Where can one find/check the "total points" that were played in a tennis match?

[Albator]

Hi. I'm interested in betting on "total points" on tennis matches, but in case i could not watch the matches, i was wondering if a website existed with official result for total points ? (in case bookmakers would settle bets "loss" i would like to be able to check, coz everyone knows bookmakers often settle "loss" bets that are "won" .... So could someone give me a link/a website for total points..?