Judo at the 1964 Summer Olympics – Men's open category

File:Akio Kaminaga, Anton Geesink, Ted Boronovskis, Klaus Glahn 1964.jpg

Left to righ: Akio Kaminaga, Anton Geesink, Ted Boronovskis and Klaus Glahn

The open category was a judo event held as part of the Judo at the 1964 Summer Olympics programme. The weight class allowed judokas of any weight. The competition was held on Friday, October 23, 1964.

Judo at the 1964 Summer Olympics
Lightweight		men
Middleweight		men
Heavyweight		men
Open		men

Nine judokas from nine nations competed.

Medalists

Gold	Silver	Bronze
Anton Geesink  Netherlands	Akio Kaminaga  Japan	Theodore Boronovskis  Australia Klaus Glahn  United Team of Germany

Results

Elimination round

The nine competitors were divided into three pools of three. Each pool played a round-robin tournament, with the winner of the pool advancing to the semifinals. The second-place judoka in each group moved on to a relegation pool, in which the three of them played another round-robin with the winner becoming the fourth semifinalist.

Pool A

Place	Judoka	Score	Qual.
1	Anton Geesink (NED)	2-0	QQ
2	Akio Kaminaga (JPN)	1-1	QR
3	David Petherbridge (GBR)	0-2

Pool B

Place	Judoka	Score	Qual.
1	Theodore Boronovskis (AUS)	2-0	QQ
2	John Ryan (IRL)	1-1	QR
3	22x20px Ali Hachicha (TUN)	0-2

Pool C

Place	Judoka	Score	Qual.
1	Klaus Glahn (EUA)	2-0	QQ
2	Ben Nighthorse Campbell (USA)	1-1
3	22x20px Thomas Ong (PHI)	0-2	QR

Repechage

Campbell's injury, sustained during his match with Glahn, forced him to retire. Ong took his place in the repechage group. Kaminaga defeated both other judokas to move on to the semifinals.

Repechage pool

Place	Judoka	Score	Qual.
1	Akio Kaminaga (JPN)	2-0	QQ
2	John Ryan (IRL)	1-1
3	22x20px Thomas Ong (PHI)	0-2

Knockout rounds

The remaining four judokas competed in a single elimination bracket. Both losers in the semifinals won bronze medals. Kaminaga, who had advanced through the repechage, defeated Glahn to earn a rematch against Geesink. Geesink, who had defeated the Japanese judoka in the first round, did so again in the final match.

	Semifinals October 23					Final October 23
	1	Anton Geesink (NED)	Sasae-tsuri-komi-ashi
	4	Theodore Boronovskis (AUS)	0:12
						Anton Geesink (NED)		Kesa-gatame
						Akio Kaminaga (JPN)		9:22
	3	Akio Kaminaga (JPN)	Tai-otoshi
	2	Klaus Glahn (EUA)	4:10