Chess South Africa Ratings Database

PLAYER PAGE

Personal

Isaacs, N (Nontlahla)

Chess SA id

2040098799

FIDE id

Date of birth

2004-08-07 (Adult)

Gender

Female

Region

Namakwa (NCN)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-09-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1313.7	1316.7	1210.8	1200
Raw rating	1313.7	1316.7	1210.8	1200
Weighted rating	1312.2	1315.3	1209.2	1200
Weighted performance	761.6	570.8	0	0
Floor	822.5	824.8	710.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	141	140.4	163.3	165.8
Highest rating	1633.9 2018-03-01	1633.9 2018-03-01	1257.7 2024-08-01	1200 2018-10-01
Highest raw rating	1322.5 2024-02-01	1324.8 2024-02-01	1210.8 2024-09-01	1200 2024-02-01
Highest weighted rating	1322.5 2024-02-01	1324.8 2024-02-01	1208 2025-08-01	1200 2018-10-01
Highest weighted performance	1633.9 2018-03-01	1633.9 2018-03-01	1257.7 2024-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1313.7	1316.7	1210.8	1200
Analysis
Rating	1313.7	1316.7	1210.8	1200
Raw rating	1313.7	1316.7	1210.8	1200
Weighted rating	1312.2	1315.3	1209.2
Weighted performance	761.6	570.8	0
K-factor	36	36	36	36
Floor	822.5	824.8	710.8	700
Max/Min rating change allowed	141	140.4	163.3	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	1313.7	1316.7	1210.8	1200
New weighted rating	1312.2	1315.3	1209.5	1200
New weighted performance	754.2	563.1	0	0
Temp new rating	1313.7	1316.7	1210.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1313.7	1316.7	1210.8	1200
New K-factor	36	36	36	36
New floor	822.5	824.8	710.8	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	13	8	5
	0	0	0
	0	0	0
	0	0	0
History	60	55	5

Games since
	Main 13	Standard 8		Rapid 5		Blitz 0
Gender	Female
Age group	Adult
Region	Namakwa (NCN)
Province	Northern Cape (NC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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	60	39.5	65.83	134.6	1163.7	1298.3
Standard	55	36.5	66.36	139.1	1163.2	1302.3
Rapid	5	3	60	85	1168.7	1253.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1313.7	1316.7	1210.8	1200
2025-09-30	1313.7	1316.7	1210.8	1200
2025-09-01	1313.7	1316.7	1210.8	1200
2025-08-01	1313.7	1316.7	1210.8	1200
2025-07-01	1313.7	1316.7	1210.8	1200
2025-06-01	1313.7	1316.7	1210.8	1200
2025-05-01	1313.7	1316.7	1210.8	1200
2025-04-01	1313.7	1316.7	1210.8	1200
2025-03-01	1313.7	1316.7	1210.8	1200
2025-02-01	1312.5	1315.3	1210.8	1200
2025-01-01	1292.4	1293.1	1210.8	1200
2024-12-01	1292.4	1293.1	1210.8	1200
2024-11-01	1292.4	1293.1	1210.8	1200
2024-10-01	1314.8	1324.8	1210.8	1200
2024-09-01	1314.8	1324.8	1210.8	1200
2024-08-01	1322.5	1324.8	1200	1200
2024-07-01	1322.5	1324.8	1200	1200
2024-09-01	1322.5	1324.8	1200	1200
2024-05-01	1322.5	1324.8	1200	1200
2024-04-01	1322.5	1324.8	1200	1200
2024-03-01	1322.5	1324.8	1200	1200
2024-02-01	1322.5	1324.8	1200	1200
2024-01-01	1322.5	1324.8	1200	1200
2023-12-01	1322.5	1324.8	1200	1200

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	CoSACSA Summer Ball 2024 (Female)	2024-09-23	2024-09-26	Standard	King Cetshwayo (KUR)	9	8	4	Yes	Analysis
2	West Coast College Inter Campus 2024	2024-08-03	2024-08-03	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
3	Namakwa Distrik Proewe 2020 (U18 Girls)	2020-03-14	2020-03-14	Standard	Namakwa (NCN)	5	4	3	Yes	Analysis
4	Namakwa Skaak 2019 (O16)	2019-08-03	2019-08-03	Standard	Namakwa (NCN)	5	5	4.5	Yes	Analysis
5	Northern Cape Trails 2019 (U15 Girls)	2019-06-13	2019-06-13	Standard	ZF Mgcawu (NZF)	5	5	2	Yes	Analysis
6	Namakwa Proewe 2019 (U15 Girls)	2019-03-02	2019-03-02	Standard	Namakwa (NCN)	5	5	4	Yes	Analysis
7	Namakwa Skaak Ope 2019 (O16)	2019-02-16	2019-02-16	Standard	Namakwa (NCN)	5	4	4	Yes	Analysis
8	Northern Cape Closed Chess Championships 2018 (U16 Girls)	2018-08-31	2018-09-01	Standard	Frances Baard (NCF)	5	4	2	Yes	Analysis
9	Namakwa Proewe 2018 (O16)	2018-08-04	2018-08-04	Standard	Namakwa (NCN)	5	5	3	Yes	Analysis
10	NC Provincial Schools Eliminations 2018 (U15 Girls)	2018-06-23	2018-06-23	Standard	Frances Baard (NCF)	5	5	3	Yes	Analysis
11	Inter Regional 2018 (U16 Team)	2018-05-04	2018-05-05	Standard	Frances Baard (NCF)	5	5	2	Yes	Analysis
12	Namakwa Distrik Skaak Proewe 2018 (O13+O15 Dogters)	2018-03-17	2018-03-17	Standard	Namakwa (NCN)	5	5	5	Yes	Analysis

#	Games	Start				End
1	8	Tournament Namakwa Skaak 2019				Tournament Namakwa Distrik Proewe 2020
		date 2019-08-03	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Cloete, M (Megan)				Opponent Baker, L (Leone)
2	6	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Muller, Z (Zaden)				Opponent Cloete, M (Megan)
3	5	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Distrik Skaak Proewe 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 5	type Standard	result 1
		Opponent Baker, L (Leone)				Opponent Jacobs, T (Toschia)

#	Games	Start				End
1	8	Tournament Namakwa Skaak 2019				Tournament Namakwa Distrik Proewe 2020
		date 2019-08-03	rnd 1	type Standard	result 1	date 2020-03-14	rnd 3	type Standard	result 1
		Opponent Cloete, M (Megan)				Opponent Baker, L (Leone)
2	6	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Muller, Z (Zaden)				Opponent Cloete, M (Megan)
3	5	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Distrik Skaak Proewe 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 5	type Standard	result 1
		Opponent Baker, L (Leone)				Opponent Jacobs, T (Toschia)

#	Games	Start				End
1	2	Tournament West Coast College Inter Campus 2024				Tournament West Coast College Inter Campus 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-03	rnd 4	type Rapid	result 1
		Opponent Melloy, G (Graeme)				Opponent Mtsewu, Z (Zintle)
2	1	Tournament West Coast College Inter Campus 2024				Tournament West Coast College Inter Campus 2024
		date 2024-08-03	rnd 1	type Rapid	result 1	date 2024-08-03	rnd 1	type Rapid	result 1
		Opponent Mabeba, M (Modiri)				Opponent Mabeba, M (Modiri)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Muller, Z (Zaden)				Opponent Cloete, M (Megan)
2	5	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Distrik Skaak Proewe 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 5	type Standard	result 1
		Opponent Baker, L (Leone)				Opponent Jacobs, T (Toschia)
3	4	Tournament Namakwa Skaak 2019				Tournament Namakwa Skaak 2019
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Cloete, M (Megan)				Opponent Roesch, S (Samuel)

#	Games	Start				End
1	6	Tournament Namakwa Skaak Ope 2019				Tournament Namakwa Proewe 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-03-02	rnd 2	type Standard	result 1
		Opponent Muller, Z (Zaden)				Opponent Cloete, M (Megan)
2	5	Tournament Namakwa Distrik Skaak Proewe 2018				Tournament Namakwa Distrik Skaak Proewe 2018
		date 2018-03-17	rnd 1	type Standard	result 1	date 2018-03-17	rnd 5	type Standard	result 1
		Opponent Baker, L (Leone)				Opponent Jacobs, T (Toschia)
3	4	Tournament Namakwa Skaak 2019				Tournament Namakwa Skaak 2019
		date 2019-08-03	rnd 1	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Cloete, M (Megan)				Opponent Roesch, S (Samuel)

#	Games	Start				End
1	2	Tournament West Coast College Inter Campus 2024				Tournament West Coast College Inter Campus 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-03	rnd 4	type Rapid	result 1
		Opponent Melloy, G (Graeme)				Opponent Mtsewu, Z (Zintle)
2	1	Tournament West Coast College Inter Campus 2024				Tournament West Coast College Inter Campus 2024
		date 2024-08-03	rnd 1	type Rapid	result 1	date 2024-08-03	rnd 1	type Rapid	result 1
		Opponent Mabeba, M (Modiri)				Opponent Mabeba, M (Modiri)

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	Drage ,E (Elouise)	3	3	425	3	3	425	0	0	0	0	0	0
1	Drage ,E (Elouise)	3	1216.2	1641.2	3	1219.1	1641.2	0	0	0	0	0	0
2	Baker ,L (Leone)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Baker ,L (Leone)	3	1165.5	1307.1	3	1161.2	1307.1	0	0	0	0	0	0
3	Milford ,ZM (Zoe Melissa)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Milford ,ZM (Zoe Melissa)	2	1346.4	921.4	2	1348	921.4	0	0	0	0	0	0
4	Jacobs ,T (Toschia)	2	2	425	2	2	425	0	0	0	0	0	0
4	Jacobs ,T (Toschia)	2	1160.4	1585.4	2	1153.1	1585.4	0	0	0	0	0	0
5	Cloete ,M (Megan)	2	2	425	2	2	425	0	0	0	0	0	0
5	Cloete ,M (Megan)	2	1181.7	1606.7	2	1177.8	1606.7	0	0	0	0	0	0
6	Visagie ,J (Jerell)	2	2	425	2	2	425	0	0	0	0	0	0
6	Visagie ,J (Jerell)	2	1204.9	1629.9	2	1205.3	1629.9	0	0	0	0	0	0
7	Muller ,Z (Zaden)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Muller ,Z (Zaden)	2	1178.8	1391.2	2	1174.4	1391.2	0	0	0	0	0	0
8	Vries ,R (Ruwayline)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Vries ,R (Ruwayline)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Betheni ,N (Nosipho)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Betheni ,N (Nosipho)	1	1415.4	990.4	1	1354.7	990.4	0	0	0	0	0	0
10	Roesch ,S (Samuel)	1	1	425	1	1	425	0	0	0	0	0	0
10	Roesch ,S (Samuel)	1	1213.7	1638.7	1	1226.2	1638.7	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

Isaacs, N (Nontlahla)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms