Cardboard Regatta

cardboard The 2nd annual Cardboard Regatta, in partnership with the Indianapolis Sailing Club, takes place on Saturday, August 3 from 10 a.m. to 2 p.m. at the Indianapolis Sailing Club and encourages creative thinking as teams race sailboats designed and created from cardboard. Throughout the day, enjoy fun festivities, food, entertainment, and more.

Adults and children ages 8+ can register their team for free and build their boat ahead of time to compete in the main race. Teams can be made up for 2 to 4 people.


You can also create your boat at the event with provided supplies to participate in the free Guppy Race, no pre-registration required.

Boat Judging

Prior to the races, boats will be judged in the following categories (Corporate/club teams and family/individual teams will be judged separately): 

  • Best Original Design
  • Best Construction or Construction Technique
  • Best Decorated
  • Best Team Effort
  • People’s Choice

View rules and regulations for additional details about boat construction and competition details. 

How to Register

The Competition

  • The course is roughly 200 yards.
  • Only corrugated cardboard may be used to create boats, and all boats entered must have an attached sail (the sail may use non-cardboard materials such as cloth or plastic sheeting). See rules and regulations for full details on boat construction. .
  • Propulsion may come from two sources, paddling or sail.  Participants may not be propelled by kicking or paddling by participants in the water.
  • During the races, each event will be timed and awards will be given to the fastest times in each event.
  • There will also be awards for the longest and the shortest boats to get around the race course and for the Most Spectacular Sinking.
  • All riders must bring and wear their own Personal Flotation Devices (PFD's) and paddles.
  • View rules and regulations for additional details about boat construction and competition details.