LAKE TAHOE (KCBS) — While the organizers of Ironman Lake Tahoe said the event is still on for this Sunday, some are worried that smoke from the King Fire, burning near Pollock Pines, could create a health hazard for competitors.

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The National Weather Service is anticipating that most of the smoke from the King Fire will clear out of the Tahoe region by this weekend and North Lake Tahoe Resort Association spokesman Andy Chapman told KCBS that there are currently no plans to cancel the race.

“The forecast actually shows for clear skies and highs in the mid-70s for Sunday,” he said.

“Obviously any contingencies that would come into play would come into play on Sunday morning but there Iron Man races are all over the world, quite frankly, and they have contingencies for everything.”

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Chapman said about 3,100 athletes have signed up for Ironman in Lake Tahoe.

“Pretty much people come from every state and eight to ten different countries—folks are coming internationally to participate as well,” he said.

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In addition to all the athletes, the triathlon is expected to draw as many as 10,000 people to the Tahoe region.