Watch Round One of World Record Jumping Jack Contest

Round one of 's two-session contest—a national effort which aims to break the Guinness Book of World Record title for most jumping jacks done in a 24-hour period—was a success Tuesday.

Eleven children successfully completed one full minute of jumping jacks on Haddon Avenue at 4:30 p.m. Tuesday, out front of .

Click to read more about the contest, and about how paired with National Geographic Kids magazine to help the country accomplish the feat, which is part of a fitness campaign organized by First Lady Michelle Obama.

The final of the two-round contest begins at 11 a.m., and will feature jumpers like Collingswood Mayor James Maley, and Commissioners Joan Leonard and Mike Hall.

Be sure to check back with Collingswood Patch for coverage of the commissioners' jump!