30R20

General discussion on Training. How to get better on your erg, how to use your erg to get better at another sport, or anything else about improving your abilities.
MPx
10k Poster
Posts: 1451
Joined: October 30th, 2016, 1:38 pm
Location: Somerset, UK

Re: 30R20

Post by MPx » June 23rd, 2025, 3:44 pm

OK...we've got there.
I did 399 strokes in 20 mins with 2 min splits and got r20 in every split and an r20 overall result.
I did 399 strokes in 20 mins with 1 min splits and got r20 in 19 splits, an r19 in the last split and an r19 overall result.

So we now know:
19.5 rounds up not down.
You can "game" the system as long as at least one complete split is in your target range...all the others can be +1.

What we don't know:
What happens with mixed splits, both + and -.

I'm going to speculate that it takes a simple average of split results and rounds down. But I don't think I can be bothered to prove it one way or the other. I think its clear it has nothing to do with the total number of strokes over the time of the piece. For now I'm just basking in the glory of getting an r19 result from just 1 stroke off a large r20 multiple :twisted:
Mike - 67 HWT 183

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Sakly
Half Marathon Poster
Posts: 3964
Joined: January 13th, 2022, 10:49 am

Re: 30R20

Post by Sakly » June 23rd, 2025, 4:42 pm

MPx wrote:
June 23rd, 2025, 3:44 pm
I did 399 strokes in 20 mins with 2 min splits and got r20 in every split and an r20 overall result.
I did 399 strokes in 20 mins with 1 min splits and got r20 in 19 splits, an r19 in the last split and an r19 overall result.
This is so bad :roll: :lol:
The exact same workout provides different outcomes only by selecting different splits? Even worse than I thought...
Male - '80 - 82kg - 177cm - Start rowErg Jan 2022
1': 358m
4': 1217m
30'r20: 8068m
30': 8,283m
60': 16,222m
100m: 0:15.9
500m: 1:26.0
1k: 3:07.8
2k: 6:37.1
5k: 17:26.2
6k: 21:03.5
10k: 36:01.5
HM: 1:18:40.1
FM: 2:47:07.0
My log

Dangerscouse
Marathon Poster
Posts: 11271
Joined: April 27th, 2014, 11:11 am
Location: Liverpool, England

Re: 30R20

Post by Dangerscouse » June 24th, 2025, 12:22 am

MPx wrote:
June 23rd, 2025, 3:44 pm
OK...we've got there.
I did 399 strokes in 20 mins with 2 min splits and got r20 in every split and an r20 overall result.
I did 399 strokes in 20 mins with 1 min splits and got r20 in 19 splits, an r19 in the last split and an r19 overall result.

So we now know:
19.5 rounds up not down.
You can "game" the system as long as at least one complete split is in your target range...all the others can be +1.

What we don't know:
What happens with mixed splits, both + and -.

I'm going to speculate that it takes a simple average of split results and rounds down. But I don't think I can be bothered to prove it one way or the other. I think its clear it has nothing to do with the total number of strokes over the time of the piece. For now I'm just basking in the glory of getting an r19 result from just 1 stroke off a large r20 multiple :twisted:
:shock: that makes no sense!!!
51 HWT; 6' 4"; 1k= 3:09; 2k= 6:36; 5k= 17:19; 6k= 20:47; 10k= 35:46 30mins= 8,488m 60mins= 16,618m HM= 1:16.47; FM= 2:40:41; 50k= 3:16:09; 100k= 7:52:44; 12hrs = 153km

"You reap what you row"

Instagram: stuwenman

Sakly
Half Marathon Poster
Posts: 3964
Joined: January 13th, 2022, 10:49 am

Re: 30R20

Post by Sakly » June 24th, 2025, 1:26 am

And it would mean you can set up a 30r20 with 30 splits, do 29 at r21 and the last one on r20 to get an overall of r20? So get a PM5 average of 20 for 629 strokes...
I really don't get the math behind that!
Male - '80 - 82kg - 177cm - Start rowErg Jan 2022
1': 358m
4': 1217m
30'r20: 8068m
30': 8,283m
60': 16,222m
100m: 0:15.9
500m: 1:26.0
1k: 3:07.8
2k: 6:37.1
5k: 17:26.2
6k: 21:03.5
10k: 36:01.5
HM: 1:18:40.1
FM: 2:47:07.0
My log

MPx
10k Poster
Posts: 1451
Joined: October 30th, 2016, 1:38 pm
Location: Somerset, UK

Re: 30R20

Post by MPx » June 24th, 2025, 4:55 am

Sakly wrote:
June 24th, 2025, 1:26 am
And it would mean you can set up a 30r20 with 30 splits, do 29 at r21 and the last one on r20 to get an overall of r20? So get a PM5 average of 20 for 629 strokes...
Yep. That was my starting assertion, but I didn't know then that it had to be done with specific splits. Its what Cam Buchan openly took advantage of on his 9k 30r20.
Mike - 67 HWT 183

Image

Sakly
Half Marathon Poster
Posts: 3964
Joined: January 13th, 2022, 10:49 am

Re: 30R20

Post by Sakly » June 24th, 2025, 5:02 am

MPx wrote:
June 24th, 2025, 4:55 am
Sakly wrote:
June 24th, 2025, 1:26 am
And it would mean you can set up a 30r20 with 30 splits, do 29 at r21 and the last one on r20 to get an overall of r20? So get a PM5 average of 20 for 629 strokes...
Yep. That was my starting assertion, but I didn't know then that it had to be done with specific splits. Its what Cam Buchan openly took advantage of on his 9k 30r20.
Now it makes even more sense that I ask to define the rate also for the splits in internal team challenges :lol:
Up to now it only applies to individual intervals, but it would also make sense to pre-define the splits to use and their rate!
Male - '80 - 82kg - 177cm - Start rowErg Jan 2022
1': 358m
4': 1217m
30'r20: 8068m
30': 8,283m
60': 16,222m
100m: 0:15.9
500m: 1:26.0
1k: 3:07.8
2k: 6:37.1
5k: 17:26.2
6k: 21:03.5
10k: 36:01.5
HM: 1:18:40.1
FM: 2:47:07.0
My log

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