Ireland medal hopeful Sanita Puspure won her women's single sculls quarter-final heat to reach the semi-finals at Tokyo 2020.
The Team Ireland rower started in Lane 4 against competitors from Hong Kong, Serbia, USA, China and Paraguay.
Fourth initially in the early stages of the race, Puspure finished strongly and overtook USA's Kara Kohler to win by 1.09 seconds and comfortably qualify for the semi-finals.
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"The start was messy again so I've to work on that," she told RTÉ Sport afterwards.
"I need to stay a bit more relaxed off the first few strokes. [I'm] too eager and then once you're tense you just can't move as quick and as smooth as you would want to and then it can be hard to pick it up from there.
"This is my first Olympic semi-final so that's a step forward from the last two Games. So I'm going to take it one race at a time."
Having fallen at this stage of the competition at both London 2012 and Rio 2016, Puspure admitted that it was in the back of her mind as she prepared for today's race.
"It was a little bit - is there a curse or something?! But it was good to get it done and a win is a win."
Aoife Casey and Margaret Cremen secured safe passage to the semi-finals in the women's lightweight double sculls after finishing third in Sunday's morning's six-boat repechage.
Having finished fifth in Saturday morning's heat, Casey and Cremen lined up in this morning's repechage alongside Austria, Vietnam, Russia, Switzerland and Guatemala.
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The Irish duo put themselves in a strong position early, sitting second behind the Swiss at the halfway mark.
While they had slipped behind Russia with 500m to go, the eventual third spot finish was enough to book their spot in the semi-final.
"It's surreal almost - we had a really good race today," Casey said speaking to RTÉ Sport.
"We definitely improved from our heat yesterday. [We're] really excited and it's one step closer."
Cremen added: "We're delighted to be here but we also want to perform really well also.
"It's been really chaotic," she said of the Olympic experience so far.
"In the village, in the build-up, the kit... it's a bit different to other regattas. We're trying to keep the focus as best we can on the racing. We're really enjoying the experience so far.
"The support from home goes a long way. I don't think people realise how much it means to us seeing all the photos and videos of people cheering us on.
"We can't wait to see them all when we get home."
The Cork pair weren't the only Irish competitors to navigate their way through a repechage on Sunday morning.
Earlier, Aileen Crowley and Monika Dukarska qualified for the semi-finals in the women's pair after a third-place finish in their repechage.
The Team Ireland rowers had missed out on automatic qualification in Saturday's heats but a top-three finish in the repechage offered a second chance to reach the penultimate round.
Starting in Lane 2 against counterparts from USA, China and Greece, Crowley and Dukarska made a strong start to lead after 500m.
But Greece closed in fast and surged to the front by the halfway mark at 1000m, before the USA also overtook the Irish pair.
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However, with China a significant distance behind in fourth place, Ireland qualified for the semi-finals with a third place finish in a time of 7:31.99, some 3.99 seconds off the Greek crew.
All three semi-finals have been moved from Tuesday to Wednesday, with racing suspended for the next two days due to expected inclement weather.
It was a more difficult morning for Ireland's men's double sculls duo Philip Doyle and Ronan Byrne, who failed to make it through their semi-final.
Doyle and Byrne qualified for the semi-finals via yesterday's repechage but were up against it in a powerful semi-final, with leading boats of France, Poland and Great Britain separating themselves from the remaining trio of New Zealand, Germany and Ireland.
European champions France overhauled Poland over the closing stretch to win the race, the latter pipping Team GB to second spot.
Ireland brought up the rear in the field of six and are now bound for the B final.
Looking ahead, tomorrow's regatta has been cancelled with the weather expected to turn in the area.
A typhoon is forecasted to land in Tokyo meaning that there will be no action on Monday. Three Irish crews will be in semi-final action on Tuesday - the women's and men's Lightweight Double, as well as the women's pair.
Sanita Puspure is due in the water again on Wednesday.
