May be strange but the best point of the recently finished Australian Open happened in the first round, and on the first day. It was in the match between third seed Jelena Jankovic and rising star Tamira Paszek, on Paszek's first match point, in the third set at 5-4. During the point, there were at least three occasions when I though it was over for Jankovic. But, she defended so well and stayed in the match eventually winning 2-6 6-2 12-10.
Jankovic could have lost in the first round, but her fighting and extreme determination won the match, and in the end she turned out to be the semifinalist, beating even defending champion Serena Williams in the quarters!