Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Lange, N (Nadia)

Chess SA id

2090101531

FIDE id

Date of birth

2009-11-05 (U18)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

15.9

Junior GPX Points

1183.9

Item	Main	Standard	Rapid	Blitz
Rating	1264.3	1248.2	1184.3	1200
Raw rating	1264.3	1248.2	1184.3	1200
Weighted rating	1242	1221.6	1184	1200
Weighted performance	1191.5	1211.9	0	0
Floor	784.3	770.2	740	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.3	154.8	169.6	165.8
Highest rating	1308.5 2024-09-01	1270.2 2025-07-01	1341.7 2020-02-01	1200 2018-10-01
Highest raw rating	1284.3 2025-07-01	1270.2 2025-07-01	1240 2020-03-01	1200 2024-03-01
Highest weighted rating	1284.3 2018-02-01	1270.2 2018-02-01	1240 2022-02-01	1200 2018-10-01
Highest weighted performance	1308.5 2025-07-01	1267.4 2018-08-01	1341.7 2020-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.1	0
New rating	1264.3	1248.2	1184.4	1200
Analysis
Rating	1264.3	1248.2	1184.3	1200
Raw rating	1264.3	1248.2	1184.3	1200
Weighted rating	1242	1221.6	1184
Weighted performance	1191.5	1211.9	0
K-factor	36	36	36	36
Floor	784.3	770.2	740	700
Max/Min rating change allowed	151.3	154.8	169.6	165.8
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	1264.3	1248.2	1184.3	1200
New weighted rating	1245.8	1225.1	1184.4	1200
New weighted performance	1184.1	1204.3	0	0
Temp new rating	1264.3	1248.2	1184.4	1200
Temp new rating +/-	0	0	0.1	0
Final new rating +/-	0	0	0.1	0
New rating	1264.3	1248.2	1184.4	1200
New K-factor	36	36	36	36
New floor	784.3	770.2	740	700

Item	Main	Standard	Rapid
	0	0	0
	13	13	0
	18	10	8
	5	5	0
	18	12	6
	4	4	0
History	141	121	20

Games since
	Main 31	Standard 23		Rapid 8		Blitz 0
Gender	Female
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-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	13	8	61.54	98.1	1186	1284
Standard	13	8	61.54	98.1	1186	1284
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	141	57.5	40.78	-78.4	1176.9	1098.6
Standard	121	47.5	39.26	-91.3	1173.6	1082.2
Rapid	20	10	50	0	1197.2	1197.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1264.3	1248.2	1184.3	1200
2025-09-30	1284.3	1270.2	1184.3	1200
2025-09-01	1284.3	1270.2	1184.3	1200
2025-08-01	1284.3	1270.2	1184.3	1200
2025-07-01	1284.3	1270.2	1184.3	1200
2025-06-01	1226.9	1195.1	1184.3	1200
2025-05-01	1226.9	1195.1	1184.3	1200
2025-04-01	1226.9	1195.1	1184.3	1200
2025-03-01	1226.9	1195.1	1184.3	1200
2025-02-01	1251.2	1216.7	1184.3	1200
2025-01-01	1251.2	1216.7	1184.3	1200
2024-12-01	1251.2	1216.7	1184.3	1200
2024-11-01	1251.2	1216.7	1184.3	1200
2024-10-01	1273.3	1216.7	1214.5	1200
2024-09-01	1203.3	1178.2	1214.5	1200
2024-08-01	1203.3	1178.2	1214.5	1200
2024-07-01	1160.1	1178.2	1156.5	1200
2024-09-01	1160.1	1178.2	1156.5	1200
2024-05-01	1147	1165.6	1156.5	1200
2024-04-01	1147	1165.6	1156.5	1200
2024-03-01	1147	1165.6	1156.5	1200
2024-02-01	1147	1165.6	1156.5	1200
2024-01-01	1147	1165.6	1156.5	1200
2023-12-01	1147	1165.6	1156.5	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U19 Girls)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	D6 HS Teams 2025 (Girls)	2025-05-31	2025-05-31	Standard	Ekurhuleni (GE)	5	4	4	Yes	Analysis
3	D6 SH Individual 2025 (U18 Girls)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U19 Girls)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	D6 HS Teams 2025 (Girls)	2025-05-31	2025-05-31	Standard	Ekurhuleni (GE)	5	4	4	Yes	Analysis
3	D6 SH Individual 2025 (U18 Girls)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	Gauteng Top Schools 2024 (U15 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	2024 D6 Team Finals (U15)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
6	2024 D6 Teams (Pool C U15)	2024-07-20	2024-07-20	Rapid	Ekurhuleni (GE)	5	3	3	Yes	Analysis
7	D6 High School Individual Final 2024 (U15 Girls)	2024-05-18	2024-05-18	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
8	Gauteng Schools Individual Finals 2023 (U15 Girls)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	Ekurhuleni-North Schools Teams 2022 (U13)	2022-08-06	2022-08-06	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
10	Ekurhuleni-North Schools Teams 2022 (U13 Girls)	2022-08-20	2022-08-20	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis
11	RMS Swiss For Rating of Players 2022 (U13)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis
12	Ekurhuleni-North Schools Finals Indiv 2022 (U13 Girls)	2022-05-13	2022-05-13	Standard	Ekurhuleni (GE)	5	4	3	Yes	Analysis
13	Ekurhuleni Trials (3)	2021-11-06	2021-11-06	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
14	Laerskool Oosterkruin 2020 (U11)	2020-02-01	2020-02-01	Rapid	Ekurhuleni (GE)	6	6	4	Yes	Analysis
15	Springs Chess Club Open 2020 (C)	2020-01-25	2020-01-25	Standard	Ekurhuleni (GE)	5	5	3	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	2	Yes	Analysis
19	Boksburg Chess Club Open 2019 (C)	2019-07-13	2019-07-13	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
20	Ekurhuleni Trials (3)	2019-06-08	2019-06-08	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
21	2019 Gauteng Primary Schools Individual Chess Championships (U11 Girls)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
22	Ekurhuleni North School District Finals 2019 (U11 Girls)	2019-05-11	2019-05-11	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
23	Primrose Chess Club Open 2019 (C)	2019-04-13	2019-04-13	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
24	Ekurhuleni Trials 2 2019 (U12)	2019-04-27	2019-04-27	Standard	Ekurhuleni (GE)	5	5	0	Yes	Analysis
25	Ekurhuleni Trials 1 2019 (U12)	2019-03-09	2019-03-09	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
26	Alberton Chess Club Open 2019 (C)	2019-02-23	2019-02-23	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
27	Boksburg Open 2019 (C)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
28	Ekurhuleni North District Schools Final 2018 (Primary School Reserves)	2018-08-04	2018-08-04	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
29	Ekurhuleni North Schools Individuals 2018 (U9 Girls)	2018-05-12	2018-05-12	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament D6 High School Individual Final 2024				Tournament 2024 D6 Team Finals
		date 2024-05-18	rnd 4	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Negondani, L (Livhuwani)				Opponent Sithole, H (Hleloluhle)
2	5	Tournament D6 HS Teams 2025				Tournament 2025 Gauteng Top Schools Teams
		date 2025-05-31	rnd 1	type Standard	result 1	date 2025-08-30	rnd 1	type Standard	result 1
		Opponent Khumalo, M (Mazande)				Opponent Lennon, J (Janzel-Marie)
3	5	Tournament Springs Chess Club Open 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-01-25	rnd 3	type Standard	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Maritz, S (Sune)				Opponent Phukubye, D (Dikeledi)

#	Games	Start				End
1	4	Tournament D6 HS Teams 2025				Tournament D6 HS Teams 2025
		date 2025-05-31	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Khumalo, M (Mazande)				Opponent Lukhele, N (Nelisiwe)
2	4	Tournament D6 High School Individual Final 2024				Tournament 2024 D6 Team Finals
		date 2024-05-18	rnd 4	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Negondani, L (Livhuwani)				Opponent Sithole, H (Hleloluhle)
3	4	Tournament Ekurhuleni North School District Finals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-11	rnd 3	type Standard	result 1	date 2019-05-25	rnd 1	type Standard	result 1
		Opponent Matshitela, K (Kutwane)				Opponent Van Deventer, D (Danielle)

#	Games	Start				End
1	3	Tournament 2024 D6 Teams				Tournament 2024 D6 Teams
		date 2024-07-20	rnd 1	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Constance, C (Caleb)				Opponent Matwasa, L (Lilian)
2	2	Tournament Laerskool Oosterkruin 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-01	rnd 5	type Rapid	result 1
		Opponent Bester, C (Conner)				Opponent Pretorius, A (Alex)
3	2	Tournament Laerskool Oosterkruin 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Mokoena, S (Siyanda)				Opponent Phukubye, D (Dikeledi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 2024 D6 Teams				Tournament 2024 D6 Team Finals
		date 2024-07-20	rnd 1	type Rapid	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Constance, C (Caleb)				Opponent Sithole, H (Hleloluhle)
2	5	Tournament Springs Chess Club Open 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-01-25	rnd 3	type Standard	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Maritz, S (Sune)				Opponent Phukubye, D (Dikeledi)
3	4	Tournament D6 HS Teams 2025				Tournament D6 HS Teams 2025
		date 2025-05-31	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Khumalo, M (Mazande)				Opponent Lukhele, N (Nelisiwe)

#	Games	Start				End
1	4	Tournament D6 HS Teams 2025				Tournament D6 HS Teams 2025
		date 2025-05-31	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Khumalo, M (Mazande)				Opponent Lukhele, N (Nelisiwe)
2	4	Tournament Ekurhuleni North School District Finals 2019				Tournament 2019 Gauteng Primary Schools Individual Chess Championships
		date 2019-05-11	rnd 3	type Standard	result 1	date 2019-05-25	rnd 1	type Standard	result 1
		Opponent Matshitela, K (Kutwane)				Opponent Van Deventer, D (Danielle)
3	3	Tournament Ekurhuleni-North Schools Finals Indiv 2022				Tournament Ekurhuleni-North Schools Teams 2022
		date 2022-05-13	rnd 3	type Standard	result 1	date 2022-08-06	rnd 1	type Standard	result 1
		Opponent Maake, M (Motsatsi)				Opponent Shabangu, S (Simphiwe)

#	Games	Start				End
1	3	Tournament 2024 D6 Teams				Tournament 2024 D6 Teams
		date 2024-07-20	rnd 1	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Constance, C (Caleb)				Opponent Matwasa, L (Lilian)
2	2	Tournament Laerskool Oosterkruin 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-01	rnd 5	type Rapid	result 1
		Opponent Bester, C (Conner)				Opponent Pretorius, A (Alex)
3	2	Tournament Laerskool Oosterkruin 2020				Tournament Laerskool Oosterkruin 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Mokoena, S (Siyanda)				Opponent Phukubye, D (Dikeledi)

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	Grootboom ,C (Chante)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Grootboom ,C (Chante)	4	1240.2	815.2	4	1221.8	815.2	0	0	0	0	0	0
2	Hattingh ,T (Tiaan)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Hattingh ,T (Tiaan)	2	999.5	574.5	2	1028.2	574.5	0	0	0	0	0	0
3	Van Vuuren ,M (Monique)	2	1	0	2	1	0	0	0	0	0	0	0
3	Van Vuuren ,M (Monique)	2	1137.6	1137.6	2	1124.4	1137.6	0	0	0	0	0	0
4	Manana ,M (Musa)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	Manana ,M (Musa)	2	1179.2	754.2	1	1140.8	754.2	1	1200	754.2	0	0	0
5	Matsepane ,BM (Bohlale Mutali)	2	0	-425	1	0	-425	1	0	-425	0	0	0
5	Matsepane ,BM (Bohlale Mutali)	2	1184.8	759.8	1	1200	759.8	1	1160	759.8	0	0	0
6	Van Der Merwe ,L (Logan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Van Der Merwe ,L (Logan)	2	1186.4	761.4	1	1187.2	761.4	1	1200	761.4	0	0	0
7	Van Deventer ,D (Danielle)	1	1	425	1	1	425	0	0	0	0	0	0
7	Van Deventer ,D (Danielle)	1	1235.5	1660.5	1	1242.8	1660.5	0	0	0	0	0	0
8	Mashigo ,R (Reneilwe)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mashigo ,R (Reneilwe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Arthur ,T (Ty)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Arthur ,T (Ty)	1	1086.8	661.8	1	1090.3	661.8	0	0	0	0	0	0
10	Monosi ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Monosi ,K (Katleho)	1	1203.3	778.3	1	1186	778.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Lange, N (Nadia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms