Rockets' men's and women's sides advanced directly to the finals after topping their respective tables during the group phase, winning 13 of their combined 16 matches.
The Midlanders already have the Hundred Helix trophy sewn up - a new prize awarded to the best-performing franchise across the men's and women's competitions.
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Now, though, Rockets, want to secure individual men's and women's glory, live on Sky Sports Cricket and Sky Sports Mix.
The women are up first at the Home of Cricket as they take on defending champions SunRisers Leeds from 2.15pm - SunRisers triumphed a year ago under their Northern Superchargers name - before the men play Manchester Super Giants from 6pm.
Rockets women have never won The Hundred before. In fact, this is their first final, after four group-stage exits and a defeat in the eliminator across the first five editions.
Rockets men, meanwhile, are one-time champions, prevailing in 2022 before their now-captain Billings began his love affair with this tournament and led Oval Invincibles to three successive Hundred titles, capped off with a win over Rockets in the 2025 final.
Billings 'very proud' of Hundred success
Invincibles let Billings go ahead of the auction as they began a new era under their MI London moniker, allowing Rockets to swoop for him. It has been an extremely shrewd acquisition, with Billings now on the brink of four in a row.
The Rockets skipper said: "It is impressive. It's something I'm very proud of and to have the opportunity to win another one, albeit with a different team, is very pleasing. You want to be in this stage of the tournament every year so it's not lost on me.
"The opportunity we have, I never take it for granted, playing here at the Home of Cricket. As a young kid growing up, you dream of occasions like this and playing at Lord's. As you get older, you start to appreciate these things a little more, I suppose.
"I think we might be one of the oldest teams in the competition. We have a lot of guys who have played in finals before, been successful in finals. We have had brilliant energy throughout this competition."
Billings' opposite number on Sunday will be Jos Buttler, who has stepped up to captain Super Giants since South Africa's Aiden Markram exited for personal reasons.
Buttler has stepped up with the bat, too - plundering 311 runs, including four fifties, and he cracked 33 off 20 balls in the eliminator win over SunRisers on Friday night.
Billings, whose side beat Super Giants by six wickets while amid a run of six straight wins during the group stage, said of his weekend opponents: "They're a very good team.
"Jos [Buttler] is arguably the best white-ball player ever to represent England and the leading record run-scorer ever in T20 cricket. They've got a lot of variety in their side as well. But I think it's all about us, to be honest.
"We topped the group. We beat them in Manchester, which definitely gives us confidence. We will absolutely respect them. But, as a team, winning the league stage gives us a lot of confidence. We've been the best team from a record point of view."
Can Gibson's SunRisers deny Gardner more Lord's glory?
There will definitely be a triumphant England captain in the men's final, either Billings or Buttler, and there could also be one in the women's.
SunRisers' Dani Gibson - one of only three English skippers in the women's competition this term, alongside London Spirit's Charlie Dean and MI London's Hollie Armitage - will be hoping to get the better of Rockets' Australian leader Ash Gardner.
Gibson was in the England team beaten by an Australian outfit containing Gardner in the Women's T20 World Cup final at Lord's in July.
Gardner also has fellow 2026 World Cup winners Kim Garth and Beth Mooney with her at Rockets, although there are members of that victorious squad in the SunRisers' ranks in Phoebe Litchfield and Annabel Sutherland, the leading run-scorers in the women's Hundred this term.
Gardner said: "There are definitely some fantastic memories here at Lord's. It's nice coming back to the same dressing room and hopefully that brings some good energy. Having a few Australians in the side helps because we know what big occasions require.
"Sunday is a new game and a different challenge but there are plenty of positive memories to draw on and confidence in the things we've done well throughout the season."
Gibson added of playing Rockets, who have England skipper Nat Sciver-Brunt in their line-up: "They've got some great names but I think every team has great names. It's just making sure that we prep well and play the conditions that we're going to get here.
"Adapt quickly, communicate well and enjoy playing."
Watch The Hundred finals, at Lord's, live from 2pm on Sunday on Sky Sports Cricket and Sky Sports Mix. The women's match between Trent Rockets and SunRisers Leeds starts at 2.15pm with the men's between Trent Rockets and Manchester Super Giants under way at 6pm. Stream cricket contract-free with NOW.
