The Madtown Doubledown is an annual mixed doubles curling tournament on the ISS Mixed Doubles World Curling Tour.

It is held annually[1] at the Madison Curling Club in McFarland, Wisconsin.

[2] The purse for the event is $26,000,[3] and its event categorization is 750 (highest calibre is 1000).

[2] It has one of the largest payouts on the mixed doubles tour.

[1] The event has been held since 2018.