Chess South Africa Ratings Database

PLAYER PAGE

Personal

David, Z (Zhu)

Chess SA id

1110153201

FIDE id

Date of birth

2011-09-15 (U16)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1270.3	1279.2	1200	1200
Raw rating	1270.3	1279.2	1200	1200
Weighted rating	1270.3	1279.2	1200	1200
Weighted performance	0	0	0	0
Floor	770.3	779.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	150	148.1	165.8	165.8
Highest rating	1551.9 2023-03-01	1551.5 2023-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1270.3 2024-03-01	1279.2 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1270.3 2025-04-01	1279.2 2025-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1551.9 2023-03-01	1551.5 2023-03-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1270.3	1279.2	1200	1200
Analysis
Rating	1270.3	1279.2	1200	1200
Raw rating	1270.3	1279.2	1200	1200
Weighted rating	1270.3	1279.2	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	770.3	779.2	700	700
Max/Min rating change allowed	150	148.1	165.8	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	1270.3	1279.2	1200	1200
New weighted rating	1270.3	1279.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1270.3	1279.2	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1270.3	1279.2	1200	1200
New K-factor	36	36	36	36
New floor	770.3	779.2	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	11	11
	0	0
	0	0
History	11	11

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	11	7	63.64	115.9	1287.9	1403.9
Standard	11	7	63.64	115.9	1287.9	1403.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1270.3	1279.2	1200	1200
2025-09-01	1270.3	1279.2	1200	1200
2025-08-01	1270.3	1279.2	1200	1200
2025-07-01	1270.3	1279.2	1200	1200
2025-06-01	1270.3	1279.2	1200	1200
2025-05-01	1270.3	1279.2	1200	1200
2025-04-01	1270.3	1279.2	1200	1200
2025-03-01	1270.3	1279.2	1200	1200
2025-02-01	1270.3	1279.2	1200	1200
2025-01-01	1270.3	1279.2	1200	1200
2024-12-01	1270.3	1279.2	1200	1200
2024-11-01	1270.3	1279.2	1200	1200
2024-10-01	1270.3	1279.2	1200	1200
2024-09-01	1270.3	1279.2	1200	1200
2024-08-01	1270.3	1279.2	1200	1200
2024-07-01	1270.3	1279.2	1200	1200
2024-06-01	1270.3	1279.2	1200	1200
2024-08-01	1270.3	1279.2	1200	1200
2024-04-01	1270.3	1279.2	1200	1200
2024-03-01	1270.3	1279.2	1200	1200
2024-02-01	1270.3	1279.2	1200	1200
2024-01-01	1270.3	1279.2	1200	1200
2023-12-01	1270.3	1279.2	1200	1200
2023-11-01	1270.3	1279.2	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	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
2	Eden Trials 2+3 2023 (U14)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	0	0	No	Analysis
3	Eden Trails 1 2023 (U13 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis

#	Games	Start				End
1	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 3	type Standard	result 1	date 2023-05-05	rnd 4	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Moos, M (Miandro)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 4	type Standard	result 1	date 2023-03-11	rnd 5	type Standard	result 1
		Opponent Roux, K (Kristin)				Opponent Meyer, M (Mano-Lee)
3	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 2	type Standard	result 1
		Opponent Kennedy, A (Alrich)				Opponent Michaels, B (Bernard)

#	Games	Start				End
1	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 3	type Standard	result 1	date 2023-05-05	rnd 4	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Moos, M (Miandro)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 4	type Standard	result 1	date 2023-03-11	rnd 5	type Standard	result 1
		Opponent Roux, K (Kristin)				Opponent Meyer, M (Mano-Lee)
3	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 2	type Standard	result 1
		Opponent Kennedy, A (Alrich)				Opponent Michaels, B (Bernard)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 3	type Standard	result 1	date 2023-05-05	rnd 4	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Moos, M (Miandro)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 4	type Standard	result 1	date 2023-03-11	rnd 5	type Standard	result 1
		Opponent Roux, K (Kristin)				Opponent Meyer, M (Mano-Lee)
3	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 2	type Standard	result 1
		Opponent Kennedy, A (Alrich)				Opponent Michaels, B (Bernard)

#	Games	Start				End
1	2	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-05	rnd 3	type Standard	result 1	date 2023-05-05	rnd 4	type Standard	result 1
		Opponent Michaels, J (Joshua)				Opponent Moos, M (Miandro)
2	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 4	type Standard	result 1	date 2023-03-11	rnd 5	type Standard	result 1
		Opponent Roux, K (Kristin)				Opponent Meyer, M (Mano-Lee)
3	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 1	type Standard	result 1	date 2023-03-11	rnd 2	type Standard	result 1
		Opponent Kennedy, A (Alrich)				Opponent Michaels, B (Bernard)

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	Meyer ,M (Mano-Lee)	1	1	425	1	1	425	0	0	0	0	0	0
1	Meyer ,M (Mano-Lee)	1	1217.9	1642.9	1	1221.6	1642.9	0	0	0	0	0	0
2	Michaels ,B (Bernard)	1	1	425	1	1	425	0	0	0	0	0	0
2	Michaels ,B (Bernard)	1	1261.7	1686.7	1	1270.7	1686.7	0	0	0	0	0	0
3	Small ,Q (Quade)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Small ,Q (Quade)	1	1488.2	1063.2	1	1466.6	1063.2	0	0	0	0	0	0
4	Michaels ,J (Joshua)	1	1	425	1	1	425	0	0	0	0	0	0
4	Michaels ,J (Joshua)	1	1254.3	1679.3	1	1267.2	1679.3	0	0	0	0	0	0
5	Fourie ,L (Loftie)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Fourie ,L (Loftie)	1	1344.8	919.8	1	1319.4	919.8	0	0	0	0	0	0
6	Orwin ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Orwin ,M (Matthew)	1	1459	1034	1	1449.6	1034	0	0	0	0	0	0
7	Roux ,K (Kristin)	1	1	425	1	1	425	0	0	0	0	0	0
7	Roux ,K (Kristin)	1	1363.2	1788.2	1	1362.9	1788.2	0	0	0	0	0	0
8	Pietersen ,D (Delmarco)	1	1	425	1	1	425	0	0	0	0	0	0
8	Pietersen ,D (Delmarco)	1	1168.9	1593.9	1	1141.6	1593.9	0	0	0	0	0	0
9	Oordman ,C (Christiano)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Oordman ,C (Christiano)	1	1187.5	762.5	1	1200	762.5	0	0	0	0	0	0
10	Moos ,M (Miandro)	1	1	425	1	1	425	0	0	0	0	0	0
10	Moos ,M (Miandro)	1	1151.5	1576.5	1	1142.8	1576.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

David, Z (Zhu)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms