The cities bidding to host the 2020 Olympics and Paralympics are revealing their presentations and describing why they should stage the Games.


Istanbul, Tokyo and Madrid are the contenders in a secret ballot that will be announced at 21:00 BST on Saturday.


Turkish city Istanbul was the first to reveal its presentation at a meeting of International Olympic Committee (IOC) members in Buenos Aires, Argentina.


Tokyo's bid will be shown second, before the Madrid presentation.


IOC members will also decide on Sunday which one of squash, baseball/softball (joint bid) or wrestling will be added to the Olympic Games programme in 2020.



Olympic hosts since 1972


Olympic rings



  • 1972: Munich, West Germany

  • 1976: Montreal, Canada

  • 1980: Moscow, Soviet Union

  • 1984: Los Angeles, US

  • 1988: Seoul, South Korea

  • 1992: Barcelona, Spain

  • 1996: Atlanta, US

  • 2000: Sydney, Australia

  • 2004: Athens, Greece

  • 2008: Beijing, China

  • 2012: London, UK

  • 2016: Rio de Janeiro, Brazil



And a new IOC president will be elected to replace the outgoing Jacques Rogge.


The Turkish presentation, Istanbul's fifth bid for the Olympics in the past 20 years, focused on linking Europe and Asia together, with importance placed on the country's ancient history and the multi-cultural population.


The bid highlighted the strength of the country's economy, the ambition to inspire future athletes and the prospect that he Games would bring peace to the region. It also repeatedly referenced "zero tolerance to doping".


Turkish Prime Minister Recep Tayyip Erdogan said: "To decide to host the Olympic Games in Turkey, the land of youth, and in the 8,000-year-old city of Istanbul, a city where continents meet, will embody the Olympic spirit.


"It will be the bridge to link the past with the future and link continents, cities and the legacy of mankind. We see the Olympic Games as the rings of peace, sharing and respect."


Tokyo and Madrid's presentation's will follow later on Saturday.


The three cities battling it out to win the vote in Argentina to stage the 2020 Games are all struggling to overcome negative perceptions that could be the undoing of their bids.


Istanbul 2020 suffered a setback from political protests this summer - some at proposed Olympic venues - and also a series of doping scandals among the country's athletes.


The Madrid candidacy has struggled to deal with the issue of the Spanish economy, with high unemployment and workers having to endure pay cuts.


The Spanish capital's response has been to focus its bid on proposing a low-cost, austerity Olympics, using many existing venues and spending around a quarter of the money that went into staging the London 2012 Games.


Tokyo 2020 is considered slight favourite, but has also suffered a blow in recent weeks with fresh concerns over the leak of radioactive material from the Fukushima nuclear plant.


It has reacted by sending a letter to all IOC members seeking to allay fears about Fukushima.


Mike Lee, the head of Vero Communications who worked on the successful Olympic bids for London, Rio de Janeiro (2016) and Pyeongchang (winter 2018), believes there is still all to play for.



Battle for the 2020 Olympics


Shortlist:


Istanbul, Turkey; Madrid, Spain; Tokyo, Japan


Non-selected applicant cities:


Baku, Azerbaijan; Doha, Qatar


Cancelled:


Rome, Italy


Proposed bids that did not go to application:


Brisbane, Australia; Cairo, Egypt; Berlin, Germany; Budapest, Hungary; Delhi, India; Nairobi, Kenya; Kuala Lumpur, Malaysia; Guadalajara, Mexico; Casablanca, Morocco; Lisbon, Portugal



He said: "All the bid teams have been forced onto the defensive for a large part of this campaign because of a range of issues.


"It does still feel that there is a lot to play for, and the final presentations and last two days of lobbying could be very important."


A decision will also be reached by IOC members on the addition of an extra sport for the 2020 Olympics.


A space was freed when wrestling was originally dropped in February, though it was then allowed to reapply.


It remains in the running after the IOC executive board voted for it following 30-minute presentations by each international federation.


Baseball and softball were dropped as individual sports after 2008 in Beijing, but are now back as a joint bid, while squash has never been played at the Olympics, although it is a Commonwealth Games sport.


IOC president Jacques Rogge will step down on Tuesday after 12 years at the helm and a secret ballot will take place on the same day to decide from six candidates to replace the 71-year-old Belgian.


The new president will face tough issues, including concerns over anti-gay legislation in Russia ahead of February's Winter Games in Sochi and construction delays before the 2016 Olympics in Rio.