Ready for some flag or touch football? The North Meadow in Central Park allows team football through the end of November. Convince your friends to play by obtaining a fancy permit from the Parks Department [source: Central Park]. For a more organized take on flag football, visit the New York - New Jersey Flag football league's Web site.
If you're looking to play soccer, basketball, ice hockey, or even indoor sand volleyball, Chelsea Piers offers a wide variety of adult athletic leagues [source: Chelsea Piers]. Fall leagues have already started their season, but winter registration is still available for most sports. Alternatively, you can always reserve some playing space all to yourself if you want to drop in with some friends. Don't forget you can also enjoy Chelsea Piers' batting cages, driving range and skating rink throughout the holiday weekend.
A runner's best bet is the Pete McArdle Cross Country Classic 15K on Sunday, Nov. 25, at 11:30 a.m. in the Bronx's Van Cortland park [source: NYRR.org]. The running trails offer rugged and varied terrain, from cinder hills to grassy flats. The cost is $7 for adults and $5 for youths 14 and under. There's no advance registration -- just show up on race day and get ready to run off your turkey day overindulgences.
Finally, if you're looking for impromptu, post-turkey sports opportunities, don't forget to check the Craigslist Activities board.