Thaddeus Spencer Jr. (March 28, 1943 – December 13, 2013) was an American heavyweight boxer.

A native of Portland, Oregon, Spencer made his professional boxing debut in May 1960. After building up a 31–5 record. Until this record time, Spencer was considered one of the top boxers of his time, which included wins over contenders Doug Jones, Brian London, George Johnson, Tom McNeeley And Amos Lincoln, he was highly regarded enough to be a part of the eight-man WBA elimination tournament, held after Muhammad Ali had been stripped of the title. Spencer won a 12-round decision over former title-holder Ernie Terrell in August 1967 and was then matched against Jerry Quarry in the semi-finals. Despite entering the bout as a 6–4 favorite, Spencer lost to Quarry by a 12th-round TKO. Spencer lost his next three fights by knockout, to Leotis Martin, Billy Walker and Mac Foster, and was never a serious title contender again. He continued boxing until 1971, though without winning another bout.

Spencer died in his sleep on December 13, 2013, in Vallejo, California.^[1] Spencer's son, Todd Spencer, was a football star for U.S.C., and played three seasons in the NFL for the Steelers and the Chargers.

Professional boxing record

No.	Result	Record	Opponent	Type	Round, time	Date	Location	Notes
46	Loss	32–13–1	Tony Doyle	UD	10	07/06/1971	Dallas Memorial Auditorium, Dallas, Texas
45	Loss	32–12–1	Ron Stander	UD	10	23/04/1971	Omaha Civic Auditorium, Omaha, Nebraska
44	Loss	32–11–1	Jose Luis Garcia	KO	2 (10)	05/10/1970	Caracas
43	Loss	32–10–1	Tony Doyle	UD	10	28/05/1970	Minneapolis Auditorium, Minneapolis, Minnesota
42	Draw	32–9–1	Charlie Reno	PTS	10	18/03/1970	Seattle Center Arena, Seattle, Washington
41	Loss	32–9	Mac Foster	KO	1 (10)	20/05/1969	Selland Arena, Fresno, California
40	Loss	32–8	Billy Walker	TKO	6 (10)	12/11/1968	Empire Pool, Wembley, London
39	Loss	32–7	Leotis Martin	TKO	9 (10)	28/05/1968	Royal Albert Hall, Kensington, London
38	Loss	32–6	Jerry Quarry	TKO	12 (12)	03/02/1968	Oakland Arena, Oakland, California	WBA World Heavyweight Title Tournament Semi-Finals
37	Win	32–5	Ernie Terrell	UD	12	05/08/1967	Astrodome, Houston, Texas	WBA World Heavyweight Title Tournament Quarter-Finals
36	Win	31–5	Amos Lincoln	TKO	8 (10)	26/06/1967	Cow Palace, Daly City, California
35	Win	30–5	Doug Jones	UD	10	14/10/1966	Cow Palace, Daly City, California
34	Loss	29–5	Bill McMurray	TKO	7 (12)	13/09/1966	Sacramento, California	Lost California Heavyweight Title
33	Win	29–4	Brian London	PTS	10	02/05/1966	Belle Vue Zoological Gardens, Belle Vue, Manchester
32	Win	28–4	Jack Bodell	RTD	2 (10)	18/04/1966	Belle Vue Zoological Gardens, Belle Vue, Manchester
31	Win	27–4	Billy Daniels	TD	6 (10)	21/02/1966	Kezar Pavilion, San Francisco, California
30	Win	26–4	Chuck Leslie	UD	12	19/01/1966	Kezar Pavilion, San Francisco, California	Won California Heavyweight Title
29	Loss	25–4	Amos Lincoln	SD	10	22/11/1965	Las Vegas Convention Center, Las Vegas, Nevada
28	Win	25–3	Roger Rischer	UD	12	26/04/1965	San Francisco Civic Auditorium, San Francisco, California
27	Win	24–3	Billy Daniels	UD	10	17/03/1965	Santa Monica Civic Auditorium, Santa Monica, California
26	Win	23–3	Chuck Leslie	UD	10	22/02/1965	Santa Monica Civic Auditorium, Santa Monica, California
25	Loss	22–3	Amos Lincoln	TKO	9 (10)	15/12/1964	Santa Monica Civic Auditorium, Santa Monica, California
24	Win	22–2	Tom McNeeley	KO	5 (10)	09/11/1964	Santa Monica Civic Auditorium, Santa Monica, California
23	Win	21–2	Ollie Wilson	TKO	7 (10)	13/10/1964	Castaways Hotel and Casino, Las Vegas, Nevada
22	Win	20–2	George Johnson	KO	4 (10)	04/08/1964	Castaways Hotel and Casino, Las Vegas, Nevada
21	Win	19–2	Ray Shiel	KO	5 (8)	05/07/1964	Rasunda, Solna Municipality
20	Loss	18–2	Chuck Leslie	PTS	10	30/11/1963	Reno, Nevada
19	Win	18–1	Jim Fletcher	TKO	6 (10)	12/10/1963	Santa Monica Civic Auditorium, Santa Monica, California
18	Win	17–1	Jefferson Davis	UD	10	01/08/1963	Olympic Auditorium, Los Angeles, California
17	Win	16–1	Monroe Ratliff	TKO	9 (10)	13/05/1963	Moulin Rouge, Hollywood, California
16	Win	15–1	Alvin Tiger	TKO	5 (10)	08/04/1963	Moulin Rouge, Santa Monica, California
15	Win	14–1	Leonard Dugan	UD	10	20/10/1962	Portland Memorial Coliseum, Portland, Oregon
14	Win	13–1	Prince Bongoa	KO	7 (8)	09/10/1962	San Jose, California
13	Win	12–1	Otis Lee	PTS	6	10/07/1962	Sam Houston Coliseum, Houston, Texas
12	Win	11–1	John Riggins	PTS	6	28/05/1962	San Francisco Civic Auditorium, San Francisco, California
11	Win	10–1	Art Wright	KO	2 (?)	14/04/1962	San Jose Civic Auditorium, San Jose, California
10	Win	9–1	Dave Furch	PTS	10	14/11/1961	Santa Cruz Civic Auditorium, Santa Cruz, California
9	Win	8–1	Lou Bailey	UD	10	09/09/1961	Portland Memorial Coliseum, Portland, Oregon
8	Win	7–1	Jerry Gaines	TKO	2 (10)	11/07/1961	Interstate Fairgrounds, Spokane, Washington	Referee stopped the bout at 2:59 of the second round.
7	Loss	6–1	Shirley Pembleton	PTS	4	01/07/1961	Boardwalk Hall, Atlantic City, New Jersey
6	Win	6–0	John Riggins	UD	6	04/05/1961	Spokane Coliseum, Spokane, Washington
5	Win	5–0	Yancy D. Smith	KO	3 (6)	10/04/1961	Cow Palace, Daly City, California
4	Win	4–0	Frankie Haynes	PTS	10	21/03/1961	San Jose, California
3	Win	3–0	Harvey Taylor	PTS	8	23/01/1961	Seattle Civic Ice Arena, Seattle, Washington
2	Win	2–0	Theo Lolanzo	PTS	6	07/09/1960	Sick's Stadium, Seattle, Washington
1	Win	1–0	Frankie Rowe	TKO	3 (4)	03/05/1960	Tacoma Armory, Tacoma, Washington