Voting ends at 4 p.m. Wednesday
The Dragons score a go-ahead touchdown with 5:16 left then stop the Trojans on 4th-and-goal to seal the win.
Football powerhouses play Friday for the first time in the regular season.
The teams are meeting for only the fourth time and the first during the regular season.
The Trojans and Dragons have played three times in the playoffs.
Sixteen years after being diagnosed with cancer, Sam Helsley is playing football for the Keller Central Chargers, for whom his dad is head coach.
Evening thunderstorms force area games to be delayed or postponed.
Arlington Sam Houston 21, Arlington 20
FW Arlington Heights 52, FW Wyatt 15