The MOST important action for Dorji to take in preparing his digital footprint for recruiters is:
Make sure he is not tagged in any photos or has posted any photos where he and his friends are doing something that is against school policy.
While accurate track and field stats, updating his resume, and ensuring references are ready are all important, maintaining a positive and appropriate online presence is crucial as recruiters often check social media for insight into a candidate's character and behavior. Ensuring that no inappropriate content is associated with him online would help him present himself in the best light.