Yeah been a little inconsistent, due to 50+ hour weeks and 5 days work in office + 1 day offsite. Not maintaining 60k/week consistently, but still can at least hit 50k.
I ran that after work at 9pm, so it’s unlikely to reflect my fitness. Could be possible if I run on weekends with a short nap. But I would consider re-doing if I didn’t achieve sub-19 min, because that should still be attainable even when I have a long day.
One thing i realised all these while is that can achieve a certain level (eg PB level) but then after also issue about maintaining.

To maintain also need a certain level of dedication, and to PB surpass that lagi worse.
It's only through cycling (very sustainable with high hours) that i am able to maintain the central adaptations (ie heart and lungs cardio/pulmonary), and then the running specifics (peripheral adaptations, neuro etc) i just do the minimal.....
Nowadays also dang hot and yeah only after 9pm can whack, and will get warmer still. I wear TT helmet head all wet, even with a bit of venting there. Only Z2 is tahanable.
Heng i dont do distance type of cycling TTs.