Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, R (Ryan)

Chess SA id

1110315357

FIDE id

Date of birth

2011-02-25 (U16)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

944.6

Item	Main	Standard	Rapid	Blitz
Rating	1192.6	1190.6	1200	1200
Raw rating	1156.9	1145.4	1200	1200
Weighted rating	1192.6	1190.6	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	176.3	179.2	165.8	165.8
Highest rating	1199.9 2025-02-16	1199.9 2025-02-16	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1199.9 2025-02-16	1199.9 2025-02-16	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1199.9 2025-02-16	1199.9 2025-02-16	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	-3.1	-4	0	0
New rating	1189.5	1186.7	1200	1200
Analysis
Rating	1192.6	1190.6	1200	1200
Raw rating	1156.9	1145.4	1200	1200
Weighted rating	1192.6	1190.6	1200
Weighted performance	0	0	0
K-factor	40	40	36	36
Floor	699.9	699.9	700	700
Max/Min rating change allowed	176.3	179.2	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	1156.9	1145.4	1200	1200
New weighted rating	1189.5	1186.7	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1189.5	1186.7	1200	1200
Temp new rating +/-	-3.1	-4	0	0
Final new rating +/-	-3.1	-4	0	0
New rating	1189.5	1186.7	1200	1200
New K-factor	40	40	36	36
New floor	699.9	699.9	700	700

Item	Main	Standard
	0	0
	14	14
	0	0
	0	0
	0	0
	0	0
History	14	14

Games since
	Main 14	Standard 14		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Ekurhuleni (GE)
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	14	2.5	17.86	-273.2	1218	944.8
Standard	14	2.5	17.86	-273.2	1218	944.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	14	2.5	17.86	-273.2	1218	944.8
Standard	14	2.5	17.86	-273.2	1218	944.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1156.9	1145.4	1200	1200
2025-09-01	1156.9	1145.4	1200	1200
2025-08-01	1199.2	1199.1	1200	1200
2025-07-01	1198.9	1198.7	1200	1200
2025-06-01	1194.3	1193.2	1200	1200
2025-05-01	1199.8	1199.7	1200	1200
2025-04-01	1199.6	1199.5	1200	1200
2025-03-01	1197.8	1197.1	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
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2023-11-01	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	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
2	Benoni High School Cluster 2025 (U15)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
3	Benoni High School Cluster 15Feb 2025 (U15 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
2	Benoni High School Cluster 2025 (U15)	2025-05-10	2025-05-10	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
3	Benoni High School Cluster 15Feb 2025 (U15 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 4	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 0.5
		Opponent Prinsloo, J (Justin)				Opponent Perryer, T (Tyla)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Manaka, P (Ponagalo)				Opponent Manaka, P (Ponagalo)

#	Games	Start				End
1	2	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 4	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 0.5
		Opponent Prinsloo, J (Justin)				Opponent Perryer, T (Tyla)
2	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Manaka, P (Ponagalo)				Opponent Manaka, P (Ponagalo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Manaka, P (Ponagalo)				Opponent Manaka, P (Ponagalo)
2	1	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 4	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Prinsloo, J (Justin)				Opponent Prinsloo, J (Justin)

#	Games	Start				End
1	1	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Manaka, P (Ponagalo)				Opponent Manaka, P (Ponagalo)
2	1	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 4	type Standard	result 1	date 2025-02-15	rnd 4	type Standard	result 1
		Opponent Prinsloo, J (Justin)				Opponent Prinsloo, J (Justin)

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	Retief ,D (Delmarie)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Retief ,D (Delmarie)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Perryer ,T (Tyla)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Perryer ,T (Tyla)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
3	Manthey ,K (Kim)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Manthey ,K (Kim)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Rae ,C (Crystal)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Rae ,C (Crystal)	1	1127	702	1	1158.6	702	0	0	0	0	0	0
5	Prinsloo ,J (Justin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Prinsloo ,J (Justin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Lindokuhle ,S (Shiba)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Lindokuhle ,S (Shiba)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Ramnath ,S (Sheiyur)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ramnath ,S (Sheiyur)	1	1202.4	777.4	1	1204	777.4	0	0	0	0	0	0
8	Manaka ,P (Ponagalo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Manaka ,P (Ponagalo)	1	1194.3	1619.3	1	1195.2	1619.3	0	0	0	0	0	0
9	Nolan ,C (Christopher)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Nolan ,C (Christopher)	1	1368.1	943.1	1	1315.9	943.1	0	0	0	0	0	0
10	Teixeira ,A (Angelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Teixeira ,A (Angelo)	1	1360.6	935.6	1	1300.2	935.6	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

Botha, R (Ryan)

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