Pat Gallant-Charette - Lake Zurich

Zurich to Rapperswil

26.4 km (16.4 miles)

13 hours, 10 minutes on 2 September 2023

Observed and documented by Martyn Webster



  • Name: Pat Gallant-Charette
  • Gender: female
  • Age on swim date: 72
  • Nationality: United States
  • Resides: Westbrook, Maine

Support Personnel

  • Dani Girsbperger - pilot
  • Alain Flueler - pilot
  • Tom Charette - feeder


Martyn Webster

Escort Vessel

Name Type Port
unnamed Swisscat 80PS Stafa, Switzerland

Swim Parameters

  • Category: Solo, nonstop, unassisted.
  • Rules: MSF Rules of Marathon Swimming, without exception or modification.
  • Equipment used: Textile swimsuit (Lands End tugless tank), cap, goggles, earplugs.

Route Definition

  • Body of Water: Lake Zurich
  • Route Type: one-way
  • Start Location: Strandbad, Rapperswil (47.227225, 8.812321)
  • Finish Location: Tiefenbrunnen, Zurich (47.352407, 8.554509)
  • Minimum Route Distance: 26.4 km (16.4 miles) (map)


LongSwimsDB: Lake Zurich.

Swim Data

  • Start: 2 September 2023, 06:13 (Central European Summer Time, Europe/Zurich, UTC2).
  • Finish: 2 September 2023, 19:23
  • Elapsed: 13 hours, 10 minutes, 2 seconds.

Summary of Conditions

Feature Min Max
Water Temp (C) 21 24
Air Temp (C) 16 30
Wind (kph) 0 8

GPS Track

Trackpoint frequency: 20 minutes. Download raw data (CSV).

Click to expand map.

Speed Plot


Observer Log

Download PDF

Swimmer Statement

by Pat Gallant-Charette

I swam the designated 16.4 mile route from Rapperswil to the City of Zurich in a time of 13 hours and 10 minutes. I started on dry steps Rapperswil and finished on dry steps in the City of Zurich. I wanted to swim this route to complete another leg of the Stillwater Eight Challenge. I wore a Land’s End Tugless Tank swimsuit (standard swimsuit), silicone swim cap (an EC swim cap), View goggles, and ear plugs. I did not wear a watch.

Rules of marathon swimming pertaining to this swim was discussed prior to swim with observer Martyn Webster. We used a Spot Gen-4 tracker to record data of this swim. It was activated 10 minutes prior to swim. In addition, we brought backup instruments to monitor wind speed and direction, water and air thermometer.

Pat’s crew: Her son Tom Charette was her only crew member. He prepared her nutrition of two tablespoons of Maple Syrup (from Pat’s backyard maple trees) with 8 oz of water. My feed schedule: Initially swim for two hours and receive first feed, thereafter my feeds were hourly with same mixture. Tom is an experienced crew person. He has been on several marathon swims and is well versed on the rules of marathon swimming. He monitored my swim closely.

Observer: Martyn Webster was my observer. He documented all aspects of my swim. He closely monitored my stroke rate, wind speed, water and air temp and other notes.


Click to enlarge.