Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ayerst, R (Rebecca)

Chess SA id

1150306411

FIDE id

Date of birth

2015-03-09 (U12)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1163.9

Item	Main	Standard	Rapid	Blitz
Rating	1203.4	1204.4	1187.7	1200
Raw rating	1203.4	1204.2	1187.7	1200
Weighted rating	1201	1204.4	1186	1200
Weighted performance	1083	0	0	0
Floor	719.6	726.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	165	164.8	168.7	165.8
Highest rating	1219.6 2025-06-01	1226.4 2025-06-01	1200 2024-11-01	1200 2024-07-01
Highest raw rating	1219.6 2025-06-01	1226.4 2025-06-01	1200 2024-06-01	1200 2024-07-01
Highest weighted rating	1219.6 2024-11-01	1226.4 2025-06-01	1200 2024-11-01	1200 2024-07-01
Highest weighted performance	1200 2024-12-01	1200 2024-07-01	1200 2024-12-01	1200 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.1	0	0
New rating	1203.4	1204.5	1187.7	1200
Analysis
Rating	1203.4	1204.4	1187.7	1200
Raw rating	1203.4	1204.2	1187.7	1200
Weighted rating	1201	1204.4	1186
Weighted performance	1083	0	0
K-factor	36	36	36	36
Floor	719.6	726.4	700	700
Max/Min rating change allowed	165	164.8	168.7	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	1203.4	1204.2	1187.7	1200
New weighted rating	1201.3	1204.5	1186	1200
New weighted performance	1076.4	0	0	0
Temp new rating	1203.4	1204.5	1187.7	1200
Temp new rating +/-	0	0.1	0	0
Final new rating +/-	0	0.1	0	0
New rating	1203.4	1204.5	1187.7	1200
New K-factor	36	36	36	36
New floor	719.6	726.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	24	24	0
	6	0	6
	0	0	0
	0	0	0
	0	0	0
History	30	24	6

Games since
	Main 30	Standard 24		Rapid 6		Blitz 0
Gender	Male
Age group	U12
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	24	7.5	31.25	-159.4	1313.7	1154.3
Standard	24	7.5	31.25	-159.4	1313.7	1154.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	30	10	33.33	-141.7	1299.3	1157.7
Standard	24	7.5	31.25	-159.4	1313.7	1154.3
Rapid	6	2.5	41.67	-70.8	1241.7	1170.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1203.4	1204.2	1187.7	1200
2025-09-30	1203.4	1204.2	1187.7	1200
2025-09-01	1197.3	1200.3	1187.7	1200
2025-08-01	1197.3	1200.3	1187.7	1200
2025-07-01	1200.1	1203.5	1187.7	1200
2025-06-01	1219.6	1226.4	1187.7	1200
2025-05-01	1206.9	1210.5	1187.7	1200
2025-04-01	1206.9	1210.5	1187.7	1200
2025-03-01	1206.9	1210.5	1187.7	1200
2025-02-01	1197	1200	1187.3	1200
2025-01-01	1194.5	1200	1176.8	1200
2024-12-01	1194.5	1200	1176.8	1200
2024-11-01	1194.5	1200	1176.8	1200
2024-10-01	1194.5	1200	1176.8	1200
2024-09-01	1194.5	1200	1176.8	1200
2024-08-01	1194.5	1200	1176.8	1200
2024-07-01	1194.5	1200	1176.8	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	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	EC Closed 2025 (U12 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
2	Eastern Cape Inter-Regional Team Chess Championship 2025 (U12)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	4	0	Yes	Analysis
3	NMBCU Closed 2025 (U12)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	4	0.5	Yes	Analysis
4	Karen Ashworth 2025 (C)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
5	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U12 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
2	Eastern Cape Inter-Regional Team Chess Championship 2025 (U12)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	4	0	Yes	Analysis
3	NMBCU Closed 2025 (U12)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	4	0.5	Yes	Analysis
4	Karen Ashworth 2025 (C)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
5	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
6	Willow Academy 2024 (C)	2024-06-22	2024-06-22	Rapid	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 4	type Rapid	result 1	date 2024-06-22	rnd 6	type Rapid	result 1
		Opponent Sana, A (Azakhanye)				Opponent Van Vliet, J (Janu)
2	2	Tournament Karen Ashworth 2025				Tournament Karen Ashworth 2025
		date 2025-04-26	rnd 4	type Standard	result 1	date 2025-04-26	rnd 5	type Standard	result 1
		Opponent Hayward, R (Robert)				Opponent Kitching, A (Abby-Gail)
3	2	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Dikana, I (Iminathi)				Opponent Madikane, A (Alime)

#	Games	Start				End
1	2	Tournament Karen Ashworth 2025				Tournament Karen Ashworth 2025
		date 2025-04-26	rnd 4	type Standard	result 1	date 2025-04-26	rnd 5	type Standard	result 1
		Opponent Hayward, R (Robert)				Opponent Kitching, A (Abby-Gail)
2	2	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Dikana, I (Iminathi)				Opponent Madikane, A (Alime)
3	1	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Petrus, I (Isabella)				Opponent Petrus, I (Isabella)

#	Games	Start				End
1	3	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 4	type Rapid	result 1	date 2024-06-22	rnd 6	type Rapid	result 1
		Opponent Sana, A (Azakhanye)				Opponent Van Vliet, J (Janu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Karen Ashworth 2025				Tournament Karen Ashworth 2025
		date 2025-04-26	rnd 4	type Standard	result 1	date 2025-04-26	rnd 5	type Standard	result 1
		Opponent Hayward, R (Robert)				Opponent Kitching, A (Abby-Gail)
2	2	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Dikana, I (Iminathi)				Opponent Madikane, A (Alime)
3	1	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Petrus, I (Isabella)				Opponent Petrus, I (Isabella)

#	Games	Start				End
1	2	Tournament Karen Ashworth 2025				Tournament Karen Ashworth 2025
		date 2025-04-26	rnd 4	type Standard	result 1	date 2025-04-26	rnd 5	type Standard	result 1
		Opponent Hayward, R (Robert)				Opponent Kitching, A (Abby-Gail)
2	2	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Dikana, I (Iminathi)				Opponent Madikane, A (Alime)
3	1	Tournament EC Closed 2025				Tournament EC Closed 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Petrus, I (Isabella)				Opponent Petrus, I (Isabella)

#	Games	Start				End
1	1	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 6	type Rapid	result 1	date 2024-06-22	rnd 6	type Rapid	result 1
		Opponent Van Vliet, J (Janu)				Opponent Van Vliet, J (Janu)
2	1	Tournament Willow Academy 2024				Tournament Willow Academy 2024
		date 2024-06-22	rnd 4	type Rapid	result 1	date 2024-06-22	rnd 4	type Rapid	result 1
		Opponent Sana, A (Azakhanye)				Opponent Sana, A (Azakhanye)

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	Van Dyk ,B (Ben)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Dyk ,B (Ben)	2	1321.5	896.5	2	1327.6	896.5	0	0	0	0	0	0
2	Armstrong ,I (Isabella)	2	1	0	2	1	0	0	0	0	0	0	0
2	Armstrong ,I (Isabella)	2	1346.9	1346.9	2	1341.8	1346.9	0	0	0	0	0	0
3	King ,J (Jaymie)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	King ,J (Jaymie)	2	1367.1	942.1	1	1447.2	942.1	1	1200	942.1	0	0	0
4	Petrus ,I (Isabella)	1	1	425	1	1	425	0	0	0	0	0	0
4	Petrus ,I (Isabella)	1	1303.5	1728.5	1	1269.8	1728.5	0	0	0	0	0	0
5	Madikane ,A (Alime)	1	1	425	1	1	425	0	0	0	0	0	0
5	Madikane ,A (Alime)	1	1203.5	1628.5	1	1198.2	1628.5	0	0	0	0	0	0
6	Moore ,R (Righard)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Moore ,R (Righard)	1	1189	764	1	1197.1	764	0	0	0	0	0	0
7	Mclachlan ,G (Geoffrey)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mclachlan ,G (Geoffrey)	1	1518.6	1093.6	1	1536.5	1093.6	0	0	0	0	0	0
8	Dikana ,I (Iminathi)	1	1	425	1	1	425	0	0	0	0	0	0
8	Dikana ,I (Iminathi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Sonti ,K (Khwezi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sonti ,K (Khwezi)	1	1445	1020	1	1434.1	1020	0	0	0	0	0	0
10	Ntsilatana ,Y (Yothando)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Ntsilatana ,Y (Yothando)	1	1274.5	1274.5	1	1265	1274.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Ayerst, R (Rebecca)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms