Just going to point out that the time where Yoda and Luke sparred was way after the last time Yoda probably even swung anything resembling a sword around.
It's sorta like how head to head has Vader > Yoda.
While I think we can all agree ROTS Yoda would destroy any version of suited Vader I could honestly see him taking down Yoda during the ESB-ROTJ period where I think the match up was set. I think that was the reason it had Vader winning.