Can’t get enough of improv? Improvapalooza 2007 will be just your cup of tea, as Washington Improv Theater stages a once-a-year marathon Saturday at the Source Theatre. Imagine 26 improv shows, each 10 minutes long, with some fillips you probably can’t imagine — like an entire show set in a bathroom. The craziness lasts from 7 p.m. to midnight. Tickets are $10 at the door. 1835 14th St. NW. 202/315-1318.
Going for the green
The preppy polo image gets an environmentally friendly makeover at the first-ever Green Cup polo match Saturday. The competition, open to professional and amateur players, aims to promote a greener lifestyle and combat the climate crisis. Match begins at 1 p.m at the Capitol Polo Club. 14600 Hughes Road, Poolesville. Tickets are $10. 202/787-6056.
Country comes to town
High-octane country superstar Toby Keith is gearing up to show fans at the Nissan Pavilion on Saturday that he is as good as he ever was. The music legend will perform the arena-ready favorites that have made his “Big Dog Daddy Tour” a hit across the nation. Miranda Lambert and Flynnville Train will join him onstage. Tickets are $39 to $75. Showtime is 7:30 p.m. 7800 Cellar Door Drive, Bristow, Va. 703/754-6400.
Ready to run
Get some fresh air, work off calories and meet a new friend at the Puma Pursuit on Tuesday. The three-mile social run will have checkpoints along the way. Prizes, refreshments and a DJ will be waiting for runners at the end of the course. Run begins at 7 p.m. at Pacers Running Store. Registration is free. 3100 Clarendon Blvd., Arlington. 703/248-6883.
Combining musical genres just got a little easier as musical couple Vince Gill and Amy Grant bring their dynamic pop and country sounds to Wolf Trap’s Filene Center on Wednesday. They will be performing with the Del McCoury Band. 7:30 p.m. Tickets are $25-$42. 1645 Trap Road, Vienna, Va. 703/255-1868.
A band of voices
Almost Recess knows how to sing and does it without accompaniment. The five-member a cappella group will put its voices to the test to create the sounds of a band at the Kennedy Center’s Millennium Stage tomorrow. The show begins at 6 p.m. No tickets are required. 2700 F St. NW. 202/467-4600.
The Fraser Gallery in Bethesda will host an opening reception for its Summer Group Exhibit tomorrow. The new exhibit will feature paintings, photography and sculpture by artists such as David FeBland, David Gordon, Sandra Ramos, Maxwell MacKenzie, Mitsuo Suzuki and others. The reception begins at 6 p.m. 7700 Wisconsin Ave., Bethesda. 301/718-9651.
Movies on the Mall
Bring a blanket and some snacks as HBO’s popular summer movie series Screen on the Green takes over the Mall beginning Monday. The series, which runs through Aug. 13, will feature a different film each week, starting with Woody Allen’s 1977 “Annie Hall.” The movies will be presented free of charge on the Mall, off Constitution Avenue, between Fourth and Seventh streets Northwest. Showtime is about 8 p.m.
— Gordon Van Owen and Suzanna Logan