Winning percentage

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iamachessstudent
Posts: 380
Joined: Sat Sep 06, 2008 1:35 pm

Winning percentage

Post by iamachessstudent » Thu Feb 16, 2012 12:19 pm

Does anyone know how to calculate your winning percentage for yourg ames?

I was thinking your total wins divided by the total draw plus losses but am not sure if this is right?

Help anyone??

TY somuch

Joshua

islanderfan
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Re: Winning percentage

Post by islanderfan » Thu Feb 16, 2012 12:44 pm

well since you Eugene and Cliff, cheat I would say that an * needs to be added!!!!!!! :) :lol: :lol: :lol:

jpettit
Posts: 70
Joined: Thu Jan 18, 2001 11:55 am

Re: Winning percentage

Post by jpettit » Thu Feb 16, 2012 1:36 pm

I'm not sure if I have the terminology correct, but...

My stats:
596 games played
328 wins
237 loses
31 draws (draws are overrated)

My straight winning percentage would be my number of wins divided by my total games played. Thus 328/596= 0.55, so I straight out win 55% of my games.

However, chess also has draws. A draw is worth half a win scoring-wise. So 31/2= 15.5 extra points I have picked up, which would be equivalent to 15.5 extra wins. We now add that number to my wins and calculate again. So (328+15.5)/596 = 0.58. We could call this my points percentage, for I have picked up 58% of all possible points.

If I play around with your numbers, you have a winning percentage of 62% and a points percentage of 74%. Note that this is pretty crude, as it ignores rating differences (100 wins against my cat isn't special, but even one draw against Fischer would be huge), but take it for what it is worth.

cmulligan
Posts: 173
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Location: South Carolina

Re: Winning percentage

Post by cmulligan » Thu Feb 16, 2012 1:56 pm

jpettit wrote:100 wins against my cat isn't special, but even one draw against Fischer would be huge
Yea.My cat let's me win too.He says I get whiny when I lose...I don't...I never whine...I am NOT whiny...he shouldn't say things like that about me...MOMMYYYYYYYYYYYYY!!!!!!!!!!!!!!!!!! :lol: :lol:

ecperreault
General Forum Grandmaster
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Re: Winning percentage

Post by ecperreault » Thu Feb 16, 2012 3:34 pm

10 Points per win vs a dog
20 Points per win vs a cat! (They are sneaky buggers)
6 Points per win vs a guinea pig (smelly rodents)

1 Points per win vs Islanderfan (why set the board up)
:P :roll:

islanderfan
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Re: Winning percentage

Post by islanderfan » Thu Feb 16, 2012 6:40 pm

i should get a thousand points for beating you and Josh!

ecperreault
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Re: Winning percentage

Post by ecperreault » Thu Feb 16, 2012 7:09 pm

Chess Reporter Headlines: Guinea Pig wins match vs islanderfan 3-1 !!!
schmuck.gif
LOLOLOLOLOLOL
schmuck.gif (174.47 KiB) Viewed 9246 times

ecperreault
General Forum Grandmaster
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Re: Winning percentage

Post by ecperreault » Thu Feb 16, 2012 9:56 pm

I know how you feel, Brian, when I play you. I have that same feeling in the 2 games I am playing with David S White. Man that guy is brutal !!
I played 1. h3 with White, and answered David's 1. e4 with 1... a6
If you want to follow the slaughters:
http://www.net-chess.com/viewgame.cgi?p1=g1105098827 &
http://www.net-chess.com/viewgame.cgi?p1=g1105098828

iamachessstudent
Posts: 380
Joined: Sat Sep 06, 2008 1:35 pm

Re: Winning percentage

Post by iamachessstudent » Thu Feb 16, 2012 10:03 pm

TY Jon :)

Your record is 454/95/189 (w/l/d) 738 total games

495/738= 67%

right?

cliff
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Location: Toronto
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Re: Winning percentage

Post by cliff » Fri Feb 17, 2012 2:13 pm

Hmmmmm....I think I know this one!

Divide 100 by your total number of games, so in your case, Josh, we have:

100 / 739 = 0.1353179

Then multiply by your total wins (455) plus your total draws divided two (198 / 2 = 94.5), so 455 + 94.5 = 549.5

Multiply 0.1353179 by 549.5 and you have 74.357186

For a winning percentage of 74.4 per cent!

Or, to put it another way,

100/GP x (W + (D/2)) = WP

Any help?

:)

ecperreault
General Forum Grandmaster
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Re: Winning percentage

Post by ecperreault » Fri Feb 17, 2012 2:36 pm

... and Toronto is South of Green Bay Packerland too...

islanderfan
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Re: Winning percentage

Post by islanderfan » Fri Feb 17, 2012 2:44 pm

mine if I do it by Cliff's way, is 88.93%. But then you add that I'm an Isles fan, dislike the Leafs and Habs, am always beating Eugene and Cliff, brings the total to wow look at that 100%. Someone stop me!!!!

ecperreault
General Forum Grandmaster
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Re: Winning percentage

Post by ecperreault » Fri Feb 17, 2012 5:12 pm

... THWACK !!! ...
Done.

iamachessstudent
Posts: 380
Joined: Sat Sep 06, 2008 1:35 pm

Re: Winning percentage

Post by iamachessstudent » Fri Feb 17, 2012 5:40 pm

TY CLiff

Vrian lol

thansk to every1 that helped me out
I can live with thatpercentage:)

cliff
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Re: Winning percentage

Post by cliff » Sat Feb 18, 2012 12:22 am

However, it's even more important to take into account the average rating of your opposition along with your winning percentage, really.

For instance, I have a 88.01% with 780 games, 649 wins, 75 draws, and 56 losses.. But the average rating of my opposition is only 2140, and my rating is only 2668! Josh has a 74.01% with a rating of 2877 against opponents with an average rating of 2434! So the winning percentages really tell little of the story, without the opponent's average!

Bottom line: Be Very Very Careful with statistics! Just remember they're what politicians use!

:lol: :lol: :lol:

gmiller
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Re: Winning percentage

Post by gmiller » Sat Feb 18, 2012 12:15 pm

The simplest way is:
total points/total games

Factoring in the average rating of opponents is similar to how Elo ratings are computed, so it should be fairly decent. But note the average rating field here is just an integer, so after you've completed a certain number of games, your average will never change due to rounding off of decimals.
Greg Miller

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