World Tennis Number: Second Serve
The World Tennis Number (WTN) is a new ITF global rating system for all tennis players, regardless of age, gender or ability. The USTA recently announced the adoption of WTN and has been conducting informational webinars on the forthcoming system. A couple of weeks ago, I attended one of those sessions and gathered some additional information about WTN from both the presentation and the question and answer session that ensued.