For dynasty rookie drafts, I've always wanted to answer questions like "how much more valuable is 1.1 than 1.5"? Where should I be able to move up to if I traded my 2nd and 3rd round picks? To try to come up with some answers, I've been tracking the career performance of the players drafted each year in my dynasty rookie draft in an attempt to gauge the value of the different draft slots (similar to the NFL draft charts we often hear referenced). Thought I'd share it with you and get your thoughts-- it's more a fun offseason project than something I think is really that statistically sound, so I'd appreciate any thoughts on how to improve it.
Let's start with the RESULTS:
Pick # Value
1 100
2 83
3 73
4 66
5 61
6 56
7 53
8 49
9 46
10 44
11 42
12 39
13 37
14 36
15 34
16 32
17 31
18 30
19 28
20 27
21 26
22 25
23 24
24 23
25 22
26 21
27 20
28 19
29 18
30 17
31 16
32 16
33 15
34 14
35 13
36 13
37 12
38 11
39 11
40 10
41 9
42 9
43 8
44 8
45 7
46 7
47 6
48 6
49 5
50 5
51 4
52 4
53 3
54 3
55 3
56 3
57 2
58 2
59 1
60 0
PROCESS
Without getting too into the details, my process has been to assign different point values depending on how players finish each year (40 pts. for a top five ppg RB finish, 30 pts. for a top five ppg QB, etc., 2 points for a top 50 WR finish, etc.) The point values are based on our league scoring requirements and how I believe each position is valued. I also give decreasing bonuses for players reaching those finishes in the years immediately following their draft (because if a player produces immediately, their lasting dynasty value is much higher than if they breakout year 5). For each player, I am able to assign a number of "value points" for each player for their career. By adding all of the value points for players in each draft position (1.1, 1.2, 1.3, etc.), I have what I think is a pretty good estimate of how the performance diminishes as the draft goes on. The chart above uses a best fit equation and adjusts to a 100 point scale.
APPLYING IT
The biggest barrier to using this chart was figuring out how much a roster spot is worth. You cannot simply say a 2nd and 3rd round pick is worth a 1st without knowing the value of the free agent that could be picked up by the team who just gave up two picks for one. So, I also ran some numbers for the free agents picked up in my league following the draft, and their value turned out to be 7 points, or equivalent to the 45th pick in the draft. So, I believe that you should be able to use the chart at face value, as long as you factor in an additional 7 points for any two for one deals (for example, I think to move from 1.2 (83 points) to 1.1 (100 points), you should give up roughly 24 points (pick 23).
CONCLUSIONS
That's where I need you all... what do you make of this? Does it change any perceptions you have about drafting rookies? If my method makes any sense, it does show that in my league any pick after #45 is worthless (just the same likelihood of panning out as someone you pick after the draft). Someone with more stats savvy than me, what are my holes in this project?
A couple caveats from my end:
-- This is obviously more useful before we know who is in the draft. Each year's draft is not created equal...
-- The league I ran this on is only 7 years in, so I still don't have enough data or full careers to feel very solid in the results.
-- I gave a ton of weight to star performance (finishing at the top vs. being startable at your position), so I think it does a pretty good job of factoring in that the chance at a star player is worth much more than possibly finding mid range guys. Late drafts of guys like Arian Foster and Jimmy Graham are what earned value points for late round picks, not the Kevin Walter's of the world who were drafted late in my league and have a lot of top 30 finishes.
-- You should know that our rookie draft also includes street free agents (veterans that nobody in my league has rostered)
Have at it, Shark Pool...
Let's start with the RESULTS:
Pick # Value
1 100
2 83
3 73
4 66
5 61
6 56
7 53
8 49
9 46
10 44
11 42
12 39
13 37
14 36
15 34
16 32
17 31
18 30
19 28
20 27
21 26
22 25
23 24
24 23
25 22
26 21
27 20
28 19
29 18
30 17
31 16
32 16
33 15
34 14
35 13
36 13
37 12
38 11
39 11
40 10
41 9
42 9
43 8
44 8
45 7
46 7
47 6
48 6
49 5
50 5
51 4
52 4
53 3
54 3
55 3
56 3
57 2
58 2
59 1
60 0
PROCESS
Without getting too into the details, my process has been to assign different point values depending on how players finish each year (40 pts. for a top five ppg RB finish, 30 pts. for a top five ppg QB, etc., 2 points for a top 50 WR finish, etc.) The point values are based on our league scoring requirements and how I believe each position is valued. I also give decreasing bonuses for players reaching those finishes in the years immediately following their draft (because if a player produces immediately, their lasting dynasty value is much higher than if they breakout year 5). For each player, I am able to assign a number of "value points" for each player for their career. By adding all of the value points for players in each draft position (1.1, 1.2, 1.3, etc.), I have what I think is a pretty good estimate of how the performance diminishes as the draft goes on. The chart above uses a best fit equation and adjusts to a 100 point scale.
APPLYING IT
The biggest barrier to using this chart was figuring out how much a roster spot is worth. You cannot simply say a 2nd and 3rd round pick is worth a 1st without knowing the value of the free agent that could be picked up by the team who just gave up two picks for one. So, I also ran some numbers for the free agents picked up in my league following the draft, and their value turned out to be 7 points, or equivalent to the 45th pick in the draft. So, I believe that you should be able to use the chart at face value, as long as you factor in an additional 7 points for any two for one deals (for example, I think to move from 1.2 (83 points) to 1.1 (100 points), you should give up roughly 24 points (pick 23).
CONCLUSIONS
That's where I need you all... what do you make of this? Does it change any perceptions you have about drafting rookies? If my method makes any sense, it does show that in my league any pick after #45 is worthless (just the same likelihood of panning out as someone you pick after the draft). Someone with more stats savvy than me, what are my holes in this project?
A couple caveats from my end:
-- This is obviously more useful before we know who is in the draft. Each year's draft is not created equal...
-- The league I ran this on is only 7 years in, so I still don't have enough data or full careers to feel very solid in the results.
-- I gave a ton of weight to star performance (finishing at the top vs. being startable at your position), so I think it does a pretty good job of factoring in that the chance at a star player is worth much more than possibly finding mid range guys. Late drafts of guys like Arian Foster and Jimmy Graham are what earned value points for late round picks, not the Kevin Walter's of the world who were drafted late in my league and have a lot of top 30 finishes.
-- You should know that our rookie draft also includes street free agents (veterans that nobody in my league has rostered)
Have at it, Shark Pool...