Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lange, J (Jean-Luc)

Chess SA id

109079720

FIDE id

Date of birth

2009-03-12 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-12-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1010.9

Item	Main	Standard	Rapid	Blitz
Rating	1200.5	1175.3	817.2	500
Raw rating	1200.5	1175.3	817.2	500
Weighted rating	1200	1174.2	807.7	500
Weighted performance	834.4	815.8	0	0
Floor	731.6	736.8	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	165.7	171.7	286.1	449.5
Highest rating	1231.6 2022-02-01	1236.8 2022-02-01	1200.4 2019-02-01	1200 2024-02-01
Highest raw rating	1231.6 2022-02-01	1236.8 2022-02-01	817.2 2024-08-01	500 2024-02-01
Highest weighted rating	1231.6 2023-10-01	1236.8 2024-11-01	817.2 2024-11-01	500 2024-11-01
Highest weighted performance	1230.7 2022-02-01	1225.1 2022-04-01	1200.4 2019-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1200.5	1175.3	817.2	500
Analysis
Rating	1200.5	1175.3	817.2	500
Raw rating	1200.5	1175.3	817.2	500
Weighted rating	1200	1174.2	807.7
Weighted performance	834.4	815.8	0
K-factor	36	36	40	40
Floor	731.6	736.8	500	500
Max/Min rating change allowed	165.7	171.7	286.1	449.5
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1200.5	1175.3	817.2	500
New weighted rating	1199.9	1174.1	809.8	500
New weighted performance	828	809.6	0	0
Temp new rating	1200.5	1175.3	817.2	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1200.5	1175.3	817.2	500
New K-factor	36	36	40	40
New floor	731.6	736.8	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	13	10	3
	0	0	0
	44	39	5
	11	11	0
History	375	319	56

Games since
	Main 13	Standard 10		Rapid 3		Blitz 0
Gender	Male
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	225	90	40	-85	1120.8	1035.8
Standard	211	82	38.86	-94.7	1114.5	1019.8
Rapid	14	8	57.14	60.7	1216.2	1277
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1200.5	1175.3	817.2	500
2025-09-30	1200.5	1175.3	817.2	500
2025-09-01	1200.5	1175.3	817.2	500
2025-08-01	1200.5	1175.3	817.2	500
2025-07-01	1200.5	1175.3	817.2	500
2025-06-01	1200.5	1175.3	817.2	500
2025-05-01	1200.5	1175.3	817.2	500
2025-04-01	1200.5	1175.3	817.2	500
2025-03-01	1200.2	1175.3	817.2	500
2025-02-01	1195.9	1170.9	817.2	500
2025-01-01	1136.6	1107.7	817.2	500
2024-12-01	1214.4	1182.6	817.2	500
2024-11-01	1214.4	1182.6	817.2	500
2024-10-01	1214.4	1182.6	817.2	500
2024-09-01	1214.4	1182.6	817.2	500
2024-08-01	1214.4	1182.6	817.2	500
2024-07-01	1202.1	1182.6	738	500
2024-09-01	1202.1	1182.6	738	500
2024-05-01	1202.1	1182.6	738	500
2024-04-01	1202.1	1182.6	738	500
2024-03-01	1202.1	1182.6	738	500
2024-02-01	1202.1	1182.6	738	500
2024-01-01	1202.1	1182.6	738	500
2023-12-01	1202.1	1182.6	738	500

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gauteng Inter-Region at UJ 2024 (U16 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
2	East Rand Chess Year end Open 2024 (B)	2024-11-30	2024-11-30	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
3	2024 D6 Teams (Pool D U15)	2024-07-20	2024-07-20	Rapid	Ekurhuleni (GE)	5	3	2	Yes	Analysis
4	2022 South African Junior Team Chess Championships (U14 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
5	Ekurhuleni Soncini Playoffs 2022 (Boys)	2022-09-24	2022-09-24	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Alberton Chess Club Open 2022 (C)	2022-07-16	2022-07-16	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
7	Ekurhuleni Trials 2 2022 (U14)	2022-05-28	2022-05-28	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	Ekurhuleni Trials 1 2022 (U14)	2022-04-23	2022-04-23	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	2022 Gauteng Interregion (U14 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
10	Heidelberg Open 2022 (C)	2022-02-05	2022-02-05	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
11	Ekurhuleni Chess Open 2022 (D)	2022-01-08	2022-01-09	Standard	Ekurhuleni (GE)	7	7	5	Yes	Analysis
12	Ekurhuleni Trials (3)	2021-11-06	2021-11-06	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
13	Pinnacle College Waterfall Open (Pinnacle)	2021-10-02	2021-10-03	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
14	Springs Chess Club Open 2020 (C)	2020-01-25	2020-01-25	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
15	2019 Wild Card Chess Championship (U12 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	6	1	Yes	Analysis
16	2019 South African Junior Team Championships (U12E)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
17	GJM vs GE Inter Region 2019 (U12C)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
18	GE vs GSV Inter Regional 2019 (U10B)	2019-10-26	2019-10-26	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
19	Ekurhuleni Grand Prix 2019 (C)	2019-09-14	2019-09-14	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
20	2019 Boksburg Chess Club Round Robin (N)	2019-09-28	2019-09-28	Standard	Ekurhuleni (GE)	5	5	0	Yes	Analysis
21	2019 Gauteng School League Finals (U11 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
22	Boksburg Chess Club Open 2019 (C)	2019-07-13	2019-07-13	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
23	Ekurhuleni Trials (3)	2019-06-08	2019-06-08	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
24	Ekurhuleni South School Chess 2019 (U11 Boys)	2019-05-11	2019-05-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
25	Ekurhuleni Trials 2 2019 (U12)	2019-04-27	2019-04-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
26	Boksburg Library Rapid 2019	2019-02-02	2019-02-02	Rapid	Ekurhuleni (GE)	6	6	3	Yes	Analysis
27	Alberton Chess Club Open 2019 (C)	2019-02-23	2019-02-23	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
28	Boksburg Open 2019 (C)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
29	2018 Wild Card Chess Championships (U10 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	6	2	Yes	Analysis
30	South African Junior Team Championships 2018 (U10C)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	2	Yes	Analysis
31	Inter Region GE vs JHB Metro 2018 (U10C)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	5	0	Yes	Analysis
32	Witfield Open 2018 (D)	2018-07-21	2018-07-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
33	Boksburg Chess Club Open 2018 (U10)	2018-07-14	2018-07-14	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
34	Primrose Chess Club Open 2018 (D)	2018-06-02	2018-06-02	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
35	Ekurhuleni Trials 3 2018 (U10)	2018-06-16	2018-06-16	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
36	Dalpark Open 2018 (D)	2018-05-05	2018-05-05	Standard	Ekurhuleni (GE)	6	6	3.5	Yes	Analysis
37	Ekurhuleni Trials 2 2018 (U10)	2018-04-21	2018-04-21	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
38	JNW Club - Trinityhouse Randpark Ridge Open 2018 (D)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
39	JCC Wits 2018 (Development)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
40	Elspark Open 2018 (D)	2018-02-10	2018-02-10	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
41	Brakpan Open 2018 (D)	2018-02-24	2018-02-24	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
42	South African Junior Wildcard Championships 2017 (U10 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	6	0	Yes	Analysis
43	South African Junior Team Championships 2017 (U10C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	0	Yes	Analysis

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 2 2018				Tournament Dalpark Open 2018
		date 2018-04-21	rnd 2	type Standard	result 0.5	date 2018-05-05	rnd 2	type Standard	result 0.5
		Opponent Lombaard, W (Wj)				Opponent Pillay, Z (Zac)
2	4	Tournament Ekurhuleni Chess Open 2022				Tournament Ekurhuleni Chess Open 2022
		date 2022-01-08	rnd 3	type Standard	result 1	date 2022-01-09	rnd 6	type Standard	result 1
		Opponent Buthelezi, Z (Zanokuhle)				Opponent Botha, C (Cathri Amari)
3	3	Tournament 2022 Gauteng Interregion				Tournament Ekurhuleni Trials 1 2022
		date 2022-02-26	rnd 5	type Standard	result 0.5	date 2022-04-23	rnd 2	type Standard	result 1
		Opponent Sibanda, M (Malaika)				Opponent Lenkill, K (Keakantse)

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 2 2018				Tournament Dalpark Open 2018
		date 2018-04-21	rnd 2	type Standard	result 0.5	date 2018-05-05	rnd 2	type Standard	result 0.5
		Opponent Lombaard, W (Wj)				Opponent Pillay, Z (Zac)
2	4	Tournament Ekurhuleni Chess Open 2022				Tournament Ekurhuleni Chess Open 2022
		date 2022-01-08	rnd 3	type Standard	result 1	date 2022-01-09	rnd 6	type Standard	result 1
		Opponent Buthelezi, Z (Zanokuhle)				Opponent Botha, C (Cathri Amari)
3	3	Tournament 2022 Gauteng Interregion				Tournament Ekurhuleni Trials 1 2022
		date 2022-02-26	rnd 5	type Standard	result 0.5	date 2022-04-23	rnd 2	type Standard	result 1
		Opponent Sibanda, M (Malaika)				Opponent Lenkill, K (Keakantse)

#	Games	Start				End
1	2	Tournament 2024 D6 Teams				Tournament 2024 D6 Teams
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Mashao, L (Lerato)				Opponent Muswikila, E (Emilia)
2	2	Tournament Ekurhuleni Soncini Playoffs 2022				Tournament Ekurhuleni Soncini Playoffs 2022
		date 2022-09-24	rnd 2	type Rapid	result 1	date 2022-09-24	rnd 3	type Rapid	result 1
		Opponent Chetty, T (Teolen)				Opponent Khumalo, E (Excellence)
3	2	Tournament Boksburg Library Rapid 2019				Tournament Boksburg Library Rapid 2019
		date 2019-02-02	rnd 1	type Rapid	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Mnyakeni, G (Gosiame)				Opponent Grootboom, H (Heleen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Ekurhuleni Chess Open 2022				Tournament Ekurhuleni Chess Open 2022
		date 2022-01-08	rnd 3	type Standard	result 1	date 2022-01-09	rnd 6	type Standard	result 1
		Opponent Buthelezi, Z (Zanokuhle)				Opponent Botha, C (Cathri Amari)
2	4	Tournament Ekurhuleni Trials 2 2018				Tournament Dalpark Open 2018
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-05-05	rnd 1	type Standard	result 1
		Opponent Els, A (Anieke)				Opponent Kleyn, Z (Zonika)
3	3	Tournament Heidelberg Open 2022				Tournament Heidelberg Open 2022
		date 2022-02-05	rnd 3	type Standard	result 1	date 2022-02-05	rnd 5	type Standard	result 1
		Opponent Marais, P (Phillip)				Opponent Human, LJ (Louis)

#	Games	Start				End
1	4	Tournament Ekurhuleni Chess Open 2022				Tournament Ekurhuleni Chess Open 2022
		date 2022-01-08	rnd 3	type Standard	result 1	date 2022-01-09	rnd 6	type Standard	result 1
		Opponent Buthelezi, Z (Zanokuhle)				Opponent Botha, C (Cathri Amari)
2	4	Tournament Ekurhuleni Trials 2 2018				Tournament Dalpark Open 2018
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-05-05	rnd 1	type Standard	result 1
		Opponent Els, A (Anieke)				Opponent Kleyn, Z (Zonika)
3	3	Tournament Heidelberg Open 2022				Tournament Heidelberg Open 2022
		date 2022-02-05	rnd 3	type Standard	result 1	date 2022-02-05	rnd 5	type Standard	result 1
		Opponent Marais, P (Phillip)				Opponent Human, LJ (Louis)

#	Games	Start				End
1	2	Tournament 2024 D6 Teams				Tournament 2024 D6 Teams
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Mashao, L (Lerato)				Opponent Muswikila, E (Emilia)
2	2	Tournament Ekurhuleni Soncini Playoffs 2022				Tournament Ekurhuleni Soncini Playoffs 2022
		date 2022-09-24	rnd 2	type Rapid	result 1	date 2022-09-24	rnd 3	type Rapid	result 1
		Opponent Chetty, T (Teolen)				Opponent Khumalo, E (Excellence)
3	2	Tournament Boksburg Library Rapid 2019				Tournament Boksburg Library Rapid 2019
		date 2019-02-02	rnd 1	type Rapid	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Mnyakeni, G (Gosiame)				Opponent Grootboom, H (Heleen)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	De Vasconcelos ,T (Tiaana)	6	1	-283.3	6	1	-283.3	0	0	0	0	0	0
1	De Vasconcelos ,T (Tiaana)	6	910.9	627.5	6	900.5	627.5	0	0	0	0	0	0
2	De Swardt ,C (Chrizander)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
2	De Swardt ,C (Chrizander)	5	1126.1	956.1	5	1106.9	956.1	0	0	0	0	0	0
3	Cass ,M (Matthew)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Cass ,M (Matthew)	3	781.7	640	3	785.7	640	0	0	0	0	0	0
4	Grootboom ,C (Chante)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Grootboom ,C (Chante)	3	908.6	1050.3	3	919.5	1050.3	0	0	0	0	0	0
5	Roetz ,K (Kyle)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Roetz ,K (Kyle)	3	959.1	534.1	3	959.5	534.1	0	0	0	0	0	0
6	Weber ,C (Carla)	2	1	0	2	1	0	0	0	0	0	0	0
6	Weber ,C (Carla)	2	1140.9	1140.9	2	1130.4	1140.9	0	0	0	0	0	0
7	Botha ,CA (Cathri Amari)	2	1	0	2	1	0	0	0	0	0	0	0
7	Botha ,CA (Cathri Amari)	2	1360.5	1360.5	2	1365.2	1360.5	0	0	0	0	0	0
8	Williams ,A (Anrico)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Williams ,A (Anrico)	2	1110.9	898.4	2	1108.6	898.4	0	0	0	0	0	0
9	Human ,P (Pierre-Henri)	2	1	0	2	1	0	0	0	0	0	0	0
9	Human ,P (Pierre-Henri)	2	1296.4	1296.4	2	1287.6	1296.4	0	0	0	0	0	0
10	Zwane ,MB (Musa Bahle)	2	1	0	2	1	0	0	0	0	0	0	0
10	Zwane ,MB (Musa Bahle)	2	1124	1124	2	1118.4	1124	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Lange, J (Jean-Luc)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms