DRF variant adjustments - Pace and Cap

grahors · 11-25-2007, 07:44 PM

There has been a little bit of discussion regarding adjusting time using the daily variant...
FWIW, I have used a chart by Wm Scott with some success......
DRF variant/ adjustment
9/+7 fifths
10/+6
11/+5
12/+4
13/+3
14-15/+2
16-17/+1
19,19,20/0
21-22/-1
23-24/-2
25-26/-3
27-28/-4
29-30/-5
31-32/-6
33-34/-7

I have read to adjust final time using the full adjustment and pace call time using 1/2 the adjustment (rounding down).
Any comments if this is plausable??
Cecil

RichieP · 11-26-2007, 11:06 AM

Cecil,
Back in 1991 I learned how to apply the Drf variant to a paceline by a pro. He was teaching me the way to use Sartin's Tpr numbers from "Pace makes the Race" book.

Here is what he did fwiw:

17 was default as 0 adjustment
16-18 = 0 adjustment
15 = -1
14 = 1.5
13 = -2
12 = -2.5
11 = -3
10 = -3.5
9 = -4
8 = -4.5
7 = -5 Ok he stressed to AVOID like the plague using variants less than 7 or more than 27 but if I HAD no other choice than to subtract 1 fifth for 1 point from here on in
6 = -6
5 = -7
4 = -8

Use the same scale just adding instead of subtracting going up from 17
19 = +1
20 = +1.5
21 = +2
22 = +2.5
23 = +3
24 = +3.5
25 = +4
26 = +4.5
27 = +5
28 = +6
29 = +7
30 = +8

Now regarding applying adjustment to pace calls he used 60% of the adjustment(rounding to closest whole number) and applied that to 2nd call. The book said use 65% in sprints and 60% in routes but he used 60% rounded to closest whole number. He never touched the first fraction.

Richie

xtb · 11-26-2007, 06:13 PM

Using 17 as ground zero holds up today. I averaged the drf variant from my database of all tb races >= 4.5 furlongs for the last 3 years, couple hundred thousand races, and got 16.8.

grahors · 11-26-2007, 09:55 PM

Richie,
If adjusting times, shouldn't the minuses be plusses and vice versa.
If adjusting the speed fig, I think they are fine.
Or, am I thinking in reverse. Long day at the pharmacy(and busy).
Cecil
where's the recipe????? I am very hungry. (just kidding, whenever is ok)

RichieP · 11-26-2007, 10:27 PM

Quote:

Originally Posted by grahors

Richie,
If adjusting times, shouldn't the minuses be plusses and vice versa.

YES.

Cecil I had a brain fart when typing it man

11-25-2007, 07:44 PM	#1
grahors Grade 1 Join Date: Sep 2007 Location: Minneapolis Posts: 104	DRF variant adjustments There has been a little bit of discussion regarding adjusting time using the daily variant... FWIW, I have used a chart by Wm Scott with some success...... DRF variant/ adjustment 9/+7 fifths 10/+6 11/+5 12/+4 13/+3 14-15/+2 16-17/+1 19,19,20/0 21-22/-1 23-24/-2 25-26/-3 27-28/-4 29-30/-5 31-32/-6 33-34/-7 I have read to adjust final time using the full adjustment and pace call time using 1/2 the adjustment (rounding down). Any comments if this is plausable?? Cecil

11-26-2007, 11:06 AM	#2
RichieP Grade 1 Join Date: Jun 2005 Posts: 7,019	Cecil, Back in 1991 I learned how to apply the Drf variant to a paceline by a pro. He was teaching me the way to use Sartin's Tpr numbers from "Pace makes the Race" book. Here is what he did fwiw: 17 was default as 0 adjustment 16-18 = 0 adjustment 15 = -1 14 = 1.5 13 = -2 12 = -2.5 11 = -3 10 = -3.5 9 = -4 8 = -4.5 7 = -5 Ok he stressed to AVOID like the plague using variants less than 7 or more than 27 but if I HAD no other choice than to subtract 1 fifth for 1 point from here on in 6 = -6 5 = -7 4 = -8 Use the same scale just adding instead of subtracting going up from 17 19 = +1 20 = +1.5 21 = +2 22 = +2.5 23 = +3 24 = +3.5 25 = +4 26 = +4.5 27 = +5 28 = +6 29 = +7 30 = +8 Now regarding applying adjustment to pace calls he used 60% of the adjustment(rounding to closest whole number) and applied that to 2nd call. The book said use 65% in sprints and 60% in routes but he used 60% rounded to closest whole number. He never touched the first fraction. Richie __________________ "Grampy I'm talking to you!"

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11-26-2007, 06:13 PM	#3
xtb Grade 1 Join Date: Oct 2006 Location: Western NY Posts: 111	Using 17 as ground zero holds up today. I averaged the drf variant from my database of all tb races >= 4.5 furlongs for the last 3 years, couple hundred thousand races, and got 16.8.

11-26-2007, 09:55 PM	#4
grahors Grade 1 Join Date: Sep 2007 Location: Minneapolis Posts: 104	Richie, If adjusting times, shouldn't the minuses be plusses and vice versa. If adjusting the speed fig, I think they are fine. Or, am I thinking in reverse. Long day at the pharmacy(and busy). Cecil where's the recipe????? I am very hungry. (just kidding, whenever is ok)