2025 World Championships
- July 27 – August 3, 2025 (pool swimming)
- Singapore, Singapore
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- LCM (50m)
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The only event on the World Championship schedule that is not currently scheduled to be contested at the Olympics is the Mixed 4×100 Free Relay. The relay has often been disregarded by some nations, and by others, as an opportunity to rest some of their stars and give others on the team a chance to shine. For instance, in 2023, China Pan Zhanle did not have this event included in his meet schedule, which was published before the start of the meet, yet he did make an appearance in 2024, with the Chinese taking the gold, in part due to his lead-off split.
As it is not an Olympic event, few nations have seed times, and in fact, 17 of the 36 do not, leading to some very interesting early heat swims. The Neutral Athlete B team were in an outside lane of a non-circled seeded prelim heat and went on to win the event, and that situation could very likely happen again.
The first heat features 2023 7th place finishers Japan, who take to the water in lane 6, with a team comprised of Tatsuya Murasa, Taikan Tanaka, Nagisa Ikemoto, Mizuki Hirai. Greece, likely their biggest competition, is seeded to swim in lane 2.
The second (and still unseeded heat) sees the Netherlands, Australia, and the USA in lanes 2,3,4, and Canada, China, and the Neutral Athlete B Team in lanes 6,7,8. Sandwiched between the two groups of medal contenders are the team from the Faroe Islands. The Faroe Islands are a self-governing part of Denmark located in the North Sea between Iceland and Scotland, and have a population of around 55,000.
The USA have opted for a prelim team of Chris Guiliano, Jonny Kulow, Simone Manuel, Kate Douglass all of whom seem to have avoided the more severe illness issues. This likely leaves Jack Alexy, Partrick Sammon and perhaps Gretchen Walsh and Torri Huske to make a full swap.
In Fukuoka, the Australians set a world record, recording a new mark of 3:18.83 in the final, with the team of Jack Cartwright, Kyle Chalmers, Shayna Jack and Mollie O’Callaghan This morning the Aussie have opted to kick off their WR defense with the squad of Kai Taylor, Maximillian Giuliani, Hannah Casey, Milla Jansen.
Countering them are the 2024 World Champions, the Chinese, who have selected Chen Juner, Wang Haoyu, Yu Yiting, Yang Wenwen.
Hungary and Poland lead the circle seeded heats, as each of these nations recorded times at the 2024 European Championships which fell within the qualifying period for this meet.
Heat 1
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Lane 2 – GRE: Dimitrios Markos, Konstantinos Emmanouil Stamou, Artemis Vasilaki, Nikoletta Pavlopoulou
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Lane 3 – CPV: Jose Tati, Jayla Pina, Kaila Dacruz, Rohan Shearer
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Lane 4 – NMA: Michael Miller, Piper Raho, Kouki Cerezo Watanabe, Maria Corazon Ayson Batallones
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Lane 5 – SAM: Paige Schendelaar-Kemp, Johann Stickland, Kaiya Brown, Kokoro Frost
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Lane 6 – JPN: Tatsuya Murasa, Taikan Tanaka, Nagisa Ikemoto, Mizuki Hirai
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Lane 7 – ISL: Birnir Freyr Halfdanarson, Gudmundur Leo Rafnsson, Snaefridur Sol Jorunnardottir, Johanna Elin Gudmundsdottir
Heat 2
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Lane 0 – MDV: Amna Thazkiyah Mirsaad, Meral Ayn Latheef, Mohamed Aan Hussain, Mohamed Rihan Shiham
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Lane 1 – MAC: Man Hou Chao, Chi Chong Lam, Weng Chi Cheang, Pui Lam Chen
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Lane 2 – NED: Renzo Tjon-A-Joe, Sean Niewold, Tessa Giele, Marrit Steenbergen
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Lane 3 – AUS: Kai Taylor, Maximillian Giuliani, Hannah Casey, Milla Jansen
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Lane 4 – USA: Chris Guiliano, Jonny Kulow, Simone Manuel, Kate Douglass
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Lane 5 – FRO: Isak Brisenfeldt, Liggjas Joensen, Bjarta I Lagabo, Lea Hojsted
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Lane 6 – CAN: Ruslan Gaziev, Antoine Sauve, Brooklyn Douthwright, Mary-Sophie Harvey
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Lane 7 – CHN: Chen Juner, Wang Haoyu, Yu Yiting, Yang Wenwen
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Lane 8 – NAB: Vladislav Grinev, Ivan Girev, Alina Gaifutdinova, Milana Stepanova
Heat 3
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Lane 2 – RSA: Matthew Sates, Matthew Caldwell, Olivia Nel, Aimee Canny
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Lane 3 – SWE: Robin Hanson, Elias Persson, Louise Hansson, Sofia Aastedt
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Lane 4 – POL: Kamil Sieradzki, Karol Ostrowski, Zuzanna Famulok, Wiktoria Gusc
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Lane 5 – GBR: Jacob Whittle, Jacob Mills, Freya Anderson, Eva Okaro
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Lane 6 – DEN: Frederik Lentz, Oliver Sogaard-Andersen, Elisabeth Ebbesen, Schastine Tabor
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Lane 7 – GHA: Harry Stacey, Abeku Jackson, Nubia Adjei, Joselle Mensah
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Lane 8 – KEN: Stephen Nyoike, Haniel Kudwoli, Imara Bella Patricia Thorpe, Sara Mose
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Lane 9 – DOM: Josue Dominguez, Elizabeth Jimenez, Maria Alejandra Fernandez, Javier Nunez
Heat 4
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Lane 0 – MEX: Jorge Iga, Andres Dupont Cabrera, Miranda Grana Perez, Celia Pulido Ortiz
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Lane 1 – UGA: Jesse Ssuubi Ssengonzi, Kirabo Namutebi, Gloria Anna Muzito, Tendo Mukalazi
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Lane 2 – ESP: Sergio de Celis Montalban, Luca Hoek le Guenedal, Maria Daza Garcia, Carmen Weiler Sastre
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Lane 3 – ITA: Manuel Frigo, Lorenzo Zazzeri, Chiara Tarantino, Emma Virginia Menicucci
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Lane 4 – HUN: Nandor Nemeth, Hubert Kos, Nikolett Padar, Lilla Minna Abraham
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Lane 5 – GER: Josha Salchow, Rafael Miroslaw, Nina Holt, Nina Jazy
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Lane 6 – FRA: Rafael Fente-Damers, Yann le Goff, Albane Cachot, Marie Wattel
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Lane 7 – HKG: Hayden Kwan, Yik Ki Tsui, Sum Yiu Li, Lai Wa Ng
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Lane 8 – PNG: Josh Tarere, Nathaniel Noka, Jhnayali Tokome-Garap, Joanna Chen
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Lane 9 – ARU: Mikel Schreuders, Patrick Groters, Avigayle Tromp, Elisabeth Timmer

Will they go with right 4 with wrong order..
Hah hah.. I love these kind of predictions ..
Huske , sammon, Douglass and Alexy..
Nice.
Kate D one of just 2 US athletes who did not have any illness to deal with. Put her in a bubble for 36 hrs
The other Ledecky? I guess we’re lucky our two biggest stars stayed above the fray
where did you get that from? if thats true basically half the team got sick in thailand and the rest got sick in singapore.
im assuming the first group are the ppl performing better
Yes, Kate Douglass and Shane Casas.
Douglass better be in the final for this
Finally got it right
Kate is such a versatile swimmer is acutally insane how impressive her range is. Winning the 200 breast last night in 2nd fastest time ever, then earlier in the meet a 51 split in the 4×100 free, and just missing out a place in tmrw nights 50 fly finals, with only 10 mins rest before the semi tonight. She is a marvel.
When shes so good in all the strokes, it makes me wonder how fast she can go in the 200im and 400ims.
She is a 2x 200 IM Olympic medalist…
I know that, but i feel like she can go even faster! Hows her 400 im?
Doesn’t seem like many countries are taking this race too seriously. Last remaining non-Olympic event on the schedule.
Well there is literally no strategy to be had in this race. Just 2 men, 2 women, in that order. At least with the medley you’re weighing differences between men and women in strokes.
It can be any order..
Kate’s a real team player being (one of) the US’s biggest stars and still swimming two prelims relays
pretty interesting, i feel like they have enough firepower to rest kate for finals. i guess bc her races are over it should be fine?
Maybe she’s the answer to the women’s medley morning fly leg with Manuel on free. Kidding (kind of)
Curzan can swim fly
Maybe have Douglass and Smith go morning and night but on different strokes. Let Smith swim fly then back and Douglass swim free then breast. I wonder if any medley relay medalists have ever won swimming different strokes in heats and finals. The American women could perform well with two members switching strokes.
Huske and Walsh in the final