Some key recent events

* July-August 2012, London Olympics: Australia win seven gold medals among an overall haul of 35 medals - the fewest gold, and overall medals, in two decades.

* November 2012: Australian Sports Commission announces new funding model, dubbed Winning Edge. Essentially, it provides greater government funding to sports deemed the best medal chances. Australian Olympic Committee president John Coates says he supports the model.

* March 2, 2016: The AOC says about $50 million of taxpayers' money is being wasted on staff at an Australian Institute of Sport, which has no athletes. The institute is managed by the ASC.

* August 5-21, 2016, Rio Olympics: Australia win just 29 medals, including eight gold - the lowest haul in 24 years. Before the Games have finished, Coates criticises Winning Edge and also savages the ASC's policy of appointing business people to head major Olympic sports federations.

* October 10, 2016: Fiona de Jong announces she will quit her job as AOC chief executive.

* December 2016: ASC chairman John Wylie writes to Coates, proposing they "reset the working relationships of the organisations and ourselves for the common good of Olympic sport in this country". The letter also suggests the ASC, given it's the major investor in Olympic teams, has a role in selecting the Australian team's chef de mission.

* December 15, 2016: On de Jong's last day at the AOC, she alleges AOC media director Mike Tancred threatened her and her family during a phone call. De Jong lodges a formal complaint.

* January 2017: Coates responds to Wylie, accusing the ASC of disregarding the autonomy of the AOC. He publishes his letter of response on the internet.

* February 2017: Coates and Wylie cross paths in the VIP area at the Nitro athletics meet in Melbourne. Coates had heard rumours Wylie was behind moves to get someone to challenge for the AOC presidency. During a heated exchange, Coates tells Wylie: "I don't shake hands with liars. I don't shake hands with c---s."

* March 20, 2017: Danni Roche, an ASC board member and Olympic hockey gold medallist, announces she will challenge Coates for the AOC presidency. It's the first challenge to Coates since he took the role in 1990. Roche denies Wylie is behind her bid and says she will reduce Coates' annual $715,000 salary to $100,000 and then waive it if elected.

* April 22, 2017: De Jong, via the media, tells of her formal complaint against Tancred, saying she's frustrated at the lack of action in dealing with her complaint.

* April 25, 2017: After more victims of alleged bullying come forward, Coates writes to AOC executive members: "There is clearly a coordinated and sadly vindictive campaign to damage me personally, and to tarnish all that has been achieved at the AOC."

* April 26, 2017: Tancred stands down as media director until the de Jong complaint is resolved. De Jong releases a letter outlining a dozen alleged cases of workplace bullying within the AOC since 2004. An AOC executive board meeting moves to refer de Jong's complaint to an independent committee and also announces new chief executive Matt Carroll will oversee a review into AOC workplace practices.

* May 6: AOC election.

How the AOC vote works

Who votes?

* 93 votes in total.

* The 13 executive members get one vote each.

* The 33 summer Olympic sports federations have two delegates, each gets a vote (66 votes overall).

* The seven winter Olympic sports federations have two delegates, each gets a vote (14 votes overall).

* Athletes Commission chairman and deputy chairman get a vote each. But commission chairman Steve Hooker will vote as an executive member (one vote overall).

* James Tomkins, AOC executive member and IOC Athletes' Commission member, is overseas and not entitled to a proxy (minus one vote overall).

How do they vote?

* Secret ballot

When do they vote?

* During Saturday's AOC annual general meeting from 9am AEST. The vote is the seventh item on the agenda

Where do they vote?

* AOC headquarters, Circular Quay, Sydney

AAP