Possible Clues:

• Picnic competition
• Dismiss ethnic origin in sports day event
• Picnic contest
• One has to fire on the run in this sporting event
• It may make people jump to a conclusion
• Sporting event in which one has to fire on the run
• Fire group of people in which competitors are at a handicap
• Competition that might see people on fire?
• A competition to fire people
• After the push given, vehicle reversed - the last in contest