I just finished a 5.007km run that lasted about 0hh:23mm:15ss !
It was a hot morning (not a cloud in sight), but as I wasn't going anywhere near 100% it was quite pleasurable. The first 500m were probably the most painful, but after that my leg started to feel better, but then the last 1-1.5km I could definitely feel tightness once again. I finished in 23:15 which isn't overly bad but it's a bit degrading as I'd like to still be pushing under the 20 minute barrier once again, and it's going to be a long slog to get back to the condition I was in 3 months ago. Hopefully I'll bounce back stronger and can push under 19 minutes in the next two months.