The final was expected to witness four early-season favorites, U.S. top runner Sheena Johnson, 2003 world champion Jana Pittman, current world record holder Yuliya Pechenkina, and two-time European champion Ionela Târlea-Manolache, challenging each other for the Olympic title.
From the start in lane four, Halkia drew level with Pittman outside her at the halfway turn, until she quickly pulled away from the field on the last hundred metres and cleared the final hurdle.
With none of the pre-race favorites willing to chase her on the home stretch, Halkia raced comfortably to an Olympic gold.
[2] Halkia's triumph proved to be a redemption for the host nation Greece in track and field, after the anti-doping scandal and suspicious affair on 2000 Olympic medalists and sprinters Kostas Kenteris and Ekaterini Thanou that tainted the start of the Games.
For the women's 400 metres hurdles, each National Olympic Committee was permitted to enter up to three athletes that had run the race in 55.60 seconds or faster during the qualification period.