Race events using the RaceDay CheckIn app are now able to print personalized participant information to create more efficient processing at packet pickup and on race day. Labels placed on the participant bibs can contain a number of custom fields, such as name, age, event the participant is doing, team name, corral, bib number, and t-shirt size. The RaceDay CheckIn app is compatible with iOS and Android devices and transmits data to the label printer using local WiFi services. RunSignup’s RaceDay CheckIn app is a free product designed for race organizers to deliver an efficient race day check-in experience and overcome typical race operations challenges.