SEMO Fair Demo Derby

Spectators watch the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. .

Crew members asses the damage done to Mark Mayfield's car during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. Just seconds into thier heat Mayfield's car was disabled and teammate Leslie Welker was injured.

Mark Mayfield, right helps Leslie Welker and drive onto the track during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. Just seconds into thier heat Mayfield and Welker's car was disabled and Welker was injured.

Spectators watch the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. .

Keith Zoellner works on a car to get it ready for the next race during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau.

Spectators watch the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. .

Leslie Welker, left, Mark Mayfield, Chris Webb and Eric Grahm confer before Welker and Mayfield take to the track during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. Just seconds into thier heat Mayfield and Welker's car was disabled and Welker was injured.

Mark Mayfield, right helps Leslie Welker with her helmet before they take to the track during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. Just seconds into thier heat Mayfield and Welker's car was disabled and Welker was injured.

Leslie Welker is loaded into an ambulance after being injured during the Dual Demo Derby at the SEMO District Fair Tuesday, September 11, at Arena Park in Cape Girardeau. Just seconds into their heat driver Mark Mayfield and Welker's car was disabled and Welker was injured.