Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Zyl, C (Crystal)

Chess SA id

2090322336

FIDE id

Date of birth

2009-01-27 (U18)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

990

Item	Main	Standard	Rapid	Blitz
Rating	1191.8	1199.1	1186.8	1200
Raw rating	1165.9	1196.4	1145	1200
Weighted rating	1191.8	1199.1	1186.8	1200
Weighted performance	0	0	0	0
Floor	699.9	699.9	699.9	700
K-factor	40	40	40	36
Min/Max rating change allowed	174.1	166.7	179.3	165.8
Highest rating	1199.9 2025-06-09	1199.9 2025-06-09	1199.9 2025-06-09	1200 2025-07-01
Highest raw rating	1199.9 2025-06-09	1199.9 2025-06-09	1199.9 2025-06-09	1200 2025-07-01
Highest weighted rating	1199.9 2025-06-09	1199.9 2025-06-09	1199.9 2025-06-09	1200 2025-07-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.4	-0.2	-3.8	0
New rating	1189.4	1198.8	1183	1200
Analysis
Rating	1191.8	1199.1	1186.8	1200
Raw rating	1165.9	1196.4	1145	1200
Weighted rating	1191.8	1199.1	1186.8
Weighted performance	0	0	0
K-factor	40	40	40	36
Floor	699.9	699.9	699.9	700
Max/Min rating change allowed	174.1	166.7	179.3	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	1165.9	1196.4	1145	1200
New weighted rating	1189.4	1198.8	1183	1200
New weighted performance	0	0	0	0
Temp new rating	1189.4	1198.8	1183	1200
Temp new rating +/-	-2.4	-0.2	-3.8	0
Final new rating +/-	-2.4	-0.2	-3.8	0
New rating	1189.4	1198.8	1183	1200
New K-factor	40	40	40	36
New floor	699.9	699.9	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	17	9	8
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	17	9	8

Games since
	Main 17	Standard 9		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	17	4.5	26.47	-200	1202.4	1002.4
Standard	9	4	44.44	-47.2	1204.6	1157.3
Rapid	8	0.5	6.25	-371.9	1200.1	828.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	17	4.5	26.47	-200	1202.4	1002.4
Standard	9	4	44.44	-47.2	1204.6	1157.3
Rapid	8	0.5	6.25	-371.9	1200.1	828.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1165.9	1196.4	1145	1200
2025-09-30	1165.9	1196.4	1145	1200
2025-09-01	1165.9	1196.4	1145	1200
2025-08-01	1199.2	1199.8	1199	1200
2025-07-01	1194.8	1198.8	1193.4	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	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	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	Kempton Park Team Clusters LS 2025 (High Schools)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	4	4	0.5	Yes	Analysis
3	Ekurhuleni North School District Finals 2025 (U18 Girls)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
4	Kemptonpark School Cluster 2025 (U18)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	4	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	Kempton Park Team Clusters LS 2025 (High Schools)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	4	4	0.5	Yes	Analysis
3	Ekurhuleni North School District Finals 2025 (U18 Girls)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
4	Kemptonpark School Cluster 2025 (U18)	2025-06-07	2025-06-07	Rapid	Ekurhuleni (GE)	5	4	0	Yes	Analysis

#	Games	Start				End
1	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Nkomo, A (Asanda)				Opponent Smit, C (Chrizelle)
2	2	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 4	type Standard	result 0.5	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Matebele, K (Kim)				Opponent Mamoloko, L (Lebogo)
3	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 5	type Standard	result 0.5	date 2025-08-16	rnd 5	type Standard	result 0.5
		Opponent Holtshausen, T (Ty)				Opponent Holtshausen, T (Ty)

#	Games	Start				End
1	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Nkomo, A (Asanda)				Opponent Smit, C (Chrizelle)
2	2	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 4	type Standard	result 0.5	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Matebele, K (Kim)				Opponent Mamoloko, L (Lebogo)
3	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 5	type Standard	result 0.5	date 2025-08-16	rnd 5	type Standard	result 0.5
		Opponent Holtshausen, T (Ty)				Opponent Holtshausen, T (Ty)

#	Games	Start				End
1	1	Tournament Kempton Park Team Clusters LS 2025				Tournament Kempton Park Team Clusters LS 2025
		date 2025-07-26	rnd 3	type Rapid	result 0.5	date 2025-07-26	rnd 3	type Rapid	result 0.5
		Opponent Kgoebane, L (Lesedi)				Opponent Kgoebane, L (Lesedi)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Nkomo, A (Asanda)				Opponent Smit, C (Chrizelle)
2	1	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 5	type Standard	result 1	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Mamoloko, L (Lebogo)				Opponent Mamoloko, L (Lebogo)

#	Games	Start				End
1	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 2	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Nkomo, A (Asanda)				Opponent Smit, C (Chrizelle)
2	1	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 5	type Standard	result 1	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Mamoloko, L (Lebogo)				Opponent Mamoloko, L (Lebogo)

No games found.

#	Games	Start				End

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	Kok ,P (Phumi)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Kok ,P (Phumi)	1	1289.8	864.8	1	1324	864.8	0	0	0	0	0	0
2	Charles ,F (Farida)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Charles ,F (Farida)	1	1193.8	768.8	1	1186.8	768.8	0	0	0	0	0	0
3	Holtshausen ,T (Ty)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Holtshausen ,T (Ty)	1	1199.7	1199.7	1	1199.5	1199.7	0	0	0	0	0	0
4	Mbatha ,K (Kuhlekonke)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mbatha ,K (Kuhlekonke)	1	1235.2	810.2	1	1182.2	810.2	0	0	0	0	0	0
5	Nkomo ,A (Asanda)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nkomo ,A (Asanda)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Smit ,C (Chrizelle)	1	1	425	1	1	425	0	0	0	0	0	0
6	Smit ,C (Chrizelle)	1	1199.2	1624.2	1	1199.1	1624.2	0	0	0	0	0	0
7	Matebele ,K (Kim)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Matebele ,K (Kim)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
8	Mamoloko ,L (Lebogo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mamoloko ,L (Lebogo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Khubeka ,T (Thandolwethu)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Khubeka ,T (Thandolwethu)	1	1123.6	698.6	1	1109.8	698.6	0	0	0	0	0	0
10	Chen ,J (Jianan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Chen ,J (Jianan)	1	1163.3	738.3	0	0	0	1	1200	738.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Van Zyl, C (Crystal)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms