Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bester, K (Keira)

Chess SA id

209060775

FIDE id

Date of birth

2009-05-15 (U18)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-01-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1293	1281.8	986.6	888.2
Raw rating	1293	1281.8	986.6	888.2
Weighted rating	1293	1281.8	986.6	888.2
Weighted performance	316.8	311.5	0	0
Floor	841.6	829.3	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	145.2	147.6	224.7	258.6
Highest rating	1341.6 2019-12-01	1329.3 2019-12-01	1200 2018-02-01	1200 2024-03-01
Highest raw rating	1341.6 2019-12-01	1329.3 2019-12-01	986.6 2024-03-01	888.2 2024-03-01
Highest weighted rating	1341.6 2020-11-01	1329.3 2020-11-01	986.6 2024-11-01	888.2 2024-11-01
Highest weighted performance	1337.3 2019-07-01	1317.6 2019-08-01	1200 2018-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1293	1281.8	986.6	888.2
Analysis
Rating	1293	1281.8	986.6	888.2
Raw rating	1293	1281.8	986.6	888.2
Weighted rating	1293	1281.8	986.6
Weighted performance	316.8	311.5	0
K-factor	36	36	40	40
Floor	841.6	829.3	500	500
Max/Min rating change allowed	145.2	147.6	224.7	258.6
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	1293	1281.8	986.6	888.2
New weighted rating	1293	1281.8	986.6	888.2
New weighted performance	316.3	311.1	0	0
Temp new rating	1293	1281.8	986.6	888.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1293	1281.8	986.6	888.2
New K-factor	36	36	40	40
New floor	841.6	829.3	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	372	357	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	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	148	93	62.84	109.1	1063.3	1172.5
Standard	138	85.5	61.96	101.6	1063.3	1164.9
Rapid	10	7.5	75	212.5	1064.4	1276.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1293	1281.8	986.6	888.2
2025-09-01	1293	1281.8	986.6	888.2
2025-08-01	1293	1281.8	986.6	888.2
2025-07-01	1293	1281.8	986.6	888.2
2025-06-01	1293	1281.8	986.6	888.2
2025-05-01	1293	1281.8	986.6	888.2
2025-04-01	1293	1281.8	986.6	888.2
2025-03-01	1293	1281.8	986.6	888.2
2025-02-01	1293	1281.8	986.6	888.2
2025-01-01	1293	1281.8	986.6	888.2
2024-12-01	1293	1281.8	986.6	888.2
2024-11-01	1293	1281.8	986.6	888.2
2024-10-01	1293	1281.8	986.6	888.2
2024-09-01	1293	1281.8	986.6	888.2
2024-08-01	1293	1281.8	986.6	888.2
2024-07-01	1293	1281.8	986.6	888.2
2024-06-01	1293	1281.8	986.6	888.2
2024-08-01	1293	1281.8	986.6	888.2
2024-04-01	1293	1281.8	986.6	888.2
2024-03-01	1293	1281.8	986.6	888.2
2024-02-01	1293	1281.8	986.6	888.2
2024-01-01	1293	1281.8	986.6	888.2
2023-12-01	1293	1281.8	986.6	888.2
2023-11-01	1293	1281.8	986.6	888.2

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	2019 South African Junior Team Championships (U12A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis
2	2019 Gauteng School League Finals (U13 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
3	JHB Metro Closed 2019 (U12)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
4	Boksburg Chess Club Open 2019 (C)	2019-07-13	2019-07-13	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
5	2019 Super 12 Laerskole (Juniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	4	Yes	Analysis
6	JNW Club - Charterhouse Open 2019 (B)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
7	2019 Waterkloof Open (C)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
8	2019 South African Junior Closed Chess Championship (U10 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	6.5	Yes	Analysis
9	2019 Blou Bul (C)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
10	Boksburg Open 2019 (B)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
12	Inter Region GE vs JHB Metro 2018 (U10A)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
13	Chessnuts Spring 2018 (Kings)	2018-09-29	2018-09-29	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
14	2018 Gauteng League Final (U11)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
15	JHB Metro Junior Closed 2018 (U10)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
16	Boksburg Chess Club Open 2018 (U10)	2018-07-14	2018-07-14	Standard	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis
17	2018 Super 12 (Junior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	3.5	Yes	Analysis
18	2018 Capablanca Swiss (C)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
19	Fonties Challenge 2018 (U13+U15)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
20	2018 South African Junior Closed Chess Championships (U10 Girls)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	7.5	Yes	Analysis
21	2018 Waterkloof Open (D)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
22	Randburg Club - Summer Swiss 2018	2018-01-30	2018-03-13	Standard	Johannesburg Metro (GJM)	7	6	3	Yes	Analysis
23	The Outpost Chess Club Open 2018 (C)	2018-03-16	2018-03-17	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis
24	JNW Club - Trinityhouse Little Falls Open 2018 (U10)	2018-02-17	2018-02-17	Standard	Johannesburg Metro (GJM)	6	6	5	Yes	Analysis
25	Chessnuts - Kickoff Open 2018 (C)	2018-02-09	2018-02-10	Standard	Johannesburg Metro (GJM)	6	3	1	Yes	Analysis
26	South African Junior Team Championships 2017 (U10A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2018 Super 12				Tournament JHB Metro Junior Closed 2018
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Swanepoel, LA (Lourens Alexander)				Opponent Maritz, J (Jaydon)
2	8	Tournament South African Junior Team Championships 2018				Tournament Boksburg Open 2019
		date 2018-12-16	rnd 1	type Standard	result 1	date 2019-01-19	rnd 1	type Standard	result 1
		Opponent Kotze, L (Lukas)				Opponent Jugga, A (Akshay)
3	8	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-04-02	rnd 3	type Standard	result 1	date 2018-04-06	rnd 10	type Standard	result 0.5
		Opponent Van Der Bank, C (Charlene)				Opponent Gibson, A (Amy-Leigh)

#	Games	Start				End
1	8	Tournament South African Junior Team Championships 2018				Tournament Boksburg Open 2019
		date 2018-12-16	rnd 1	type Standard	result 1	date 2019-01-19	rnd 1	type Standard	result 1
		Opponent Kotze, L (Lukas)				Opponent Jugga, A (Akshay)
2	8	Tournament Boksburg Chess Club Open 2018				Tournament JHB Metro Junior Closed 2018
		date 2018-07-14	rnd 1	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Bothma, J (Jaculene)				Opponent Maritz, J (Jaydon)
3	8	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-04-02	rnd 3	type Standard	result 1	date 2018-04-06	rnd 10	type Standard	result 0.5
		Opponent Van Der Bank, C (Charlene)				Opponent Gibson, A (Amy-Leigh)

#	Games	Start				End
1	5	Tournament 2018 Super 12				Tournament 2019 Super 12 Laerskole
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Swanepoel, LA (Lourens Alexander)				Opponent Davis, JJ (Jan)
2	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 0.5
		Opponent Marx, J (Joshua)				Opponent Louw, B (Benrico)
3	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Klopper, R (Rian)				Opponent Klopper, R (Rian)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament South African Junior Team Championships 2018				Tournament Boksburg Open 2019
		date 2018-12-16	rnd 1	type Standard	result 1	date 2019-01-19	rnd 1	type Standard	result 1
		Opponent Kotze, L (Lukas)				Opponent Jugga, A (Akshay)
2	7	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-04-02	rnd 3	type Standard	result 1	date 2018-04-06	rnd 9	type Standard	result 1
		Opponent Van Der Bank, C (Charlene)				Opponent Nunnan, Y (Yanti)
3	6	Tournament Boksburg Chess Club Open 2019				Tournament JHB Metro Closed 2019
		date 2019-07-13	rnd 2	type Standard	result 1	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Raj, T (Tejashavi)

#	Games	Start				End
1	8	Tournament South African Junior Team Championships 2018				Tournament Boksburg Open 2019
		date 2018-12-16	rnd 1	type Standard	result 1	date 2019-01-19	rnd 1	type Standard	result 1
		Opponent Kotze, L (Lukas)				Opponent Jugga, A (Akshay)
2	7	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-04-02	rnd 3	type Standard	result 1	date 2018-04-06	rnd 9	type Standard	result 1
		Opponent Van Der Bank, C (Charlene)				Opponent Nunnan, Y (Yanti)
3	6	Tournament Boksburg Chess Club Open 2019				Tournament JHB Metro Closed 2019
		date 2019-07-13	rnd 2	type Standard	result 1	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Olivier, L (Lienke)				Opponent Raj, T (Tejashavi)

#	Games	Start				End
1	5	Tournament 2018 Super 12				Tournament 2019 Super 12 Laerskole
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Swanepoel, LA (Lourens Alexander)				Opponent Davis, JJ (Jan)
2	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Klopper, R (Rian)				Opponent Klopper, R (Rian)
3	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 1	type Rapid	result 1
		Opponent Marx, J (Joshua)				Opponent Marx, J (Joshua)

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	Ramlall ,S (Sanjana)	5	0	-425	5	0	-425	0	0	0	0	0	0
1	Ramlall ,S (Sanjana)	5	1218.5	793.5	5	1226.1	793.5	0	0	0	0	0	0
2	Olivier ,L (Lienke)	2	2	425	2	2	425	0	0	0	0	0	0
2	Olivier ,L (Lienke)	2	1075.6	1500.6	2	1052.6	1500.6	0	0	0	0	0	0
3	Van Urk ,M (Milan)	2	1	0	2	1	0	0	0	0	0	0	0
3	Van Urk ,M (Milan)	2	868.8	868.8	2	858.6	868.8	0	0	0	0	0	0
4	Olkers ,D (Declan)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Olkers ,D (Declan)	2	1254.9	829.9	2	1251.2	829.9	0	0	0	0	0	0
5	Van Der Spuy ,C (Christiaan)	2	2	425	2	2	425	0	0	0	0	0	0
5	Van Der Spuy ,C (Christiaan)	2	798.1	1223.1	2	801.7	1223.1	0	0	0	0	0	0
6	Bennie ,J (Johannes)	2	2	425	2	2	425	0	0	0	0	0	0
6	Bennie ,J (Johannes)	2	1007.9	1432.9	2	1005.2	1432.9	0	0	0	0	0	0
7	Kushar ,T (Tristan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Kushar ,T (Tristan)	2	1248.7	1036.2	2	1250.5	1036.2	0	0	0	0	0	0
8	Pauer ,M (Mieke)	2	2	425	2	2	425	0	0	0	0	0	0
8	Pauer ,M (Mieke)	2	897.8	1322.8	2	888.8	1322.8	0	0	0	0	0	0
9	Roetz ,K (Kyle)	2	2	425	2	2	425	0	0	0	0	0	0
9	Roetz ,K (Kyle)	2	1059.7	1484.7	2	1062.1	1484.7	0	0	0	0	0	0
10	Rautenbach ,H (Helen Christine)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Rautenbach ,H (Helen Christine)	2	1311.8	886.8	1	1255	886.8	1	757.2	886.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Bester, K (Keira)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms