What is the difference between first serve and second serve?

First and second A serve is made when there has been no fault on the point; a second serve occurs when there has already been one fault on the point. The rules make no distinction between the first and second serve. However, the tactics used are different.

How much time between first and second serve?

Guest. The rule between first and second serve is that the second serve should be hit without delay. Lots of gray area there. Between points is 20 seconds (except at ATP World Tour and Mens Challengers where it’s 25 seconds).

How fast is Federer’s serve?

143.0 mph
Men

Rank	Player	Speed
35	Robin Söderling	230.1 km/h (143.0 mph)
Nick Kyrgios	230.1 km/h (143.0 mph)
Roger Federer	230.1 km/h (143.0 mph)
38	Martin Verkerk	230.0 km/h (142.9 mph)

Does Nadal hit a kick serve?

Nadal does not even hit a true kick serve. As a lefty his kick serve would jump into a righty’s forehand, which is not his style at all. Nadal’s serves are all slice or topspin.

Why is it called let in tennis?

The word ‘let’ originates from the word ‘lettian,’ which means ‘to hinder. ‘ Can you challenge a let? In professional tennis, players are not allowed to challenge a let call.

Why do they say let in tennis?

Lets in the 12th Century were also known as obstacles, so when you hear the word let on a tennis court today, instead of there being a delay due to a herd of stubborn cows blocking an entrance, the interruption to play might just be because somebody was simply just not ready to receive serve.

How fast is kyrgios?

230.1 km/h
However, John Isner holds the ATP’s official record for the fastest serve at 253 km/h (157.2 mph)….Men.

Player	Nick Kyrgios
Speed	230.1 km/h (143.0 mph)
Event	2019 Wimbledon
Type	Singles
Round	2R