W9 R2

[Stefan01]

My legs felt so heavy today still managed to keep going still 6K not the best timing

[Instructor57 Graduate]

Heavy legs is often a sign of dehydration,

[IannodaTruffe Mentor]

Following from Instructor57 s comment, as a runner you need to drink a minimum of 2.5 -3 litres of fluid each and every day, running or not, as mentioned in the guide.

[nowster Graduate]

Blooming heck, you're fast! Most folks that close to graduating C25K don't get anywhere close to 5 km in 30 minutes, let alone 6!

Going forward, given your high average heart rate, you might want to ease up just a little on that pace, to put it more into the aerobic range.