ST. PETERSBURG, Fla. -- Registration for the 2019 Skyway 10K opened Thursday and has already sold out. 

All 7,500 general admission spots for the second annual Skyway 10K, Saluting Military Families, were sold out in approximately 20 minutes. 

“We can’t thank our participants enough for this generous outpouring of support,” Kelly Kresel, operations director for the Skyway 10K. “Runners have signed up from all over the world to come to Tampa Bay and support an organization that puts all the money raised back into projects benefiting our military members and their families. It sends a message that their hearts are with our heroes.”

The run is set to take place on March 3 and benefits the Armed Forces Families Foundation, a non-profit organization that provides 100 percent of the funds they raise back to projects to support our service men and women and their families. 

“We are honored and incredibly grateful for the support this event and our charity continues to receive,” said John Wright, a board member with of the Armed Forces Families Foundation. “Even with the increase in runner capacity, supporters of our nation’s military and our veterans’ families continue to raise the bar and have kicked off this event on a high note.”

The inaugural Skyway 10K featured 7,000 runners from 40 states, three countries, and all five branches of the U.S. armed forces. The event sold out in five days and raised $560,000 for the Armed Forces Families Foundation. 

Some of the changes for the second annual Skyway 10K include redesigned bus corrals for easier loading and unloading, increased number of waves to reduce runner congestion, a new parking plan with the St. Petersburg Police Department and Tampa Bay Rays, and the decision to allow GoPros on the bridge. 

Due to overwhelming amount of people trying to sign up for the race, there have been some reports of people experiencing duplicate registrations and charges. Officials say those with extra charges on their credit card will automatically be refunded. 

Officials also noted that while general admission sold out, a number of VIP admissions are still available. 

The run begins on I-275 at the south rest area of the bridge and ends at the rest area on the north side of the bridge, totaling 6.2 miles. 

Buses will transport participants from Tropicana Field to the starting point on the south end of the bridge and will also transport runners from the finish line back to Tropicana Field for refreshments, entertainment, and the awards ceremony.

Only the northbound lanes of the Sunshine Skyway Bridge are scheduled to be closed at 4:00 a.m., and those lanes are scheduled to reopen by 11:00 a.m.