2023 WORLD AQUATICS CHAMPIONSHIPS
- July 23 to 30, 2023
- Fukuoka, Japan
- Marine Messe Fukuoka
- LCM (50m)
- Meet Central
- SwimSwam Preview Index
- Entry Book
- Live Results (Omega)
- Day 1 Prelims Live Recap
Yeah, Australian women’s sprint freestyle is just that good.
Leading off Australia’s 4×100 freestyle relay in the prelims of the 2023 World Championships, Shayna Jack posted a massive time of 52.28 to become the eighth-fastest performer in history and the top performer in the world by 0.2 seconds. However, she won’t be swimming the 100 free individually, as she placed third behind Emma McKeon and Mollie O’Callaghan at Australian trials earlier this year.
At trials this year, O’Callaghan won the 100 free in a time of 52.48, McKeon placed second in 52.52, and Jack took third with a 52.64.
All-Time Top Performers, Women’s 100 Freestyle:
- Sarah Sjostrom, Sweden — 51.71 (2017)
- Emma McKeon, Australia — 51.96 (2021)
- Cate Campbell, Australia — 52.03 (2018)
- Simone Manuel, United States — 52.04 (2019)
- Britta Steffen, Germany — 52.07 (2009)
- Siobhan Haughey, Hong Kong (2021)/Bronte Campbell, Australia (2018) — 52.27
- Shayna Jack, Australia — 52.28 (2023)
Jack dropped 0.32 seconds from her previous personal best time of 52.60, which was clocked at Australian trials in 2022. She matched the first 50 of her previous best on Sunday morning, but improved 0.38 seconds on her last 50.
Splits Comparison:
| Shayna Jack, 2023 World Championships | Shayna Jack, 2022 Australian Trials | |
| 50m | 25.16 | 25.14 |
| 100m | 27.12 | 27.50 |
| Total | 52.28 | 52.60 |
Although Jack will not be swimming the 100 free individually at Worlds, she will be racing the 50 free, where she is seeded fifth overall with her best time of 24.14. She had the opportunity to race the 100 free individually at the 2022 World Championships, but had to drop out of the event because she hurt her hand mid-meet.
Australia qualified for the final of the women’s 4×100 free as the top seed by nearly two seconds.
I’m all in for Australia to win this, but I think Jack almost certainly adds if she leads off tonight. Really hope she doesn’t, but 52.28 is a massive swim somewhat out of nowhere and I’m not certain she can replicate it.
I have been soooo wrong lololol.
I’m most excited for what this means for her 200. Her dropping a 1:54 flying start would really shut the door on the US
100% she’ll be in 4×2
I think she just messed up her heat swim at trials and then just went through the motions in the B final.
man if everything goes right, they’re looking at a 7:36 and potentially dipping into the 7:35 range too. I wonder how many countries you’d have to combine to field a team that could beat that
Is Shayna Jack the one who was banned for doping for two years? Or do I remember wrong?
She won’t have an individual 4×100 swim here but she’ll have plenty of 100s and likely at least one 200 in relays given her show of form already.
It makes the MOC/McKeown/McKeon/Jack medley combo much more of an option.
The problem with that relay is MOCs back (relative to Kaylee), not Shayna’s free.
And Kaylee not being that much faster than Harkin.
I think the theoretical relay always hinges on the idea Kaylee is capable of significantly faster than she has ever been due to it being at a target meet.
I’ve never bought into it much personally.
On first thought, after prelims, Jack should lead off the final tonight. However, O’Callaghan’s prior relay splits have never (IMO) lived up to her individual performances. Besides her 52.03 split in the mixed 400m free relay at 2022 WC, the average difference in her flat starts and relay legs is roughly only .2 of a second. After Jack’s swim this morning, could she split a 51 high on 3rd or anchor? So, thoughts…who should lead off the Aussie relay? Jack or O’Callaghan?
Jack, MOC, harris, mckeon
swap MOC and harris
They’ve actually gone with Mollie on lead off. Hope Shayna’s been practicing relay exchanges.
O’CALLAGHAN Mollie
JACK Shayna
HARRIS Meg
McKEON Emma
https://www.omegatiming.com/File/00011600010201F70104FFFFFFFFFF00.pdf
All of Jack’s splits last year were equal to or slower than her flat start.
MOC 52.2 Harris 52.6 McKeon 52.4 , Jack 51.9
McKeon will be much faster than 52.4 with a relay changeover.
Amazing that they were all 2-4 tenths faster than these predictions
Jack