Author Topic: Another go .. TG??  (Read 40245 times)

mattc

  • n.b. have grown beard since photo taken
    • Didcot Audaxes
Re: Another go .. TG??
« Reply #425 on: May 14, 2017, 02:47:49 pm »
...

+1114.8 vs Godwin line
+920.9 vs Searvogel line
-395.9 vs Amanda after 70 days
-1095.4 vs projected Coker line


Is the "projected Coker line" just a straight line i.e. shows the average required to do every day to match Coker's projected total?

[Without seeing graphs I struggle to figure this stuff out, sorry!]
Has never ridden RAAM
---------
No.11  Because of the great host of those who dislike the least appearance of "swank " when they travel the roads and lanes. - From Kuklos' 39 Articles

SoreTween

  • Most of me survived the Pennine Bridleway.
Re: Another go .. TG??
« Reply #426 on: May 14, 2017, 09:12:43 pm »
-395.9 vs Amanda after 70 days
-1095.4 vs projected Coker line


Is the "projected Coker line" just a straight line i.e. shows the average required to do every day to match Coker's projected total?

[Without seeing graphs I struggle to figure this stuff out, sorry!]
Spot on. 
Her anticipated total (only anticipated for a few more hours) / 365 * the number of days Steve has ridden.
2017 targets: not worth worrying about a while yet - just ride.

SoreTween

  • Most of me survived the Pennine Bridleway.
Re: Another go .. TG??
« Reply #427 on: May 22, 2017, 01:09:13 pm »
Week 11:

Those who worry about sleep issues take note this week, if anything is going to show up surely this (week 12) will be the week.  Last week Steve pushed every irregular sleep boundary.  He posted 13 rides which means he was active at midnight 6 out of 7 days.   From lunchtime on Thusday he was active for 36.5 hours straight of which he was moving for 30.75 hours.  He did allow himself rest of 14 hours before and 12 hours after that marathon.  The result is his second highest total for the year, 2566.9 miles or 227.86 mpd average.  Week 1 was highest naturally.

His routes were interesting, for a change he did keep to the flatlands.  8813 mtrs climbed is his lowest weekly total by 500mtrs and only his second week under 10,000.  Steve didn't use this to gain speed, his average for the week was 26.15 but there's no automatic correlation as Steve consciously controls his speed.  We do have enough data though to see if there is an unconscious relationship between speed and meters climbed. 
This is a spread of his rides so far, speed in kmh on the horizontal and meters climbed vertical:

Lopsided in the expected direction?  Add a trend line:

Yep, a clear trend to flatter routes = more speed.  That outlier looks like it is skewing things though, lets remove that:

The outlier (3rd April, his east coast route to Ferrybridge with a reasonable tailwind) was skewing the result but the trend is certainly there.

Does anyone know if the kJ work done figure on Strava comes from his power meter or a guesstimate from the route?

1270.2 ahead of the Godwin line.
1056.9 ahead of the Searvogel line.
1157.5 behind the Coker line.
2017 targets: not worth worrying about a while yet - just ride.

dogtrousers

  • Pantaloon
Re: Another go .. TG??
« Reply #428 on: May 22, 2017, 02:12:38 pm »
The result is his second highest total for the year, 2566.9 miles or 227.86 mpd average.  Week 1 was highest naturally.
Weeks are slippery things.  If take day 1 as day 1, and week 12 as Sat 13-Fri 19 May, you do indeed get that.  But if you align with a Monday-Sunday week, skipping the first two days (which I think Steve has mentioned in his videos, and which aligns to Strava weekly totals which makes for easy cross-checking) the week from 15-21 May was actually his lowest since the start, at only 215 mpd.

Does anyone know if the kJ work done figure on Strava comes from his power meter or a guesstimate from the route?
I'm fairly certain that the avg Watts comes from his power meter.  Some rides he uploads from GPX files, and the watts are missing, some rides come from his Garmin 520 and the avg Watts are present.  Not sure about the kj figure, I've never really looked at it.

Karla

  • car(e) free
Re: Another go .. TG??
« Reply #429 on: May 22, 2017, 02:35:49 pm »
From Strava

Quote
​
Total Work, expressed in kilojoules (kJ), is simply the sum of the watts generated during your ride. There is a close 1–to–1 ratio with Total Work and Calories expended during a ride.
​

Since he's running a power meter, the kJ figure will be from that.  Remember, energy = power * time.
Someone on here once gave me a pompino for free

dogtrousers

  • Pantaloon
Re: Another go .. TG??
« Reply #430 on: May 22, 2017, 02:46:37 pm »
Since he's running a power meter, the kJ figure will be from that.  Remember, energy = power * time.
You know that, I know that.  But Strava has a tendency to make things up so you always need to be careful about the provenance of the data.

Karla

  • car(e) free
Re: Another go .. TG??
« Reply #431 on: May 22, 2017, 02:56:11 pm »
My last quote was from a ride on which I had a power meter.  Here's the equivalent text from a ride in which I didn't have a power meter.

You'll note that if you have a PM then Strava gives 'Power', whereas if you don't have one, it gives 'Est Power'.

Quote
Energy Output measures the amount of work you've done during a ride, expressed in kilojoules (KJ). It is a factor of how much you're pedaling, how fast you're pedaling and how much force you're exerting on the pedals (measured in W). Power output is most accurately taken from a power meter, but if you don't have a power meter we give a rough approximation through our power estimator.
Someone on here once gave me a pompino for free

SoreTween

  • Most of me survived the Pennine Bridleway.
Re: Another go .. TG??
« Reply #432 on: May 22, 2017, 04:32:18 pm »
The result is his second highest total for the year, 2566.9 miles or 227.86 mpd average.  Week 1 was highest naturally.
Weeks are slippery things.  If take day 1 as day 1, and week 12 as Sat 13-Fri 19 May, you do indeed get that.  But if you align with a Monday-Sunday week, skipping the first two days (which I think Steve has mentioned in his videos, and which aligns to Strava weekly totals which makes for easy cross-checking) the week from 15-21 May was actually his lowest since the start, at only 215 mpd.
Funny what pops out of the numbers when you look and I missed Steve saying that.  It's surprising that which weekend forms part of the week makes such a significant difference.  The weekend before was certainly big but the weekend after didn't seem that small.  Using the strict day number week he has 3 lower than 215mpd.

Thanks all for the quotes on strava power.  I may go back over the rides and add that to my spreadsheet then see what relationship there is with climb and speed.  Don't anyone hold their breath though.
2017 targets: not worth worrying about a while yet - just ride.

dogtrousers

  • Pantaloon
Re: Another go .. TG??
« Reply #433 on: May 22, 2017, 04:53:23 pm »
Thanks all for the quotes on strava power.  I may go back over the rides and add that to my spreadsheet then see what relationship there is with climb and speed.  Don't anyone hold their breath though.
Drop me a PM if you want the backlog of power readings from Strava for each ride in spreadsheet form and I'll email you a csv.  Will make going back over your rides easier.

I've idly done a bit of analysis relating speed and power and come up with the earth shattering conclusion that when Steve puts in more power he tends to go faster, but not always.  I think there may be a PhD in it.  Steve was quite clearly (or clearly-ish)  gradually increasing his power input up to about day 60 or thereabouts, and it's levelled off a bit since.  Speed crept up commensurately.

The headache that the power data provides is that not every ride has power data.  Sometimes you get days with two rides, one of which has power data, and one which doesn't.  It all gets a bit messy.

Re: Another go .. TG??
« Reply #434 on: May 22, 2017, 09:07:05 pm »
Steve stopped like clockwork  at Royston McDonalds. We must have a loyalty card by now.
I tell you something, that was some f_____g ride

Re: Another go .. TG??
« Reply #435 on: Yesterday at 06:45:44 am »
He's having a real good crack at this you know - keep going Steve!

Re: Another go .. TG??
« Reply #436 on: Yesterday at 07:59:17 am »
Yes, well done Steve, the weather's turning getting better so just enjoy being out on the bike, you deserve it after all that wind and rain.