Registration is open now for this year’s 9/11 Memorial Tower Challenge at Gila River Arena, 9400 W. Maryland Ave., Glendale.

The challenge returns to Glendale on Saturday, Sept. 11, which will mark 20 years since the terrorist attack that claimed 2,977 victims, including 343 firefighters, eight emergency medical technicians, and 72 law enforcement officers from a total of eight local, state and federal agencies.

Over the 20 years since the terror attacks of Sept. 11, the U.S. has lost more than 7,000 military members and another 53,000 have been wounded in the Global War on Terror.

On Saturday, Sept. 11, participants will meet at Gila River Arena to remember all first responders killed on 9/11, and all those who have died in the ensuing fight against global terrorism, and climb 2,071 steps for the 2021 Memorial 9/11 Tower Challenge.

Click here to register to climb.

This event is open to the public including all active, reserve and retired members of fire service, law enforcement, first responder and military communities, along with families and friends. The first 1,500 people to register will receive a T-shirt and a challenge coin.

All proceeds raised benefit the 100 Club of Arizona, and the Gary Sinise Foundation.

Sponsorship levels start at just $1,000. Email Lindy Smith at lindy@100Club.org for information regarding event sponsorship opportunities.