選半場

網球比賽抛銀幣選半場的技巧。完全沒想過。

• If your opponent chooses to serve first, choose the side against the wind for the first game.  Then you'll have two consecutive games with the wind at your back.
• If your opponent chooses to serve first and the wind or sun is not an issue, choose the opposite end from where you warmed up so that the server sees a different view.