Great Chesapeake Bay 4.4 Mile Swim & 1 Mile Bay Challenge

Sun June 9, 2024 Stevensville Libby's Coastal Kitchen, MD 21666 US


Great Chesapeake 4.4 Mile Bay Swim

$350 9:30AM EDT - 3:30PM EDT Registration ends December 14, 2023 at 11:59pm EST
Open to ages 13 - 99.

Great Chesapeake 1 Mile Bay Challenge

$75 8:30AM EDT - 10:30AM EDT Registration ends June 1, 2024 at 11:59pm EDT


Libby's Coastal Kitchen (Formerly Hemingways)
357 Pier One Road-
Stevensville Libby's Coastal Kitchen, MD US 21666


We are excited to announce the return of the Great Chesapeake Bay Swim for 2024!!!! You will find one site this year ( with all of your information, and an easy new address for any questions ( 

Race Day is June 9th, 2024, with an 9:30am start time for the 4.4 Mile Swim. We are currently planning on having the 1 Mile Swim begin at 8:30am, so that we can have an awards ceremony earlier for them. This is subject to final approval. 

Don't forget, our newly designed site ( and our email of are your sources for all of your up to date information!!!




Don't forget to follow us on Facebook at !!


Round 1 Lottery Winners!!!  

We have 169 swimmers, who have completed more than 15 swims with us, already registered, so this brings our number up to 269. We have plenty of room left in the lottery. Next Lottery drawing will be December 1st at noon. 

Congratulations to:
Elgin Akarsoy
Norman Albert
Dominic Alleva
Jennifer Anthony
Colin Ault
Tim Beatty
Margaret Bergamini
Ellsworth Bergan
Jennifer Bianco
Karen Bisnett
Ingrid Bon
Michael Brant
Tiffany Brennan
Colleen Bruce
John Buckman
Melissa Burroughs
Brad Burton
Heather Cassidy
Amy Charley
Eric Christensen
James Clifford
Kathleen Coggshall
Tiffany Collins
Troy Conran
Donna Corey
Luke Corey
Charles Cummings
Leo Dilling
Gregory Diven
Griffin Diven
Christy Donley
Catherine Doud
Matt Durante
Jeremy Dwyer
Therese Dymek
Taylor Earley
Kara Erskine
Colin Fenster
Frank Ferraro
Chris Gellene
Amy Grammas
Amanda Gretz
Grace Hansen
Marc Hartstein
Don Haut
Alison Headley
Grady Hough
Carly Hunt
Doug Irminger
Jay Jacobs
Donny James
Jeff Jones
Jordan Kaplan
Elizabeth Karn
Austin Kenny
Kimberly Kramer
Bart Lane
Maggie Langford
Amber Larose
Christina Leu
Suzanne Majewski
Richard Marx
Stephen Mazzola
Kyle Mcavoy
James Mcfeeters
Julie Minner
Steven Muchow
Katie O'hara
Chad Onken
Cayla Otto
Gailynn Petry
Denise Priddy
Sarah Rogstad
Jeff Rommel
Jennifer Royer
Michael Russiello
John Schlegel
Jane Schmidt
Mollie Schmitz
Bradd Schwichtenberg
Scott Suess
Jeff Thibodeau
Sophie Thomas
Rebecca Thompson
Anna Thormann
Stephen Tosini
Anna Vesotsky
Ray Visconti Iii
Juri Von Bonsdorff
Gretchen Weinbach
Joe Weinstein
Jim Welkos
Steven White
Paris Wilson
Sarah Woodman
Sylvia Woods
Lucas Wright
Rob Zakrzewski
Jennifer Zhao




Race Contact Info

If you have any questions about this race, click the button below.

RJA Perseverance Award

RJA Perseverance Award
The third annual Perseverance Award, sponsored by the Robert J. Astheimer Memorial Foundation, will be presented at this year's GCBS.

The Award will recognize one or more individuals who have overcome a physical, mental or emotional challenge to enable a personal achievement and/or to make significant contributions to family, community, or country.

The award is open to swimmers and their family members, GCBS organizers and supporters. Nominations of no more than two pages should be sent to the Foundation Director, JoAnn Milliken, at, by April 30, 2024. Nominations will be reviewed by the Foundation's Board of Directors. The Perseverance Award comes with an honorarium of $1000. For more information about Bob Astheimer and the foundation, please visit

Race Day Splits

Thank you to our friends over at Crossing Currents Aquatics for putting together this amazing infographic

Pay attention to the 100 yard times. These will help you to judge where to seed yourself for the swim start this year!


Geek out on distances

For the 1 Mile swim.... 

All buoys remain on your RIGHT hand side. Clockwise swim

Leg 1 of the swim -750 yards

Leg 2 of the swim - 440 yards

Leg 3 of the swim - 580 yards


4.4 Mile Swim  (approximate locations of Mile locations) 

From the Beach to the Bridge - @430 yards

Right after the curve in the bridge - 1 Mile Mark

After the first set of overhead rails on Eastbound Bridge - Mile 2

Right around the Start of the second set of overhead rails on Eastbound Bridge

Right after you cross from under the Bridge (Almost Done!!!) - Mile 4

The last stretch is ROUGHLY 700 yards to the finish, and you will find it gets shallow as you get near closer to the end. 


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