Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rock, A (Albert)

Chess SA id

1150154665

FIDE id

Date of birth

2015-06-10 (U12)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

24.7

Junior GPX Points

1070.2

Item	Main	Standard	Rapid	Blitz
Rating	1235.5	1174.9	1248	1200
Raw rating	1235.5	1174.9	1248	1200
Weighted rating	1204.3	1174.8	1191.6	1200
Weighted performance	1150.2	1010.9	1193	0
Floor	735.5	736	750.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.6	171.9	154.9	165.8
Highest rating	1250.4 2024-07-01	1273.9 2024-07-01	1250.7 2025-03-01	1200 2018-10-01
Highest raw rating	1235.5 2025-09-30	1236 2024-08-01	1250.7 2025-03-01	1200 2024-02-01
Highest weighted rating	1235 2018-10-01	1236 2018-10-01	1250.7 2018-10-01	1200 2018-10-01
Highest weighted performance	1250.4 2025-03-01	1273.9 2024-07-01	1232.7 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1235.5	1174.9	1248	1200
Analysis
Rating	1235.5	1174.9	1248	1200
Raw rating	1235.5	1174.9	1248	1200
Weighted rating	1204.3	1174.8	1191.6
Weighted performance	1150.2	1010.9	1193
K-factor	36	36	36	36
Floor	735.5	736	750.7	700
Max/Min rating change allowed	157.6	171.9	154.9	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	1235.5	1174.9	1248	1200
New weighted rating	1208.6	1174.9	1198.7	1200
New weighted performance	1143.2	1004.2	1185.7	0
Temp new rating	1235.5	1174.9	1248	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1235.5	1174.9	1248	1200
New K-factor	36	36	36	36
New floor	735.5	736	750.7	700

Item	Main	Standard	Rapid
	0	0	0
	44	8	36
	52	29	23
	16	5	11
	0	0	0
	0	0	0
History	112	42	70

Games since
	Main 96	Standard 37		Rapid 59		Blitz 0
Gender	Male
Age group	U12
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3844		1274		108
Male	2912		915		71
U12	613		210		23
U12 Male	424		136		13
Standard
	RSA		Province		Region
Overall	4241		1208		80
Male	3138		816		50
U12	696		198		15
U12 Male	477		117		10
Rapid
	RSA		Province		Region
Overall	1388		691		93
Male	1098		533		60
U12	261		143		18
U12 Male	193		98		11
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	44	21.5	48.86	-9.7	1273.7	1264
Standard	8	3	37.5	-106.2	1301.6	1195.4
Rapid	36	18.5	51.39	11.8	1267.4	1279.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	112	48	42.86	-60.7	1244.7	1184
Standard	42	17.5	41.67	-70.8	1256.2	1185.4
Rapid	70	30.5	43.57	-54.6	1237.8	1183.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1235.5	1174.9	1248	1200
2025-09-30	1235.5	1174.9	1248	1200
2025-09-01	1228	1174.9	1236.5	1200
2025-08-01	1220.9	1174.3	1234.9	1200
2025-07-01	1220.9	1174.1	1234.9	1200
2025-06-01	1220.9	1174.1	1234.9	1200
2025-05-01	1226.3	1174.1	1250.7	1200
2025-04-01	1226.3	1174.1	1250.7	1200
2025-03-01	1235	1174.3	1250.7	1200
2025-02-01	1177	1173.8	1124	1200
2025-01-01	1177	1164	1124	1200
2024-12-01	1177	1164	1124	1200
2024-11-01	1177	1164	1124	1200
2024-10-01	1177	1164	1124	1200
2024-09-01	1222.4	1236	1107.1	1200
2024-08-01	1222.4	1236	1107.1	1200
2024-07-01	1126.3	1144.9	1107.1	1200
2024-09-01	1126.3	1144.9	1107.1	1200
2024-05-01	1134.1	1175.1	1107.1	1200
2024-04-01	1132.4	1175.1	1092.7	1200
2024-03-01	1117	1164.7	1091.6	1200
2024-02-01	1117	1164.7	1091.6	1200
2024-01-01	1123.4	1164.7	1099.5	1200
2023-12-01	1123.4	1164.7	1099.5	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	Kingsway Chess Open 2025 (U10)	2025-09-20	2025-09-20	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
2	Kleinmond Chess Club Open 2025 (U10)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
3	Overberg Top Schools 2025 (U11)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	3	3	1	Yes	Analysis
4	Brave Knights Rapid 2025 (U11)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
5	Overberg Schools - PS Closed 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
6	Overberg Schools - PS Trials (Region 1) 2025 (U11 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
7	Curro Hermanus Summer Open 2025 (U11)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
8	Overberg Schools & Federation Open 2025 (U11)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kingsway Chess Open 2025 (U10)	2025-09-20	2025-09-20	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
2	Kleinmond Chess Club Open 2025 (U10)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
3	Overberg Top Schools 2025 (U11)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	3	3	1	Yes	Analysis
4	Brave Knights Rapid 2025 (U11)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
5	Overberg Schools - PS Closed 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
6	Overberg Schools - PS Trials (Region 1) 2025 (U11 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
7	Curro Hermanus Summer Open 2025 (U11)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	3.5	Yes	Analysis
8	Overberg Schools & Federation Open 2025 (U11)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
9	Overberg GP Invitational Day 2 2024 (C)	2024-09-27	2024-09-27	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
10	Overberg GP Invitational Day 1 2024 (C)	2024-09-26	2024-09-26	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
11	Kleinmond Chess Club Open 2024 (U10)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
12	Western Cape Top Schools Championship 2024 (U9 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	2	Yes	Analysis
13	Overberg Schools - Top Schools 2024 (U7+U9 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
14	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	1.5	Yes	Analysis
15	Hermanus Chess Club Open 2024 (Development)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	7	3	Yes	Analysis
16	Overberg Schools - PS Closed 2024 (U9 Boys)	2024-03-16	2024-03-16	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
17	Overberg Schools - PS Trials Region 3 2024 (U9 Boys)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
18	Overberg Open Rapid 2024 (U7+U9)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	1.5	Yes	Analysis
19	Kingsway Open 2023 (U8)	2023-10-28	2023-10-28	Rapid	Overberg (WOS)	5	5	1	Yes	Analysis
20	Overberg Top Schools 2023 (U7+U9)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	1.5	Yes	Analysis
21	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	1.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Fourie, J (Jean Philippe)				Opponent Marais, J (Janli)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 6	type Rapid	result 1
		Opponent Indhull, N (Nikita)				Opponent Henning, I (Ivan)
3	3	Tournament Hermanus Chess Club Open 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-04-20	rnd 7	type Rapid	result 1	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Qogi, D (Dean)				Opponent Du Toit, R (Ruvay)

#	Games	Start				End
1	6	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Fourie, J (Jean Philippe)				Opponent Marais, J (Janli)
2	4	Tournament Overberg Top Schools 2023				Tournament Overberg Schools - PS Closed 2024
		date 2023-08-05	rnd 4	type Standard	result 0.5	date 2024-03-16	rnd 2	type Standard	result 1
		Opponent Du Toit, W (Wilmari)				Opponent Groenewald, P (Patrick)
3	2	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 1	type Standard	result 0.5	date 2024-05-04	rnd 2	type Standard	result 1
		Opponent Louw, B (Burger)				Opponent Du Toit, R (Ruvay)

#	Games	Start				End
1	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 6	type Rapid	result 1
		Opponent Indhull, N (Nikita)				Opponent Henning, I (Ivan)
2	3	Tournament Kleinmond Chess Club Open 2024				Tournament Overberg Schools & Federation Open 2025
		date 2024-09-07	rnd 5	type Rapid	result 1	date 2025-02-01	rnd 1	type Rapid	result 1
		Opponent Tembe, A (Amathe)				Opponent Barnard, A (Adam)
3	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Madikane, A (Agcobile)				Opponent Collins, M (Marius)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Fourie, J (Jean Philippe)				Opponent Marais, J (Janli)
2	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 6	type Rapid	result 1
		Opponent Indhull, N (Nikita)				Opponent Henning, I (Ivan)
3	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Madikane, A (Agcobile)				Opponent Collins, M (Marius)

#	Games	Start				End
1	6	Tournament Overberg Schools - Top Schools 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-07-27	rnd 1	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 1
		Opponent Fourie, J (Jean Philippe)				Opponent Marais, J (Janli)
2	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Barnard, A (Adam)				Opponent Barnard, A (Adam)
3	1	Tournament Overberg Schools - PS Closed 2025				Tournament Overberg Schools - PS Closed 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Ngxovu, A (Akhanyile)				Opponent Ngxovu, A (Akhanyile)

#	Games	Start				End
1	3	Tournament Overberg Schools & Federation Open 2025				Tournament Overberg Schools & Federation Open 2025
		date 2025-02-01	rnd 4	type Rapid	result 1	date 2025-02-01	rnd 6	type Rapid	result 1
		Opponent Indhull, N (Nikita)				Opponent Henning, I (Ivan)
2	3	Tournament Kleinmond Chess Club Open 2024				Tournament Overberg Schools & Federation Open 2025
		date 2024-09-07	rnd 5	type Rapid	result 1	date 2025-02-01	rnd 1	type Rapid	result 1
		Opponent Tembe, A (Amathe)				Opponent Barnard, A (Adam)
3	2	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Madikane, A (Agcobile)				Opponent Collins, M (Marius)

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	Coetzer ,H (Hanro)	4	0	-425	2	0	-425	2	0	-425	0	0	0
1	Coetzer ,H (Hanro)	4	1399.9	974.9	2	1344.2	974.9	2	1371	974.9	0	0	0
2	Du Preez ,J (Janco)	4	0.5	-318.8	1	0	-425	3	0.5	-283.3	0	0	0
2	Du Preez ,J (Janco)	4	1244.2	925.4	1	1250.8	819.2	3	1215.2	960.9	0	0	0
3	Buhr ,H (Heinrich)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Buhr ,H (Heinrich)	3	1370.6	945.6	2	1237.2	945.6	1	1312.3	945.6	0	0	0
4	Lingenfelder ,S (Stephanus)	3	0	-425	2	0	-425	1	0	-425	0	0	0
4	Lingenfelder ,S (Stephanus)	3	1289.4	864.4	2	1285.1	864.4	1	1244.8	864.4	0	0	0
5	Rasekgololo ,B (Bandile)	2	2	425	2	2	425	0	0	0	0	0	0
5	Rasekgololo ,B (Bandile)	2	1180.4	1605.4	2	1178.4	1605.4	0	0	0	0	0	0
6	Marais ,J (Janli)	2	2	425	2	2	425	0	0	0	0	0	0
6	Marais ,J (Janli)	2	1102.8	1527.8	2	1090.4	1527.8	0	0	0	0	0	0
7	Otto ,X (Xavier)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
7	Otto ,X (Xavier)	2	1173.7	961.2	1	1202	1173.7	1	1191.6	748.7	0	0	0
8	Fourie ,D (David)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Fourie ,D (David)	2	1276.8	851.8	1	1328.7	851.8	1	1200	851.8	0	0	0
9	Du Preez ,A (Anneke)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Du Preez ,A (Anneke)	2	1441.8	1016.8	1	1467.5	1016.8	1	1381.7	1016.8	0	0	0
10	Barnard ,A (Adam)	2	2	425	1	1	425	1	1	425	0	0	0
10	Barnard ,A (Adam)	2	1268.9	1693.9	1	1266.6	1693.9	1	1188.8	1693.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Rock, A (Albert)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms