It was an up and down day for Charlotte Dobson and Dun Laoghaire's Saskia Tidey to complete 49erFX fleet racing.
One time fleet leader, the Scottish-Irish duo excelled in this week's stronger conditions but have had a torrid couple of days in Enoshima's light stuff.
They have seen their overall lead eroded and scoring 15-4-18 today means they go into the medal race in fifth, 11 points off the top spot, eight points off the podium.
Royal Irish's Tidey, although sailing for Team GB in Tokyo, sailed for Ireland in Rio in 2016 then left the Irish team because of a lack of opportunities for her to pursue her career at home. As such, she is the last Irish sailing interest in Tokyo for Monday's medal race.
Tina Lutz and Susann Beucke (GER) sailed around all the potholes and landmines on the 49erFX course to come through with scores of 7,3,3. This lifts the Germans to third overall, three points off the lead shared by two high-class teams.
Holding top spot is the double World Champions Annemiek Bekkering and Annette Duetz (NED) who sit on equal points with reigning Olympic Champions Martine Grael and Kahena Kunze (BRA).
The reigning World Champions from Spain, Tamara Echegoyen and Paula Barcelo, had a difficult day in the lighter breeze and have dropped to fourth overall, but still only seven points off the lead.
Like the 49er, this is going to be a tense Medal Race on Monday afternoon, as Beucke acknowledged today. “I think we went a bit too conservative into the regatta and kind of realised we have got to be very aggressive until the end. That's what we did today. And I think that's what we're going to do in the Medal Race as well, because it's all about coming home with the medal or nothing. It's going to be exciting.”
Racing kicks off at 6.33am BST on Monday