Oldest, Youngest, Zodiacs, and Birthday Twins on the 2024 US Olympic Swim Team

By Braden Keith on SwimSwam

Luke Hobson and Chris Guiliano are not twins, but they do share a birthday! Both swimmers were born in June 25, 2003, marking a momentous day in the history of American middle-distance swimming as the two male representatives on the US Olympic Swim Team for the Paris 2024 Games.

Hobson and Guiliano are a demonstration of the birthday paradox, where if you gather just 23 people, there is already a greater than 50% chance of at least two sharing a birthday (though that accounts for only the month and date, not the year). At over twice as many, 48 including open water swimmers, the odds climb even higher – about a 95% chance.

Overall, they are part of a youth trend in American men’s swimming. Perhaps a bit obscured by a few veterans on the team like 30+ year olds Nic Fink and Chase Kalisz, most of the Olympic Swim Team this year is under the age of 23.

All ages based on the date of the opening ceremony, July 26, 2024

Means & Medians

The average age of the whole team is 23 years, 130 days
The average age of the men’s team is 23 years, 261 days, which is the youngest men’s team we’ve seen in a long time (thanks in part to the first two high schoolers to qualify since Michael Phelps). In 2021, the average age was 24 years and 87 days; in 2012, the team was 26 years and 96 days old on average, with a group of older swimmers (Held and Murphy are 29, Kalisz and Fink are 30 and 31, respectively) dragging the average up.
The median of the men’s team is 23 years, 28 days
The average age of the women’s team is 22 years, 288 days. The women’s team’s average age has stayed remarkably stable; while this is slightly older than all of the teams we’ve seen since 2012, all of the teams have averaged about 22 years.
The median of the women’s team is similar to the mean at 22 years, 167 days

Zodiac Signs

In a trend that has happened way too often to be a coincidence, the two most common zodiac signs on the US team are Pisces (9 swimmers) and Aquarius (7 swimmers), both water signs. Pisces was the most common zodiac sign in 2012 and the second-most common in 2016 (behind Leo).

Zodiac Signs

Aries
0

Taurus
2

Gemini
0

Cancer
5

Leo
4

Virgo
1

Libra
5

Scorpio
6

Sagittarius
4

Capricorn
5

Aquarius
7

Pisces
9

There is a pretty consistent distribution of birthdays throughout the year (though nobody on the team was born in April)

Month

January
7

February
6

March
6

April
0

May
2

June
3

July
3

August
4

September
1

October
6

November
4

December
6

In another “what is going on here?” scenario, for the second straight Olympics, Wednesday was the most common day of the week for US Olympic Swimmers to be born.

Day of the Week

Sunday
5

Monday
7

Tuesday
5

Wednesday
11

Thursday
6

Friday
4

Saturday
10

Holiday Babies

Katie Ledecky will again bring the luck of St. Patrick to Team USA – her March 17th birthday is celebrated around the world as St. Patrick’s Day.

Shaine Casas was a Christmas baby, having been born on December 25, 1999.

There are

Oldest to Youngest

At 31 years and 23 days, Nic Fink is 23 days younger than Allison Schmitt was at the start of the 2021 Olympics. Schmitt was the oldest member of that year’s team.

Simone Manuel at 27 years, 358 days is the oldest member of this year’s women’s team – a significant shift from where Schmitt carried that torch in 2021.

Claire Weinstein and Thomas Heilman, both 17 and born about a month apart, are the youngest members of Team USA for the Paris Olympics. They are both almost two years older than Katie Grimes was at the 2021 Olympics where she was the youngest swimmer at 15 years, 190 days.

Swimmer
Birthday
Age at Start of Olympics
Zodiac Sign

Nic Fink
7/3/1993
31 years, 23 days
Cancer

Chase Kalisz
3/7/1994
30 years, 141 days
Pisces

Ryan Held
6/27/1995
29 years, 29 days
Cancer

Ryan Murphy
7/2/1995
29 years, 24 days
Cancer

Blake Pieroni
11/15/1995
28 years, 254 days
Scorpio

Simone Manuel
8/2/1996
27 years, 358 days
Leo

Caeleb Dressel
8/16/1996
27 years, 344 days
Leo

Abbey Weitzeil
12/3/1996
27 years, 235 days
Sagittarius

Lilly King
2/10/1997
27 years, 166 days
Aquarius

Katie Ledecky
3/17/1997
27 years, 131 days
Pisces

Charlie Swanson
2/20/1998
26 years, 156 days
Pisces

Erika Connolly
8/27/1998
25 years, 333 days
Virgo

Paige Madden
10/22/1998
25 years, 277 days
Libra

Bobby Finke
11/6/1999
24 years, 263 days
Scorpio

Shaine Casas
12/25/1999
24 years, 214 days
Capricorn

Drew Kibler
3/9/2000
24 years, 139 days
Pisces

Kieran Smith
5/20/2000
24 years, 67 days
Taurus

Brooks Curry
1/22/2001
23 years, 185 days
Aquarius

Hunter Armstrong
1/24/2001
23 years, 183 days
Aquarius

Katharine Berkoff
1/28/2001
23 years, 179 days
Aquarius

Ivan Puskovitch
2/28/2001
23 years, 148 days
Pisces

Alex Walsh
7/31/2001
22 years, 360 days
Leo

Carson Foster
10/26/2001
22 years, 273 days
Scorpio

David Johnston
10/28/2001
22 years, 271 days
Scorpio

Kate Douglass
11/17/2001
22 years, 251 days
Scorpio

Emma Weyant
12/24/2001
22 years, 214 days
Capricorn

Regan Smith
2/9/2002
22 years, 167 days
Aquarius

Matt King
2/19/2002
22 years, 157 days
Pisces

Luca Urlando
3/16/2002
22 years, 132 days
Pisces

Phoebe Bacon
8/12/2002
21 years, 348 days
Leo

Anna Peplowski
9/25/2002
21 years, 304 days
Libra

Matt Fallon
10/3/2002
21 years, 296 days
Libra

Josh Matheny
10/16/2002
21 years, 283 days
Libra

Torri Huske
12/7/2002
21 years, 231 days
Sagittarius

Jack Alexy
1/19/2003
21 years, 188 days
Capricorn

Gretchen Walsh
1/29/2003
21 years, 178 days
Aquarius

Mariah Denigan
5/3/2003
21 years, 84 days
Taurus

Chris Guiliano
6/25/2003
21 years, 31 days
Cancer

Luke Hobson
6/25/2003
21 years, 31 days
Cancer

Emma Weber
1/13/2004
20 years, 195 days
Capricorn

Keaton Jones
10/13/2004
19 years, 286 days
Libra

Erin Gemmell
12/2/2004
19 years, 236 days
Sagittarius

Aaron Shackell
12/10/2005
18 years, 228 days
Sagittarius

Katie Grimes
1/8/2006
18 years, 199 days
Capricorn

Luke Whitlock
3/8/2006
18 years, 140 days
Pisces

Alex Shackell
11/13/2006
17 years, 255 days
Scorpio

Thomas Heilman
2/7/2007
17 years, 169 days
Aquarius

Claire Weinstein
3/1/2007
17 years, 147 days
Pisces

Read the full story on SwimSwam: Oldest, Youngest, Zodiacs, and Birthday Twins on the 2024 US Olympic Swim Team