Mac Solo Challenges

The Mac Solo Challenges consist of the Port Huron to Mackinac Island Challenge (230 nautical miles), the Chicago to Mackinac Island Challenge (287 nautical miles), the Super Mac (517 nautical miles), and the Super Mac and Back (1034 nautical miles). The Challenges are held annually, generally taking place on the third or fourth Saturday in June. These two Challenges, run concurrently, and feature a common finish line at Mackinac Island. The President’s Cup Trophy is awarded to the first time finisher on each lake who has the fastest corrected time. An awards luncheon takes place on Mackinac Island on the Wednesday following the start of the Challenges, and non-member skippers who successfully complete either Challenge will be awarded lifetime membership in the Society.

2023 Results
Past Results

The 2024 Mac Solo Challenges Start on June 22nd

Race Documents (NOR & SI)
Scratch Sheet

Registration Instructions:

  1. To enter please go to,
  2. You will then create your login using your email address and a password of your choosing
  3. Complete all of the requested information on the entry form
  4. Pay your entry fee. YOUR ENTRY IS NOT VALID OR TIMELY UNTIL THE FEE HAS BEEN PAID! If you cannot pay online then please send a check in USD funds to the Mac Race Chair. Please note that a late fee is required after May 21, 2024.
  5. Email the following required documents to,
    – Life Raft Certificate or Exposure Suit Form
    – Required Equipment List
    – Liability Waiver
    – 2024 MW-PHRF Certificate
    – Proof of Insurance

Mac Race Chair

If you have any questions or issues please feel free to call or email,
Elisabeth Reichling
Mobile: (269) 330-8868

Mailing Address:
P.O. Box 362
Richland, Michigan 49083-0362

Resumé and Solo Passage Documentation – Non GLSS Members Only

Non-GLSS members who wish to enter either the Chicago or Port Huron to Mackinac Solo Challenge, must submit a Sailing Resumé and also a Solo Passage Documentation form to be considered for entry. Early submission of these documents will allow the GLSS Board of Directors ample time for review, and provide you with time to correct any deficiencies. Non-GLSS members can email their sailing resume and passage documentation to the Mac Race chair,

EXAMPLE – Resumé and Solo Passage Documentation
Resumé form for both Solo Macs
Solo Passage Documentation form for both Solo Macs