Why Is Tennis Scored 15 30 40? (With 3 Theorys) - Full Explanation
Why is the scoring system for tennis so weird? - Quora
Live Tennis on Twitter: "#Tsitsipas down 0-30 as a baseline ball shades long - a backhand volley for 15-30, but a missed forehand for 15-40. 30-40 pummels #Nadal's backhand for the error.
Why do points in tennis go 15, 30, and 40, as opposed to 15, 30, and 45? - Quora