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Online Barbu Ladder

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How the rating system works

Credits

Many people have been contributed to the creation of the ranking system. However, special thanks are due to:

Gerben Dirksen, for having the idea, devising the original formula, writing the first program to calculate ratings, administering it for most of the first year, and providing useful advice and mathematical assistance ever since.

Graham Hazel, without whose software none of it would have been possible.

Chris Dixon, for sorting out the problem with serving that had been causing anguish for five years.

Stephen Frechette and Aashish Welling, for giving us a brand-new web-based version of the software in 2020.

Steve Altus, David Beer, Lew Stansby, Neil Trentham and Giles Woodruff, for providing advice and comments on the ranking system.

Barbu Heroes

Monthly winners, 2024

January: Geoff Hampson

February: Mark Tynkov

March: Dana Berkowitz

April: Geoff Hampson

May: Steven De Donder

June: Geoff Hampson

Annual winners, 2003-23

2023 ladder: Ben Kristensen

2022 ladder: Mike Rice

2021 ladder: Steven De Donder

2020 ladder: Steven De Donder

2019 ladder: Steven De Donder

2018 ladder: Mark Tynkov

2017 ladder: Doron Limor

2016 ladder: Neil Trentham

2016 “Zester”: Dan Hoffenberg

2015 ladder: Alessio Isaia

2015 “Zester”: Dan Hoffenberg

2014 ladder: Doron Limor

2014 “Zester”: Dean Pokorny

2013 ladder: Ben Handley-Pritchard

2013 “Zester”: Ben Handley-Pritchard

2012 ladder: Ben Handley -Pritchard

2012 “Zester”: Ben Handley-Pritchard

2011 ladder: Fabio Lo Presti

2011 “Zester”: Willie Whitaker

2011 “Apple core”: Steve Altus

2010 ladder: Steve Altus

2010 “Zester”: Andrew Garnett

2010 “Apple core”: Steve Altus

2009 ladder: Mike Rice

2009 “Zester”: Doron Limor

2009 “Apple core”: Michael Wilkinson

2008 ladder: John Therkelsen

2008 “Zester”: Ben Handley-Pritchard

2008 “Apple core”: Fabio Lo Presti

2007 ladder: Mike Rice

2007 “Zester”: Martin Garvey

2007 “Apple core”: Tony Nunn

2006 ladder: Francesco Mazzadi

2006 “Zester”: Martin Garvey

2006 “Apple core”: David Grainger

2005 ladder: Jérome Rombaut

2005 “Zester”: Martin Garvey

2005 “Apple core”: Jérome Rombaut

2004 ladder: Joel Wooldridge

2004 “Zester”: Neil Trentham

2004 “Apple core”: Joel Wooldridge

2003 ladder: JoAnna Stansby

Ladder, 2024

Minimum games to qualify: 100.

Last updated: Sat 27 Jul 2024 11:15 (UK time)

Pos	Name	Ladder score	Current playing strength	Games	Wins	Avg. score	High score	Low score	Positive scores	Avg. playing strengh of oppo	Avg. score adj. for oppo's strength
1	Mark Tynkov	1090.8	89.3	100	34%	69.7	396	-387	72%	21.1	90.8
-	Ben Kristensen	1088.5	100.7	56	36%	83.5	417	-270	70%	5.0	88.5
2	Geoff Hampson	1084.4	90.6	267	39%	56.0	381	-487	69%	28.3	84.4
3	Steven De Donder	1084.1	90.4	308	37%	69.1	478	-433	70%	15.0	84.1
-	Zachary Grossack	1076.8	78.1	77	38%	48.2	418	-478	55%	28.6	76.8
-	Nicole Gilmore	1075.1	62.7	61	33%	43.8	414	-445	66%	31.3	75.1
-	Alessio Isaia	1068.2	71.6	52	35%	58.3	379	-312	67%	9.9	68.2
4	Dana Berkowitz	1065.3	55.4	158	35%	34.4	435	-408	61%	30.9	65.3
5	Matt Dobbs	1061.2	49.9	116	31%	35.4	436	-497	65%	25.7	61.2
6	Fabio Quai	1057.8	52.8	607	29%	29.4	406	-435	60%	28.4	57.8
-	Mike Rice	1055.7	100.3	17	24%	40.4	338	-229	53%	32.0	72.3
7	Federico Bianchi	1052.0	55.8	296	30%	22.9	454	-496	61%	29.2	52.0
-	Ben Handley-Pritchard	1048.9	81.8	16	44%	36.2	271	-330	75%	29.7	65.9
8	Beppe Mistretta	1046.4	37.0	438	28%	22.8	413	-534	59%	23.6	46.4
-	John Diamond	1045.7	61.1	61	26%	18.6	238	-339	57%	27.1	45.7
9	Marco Novara	1045.1	41.1	266	29%	22.3	365	-605	60%	22.8	45.1
10	Patric Sierzega	1045.0	45.9	474	27%	19.5	417	-553	58%	25.5	45.0
11	Marco Prestini	1040.3	33.5	322	29%	22.0	435	-429	56%	18.3	40.3
12	Michael Wilkinson	1037.9	54.2	142	27%	16.6	419	-445	51%	21.3	37.9
-	Migry Zur Campanile	1037.5	58.7	44	27%	8.9	296	-408	55%	28.7	37.6
13	JoAnna Stansby	1034.9	40.3	174	26%	12.2	414	-519	55%	22.8	34.9
14	Gaetano Damiata	1034.6	38.7	387	25%	9.1	388	-436	55%	25.5	34.6
15	Fabrizio Guttadauro	1034.4	34.8	117	25%	11.5	450	-384	54%	23.0	34.4
-	Giles Woodruff	1034.1	68.5	4	50%	127.3	263	22	100%	25.9	153.2
16	Stan Schenker	1033.8	26.0	326	31%	14.1	404	-407	55%	19.7	33.7
17	Rosalind Lin	1032.4	30.8	216	21%	4.2	388	-633	55%	28.2	32.4
18	Fabrizio Farnesi	1032.0	29.9	432	28%	12.6	389	-499	56%	19.4	32.0
19	Jaron Marcus	1031.8	41.5	462	26%	2.9	388	-484	53%	29.0	31.8
-	Chris Dixon	1030.8	47.2	95	32%	11.8	312	-413	56%	19.0	30.8
20	Silvia Saccomanno	1030.2	13.0	125	20%	13.3	367	-320	55%	16.9	30.2
21	Gianluca Lodato	1027.4	29.7	453	26%	0.5	320	-524	52%	27.0	27.4
-	John McAllister	1023.9	7.8	22	23%	6.3	267	-256	41%	20.8	27.1
-	John Parsons	1019.6	29.3	45	24%	5.0	272	-360	47%	14.6	19.7
22	Jill Levin	1019.5	18.8	335	22%	-15.3	368	-496	50%	34.7	19.5
-	Benoit Guiot	1019.5	28.7	52	37%	2.8	361	-360	52%	16.7	19.5
-	Sami Casanova	1018.5	44.9	36	33%	-17.0	261	-283	42%	35.7	18.7
-	Pete Whipple	1017.2	69.2	3	33%	60.7	143	-26	67%	42.0	102.6
-	Luc Bellicaud	1015.7	59.3	1	0%	237.0	237	237	100%	40.8	277.8
23	Joan Clark	1015.3	15.4	137	18%	-6.2	277	-392	48%	21.5	15.3
-	Stav Dan	1013.3	11.4	89	34%	53.2	498	-312	63%	-40.0	13.3
-	Bradley Johnston	1012.5	42.0	9	22%	-2.6	233	-324	44%	28.8	26.3
-	Federico Iavicoli	1012.3	59.9	2	50%	113.5	259	-32	50%	-4.1	109.4
-	Tracey B	1011.9	55.4	5	20%	4.8	113	-235	80%	38.1	42.9
-	Dan Hoffenberg	1008.4	42.5	26	12%	-8.2	192	-288	46%	17.1	9.0
24	Giorgio Caccia	1007.8	1.2	185	18%	-23.0	404	-438	46%	30.8	7.8
-	Josh Richards	1007.0	13.7	1	100%	130.0	130	130	100%	-6.6	123.4
-	Adam Grossack	1006.7	52.4	4	50%	21.5	232	-262	75%	8.4	29.9
-	Aaron Jones	1005.5	15.7	25	20%	-19.9	213	-405	44%	25.9	6.0
-	Clovis Dehaye	1003.7	46.1	32	19%	-21.3	318	-329	50%	25.1	3.8
25	Alessandro Colombo	1003.0	11.3	285	20%	-23.1	295	-418	44%	26.0	3.0
-	Goran Cekol	1001.2	71.2	3	0%	-19.7	131	-138	33%	26.8	7.2
26	Tsahi Maimon	1000.4	-0.7	307	25%	-10.1	467	-581	50%	10.5	0.4
-	Francesco Mazzadi	1000.4	28.4	3	0%	-11.0	49	-53	33%	13.2	2.2
-	Yvntn Hlmysh	1000.2	6.6	1	100%	124.0	124	124	100%	-121.1	2.9
27	Mira	997.2	5.5	335	18%	-16.0	436	-476	49%	13.2	-2.8
-	Stephen Frechette	994.6	12.7	2	0%	-87.0	-39	-135	0%	39.1	-47.9
-	Giancarlo Rosselli	994.3	6.4	42	19%	-24.4	277	-502	52%	18.7	-5.7
-	Corey Robinson	993.7	-46.6	4	0%	-46.3	150	-179	25%	17.9	-28.3
-	Tamara Hoylaerts	987.2	-12.0	31	23%	-34.7	176	-317	55%	21.6	-13.2
-	Sarit Betzalel	986.7	-78.6	3	33%	-87.0	157	-246	33%	7.6	-79.4
-	Hilto 37	985.5	8.1	15	13%	-46.1	129	-254	53%	25.7	-20.4
-	Finn Kolesnik	985.2	-32.2	2	0%	-180.5	-111	-250	0%	49.1	-131.4
-	Keiran Crowe-Mai	982.5	-50.1	1	0%	-282.0	-282	-282	0%	-29.1	-311.1
-	Myrh Tmr	982.3	-157.8	2	0%	-71.0	-9	-133	0%	-86.6	-157.6
-	Anastasia Di Lorenzo	979.5	-80.9	2	0%	-223.5	-170	-277	0%	41.6	-181.9
-	Arm Pontecom	976.7	-23.4	16	25%	-61.6	231	-315	25%	30.2	-31.5
-	Filippo Lagostena	973.8	-18.2	72	17%	-43.5	285	-335	29%	17.3	-26.2
-	Barbie W	967.6	-95.9	11	9%	-60.1	280	-285	36%	2.6	-57.5
28	Umberto Prestini	967.2	-22.2	194	20%	-61.2	440	-854	40%	28.4	-32.8
29	Maree Crawford	964.7	-35.5	357	15%	-51.3	341	-502	38%	16.0	-35.3
-	Sarina Chaiken	958.1	-48.0	20	0%	-84.6	104	-247	30%	34.9	-49.7
-	Jennifer Mourgues	954.9	3.8	29	10%	-68.3	283	-471	38%	21.3	-47.0
-	Gabriel Feldstein	951.3	-70.7	9	0%	-120.2	54	-408	22%	17.9	-102.3
-	Yaron Yaron	942.4	-103.6	11	18%	-59.4	220	-327	36%	-42.9	-102.3
30	Jackie Smith	940.8	-60.9	209	14%	-73.7	288	-578	34%	14.4	-59.2
-	Jonathan Halamish	940.1	-356.4	3	0%	-296.7	-228	-355	0%	-59.7	-356.4
31	Giorgio Peterlongo	938.4	-70.1	202	12%	-80.1	287	-521	33%	18.5	-61.6
32	Raz Betzalel	931.0	-63.3	190	13%	-72.1	354	-553	38%	3.1	-69.0
-	Orly Weil	930.1	-314.4	4	0%	-285.0	13	-483	25%	-28.8	-313.8
33	Beryel Dorscht	881.5	-107.1	155	6%	-135.3	252	-671	25%	16.8	-118.5
-	Ofir Rosenfeld	875.8	-122.7	43	12%	-89.3	287	-637	33%	-35.1	-124.5
-	Michael Yo	857.5	-134.9	79	15%	-126.8	295	-696	29%	-15.7	-142.5
-	Aharon Shaked	845.0	-182.5	20	15%	-167.2	201	-502	25%	-16.8	-183.9

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Ladder, 2024