10 km journey

[Dominik2006]

Hello TheEd
1 k session(1 min rest)

1. 3:56 ,avg heart rate 150
2. 4:01, avg heart rate 159, starting heart rate 104 bpm
3. 3:58, avg heart rate 159, starting hear rate 118 bpm
4. 3:56, avg heart rate 159, starting heart rate 136 bpm
5. 3:59, avg heart rate 159, starting heart rate 108(probably a glitch)
6. 3:48, avg heart rate 162, starting heart rate 131

Then I do all the training, but i missed paced 5 k because of bad weather

And this saturday I did 5 k all out

time was 19:44 avg heart rate 176, avg pace per km was 3:56
1k - 3:50
2k - 3:58
3k - 4:05
4k - 3:58
5k - 3:49

New pb, im very satisfied. Now Im planing to do 10 k after this cycle, started today with 1h:10 min 11k easy running
What do you think about paces for next 2k sessions and 1 k sessions, should I speed it up or keep the same(4:12 for 2k, and 4:00 for 1k)?