We'll leave Kiwi Lewis Clareburt to another file, as the only swimmer on day 4 here in Glasgow who managed to halt Australia's gold rush and grab of as much other metal as they could muster.

Dolphin dominance began with victory for Jenna Forrester in the 400IM two days after 200 back gold, before the Green and Gold shoal celebrated its first sweep of the day, Meg Harris topping the 100m freestyle, Alex Perkins following through with victory in the 100m butterfly to add to her day 2 dash triumph, and then Sam Williamson making it a breaststroke double by adding the dash crown to his 100m title.

Clareburt was next to ride the golden wave, though even as he did, the Australian based all-rounder shared the podium with ... two Aussies:

Clareburt Joins Mosse & Le Clos In Club Of 200 ’Fly Crown Keepers

“I knew from four years ago the last 50m is anyone’s race, so had the energy at the right time, and to turn around and see the number one next to your name on the board is a pretty special feeling.” - Lewis Clareburt

State Of Swimming +Craig Lord

"I knew from four years ago the last 50m is anyone's race, so had the energy at the right time, and to turn around and see the number one next to your name on the board is a pretty special feeling." - Lewis Clareburt

There was never any doubt how the Aussie rout minus one would end: in triumph for the Dolphin sorority of Lani Pallister, Hannah Casey, Inez Miller and Mollie O'Callaghan.

And, none of it required record times, no Games record fell, though one was established, the 800m free for men raced in Commonwealth waters for the first time. After four nights, Australia's swimmers now boast 23 gold medals, with Short , the holder of that inaugural standard, saying

"We're probably a bit fortunate they're split up into their different countries rather than GB, but we still get the job done regardless."

Below, a little more meat on the bones of a session I'm filing on after the rest of my work is done. So, here we go, the sweeps first, the relay last:

Men's 800m freestyle

Sam Short put the inaugural 800m free crown on his head in 7:39.81, the spoils to teammates Ben Goedemans and Matt Galea in the second Dolphin sweep of the day ahead of Olympic champion Dan Wiffen of Northern Ireland.

The 400m title in his vault on day 1, 2023 World 400 champion Short is now well into a quest to clean-up a triple of individual freestyle golds, 400-1500. He's also in the 200, but that one is best not called until a battle of the best 200m Brits in the business call it, with whoever else is thinking of muscling in for a tilt at the title.

Women's 100m freestyle

Meg Harris grabbed teammate Mollie O'Callaghan's 2022 crown from her early in a session that would see O'Callaghan celebrate victory in another event, with mates in the 4x200m free.

Attempting to defend her blue riband title, five-time Olympic champion O'Callaghan could not break 53sec, and in 52.90, Harris put the prospect of a 50-100 double squarely on the map at the Tollcross Tussle. The bronze went to Shayna Jack, for whom the meet is a farewell to her elite racing days as a Dolphin.

That sealed a sibling podium celebration, Jack's brother Jamie having also claimed solo and relay medals this week.

The final left questions concerning how much O'Callaghan's latest health scare, a back injury, will continue to plague the 22-year-old Olympic 200m freestyle champion. And - will it see her now withdraw from the Pan Pacific Championships in Irvine next month? It won't be long before we know. Her take on things below in the relay summary.

Meanwhile, Harris, 24, looked like she could hardly believe her victory. Asked about her improved confidence, she said:

"I still have my moments. But as the years go on, there's a lot of things that come up that I think, 'Oh, maybe there is a chance that I can be better than this!' I mean, it's pretty incredible. I've never done that before. I've never been in that position, so hopefully this is just the start of my journey."

Women's 400m medley

Surprise winner off the 200m back two days ago, Jenna Forrester doubled her tally of titles in a career best of 4:31.19 seconds. England's European junior champion and championships record setter in Munich two weeks ago, Amelie Smith improved yet again, for silver in 4:33.70 (a file on the 16-year-old to follow - here's a piece I wrote for The Times), while bronze went to another Dolphin, Ella Ramsay, in 4:37.12.

Forrester surged ahead of the opening butterfly and then extended her lead on back in her new winning stroke. Almost five seconds down on Forrester's pace and less than a stroke ahead of more Olympian rivals, the two Ellas, Jansen of Canada, and Ramsay of Australia, Smith might have been unnerved by a deficit she has not known in junior waters.

Rather, she streamlined off the wall into breaststroke, locked on to the target ahead, and chased her down. By the close of the third stroke, she'd halved the gap to 2.4sec. Closer than that, Forrester would not let her get. The race stayed there, until the clocks stopped 2.51 apart, Ramsay next in, Jansen locked out in 4:39.12.

Men's 50m breaststroke

Sam Williamson, already champion in the 100m, overturned the applecart once more to nail the sprint double in 26.50, the crown flipped on to his head from that of the greatest sprint breaststroke ace in history, Adam Peaty.

The Englishman made it a double too: twice the bronze medallist behind Williamson, the silver in the dash going to South African Michael Houlie, 0.27 behind gold, and 0.17 ahead of Ramsay-Peaty, the 50, 100m world record holder who's heights no-one has yet come anywhere seriously near since 2017 (50) and 2019 (100).

Just a year after he feared he might not walk again following a training accident that ripped his knee apart, Williamson was in tears as he said:

"It's been more like a bit of a horror movie for the last 14 months, but the last four days have been a fairytale."

Women's 100m butterfly

Alex Perkins celebrated her 26th birthday with a fourth gold medal of the meet in as many days: the 100 'fly title joined the dash crown in her pantheon in 56.38. The silver went to Scotland's Keanna Macinnes 0.95sec adrift, with bronze to Erin Gallagher of South Africa just 0.096sec further away and 0.01sec ahead of Australian Brittany Casteluzzo.

Said Perkins:

"I always got a 100 fly final on my birthday no matter what competition, it seems like - and this is the first time I've won. It's awesome."

Women's 4x200m freestyle

The relay spoke for itself: an Aussie wipeout almost 2sec per leg faster than nearest contender England, with New Zealand's quartet taking bronze. Splits below the result with snapshot - and what Mollie O'Callaghan had to say:

Splits

Lani PALLISTER 1:55.13
Hannah CASEY 1:55.43
Inez MILLER 1:55.78
Mollie O'CALLAGHAN 1:56.19

Freya COLBERT 1:55.98
Abbie WOOD 1:58.15
Leah SCHLOSSHAN 1:58.22
Freya ANDERSON 1:57.75

Erika FAIRWEATHER 1:55.92
Caitlin DEANS 1:58.12
Eve THOMAS 1:59.57
Milana TAPPER 1:58.33

O'Callaghan admitted that she had not felt like herself, even when winning the 200m free, but was cagey about any future re-evaluation of her plans.

"That's for my team and I. I've opened up quite a bit, but there's a point where I just keep that all to my team. I just very much trust my team and my support team. I very, very much value their input in my rehab, and I've done modifications this far.

"I've really learned so much about myself off the modifications and rehabbing at the same time and racing. I think I've done very well considering, and I'm pretty proud of myself. I'm just so happy. Look, I wasn't meant to be here ... Meg absolutely killed it."

More to come, and more gold for Australia, too, no doubt. On day 4, Kyle Chalmers moved closer to the 10th gold medal that would take him past Ian Thorpe as the most successful Australian male swimmer ever at the Games as he qualified fastest for the 100m freestyle final.