MONACO (AP) -- IAAF vice president Bob Hersh will head the commission evaluating the track and field bids from London and Doha, Qatar, for the 2017 world championships.
The International Association of Athletics Federations says Hersh, an American, will serve as chairman of the 10-person commission.
The team will spend a day and a half in each city, visiting the stadium, training facilities and hotels.
The panel will be in London from Oct. 2-3 and Doha from Oct. 4-5.
The IAAF will select the winner after final presentations in Monaco on Nov. 11.
Doha proposes holding the event in September to avoid the summer heat. London's bid could be jeopardized by legal wrangling over the Olympic Stadium.
Tottenham is challenging the decision to let rival West Ham take over the venue after the 2012 Games.