On Mon, 06 Nov 2006 19:35:13 GMT, Ron
wrote:

First of all, a 10 to 9 victory is less decisive than a 9 to 8 victory.
The difference isn't much, but, at some point, it does make sense to say
that the difference is too small to make a meaningful judgement. ...

Say the match is a "first one to win 10 games". When the 9-9
situation going to the current champion, the "first one to win 10
games" is no longer in effect.

1. The champion never has to win 10 games - he only has to win 9 games
to retain the title.

2. The challenger is still required to win 10 games, and furthermore,
he is denied the chance to win 10-9.

The champion doesn't have to win by any games if he gets 9 wins. The
challenger has to win by TWO games (10-8 or better).

In the format with a fixed number of games, with a tie going to the
champion, the challenger only has to win one more game than the
champion.
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