This montage has just been posted on YouTube today and dates from exactly 54 years ago. At the outset there's a brief clip of one of that Saturday's bouts:
John Lister's site says that the matches that day were Mike Eagers vs. Alan Colbeck, Sayed Saif Shah vs. Lee Sharron and Steve Clements vs. Jose Rodriguez. The keen-eyed amongst you might be able to discern which of those pairings are shown here!
However, what I think is really interesting is that further into the compilation, at around 4:14, there's a caption titled "Professional Wrestling Result". Clearly that afternoon's coverage had been live and had ended before the last bout's conclusion!
I agree it has to be Eagers and Colbeck, the hairline is definitely Colbeck.
If it is Colbeck/Eagers probably the only fleeting seconds for both men available on the internet
And I'll plump for Ken Lazenby as ref.
Looks very like Alan Colbeck, and Mike Eagers usually wore white trunks IIRC.