Hockey Outsider
Registered User
- Jan 16, 2005
- 9,437
- 15,590
I'm not sure if I've stumbled upon a new, interesting way of looking at career value, or if this is all nonsense. Feedback is welcome.
The obvious challenge in ranking players based on their career totals is it doesn't differentiate between a player with a dominant peak and then a bunch of weaker years, and a player who was steady from season to season. For example, Guy LaFleur and Mats Sundin have almost the same number of goals, assists and points. LaFleur was nearly unstoppable for six years but never placed in the top 25 in scoring after that. Sundin only placed in the top ten in scoring twice, but had ten years where he placed between 11th and 30th. They got their career totals in very different ways - and anybody who follows hockey would rank LaFleur well ahead.
Some people think that once you adjust for the scoring environment, the problem goes away. It doesn't. If you use VsX, Ron Francis ranks 7th in career scoring, Johnny Bucyk is 13th, and Mark Recchi is 14th. If you use hockey-reference.com's adjusted points, the results are similar - Francis is 5th, Recchi is 9th, and Bucyk is 23rd. Even if we adjust for league-wide scoring levels, it doesn't change the fact that these players had very long careers and put up huge totals despite never having a prominent peak.
My idea is to introduce a concept widely used in finance - discounting. In finance, future cash flows get discounted (reduced) to reflect the fact that a dollar earned in the future is worth less than a dollar earned today. If we apply that concept here, we'd take the player's point total from their best season, and leave it as is. Their point totals from their 2nd-best season would be discounted by 10%; point totals from their 3rd-best season would be discounted by a further 10% (so 21% overall), etc. By the time you get down to their 10th-best season, a point is only worth about 42% as much as a point from their best season. In a player's 20th-best season, a point is only worth 16% as much.
The obvious challenge in ranking players based on their career totals is it doesn't differentiate between a player with a dominant peak and then a bunch of weaker years, and a player who was steady from season to season. For example, Guy LaFleur and Mats Sundin have almost the same number of goals, assists and points. LaFleur was nearly unstoppable for six years but never placed in the top 25 in scoring after that. Sundin only placed in the top ten in scoring twice, but had ten years where he placed between 11th and 30th. They got their career totals in very different ways - and anybody who follows hockey would rank LaFleur well ahead.
Some people think that once you adjust for the scoring environment, the problem goes away. It doesn't. If you use VsX, Ron Francis ranks 7th in career scoring, Johnny Bucyk is 13th, and Mark Recchi is 14th. If you use hockey-reference.com's adjusted points, the results are similar - Francis is 5th, Recchi is 9th, and Bucyk is 23rd. Even if we adjust for league-wide scoring levels, it doesn't change the fact that these players had very long careers and put up huge totals despite never having a prominent peak.
My idea is to introduce a concept widely used in finance - discounting. In finance, future cash flows get discounted (reduced) to reflect the fact that a dollar earned in the future is worth less than a dollar earned today. If we apply that concept here, we'd take the player's point total from their best season, and leave it as is. Their point totals from their 2nd-best season would be discounted by 10%; point totals from their 3rd-best season would be discounted by a further 10% (so 21% overall), etc. By the time you get down to their 10th-best season, a point is only worth about 42% as much as a point from their best season. In a player's 20th-best season, a point is only worth 16% as much.
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