A prefix is a series of letters, or a word, that is added to the  beginning of a word and changes the meaning. For example, in the  word midnight, mid is the prefix.
The more vigorous an activity, however, the more calories youâll burn. Changes in body weight are related to both the duration and intensity of play. Playing singles tennis at average intensity expends 300-600 kcal/h, while high intensity tennis training expends 450-900 kcal/h. Diabetes. The incidence of diabetes worldwide of persons aged 20 or above in 1995 was 4% (approx. 135 million), a figure that will increase to approx. 5.4% (300 million people) by 2025.
The IsnerâMahut match at the 2010 Wimbledon Championships holds the record for the longest tennis match both in time and games played. Only two official ATP matches have lasted longer than 7 hours. Eleven matches have lasted longer than 6 hours, and 36 matches have lasted longer than 5 hours.1  11 h 05 Wimbledon 2010, 1st round: John Isner def. 2  Nicolas Mahut, 6â4, 3â6, 6â7 (7â9) , 7â6 (7â3) , 70â68 (3 days).ohn Isner (left) defeated Nicolas Mahut (right) 6â4, 3â6, 6â7, (7â9) , 7â6 (7â3) , 70â68 in a record 11 hours and 5 minutes. A plaque commemorating the Isner-Mahut match exists on Court 18 at Wimbledon. This article details longest tennis match records by duration or number of games.