I've got some old course records set in June that may or may not hold up for another year.
This past weekend two of them held up. The Nipmuck trail marathon CR of 3:01:54 is now 19 years old. The race was run for the 27th time last weekend. I'm surprised at how long it has stood up. The Whiteface mountain CR of 56:27 (which I hold jointly with Eric Morse) is now 14 years old. They had the 33rd running last weekend.
The other CR is from the Tilton-Northfield 5k. If my 15:01 isn't broken it will hit 14 years. The 19th running of the race will take place on June 26.
Nipmuck 3:01:54 26.22 06/02/91 Ashford CT Trail
Tilton - Northfield 0:15:01 3.11 06/29/96 Tilton NH Road
Whiteface Mountain 0:56:27 8.00 06/09/01 Wilmington NY Mtn