"I used to do some terrible things in the marshalling area to upset my rivals"

In this quote, Dawn Fraser, an Australian Olympic swimmer, is reviewing her previous actions in the "marshalling area," which is the designated area where professional athletes collect before a race. She confesses to having done "dreadful things" in this location with the intention of disturbing her rivals. This suggests that Fraser was a fierce and competitive professional athlete who wanted to do whatever it took to gain a benefit over her rivals. It likewise reveals a bit of a naughty side to her character, as she delighted in playing mind games with her opponents. In general, this quote showcases Fraser's determination and shrewd nature as a rival.