I completed the LI Greenbelt Trail from Field 3 at Sunken Meadow to Field 7 at Heckscher yesterday in a FKT of 4:41:15. Below is the link to the garmin connect file. The weather was great but was certainly a little hot by the end. Trail was in great shape except for a couple sections in the first few miles that required some bushwhacking. It seems that a little loop that the Greenbelt Trail takes off the main trail on the ridge above Sunken Meadow park has been largely abandoned. This was the last 1/4 mile of the first mile of the run. It was totally overgrown with raspberry bushes which left my legs all scratched up and hence the 12 minute split for the first mile. Otherwise, great day and great run. If there are any problems with the link, let me know.
4h 41m 15s