Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, R (Ruan)

Chess SA id

1130314897

FIDE id

Date of birth

2013-07-03 (U14)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1242.6	1248.3	1200	1200
Raw rating	1242.6	1248.3	1200	1200
Weighted rating	1228.2	1232	1200	1200
Weighted performance	0	0	0	0
Floor	742.6	748.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	156	154.8	165.8	165.8
Highest rating	1242.6 2025-04-01	1248.3 2025-04-01	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1242.6 2025-04-01	1248.3 2025-04-01	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1216.4 2025-08-01	1218.5 2025-08-01	1200 2025-03-01	1200 2025-03-01
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	0	0	0
New rating	1242.6	1248.3	1200	1200
Analysis
Rating	1242.6	1248.3	1200	1200
Raw rating	1242.6	1248.3	1200	1200
Weighted rating	1228.2	1232	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	742.6	748.3	700	700
Max/Min rating change allowed	156	154.8	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	1242.6	1248.3	1200	1200
New weighted rating	1230.2	1234.2	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1242.6	1248.3	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1242.6	1248.3	1200	1200
New K-factor	36	36	36	36
New floor	742.6	748.3	700	700

Item	Main	Standard
	0	0
	10	10
	0	0
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	10	6	60	85	1239.1	1324.1
Standard	10	6	60	85	1239.1	1324.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	6	60	85	1239.1	1324.1
Standard	10	6	60	85	1239.1	1324.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1242.6	1248.3	1200	1200
2025-11-30	1242.6	1248.3	1200	1200
2025-11-01	1242.6	1248.3	1200	1200
2025-09-30	1242.6	1248.3	1200	1200
2025-09-01	1242.6	1248.3	1200	1200
2025-08-01	1242.6	1248.3	1200	1200
2025-07-01	1242.6	1248.3	1200	1200
2025-06-01	1242.6	1248.3	1200	1200
2025-05-01	1242.6	1248.3	1200	1200
2025-04-01	1242.6	1248.3	1200	1200
2025-03-01	1211.7	1212.9	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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	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

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	2nd Knight Riders Junior Open 2025 (C)	2025-03-23	2025-03-23	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
2	First Knights Juniors Chess Tournament 2025 (D)	2025-02-09	2025-02-09	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament First Knights Juniors Chess Tournament 2025				Tournament First Knights Juniors Chess Tournament 2025
		date 2025-02-09	rnd 2	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Goodwin, J (Jacob)				Opponent Prentice, B (Ben)
2	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 4	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Maduna, A (Asanda)				Opponent Parboosing, A (Aryana)
3	1	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 2	type Standard	result 1
		Opponent Rizvi, F (Fatima)				Opponent Rizvi, F (Fatima)

#	Games	Start				End
1	3	Tournament First Knights Juniors Chess Tournament 2025				Tournament First Knights Juniors Chess Tournament 2025
		date 2025-02-09	rnd 2	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Goodwin, J (Jacob)				Opponent Prentice, B (Ben)
2	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 4	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Maduna, A (Asanda)				Opponent Parboosing, A (Aryana)
3	1	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 2	type Standard	result 1
		Opponent Rizvi, F (Fatima)				Opponent Rizvi, F (Fatima)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament First Knights Juniors Chess Tournament 2025				Tournament First Knights Juniors Chess Tournament 2025
		date 2025-02-09	rnd 2	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Goodwin, J (Jacob)				Opponent Prentice, B (Ben)
2	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 4	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Maduna, A (Asanda)				Opponent Parboosing, A (Aryana)
3	1	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 2	type Standard	result 1
		Opponent Rizvi, F (Fatima)				Opponent Rizvi, F (Fatima)

#	Games	Start				End
1	3	Tournament First Knights Juniors Chess Tournament 2025				Tournament First Knights Juniors Chess Tournament 2025
		date 2025-02-09	rnd 2	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Goodwin, J (Jacob)				Opponent Prentice, B (Ben)
2	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 4	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Maduna, A (Asanda)				Opponent Parboosing, A (Aryana)
3	1	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 2	type Standard	result 1
		Opponent Rizvi, F (Fatima)				Opponent Rizvi, F (Fatima)

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	Vemula ,L (Lekhan Sai)	1	1	425	1	1	425	0	0	0	0	0	0
1	Vemula ,L (Lekhan Sai)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Moeketsi ,M (Mafoko)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Moeketsi ,M (Mafoko)	1	1353.4	928.4	1	1355.2	928.4	0	0	0	0	0	0
3	Parboosing ,A (Aryana)	1	1	425	1	1	425	0	0	0	0	0	0
3	Parboosing ,A (Aryana)	1	1272.3	1697.3	1	1283.1	1697.3	0	0	0	0	0	0
4	Prentice ,B (Ben)	1	1	425	1	1	425	0	0	0	0	0	0
4	Prentice ,B (Ben)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Rizvi ,F (Fatima)	1	1	425	1	1	425	0	0	0	0	0	0
5	Rizvi ,F (Fatima)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Kotzenmacher ,L (Leo)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kotzenmacher ,L (Leo)	1	1116.2	691.2	1	1105.6	691.2	0	0	0	0	0	0
7	Maduna ,A (Asanda)	1	1	425	1	1	425	0	0	0	0	0	0
7	Maduna ,A (Asanda)	1	1192.6	1617.6	1	1191.2	1617.6	0	0	0	0	0	0
8	Goodwin ,J (Jacob)	1	1	425	1	1	425	0	0	0	0	0	0
8	Goodwin ,J (Jacob)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Block ,S (Shlomo)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Block ,S (Shlomo)	1	1464.6	1039.6	1	1414.6	1039.6	0	0	0	0	0	0
10	Bester ,J (Johannes)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bester ,J (Johannes)	1	1191.7	766.7	1	1177.6	766.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Botha, 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