Chess South Africa Ratings Database

PLAYER PAGE

Personal

Beyers, D (Donna-Claire)

Chess SA id

2090102785

FIDE id

Date of birth

2009-08-05 (U18)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1216.6	1138.8	1272.4	1200
Raw rating	1216.6	1138.8	1272.4	1200
Weighted rating	1183.3	1138.8	1239.6	1200
Weighted performance	1010.6	625.7	0	0
Floor	716.6	700	772.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	162	180.9	149.6	165.8
Highest rating	1216.6 2025-03-01	1200 2018-02-01	1272.4 2025-03-01	1200 2018-10-01
Highest raw rating	1216.6 2025-03-01	1200 2018-02-01	1272.4 2025-03-01	1200 2024-03-01
Highest weighted rating	1216.6 2018-02-01	1200 2018-02-01	1231.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1216.6	1138.8	1272.4	1200
Analysis
Rating	1216.6	1138.8	1272.4	1200
Raw rating	1216.6	1138.8	1272.4	1200
Weighted rating	1183.3	1138.8	1239.6
Weighted performance	1010.6	625.7	0
K-factor	36	36	36	36
Floor	716.6	700	772.4	700
Max/Min rating change allowed	162	180.9	149.6	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	1216.6	1138.8	1272.4	1200
New weighted rating	1187.2	1138.8	1243.4	1200
New weighted performance	1009.3	624.5	0	0
Temp new rating	1216.6	1138.8	1272.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1216.6	1138.8	1272.4	1200
New K-factor	36	36	36	36
New floor	716.6	700	772.4	700

Item	Main	Standard	Rapid
	0	0	0
	12	0	12
	0	0	0
	0	0	0
	16	16	0
	0	0	0
History	52	40	12

Games since
	Main 12	Standard 0		Rapid 12		Blitz 0
Gender	Female
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
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	12	7.5	62.5	106.2	1277.2	1383.4
Standard	0	0	0	0	0	0
Rapid	12	7.5	62.5	106.2	1277.2	1383.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	52	23	44.23	-49	1182	1132.9
Standard	40	15.5	38.75	-95.6	1153.4	1057.8
Rapid	12	7.5	62.5	106.2	1277.2	1383.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1216.6	1138.8	1272.4	1200
2025-09-01	1216.6	1138.8	1272.4	1200
2025-08-01	1216.6	1138.8	1272.4	1200
2025-07-01	1216.6	1138.8	1272.4	1200
2025-06-01	1216.6	1138.8	1272.4	1200
2025-05-01	1216.6	1138.8	1272.4	1200
2025-04-01	1216.6	1138.8	1272.4	1200
2025-03-01	1216.6	1138.8	1272.4	1200
2025-02-01	1143.2	1138.8	1200	1200
2025-01-01	1143.2	1138.8	1200	1200
2024-12-01	1143.2	1138.8	1200	1200
2024-11-01	1143.2	1138.8	1200	1200
2024-10-01	1143.2	1138.8	1200	1200
2024-09-01	1143.2	1138.8	1200	1200
2024-08-01	1143.2	1138.8	1200	1200
2024-07-01	1143.2	1138.8	1200	1200
2024-06-01	1143.2	1138.8	1200	1200
2024-08-01	1143.2	1138.8	1200	1200
2024-04-01	1143.2	1138.8	1200	1200
2024-03-01	1143.2	1138.8	1200	1200
2024-02-01	1143.2	1138.8	1200	1200
2024-01-01	1143.2	1138.8	1200	1200
2023-12-01	1143.2	1138.8	1200	1200
2023-11-01	1143.2	1138.8	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	Overberg Schools - HS Trials 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
2	Overberg Schools & Federation Open 2025 (U17)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Schools - HS Trials 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
2	Overberg Schools & Federation Open 2025 (U17)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
3	Overberg Topskole 2022 (O13)	2022-08-20	2022-08-20	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
4	Western Cape Schools 2022 (U13 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
5	Overberg Primary Schools Closed 2022 (U13 Girls)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
6	Overberg Closed 2020 (U11 Girls)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
7	Western Cape Top Schools 2019 (U13 Girls)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
8	Overberg Top Schools 2019 (U11)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
9	Overberg First Trial 2019 (U12)	2019-02-23	2019-02-23	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
10	Overberg 3rd Trial 2018 (U10)	2018-05-26	2018-05-26	Standard	Overberg (WOS)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 2	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 0.5
		Opponent Starke, J (Jesi-Jade)				Opponent Du Toit, I (Isabella)
2	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Daisy, L (Linda)				Opponent Pekeur, N (Nicole)
3	3	Tournament Overberg Closed 2020				Tournament Overberg Primary Schools Closed 2022
		date 2020-03-15	rnd 4	type Standard	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Groenewald, J (Jessica)				Opponent Mazala, A (Asakhe)

#	Games	Start				End
1	3	Tournament Overberg Closed 2020				Tournament Overberg Primary Schools Closed 2022
		date 2020-03-15	rnd 4	type Standard	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Groenewald, J (Jessica)				Opponent Mazala, A (Asakhe)
2	2	Tournament Western Cape Schools 2022				Tournament Overberg Topskole 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-08-20	rnd 1	type Standard	result 1
		Opponent Herselman, K (Kara)				Opponent De Vos, K (Kyle)
3	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Bontom, J (Jaden Leigh)				Opponent Bontom, J (Jaden Leigh)

#	Games	Start				End
1	4	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 2	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 0.5
		Opponent Starke, J (Jesi-Jade)				Opponent Du Toit, I (Isabella)
2	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Daisy, L (Linda)				Opponent Pekeur, N (Nicole)
3	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 1	type Rapid	result 1
		Opponent Sithole, A (Awela)				Opponent Sithole, A (Awela)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Daisy, L (Linda)				Opponent Pekeur, N (Nicole)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 2	type Rapid	result 1	date 2025-02-01	rnd 4	type Rapid	result 1
		Opponent Starke, J (Jesi-Jade)				Opponent Koko, A (Anisa)
3	3	Tournament Overberg Closed 2020				Tournament Overberg Primary Schools Closed 2022
		date 2020-03-15	rnd 4	type Standard	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Groenewald, J (Jessica)				Opponent Mazala, A (Asakhe)

#	Games	Start				End
1	3	Tournament Overberg Closed 2020				Tournament Overberg Primary Schools Closed 2022
		date 2020-03-15	rnd 4	type Standard	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Groenewald, J (Jessica)				Opponent Mazala, A (Asakhe)
2	2	Tournament Western Cape Schools 2022				Tournament Overberg Topskole 2022
		date 2022-05-29	rnd 6	type Standard	result 1	date 2022-08-20	rnd 1	type Standard	result 1
		Opponent Herselman, K (Kara)				Opponent De Vos, K (Kyle)
3	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Bontom, J (Jaden Leigh)				Opponent Bontom, J (Jaden Leigh)

#	Games	Start				End
1	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Daisy, L (Linda)				Opponent Pekeur, N (Nicole)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 2	type Rapid	result 1	date 2025-02-01	rnd 4	type Rapid	result 1
		Opponent Starke, J (Jesi-Jade)				Opponent Koko, A (Anisa)
3	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 1	type Rapid	result 1
		Opponent Sithole, A (Awela)				Opponent Sithole, A (Awela)

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	Magida ,S (Sinawo)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Magida ,S (Sinawo)	2	1215.6	790.6	2	1171.6	790.6	0	0	0	0	0	0
2	Mdlokovane ,S (Sphendulwe)	2	2	425	1	1	425	1	1	425	0	0	0
2	Mdlokovane ,S (Sphendulwe)	2	1183.1	1608.1	1	1142	1608.1	1	1233.8	1608.1	0	0	0
3	Koko ,A (Anisa)	2	1	0	0	0	0	2	1	0	0	0	0
3	Koko ,A (Anisa)	2	1406	1406	0	0	0	2	1240.4	1406	0	0	0
4	Du Toit ,I (Isabella)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
4	Du Toit ,I (Isabella)	2	1289.3	1076.8	0	0	0	2	1231.2	1076.8	0	0	0
5	Bantom ,K (Krishna)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Bantom ,K (Krishna)	1	1155.1	730.1	1	1116.1	730.1	0	0	0	0	0	0
6	Haman ,B (Bionica)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Haman ,B (Bionica)	1	1065.5	640.5	1	1036.8	640.5	0	0	0	0	0	0
7	Ruiters ,J (Justine)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ruiters ,J (Justine)	1	1127.6	1552.6	1	1112.4	1552.6	0	0	0	0	0	0
8	Brink ,S (Samantha)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Brink ,S (Samantha)	1	1179.5	754.5	1	1179.9	754.5	0	0	0	0	0	0
9	Uys ,R (Riane)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Uys ,R (Riane)	1	1048.4	623.4	1	992.8	623.4	0	0	0	0	0	0
10	Livi ,Z (Zininzi)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Livi ,Z (Zininzi)	1	1251.8	826.8	1	1249.2	826.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Beyers, D (Donna-Claire)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms