Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, R (Ruan)

Chess SA id

1090138837

FIDE id

Date of birth

2009-04-30 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1197.5	1194.5	1221.4	1200
Raw rating	1179.4	1164.6	1221.4	1200
Weighted rating	1197.5	1194.5	1203.4	1200
Weighted performance	0	0	0	0
Floor	700.9	700	721.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.7	174.4	160.8	165.8
Highest rating	1200.9 2024-02-01	1200 2018-10-01	1221.4 2025-09-01	1200 2018-10-01
Highest raw rating	1200.9 2024-02-01	1200 2024-02-01	1221.4 2025-09-01	1200 2024-02-01
Highest weighted rating	1200.9 2025-02-01	1200 2018-10-01	1201.7 2025-09-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2024-02-01	1204.5 2022-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.6	-2.6	0	0
New rating	1196	1191.9	1221.4	1200
Analysis
Rating	1197.5	1194.5	1221.4	1200
Raw rating	1179.4	1164.6	1221.4	1200
Weighted rating	1197.5	1194.5	1203.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700.9	700	721.4	700
Max/Min rating change allowed	170.7	174.4	160.8	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	1179.4	1164.6	1221.4	1200
New weighted rating	1196	1191.9	1204.9	1200
New weighted performance	0	0	0	0
Temp new rating	1196	1191.9	1221.4	1200
Temp new rating +/-	-1.6	-2.6	0	0
Final new rating +/-	-1.6	-2.6	0	0
New rating	1196	1191.9	1221.4	1200
New K-factor	36	36	36	36
New floor	700.9	700	721.4	700

Item	Main	Standard	Rapid
	0	0	0
	9	4	5
	0	0	0
	0	0	0
	6	0	6
	0	0	0
History	15	4	11

Games since
	Main 9	Standard 4		Rapid 5		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	4	44.44	-47.2	1213.6	1166.4
Standard	4	1	25	-212.5	1236.5	1024
Rapid	5	3	60	85	1195.3	1280.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	7	46.67	-28.3	1210	1181.7
Standard	4	1	25	-212.5	1236.5	1024
Rapid	11	6	54.55	38.6	1200.4	1239
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1179.4	1164.6	1221.4	1200
2025-09-01	1179.4	1164.6	1221.4	1200
2025-08-01	1200.9	1200	1200	1200
2025-07-01	1200.9	1200	1200	1200
2025-06-01	1200.9	1200	1200	1200
2025-05-01	1200.9	1200	1200	1200
2025-04-01	1200.9	1200	1200	1200
2025-03-01	1200.9	1200	1200	1200
2025-02-01	1200.9	1200	1200	1200
2025-01-01	1200.9	1200	1200	1200
2024-12-01	1200.9	1200	1200	1200
2024-11-01	1200.9	1200	1200	1200
2024-10-01	1200.9	1200	1200	1200
2024-09-01	1200.9	1200	1200	1200
2024-08-01	1200.9	1200	1200	1200
2024-07-01	1200.9	1200	1200	1200
2024-06-01	1200.9	1200	1200	1200
2024-08-01	1200.9	1200	1200	1200
2024-04-01	1200.9	1200	1200	1200
2024-03-01	1200.9	1200	1200	1200
2024-02-01	1200.9	1200	1200	1200
2024-01-01	1200.9	1200	1200	1200
2023-12-01	1200.9	1200	1200	1200
2023-11-01	1200.9	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	Kraaifontein Schools Rapid Chess Tournament 2025 (Intermediate Boys)	2025-08-09	2025-08-09	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U17)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kraaifontein Schools Rapid Chess Tournament 2025 (Intermediate Boys)	2025-08-09	2025-08-09	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
2	CT Metro District East Top Schools Chess 2025 (U17)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
3	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 4	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 1
		Opponent Diedericks, R (Riquelme)				Opponent Matiure, L (Leeroy)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Cetywayo, T (Thimna)				Opponent Mankahla, K (Khanyo)
3	1	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Mabala, L (Liyema)				Opponent Mabala, L (Liyema)

#	Games	Start				End
1	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Booysen, N (Noah)				Opponent Booysen, N (Noah)

#	Games	Start				End
1	2	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 4	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 1
		Opponent Diedericks, R (Riquelme)				Opponent Matiure, L (Leeroy)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Cetywayo, T (Thimna)				Opponent Mankahla, K (Khanyo)
3	1	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Mabala, L (Liyema)				Opponent Mabala, L (Liyema)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 4	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 1
		Opponent Diedericks, R (Riquelme)				Opponent Matiure, L (Leeroy)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Cetywayo, T (Thimna)				Opponent Mankahla, K (Khanyo)
3	1	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Mabala, L (Liyema)				Opponent Mabala, L (Liyema)

#	Games	Start				End
1	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Booysen, N (Noah)				Opponent Booysen, N (Noah)

#	Games	Start				End
1	2	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 4	type Rapid	result 1	date 2025-08-09	rnd 5	type Rapid	result 1
		Opponent Diedericks, R (Riquelme)				Opponent Matiure, L (Leeroy)
2	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Cetywayo, T (Thimna)				Opponent Mankahla, K (Khanyo)
3	1	Tournament Kraaifontein Schools Rapid Chess Tournament 2025				Tournament Kraaifontein Schools Rapid Chess Tournament 2025
		date 2025-08-09	rnd 2	type Rapid	result 1	date 2025-08-09	rnd 2	type Rapid	result 1
		Opponent Mabala, L (Liyema)				Opponent Mabala, L (Liyema)

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	Booysen ,N (Noah)	1	1	425	1	1	425	0	0	0	0	0	0
1	Booysen ,N (Noah)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Mdingi ,A (Ayabonga)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Mdingi ,A (Ayabonga)	1	1199.6	774.6	1	1199.5	774.6	0	0	0	0	0	0
3	Pupu ,I (Ive)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Pupu ,I (Ive)	1	1193.1	768.1	1	1198.9	768.1	0	0	0	0	0	0
4	Kojoana ,L (Lesedi)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kojoana ,L (Lesedi)	1	1353.4	928.4	1	1287.9	928.4	0	0	0	0	0	0
5	De Waal ,E (Erik)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	De Waal ,E (Erik)	1	1200	775	0	0	0	1	1200	775	0	0	0
6	Mabala ,L (Liyema)	1	1	425	0	0	0	1	1	425	0	0	0
6	Mabala ,L (Liyema)	1	1185.8	1610.8	0	0	0	1	1200	1610.8	0	0	0
7	Hendricks ,T (Tanusha)	1	1	425	0	0	0	1	1	425	0	0	0
7	Hendricks ,T (Tanusha)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Mapoli ,U (Unabantu)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Mapoli ,U (Unabantu)	1	1234.2	809.2	0	0	0	1	1317.8	809.2	0	0	0
9	Beni ,I (Inathi)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Beni ,I (Inathi)	1	1156.6	731.6	0	0	0	1	1200.4	731.6	0	0	0
10	Cetywayo ,T (Thimna)	1	1	425	0	0	0	1	1	425	0	0	0
10	Cetywayo ,T (Thimna)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Pienaar, 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