![Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian](https://i.guim.co.uk/img/media/a61b3a493b3bc3df10d31137f1a5a069887d8a48/0_0_4338_2603/master/4338.jpg?width=460&quality=85&auto=format&fit=max&s=a0a9b21014b88a36afe949767c3e701e)
Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian
![Australian Open 2019: Deciding-set super tiebreak marks four rules for as many Slams as tennis gears up for innovation-Sports News , Firstpost Australian Open 2019: Deciding-set super tiebreak marks four rules for as many Slams as tennis gears up for innovation-Sports News , Firstpost](https://images.firstpost.com/wp-content/uploads/2019/01/Fed380.jpg?impolicy=website&width=1200&height=800)
Australian Open 2019: Deciding-set super tiebreak marks four rules for as many Slams as tennis gears up for innovation-Sports News , Firstpost
Australian Open 2019, tie-break rules, super tie-break at 6-6, big change to final sets, longest Australian Open match ever
![Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian](https://i.guim.co.uk/img/media/57dd265c41c89b2fafa56ef326f898685a6d244f/574_118_2352_1411/master/2352.jpg?width=1200&quality=85&auto=format&fit=max&s=a01e9f82446869479b249fcd8ca7ef49)
Australian Open 2019: heat and tie-break rule changes – explained | Australian Open 2019 | The Guardian
![Australian Open: Katie Boulter celebrates victory early in first super tiebreak | Sporting News Australia Australian Open: Katie Boulter celebrates victory early in first super tiebreak | Sporting News Australia](https://images.daznservices.com/di/library/sportal_com_au/37/21/katie-boulter_ptby4n3ezw4u19qe8olrfwoz1.jpg?t=1268305736&quality=100)