Ratings Contest

A website called Kaggle have regular contests where they give people a data set, and have them to predict something about the data set. They have done it for a variety of topics (e.g., tourism prediction, grant application success) and, of course, they just finished one for chess ratings.

Spurred on by Jeff Sonas (the Chessmetrics guy), there were a lot of entries, and suffice it to say, someone came up with a method that is 6.6% better than standard Elo ratings.

You can read all about it here, and wait for the follow up contest in January.

USCL 2009 Final Rating List

United States Chess League
Final 2009 Rating List

1	2617	Boris Gulko
2	2600	Hikaru Nakamura
3	2600	Giorgi Kacheishvili
4	2586	Alejandro Ramirez
5	2585	Patrick Wolff
6	2575	Alex Stripunsky
7	2574	Marko Zivanic
8	2572	Jaan Ehlvest
9	2563	Larry Christiansen
10	2562	Gregory Serper
11	2554	Julio Becerra
12	2553	Dean Ippolito
13	2552	Sergey Erenburg
14	2543	Alex Lenderman
15	2537	Jacek Stopa
16	2535	Josh Friedel
17	2535	Joel Benjamin
18	2529	Eugene Perelshteyn
19	2528	Jan van de Mortel
20	2519	Vinay Bhat
21	2515	Daniel Ludwig
22	2514	Pascal Charbonneau
23	2507	Eli Vovsha
24	2504	Blas Lugo
25	2502	Rogelio Barcenilla
26	2501	Leonid Kritz
27	2498	Marc Esserman
28	2488	Levon Altounian
29	2488	John Fedorowicz
30	2487	Bruci Lopez
31	2485	Yuri Lapshun
32	2474	Sam Shankland
33	2473	Salvijus Bercys
34	2470	Slava Mikhailuk
35	2460	Lev Milman
36	2459	Denis Shmelov
37	2455	John Donaldson
38	2453	Bryan Smith
39	2449	Dmitry Schneider
40	2446	Angelo Young
41	2446	Oleg Zaikov
42	2445	Alex Shabalov
43	2444	Marcel Martinez
44	2443	Victor Shen
45	2439	Thomas Bartell
46	2436	Jesse Kraai
47	2436	Vadim Martirosov
48	2433	Larry Kaufman
49	2433	John Bartholomew
50	2429	Jonathan Schroer
51	2424	Sergey Kudrin
52	2423	Florin Felecan
53	2418	Jorge Sammour-Hasbun
54	2416	Tegshsuren Enkhbat
55	2413	Irina Krush
56	2412	Gregory Braylovsky
57	2411	Andrei Zaremba
58	2408	Mark Ginsburg
59	2404	Anya Corke
60	2404	Alejandro Moreno Roman
61	2399	Eric Rodriguez
62	2393	Ralph Zimmer
63	2391	Jay Bonin
64	2391	Shinsaku Uesugi
65	2387	Mehmed Pasalic
66	2386	Nikola Mitkov
67	2382	Mackenzie Molner
68	2381	Yaacov Norowitz
69	2374	Ron Burnett
70	2371	Daniel Naroditsky
71	2370	Matthew Herman
72	2366	David Pruess
73	2362	Marcel Milat
74	2361	John Bick
75	2354	Gregory Young
76	2349	Aviv Friedman
77	2348	John Readey
78	2344	Danny Rensch
79	2344	David Adelberg
80	2341	Elvin Wilson
81	2339	Keaton Kiewra
82	2333	Robby Adamson
83	2333	Ilya Krasik
84	2329	Ron Simpson
85	2325	Michael Lee
86	2322	Richard Costigan
87	2318	Howard Chen
88	2315	Yian Liou
89	2315	Eric Tangborn
90	2313	Todd Andrews
91	2312	Udayan Bapat
92	2310	Sean Finn
93	2306	Anna Matlin
94	2305	Eric Rosen
95	2297	Josh Sinanan
96	2296	Jon Burgess
97	2294	Ray Kaufman
98	2293	Peter Bereolos
99	2287	Craig Jones
100	2285	Elizabeth Vicary
101	2280	Evan Rosenberg
102	2276	Bayaraa Zorigt
103	2272	Katerina Rohonyan
104	2261	Carlito Agner
105	2260	Andrew Wang
106	2254	Jennifer Shahade
107	2252	David Justice
108	2235	Daniel Fernandez
109	2232	Kavinayan Sivakumar
110	2223	Andrew Ng
111	2222	Gerald Larson
112	2217	Tsagaan Battsetseg
113	2216	Jared Defibaugh
114	2214	John Timmel
115	2213	Trevor Magness
116	2212	Leo Martinez
117	2209	Miguel Recio
118	2209	Nelson Lopez
119	2202	Arthur Shen
120	2196	Ian Harris
121	2192	Shaun Smith
122	2184	Benjamin Katz

USCL Rating List 2009 - Post Division Championships

Post division championships rating list. Good luck to both Miami and New York in the finals!

Rank	Rating	Name
1	2617	Boris Gulko
2	2600	Hikaru Nakamura
3	2586	Alejandro Ramirez
4	2585	Patrick Wolff
5	2583	Giorgi Kacheishvili
6	2575	Alex Stripunsky
7	2574	Marko Zivanic
8	2572	Jaan Ehlvest
9	2564	Julio Becerra
10	2563	Larry Christiansen
11	2562	Gregory Serper
12	2560	Pascal Charbonneau
13	2553	Dean Ippolito
14	2552	Sergey Erenburg
15	2543	Alex Lenderman
16	2537	Jacek Stopa
17	2535	Josh Friedel
18	2535	Joel Benjamin
19	2529	Eugene Perelshteyn
20	2528	Jan van de Mortel
21	2519	Vinay Bhat
22	2515	Daniel Ludwig
23	2507	Eli Vovsha
24	2502	Rogelio Barcenilla
25	2501	Leonid Kritz
26	2498	Marc Esserman
27	2491	Blas Lugo
28	2488	Levon Altounian
29	2488	John Fedorowicz
30	2487	Bruci Lopez
31	2485	Yuri Lapshun
32	2474	Sam Shankland
33	2473	Salvijus Bercys
34	2470	Slava Mikhailuk
35	2460	Lev Milman
36	2459	Denis Shmelov
37	2455	John Donaldson
38	2453	Bryan Smith
39	2449	Dmitry Schneider
40	2446	Angelo Young
41	2446	Oleg Zaikov
42	2445	Alex Shabalov
43	2444	Marcel Martinez
44	2443	Victor Shen
45	2439	Thomas Bartell
46	2436	Jesse Kraai
47	2436	Vadim Martirosov
48	2433	Larry Kaufman
49	2433	John Bartholomew
50	2429	Jonathan Schroer
51	2424	Sergey Kudrin
52	2423	Florin Felecan
53	2418	Jorge Sammour-Hasbun
54	2416	Tegshsuren Enkhbat
55	2414	Eric Rodriguez
56	2413	Irina Krush
57	2412	Gregory Braylovsky
58	2411	Andrei Zaremba
59	2408	Mark Ginsburg
60	2404	Anya Corke
61	2393	Ralph Zimmer
62	2391	Jay Bonin
63	2391	Shinsaku Uesugi
64	2387	Mehmed Pasalic
65	2387	Yaacov Norowitz
66	2386	Nikola Mitkov
67	2382	Mackenzie Molner
68	2374	Ron Burnett
69	2371	Daniel Naroditsky
70	2366	David Pruess
71	2362	Marcel Milat
72	2361	John Bick
73	2357	Alejandro Moreno Roman
74	2354	Gregory Young
75	2353	Matthew Herman
76	2349	Aviv Friedman
77	2348	John Readey
78	2344	Danny Rensch
79	2344	David Adelberg
80	2341	Elvin Wilson
81	2339	Keaton Kiewra
82	2333	Robby Adamson
83	2333	Ilya Krasik
84	2329	Ron Simpson
85	2325	Michael Lee
86	2322	Richard Costigan
87	2318	Howard Chen
88	2315	Yian Liou
89	2315	Eric Tangborn
90	2313	Todd Andrews
91	2312	Udayan Bapat
92	2310	Sean Finn
93	2306	Anna Matlin
94	2305	Eric Rosen
95	2297	Josh Sinanan
96	2296	Jon Burgess
97	2294	Ray Kaufman
98	2293	Peter Bereolos
99	2287	Craig Jones
100	2285	Elizabeth Vicary
101	2280	Evan Rosenberg
102	2276	Bayaraa Zorigt
103	2272	Katerina Rohonyan
104	2261	Carlito Agner
105	2260	Andrew Wang
106	2254	Jennifer Shahade
107	2252	David Justice
108	2235	Daniel Fernandez
109	2232	Kavinayan Sivakumar
110	2223	Andrew Ng
111	2222	Gerald Larson
112	2217	Tsagaan Battsetseg
113	2216	Jared Defibaugh
114	2214	John Timmel
115	2213	Trevor Magness
116	2212	Leo Martinez
117	2209	Miguel Recio
118	2209	Nelson Lopez
119	2202	Arthur Shen
120	2196	Ian Harris
121	2192	Shaun Smith
122	2184	Benjamin Katz

USCL Rating List - 2009 Post-Quarterfinals

Here is the unofficial USCL Rating List, for the post-quarterfinal matches. Gulko now tops the list, after Nakamura's loss.

As a reminder, here are the details of how the list is calculated. The details were described elsewhere, but here's a summary... (a) it uses a modified Glicko system; (b) there are different scores for a draw if your team won or lost (draw counts as 2/3 if your team won); (c) it accounts for color in your score expectancy; (d) uncertainty scores are automatically raised at the beginning of a season; (e) initial rating assignment depends on the board that you played; (f) all games are given equal weight (regular season, playoffs, tiebreakers).

That being said, the same conditions apply to each published list. First, the player must have played at least three lifetime games in the USCL, and second, the player must be active in the year the list is published.

Rank	Rating	Name
1	2617	Boris Gulko
2	2600	Hikaru Nakamura
3	2586	Alejandro Ramirez
4	2585	Patrick Wolff
5	2575	Alex Stripunsky
6	2574	Marko Zivanic
7	2572	Jaan Ehlvest
8	2570	Giorgi Kacheishvili
9	2566	Julio Becerra
10	2564	Pascal Charbonneau
11	2563	Larry Christiansen
12	2562	Gregory Serper
13	2552	Sergey Erenburg
14	2548	Dean Ippolito
15	2543	Joel Benjamin
16	2543	Alex Lenderman
17	2537	Jacek Stopa
18	2535	Josh Friedel
19	2529	Eugene Perelshteyn
20	2528	Jan van de Mortel
21	2527	Blas Lugo
22	2515	Daniel Ludwig
23	2507	Eli Vovsha
24	2502	Rogelio Barcenilla
25	2501	Leonid Kritz
26	2498	Marc Esserman
27	2488	Levon Altounian
28	2488	John Fedorowicz
29	2487	Bruci Lopez
30	2485	Yuri Lapshun
31	2481	Vinay Bhat
32	2474	Sam Shankland
33	2473	Salvijus Bercys
34	2470	Slava Mikhailuk
35	2460	Lev Milman
36	2459	Denis Shmelov
37	2455	John Donaldson
38	2453	Bryan Smith
39	2449	Dmitry Schneider
40	2446	Angelo Young
41	2446	Oleg Zaikov
42	2445	Alex Shabalov
43	2444	Marcel Martinez
44	2443	Victor Shen
45	2439	Thomas Bartell
46	2436	Vadim Martirosov
47	2434	David Pruess
48	2434	Jesse Kraai
49	2433	Larry Kaufman
50	2433	John Bartholomew
51	2429	Jonathan Schroer
52	2424	Sergey Kudrin
53	2423	Florin Felecan
54	2418	Jorge Sammour-Hasbun
55	2416	Tegshsuren Enkhbat
56	2413	Irina Krush
57	2413	Eric Rodriguez
58	2412	Gregory Braylovsky
59	2411	Andrei Zaremba
60	2409	Mackenzie Molner
61	2408	Mark Ginsburg
62	2404	Anya Corke
63	2393	Ralph Zimmer
64	2391	Jay Bonin
65	2391	Shinsaku Uesugi
66	2387	Mehmed Pasalic
67	2386	Nikola Mitkov
68	2383	Yaacov Norowitz
69	2374	Ron Burnett
70	2371	Daniel Naroditsky
71	2362	Marcel Milat
72	2361	John Bick
73	2354	Gregory Young
74	2349	Aviv Friedman
75	2348	John Readey
76	2344	Danny Rensch
77	2344	David Adelberg
78	2341	Elvin Wilson
79	2339	Keaton Kiewra
80	2333	Robby Adamson
81	2333	Ilya Krasik
82	2332	Matthew Herman
83	2329	Ron Simpson
84	2325	Michael Lee
85	2322	Richard Costigan
86	2318	Howard Chen
87	2317	Yian Liou
88	2317	Sean Finn
89	2315	Eric Tangborn
90	2313	Todd Andrews
91	2312	Alejandro Moreno Roman
92	2312	Udayan Bapat
93	2306	Anna Matlin
94	2305	Eric Rosen
95	2297	Josh Sinanan
96	2296	Jon Burgess
97	2294	Ray Kaufman
98	2293	Peter Bereolos
99	2287	Craig Jones
100	2285	Elizabeth Vicary
101	2280	Evan Rosenberg
102	2276	Bayaraa Zorigt
103	2272	Katerina Rohonyan
104	2261	Carlito Agner
105	2260	Andrew Wang
106	2254	Jennifer Shahade
107	2252	David Justice
108	2235	Daniel Fernandez
109	2232	Kavinayan Sivakumar
110	2223	Andrew Ng
111	2222	Gerald Larson
112	2217	Tsagaan Battsetseg
113	2216	Jared Defibaugh
114	2214	John Timmel
115	2213	Trevor Magness
116	2212	Leo Martinez
117	2209	Miguel Recio
118	2209	Nelson Lopez
119	2202	Arthur Shen
120	2196	Ian Harris
121	2192	Shaun Smith
122	2184	Benjamin Katz

United States Chess League Ratings 2009 (Week 10)

United States Chess League Ratings (after week 10)

Rank	Rating	Name
1	2621	Hikaru Nakamura
2	2617	Boris Gulko
3	2616	Alejandro Ramirez
4	2600	Gregory Serper
5	2575	Alex Stripunsky
6	2574	Marko Zivanic
7	2574	Larry Christiansen
8	2572	Jaan Ehlvest
9	2565	Sergey Erenburg
10	2561	Eugene Perelshteyn
11	2559	Giorgi Kacheishvili
12	2555	Patrick Wolff
13	2552	Julio Becerra
14	2551	Dean Ippolito
15	2543	Alex Lenderman
16	2537	Jacek Stopa
17	2535	Josh Friedel
18	2535	Joel Benjamin
19	2533	Pascal Charbonneau
20	2528	Jan van de Mortel
21	2515	Daniel Ludwig
22	2507	Eli Vovsha
23	2502	Rogelio Barcenilla
24	2501	Leonid Kritz
25	2498	Marc Esserman
26	2488	Levon Altounian
27	2488	John Fedorowicz
28	2487	Bruci Lopez
29	2485	Yuri Lapshun
30	2484	Blas Lugo
31	2479	Vinay Bhat
32	2474	Sam Shankland
33	2473	Salvijus Bercys
34	2470	Slava Mikhailuk
35	2460	Lev Milman
36	2459	Denis Shmelov
37	2455	John Donaldson
38	2453	Bryan Smith
39	2449	Dmitry Schneider
40	2446	Angelo Young
41	2446	Oleg Zaikov
42	2445	Alex Shabalov
43	2444	Marcel Martinez
44	2443	Victor Shen
45	2439	Thomas Bartell
46	2434	David Pruess
47	2434	Jesse Kraai
48	2433	Larry Kaufman
49	2433	John Bartholomew
50	2429	Jonathan Schroer
51	2424	Sergey Kudrin
52	2423	Florin Felecan
53	2418	Jorge Sammour-Hasbun
54	2417	Mackenzie Molner
55	2413	Tegshsuren Enkhbat
56	2413	Irina Krush
57	2412	Gregory Braylovsky
58	2411	Andrei Zaremba
59	2410	Eric Rodriguez
60	2408	Mark Ginsburg
61	2407	Vadim Martirosov
62	2404	Anya Corke
63	2393	Ralph Zimmer
64	2391	Jay Bonin
65	2387	Mehmed Pasalic
66	2386	Nikola Mitkov
67	2384	Shinsaku Uesugi
68	2374	Ron Burnett
69	2368	Yaacov Norowitz
70	2362	Marcel Milat
71	2361	John Bick
72	2359	Robby Adamson
73	2354	Gregory Young
74	2353	Matthew Herman
75	2349	Aviv Friedman
76	2348	John Readey
77	2346	Ilya Krasik
78	2346	Danny Rensch
79	2346	Daniel Naroditsky
80	2344	David Adelberg
81	2341	Michael Lee
82	2341	Elvin Wilson
83	2339	Keaton Kiewra
84	2329	Ron Simpson
85	2322	Richard Costigan
86	2315	Yian Liou
87	2315	Eric Tangborn
88	2313	Todd Andrews
89	2312	Udayan Bapat
90	2306	Anna Matlin
91	2305	Eric Rosen
92	2297	Josh Sinanan
93	2296	Jon Burgess
94	2294	Ray Kaufman
95	2293	Peter Bereolos
96	2291	Alejandro Moreno Roman
97	2287	Craig Jones
98	2285	Elizabeth Vicary
99	2280	Evan Rosenberg
100	2276	Bayaraa Zorigt
101	2272	Katerina Rohonyan
102	2261	Carlito Agner
103	2260	Andrew Wang
104	2256	Tsagaan Battsetseg
105	2254	Jennifer Shahade
106	2252	David Justice
107	2235	Daniel Fernandez
108	2232	Kavinayan Sivakumar
109	2223	Andrew Ng
110	2222	Gerald Larson
111	2217	Leo Martinez
112	2216	Jared Defibaugh
113	2214	John Timmel
114	2213	Trevor Magness
115	2209	Miguel Recio
116	2209	Nelson Lopez
117	2202	Arthur Shen
118	2196	Ian Harris
119	2192	Shaun Smith
120	2184	Benjamin Katz

USCL Ratings and Power Rankings: Week 9 (2009)

Arizona beats Seattle, and comes very close to overtaking them in the power rankings. Remainder of teams are rather similar, except Chicago moves up a few places after their big win over Dallas.

Power Rankings After Week 9

1 -	New Jersey	1.000
2 -	Seattle	0.919
3 -	Arizona	0.892
4 -	San Francisco	0.853
5 -	Boston	0.845
6 -	New York	0.827
7 -	Miami	0.794
8 -	Chicago	0.711
9 -	Dallas	0.673
10 -	Philadelphia	0.662
11 -	Baltimore	0.655
12 -	Tennessee	0.626
13 -	Queens	0.624
14 -	Carolina	0.596

---

Ratings After Week 9

Boris Gulko, a perfect 8-0 in his USCL career, is creeping up to the top of the ratings list. Given that he started on Board 2, he was given a provisional rating of 2450, and has now risen over 160 points. Congratulations Boris!

Rank	Rating	Name
1	2621	Hikaru Nakamura
2	2617	Boris Gulko
3	2613	Alejandro Ramirez
4	2595	Gregory Serper
5	2590	Patrick Wolff
6	2575	Sergey Erenburg
7	2574	Marko Zivanic
8	2574	Larry Christiansen
9	2572	Jaan Ehlvest
10	2561	Eugene Perelshteyn
11	2559	Joel Benjamin
12	2554	Julio Becerra
13	2551	Dean Ippolito
14	2544	Giorgi Kacheishvili
15	2543	Alex Lenderman
16	2543	Alex Stripunsky
17	2537	Jacek Stopa
18	2535	Josh Friedel
19	2533	Pascal Charbonneau
20	2532	Jan van de Mortel
21	2507	Eli Vovsha
22	2504	Levon Altounian
23	2502	Rogelio Barcenilla
24	2501	Leonid Kritz
25	2498	Marc Esserman
26	2496	Vinay Bhat
27	2494	Daniel Ludwig
28	2490	Slava Mikhailuk
29	2488	John Fedorowicz
30	2487	Bruci Lopez
31	2485	Yuri Lapshun
32	2474	Sam Shankland
33	2468	Blas Lugo
34	2458	Irina Krush
35	2455	John Donaldson
36	2450	Lev Milman
37	2449	Thomas Bartell
38	2449	Dmitry Schneider
39	2448	Salvijus Bercys
40	2446	Angelo Young
41	2445	Alex Shabalov
42	2444	Marcel Martinez
43	2444	Bryan Smith
44	2443	Victor Shen
45	2439	Oleg Zaikov
46	2436	Jonathan Schroer
47	2434	David Pruess
48	2434	Jesse Kraai
49	2433	Jorge Sammour-Hasbun
50	2433	Larry Kaufman
51	2433	John Bartholomew
52	2427	Denis Shmelov
53	2426	Mackenzie Molner
54	2424	Sergey Kudrin
55	2423	Tegshsuren Enkhbat
56	2412	Gregory Braylovsky
57	2411	Andrei Zaremba
58	2408	Mark Ginsburg
59	2403	Mehmed Pasalic
60	2400	Florin Felecan
61	2399	Eric Rodriguez
62	2391	Jay Bonin
63	2386	Nikola Mitkov
64	2384	Robby Adamson
65	2384	Shinsaku Uesugi
66	2374	Vadim Martirosov
67	2361	Ron Burnett
68	2361	John Bick
69	2358	Yaacov Norowitz
70	2354	Gregory Young
71	2354	Ralph Zimmer
72	2353	Matthew Herman
73	2350	Keaton Kiewra
74	2349	Aviv Friedman
75	2348	John Readey
76	2346	Ilya Krasik
77	2346	Danny Rensch
78	2344	David Adelberg
79	2341	Michael Lee
80	2335	Daniel Naroditsky
81	2329	Ron Simpson
82	2327	Marcel Milat
83	2323	Peter Bereolos
84	2320	Evan Rosenberg
85	2316	Richard Costigan
86	2315	Eric Tangborn
87	2312	Udayan Bapat
88	2309	Yian Liou
89	2306	Anna Matlin
90	2305	Josh Sinanan
91	2298	Todd Andrews
92	2296	Jon Burgess
93	2294	Ray Kaufman
94	2287	Craig Jones
95	2285	Bayaraa Zorigt
96	2285	Andrew Ng
97	2283	Eric Rosen
98	2272	Katerina Rohonyan
99	2260	Andrew Wang
100	2256	Tsagaan Battsetseg
101	2255	David Justice
102	2254	Jennifer Shahade
103	2244	Alejandro Moreno Roman
104	2235	Daniel Fernandez
105	2232	Kavinayan Sivakumar
106	2222	Gerald Larson
107	2217	Leo Martinez
108	2213	Trevor Magness
109	2212	Jared Defibaugh
110	2209	Miguel Recio
111	2209	Nelson Lopez
112	2207	Elizabeth Vicary
113	2196	Ian Harris
114	2192	Shaun Smith
115	2184	Benjamin Katz