September Multisport Events within 100 miles of Windsor Mill, MD
1. Pleasant Valley Aquathlon and 5K
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Past DateSep 7, 2024Saturday
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sprint aquathon | 5K run
Virtual OptionMore Information
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Chantilly, VA
47 miles point to pointFairfax County, VA
2. Shenandoah River - Aquablaze Paddle and Run
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Sep 7, 2025Sunday
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26M, 30K offroad duathlon
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Bentonville, VA
89 miles point to pointWarren County, VA
3. Reston Triathlon
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Past DateSep 8, 2024Sunday
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olympic triathlon | olympic triathlon relay
More Information
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Reston, VA
41 miles point to pointFairfax County, VA
4. Dewey Beach Sprint Triathlon
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Past DateSep 14, 2024Saturday
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sprint triathlon | sprint triathlon relay | sprint duathlon
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Dewey Beach, DE
99 miles point to pointSussex County, DE
5. Marshcreek Sprint Triathlon
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Sep 14, 2025Sunday
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sprint triathlon | sprint triathlon relay
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Downingtown, PA
73 miles point to pointChester County, PA
6. Parvin Anniversary Duathlon & 5K Trail Race
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Sep 14, 2025Sunday
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sprint duathlon | sprint duathlon relay | 5K trail run
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Elmer, NJ
86 miles point to pointSalem County, NJ
7. Giant Acorn Triathlon
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Sep 20, 2025Saturday
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olympic triathlon | olympic triathlon relay
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Spotsylvania, VA
90 miles point to pointSpotsylvania County, VA
8. Ironman Maryland
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Sep 20, 2025Saturday
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ironman triathlon
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Cambridge, MD
64 miles point to pointDorchester County, MD
9. Giant Acorn Triathlon
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Sep 21, 2025Sunday
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sprint triathlon | sprint triathlon relay
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Spotsylvania, VA
90 miles point to pointSpotsylvania County, VA
10. IM ABLE Games
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Past DateSep 21, 2024Saturday
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sprint duathlon
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Wyomissing, PA
81 miles point to pointBerks County, PA
11. Karen Stevens Memorial Kids Triathlon
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Past DateSep 21, 2024Saturday
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youth triathlon
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Severna Park, MD
19 miles point to pointAnne Arundel County, MD
12. Mighty Matapeake Multisport Festival
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Sep 27, 2025Saturday
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sprint triathlon | sprint triathlon relay | sprint duathlon
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Stevensville, MD
34 miles point to pointQueen Anne's County, MD
13. Waterman's Half Triathlon
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Sep 27, 2025Saturday
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half, olympic triathlon
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Rock Hall, MD
31 miles point to pointKent County, MD
14. Waterman's Half Triathlon
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Sep 28, 2025Sunday
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sprint triathlon
More Information
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Rock Hall, MD
31 miles point to pointKent County, MD
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.