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Re: Ratings - please read before commenting

Posted: 28 Mar 2021, 09:41
by computerrank
squiggy wrote: 27 Mar 2021, 22:43
computerrank wrote: 25 Mar 2021, 02:51
jujigatame wrote: 24 Mar 2021, 18:54 Has "winner over loser" been done away with? I see Rene Alvarado is now ranked above Roger Gutierrez even though Gutierrez won their recent fight in an upset.
A bug within instant updates sometimes ignores the rule. I am chasing it ... :twisted:
Hmm. I thought, poking around, that this wasn't a bug but a feature of the way scores are currently tabulated. Just as a for instance, Vilomar Fernandez's numbers only increase from 2 to 11 for his 1978 win over Alexis Arguello, while the loss only brings Arguello down from 214 to 190. I've noticed quite a few other instances like this, I just name this one because it's the one I've just now seen.
We are talking about 2 different cases.
- jujigatame talked about current ratings - the rating today - here the winner above-loser rule is in place
- you talk about the boxer's profile - a boxer's historical ratings at time of each bout - here the winner-above-loser rule is NOT in place

Re: Ratings - please read before commenting

Posted: 29 Mar 2021, 06:59
by computerrank
MontyCircus wrote: 29 Mar 2021, 00:43 This Saturday night, April 3rd

Jamel Herring vs. Carl Frampton
Two "5-star" fighters...but listed as a 4-star fight? :maybe:

Murodjon Akhmadaliev vs. Ryosuke Iwasa
A "4-star" fighter against a "4½-star" fighter...but listed as a "3-star" fight? :maybe:
The difference comes from the different ratings used for
- boxer's current rating, which may be higher than the the rating at time of his last bout due to winner-above-loser rule and stay-busy-bout rule regarding the last 18 months, and wihich is used for the boxer's star rating
- the boxers' rating at bout time, which is exactly the uncorrected WHR rating at that time, and which is used for the bout star rating

Re: Ratings - please read before commenting

Posted: 30 Mar 2021, 05:19
by computerrank
MontyCircus wrote: 30 Mar 2021, 04:40 Then why is Jamel Herring vs. Carl Frampton (two "5-star" fighters), now a "zero-star" fight?
This issue still is not solved.

Re: Ratings - please read before commenting

Posted: 30 Mar 2021, 14:22
by mike1989
Listen very badly with no birthdates. Why does Wikipedia have the right to disclose personal data and Boxrek does not? Can I make an electronic agreement for the distribution of personal data when creating a profile on Boxrek ???

Re: Ratings - please read before commenting

Posted: 30 Mar 2021, 14:30
by computerrank
mike1989 wrote: 30 Mar 2021, 14:22 Listen very badly with no birthdates. Why does Wikipedia have the right to disclose personal data and Boxrek does not? Can I make an electronic agreement for the distribution of personal data when creating a profile on Boxrek ???
That is no issue for the ratings thread. You can try here:

viewtopic.php?f=1&t=245683&p=5510602#p5510602

Re: Ratings - please read before commenting

Posted: 16 Apr 2021, 15:18
by pugilisticspecialist
It looks like Adamek is done with the sport, he should be assigned cruiserweight.
I think he'll be right near the top of the all-time cruiserweight rankings.

Re: Ratings - please read before commenting

Posted: 16 Apr 2021, 15:35
by computerrank
pugilisticspecialist wrote: 16 Apr 2021, 15:18 It looks like Adamek is done with the sport, he should be assigned cruiserweight.
I think he'll be right near the top of the all-time cruiserweight rankings.
You already raised the issue here on the right spot
viewtopic.php?p=5474122#p5474122
But the editors do not seem to be convinced he is inactive already ... :maybe:

Re: Ratings - please read before commenting

Posted: 16 Apr 2021, 17:50
by jujigatame
What's the deal with Uzcategui's rating? Right now he's got about 20 points at LHW, but if you click on his profile, his last bout shows only about 9 points.

https://boxrec.com/en/proboxer/571528

Re: Ratings - please read before commenting

Posted: 17 Apr 2021, 06:44
by computerrank
jujigatame wrote: 16 Apr 2021, 17:50 What's the deal with Uzcategui's rating? Right now he's got about 20 points at LHW, but if you click on his profile, his last bout shows only about 9 points.

https://boxrec.com/en/proboxer/571528
It is the Boxrec stay busy bout rule. The current rating is
- the highest rating in any bout within the last 18 months, which was a clear win OR
- the rating in the last bout within the last 18 months which wasn't a clear win.

Re: Ratings - please read before commenting

Posted: 17 Apr 2021, 10:59
by jujigatame
So suddenly in a couple of months he will have a big rating drop?

Re: Ratings - please read before commenting

Posted: 17 Apr 2021, 12:41
by jujigatame
Is the plan still to offer the old-style ratings as a toggle/choice on the website? I don't want to be overly negative because I think you generally do an admirable job with the ratings, but the old-style ratings were just so much easier to examine and understand at a glance. I do miss them.

Re: Ratings - please read before commenting

Posted: 17 Apr 2021, 13:08
by computerrank
jujigatame wrote: 17 Apr 2021, 12:41 Is the plan still to offer the old-style ratings as a toggle/choice on the website? I don't want to be overly negative because I think you generally do an admirable job with the ratings, but the old-style ratings were just so much easier to examine and understand at a glance. I do miss them.
A toggle still is on the to do list, but there still are a lot of higher priority tasks.

Re: Ratings - please read before commenting

Posted: 17 Apr 2021, 13:11
by computerrank
jujigatame wrote: 17 Apr 2021, 10:59 So suddenly in a couple of months he will have a big rating drop?
Yes, and time is running out for him until June 28, 2021 ...

Re: Ratings - please read before commenting

Posted: 28 Apr 2021, 05:10
by computerrank
MontyCircus wrote: 28 Apr 2021, 02:40 This Saturday, May 1

Omar Figueroa vs. Abel Ramos

Two "4½-star" fighters, showing as a "no-star" fight.
Bug in the program :KO: will be corrected with the next change :TU:

Re: Ratings - please read before commenting

Posted: 30 Apr 2021, 12:01
by Manrae
Have the annual ratings been updated to reflect any changes to the algorithm?

How did Josh Taylor end up #4 at 140lbs? Would that suggest, as of right now, that a win over Jose Zepeda would rank higher over a win over Taylor?

Re: Ratings - please read before commenting

Posted: 30 Apr 2021, 14:11
by computerrank
Manrae wrote: 30 Apr 2021, 12:01 Have the annual ratings been updated to reflect any changes to the algorithm?

How did Josh Taylor end up #4 at 140lbs? Would that suggest, as of right now, that a win over Jose Zepeda would rank higher over a win over Taylor?
What year of the annual ratings are you talking about, please?

Re: Ratings - please read before commenting

Posted: 30 Apr 2021, 14:12
by computerrank
computerrank wrote: 30 Apr 2021, 14:11
Manrae wrote: 30 Apr 2021, 12:01 Have the annual ratings been updated to reflect any changes to the algorithm?

How did Josh Taylor end up #4 at 140lbs? Would that suggest, as of right now, that a win over Jose Zepeda would rank higher over a win over Taylor?
What year of the annual ratings are you talking about, please?

I have updated the annual ratings now - including the 2020 annual ratings - pros and amateurs ...

Re: Ratings - please read before commenting

Posted: 01 May 2021, 01:52
by Manrae
computerrank wrote: 30 Apr 2021, 14:12
computerrank wrote: 30 Apr 2021, 14:11
Manrae wrote: 30 Apr 2021, 12:01 Have the annual ratings been updated to reflect any changes to the algorithm?

How did Josh Taylor end up #4 at 140lbs? Would that suggest, as of right now, that a win over Jose Zepeda would rank higher over a win over Taylor?
What year of the annual ratings are you talking about, please?

I have updated the annual ratings now - including the 2020 annual ratings - pros and amateurs ...
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?

Re: Ratings - please read before commenting

Posted: 01 May 2021, 05:21
by computerrank
Manrae wrote: 01 May 2021, 01:52
computerrank wrote: 30 Apr 2021, 14:12
computerrank wrote: 30 Apr 2021, 14:11 What year of the annual ratings are you talking about, please?

I have updated the annual ratings now - including the 2020 annual ratings - pros and amateurs ...
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?
Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?

Re: Ratings - please read before commenting

Posted: 01 May 2021, 05:22
by margaret thatcher
obviously taylor being at 4 is ridiculous

Re: Ratings - please read before commenting

Posted: 01 May 2021, 05:24
by margaret thatcher
computerrank wrote: 01 May 2021, 05:21
Manrae wrote: 01 May 2021, 01:52
computerrank wrote: 30 Apr 2021, 14:12
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?
Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?
zepada has more points than taylor, so anyone beating zeppy would be worth more than them beating taylor, wouldnt it

Re: Ratings - please read before commenting

Posted: 01 May 2021, 06:00
by computerrank
margaret thatcher wrote: 01 May 2021, 05:24
computerrank wrote: 01 May 2021, 05:21
Manrae wrote: 01 May 2021, 01:52
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?
Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?
zepada has more points than taylor, so anyone beating zeppy would be worth more than them beating taylor, wouldnt it
No that is no true. The new ratings do not only depend on the current rating, but they depend on the complete structure of the opponents' records. So for example, Pedraza stopping Zepeda would get him to 172 points, while stopping Taylor would get him to 185.7 points.

Re: Ratings - please read before commenting

Posted: 01 May 2021, 06:02
by computerrank
computerrank wrote: 01 May 2021, 06:00
margaret thatcher wrote: 01 May 2021, 05:24
computerrank wrote: 01 May 2021, 05:21 Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?
zepada has more points than taylor, so anyone beating zeppy would be worth more than them beating taylor, wouldnt it
No that is no true. The new ratings do not only depend on the current rating, but they depend on the complete structure of the opponents' records. So for example, Pedraza stopping Zepeda would get him to 172 points, while stopping Taylor would get him to 185.7 points. Linear thinking is not approriate to Whole-History Ratings.

Re: Ratings - please read before commenting

Posted: 01 May 2021, 21:08
by Manrae
computerrank wrote: 01 May 2021, 05:21
Manrae wrote: 01 May 2021, 01:52
computerrank wrote: 30 Apr 2021, 14:12
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?
Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?
I see. It's a bit confusing, but your Pedraza example made me curious... would Pedraza earn less for defeating Zepeda because they had already fought before?

If so, how would a stoppage win over Zepeda or Taylor affect a neutral opponent, like for example
Rikki Naito?
https://boxrec.com/en/proboxer/580433

Re: Ratings - please read before commenting

Posted: 02 May 2021, 10:00
by computerrank
Manrae wrote: 01 May 2021, 21:08
computerrank wrote: 01 May 2021, 05:21
Manrae wrote: 01 May 2021, 01:52
Thanks a lot :wave:

Concerning Josh Taylor's current rank, can you break down how he fell to #4? Was it because of his stay-busy defense against a no-name contender?

Also, would it mean that a win against 3# Jose Zepeda is more valuable, currently?
Josh Taylor's MD against Prograis was only in scope for 18 month due to the Boxrec winner-above-loser rule. Now his last stay-busy bout is not enough to keep his old rating.

But the winner of the scheduled bout Taylor vs Ramirez will be the new #1, in case of a draw Ramirez will be #1.

Regarding the value of a win against Zapeda - a win of whom?
I see. It's a bit confusing, but your Pedraza example made me curious... would Pedraza earn less for defeating Zepeda because they had already fought before?

If so, how would a stoppage win over Zepeda or Taylor affect a neutral opponent, like for example
Rikki Naito?
https://boxrec.com/en/proboxer/580433
Naito stops Zapeda -> Naito would have 72.04 points
Naito stops Taylor -> Naito would have 74.38 points
I seems that Taylor's record is more solid than Zepata's is for WHR.