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# the elo calculation

 Posts: 2,772 Add as FriendChallenge to a DebateSend a Message 8/28/2013 8:34:50 PMPosted: 3 years agoMy understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...
 Posts: 2,772 Add as FriendChallenge to a DebateSend a Message 8/28/2013 9:23:55 PMPosted: 3 years agoI'm guessing it used team y's score post debate (instead of predebate) to calculate team x and then subtracted instead of added 25 to the instigator.If this is a systematic error then possibly everyone's elo is wrong. More likely my understanding of the calculation is off. ..
 Posts: 7,126 Add as FriendChallenge to a DebateSend a Message 8/29/2013 12:30:47 AMPosted: 3 years agoIs the formula listed somewhere? Does a K-factor influence the rating?Assistant moderator to airmax1227. PM me with any questions or concerns!
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:18:14 PMPosted: 3 years agoAt 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it."Wanting Red Rhino Pill to have gender"
 Posts: 42,241 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:20:43 PMPosted: 3 years agoAt 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.Trump's Criminal Campaign and Presidency: http://www.debate.org... Where we were, on Trump: http://www.debate.org... Russia: The Update http://www.debate.org...
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:25:00 PMPosted: 3 years agoAt 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*"Wanting Red Rhino Pill to have gender"
 Posts: 42,241 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:28:41 PMPosted: 3 years agoAt 10/29/2013 11:25:00 PM, Ore_Ele wrote:At 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*Not even a consulting fee?Trump's Criminal Campaign and Presidency: http://www.debate.org... Where we were, on Trump: http://www.debate.org... Russia: The Update http://www.debate.org...
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:31:57 PMPosted: 3 years agoAt 10/29/2013 11:28:41 PM, YYW wrote:At 10/29/2013 11:25:00 PM, Ore_Ele wrote:At 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*Not even a consulting fee?No, none of the stuff I do, have done, and probably will ever do on DDO has been for money."Wanting Red Rhino Pill to have gender"
 Posts: 42,241 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:33:06 PMPosted: 3 years agoAt 10/29/2013 11:31:57 PM, Ore_Ele wrote:At 10/29/2013 11:28:41 PM, YYW wrote:At 10/29/2013 11:25:00 PM, Ore_Ele wrote:At 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*Not even a consulting fee?No, none of the stuff I do, have done, and probably will ever do on DDO has been for money.Y u be so nice like that?Trump's Criminal Campaign and Presidency: http://www.debate.org... Where we were, on Trump: http://www.debate.org... Russia: The Update http://www.debate.org...
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:35:00 PMPosted: 3 years agoAt 10/29/2013 11:33:06 PM, YYW wrote:At 10/29/2013 11:31:57 PM, Ore_Ele wrote:At 10/29/2013 11:28:41 PM, YYW wrote:At 10/29/2013 11:25:00 PM, Ore_Ele wrote:At 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*Not even a consulting fee?No, none of the stuff I do, have done, and probably will ever do on DDO has been for money.Y u be so nice like that?Because I enjoy it. Don't worry, I'm seeing a therapist about it."Wanting Red Rhino Pill to have gender"
 Posts: 42,241 Add as FriendChallenge to a DebateSend a Message 10/29/2013 11:38:27 PMPosted: 3 years agoAt 10/29/2013 11:35:00 PM, Ore_Ele wrote:At 10/29/2013 11:33:06 PM, YYW wrote:At 10/29/2013 11:31:57 PM, Ore_Ele wrote:At 10/29/2013 11:28:41 PM, YYW wrote:At 10/29/2013 11:25:00 PM, Ore_Ele wrote:At 10/29/2013 11:20:43 PM, YYW wrote:At 10/29/2013 11:18:14 PM, Ore_Ele wrote:At 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...I will forward this to our tech guy in Juggle. While that is the mathematical equation I created and provided to Juggle. I did not code the website to make sure the math lined up. I did make an Excel macro that allowed me to calculate all the ELOs on the site prior to Juggle integrating it.I hope they paid you for that.lol.........*crying*Not even a consulting fee?No, none of the stuff I do, have done, and probably will ever do on DDO has been for money.Y u be so nice like that?Because I enjoy it.We love you too, Ore-Ele.Don't worry, I'm seeing a therapist about it.*breathing returns to normal*Trump's Criminal Campaign and Presidency: http://www.debate.org... Where we were, on Trump: http://www.debate.org... Russia: The Update http://www.debate.org...
 Posts: 2,772 Add as FriendChallenge to a DebateSend a Message 12/29/2013 3:39:54 PMPosted: 3 years agoAt 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...So in the second team debate, the original scores were team X = 1879, team Y= 2075. Team Y instigated and lost. According to the formula,D = 100*(W+9L)/10W = 109So with the instigator advantage, team Y should lose 84 points, and team X should gain 84 points.Instead, team Y lost 112 points, and team X gained 66 points.And so after two debates, where the teams have won one each, both scores are below 2000. That can't be right.
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 12/29/2013 3:58:36 PMPosted: 3 years agoIt hasn't been fixed yet. The juggle employee that put it in is no longer with juggle, so things have halted at the moment."Wanting Red Rhino Pill to have gender"
 Posts: 2,772 Add as FriendChallenge to a DebateSend a Message 12/29/2013 4:23:44 PMPosted: 3 years agoAt 12/29/2013 3:58:36 PM, Ore_Ele wrote:It hasn't been fixed yet. The juggle employee that put it in is no longer with juggle, so things have halted at the moment.No worries. It doesn't matter at all: there's just something about numbers. I think of these periodic elo readings kind of like a ship's log. Maybe a pattern will emerge.
 Posts: 4,488 Add as FriendChallenge to a DebateSend a Message 12/29/2013 11:36:18 PMPosted: 3 years agoI'm pretty sure the Elo calculation is using the Elo scores at the end of the debate rather than the beginning. I used to have a dozen or more open debates from more than two years ago. That was back when "the voting period does not end" was the default option. My Elo score could drop 25 points right after I won a debate, and it would fluctuate when a had no current debate pending. The only reason I could think of was that the Elo scores of the debaters in the old debates were changing. They have now closed all the ancient debates, and the day-to-day fluctuations have ceased.The scores at the start of the debate should be used.
 Posts: 22,652 Add as FriendChallenge to a DebateSend a Message 12/30/2013 1:08:42 AMPosted: 3 years agoAt 12/29/2013 3:58:36 PM, Ore_Ele wrote:It hasn't been fixed yet. The juggle employee that put it in is no longer with juggle, so things have halted at the moment.We all go a little mad sometimes. Dresden Files Claimslist: https://docs.google.com...
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 12/30/2013 1:10:29 AMPosted: 3 years agoAt 12/30/2013 1:08:42 AM, TUF wrote:At 12/29/2013 3:58:36 PM, Ore_Ele wrote:It hasn't been fixed yet. The juggle employee that put it in is no longer with juggle, so things have halted at the moment.Holidays have really put things on a stop. Once we get past New Years we'll be able to pick things back up and try to get them rolling again."Wanting Red Rhino Pill to have gender"
 Posts: 4,232 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:07:27 PMPosted: 3 years agoSo, if"D = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25)."And the instigator was, say a new account with 2000 elo, and the person who accepted was Mikal, (who has a massive 8,133 elo). However, let's assume this new account is extremely versatile in debating and somehow defeated Mikal, then the equation would beD=100*(2000+73197)/20000D=375.985and the new account would gain a 25 point advantage with Mikal losing 25 points.so the new account now has 2396, and Mikal now only has 8108. Am I correct?Equestrian election http://www.debate.org... This House would impose democracy http://www.debate.org... Reign of Terror is unjustified http://www.debate.org... Raise min. wage to \$10.10 http://www.debate.org...
 Posts: 25,980 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:13:19 PMPosted: 3 years agoAt 4/18/2014 5:07:27 PM, 9spaceking wrote:So, if"D = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25)."And the instigator was, say a new account with 2000 elo, and the person who accepted was Mikal, (who has a massive 8,133 elo). However, let's assume this new account is extremely versatile in debating and somehow defeated Mikal, then the equation would beD=100*(2000+73197)/20000D=375.985and the new account would gain a 25 point advantage with Mikal losing 25 points.so the new account now has 2396, and Mikal now only has 8108. Am I correct?D means "dealta" or change. So you basically have a change of 376 that BOTH sides see. Since the new guy won, his change is positive while Mikal's would be negative. The Instigator Adjustment is done seperately of this and the Instigator gains another 25 and Mikal loses another 25. So both sides see a 401 point change."Wanting Red Rhino Pill to have gender"
 Posts: 1,398 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:17:12 PMPosted: 3 years agoWhy does the instigator get an advantage?Resolved: the Zombie Apocalypse Will Happen http://www.debate.org... The most basic living cell was Intelligently Designed: http://www.debate.org... God most likely exists: http://www.debate.org...
 Posts: 372 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:22:59 PMPosted: 3 years agoAt 8/28/2013 8:34:50 PM, rross wrote:My understanding was that elo was this:W = winner's original ELOL = loser's original ELOD = change in ELOD = 100*(W+9L)/10WAnd there is a 25 point instigator advantage (meaning the instigator gets +25 and the contender gets -25).So in the recent team debate, both teams started at 2000, team X instigated and lost.Team Y gained 75 points (as they should, from the calculation)Team X should have lost 75 points, but instead it lost 121 points.How does that work?http://www.debate.org...http://www.debate.org...The first instigated debate that I won I gained about 120 ELO
 Posts: 372 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:25:00 PMPosted: 3 years agoAt 4/18/2014 5:17:12 PM, Sswdwm wrote:Why does the instigator get an advantage?Try instigating debates. They are significantly harder to win.
 Posts: 1,398 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:25:38 PMPosted: 3 years agoAt 4/18/2014 5:25:00 PM, Intrepid wrote:At 4/18/2014 5:17:12 PM, Sswdwm wrote:Why does the instigator get an advantage?Try instigating debates. They are significantly harder to win.Instigate means I create the debate, right?Resolved: the Zombie Apocalypse Will Happen http://www.debate.org... The most basic living cell was Intelligently Designed: http://www.debate.org... God most likely exists: http://www.debate.org...
 Posts: 372 Add as FriendChallenge to a DebateSend a Message 4/18/2014 5:27:02 PMPosted: 3 years agoAt 4/18/2014 5:25:38 PM, Sswdwm wrote:At 4/18/2014 5:25:00 PM, Intrepid wrote:At 4/18/2014 5:17:12 PM, Sswdwm wrote:Why does the instigator get an advantage?Try instigating debates. They are significantly harder to win.Instigate means I create the debate, right?Si senorYou will be more likely to get debaters who will be far less likely to forfeit and will actually present arguments.This, as opposed to accepting a debate then the noob forfeiting all rounds. Plus, it incentives users to instigate debates and not forfeit them.