The DEMO version only includes 4 pages:
http://ttmarathon.com
http://ttmarathon.com/online-registration.html
http://ttmarathon.com/race-information/full-marathon.html
http://ttmarathon.com/race-information/marathon-relay-for-schools-and-open-6-legs.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
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