Sienna Toohey Hits 1:05.97 100 BR To Clip Leisel Jones’ Age Record, Fastest Aussie Post-Supersuit

2026 AUSTRALIAN SWIMMING TRIALS

To kick off the second night of Australian Swimming Trials, 17-Year-Old Sienna Toohey put together a statement swim. The Albury native threw down a 1:05.97 100 breaststroke to break an iconic age record and become the fastest Australian in the post-supersuit era.

The 17-year-old age record previously belonged to all-time great Leisel Jones. She posted a 1:06.37 at the same age at the 2003 World Championships in Barcelona, which was a new world record at the time. Toohey had previously been nipping at that record’s heels when she went her previous lifetime best of 1:06.43 at Australia’s Age Championships in April. See the split comparison below.

Sienna Toohey,

2026 Australian Trials

Leisel Jones, 2003 World Championships Semi-Finals Sienna Toohey, 2026 Australian Age Championships
50 30.58 31.40 31.46
100 1:05.97(35.39) 1:06.37(34.97) 1:06.43(34.97)

Tonight, Toohey distinguished herself from her old best and 17-year-old Jones with a blistering first 50 of 30.58. This made her too quick to catch on the second 50. She now moves into third all time among Aussies, and she surpasses Chelsea Hodges as the fastest post-supersuit swimmer from the nation.

All-Time Australian Performers, Women’s 100 Breaststroke (LCM)

  1. Leisel Jones, 1:05.09 – 2006
  2. Sarah Katsoulis, 1:05.86 – 2009
  3. Sienna Toohey, 1:05.97 – 2026
  4. Chelsea Hodges, 1:05.99 – 2021
  5. Tarnee White, 1:06.04 – 2008

The swim also proves hopeful for Australia on the contemporary world stage. This season, she checks in as the 5th fastest performer. Among both Commonwealth and Pan Pac countries, which she has punched tickets for, she sits among the top three.

2025-2026 LCM Women 100 BREAST

AngharadGBR
Evans
04/19
1:04.96
2Tang
Qianting
CHN1:05.3611/12
3Satomi
Suzuki
JPN1:05.5309/14
4Benedetta
PILATO
ITA1:05.8006/07
5Sienna
Toohey
AUS1:05.9706/09
View Top 26»

A 1:05.97 100 breast would’ve qualified for the Paris 2024 and Singapore 2025 finals. Australia has not had an Olympic or Worlds qualifier in the event since 2019.

On the women’s medley relay front, if Toohey can replicate this speed, it places Australia as an even clearer world #2 behind the United States. At the 2025 World Championships, teh Aussies earned the silver, about three seconds behind the Americans and two seconds ahead of China with Ella Ramsay on breaststroke. Ramsay also had a big swim of 1:06.70 for runner-up tonight, which is a new best for the 21-year-old.

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Eduardo
5 days ago

Aussie needs a sub 56 butterfly and maybe they can get close to the yanks

PFA
5 days ago

Is she faster than Lydia Jacoby was at the same point or was Lydia already 1:04.9 at that point? Either might’ve just found a new potential star in the event.

Lisa
Reply to  PFA
5 days ago

I think Jacoby swim that 1:04 a few months after turning 17 to win gold.

GOATKeown
Reply to  PFA
5 days ago

Jacoby was 17 and 6 months when she went that time, Sienna is 17 and 3 months right now. So she won’t catch up in time.

In saying that, Jacoby was very bright for that one race and then flamed out very quickly . We want Sienna to have more staying power

Carlos
5 days ago

Sienna Toothey has a Big future

Kelsey
6 days ago

Just supports why she she should have swum the medley relay not Ramsay last year it was such a stupid decision by the coaches

GOATKeown
Reply to  Kelsey
6 days ago

To be fair, it absolutely would not have changed the outcome regardless

Kelsey
Reply to  GOATKeown
6 days ago

She was the top breaststroker. Plus relay start practice, getting used to relay swims at a big event all good reasons to have our top breaststroker swim. Otherwise could up like that men’s relay where the newbie went early one year.

Lisa
Reply to  Kelsey
5 days ago

My guess is that she was sick or didn’t have a speed on that week and that’s why the coach didn’t put her on the relay.
It wouldn’t change anything when Douglass also went 1:04.2

Robbos
Reply to  Lisa
5 days ago

It’s Walsh that no one else in the world can compete with that makes the US 4×1 med impossible to beat, yes Douglas plays is a big part too, but there are swimmers close to her.

Lisa
Reply to  Robbos
5 days ago

Correct me if I’m wrong but the only swimmers that pretty much closer to Douglass is Anna Elendt cause I think she went 1:04.9 and I thought the race was over as soon as Walsh went in.

Last edited 5 days ago by Lisa
David Toohey
Reply to  Kelsey
5 days ago

As I understand it, they rested Molly and Kaylee from that medley relay heat swim at the World Championships in 2025 due to their packed schedules, and they judged it not worth the risk of missing the final by resting the #1 ranked breaststroke swimmer, too.

I can’t remember which men’s relay team had just missed a final by resting one too many #1 ranked swimmers, so that would have weighed on their minds.

I think it’s academic anyway, they list her official record as having won the silver, even though she wasn’t on the podium to accept it. Was she awarded the silver via a jewellery box or something, instead of via the dais ceremony?

Personal Best
6 days ago

Awesome. Congrats on this achievement Sienna.

I recall Leisel’s 1:06.37 swim – it was a super performance at the time back when Leisel had yet to find her groove (she did not back up to win gold in the event that year).

It’s been a long time coming but nice to see Sienna achieve this and hopefully she finds success in whatever form.

VA Steve
6 days ago

What are the specific dates for the 2025-2026? This top 5 appears incomplete.(KD 1:05.27)

Last edited 6 days ago by VA Steve
Reply to  VA Steve
6 days ago

The 2025-26 season is Sept. 1, 2025 until August 31, 2026, so Douglass’ 1:05.27 from the 2025 World Championships last summer doesn’t apply.

VA Steve
Reply to  James Sutherland
6 days ago

Thanks.

64x25m.
6 days ago

comment image

Stephen J Thomas
Reply to  64x25m.
5 days ago

Not happy! All the togs were on the other side of the pool, she was looking to her mum and coaches. The direct shot off TV is just what she is all about 🙂

64x25m.
6 days ago

comment image

64x25m.
Reply to  64x25m.
6 days ago

(Thanks to Troyy.)