Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kooi, R (Ruan)

Chess SA id

1110144507

FIDE id

Date of birth

2011-04-11 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1194	1194.4	1200	1200
Raw rating	1194	1194.4	1200	1200
Weighted rating	1182.4	1179.7	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	167.2	167.1	165.8	165.8
Highest rating	1270.5 2024-08-01	1270.2 2024-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1270.5 2024-08-01	1270.2 2024-08-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1194	1194.4	1200	1200
Analysis
Rating	1194	1194.4	1200	1200
Raw rating	1194	1194.4	1200	1200
Weighted rating	1182.4	1179.7	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	167.2	167.1	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	1194	1194.4	1200	1200
New weighted rating	1184.8	1182.6	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1194	1194.4	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1194	1194.4	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	4	4
	0	0
	5	5
	0	0
History	9	9

Games since
	Main 4	Standard 4		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	9	4	44.44	-47.2	1197.7	1150.5
Standard	9	4	44.44	-47.2	1197.7	1150.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1194	1194.4	1200	1200
2025-09-30	1194	1194.4	1200	1200
2025-09-01	1194	1194.4	1200	1200
2025-08-01	1194	1194.4	1200	1200
2025-07-01	1194	1194.4	1200	1200
2025-06-01	1194	1194.4	1200	1200
2025-05-01	1194	1194.4	1200	1200
2025-04-01	1194	1194.4	1200	1200
2025-03-01	1194	1194.4	1200	1200
2025-02-01	1194	1194.4	1200	1200
2025-01-01	1194	1194.4	1200	1200
2024-12-01	1194	1194.4	1200	1200
2024-11-01	1194	1194.4	1200	1200
2024-10-01	1194	1194.4	1200	1200
2024-09-01	1194	1194.4	1200	1200
2024-08-01	1117	1096.4	1200	1200
2024-07-01	1117	1096.4	1200	1200
2024-09-01	1117	1096.4	1200	1200
2024-05-01	1117	1096.4	1200	1200
2024-04-01	1117	1096.4	1200	1200
2024-03-01	1117	1096.4	1200	1200
2024-02-01	1117	1096.4	1200	1200
2024-01-01	1117	1096.4	1200	1200
2023-12-01	1117	1096.4	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	D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13B)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	4	4	Yes	Analysis
2	D4 Play Offs 2022 (U13)	2022-07-30	2022-07-30	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Mkhonza, L (Lifelihle)				Opponent Snyman, L (Luan)

#	Games	Start				End
1	4	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Mkhonza, L (Lifelihle)				Opponent Snyman, L (Luan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Mkhonza, L (Lifelihle)				Opponent Snyman, L (Luan)

#	Games	Start				End
1	4	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Mkhonza, L (Lifelihle)				Opponent Snyman, L (Luan)

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	Mc Nally ,J (Juan)	1	1	425	1	1	425	0	0	0	0	0	0
1	Mc Nally ,J (Juan)	1	1159.2	1584.2	1	1168	1584.2	0	0	0	0	0	0
2	Rambritch ,A (Abhay)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Rambritch ,A (Abhay)	1	1312.4	887.4	1	1301.1	887.4	0	0	0	0	0	0
3	Mkhonza ,L (Lifelihle)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mkhonza ,L (Lifelihle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	De Villiers ,L (Luc)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	De Villiers ,L (Luc)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mahomed ,H (Hanna)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mahomed ,H (Hanna)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Olivier ,BM (Barnard Markus)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Olivier ,BM (Barnard Markus)	1	1206.4	781.4	1	1165.6	781.4	0	0	0	0	0	0
7	Richards ,K (Kobus)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Richards ,K (Kobus)	1	1155.5	730.5	1	1143.6	730.5	0	0	0	0	0	0
8	Botha ,L (Louis)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Botha ,L (Louis)	1	1156.9	731.9	1	1150	731.9	0	0	0	0	0	0
9	Snyman ,L (Luan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Snyman ,L (Luan)	1	1189.2	1614.2	1	1200	1614.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Kooi, R (Ruan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms