Emile Griffith won the Middleweight championship from Dick Tiger and lost it to Nino Bevenuti in an older version of Madison square garden and the lost it again to Benvenuti at The new Madison Square Garden
Daniel Zaragoza won the Vacant WBC Superbantamweight title with a TKO over Carlos Zarate at The Great Western Forum in Inglewood, lost it on the same ring against Paul Banke a couple of years later.
I think there have been three MSGs. The latest opened c. 1968. I think we need a New Yorker to give us the real details on that. "Spanner", eh? Is that anything like a monkey wrench?