Ratings - please read before commenting - Archived

JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

What's the reasoning for giving a boxer who loses a close decision some of the winner's points? For example, Jacobs loses to Canelo and his points go from 599.5➞710.0. It was a close decision but a unanimous decision - a clear loss, not a SD or MD. And Canelo actually loses points even though he beats one of the #3 boxer in the division via UD.
JCS
Heavyweight
Heavyweight
Posts: 6243
Joined: 17 Dec 2004, 13:27

Re: Ratings - please read before commenting

Post by JCS »

JohnMcMinn wrote: 05 Jun 2019, 15:16 What's the reasoning for giving a boxer who loses a close decision some of the winner's points? For example, Jacobs loses to Canelo and his points go from 599.5➞710.0. It was a close decision but a unanimous decision - a clear loss, not a SD or MD. And Canelo actually loses points even though he beats one of the #3 boxer in the division via UD.
Seems obvious, no?

The losing boxer performed better than expected based on the rating difference and vice versa.. so the ratings adjust to reflect this. A boxer with a rating triple his opponent's, is expected to win much more dominantly than 115-113/116-112
JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

It makes some sense, it just seems odd that the winning boxer would lose points for a UD victory.
John
Heavyweight
Heavyweight
Posts: 9035
Joined: 08 May 2000, 20:00

Re: Ratings - please read before commenting

Post by John »

JohnMcMinn wrote: 08 Jun 2019, 08:22 It makes some sense, it just seems odd that the winning boxer would lose points for a UD victory.
If Saul Alvarez squeeked a narrow 12 round UD over Clifford McPherson http://boxrec.com/en/boxer/327502 should he still be rated at #1 ?
JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

John wrote: 08 Jun 2019, 09:16 If Saul Alvarez squeeked a narrow 12 round UD over Clifford McPherson http://boxrec.com/en/boxer/327502 should he still be rated at #1 ?
No, but McPherson is rated 1,284. Alvarez would be expected to shutout or KO him. Jacobs is #3 and a close decision would be expected. I'm just wondering why a UD results in lost points, that's all. It seems by this logic, for example, Golovkin should lose points for KOing Rolls given their ratings disparity. I'm not suggesting a change or anything, just trying to understand the reasoning behind this.
jamamb
Lightweight
Posts: 14329
Joined: 17 Sep 2017, 05:37

Re: Ratings - please read before commenting

Post by jamamb »

closer then computerally expected result based on the point disparity
John
Heavyweight
Heavyweight
Posts: 9035
Joined: 08 May 2000, 20:00

Re: Ratings - please read before commenting

Post by John »

The reasoning is simple, it makes the algorithm more accurate. We test the factors so they improve the prediction rate.
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

jamamb wrote: 10 Jun 2019, 17:03 closer then computerally expected result based on the point disparity
That's the problem. The point disparity overrides the ranking. Canelo, like any other #1 fighter can only fight what's available. The unreal standards placed on fighters' performances against even top 3 boxers is unfair.
JCS
Heavyweight
Heavyweight
Posts: 6243
Joined: 17 Dec 2004, 13:27

Re: Ratings - please read before commenting

Post by JCS »

Manrae wrote: 10 Jun 2019, 20:10 That's the problem. The point disparity overrides the ranking. Canelo, like any other #1 fighter can only fight what's available. The unreal standards placed on fighters' performances against even top 3 boxers is unfair.
But he's still #1 by a wide margin..
JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

JCS wrote: 11 Jun 2019, 09:51 But he's still #1 by a wide margin..
This is my point though. Canelo had 1129 more points than Jacobs and loses 92 points when he wins a UD. Golovkin had 1363 more points than Steve Rolls but gains points for KOing him. Why should he gain points for KOing such an overmatched opponent? That is an insane points disparity. It's not like one boxer has 20 points and the other has 2 points, we're talking a 1300+ point difference. It seems inconsistent to me, and I don't see why a KO should affect the result. That's what I'm trying to understand.
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

JohnMcMinn wrote: 11 Jun 2019, 10:54 This is my point though. Canelo had 1129 more points than Jacobs and loses 92 points when he wins a UD. Golovkin had 1363 more points than Steve Rolls but gains points for KOing him. Why should he gain points for KOing such an overmatched opponent? That is an insane points disparity. It's not like one boxer has 20 points and the other has 2 points, we're talking a 1300+ point difference. It seems inconsistent to me, and I don't see why a KO should affect the result. That's what I'm trying to understand.
A UD is not a clear decision per definition. It only means, all judges gave the win to one of the opponents. And this may be by an advantage of one single round. So such a bout is much closer to a draw. A SD with 2 judges favouring cleary one opponent and the 3rd judge only having it close may be a much narrower decision.
And at last, a boxer cannot get at much more than double or triple of his best opponent's points. The rating of a boxer at the end depends on the best opponents available.
JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

computerrank wrote: 11 Jun 2019, 15:27 A UD is not a clear decision per definition. It only means, all judges gave the win to one of the opponents. And this may be by an advantage of one single round. So such a bout is much closer to a draw. A SD with 2 judges favouring cleary one opponent and the 3rd judge only having it close may be a much narrower decision.
And at last, a boxer cannot get at much more than double or triple of his best opponent's points. The rating of a boxer at the end depends on the best opponents available.
Thanks. That explains it pretty well. So in the Golovkin example he gains points because it's a decisive victory and the massive ratings disparity has no effect on the outcome?
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

JohnMcMinn wrote: 11 Jun 2019, 15:52 Thanks. That explains it pretty well. So in the Golovkin example he gains points because it's a decisive victory and the massive ratings disparity has no effect on the outcome?
Golovkin example:
Golovkin won no regular points, Rolls lost no regular points.
Golovkin only got addtitonal points. 0.01 for the win. 0.1 for the win against a winner within 18 months. 1 for a win against a winner, who himself defeated a winner within 18 months. And finally up to 40 points, at most the opponent's prebout rating, here 29 points. All see Boxrec ratings description.

Jacobs ecample:
Alvarez lost regular points due to the close result and the big rating difference. Jacobs won these points. About 110 points.
Alvarez won about 20 additional points and so lost only 90 points at all.
JohnMcMinn
Super Lightweight
Posts: 177
Joined: 26 May 2017, 12:03

Re: Ratings - please read before commenting

Post by JohnMcMinn »

computerrank wrote: 12 Jun 2019, 01:18 Golovkin example:
Golovkin won no regular points, Rolls lost no regular points.
Golovkin only got addtitonal points. 0.01 for the win. 0.1 for the win against a winner within 18 months. 1 for a win against a winner, who himself defeated a winner within 18 months. And finally up to 40 points, at most the opponent's prebout rating, here 29 points. All see Boxrec ratings description.

Jacobs ecample:
Alvarez lost regular points due to the close result and the big rating difference. Jacobs won these points. About 110 points.
Alvarez won about 20 additional points and so lost only 90 points at all.
Thank you! That all makes sense now.
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

http://boxrec.com/en/boxer/819546

Ranked #50 of top p4p UK boxers of all time.

How? :verysad:
JCS
Heavyweight
Heavyweight
Posts: 6243
Joined: 17 Dec 2004, 13:27

Re: Ratings - please read before commenting

Post by JCS »

Manrae wrote: 15 Jun 2019, 07:08 http://boxrec.com/en/boxer/819546

Ranked #50 of top p4p UK boxers of all time.

How? :verysad:
That's a pretty sweet one..
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

One top career win and nothing else.

I will reconsider the all times formula after my trip through the Baltic countries :witzend:

Greetings from Riga :wave:
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

computerrank wrote: 19 Jun 2019, 13:32 One top career win and nothing else.

I will reconsider the all times formula after my trip through the Baltic countries :witzend:

Greetings from Riga :wave:
Hey, had a chance to look at the all time ranking formula yet?
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

Manrae wrote: 15 Jul 2019, 00:25
computerrank wrote: 19 Jun 2019, 13:32 One top career win and nothing else.

I will reconsider the all times formula after my trip through the Baltic countries :witzend:

Greetings from Riga :wave:
Hey, had a chance to look at the all time ranking formula yet?
I will return on July 21.
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

computerrank wrote: 15 Jul 2019, 07:11
Manrae wrote: 15 Jul 2019, 00:25

Hey, had a chance to look at the all time ranking formula yet?
I will return on July 21.
Cool :box:
Lackeos
Heavyweight
Heavyweight
Posts: 3598
Joined: 26 Jan 2008, 03:05

Re: Ratings - please read before commenting

Post by Lackeos »

Manrae wrote: 10 Jun 2019, 20:10
jamamb wrote: 10 Jun 2019, 17:03 closer then computerally expected result based on the point disparity
That's the problem. The point disparity overrides the ranking. Canelo, like any other #1 fighter can only fight what's available. The unreal standards placed on fighters' performances against even top 3 boxers is unfair.
Saul had a 1728 rating, which was 239 points higher than the current #2 p4p boxer. Which essentially means that there's quite a wide gap between him and other fighters like Lomanchenko, Crawford, Spence, and Usyk (and Pacquiao). In order to maintain that major distance between other top fighters, he needs to post results that are reflective of having a distant lead on the #1 p4p position.

Alvarez won the Jacobs fight by only an average of 2 rounds on the cards. Lomanchenko and Crawford have each won all of their fights since 2014 with "clear decision factors" of 1. Look back at how long it's been since either of them won any fight by only 2 rounds. Alvarez remains hundreds of points ahead of them. Not everyone would agree that he should be.
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

Many retired boxers including DeGale, Bellew, Groves and more have suddenly re-appeared in the rankings.
Why?
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

Manrae wrote: 30 Jul 2019, 07:49 Many retired boxers including DeGale, Bellew, Groves and more have suddenly re-appeared in the rankings.
Why?
Seems to be a problem with the new Boxrec release. I forwarded your message to the team.
Manrae
Heavyweight
Heavyweight
Posts: 352
Joined: 28 Nov 2002, 18:57

Re: Ratings - please read before commenting

Post by Manrae »

computerrank wrote: 01 Aug 2019, 04:50
Manrae wrote: 30 Jul 2019, 07:49 Many retired boxers including DeGale, Bellew, Groves and more have suddenly re-appeared in the rankings.
Why?
Seems to be a problem with the new Boxrec release. I forwarded your message to the team.
Cool, hope you enjoyed your time away on vacation :TU:
computerrank
Editor
Editor
Posts: 2492
Joined: 04 Jan 2003, 18:59

Re: Ratings - please read before commenting

Post by computerrank »

Manrae wrote: 01 Aug 2019, 09:22
computerrank wrote: 01 Aug 2019, 04:50
Seems to be a problem with the new Boxrec release. I forwarded your message to the team.
Cool, hope you enjoyed your time away on vacation :TU:
We had a great time :-)

Regarding the ratings, I will wait until the issues with the new Boxrec release will be fixed ...
Locked