Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnson, A (Amber)

Chess SA id

2150135423

FIDE id

Date of birth

2015-09-09 (U12)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1314.4	1321	1190.4	1096
Raw rating	1314.4	1321	1190.4	1096
Weighted rating	1313.9	1320.8	1190.4	1096
Weighted performance	920.1	932.9	772.9	0
Floor	905.2	912.3	730.1	700
K-factor	32	32	36	36
Min/Max rating change allowed	140.9	139.6	168.1	192.3
Highest rating	1419.9 2023-04-01	1509.9 2022-03-01	1312.6 2021-10-01	1200 2018-10-01
Highest raw rating	1405.2 2023-05-01	1412.3 2023-05-01	1230.1 2022-07-01	1200 2019-12-01
Highest weighted rating	1405.2 2025-02-01	1412.3 2025-02-01	1230.1 2022-07-01	1200 2018-10-01
Highest weighted performance	1419.9 2023-04-01	1509.9 2022-03-01	1312.6 2021-10-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1314.4	1321	1190.4	1096
Analysis
Rating	1314.4	1321	1190.4	1096
Raw rating	1314.4	1321	1190.4	1096
Weighted rating	1313.9	1320.8	1190.4
Weighted performance	920.1	932.9	772.9
K-factor	32	32	36	36
Floor	905.2	912.3	730.1	700
Max/Min rating change allowed	140.9	139.6	168.1	192.3
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	1314.4	1321	1190.4	1096
New weighted rating	1314	1320.8	1190.4	1096
New weighted performance	919.7	932.4	772.5	0
Temp new rating	1314.4	1321	1190.4	1096
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1314.4	1321	1190.4	1096
New K-factor	32	32	36	36
New floor	905.2	912.3	730.1	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	62	56	6	0
	69	37	26	6
	4	0	4	0
History	135	93	36	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	135	70	51.85	15.7	1239.8	1255.6
Standard	93	50.5	54.3	36.6	1237.8	1274.3
Rapid	36	18.5	51.39	11.8	1233.5	1245.3
Blitz	6	1	16.67	-283.3	1309.9	1026.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1314.4	1321	1190.4	1096
2025-09-01	1314.4	1321	1190.4	1096
2025-08-01	1314.4	1321	1190.4	1096
2025-07-01	1314.4	1321	1190.4	1096
2025-06-01	1314.4	1321	1190.4	1096
2025-05-01	1314.4	1321	1190.4	1096
2025-04-01	1314.4	1321	1190.4	1096
2025-03-01	1314.4	1321	1190.4	1096
2025-02-01	1314.4	1321	1190.4	1096
2025-01-01	1313.2	1320.4	1190.4	1096
2024-12-01	1313.2	1320.4	1190.4	1096
2024-11-01	1313.2	1320.4	1190.4	1096
2024-10-01	1313.2	1320.4	1190.4	1096
2024-09-01	1313.2	1320.4	1190.4	1096
2024-08-01	1313.2	1320.4	1190.4	1096
2024-07-01	1313.2	1320.4	1190.4	1096
2024-06-01	1313.2	1320.4	1190.4	1096
2024-08-01	1313.2	1320.4	1190.4	1096
2024-04-01	1313.2	1320.4	1190.4	1096
2024-03-01	1313.2	1320.4	1190.4	1096
2024-02-01	1313.2	1320.4	1190.4	1096
2024-01-01	1313.2	1320.4	1190.4	1096
2023-12-01	1313.2	1320.4	1190.4	1096
2023-11-01	1313.2	1320.4	1190.4	1096

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	Western Cape Top Schools 2023 (U11 Girls)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
2	Eden Top Schools 2023 (U11 Girls)	2023-08-19	2023-08-19	Standard	Eden (WEG)	6	4	2.5	Yes	Analysis
3	CW Top Schools 2023 (Advanced)	2023-08-11	2023-08-13	Standard	West Coast (WCU)	6	5	1	Yes	Analysis
4	Knysna Oyster Festival 2023 (Juniors)	2023-07-01	2023-07-01	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
5	Western Cape PS Individuals 2023 (U9 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
6	Eden Trials 2+3 2023 (U10)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	6	Yes	Analysis
7	George Chess Club Winter Open 2023 (D)	2023-05-20	2023-05-20	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
8	Heidelberg Big Pumpkin Chess Tournament 2023 (C)	2023-04-01	2023-04-01	Standard	Eden (WEG)	5	5	4	Yes	Analysis
9	Eden Trails 1 2023 (U9 Girls)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
10	Hessequa Proewe 2 2023 (O9 Dogters)	2023-02-11	2023-02-11	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
11	Hessequa Proewe 1 2023 (O9 Dogters)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	4	Yes	Analysis
12	George Open 2022 (D)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
13	VGK 2022 (Rapid Development)	2022-11-12	2022-11-12	Rapid	Eden (WEG)	6	5	1.5	Yes	Analysis
14	VGK 2022 (Blitz)	2022-11-12	2022-11-12	Blitz	Eden (WEG)	6	6	1	Yes	Analysis
15	Hessequa Ontwikkeling 2022 (Laerskole)	2022-10-22	2022-10-22	Rapid	Eden (WEG)	5	5	3.5	Yes	Analysis
16	Pacaltsdorp Chess Club 2022 (Development)	2022-08-27	2022-08-27	Rapid	Eden (WEG)	6	6	2.5	Yes	Analysis
17	Eden Topskole 2022 (O11 Dogters)	2022-08-13	2022-08-13	Standard	Eden (WEG)	6	6	3	Yes	Analysis
18	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	10	1	Yes	Analysis
19	South African Open 2022 (U12)	2022-07-11	2022-07-13	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
20	Knysna Oyster Festival Rapid Chess 2022 (B)	2022-07-02	2022-07-02	Rapid	Eden (WEG)	5	5	2.5	Yes	Analysis
21	OCF Youth Day Tournament 2022 (C)	2022-06-18	2022-06-18	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
22	Western Cape Schools 2022 (U7 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
23	Eden Proewe 1 2022 (O7 Dogters)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	4	3.5	Yes	Analysis
24	Eden Proewe 2021 (O7 Seuns+Dogters)	2021-10-15	2021-10-15	Rapid	Eden (WEG)	5	4	2.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Eden Proewe 2021				Tournament Western Cape Schools 2022
		date 2021-10-15	rnd 4	type Rapid	result 1	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Hattingh, G (Gerhard)				Opponent Williams, M (Mackenzy)
2	6	Tournament Hessequa Proewe 2 2023				Tournament Eden Trails 1 2023
		date 2023-02-11	rnd 3	type Standard	result 0.5	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Fourie, L (Lieza Ann)				Opponent Norgarb, S (Sophia)
3	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Scholtz, G (Gera)				Opponent Alberts, M (Marnel)

#	Games	Start				End
1	6	Tournament Hessequa Proewe 2 2023				Tournament Eden Trails 1 2023
		date 2023-02-11	rnd 3	type Standard	result 0.5	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Fourie, L (Lieza Ann)				Opponent Norgarb, S (Sophia)
2	5	Tournament Eden Proewe 1 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 2	type Standard	result 0.5	date 2022-05-28	rnd 1	type Standard	result 1
		Opponent Steyn, M (Mari)				Opponent Williams, M (Mackenzy)
3	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Scholtz, G (Gera)				Opponent Alberts, M (Marnel)

#	Games	Start				End
1	5	Tournament Hessequa Ontwikkeling 2022				Tournament VGK 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-11-12	rnd 1	type Rapid	result 1
		Opponent Swanepoel, J (Jana)				Opponent Fakier, A (Abdur-Rahmaan)
2	3	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Knysna Oyster Festival Rapid Chess 2022
		date 2022-07-02	rnd 2	type Rapid	result 0.5	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Moses, J (Jay-Leigh)				Opponent Loxton, A (Aneeqa)
3	2	Tournament VGK 2022				Tournament Knysna Oyster Festival 2023
		date 2022-11-12	rnd 5	type Rapid	result 0.5	date 2023-07-01	rnd 1	type Rapid	result 1
		Opponent Wewers, A (Adriano)				Opponent Raubenheimer, T (Tashnique)

#	Games	Start				End
1	1	Tournament VGK 2022				Tournament VGK 2022
		date 2022-11-12	rnd 6	type Blitz	result 1	date 2022-11-12	rnd 6	type Blitz	result 1
		Opponent Moses, J (Jay-Leigh)				Opponent Moses, J (Jay-Leigh)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Scholtz, G (Gera)				Opponent Alberts, M (Marnel)
2	4	Tournament Heidelberg Big Pumpkin Chess Tournament 2023				Tournament Eden Trials 2+3 2023
		date 2023-04-01	rnd 5	type Standard	result 1	date 2023-04-15	rnd 3	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Norgarb, S (Sophia)
3	4	Tournament Eden Trails 1 2023				Tournament Heidelberg Big Pumpkin Chess Tournament 2023
		date 2023-03-11	rnd 5	type Standard	result 1	date 2023-04-01	rnd 3	type Standard	result 1
		Opponent Chaonwa, N (Natalie)				Opponent Riddles, C (Ciara)

#	Games	Start				End
1	4	Tournament Western Cape Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-09-02	rnd 3	type Standard	result 1	date 2023-09-03	rnd 6	type Standard	result 1
		Opponent Scholtz, G (Gera)				Opponent Alberts, M (Marnel)
2	4	Tournament Heidelberg Big Pumpkin Chess Tournament 2023				Tournament Eden Trials 2+3 2023
		date 2023-04-01	rnd 5	type Standard	result 1	date 2023-04-15	rnd 3	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Norgarb, S (Sophia)
3	4	Tournament Eden Trails 1 2023				Tournament Heidelberg Big Pumpkin Chess Tournament 2023
		date 2023-03-11	rnd 5	type Standard	result 1	date 2023-04-01	rnd 3	type Standard	result 1
		Opponent Chaonwa, N (Natalie)				Opponent Riddles, C (Ciara)

#	Games	Start				End
1	3	Tournament Hessequa Ontwikkeling 2022				Tournament VGK 2022
		date 2022-10-22	rnd 4	type Rapid	result 1	date 2022-11-12	rnd 1	type Rapid	result 1
		Opponent Highburg, T (Troy)				Opponent Fakier, A (Abdur-Rahmaan)
2	2	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Knysna Oyster Festival Rapid Chess 2022
		date 2022-07-02	rnd 3	type Rapid	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Saayman, V (Veronique)				Opponent Loxton, A (Aneeqa)
3	2	Tournament OCF Youth Day Tournament 2022				Tournament OCF Youth Day Tournament 2022
		date 2022-06-18	rnd 2	type Rapid	result 1	date 2022-06-18	rnd 3	type Rapid	result 1
		Opponent Van Rensburg, A (Anzo)				Opponent Swart, W (Wehan)

#	Games	Start				End
1	1	Tournament VGK 2022				Tournament VGK 2022
		date 2022-11-12	rnd 6	type Blitz	result 1	date 2022-11-12	rnd 6	type Blitz	result 1
		Opponent Moses, J (Jay-Leigh)				Opponent Moses, J (Jay-Leigh)

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	Riddles ,C (Ciara)	5	1	-255	4	1	-212.5	1	0	-425	0	0	0
1	Riddles ,C (Ciara)	5	1412.8	1157.8	4	1486.2	1200.3	1	1200	987.8	0	0	0
2	Laws ,E (Erin)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Laws ,E (Erin)	3	1135.5	1418.8	3	1139.5	1418.8	0	0	0	0	0	0
3	Saayman ,B (Barendina)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
3	Saayman ,B (Barendina)	3	1155.3	1438.6	2	1158.3	1367.8	1	1200	1580.3	0	0	0
4	Da Silva ,D (Darren)	3	0	-425	0	0	0	2	0	-425	1	0	-425
4	Da Silva ,D (Darren)	3	1315.9	890.9	0	0	0	2	1127.2	890.9	1	1200	890.9
5	Moses ,J (Jay-Leigh)	3	1.5	0	0	0	0	2	0.5	-212.5	1	1	425
5	Moses ,J (Jay-Leigh)	3	1346.4	1346.4	0	0	0	2	1220	1133.9	1	1200	1771.4
6	Du Preez ,R (Rumecha)	2	1	0	2	1	0	0	0	0	0	0	0
6	Du Preez ,R (Rumecha)	2	1169.9	1169.9	2	1166.8	1169.9	0	0	0	0	0	0
7	Petersen ,R (Raynique)	2	1	0	2	1	0	0	0	0	0	0	0
7	Petersen ,R (Raynique)	2	1202.8	1202.8	2	1203.4	1202.8	0	0	0	0	0	0
8	Sauls ,G (Glinnis-Lynn)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Sauls ,G (Glinnis-Lynn)	2	1266.9	841.9	2	1289.2	841.9	0	0	0	0	0	0
9	Miller ,Z (Zionique)	2	2	425	2	2	425	0	0	0	0	0	0
9	Miller ,Z (Zionique)	2	1163.9	1588.9	2	1158	1588.9	0	0	0	0	0	0
10	Farland ,A (Aquila)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Farland ,A (Aquila)	2	1137.2	1349.7	2	1167.6	1349.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Johnson, A (Amber)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms