America's Cup 2021: INEOS Team UK complete incredible comeback to sweep challenger rivals in opening round 45 minutes ago Grant Chapman Sir Ben Ainslie and crew regroup during the America's Cup challenger series. Credit: Image - Photosport, video - TVNZ British maestro Sir Ben Ainslie has shown why he's regarded as one of the world's greatest sailors, leading INEOS Team UK to victories over their America's Cup rivals on opening day of challenger racing off Auckland. Seemingly - and sometimes literally - dead in the water during the pre-Christmas world series, the Brits have completed an incredible comeback to put their opponents - including Emirates Team NZ - on notice that they are serious contenders to lift the 'Auld Mug' for the first time. Drawn to face both NYYC American Magic and Luna Rossa Prada Pirelli on day one of Prada Cup competition, Ainsle quickly dismissed any thoughts he was out of his depth, dispatching the challenger favourites by more than minute, then the Challengers of Record by 28 seconds. please log in to view this image Best vantage spots to watch America's Cup World Series The four-time Olympic champion showed his tactical prowess by winning both starts and dominating the favoured righthand side of the course, revelling in the shadow of Devonport's North Head. Over the two races, he never trailled for a single second. Manoeuvres that seemed out of reach three weeks ago were suddenly executed without hitch, leaving his rivals wondering whether Sir Ben just might have been bluffing previously. None of this should have come as a huge surprise. Earlier this week, Team NZ boss Grant Dalton warned against dismissing the British and Ainslie detailed the myriad improvements his team had worked through the holidays to make on their boat Britannia. Today, he dedicated his success to those watching from the team base.