We were having 2 top scores on boards 23,24, but at 25 I failed to achieve 80% at the end, nevertheless, its my highest ever, you can check scores here:
http://www.casinogra...dgeFiles/15.pdf
and here is my mistake:
3♦ opening wasn't the best maybe, but 4♦ was unavaible cos of partership agreements, of course you don't wanna play 3NT and now you have to understand the meaning of 4♥ and what do you want to play. (3♦-3♥ would be forcing).

Help

S - W - N - E
3♦ -ps -3NT-ps
4♦ -ps -4♥ -ps
???