Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gu, R (Ruchen)

Chess SA id

1190319794

FIDE id

Date of birth

2019-01-22 (U8)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1197.5	1197	1200	1200
Raw rating	1191	1189.3	1200	1200
Weighted rating	1197.5	1197	1200	1200
Weighted performance	0	0	0	0
Floor	699.9	699.9	700	700
K-factor	40	40	36	36
Min/Max rating change allowed	167.9	168.4	165.8	165.8
Highest rating	1199.9 2025-05-08	1199.9 2025-05-08	1200 2025-06-01	1200 2025-06-01
Highest raw rating	1199.9 2025-05-08	1199.9 2025-05-08	1200 2025-06-01	1200 2025-06-01
Highest weighted rating	1199.9 2025-05-08	1199.9 2025-05-08	1200 2025-06-01	1200 2025-06-01
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	-0.6	-0.7	0	0
New rating	1196.9	1196.3	1200	1200
Analysis
Rating	1197.5	1197	1200	1200
Raw rating	1191	1189.3	1200	1200
Weighted rating	1197.5	1197	1200
Weighted performance	0	0	0
K-factor	40	40	36	36
Floor	699.9	699.9	700	700
Max/Min rating change allowed	167.9	168.4	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	1191	1189.3	1200	1200
New weighted rating	1196.9	1196.3	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1196.9	1196.3	1200	1200
Temp new rating +/-	-0.6	-0.7	0	0
Final new rating +/-	-0.6	-0.7	0	0
New rating	1196.9	1196.3	1200	1200
New K-factor	40	40	36	36
New floor	699.9	699.9	700	700

Item	Main	Standard
	0	0
	9	9
	0	0
	0	0
	0	0
	0	0
History	9	9

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Male
Age group	U8
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U8	-1		-1		-1
U8 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U8	-1		-1		-1
U8 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U8	-1		-1		-1
U8 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U8	-1		-1		-1
U8 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	9	2	22.22	-236.1	1226.2	990.1
Standard	9	2	22.22	-236.1	1226.2	990.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	2	22.22	-236.1	1226.2	990.1
Standard	9	2	22.22	-236.1	1226.2	990.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1191	1189.3	1200	1200
2025-09-30	1191	1189.3	1200	1200
2025-09-01	1191	1189.3	1200	1200
2025-08-01	1199.5	1199.4	1200	1200
2025-07-01	1199.2	1199	1200	1200
2025-06-01	1194.9	1193.9	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	Lonehill Chess Academy - 1st Rated Tournament 2025 (U8)	2025-08-02	2025-08-02	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	CPH May 2025 (E)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Lonehill Chess Academy - 1st Rated Tournament 2025 (U8)	2025-08-02	2025-08-02	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	CPH May 2025 (E)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis

#	Games	Start				End
1	3	Tournament Lonehill Chess Academy - 1st Rated Tournament 2025				Tournament Lonehill Chess Academy - 1st Rated Tournament 2025
		date 2025-08-02	rnd 1	type Standard	result 0.5	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Ngcobo, S (Simingo)				Opponent Radzilani, P (Pendo)

#	Games	Start				End
1	3	Tournament Lonehill Chess Academy - 1st Rated Tournament 2025				Tournament Lonehill Chess Academy - 1st Rated Tournament 2025
		date 2025-08-02	rnd 1	type Standard	result 0.5	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Ngcobo, S (Simingo)				Opponent Radzilani, P (Pendo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Lonehill Chess Academy - 1st Rated Tournament 2025				Tournament Lonehill Chess Academy - 1st Rated Tournament 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Radzilani, P (Pendo)				Opponent Radzilani, P (Pendo)

#	Games	Start				End
1	1	Tournament Lonehill Chess Academy - 1st Rated Tournament 2025				Tournament Lonehill Chess Academy - 1st Rated Tournament 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Radzilani, P (Pendo)				Opponent Radzilani, P (Pendo)

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	Hsu ,E (Emily)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Hsu ,E (Emily)	1	1238.1	813.1	1	1244.6	813.1	0	0	0	0	0	0
2	Gwasera ,T (Tawona)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Gwasera ,T (Tawona)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Mfazwe ,P (Phumla)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mfazwe ,P (Phumla)	1	1372.3	947.3	1	1373	947.3	0	0	0	0	0	0
4	Ji ,Y (Yufei)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Ji ,Y (Yufei)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Borra ,N (Nedhya)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Borra ,N (Nedhya)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
6	Ngcobo ,S (Simingo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Ngcobo ,S (Simingo)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Radzilani ,P (Pendo)	1	1	425	1	1	425	0	0	0	0	0	0
7	Radzilani ,P (Pendo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Wang ,X (Xiaozhi)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Wang ,X (Xiaozhi)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Sooganchand ,G (Gia)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sooganchand ,G (Gia)	1	1225.1	800.1	1	1228.2	800.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Gu, R (Ruchen)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms