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

Item	Main	Standard	Rapid	Blitz
Rating	1187.1	1198.6	1179.4	1200
Raw rating	1165.9	1196.4	1145	1200
Weighted rating	1187.1	1198.6	1179.4	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	-2.1	-0.2	-3.5	0
New rating	1185	1198.4	1175.9	1200
Analysis
Rating	1187.1	1198.6	1179.4	1200
Raw rating	1165.9	1196.4	1145	1200
Weighted rating	1187.1	1198.6	1179.4
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	1185	1198.4	1175.9	1200
New weighted performance	0	0	0	0
Temp new rating	1185	1198.4	1175.9	1200
Temp new rating +/-	-2.1	-0.2	-3.5	0
Final new rating +/-	-2.1	-0.2	-3.5	0
New rating	1185	1198.4	1175.9	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
2026-01-01	1165.9	1196.4	1145	1200
2025-11-30	1165.9	1196.4	1145	1200
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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	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

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	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

Ratings

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PLAYER PAGE

Personal

Van Zyl, C (Crystal)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms