Just got back from my RfL 5k. Boy, it was tough!! My Garmin says the temperature was 17 deg. but it felt a lot warmer than that. Just glad I didn't go for the 10k distance!
I thought it was a slow run but having checked, it was okay. 5.44k in 32:26. I do know I couldn't have gone any quicker. Hoping it's going to be a bit cooler for the 10k coming up in July!