| | Event type

Lightweight (≤71 kilograms), Men

Date	6 August 1984 — 16:00
Status	Olympic
Location	Eagle's Nest Arena, California State University at Los Angeles, Los Angeles, California
Participants	31 from 31 countries
Format	Two single-elimination pools, with winner of each pool advanced to the final. All judoka losing to the winner of each pool advanced to repêchage pools, with the winners of the repêchage pools earning bronze medals.

The defending champion was Italy’s Ezio Gamba, who had placed second at the 1983 World Championships to Japan’s Hidetoshi Nakanishi. They were the two favorites and this class was one on which the boycott had minimal effect. In the first round, Nakanishi had difficulty with the Senegalese Ibrahima Diallo. Nakanishi won but broke a rib in the process and would not win a medal. Gamba started out with a tough match against Serge Dyot (FRA), the 1984 European runner-up. But Gamba had little trouble, Dyot eventually submitting – twice, as the referee did not notice the first submission. Gamba made the final where he faced Korean An Byeong-Geun. Gamba was favored but An scored two kokas early on, and was able to hold off Gamba to win the gold medal.

Pos	Competitor	NOC
1	An Byeong-Geun	KOR	Gold
2	Ezio Gamba	ITA	Silver
=3	Luiz Onmura	BRA	Bronze
=3	Kerrith Brown	GBR	Bronze
=5	Glenn Beauchamp	CAN
=5	Hidetoshi Nakanishi	JPN
=7	Kieran Foley	IRL
=7	Serge Dyot	FRA
=9	Johannes Wohlwend	LIE
=9	Juan Vargas	ESA
=11	Mike Swain	USA
=11	Liaw Der-Cheng	TPE
=13	Yi Dexin	CHN
=13	Federico Vizcarra	MEX
=13	Hassan Ben Gamra	TUN
=13	Yousuf Al-Hammad	KUW
=13	Joaquín Ruiz	ESP
=13	Steffen Stranz	FRG
=19	Tam Chin Kee	HKG
=19	Shaun O'Leary	NZL
=19	Jean Claude N'Guessan	CIV
=19	Rony Khawam	LBN
=19	Yousry Zagloul	EGY
=19	Frank Evensen	NOR
=19	Michael Young	AUS
=19	Álvaro Sanabria	CRC
=19	Antti Hyvärinen	FIN
=19	Vojo Vujević	YUG
=19	Ibrahima Diallo	SEN
=19	Hugo d'Assunção	POR
=19	Alick Kalwihzi	ZAM
DNS	Luis Chirinos	HON

Pool A

Date	6 August 1984

Round One

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Glenn Beauchamp	CAN	Fusen-gachi	Luis Chirinos	HON	walkover
Match #2	06 Aug	Yi Dexin	CHN	Waza-ari awasete ippon	Tam Chin Kee	HKG
Match #3	06 Aug	Johannes Wohlwend	LIE	Waza-ari	Shaun O'Leary	NZL
Match #4	06 Aug	Ezio Gamba	ITA	Ippon	Serge Dyot	FRA
Match #5	06 Aug	Hassan Ben Gamra	TUN	Ippon	Rony Khawam	LBN
Match #6	06 Aug	Luiz Onmura	BRA	Ippon	Yousry Zagloul	EGY
Match #7	06 Aug	Mike Swain	USA	Yusei-gachi	Frank Evensen	NOR
Match #8	06 Aug	Yousuf Al-Hammad	KUW	Ippon	Jean Claude N'Guessan	CIV

Quarter-Finals

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Glenn Beauchamp	CAN	Yuko	Yi Dexin	CHN
Match #2	06 Aug	Ezio Gamba	ITA	Ippon	Johannes Wohlwend	LIE
Match #3	06 Aug	Luiz Onmura	BRA	Waza-ari	Hassan Ben Gamra	TUN
Match #4	06 Aug	Mike Swain	USA	Ippon	Yousuf Al-Hammad	KUW

Semi-Finals

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Ezio Gamba	ITA	Ippon	Glenn Beauchamp	CAN
Match #2	06 Aug	Luiz Onmura	BRA	Yusei-gachi	Mike Swain	USA

Final Round

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Ezio Gamba	ITA	Ippon	Luiz Onmura	BRA

Repêchage

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Serge Dyot	FRA	Yuko	Johannes Wohlwend	LIE
Match #2	06 Aug	Glenn Beauchamp	CAN	Yusei-gachi	Serge Dyot	FRA
Match 3/5	06 Aug	Luiz Onmura	BRA	Koka	Glenn Beauchamp	CAN

Pool B

Date	6 August 1984

Round One

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Liaw Der-Cheng	TPE	Yuko	Michael Young	AUS
Match #2	06 Aug	Joaquín Ruiz	ESP	Waza-ari awasete ippon	Álvaro Sanabria	CRC
Match #3	06 Aug	Steffen Stranz	FRG	Ippon	Antti Hyvärinen	FIN
Match #4	06 Aug	Kerrith Brown	GBR	Yusei-gachi	Vojo Vujević	YUG
Match #5	06 Aug	Hidetoshi Nakanishi	JPN	Ippon	Ibrahima Diallo	SEN
Match #6	06 Aug	Federico Vizcarra	MEX	Waza-ari	Hugo d'Assunção	POR
Match #7	06 Aug	Juan Vargas	ESA	Ippon	Alick Kalwihzi	ZAM
Match #8	06 Aug	An Byeong-Geun	KOR	Ippon	Kieran Foley	IRL

Quarter-Finals

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Liaw Der-Cheng	TPE	Yuko	Joaquín Ruiz	ESP
Match #2	06 Aug	Kerrith Brown	GBR	Ippon	Steffen Stranz	FRG
Match #3	06 Aug	Hidetoshi Nakanishi	JPN	Waza-ari	Federico Vizcarra	MEX
Match #4	06 Aug	An Byeong-Geun	KOR	Waza-ari awasete ippon	Juan Vargas	ESA

Semi-Finals

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Kerrith Brown	GBR	Koka	Liaw Der-Cheng	TPE
Match #2	06 Aug	An Byeong-Geun	KOR	Yuko	Hidetoshi Nakanishi	JPN

Final Round

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	An Byeong-Geun	KOR	Yusei-gachi	Kerrith Brown	GBR

Repêchage

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match #1	06 Aug	Kieran Foley	IRL	Ippon	Juan Vargas	ESA
Match #2	06 Aug	Hidetoshi Nakanishi	JPN	Yuko	Kieran Foley	IRL
Match 3/5	06 Aug	Kerrith Brown	GBR	Koka	Hidetoshi Nakanishi	JPN

Final Round

Date	6 August 1984

Match	Date/Time	Competitor	NOC	Result	Competitor	NOC
Match 1/2	06 Aug	An Byeong-Geun	KOR	Koka	Ezio Gamba	ITA