Jag fick detta svar på Bridgewinners på mitt inlägg med finalen, som förklarar differensen i poäng BBO vs officiellt resultat:

” BBO software was having problems with Undo for most of the Vanderbilt but it got fixed for 3rd and 4th quarters of the final.

For example, on board 19 from 2nd quarter Zia took a backwards finesse in diamonds which was needed to make 4♠ but the records say he played them normally. A few tricks later it just has him claiming 10 tricks when he has to go down.

There were other problems with History display but I don’t think they had any effect on the hand records.”