BoxRec

computerrank wrote: ↑19 Feb 2021, 05:42

JCS wrote: ↑18 Feb 2021, 17:37 Martin...

As a result of the new rule, I'm curious what the biggest differences are in the all-time ratings?

The new rule shows no impact to the all-time ratings. The new rule only is applied ad hoc for the current ratings. The WHR ratings are not touched.

Manrae wrote: ↑24 Feb 2021, 03:20

computerrank wrote: ↑19 Feb 2021, 05:42

JCS wrote: ↑18 Feb 2021, 17:37 Martin...

As a result of the new rule, I'm curious what the biggest differences are in the all-time ratings?

The new rule shows no impact to the all-time ratings. The new rule only is applied ad hoc for the current ratings. The WHR ratings are not touched.

Does this mean that there's no change in the annual ratings?

JCS wrote: ↑23 Feb 2021, 21:07 Here's an interesting one Martin...

Have you ever done a year-by-year study of the strength of schedules across boxing? May be a tough one to judge fairly across eras....

Curious how bad 2020 was in comparison to past years... and how 2021 is looking.

mike1989 wrote: ↑23 Feb 2021, 15:59

computerrank wrote: ↑22 Feb 2021, 17:56

mike1989 wrote: ↑22 Feb 2021, 17:14

How does the current rating points change depending on the opposition ??? Let's take Anthony Joshua the period since the fight against Alexander Povetkin ???

You mean the ratings of Joshua after each of his bouts regarding all bouts of all boxers before each of those bouts. The current ratings in that sense are not available for the past. WHR shows the ratings at time of each bout regarding all bouts before and after that bout. And it would consume far to much computer ressources to calculate those ratings daily, with all those daily new and changed results in history.

Yes

mike1989 wrote: ↑24 Feb 2021, 16:46

mike1989 wrote: ↑23 Feb 2021, 15:59

computerrank wrote: ↑22 Feb 2021, 17:56 You mean the ratings of Joshua after each of his bouts regarding all bouts of all boxers before each of those bouts. The current ratings in that sense are not available for the past. WHR shows the ratings at time of each bout regarding all bouts before and after that bout. And it would consume far to much computer ressources to calculate those ratings daily, with all those daily new and changed results in history.

Yes

Martin, you didn't answer my question, did you?

computerrank wrote: ↑24 Feb 2021, 10:14

Manrae wrote: ↑24 Feb 2021, 03:20

computerrank wrote: ↑19 Feb 2021, 05:42 The new rule shows no impact to the all-time ratings. The new rule only is applied ad hoc for the current ratings. The WHR ratings are not touched.

Does this mean that there's no change in the annual ratings?

There was an other change in Boxrec ratings due to giving less weighting for wins on points over only few rounds. Before a 10 rounds win on points for example had a weighting of 100% and also has now. But a 4 rounds win on points had a weighting of 40% and now only has 16%. Stopped bouts always have a weighting of 100%. As a result most boxers have less points now. That at most changes the lower ratings and for women more than for men.

In March I will update the annual ratings.

computerrank wrote: ↑24 Feb 2021, 18:17

mike1989 wrote: ↑24 Feb 2021, 16:46

mike1989 wrote: ↑23 Feb 2021, 15:59

Yes

Martin, you didn't answer my question, did you?

Michael, I did - The current ratings in that sense are not available for the past. WHR shows the ratings at time of each bout regarding all bouts before and after that bout. And it would consume far to much computer ressources to calculate those ratings daily, with all those daily new and changed results in history.

mike1989 wrote: ↑25 Feb 2021, 11:23

computerrank wrote: ↑24 Feb 2021, 18:17

mike1989 wrote: ↑24 Feb 2021, 16:46

Martin, you didn't answer my question, did you?

Michael, I did - The current ratings in that sense are not available for the past. WHR shows the ratings at time of each bout regarding all bouts before and after that bout. And it would consume far to much computer ressources to calculate those ratings daily, with all those daily new and changed results in history.

Martin says that the current rating system is not a mathematical formula that applies to everyone equally. And the decision of the council which applies the decision to whom to put in what place in the rating ??? At least it looks like this.

computerrank wrote: ↑25 Feb 2021, 13:31

mike1989 wrote: ↑25 Feb 2021, 11:23

computerrank wrote: ↑24 Feb 2021, 18:17 Michael, I did - The current ratings in that sense are not available for the past. WHR shows the ratings at time of each bout regarding all bouts before and after that bout. And it would consume far to much computer ressources to calculate those ratings daily, with all those daily new and changed results in history.

Martin says that the current rating system is not a mathematical formula that applies to everyone equally. And the decision of the council which applies the decision to whom to put in what place in the rating ??? At least it looks like this.

It is a mathematical formula - look here, but a bit more than just add and multiply ... it is more complex ...

mike1989 wrote: ↑25 Feb 2021, 18:19

computerrank wrote: ↑25 Feb 2021, 13:31

mike1989 wrote: ↑25 Feb 2021, 11:23

Martin says that the current rating system is not a mathematical formula that applies to everyone equally. And the decision of the council which applies the decision to whom to put in what place in the rating ??? At least it looks like this.

It is a mathematical formula - look here, but a bit more than just add and multiply ... it is more complex ...

the mathematical formula must be understandable and applicable to everyone equally, without exception. If this is a mathematical formula then, Martin, give an example? if you can't? This is not a formula, but a policy.

computerrank wrote: ↑26 Feb 2021, 03:16

mike1989 wrote: ↑25 Feb 2021, 18:19

computerrank wrote: ↑25 Feb 2021, 13:31 It is a mathematical formula - look here, but a bit more than just add and multiply ... it is more complex ...

the mathematical formula must be understandable and applicable to everyone equally, without exception. If this is a mathematical formula then, Martin, give an example? if you can't? This is not a formula, but a policy.

That would limit the ratings algorithm to simple maths. Boxrec policy is to apply the most precise algorithm available.

mike1989 wrote: ↑28 Feb 2021, 07:41 in Joseph Parker, after the fight against Junior Fa, the current point dropped from 85.3 points to 55.93 points, but in the ratings, Joseph Parker's point remained 85.3. why?

margaret thatcher wrote: ↑01 Mar 2021, 14:51 mike is question machine, it's like an interrogation, kinda obsessive

mike1989 wrote: ↑06 Mar 2021, 06:18 why did the designation disappear with such a symbol * of the fighters who will have battles ????

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.

felinoboxing wrote: ↑24 Mar 2021, 22:36 Hi .. Do you know sofifa? There ratings are given to soccer players. I think, it would be good to add search options similar to those that this site has. I would suggest adding the option to search for boxers by year of birth and to classify them in an age range. Can they do it in Boxrec?

It would be great to see the best under-25, under-23, under-20, or the best of those born in a specific year in the world according to an algorithm. They can do it?

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 ...