The 36th Annual Race to Robie Creek half-marathon sold its first 2,100 entries in 13 minutes, 34 seconds on Monday afternoon.

Getting a race number is rivaled in difficulty only by finishing the race. There will be a second chance for runners to get an entry beginning Tuesday. Race organizers said at least 200 entries will be available through the second-chance drawing. Details about the second-chance drawing are available at robiecreek.com.

Last year, the race sold out its 2,100 entries in less than 9 minutes.

This year’s theme is “RoBie or Not RoBie?”