Australia added three more boats to its Olympic rowing team to end a successful final Games qualification campaign in Poland.

The former St Patrick's College rower and his teammates finished first in the men's fours last night in a time of 6 minutes 5.85 seconds.

Needing a top-two finish in the final, it was Marburg's last chance to qualify for the Olympic team after competing at regattas in Australia, Switzerland, Italy and finally Poznan, Poland.

The men's four crew led from start to finish to beat home China and Canada.

Marburg, Francis Hegerty, Cameron McKenzie-McHarg and Terrence Alfred rowed with precision throughout to cross the line 1.3 seconds ahead of the Chinese.

Marburg said he was always confident that he and his teammates would make it through.

The men's fours team was determined to recognise its potential after missing out on qualification last year by .28 seconds.

Single sculler Pippa Savage started the ball rolling nicely by winning the first final of the Poznan regatta before the women's heavyweight double sculls crew and men's four qualified with top-two finishes.

Cate Sens and Sonia Mills led for the bulk of the double sculls race before Ukraine motored home to win in seven minutes 18.98 seconds.

Needing a top-two finish to book a place in Beijing, Sens and Mills (7:22.03) were virtually assured of a Games start when they led with 500m left and were well ahead of third-placed Poland.