After a big event (in my case a weekend tennis tournament), what's an appropriate recovery time before continuing to workout again?
A good rule of thumb, is one day of rest or active recovery for every one hour of your event.
Active recovery is low intensity, low effort, low impact. A very easy swim would be great active recovery. The ideal is to get your blood flowing a bit and circulate any lactic acid and other post-workout "stuff" to help the body recover. Typically, I would avoid any kind of impact like running, jogging, plyometrics and even an aggressive game of basketball.