Chess South Africa Ratings Database

PLAYER PAGE

Personal

Selkirk, RJ (Rebecca Joy)

Chess SA id

293034027

FIDE id

Date of birth

1993-07-06 (Adult)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

WCM

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1768.1	1776.9	1679.4	1754
Raw rating	1768.1	1776.9	1679.4	1754
Weighted rating	1749.3	1761	1679.4	1753.9
Weighted performance	1357.9	1343.6	972.6	770.6
Floor	1306.7	1324	1223.6	1254
K-factor	24	24	28	28
Min/Max rating change allowed	73.8	72.9	83.8	75.3
Highest rating	1806.7 2019-10-01	1833.1 2018-09-01	1723.6 2018-06-01	1754 2024-03-01
Highest raw rating	1806.7 2019-10-01	1824 2019-10-01	1723.6 2018-02-01	1754 2024-03-01
Highest weighted rating	1806.7 2021-03-01	1824 2020-04-01	1723.6 2018-06-01	1753.8 2025-08-01
Highest weighted performance	1778.8 2018-09-01	1833.1 2018-09-01	1632.1 2020-02-01	1589.9 2020-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1768.1	1776.9	1679.4	1754
Analysis
Rating	1768.1	1776.9	1679.4	1754
Raw rating	1768.1	1776.9	1679.4	1754
Weighted rating	1749.3	1761	1679.4
Weighted performance	1357.9	1343.6	972.6
K-factor	24	24	28	28
Floor	1306.7	1324	1223.6	1254
Max/Min rating change allowed	73.8	72.9	83.8	75.3
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	1768.1	1776.9	1679.4	1754
New weighted rating	1751	1762.4	1679.4	1754
New weighted performance	1347.7	1333.5	963.2	760.8
Temp new rating	1768.1	1776.9	1679.4	1754
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1768.1	1776.9	1679.4	1754
New K-factor	24	24	28	28
New floor	1306.7	1324	1223.6	1254

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	6	6	0	0
	9	9	0	0
	61	33	19	9
	52	45	0	7
	6	6	0	0
History	703	609	40	54

Games since
	Main 19	Standard 19		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	6	4	66.67	141.7	1720	1861.7
Standard	6	4	66.67	141.7	1720	1861.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	282	165.5	58.69	73.8	1653	1726.8
Standard	213	119	55.87	49.9	1687	1736.9
Rapid	34	21.5	63.24	112.5	1558.4	1670.9
Blitz	35	25	71.43	182.1	1537.8	1719.9

Date	Main	Standard	Rapid	Blitz
2025-11-01	1768.1	1776.9	1679.4	1754
2025-09-30	1748.9	1760.1	1679.4	1754
2025-09-01	1748.9	1760.1	1679.4	1754
2025-08-01	1748.9	1760.1	1679.4	1754
2025-07-01	1748.9	1760.1	1679.4	1754
2025-06-01	1748.9	1760.1	1679.4	1754
2025-05-01	1748.9	1760.1	1679.4	1754
2025-04-01	1748.9	1760.1	1679.4	1754
2025-03-01	1748.9	1760.1	1679.4	1754
2025-02-01	1748.9	1760.1	1679.4	1754
2025-01-01	1748.9	1760.1	1679.4	1754
2024-12-01	1748.9	1760.1	1679.4	1754
2024-11-01	1748.9	1760.1	1679.4	1754
2024-10-01	1748.9	1760.1	1679.4	1754
2024-09-01	1739.8	1752.4	1679.4	1754
2024-08-01	1743.4	1759.6	1679.4	1754
2024-07-01	1743.4	1759.6	1679.4	1754
2024-09-01	1743.4	1759.6	1679.4	1754
2024-05-01	1743.4	1759.6	1679.4	1754
2024-04-01	1743.4	1759.6	1679.4	1754
2024-03-01	1743.4	1759.6	1679.4	1754
2024-02-01	1743.4	1759.6	1679.4	1754
2024-01-01	1743.4	1759.6	1679.4	1754
2023-12-01	1743.4	1739.1	1679.4	1747.7

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	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	6	4	Yes	Analysis
2	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	3	1.5	Yes	Analysis
3	Western Cape Women�s Championship 2024 (Elite)	2024-08-08	2024-08-11	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
4	2023 Western Cape Rural Cup (Open)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	3.5	Yes	Analysis
5	2023 Moja Chess Extravaganza (Ladies)	2023-09-30	2023-10-04	Standard	Frances Baard (NCF)	9	9	6.5	Yes	Analysis
6	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	4	3.5	Yes	Analysis
7	CW Top Schools 2023 (Elite)	2023-08-11	2023-08-13	Standard	West Coast (WCU)	6	6	4.5	Yes	Analysis
8	GPCA Rapid 2023 (Advanced)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	6.5	Yes	Analysis
9	Hermanus Rapid 2023 (A)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	2.5	Yes	Analysis
10	Casuarina International 2023 (Rapid)	2023-03-11	2023-03-12	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
11	Casuarina International 2023 (Blitz)	2023-03-11	2023-03-11	Blitz	Cape Town (WCT)	9	9	6	Yes	Analysis
12	Western Cape Inter Regional 2023 (Senior Ladies)	2023-03-18	2023-03-19	Standard	Eden (WEG)	5	4	3	Yes	Analysis
13	Cape of Good Hope Open 2023 (Championship)	2023-01-28	2023-01-29	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
14	2022 Western Province Club League (Premier)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	9	5	Yes	Analysis
15	Western Cape Closed Championship 2022 (Blitz)	2022-09-24	2022-09-25	Blitz	Cape Winelands (WCW)	7	7	4	Yes	Analysis
16	44th Olympiad Chennai 2022	2022-07-29	2022-08-09	Standard	India (IND)	11	8	4	Yes	Analysis
17	South African Open 2022 (Championship)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	4	Yes	Analysis
18	2022 South African Closed Chess Championships (Women)	2022-05-08	2022-05-14	Standard	Chess South Africa (CSA)	7	6	2	Yes	Analysis
19	Western Cape Inter Region Cup 2021 (Ladies)	2022-03-04	2022-03-06	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
20	Cape Winelands Open 2022 (Championship)	2022-02-12	2022-02-13	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
21	Western Cape Closed 2020 (Championship)	2021-03-27	2021-03-28	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
22	2020 Western Province Open (Championship)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
23	Paul Roos Blitz 2020	2020-02-22	2020-02-22	Blitz	Cape Winelands (WCW)	9	9	7	Yes	Analysis
24	Nelson Mandela Rapid 2020 (Open)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
25	2019 South African Closed Chess Championships (Women A)	2019-12-07	2019-12-17	Standard	Cape Town (WCT)	11	11	7	Yes	Analysis
26	Mossel Bay Chess Open 2019 (A)	2019-10-04	2019-10-05	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
27	2019 Western Cape Closed Chess Championships (Elite)	2019-09-21	2019-09-24	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
28	2019 Western Province League (Premier)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	10	6	Yes	Analysis
29	Condorgreen Mitchell`s Plain Chess Open Tournament 2019	2019-06-01	2019-06-02	Rapid	Cape Town (WCT)	9	9	6	Yes	Analysis
30	Steinitz Chess Festival 2019 (A)	2019-04-05	2019-04-07	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
31	Western Cape Women`s Open 2019 (Prestige)	2019-03-08	2019-03-10	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
32	43rd Olympiad Batumi 2018	2018-09-24	2018-10-05	Standard	Georgia (GEO)	11	9	4	Yes	Analysis
33	I Ta�a Litoral de Xadrez - Open Internacional de Xadrez S. Martinho do Porto 15 a 21 Setembro 2018	2018-09-15	2018-09-21	Standard	Portugal (POR)	9	9	5.5	Yes	Analysis
34	2018 Western Province League (Premier)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	8	5	Yes	Analysis
35	South African Open 2018 (A)	2018-07-07	2018-07-14	Standard	Mangaung (FMB)	11	11	4.5	Yes	Analysis
36	2018 Zone 4.3 Individual Chess Championships	2018-04-08	2018-04-14	Standard	Mozambique (MOZ)	9	9	5.5	Yes	Analysis
37	SAGF Blitz 2018	2018-04-30	2018-04-30	Blitz	Buffalo City (EBC)	11	10	8	Yes	Analysis
38	2018 Western Province Open (Elite)	2018-03-02	2018-03-04	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
39	2018 Steinitz Chess Festival (Prestige)	2018-03-21	2018-03-25	Standard	Cape Town (WCT)	7	7	4	Yes	Analysis
40	2018 Cape of Good Hope Open Chess Championships (Elite)	2018-01-26	2018-01-28	Standard	Cape Town (WCT)	6	5	0.5	Yes	Analysis

#	Games	Start				End
1	13	Tournament Hermanus Rapid 2023				Tournament CW Top Schools 2023
		date 2023-04-22	rnd 5	type Rapid	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Joubert, N (Natasha)				Opponent Klaasen, RJ (Robyn)
2	12	Tournament 2023 Moja Chess Extravaganza				Tournament Western Cape Women�s Championship 2024
		date 2023-10-04	rnd 9	type Standard	result 1	date 2024-08-10	rnd 5	type Standard	result 1
		Opponent Mcpherson, N (Naleli)				Opponent Joubert, N (Natasha)
3	10	Tournament 2018 Zone 4.3 Individual Chess Championships				Tournament SAGF Blitz 2018
		date 2018-04-12	rnd 6	type Standard	result 1	date 2018-04-30	rnd 6	type Blitz	result 1
		Opponent Mbatha Constance				Opponent De Franchi, C (Chiara)

#	Games	Start				End
1	12	Tournament 2023 Moja Chess Extravaganza				Tournament Western Cape Women�s Championship 2024
		date 2023-10-04	rnd 9	type Standard	result 1	date 2024-08-10	rnd 5	type Standard	result 1
		Opponent Mcpherson, N (Naleli)				Opponent Joubert, N (Natasha)
2	9	Tournament CW Top Schools 2023				Tournament 2023 Moja Chess Extravaganza
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-10-01	rnd 4	type Standard	result 1
		Opponent Bouah, D (Denise)				Opponent Amrouni, A (Alexia Shakira)
3	7	Tournament Cape Winelands Open 2022				Tournament Western Cape Inter Region Cup 2021
		date 2022-02-13	rnd 5	type Standard	result 1	date 2022-03-06	rnd 5	type Standard	result 0.5
		Opponent Pick, DD (Deon)				Opponent Swart, S (Sune)

#	Games	Start				End
1	9	Tournament Hermanus Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-04-22	rnd 5	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Joubert, N (Natasha)				Opponent Galleid, S (Stephen)
2	5	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-06-01	rnd 4	type Rapid	result 1	date 2019-06-02	rnd 8	type Rapid	result 1
		Opponent Kantunda, M (Munashe)				Opponent Kedama, S (Sandiso)
3	2	Tournament Nelson Mandela Rapid 2020				Tournament Casuarina International 2023
		date 2020-02-01	rnd 6	type Rapid	result 1	date 2023-03-11	rnd 1	type Rapid	result 1
		Opponent Galleid, S (Stephen)				Opponent Swart, C (Colin)

#	Games	Start				End
1	6	Tournament SAGF Blitz 2018				Tournament SAGF Blitz 2018
		date 2018-04-30	rnd 1	type Blitz	result 1	date 2018-04-30	rnd 6	type Blitz	result 1
		Opponent Van Der Walt, MC (Marelize)				Opponent De Franchi, C (Chiara)
2	5	Tournament Paul Roos Blitz 2020				Tournament Western Cape Closed Championship 2022
		date 2020-02-22	rnd 8	type Blitz	result 1	date 2022-09-24	rnd 3	type Blitz	result 1
		Opponent Nieuwoudt, D (Dawid)				Opponent Ncethelo, B (Bongolethu)
3	4	Tournament SAGF Blitz 2018				Tournament Paul Roos Blitz 2020
		date 2018-04-30	rnd 11	type Blitz	result 1	date 2020-02-22	rnd 3	type Blitz	result 1
		Opponent Van Der Walt, AB (Bernize)				Opponent Wolff, UH (Ulrich)

#	Games	Start				End
1	7	Tournament GPCA Rapid 2023				Tournament CW Top Schools 2023
		date 2023-06-24	rnd 5	type Rapid	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Moollajee, R (Rehaan)				Opponent Klaasen, RJ (Robyn)
2	6	Tournament SAGF Blitz 2018				Tournament SAGF Blitz 2018
		date 2018-04-30	rnd 1	type Blitz	result 1	date 2018-04-30	rnd 6	type Blitz	result 1
		Opponent Van Der Walt, MC (Marelize)				Opponent De Franchi, C (Chiara)
3	5	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-06-01	rnd 4	type Rapid	result 1	date 2019-06-02	rnd 8	type Rapid	result 1
		Opponent Kantunda, M (Munashe)				Opponent Kedama, S (Sandiso)

#	Games	Start				End
1	4	Tournament 2023 Moja Chess Extravaganza				Tournament 2023 Moja Chess Extravaganza
		date 2023-09-30	rnd 1	type Standard	result 1	date 2023-10-01	rnd 4	type Standard	result 1
		Opponent Kgatitswe, S (Sameea Kamillah)				Opponent Amrouni, A (Alexia Shakira)
2	4	Tournament WP Club League 2023				Tournament CW Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Hayward, C (Catherine)				Opponent Klaasen, RJ (Robyn)
3	4	Tournament 2019 South African Closed Chess Championships				Tournament 2019 South African Closed Chess Championships
		date 2019-12-11	rnd 5	type Standard	result 1	date 2019-12-14	rnd 8	type Standard	result 1
		Opponent Van Zyl, C (Charlize)				Opponent Grobbelaar, J (Jacqui)

#	Games	Start				End
1	5	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-06-01	rnd 4	type Rapid	result 1	date 2019-06-02	rnd 8	type Rapid	result 1
		Opponent Kantunda, M (Munashe)				Opponent Kedama, S (Sandiso)
2	3	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 5	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Moollajee, R (Rehaan)				Opponent Galleid, S (Stephen)
3	3	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 1	type Rapid	result 1	date 2023-06-24	rnd 3	type Rapid	result 1
		Opponent Risseeuw, C (Christopher)				Opponent Opperman, C (Connor)

#	Games	Start				End
1	6	Tournament SAGF Blitz 2018				Tournament SAGF Blitz 2018
		date 2018-04-30	rnd 1	type Blitz	result 1	date 2018-04-30	rnd 6	type Blitz	result 1
		Opponent Van Der Walt, MC (Marelize)				Opponent De Franchi, C (Chiara)
2	5	Tournament Paul Roos Blitz 2020				Tournament Western Cape Closed Championship 2022
		date 2020-02-22	rnd 8	type Blitz	result 1	date 2022-09-24	rnd 3	type Blitz	result 1
		Opponent Nieuwoudt, D (Dawid)				Opponent Ncethelo, B (Bongolethu)
3	4	Tournament SAGF Blitz 2018				Tournament Paul Roos Blitz 2020
		date 2018-04-30	rnd 11	type Blitz	result 1	date 2020-02-22	rnd 3	type Blitz	result 1
		Opponent Van Der Walt, AB (Bernize)				Opponent Wolff, UH (Ulrich)

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	Klaasen ,RJ (Robyn Julian)	7	4.5	121.4	7	4.5	121.4	0	0	0	0	0	0
1	Klaasen ,RJ (Robyn Julian)	7	1668.7	1790.1	7	1678.7	1790.1	0	0	0	0	0	0
2	February ,JN (Jesse Nikki)	5	0.5	-340	5	0.5	-340	0	0	0	0	0	0
2	February ,JN (Jesse Nikki)	5	1858.5	1518.5	5	1855.6	1518.5	0	0	0	0	0	0
3	Du Plessis ,AC (Anika)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
3	Du Plessis ,AC (Anika)	4	1606.7	1500.4	4	1607.7	1500.4	0	0	0	0	0	0
4	Laubscher ,A (Anzel)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
4	Laubscher ,A (Anzel)	4	1797.6	1903.9	4	1794.8	1903.9	0	0	0	0	0	0
5	Van Der Merwe ,A (Alexander)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
5	Van Der Merwe ,A (Alexander)	4	1685.4	1579.1	4	1692.2	1579.1	0	0	0	0	0	0
6	Mnyasta ,T (Tezihano)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
6	Mnyasta ,T (Tezihano)	4	1823.1	1716.9	4	1817.8	1716.9	0	0	0	0	0	0
7	Grobbelaar ,J (Jacqui)	4	3.5	318.8	3	3	425	1	0.5	0	0	0	0
7	Grobbelaar ,J (Jacqui)	4	1562.4	1881.2	3	1567.5	1987.4	1	1591.4	1562.4	0	0	0
8	Pick ,DD (Deon Derick)	4	2.5	106.2	3	1.5	0	1	1	425	0	0	0
8	Pick ,DD (Deon Derick)	4	1716.7	1823	3	1724.7	1716.7	1	1784.2	2141.7	0	0	0
9	James ,M (Michael)	4	0.5	-318.8	2	0.5	-212.5	0	0	0	2	0	-425
9	James ,M (Michael)	4	2041.6	1722.8	2	2053.5	1829.1	0	0	0	2	2024.9	1616.6
10	Willenberg ,CG (Craig Glen)	4	1	-212.5	1	0	-425	2	0	-425	1	1	425
10	Willenberg ,CG (Craig Glen)	4	2077.2	1864.7	1	2112	1652.2	2	2092.5	1652.2	1	2108.3	2502.2

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Selkirk, RJ (Rebecca Joy)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms