Track and Field is not a sport that uses the Daktronics "TV Feeds" protocol which is what XPression currently interfaces to. At present the datalinq only supports the following sports from Daktronics:
Baseball
Basketball
Football
Hockey
Soccer
Volleyball
Some track and field photofinish systems can push the data to character generators using CII commands. I have worked with this in the past using Finishlynx (the most popular photofinish system) and pushing the data to a Chyron. It has never been tried with an XPression but likely could be made to work. It does require the Finishlynx system to have a "ResultTV" option which most sites do not have..
It is possible that the DakProstar system might also be able to send results using CII.
#XPression