Would you call Shabana conceding that point in the third game to give Ricketts the game an act of good sportmanship, or an act of stupidity?

It cost him the match, a lot of prize money, a higher ranking, and it was debatable if the ball was down anyway... I think it was rather silly of him.

I definitely think it was good sportsmanship, Shabana would have known if it was down and it is refreshing to see. Good on him.

Okay. So my argument then, is if Shabana knew the ball was down, why didn't he own up to that straight away? He waited for Ricketts to argue, and probably would have taken the point if he had realised the crowd was booing Ricketts and not him...

the unwritten rule of squash is "if you doubt your own get, call it not-up". i am sure the pros know who all follows this rule so they abide accordingly.

as Framboise elegantly explains, sometimes u wait for the refree to give the call when its too close to call....So shabana could have had some doubt in his mind, but when the crowd got involved thought otherwise.