Jackson Invitational track meet

Jackson's Sierra Maddox begins her run to clear 12 feet 6 inches in the pole vault event Saturday, April 5, 2014 at the Jackson Invitational in Jackson. Maddox placed first in the event. (Fred Lynch)

Jackson's Sierra Maddox clears 12 feet 6 inches in the pole vault event Saturday, April 5, 2014 at the Jackson Invitational in Jackson. Maddox placed first in the event. (Fred Lynch)

Jackson's Sierra Maddox completes her pole vault of 12 feet 6 inches Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Jackson's Morgan Stone wins the 100-meter dash Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Notre Dame's Zac Glaus wins a heat of the 100-meter dash Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Jackson's Caleb Bess, left, takes the baton from Alex Philipps in the 3200-meter relay Saturday, April 5, 2014 at the Jackson Invitational in Jackson. Jackson won the event. (Fred Lynch)

Jackson's Anna Compton, left, takes the baton from Taylor Winnick in the 3200-meter relay Saturday, April 5, 2014 at the Jackson Invitational in Jackson. Jackson won the event. (Fred Lynch)

Saxony Lutheran's Mia Ponder, left, takes the baton from Abby Hadler in the 800-meter relay event Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Central's Patrick Buck competes in the shot put event Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Central's Jazreil Hill competes in the high jump event Saturday, April 5, 2014 at the Jackson Invitational in Jackson. (Fred Lynch)

Poplar Bluff's Lexi Hafford wins the 100-meter hurdles event Saturday, April 5, 2014 at the Jackson Invitational in Jackson.