A heat delay at the Sydney Olympic Park Tennis Centre meant the start time for finals day was pushed back an hour.

But once the action got underway, world number one Griffioen was quick to record a 6-1, 6-2 victory over her compatriot and world number six Diede de Groot.

Victory over De Groot, who was contesting her second Super Series final, sees the Paralympic champion add to her previous wins in Sydney in 2013, 2014 and 2016.

In the men’s singles final, reigning champion Peifer claimed a 7-5, 6-1 win over Great Britain’s Alfie Hewett.

The world number five was pushed hard by Hewett in the first set of the title decider, but he managed to edge it and carried the momentum into the second set on his way to wrapping up victory.

Hewett, the Rio 2016 silver medallist, was competing in his first Super Series singles final.

The home crowd were given reason for cheer in the quad singles as top seed Alcott made it three successive titles in Sydney with a 6-3, 6-0 success over American David Wagner in the last match of the round-robin tournament. 

Victory against the world number two ensured Alcott finished top of the four-man group, with world number three Andy Lapthorne of Britain coming second.

The men’s and women’s doubles finals both went the way of the Rio 2016 Paralympic champions.

Top seeded French duo Stéphane Houdet and Peifer retained the men's title after overcoming British pair Hewett and Gordon Reid 6-3, 7-6 in a repeat of last year’s final.

Houdet and Peifer now hold a 5-1 head-to-head lead over Hewett and Reid, who they also beat in the Rio 2016 final.

In the women’s final, Dutch top seeds Griffioen and Aniek van Koot had to dig deep against the first-time partnership of Japan’s Yui Kamiji and Britain’s Lucy Shuker, coming from behind to win the deciding match tie-break for a 1-6, 7-5 (10-6) victory.