I know this about current tour women, but Queen<br />Lindsays reamrk reminded me about Dorothy Round, a Brit who won Wimbledon in 1934 and 1937. Round was SO religious (her father was a <br />minister) that she refused to play on Sundays. This presented problems because she was good enough to make lots of finals! Wonder if tournamnet directors prayed for her to lose early!
One notorious case may have changed tennis history. The 1933 US Nationals were held up for days by torential rain with only 4 women left. This happened a lot because in those days they played the womens event in August. After days of rain, the first clear day was-you guessed it-a Sunday. Round refused to cave in, and rain delayed the event several more days. Dodo lost in the semis, but the rain delays added to the pain Helen Wills felt in her injured back. "Big 'Helen lost to "little" Helen in a spectaculat upset, her first defeat in 6 years!