IOC 2020 Olympics vote too close Sport World Breaking News Sport September 7, 2013 One of the closest contests in Olympic history was going down to the wire in Buenos Aires on Saturday as the International Olympic Committee (IOC) prepared to vote on which city between Madrid, Istanbul and Tokyo will host the 2020 Summer Olympics. All three bid cities were to have a final chance to woo the IOC members with a 45-minute presentation piece after which the first round of voting would commence. Madrid looked to have gained a slight edge over its two rivals despite Istanbul having put together the best and most dynamic of their five Games bids, and Tokyo being the only one of the three to have hosted the global sporting showpiece previously, in 1964. However, all three reached the finishing line of the arduous two-year political marathon battered and bruised and with question marks over all of them. Madrid will still have to overcome questions about the Spanish economy, Istanbul has to try to banish memories of the heavy-handed treatment of anti-government protesters in June and worries over the potential fallout from the bloody Syrian civil war. Meanwhile, Tokyo will have to field growing concerns over the leaks of contaminated water from the crippled Fukushima nuclear plant. Madrid, though, has shown remarkable resilience throughout the race, battling to convince members they could host the Games despite the dire state of the Spanish economy. They seemingly achieved that goal when the IOC Evaluation Commission gave them the thumbs up for their proposed budget. The eagerly-awaited verdict is due to be revealed to the world by retiring IOC President Jacques Rogge at 2030 GMT.