![French Open, Wimbledon, US Open and Australian Open to adopt new final-set tie-break rules and ensures Isner-Mahut record will never be eclipsed French Open, Wimbledon, US Open and Australian Open to adopt new final-set tie-break rules and ensures Isner-Mahut record will never be eclipsed](https://talksport.com/wp-content/uploads/sites/5/2022/03/e145bc9f-7b97-4577-a706-fc899fea84ac.jpg?strip=all&w=960&quality=40)
French Open, Wimbledon, US Open and Australian Open to adopt new final-set tie-break rules and ensures Isner-Mahut record will never be eclipsed
![The end of the marathon match: Wimbledon announce final sets will now be decided by tie-breaks at 12-12 The end of the marathon match: Wimbledon announce final sets will now be decided by tie-breaks at 12-12](https://www.telegraph.co.uk/content/dam/tennis/2018/10/19/TELEMMGLPICT000003404309_trans_NvBQzQNjv4BqqVzuuqpFlyLIwiB6NTmJwTeV2s_d-TiXglhCsfL82ss.jpeg)
The end of the marathon match: Wimbledon announce final sets will now be decided by tie-breaks at 12-12
![Reilly Opelka wins the longest tie-break in ATP tour history to overcome John Isner in the Dallas Open semi-finals - Eurosport Reilly Opelka wins the longest tie-break in ATP tour history to overcome John Isner in the Dallas Open semi-finals - Eurosport](https://imgresizer.eurosport.com/unsafe/2560x0/filters:format(jpeg)/origin-imgresizer.eurosport.com/2022/02/13/3315309-67786448-2560-1440.jpg)
Reilly Opelka wins the longest tie-break in ATP tour history to overcome John Isner in the Dallas Open semi-finals - Eurosport
![In men's tennis, prior to the introduction of the tie-break, (a) what is the longest set & highest score in major tournament history, and (b) who were the players? - Quora In men's tennis, prior to the introduction of the tie-break, (a) what is the longest set & highest score in major tournament history, and (b) who were the players? - Quora](https://qph.cf2.quoracdn.net/main-qimg-5af5e5f87cbc51a42e81bd55e542a3f1.webp)
In men's tennis, prior to the introduction of the tie-break, (a) what is the longest set & highest score in major tournament history, and (b) who were the players? - Quora
![John Isner is tennis' marathon man AGAIN after playing out mammoth 46-POINT tie break | Daily Mail Online John Isner is tennis' marathon man AGAIN after playing out mammoth 46-POINT tie break | Daily Mail Online](https://i.dailymail.co.uk/1s/2022/02/13/12/54135421-10507877-image-a-47_1644756635688.jpg)