Alexis Weeks vaults during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)

Alexis Weeks clears 4.60 meters (15 ft 1 in) during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)

Alexis Weeks clears 4.60 meters (15 ft 1 in) during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)

Alexis Weeks gets a hug from twin sister Victoria Weeks after Alexis cleared 4.60 meters (15 ft 1 in) during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)

Alexis Weeks celebrates with twin sister Victoria Weeks after Alexis cleared 4.60 meters (15 ft 1 in) during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)

Alexis Weeks smiles after clearing 4.60 meters (15 ft 1 in) during the Tyson Invitational track meet on February 13, 2016. (Alan Jamison, Nate Allen Sports Service)