I'm planning a site where users can upload race results of races they either participated in or were the organizer/owner of. This is in a specific animal racing niche. There is one race in particular that is the #1 race in this niche, which has 50-100 participants in it per year on average. This race in particular publishes the race results on its website, but shortly before the next year's event (it's a one time a year thing), they take the results down from the previous year. The results of this race go back 30+ years and I'd like to display them on my site as they are not easy to find online. They have been published in several books, however.
A portion of the visitors to my site will have participated in or will eventually participate in this race. I'd like for them to show up as having participated in this race (think list of names of participants with their name linking to their profile). My questions are the following:
What should I be concerned about in displaying the results from this race? How can I properly attribute the race? In books, I've seen it say 'X trademark' or 'X copyright' owned by X organization. Does that suffice?
If a user uploads the results of this race (or similar race) to this site, because they participated in it or simply because it was lacking in the site, how do I ensure they properly attribute the race?
Am I overly concerned here?