The Netherlands won a thrilling women's Eight repechage at Eton Dorney today to qualify for the Olympic final, while the men's Four final line-up was also decided.
They held off a strong challenge from Romania to take the win as Australia came in third.
Great Britain finished fourth, a length behind Australia, to claim the last available place in Thursday's final.
The Great Britain men's Lightweight Four underlined their Olympic gold medal potential with a commanding semi-final victory.
They unleashed a powerful sprint for the line to surge clear of Switzerland in the final 500m.
The
British crew won in 5:59.68 seconds, just quicker than the time posted
by chief gold medal rivals Denmark in winning the second semi-final.
Elsewhere,
the men's Double Scull of Bill Lucas and Sam Townsend finished third in
their semi-final behind the Slovenian crew, who were Olympic champions
12 years ago, and Lithuania.
There was a shock in the first heat
with reigning Olympic champions Australia and world silver medallists
Germany failing to qualify.
I feel in very good form, but I've got to keep a lid on it, I don't want to get too over excited or anything else
Alan Campbell
Alan
Campbell moved smoothly into the semi-finals of the Single Sculls with a
length victory over Germany's Marcel Hacker to underline further Great
Britain podium credentials.
He said: 'I feel in very good form,
but I've got to keep a lid on it, I don't want to get too over excited
or anything else and when it comes to the final the gloves are off and
we'll go out fighting.'
New Zealand's Mahe Drysdale remains the
favourite to add Olympic gold to his five world titles and he won the
first heat, ahead of Belgium's Tim Maeyens.
Lassi Karonen of
Sweden is hitting form at the right time and he won the third
quarter-final, while Ondrej Synek won his heat with reigning Olympic
champion Olaf Tufte scraping through in third place.