?: Roy Thomas hit 0 career home runs with 4 hits.
What was Roy Thomas's career batting average?: Roy Thomas batted .118 over his career, with 4 hits in 34 at bats.
How many RBI did Roy Thomas have?: Roy Thomas drove in 1 runs in his career.
What was Roy Thomas's career ERA?: Roy Thomas finished with a 3.82 career ERA, going 20-11 with 289 strikeouts.