Hello Utku,
If you look at the table under "Contact" and go through the explanation under "Property/Description", it says that the result tracking is performed on the Contact side of that contact pair:
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/wb_sim/ds_Result_Tracker_structural.html
Hope this helps! If your question has been answered satisfactorily, please mark the corresponding answer so that we know this question has been resolved.
Thanks
Sai