Hello,
sorry, there's not such information easily available.
If you want to get some idea, you can turn on the DevMode (HowTo =>
topic19-32161.php ), then go to your Character Sheet and look the numbers on the bottom left. Norm is the global strength of your player (1 = 100%) ; you can click on the "-1" on its right to select the surface : from to 0 to 6, the surfaces are :
- ClayCourt
- GrassCourt
- Synthetic
- CementCourt
- IndoorCarpetCourt
- IndoorHardCourt
- BlueGreenCementCourt
-1 doesn't apply any surface modifier (IIRC).
After you have changed the surface number or your player style, exit and reenter the Character Sheet and Norm will have been updated.