Low 40s is not hardcore at all, I know someone who played in 16 degrees. Four of the six courts were being used tonight. Earlier this month courts were totally wet but we still hit singles on wet puddled courts and four others played doubles for two hours on them, that's hardcore.
LOL. Agreed. I don't like to attempt play on wet courts because of the likelihood of slipping and getting hurt. But as much as I LOVE hot weather tennis, I can't stop playing just because of temperature. Unless the wind is an issue, I've played (and DO play) at temps well below 40. You layer up, and as you warm up you remove layers. Geez, guys, this is TENNIS! How can you not play when you have a chance??? LOL