Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zhu, D (David)

Chess SA id

1110108602

FIDE id

Date of birth

2011-09-15 (U16)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1334.2	1404.6	1124	1200
Raw rating	1334.2	1404.6	1124	1200
Weighted rating	1332.3	1404.6	1117.2	1200
Weighted performance	906.1	846.8	0	0
Floor	872.9	904.6	700	700
K-factor	36	32	36	36
Min/Max rating change allowed	137	123.9	184.8	165.8
Highest rating	1387.9 2022-04-01	1404.6 2024-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1372.9 2022-05-01	1404.6 2024-02-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1331.2 2025-08-01	1404.6 2025-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1387.9 2022-04-01	1385.4 2022-04-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1334.2	1404.6	1124	1200
Analysis
Rating	1334.2	1404.6	1124	1200
Raw rating	1334.2	1404.6	1124	1200
Weighted rating	1332.3	1404.6	1117.2
Weighted performance	906.1	846.8	0
K-factor	36	32	36	36
Floor	872.9	904.6	700	700
Max/Min rating change allowed	137	123.9	184.8	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	1334.2	1404.6	1124	1200
New weighted rating	1332.6	1404.6	1118.4	1200
New weighted performance	898.6	838.2	0	0
Temp new rating	1334.2	1404.6	1124	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1334.2	1404.6	1124	1200
New K-factor	36	32	36	36
New floor	872.9	904.6	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	5	0	5
	9	5	4
	26	15	11
	0	0	0
History	69	49	20

Games since
	Main 5	Standard 0		Rapid 5		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	69	37.5	54.35	37	1240.5	1277.5
Standard	49	30	61.22	95.4	1218.9	1314.3
Rapid	20	7.5	37.5	-106.2	1293.6	1187.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1334.2	1404.6	1124	1200
2025-09-30	1334.2	1404.6	1124	1200
2025-09-01	1334.2	1404.6	1124	1200
2025-08-01	1334.2	1404.6	1124	1200
2025-07-01	1334.2	1404.6	1124	1200
2025-06-01	1334.2	1404.6	1124	1200
2025-05-01	1334.2	1404.6	1124	1200
2025-04-01	1334.2	1404.6	1124	1200
2025-03-01	1334.2	1404.6	1124	1200
2025-02-01	1334.2	1404.6	1124	1200
2025-01-01	1334.2	1404.6	1124	1200
2024-12-01	1334.2	1404.6	1124	1200
2024-11-01	1334.2	1404.6	1124	1200
2024-10-01	1325.6	1404.6	1093.2	1200
2024-09-01	1325.6	1404.6	1093.2	1200
2024-08-01	1325.6	1404.6	1093.2	1200
2024-07-01	1325.6	1404.6	1093.2	1200
2024-09-01	1325.6	1404.6	1093.2	1200
2024-05-01	1325.6	1404.6	1093.2	1200
2024-04-01	1325.6	1404.6	1093.2	1200
2024-03-01	1325.6	1404.6	1093.2	1200
2024-02-01	1325.6	1404.6	1093.2	1200
2024-01-01	1325.6	1404.6	1093.2	1200
2023-12-01	1325.6	1404.6	1093.2	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	George Suid Senior Skaaktoernooi 2024	2024-10-26	2024-10-26	Rapid	Eden (WEG)	5	5	2.5	Yes	Analysis
2	Knysna Oyster Festival 2023 (Juniors)	2023-07-01	2023-07-01	Rapid	Eden (WEG)	6	4	2	Yes	Analysis
3	2023 Knysna School Trials #1 (U13)	2023-02-04	2023-02-04	Standard	Eden (WEG)	5	5	4	Yes	Analysis
4	Knysna Oyster Festival Rapid Chess 2022 (B)	2022-07-02	2022-07-02	Rapid	Eden (WEG)	5	5	1	Yes	Analysis
5	Knysna Inter School July 2022	2022-07-06	2022-07-06	Rapid	Eden (WEG)	6	6	2	Yes	Analysis
6	Eden Proewe 2 2022 (O11 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	Eden Proewe 1 2022 (O11 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	4	Yes	Analysis
8	Knysna School Trials 2022 (U7-U11)	2022-02-26	2022-02-26	Standard	Eden (WEG)	5	5	4	Yes	Analysis
9	Eden Schools Closed Trials 1 2020 (U9 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	3	Yes	Analysis
10	Knysna School Trials Round 2 2020 (Juniors)	2020-02-22	2020-02-22	Standard	Eden (WEG)	5	5	4	Yes	Analysis
11	Knysna School Trials #1 2020	2020-01-25	2020-01-25	Standard	Eden (WEG)	5	5	2	Yes	Analysis
12	Eden Trials 3 2019 (U10 Open)	2019-05-11	2019-05-11	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
13	Knysna School Trials #2 2019	2019-02-16	2019-02-16	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
14	Knysna School Trials #1 2019	2019-02-02	2019-02-02	Standard	Eden (WEG)	5	4	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament Knysna School Trials #2 2019				Tournament Eden Trials 3 2019
		date 2019-02-16	rnd 2	type Standard	result 0.5	date 2019-05-11	rnd 1	type Standard	result 0.5
		Opponent Kloppers, F (Franco)				Opponent Herholdt, M (Markus)
2	4	Tournament 2023 Knysna School Trials #1				Tournament 2023 Knysna School Trials #1
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Korsten, D (Dominique)				Opponent Bondt, C (Cu Reeza)
3	4	Tournament Knysna School Trials 2022				Tournament Knysna School Trials 2022
		date 2022-02-26	rnd 1	type Standard	result 1	date 2022-02-26	rnd 4	type Standard	result 1
		Opponent Lubedu, L (Ligugu)				Opponent Heuer, H (Hayden)

#	Games	Start				End
1	5	Tournament Knysna School Trials #2 2019				Tournament Eden Trials 3 2019
		date 2019-02-16	rnd 2	type Standard	result 0.5	date 2019-05-11	rnd 1	type Standard	result 0.5
		Opponent Kloppers, F (Franco)				Opponent Herholdt, M (Markus)
2	4	Tournament 2023 Knysna School Trials #1				Tournament 2023 Knysna School Trials #1
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Korsten, D (Dominique)				Opponent Bondt, C (Cu Reeza)
3	4	Tournament Knysna School Trials 2022				Tournament Knysna School Trials 2022
		date 2022-02-26	rnd 1	type Standard	result 1	date 2022-02-26	rnd 4	type Standard	result 1
		Opponent Lubedu, L (Ligugu)				Opponent Heuer, H (Hayden)

#	Games	Start				End
1	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 2	type Rapid	result 0.5	date 2024-10-26	rnd 3	type Rapid	result 1
		Opponent Coleman, G (Gabriella)				Opponent Fritz, U (Ulysse)
2	2	Tournament Knysna Oyster Festival 2023				Tournament Knysna Oyster Festival 2023
		date 2023-07-01	rnd 1	type Rapid	result 1	date 2023-07-01	rnd 2	type Rapid	result 1
		Opponent Rall, N (Nora)				Opponent Daniels, C (Charlton - Lee)
3	2	Tournament Knysna Inter School July 2022				Tournament Knysna Inter School July 2022
		date 2022-07-06	rnd 1	type Rapid	result 1	date 2022-07-06	rnd 2	type Rapid	result 1
		Opponent Herman, A (Aqeem)				Opponent Herman, A (Aqeem)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2023 Knysna School Trials #1				Tournament 2023 Knysna School Trials #1
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Korsten, D (Dominique)				Opponent Bondt, C (Cu Reeza)
2	4	Tournament Knysna School Trials 2022				Tournament Knysna School Trials 2022
		date 2022-02-26	rnd 1	type Standard	result 1	date 2022-02-26	rnd 4	type Standard	result 1
		Opponent Lubedu, L (Ligugu)				Opponent Heuer, H (Hayden)
3	3	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-04-09	rnd 2	type Standard	result 1
		Opponent Cupido, N (Navin-Leigh)				Opponent De Waal, B (Ben)

#	Games	Start				End
1	4	Tournament 2023 Knysna School Trials #1				Tournament 2023 Knysna School Trials #1
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 4	type Standard	result 1
		Opponent Korsten, D (Dominique)				Opponent Bondt, C (Cu Reeza)
2	4	Tournament Knysna School Trials 2022				Tournament Knysna School Trials 2022
		date 2022-02-26	rnd 1	type Standard	result 1	date 2022-02-26	rnd 4	type Standard	result 1
		Opponent Lubedu, L (Ligugu)				Opponent Heuer, H (Hayden)
3	3	Tournament Eden Proewe 1 2022				Tournament Eden Proewe 2 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-04-09	rnd 2	type Standard	result 1
		Opponent Cupido, N (Navin-Leigh)				Opponent De Waal, B (Ben)

#	Games	Start				End
1	2	Tournament Knysna Oyster Festival 2023				Tournament Knysna Oyster Festival 2023
		date 2023-07-01	rnd 1	type Rapid	result 1	date 2023-07-01	rnd 2	type Rapid	result 1
		Opponent Rall, N (Nora)				Opponent Daniels, C (Charlton - Lee)
2	2	Tournament Knysna Inter School July 2022				Tournament Knysna Inter School July 2022
		date 2022-07-06	rnd 1	type Rapid	result 1	date 2022-07-06	rnd 2	type Rapid	result 1
		Opponent Herman, A (Aqeem)				Opponent Herman, A (Aqeem)
3	1	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2024-10-26	rnd 5	type Rapid	result 1
		Opponent Kotze, A (Ayden)				Opponent Kotze, A (Ayden)

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	Jacobs ,E (Eugeniel)	5	0	-425	3	0	-425	2	0	-425	0	0	0
1	Jacobs ,E (Eugeniel)	5	1460.1	1035.1	3	1353.3	1035.1	2	1283.6	1035.1	0	0	0
2	Roberts ,I (Iwan)	2	1	0	2	1	0	0	0	0	0	0	0
2	Roberts ,I (Iwan)	2	1272.7	1272.7	2	1264.6	1272.7	0	0	0	0	0	0
3	Botha ,B (Bertus)	2	1	0	2	1	0	0	0	0	0	0	0
3	Botha ,B (Bertus)	2	1069.9	1069.9	2	1044.8	1069.9	0	0	0	0	0	0
4	Le Roux ,E (Ebert)	2	1	0	2	1	0	0	0	0	0	0	0
4	Le Roux ,E (Ebert)	2	1559.4	1559.4	2	1570.4	1559.4	0	0	0	0	0	0
5	Moller ,R (Ruan)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Moller ,R (Ruan)	2	1029.2	604.2	2	968.7	604.2	0	0	0	0	0	0
6	Caba ,L (Lunathi)	2	0	-425	0	0	0	2	0	-425	0	0	0
6	Caba ,L (Lunathi)	2	1249.4	824.4	0	0	0	2	1200	824.4	0	0	0
7	Herman ,A (Aqeem)	2	2	425	0	0	0	2	2	425	0	0	0
7	Herman ,A (Aqeem)	2	1221.7	1646.7	0	0	0	2	1200	1646.7	0	0	0
8	Nokano` ,M (Masixole)	1	1	425	1	1	425	0	0	0	0	0	0
8	Nokano` ,M (Masixole)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Korsten ,D (Dominique)	1	1	425	1	1	425	0	0	0	0	0	0
9	Korsten ,D (Dominique)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Griebenauw ,E (Emmerich)	1	1	425	1	1	425	0	0	0	0	0	0
10	Griebenauw ,E (Emmerich)	1	1253.2	1678.2	1	1267.8	1678.2	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

Zhu, D (David)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms