Any way of tuning race predictor?

9256409 said:

usually hit my max heart rate in the final 200m

Probably fair to say you hit a max heart rate in the final 200m. It is quite feasible that your fatigue from the 5k effort prevents you achieving your true maximum heart rate. That might be a few beats higher.

There are protocols that you can follow that will allow you to better determine your true max heart rate.

I might not hit my max HR but I do go all out in the last 200m and spend whatever I've got left, so I think I'm pretty close, I just did a search and came across this: https://the5krunner.com/2011/12/21/5k-heart-rate-training-racing-zones/ His average HR per 1km split are: 81%, 88%, 92%, 94%, 96% (99% extra 50m). Mine for my last two are: 83%, 89%, 92%, 93%, 94% and 76%, 89%, 93%, 94%, 96% (99% extra 8m). Assuming 5krunner is good at running 5ks, I'm running at a pretty similar level of effort it seems.

Again, no matter how tuff you think you are, you are not running a time trial at true 5k maximum intensity.  How do I know that... because you have since said that in the past month/months... you have built your distance weekly quite substantially in addition you think you are doing PR race efforts twice a week!   THAT IS IMPOSSIBLE!  You can not run a PR effort every week, let alone twice a week... hell, unless you are 15-25yrs old... not likely for an experienced runner to be able to do a PR race effort more than once a month, due to taper and recovery needed.  

I am experienced , ran plenty of short distance PR's in training... but then go on to do PR's in longer events/marathon/boston/etc...  do hard intervals and train hard.  but then race even faster when tapered.  You did not increase your training volume by 10-40% week over week over week... and then run a 'true potential' PR's midweek for a workout... oh and then do it again 2-3days later in the 10k... LOL  oh and then do it again the next week... LOL 
Which also means you are likely 5-10beats short of your maximum HR... because again, fatigue prevents a high HR 

You're correct running a PB every week is like Bekele running a world record every week, not even in his prime. 

I haven't once mentioned running a PB in this thread, never mind attempting one every week.

But you are critizing race predictor that you can't run the time it's suggesting. It's not telling if you go fun run in the race it's the time you are getting.

It's the time it thinks you have potential to archive if you are wll rested and prepared for the race.

No I'm not. I merely asked how to tune the race predictor so it more precisely predicted the time I'm currently capable of running those race distances.

It assumes you have good rest and preparations for the RACE. It's RACE predictor, not fun run or training run predictor.

Have a good rest and preparation and go a 5k race and see what happens. Before that it feels more like you are looking it to be something else that it is.

Literally this whole thread you claim your TT are your fastest you can run, that they are races...you want to know what your goal pace for a PR should be.... then you say you don't care about PBs... ugh.  wtf

Your weekly Tempo/Threshold runs and sustained "well above Threshold but below vo2max runs" (not a thing really btw and not great training IMO)...  run a hair faster then the week before if it feels sustainable.  done.  at some point you will want to level off the pace and stop increasing as your LT pace or vo2max pace doesn't change that quickly.   Just like myself... if I run a 3mi threshold run at 6:30 and it felt tough but manageable and HR stayed a bit lower than expected... next week I run at 6:20-6:25 and see how it goes.  Otherwise I run a bit of a progression run starting at 6:30 and slowly increase pace to 6:15 and see how HR/effort feels.