Ak Womens Rankings

Akhenaten · Pro player

Ak Womens Rankings

RBBOT · Futures qualifying

I presume the formula you are using are the same as for the men? One thing I haven't seen an explanation of is exactly how you adjust the results for surface.

I'm amazed by Elena Balthacha's Ak ranking of 72. Her results in 2012 look very modest for a top 100 player.

I think that is because under this system, points don't ever 'come off' unless you lose matches, and you have to lose to lower rated players for significant changes to be made.

I think what might make for an interesting experiment is what would happen if you only took the last X years (e.g. 3 years) matches into account - i.e. reset every player to an arbitrary equal ranking 3 years ago and then rerun the process using your current formula to work out their ranking today, only looking at matches since that point in time. Because the differences in rating just after the reset would be a lot smaller under this regime, those older matches would have less impact on your rating today so making your rating more a barometer of current form than how good you were a long time ago. As to what value of X gives reasonable results...

Also, could you post the full list as a spreadsheet on Google docs?

-- Edited by RBBOT on Wednesday 12th of September 2012 06:18:00 PM

KK · Club Coach

Thank you for that. Could you slip in Jo Konta.

Akhenaten · Pro player

Oops. I still had her down as AUS!

Thanks for spotting that. I've now added Jo in. smile

Akhenaten · Pro player

This is the Top 10. Serena Williams is no. 1. What a bizarre ranking system I have! (Though I have to admit Clijsters at 4 is very arguable...)

WTA Rank	Ak Rank			Rating		Age
4	1	Serena Williams	USA	968.6		30y 11m
1	2	Victoria Azarenka	BLR	925.9		23y 1m
2	3	Maria Sharapova	RUS	918.2		25y 4m
20	4	Kim Clijsters	BEL	876.8	*	29y 3m
5	5	Petra Kvitova	CZE	876.1		22y 6m
6	6	Angelique Kerber	GER	863.9		24y 7m
8	7	Li Na	CHN	859.7		30y 6m
41	8	Venus Williams	USA	852.2		32y 2m
3	9	Agnieszka Radwanska	POL	845.8		23y 6m
7	10	Sara Errani	ITA	830.4		25y 4m

indiana · Tennis legend

Yes, Serena Williams no 1, get out of here ! wink

Interesting to see how high Laura is ( and her recent victim Kim, though is the question mark the number of tournament she's played ? ) and how relatively low Anne is.

kundalini · Specialist Reporter + Intermediate Club Player

I'm amazed by Elena Balthacha's Ak ranking of 72. Her results in 2012 look very modest for a top 100 player. Off the top of my head I would have expected her to be close to Anne's 137. Not surprised that Mel, Naomi, EWS are ranked much lower by this system.

SMC1809 · All-time great

I can't see Robyn Beddow on there.

tony_orient · ATP qualifying

Always interesting to get a different perspective on where players actually are compared to the WTA rankings and the overall top 10 looks much more in the right order than the official rankings.

Laura's ranking reflects that she has got to British No.1 (as of Monday) through beating good players rather any any nice draws, and Venus Williams position at 8 shows the difficulty of getting back up the rankings once a player is further down (i.e. running into Kerber early in both the Olympics and US Open). Clijsters is more understandable - anyone who can take Laura to two tie-breaks must be pretty good biggrin

Bally's ranking is a surprise though - she hasn't beaten a player ranked higher than 91 in 2012, is this system also based on a 12 month period or does it work differently?

Akhenaten · Pro player

SMC1809 wrote:
I can't see Robyn Beddow on there.

Robyn Beddow is at 2088.

I've only shown the Top 2000.

Helen40 · Grand Slam Champion

Hi, any chance of you updating this following the great runs by Laura and Hev?

Akhenaten · Pro player

The latest ratings... (They've also changed bit, because the previous list didn't include the Olympics or Fed Cup, which they do now.)

30	Laura Robson	732.4		18y 8m
48	Heather Watson	707.7		20y 4m
65	Elena Baltacha	683.3		29y 2m
144	Johanna Konta	604.3		21y 5m
148	Anne Keothavong	602.5		29y 1m
327	Tara Moore	487.0		20y 2m
340	Naomi Broady	482.8		22y 7m
433	Amanda Carreras	435.7		22y 5m
446	Lisa Whybourn	428.7		21y 5m
488	Melanie South	414.6		26y 5m
514	Jade Windley	405.6		22y 5m
529	Samantha Murray	398.2		25y 0m
586	Emily Webley-Smith	378.6		28y 3m
596	Anna Fitzpatrick	374.4		23y 6m
673	Katy Dunne	349.5		17y 7m
725	Nicola Slater	329.6		28y 2m
751	Lucy Brown	322.9		19y 9m
793	Jazzi Plews	309.7	*	14y 7m
984	Francesca Stephenson	249.5		19y 1m

The full list can be found here...

Mens : https://docs.google.com/open?id=0Bwm-FBTHggG2a2pKbkJ3Z0pEYXc

Womens : https://docs.google.com/open?id=0Bwm-FBTHggG2R3BncWxBd2RibzA

Helen40 · Grand Slam Champion

Thanks Akhenaten, interesting to see that Laura is 18 places above Hev in this, with Bally third.

Akhenaten · Pro player

End of the year Ak rankings

(updated to 26/11/12)

		AK Rating		Age	Wins	Played	GB Rank
31	Laura Robson	729.6		18y 10m	31	56	1
46	Heather Watson	710.7		20y 6m	33	58	2
101	Elena Baltacha	646.5	*	29y 3m	15	31	3
140	Johanna Konta	612.9		21y 6m	34	53	4
158	Anne Keothavong	594.7		29y 2m	22	56	5
278	Tara Moore	505.0		20y 3m	26	46	6
285	Samantha Murray	501.0		25y 1m	36	63	7
328	Naomi Broady	480.3		22y 8m	21	49	8
379	Amanda Carreras	456.5		22y 6m	38	59	9
397	Lisa Whybourn	443.6		21y 6m	30	54	10
471	Melanie South	415.0	*	26y 6m	15	33	11
513	Jade Windley	400.8		22y 7m	27	45	12
571	Emily Webley-Smith	373.9		28y 4m	19	51	13
623	Katy Dunne	357.1		17y 9m	30	48	14
650	Anna Fitzpatrick	346.3		23y 7m	21	43	15
700	Harriet Dart	328.0		16y 4m	35	57	16
807	Nicola Slater	295.0		28y 3m	15	36	17
812	Lucy Brown	294.0		19y 10m	14	33	18
827	Anna Smith	288.3	*	24y 3m	3	5	19
839	Eleanor Dean	284.2	*	16y 10m	17	27	20
847	Jazzi Plews	280.0		14y 8m	30	32	21
958	Francesca Stephenson	245.2		19y 3m	18	42	22
1087	Katie Boulter	208.9		16y 3m	20	36	23
1134	Maia Lumsden	194.0	*	14y 10m	14	18	24
1196	Anna Brogan	176.6		15y 3m	29	43	25
1202	Sabrina Bamburac	175.1		19y 6m	27	52	26
1252	Danielle Konotoptseva	160.4		17y 10m	23	42	27
1275	Daneika Borthwick	153.7	*	19y 6m	3	9	28
1292	Amanda Elliott	148.8	*	23y 0m	4	13	29
1334	Laura Deigman	139.0		19y 6m	16	42	30
1343	Nicole Peterson	136.2	*	20y 0m	7	14	31
1441	Alicia Barnett	109.9	*	19y 1m	10	23	32
1485	Alexandra Walker	98.3	*	20y 2m	4	11	33
1510	Georgina Sellyn	93.9	*	18y 6m	12	23	34
1532	Jessica Ren	88.1	*	18y 3m	3	10	35
1564	Lana Rush	80.6		15y 9m	26	46	36
1582	Eden Silva	75.9		16y 8m	17	40	37
1590	Emilia Banos-Gregorians	73.9	*	20y 8m	5	19	38
1625	Georgia Craven	66.8	*	18y 0m	6	14	39
1631	Gabriella Patricia Taylor	66.0	*	14y 8m	12	15	40
1647	Aimee Gibson	62.9	*	21y 3m	8	22	41
1650	Olivia Smith	62.7	*	22y 9m	3	4	42
1688	Nicola George	51.3	*	20y 3m	7	20	43
1712	Alannah Griffin	46.6		15y 11m	27	42	44
1717	Pippa Horn	44.0	*	17y 1m	3	18	45
1740	Sarah Beth Askew	36.4	*	17y 3m	7	19	46
1741	Jennifer Allan	36.0	*	22y 10m	2	9	47
1787	Ruth Seaborne	26.2	*	19y 8m	2	5	48
1793	Freya Christie	25.0		15y 0m	24	39	49
1832	Grace Dixon	16.5	*	16y 9m	8	15	50
1845	Jasmine Amber Asghar	12.4		15y 2m	17	28	51
1962	Kyria Dunford	-13.1		18y 10m	12	28	52
1967	Dominique Covington	-14.2		17y 9m	28	50	53
2011	Manisha Foster	-29.3	*	19y 3m	2	8	54
2018	Amy Sargeant	-32.6	*	22y 11m	1	3	55
2113	Sophie Watts	-56.0	*	18y 2m	4	16	56
2121	Hollie Bees	-58.6	*	28y 8m	6	16	57
2182	Millie Stretton	-75.4		15y 6m	16	28	58
2197	Brigit Folland	-79.1	*	17y 7m	8	20	59
2216	Natasha Starling	-84.6	*	22y 0m	3	13	60
2219	Rebecca Smaller	-85.4	*	16y 10m	13	25	61
2231	Mirabelle Njoze	-88.1		15y 9m	12	29	62
2241	Jazzamay Drew	-90.2	*	18y 4m	4	16	63
2347	Georgina Bastick	-120.1	*	20y 7m	6	13	64
2388	Anastasia Mikheeva	-129.6	*	13y 6m	4	5	65
2431	Robyn Beddow	-140.0	*	19y 3m	3	17	66
2441	Ella Taylor	-141.2	*	17y 5m	5	12	67
2468	Emily Crowe	-148.7	*	20y 9m	2	5	68
2502	Savannah Sills	-159.3	*	15y 8m	14	24	69
2605	Lauren McMinn	-187.3	*	19y 4m	5	11	70
2641	Sabrina Federici	-197.5	*	16y 6m	5	9	71
2650	Anna Woosley	-199.4	*	17y 11m	6	12	72
2692	Elisha Hande	-211.3	*	20y 3m	1	3	73
2698	Morven Mcculloch	-212.2	*	18y 9m	3	5	74
2707	Anneka Watts	-214.6	*	18y 2m	1	12	75
2724	Kathryn Hughes	-218.3	*	17y 7m	11	17	76
2732	Emily Arbuthnott	-220.1	*	15y 1m	5	11	77
2774	Anna Popescu	-230.6	*	15y 4m	7	14	78
2808	Emily Dunne	-239.9	*	17y 0m	2	7	79
2809	Pippa Carr	-240.1	*	16y 7m	3	8	80

-- Edited by Akhenaten on Tuesday 27th of November 2012 12:50:09 PM

indiana · Tennis legend

Laura at no 32, what matches has she won then ? smile Good to see how her great performances in sometimes not great draws show up here. She should undoubtably rise quite a bit further up the official rankings in the first half of next year ( as should Heather ), given her points spread, but some nice draws might help too.

I know we haven't got great depth in the senior women, but very interesting to see how the juniors, generally with the notable exception of Harriet Dart through their junior results, are making waves in these rankings. Jazzi Plews, in particular, has had a very promising year.

Sam Murray clearly had had quite a jump as officially too ( and continuing her good work this week ), although I see we have only 5 top 300 players in these rankings with Tara, Sam, Naomi and Lisa, who are top 300 official rankings players outside the top 300 here, indeed Lisa outside the top 400. So, not great, overall, outside the top 5, although the real senior drop-off and lack of numbers in seniors is after about the first dozen or so. After Fitzy, Nicola Slater seems to be considering at least her singles future and Anna Smith is on her way back up ( one hopes ) after injury, otherwise it is generally the young uns.

Hopefully quite a number of them ( at least the very promising ones ) will manage to avoid the Borwell college snare in the coming years, good though I am sure it is for some, if only because Steven has a top 25 table to fill up !

I see one GB top 20 player, inside the world top 1000, is not far off ranked 2500 here, which I am afraid is much closer to the truth.

-- Edited by indiana on Thursday 22nd of November 2012 07:02:25 PM