When is the decision?


On Friday. Voting in Copenhagen begins at 5 p.m. -- that's 10 a.m. in Chicago. If Chicago is eliminated in one of the early rounds of voting, we'll learn then. But if it's one of the final contenders, word won't come out until the announcement ceremony, scheduled from 11:30 a.m. to noon Chicago time.

How will the decision be made?

For the first time, there are no IOC meetings in the days leading up to the vote – just an opening ceremony. That means less chance for host city finalists to lobby. Most IOC members won't arrive until the day before the vote.

On Friday, the voting process in Copenhagen will work like this:

*In an expected three rounds of voting, the 106 eligible members vote secretly by pressing numbered buttons (one for each candidate) on machines.

Members in a country with a candidate cannot vote until that city is eliminated. That means there will be 99 eligible voters in the first round, since Brazil, Japan and the United States each has two IOC members, while Spain has one.

*Until one candidate gets a majority of the votes, the lowest vote-getter in each round is eliminated. That is announced publicly before the next round of voting. Not since the vote for the 1988 Olympics, when winner Seoul vied with Nagoya, Japan, has a Summer Games ballot lasted only one round.

*The process happens so quickly it is nearly impossible between rounds for any lobbying to occur. Bid committees have no contact with the voters, and even those IOC members also on bid committees have no time to lobby. Candidate cities already have lobbied to become the second choice of some IOC members known to favor a rival.

Before the voting begins, each city will tell its story for the final time in 45-minute presentations with another 15 minutes for IOC members' questions the morning and afternoon of the vote.

In an order determined by drawing lots last year, Chicago goes first, followed by Tokyo and Rio before the members' lunch break. Madrid's presentation comes after lunch in Copenhagen. The vote follows Madrid's presentation.

Want to learn more? Olympic correspondent Philip Hersh wrote about it.

Where can I watch?

Daley Plaza downtown, where the official Chicago 2016 party at Washington and LaSalle streets will begin at 9 a.m. And there are also a number of places around Chicago and the suburbs. Among them:

FAMILY FRIENDLY:

-- Rufino Tamayo Charter School on Southwest Side: This school run by UNO (United Neighborhood Organization) at 5135 S. California Ave., will hold a viewing party starting at 10:30 a.m. The event will include a message by UNO Charter School Network President Juan Rangel broadcast from Copenhagen. Rangel served on the Chicago 2016 Outreach Committee.

-- Washington Park on South Side: A group of aldermen is sponsoring an "Olympic Watch" in Washington Park, proposed site of the temporary Olympic Stadium. The UniverSoul Circus will conduct its normal morning show from 10:30 a.m. to 1 p.m. in the big top, and as the decision nears, the circus acts will pause and spectators will watch JumboTrons.

-- Downtown Naperville: A Naperville Backs the Bid street festival will take place from 11 a.m. to 1 p.m. along Chicago Avenue between Main and Washington streets. The fest will include music and dancing.

-- Concordia University Chicago in River Forest: A viewing party will start at 10:30 a.m. in the north Geiseman Gymnasium, 7400 Augusta St.