Chess South Africa Ratings Database

PLAYER PAGE

Personal

Yu, CRR (Changrui)

Chess SA id

104043420

FIDE id

Date of birth

2004-06-25 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-03-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1677.9	1686.3	1588.8	1588.8
Raw rating	1677.9	1686.3	1588.8	1588.8
Weighted rating	1677.9	1686.3	1588.8	1588.8
Weighted performance	455.6	456.1	0	0
Floor	1177.9	1186.3	1088.8	1088.8
K-factor	28	28	32	32
Min/Max rating change allowed	83.9	82.9	95.3	95.3
Highest rating	1677.9 2024-03-01	1686.3 2024-03-01	1588.8 2019-03-01	1588.8 2019-03-01
Highest raw rating	1677.9 2024-03-01	1686.3 2024-03-01	1588.8 2024-03-01	1588.8 2024-03-01
Highest weighted rating	1677.9 2025-02-01	1686.3 2024-03-01	1588.8 2019-03-01	1588.8 2019-03-01
Highest weighted performance	1659.6 2020-03-01	1661.4 2020-03-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1677.9	1686.3	1588.8	1588.8
Analysis
Rating	1677.9	1686.3	1588.8	1588.8
Raw rating	1677.9	1686.3	1588.8	1588.8
Weighted rating	1677.9	1686.3	1588.8
Weighted performance	455.6	456.1	0
K-factor	28	28	32	32
Floor	1177.9	1186.3	1088.8	1088.8
Max/Min rating change allowed	83.9	82.9	95.3	95.3
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	1677.9	1686.3	1588.8	1588.8
New weighted rating	1677.9	1686.3	1588.8	1588.8
New weighted performance	445.7	446.2	0	0
Temp new rating	1677.9	1686.3	1588.8	1588.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1677.9	1686.3	1588.8	1588.8
New K-factor	28	28	32	32
New floor	1177.9	1186.3	1088.8	1088.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	475	410	33	32

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	67	53.5	79.85	253.7	1375.5	1629.2
Standard	67	53.5	79.85	253.7	1375.5	1629.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1677.9	1686.3	1588.8	1588.8
2025-09-30	1677.9	1686.3	1588.8	1588.8
2025-09-01	1677.9	1686.3	1588.8	1588.8
2025-08-01	1677.9	1686.3	1588.8	1588.8
2025-07-01	1677.9	1686.3	1588.8	1588.8
2025-06-01	1677.9	1686.3	1588.8	1588.8
2025-05-01	1677.9	1686.3	1588.8	1588.8
2025-04-01	1677.9	1686.3	1588.8	1588.8
2025-03-01	1677.9	1686.3	1588.8	1588.8
2025-02-01	1677.9	1686.3	1588.8	1588.8
2025-01-01	1677.9	1686.3	1588.8	1588.8
2024-12-01	1677.9	1686.3	1588.8	1588.8
2024-11-01	1677.9	1686.3	1588.8	1588.8
2024-10-01	1677.9	1686.3	1588.8	1588.8
2024-09-01	1677.9	1686.3	1588.8	1588.8
2024-08-01	1677.9	1686.3	1588.8	1588.8
2024-07-01	1677.9	1686.3	1588.8	1588.8
2024-09-01	1677.9	1686.3	1588.8	1588.8
2024-05-01	1677.9	1686.3	1588.8	1588.8
2024-04-01	1677.9	1686.3	1588.8	1588.8
2024-03-01	1677.9	1686.3	1588.8	1588.8
2024-02-01	1677.9	1686.3	1588.8	1588.8
2024-01-01	1677.9	1686.3	1588.8	1588.8
2023-12-01	1677.9	1686.3	1588.8	1588.8

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	2020 Metro Trials (U18 Girls)	2020-03-13	2020-03-14	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
2	Metro North Individual Trials 2020 (U17)	2020-02-07	2020-02-08	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
3	2019 South African Junior Team Championships (U16A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
4	2019 SA Schools Winter Games (U15 Boys)	2019-07-01	2019-07-04	Standard	Ethekwini (KED)	7	7	5.5	Yes	Analysis
5	Western Cape Schools Individuals 2019 (U15 Boys)	2019-05-04	2019-05-05	Standard	Eden (WEG)	6	6	5	Yes	Analysis
6	Metro School Chess Closed Individual Trials 2019 (U15 Boys)	2019-03-01	2019-03-02	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
7	District North Schools Chess Trials 2019 (U15)	2019-01-25	2019-01-26	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
8	South African Junior Team Championships 2018 (U20A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	5	Yes	Analysis
9	Stellenberg Youth Chess Champs 2018 (A)	2018-06-22	2018-06-23	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
10	2018 WP Schools Closed Trials (U15 Boys)	2018-03-09	2018-03-10	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
11	District North Schools Chess Open Trials 2018 (U15)	2018-02-09	2018-02-10	Standard	Cape Town (WCT)	6	6	6	Yes	Analysis
12	2018 Cape of Good Hope Open Chess Championships (Prestige)	2018-01-26	2018-01-28	Standard	Cape Town (WCT)	6	0	0	No	Analysis

#	Games	Start				End
1	11	Tournament Metro School Chess Closed Individual Trials 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-01	rnd 1	type Standard	result 1	date 2019-05-05	rnd 5	type Standard	result 1
		Opponent Beni, S (Siyanda)				Opponent Eaton, DWL (Dante)
2	10	Tournament District North Schools Chess Open Trials 2018				Tournament 2018 WP Schools Closed Trials
		date 2018-02-09	rnd 1	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Davids, L (Luciano)				Opponent Eaton, DWL (Dante)
3	6	Tournament Stellenberg Youth Chess Champs 2018				Tournament South African Junior Team Championships 2018
		date 2018-06-23	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Van Schaik, M (Migael)				Opponent Cilliers, M (Michaela)

#	Games	Start				End
1	11	Tournament Metro School Chess Closed Individual Trials 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-01	rnd 1	type Standard	result 1	date 2019-05-05	rnd 5	type Standard	result 1
		Opponent Beni, S (Siyanda)				Opponent Eaton, DWL (Dante)
2	10	Tournament District North Schools Chess Open Trials 2018				Tournament 2018 WP Schools Closed Trials
		date 2018-02-09	rnd 1	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Davids, L (Luciano)				Opponent Eaton, DWL (Dante)
3	6	Tournament Stellenberg Youth Chess Champs 2018				Tournament South African Junior Team Championships 2018
		date 2018-06-23	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Van Schaik, M (Migael)				Opponent Cilliers, M (Michaela)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament District North Schools Chess Open Trials 2018				Tournament 2018 WP Schools Closed Trials
		date 2018-02-09	rnd 1	type Standard	result 1	date 2018-03-09	rnd 1	type Standard	result 1
		Opponent Davids, L (Luciano)				Opponent Kedama, S (Sandiso)
2	6	Tournament Metro School Chess Closed Individual Trials 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-02	rnd 6	type Standard	result 1	date 2019-05-05	rnd 5	type Standard	result 1
		Opponent Eaton, DWL (Dante)				Opponent Eaton, DWL (Dante)
3	6	Tournament Stellenberg Youth Chess Champs 2018				Tournament South African Junior Team Championships 2018
		date 2018-06-23	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Van Schaik, M (Migael)				Opponent Cilliers, M (Michaela)

#	Games	Start				End
1	7	Tournament District North Schools Chess Open Trials 2018				Tournament 2018 WP Schools Closed Trials
		date 2018-02-09	rnd 1	type Standard	result 1	date 2018-03-09	rnd 1	type Standard	result 1
		Opponent Davids, L (Luciano)				Opponent Kedama, S (Sandiso)
2	6	Tournament Metro School Chess Closed Individual Trials 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-02	rnd 6	type Standard	result 1	date 2019-05-05	rnd 5	type Standard	result 1
		Opponent Eaton, DWL (Dante)				Opponent Eaton, DWL (Dante)
3	6	Tournament Stellenberg Youth Chess Champs 2018				Tournament South African Junior Team Championships 2018
		date 2018-06-23	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Van Schaik, M (Migael)				Opponent Cilliers, M (Michaela)

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	Eaton ,DWL (Dante)	5	4	255	5	4	255	0	0	0	0	0	0
1	Eaton ,DWL (Dante)	5	1584.2	1839.2	5	1576.9	1839.2	0	0	0	0	0	0
2	De Jager ,AJ (Andreas Johannes)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
2	De Jager ,AJ (Andreas Johannes)	4	1682.2	1363.4	4	1688.5	1363.4	0	0	0	0	0	0
3	Venter ,L (Lian)	2	2	425	2	2	425	0	0	0	0	0	0
3	Venter ,L (Lian)	2	1407.6	1832.6	2	1406.2	1832.6	0	0	0	0	0	0
4	De Wit ,PJ (Petrie Jacobus)	2	2	425	2	2	425	0	0	0	0	0	0
4	De Wit ,PJ (Petrie Jacobus)	2	1277.2	1702.2	2	1281.2	1702.2	0	0	0	0	0	0
5	Williams ,K (Kecia)	2	2	425	2	2	425	0	0	0	0	0	0
5	Williams ,K (Kecia)	2	995.8	1420.8	2	997	1420.8	0	0	0	0	0	0
6	Kleinhans ,T (Theo)	2	2	425	2	2	425	0	0	0	0	0	0
6	Kleinhans ,T (Theo)	2	1451.4	1876.4	2	1435.3	1876.4	0	0	0	0	0	0
7	Olkers ,LP (Lleyton)	2	1	0	2	1	0	0	0	0	0	0	0
7	Olkers ,LP (Lleyton)	2	1410.2	1410.2	2	1413.4	1410.2	0	0	0	0	0	0
8	Kedama ,S (Sandiso)	2	2	425	2	2	425	0	0	0	0	0	0
8	Kedama ,S (Sandiso)	2	1261.2	1686.2	2	1286.7	1686.2	0	0	0	0	0	0
9	Prinsloo ,MP (Marthinus Phillipus)	1	1	425	1	1	425	0	0	0	0	0	0
9	Prinsloo ,MP (Marthinus Phillipus)	1	1627.2	2052.2	1	1654.9	2052.2	0	0	0	0	0	0
10	Smit ,D (Devon)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Smit ,D (Devon)	1	1767.4	1342.4	1	1758.6	1342.4	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

Yu, CRR (Changrui)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms