Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, R (Ryan)

Chess SA id

1100141541

FIDE id

Date of birth

2010-12-21 (U16)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1223.9	1211.5	1080.4	1200
Raw rating	1223.9	1211.5	1080.4	1200
Weighted rating	1207.7	1201.2	1080.4	1200
Weighted performance	1028.2	1017.9	0	0
Floor	723.9	711.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.3	163.1	196.6	165.8
Highest rating	1223.9 2024-08-01	1211.5 2024-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1223.9 2024-08-01	1211.5 2024-08-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1223.9 2018-10-01	1211.5 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1223.9	1211.5	1080.4	1200
Analysis
Rating	1223.9	1211.5	1080.4	1200
Raw rating	1223.9	1211.5	1080.4	1200
Weighted rating	1207.7	1201.2	1080.4
Weighted performance	1028.2	1017.9	0
K-factor	36	36	36	36
Floor	723.9	711.5	700	700
Max/Min rating change allowed	160.3	163.1	196.6	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	1223.9	1211.5	1080.4	1200
New weighted rating	1211	1203	1080.4	1200
New weighted performance	1021	1010.7	0	0
Temp new rating	1223.9	1211.5	1080.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1223.9	1211.5	1080.4	1200
New K-factor	36	36	36	36
New floor	723.9	711.5	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	19	19	0
	8	8	0
	6	0	6
	0	0	0
History	33	27	6

Games since
	Main 19	Standard 19		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	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	33	12	36.36	-115.9	1175.2	1059.3
Standard	27	12	44.44	-47.2	1186.6	1139.4
Rapid	6	0	0	-425	1123.7	698.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1223.9	1211.5	1080.4	1200
2025-09-30	1223.9	1211.5	1080.4	1200
2025-09-01	1223.9	1211.5	1080.4	1200
2025-08-01	1223.9	1211.5	1080.4	1200
2025-07-01	1223.9	1211.5	1080.4	1200
2025-06-01	1223.9	1211.5	1080.4	1200
2025-05-01	1223.9	1211.5	1080.4	1200
2025-04-01	1223.9	1211.5	1080.4	1200
2025-03-01	1223.9	1211.5	1080.4	1200
2025-02-01	1223.9	1211.5	1080.4	1200
2025-01-01	1223.9	1211.5	1080.4	1200
2024-12-01	1223.9	1211.5	1080.4	1200
2024-11-01	1223.9	1211.5	1080.4	1200
2024-10-01	1223.9	1211.5	1080.4	1200
2024-09-01	1223.9	1211.5	1080.4	1200
2024-08-01	1223.9	1211.5	1080.4	1200
2024-07-01	1070.8	1090	1080.4	1200
2024-09-01	1070.8	1090	1080.4	1200
2024-05-01	1051.2	1077.2	1080.4	1200
2024-04-01	1122.9	1180.8	1080.4	1200
2024-03-01	1122.9	1180.8	1080.4	1200
2024-02-01	1122.9	1180.8	1080.4	1200
2024-01-01	1122.9	1180.8	1080.4	1200
2023-12-01	1122.9	1180.8	1080.4	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	Bojanala's Clash Of Schools 2024 (U13)	2024-07-20	2024-07-20	Standard	Bojanala Platina (NBR)	5	4	4	Yes	Analysis
2	Hamakom's Pioneers Of The Board 2024 (Bishops)	2024-07-13	2024-07-13	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
3	Schoemies' Kwaggarus Chess Getaway 2024 (Junior)	2024-05-18	2024-05-18	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
4	Bojanala Olienpark's One For The Ages 2024 (Rooks)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
5	Schoemies' Kings & Queens 2024 (Knights)	2024-03-02	2024-03-02	Standard	Bojanala Platina (NBR)	5	0	0	No	Analysis
6	Olienpark - 2nd One for the Ages 2023 (U14)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	4	2	Yes	Analysis
7	One For The Ages 2023 (U14)	2023-02-18	2023-02-18	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
8	RMS Swiss For Rating of Players 2022 (U13)	2022-05-28	2022-05-28	Rapid	Ekurhuleni (GE)	7	6	0	Yes	Analysis

#	Games	Start				End
1	7	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Truyens, A (Anesta)
2	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 3	type Standard	result 0.5	date 2024-05-18	rnd 5	type Standard	result 0.5
		Opponent Moreki, K (Kealeboga)				Opponent Pretorius, S (Stephan Nicolaas)
3	3	Tournament One For The Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Tlhagwane, O (Oretlametse)				Opponent Badukane, T (Tokelo)

#	Games	Start				End
1	7	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Truyens, A (Anesta)
2	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 3	type Standard	result 0.5	date 2024-05-18	rnd 5	type Standard	result 0.5
		Opponent Moreki, K (Kealeboga)				Opponent Pretorius, S (Stephan Nicolaas)
3	3	Tournament One For The Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Tlhagwane, O (Oretlametse)				Opponent Badukane, T (Tokelo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-13	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Erasmus, A (Annika)				Opponent Truyens, A (Anesta)
2	3	Tournament One For The Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Tlhagwane, O (Oretlametse)				Opponent Badukane, T (Tokelo)
3	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Herbst, K (Karlien)

#	Games	Start				End
1	5	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Bojanala's Clash Of Schools 2024
		date 2024-07-13	rnd 5	type Standard	result 1	date 2024-07-20	rnd 5	type Standard	result 1
		Opponent Erasmus, A (Annika)				Opponent Truyens, A (Anesta)
2	3	Tournament One For The Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-02-18	rnd 5	type Standard	result 1	date 2023-05-13	rnd 3	type Standard	result 1
		Opponent Tlhagwane, O (Oretlametse)				Opponent Badukane, T (Tokelo)
3	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 3	type Standard	result 1	date 2024-07-13	rnd 3	type Standard	result 1
		Opponent Herbst, K (Karlien)				Opponent Herbst, K (Karlien)

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	Tungwane ,T (Thata-Yaone-Etsile)	2	2	425	2	2	425	0	0	0	0	0	0
1	Tungwane ,T (Thata-Yaone-Etsile)	2	1129.6	1554.6	2	1115	1554.6	0	0	0	0	0	0
2	Herbst ,K (Karlien)	2	2	425	2	2	425	0	0	0	0	0	0
2	Herbst ,K (Karlien)	2	1132.3	1557.3	2	1116	1557.3	0	0	0	0	0	0
3	Chiloane ,O (Olaotse)	1	1	425	1	1	425	0	0	0	0	0	0
3	Chiloane ,O (Olaotse)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Tshetlhe ,B (Blessing)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Tshetlhe ,B (Blessing)	1	1387.3	962.3	1	1384.2	962.3	0	0	0	0	0	0
5	Van Den Heever ,A (Aldo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Den Heever ,A (Aldo)	1	1226.9	1651.9	1	1231.6	1651.9	0	0	0	0	0	0
6	Jansen Van Vuuren ,L (Lourein)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Jansen Van Vuuren ,L (Lourein)	1	1262.8	837.8	1	1240.6	837.8	0	0	0	0	0	0
7	Truyens ,A (Anesta)	1	1	425	1	1	425	0	0	0	0	0	0
7	Truyens ,A (Anesta)	1	1140.3	1565.3	1	1130	1565.3	0	0	0	0	0	0
8	Monare ,O (Oratilwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Monare ,O (Oratilwe)	1	1216.4	791.4	1	1202.9	791.4	0	0	0	0	0	0
9	Pretorius ,S (Stephan Nicolaas)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Pretorius ,S (Stephan Nicolaas)	1	1191	1191	1	1132.4	1191	0	0	0	0	0	0
10	Henning ,T (Tiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Henning ,T (Tiaan)	1	1036.5	611.5	1	985.3	611.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Villiers, R (Ryan)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms