The Trans-Catalina Trail used to run the length of Santa Catalina Island, from Avalon to Starlight Beach at the north end of the island.  Its northern end was rerouted to make transportation easier, so that now the trail goes to Parson's Landing and loops back to Two Harbors.  The 2012 FKT listed for Aaron Flynn was for the old route, which seems to have been ~ 1.5 miles longer than the current route.  The official route is shown on

Robert Rives posted the route:

On September 21st, 2015, I completed a running circumnavigation of Mono Lake, the iconic body of water just east of Yosemite NP. The entire route is 41.7 miles long. I have found no reports of anyone else doing a loop run around Mono Lake, so as of now I believe this to be the first time it has been done.

Google Earth flyover video of the route here: www.youtube.com/watch?v=14JQAlmsjH4 

http://www.oregonhikers.org/field_guide/Wilson_River_Traverse_Hike

In the Oregon Coast Range

Pete Kirkham posted the route:

43 mile loop from Onion Valley, over Kearsarge Pass, to the JMT south, over Forester Pass south to Crabtree Meadow and out over Trail Crest and down to Whitney Portal.

Mt Tallac (9735') is a popular day hike south of Lake Tahoe. http://www.tahoebackcountry.net/hiking/desolation/tallac.htm has a description. There are several possible routes, with the most logical being from the Mt Tallac TH and from the Glen Alpine TH.  Ascents of both of these have Strava segments: