I have recently started trading on tennis, and have had some ok results when scalping the serve, only to then lose it all when someone breaks serve!!


Is it basically a percentage game - whereby the serve will be succesful the majority of the time, so just keep going with it throughout the match?
Also, at what point do you close the trade? At 0-15 / 0-30 / 0-40?
Any help would be appreciated.