Chess South Africa Ratings Database

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Personal

Keyster, A (Alonzo)

Chess SA id

1090138324

FIDE id

Date of birth

2009-07-13 (U18)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-10-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1220	1212.6	1222.4	1200
Raw rating	1220	1212.6	1222.4	1200
Weighted rating	1220	1212.6	1222.4	1200
Weighted performance	0	0	0	0
Floor	720	718.4	722.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.2	162.9	160.6	165.8
Highest rating	1350 2022-02-01	1350 2022-02-01	1222.4 2024-02-01	1200 2018-10-01
Highest raw rating	1220 2024-02-01	1218.4 2022-03-01	1222.4 2024-02-01	1200 2024-02-01
Highest weighted rating	1220 2024-10-01	1218.4 2023-12-01	1222.4 2024-10-01	1200 2018-10-01
Highest weighted performance	1350 2022-02-01	1350 2022-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1220	1212.6	1222.4	1200
Analysis
Rating	1220	1212.6	1222.4	1200
Raw rating	1220	1212.6	1222.4	1200
Weighted rating	1220	1212.6	1222.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	720	718.4	722.4	700
Max/Min rating change allowed	161.2	162.9	160.6	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	1220	1212.6	1222.4	1200
New weighted rating	1220	1212.6	1222.4	1200
New weighted performance	0	0	0	0
Temp new rating	1220	1212.6	1222.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1220	1212.6	1222.4	1200
New K-factor	36	36	36	36
New floor	720	718.4	722.4	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	10	5	5
	0	0	0
History	10	5	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	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	10	6	60	85	1177	1262
Standard	5	3	60	85	1188.2	1273.2
Rapid	5	3	60	85	1165.7	1250.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1220	1212.6	1222.4	1200
2025-09-01	1220	1212.6	1222.4	1200
2025-08-01	1220	1212.6	1222.4	1200
2025-07-01	1220	1212.6	1222.4	1200
2025-06-01	1220	1212.6	1222.4	1200
2025-05-01	1220	1212.6	1222.4	1200
2025-04-01	1220	1212.6	1222.4	1200
2025-03-01	1220	1212.6	1222.4	1200
2025-02-01	1220	1212.6	1222.4	1200
2025-01-01	1220	1212.6	1222.4	1200
2024-12-01	1220	1212.6	1222.4	1200
2024-11-01	1220	1212.6	1222.4	1200
2024-10-01	1220	1212.6	1222.4	1200
2024-09-01	1220	1212.6	1222.4	1200
2024-08-01	1220	1212.6	1222.4	1200
2024-07-01	1220	1212.6	1222.4	1200
2024-06-01	1220	1212.6	1222.4	1200
2024-08-01	1220	1212.6	1222.4	1200
2024-04-01	1220	1212.6	1222.4	1200
2024-03-01	1220	1212.6	1222.4	1200
2024-02-01	1220	1212.6	1222.4	1200
2024-01-01	1220	1212.6	1222.4	1200
2023-12-01	1220	1212.6	1222.4	1200
2023-11-01	1220	1212.6	1222.4	1200

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	West Coast Schools Chess Grand Challenge 2022 (PS Development)	2022-10-29	2022-10-29	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
2	Pedro Booyse Top Schools 2022 (U13 Open)	2022-07-23	2022-07-23	Standard	West Coast (WCU)	5	2	1	Yes	Analysis
3	Bo-Weskus Top Skole 2022 (O13)	2022-06-11	2022-06-11	Rapid	West Coast (WCU)	5	1	0	Yes	Analysis
4	West Coast Schools Prestige 2022 (U13 Boys)	2022-02-19	2022-02-19	Standard	West Coast (WCU)	6	3	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 5	type Rapid	result 1
		Opponent Maarman, B (Blayden)				Opponent Skippers, G (Gerano)
2	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 4	type Standard	result 1	date 2022-02-19	rnd 5	type Standard	result 1
		Opponent Makalela, B (Bijorgen)				Opponent Slingers, M (Morne)
3	1	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 2	type Rapid	result 1	date 2022-10-29	rnd 2	type Rapid	result 1
		Opponent Smith, C (Cody)				Opponent Smith, C (Cody)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 4	type Standard	result 1	date 2022-02-19	rnd 5	type Standard	result 1
		Opponent Makalela, B (Bijorgen)				Opponent Slingers, M (Morne)
2	1	Tournament Pedro Booyse Top Schools 2022				Tournament Pedro Booyse Top Schools 2022
		date 2022-07-23	rnd 1	type Standard	result 1	date 2022-07-23	rnd 1	type Standard	result 1
		Opponent Conradie, Q (Quewin)				Opponent Conradie, Q (Quewin)

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 5	type Rapid	result 1
		Opponent Maarman, B (Blayden)				Opponent Skippers, G (Gerano)
2	1	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 2	type Rapid	result 1	date 2022-10-29	rnd 2	type Rapid	result 1
		Opponent Smith, C (Cody)				Opponent Smith, C (Cody)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 5	type Rapid	result 1
		Opponent Maarman, B (Blayden)				Opponent Skippers, G (Gerano)
2	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 4	type Standard	result 1	date 2022-02-19	rnd 5	type Standard	result 1
		Opponent Makalela, B (Bijorgen)				Opponent Slingers, M (Morne)
3	1	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 2	type Rapid	result 1	date 2022-10-29	rnd 2	type Rapid	result 1
		Opponent Smith, C (Cody)				Opponent Smith, C (Cody)

#	Games	Start				End
1	2	Tournament West Coast Schools Prestige 2022				Tournament West Coast Schools Prestige 2022
		date 2022-02-19	rnd 4	type Standard	result 1	date 2022-02-19	rnd 5	type Standard	result 1
		Opponent Makalela, B (Bijorgen)				Opponent Slingers, M (Morne)
2	1	Tournament Pedro Booyse Top Schools 2022				Tournament Pedro Booyse Top Schools 2022
		date 2022-07-23	rnd 1	type Standard	result 1	date 2022-07-23	rnd 1	type Standard	result 1
		Opponent Conradie, Q (Quewin)				Opponent Conradie, Q (Quewin)

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 4	type Rapid	result 1	date 2022-10-29	rnd 5	type Rapid	result 1
		Opponent Maarman, B (Blayden)				Opponent Skippers, G (Gerano)
2	1	Tournament West Coast Schools Chess Grand Challenge 2022				Tournament West Coast Schools Chess Grand Challenge 2022
		date 2022-10-29	rnd 2	type Rapid	result 1	date 2022-10-29	rnd 2	type Rapid	result 1
		Opponent Smith, C (Cody)				Opponent Smith, C (Cody)

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	Slingers ,M (Morne)	1	1	425	1	1	425	0	0	0	0	0	0
1	Slingers ,M (Morne)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Sauls ,J (Jada)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Sauls ,J (Jada)	1	1216.3	791.3	1	1135.2	791.3	0	0	0	0	0	0
3	Sawayer ,L (Luke)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Sawayer ,L (Luke)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Conradie ,Q (Quewin)	1	1	425	1	1	425	0	0	0	0	0	0
4	Conradie ,Q (Quewin)	1	1124.9	1549.9	1	1163.2	1549.9	0	0	0	0	0	0
5	Makalela ,B (Bijorgen)	1	1	425	1	1	425	0	0	0	0	0	0
5	Makalela ,B (Bijorgen)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Skippers ,G (Gerano)	1	1	425	0	0	0	1	1	425	0	0	0
6	Skippers ,G (Gerano)	1	1129.3	1554.3	0	0	0	1	1154.8	1554.3	0	0	0
7	Smith ,C (Cody)	1	1	425	0	0	0	1	1	425	0	0	0
7	Smith ,C (Cody)	1	1181	1606	0	0	0	1	1173.2	1606	0	0	0
8	Smith ,T (Tyron)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Smith ,T (Tyron)	1	1217.4	792.4	0	0	0	1	1239.2	792.4	0	0	0
9	Lawan ,A (Alcadya)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Lawan ,A (Alcadya)	1	1177.5	752.5	0	0	0	1	1200	752.5	0	0	0
10	Maarman ,B (Blayden)	1	1	425	0	0	0	1	1	425	0	0	0
10	Maarman ,B (Blayden)	1	1123.6	1548.6	0	0	0	1	1172.8	1548.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Keyster, A (Alonzo)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms