Chess South Africa Ratings Database

PLAYER PAGE

Personal

Etsala-Kourou, B (Billy)

Chess SA id

1110193135

FIDE id

Date of birth

2011-04-14 (U16)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-11

Personal details last changed

1900-01-01

Junior GPX Games

40.5

Junior GPX Points

1382.5

Item	Main	Standard	Rapid	Blitz
Rating	1490.2	1497.2	1270	1200
Raw rating	1490.2	1497.2	1270	1200
Weighted rating	1450.1	1453.7	1239.9	1200
Weighted performance	1400.5	1410.3	0	0
Floor	997.1	1008.4	770	700
K-factor	32	32	36	36
Min/Max rating change allowed	109.7	108.6	150.1	165.8
Highest rating	1559.7 2024-03-01	1561 2024-03-01	1270 2025-04-01	1200 2024-02-01
Highest raw rating	1497.1 2025-05-05	1508.4 2025-05-05	1270 2025-04-01	1200 2024-02-01
Highest weighted rating	1497.1 2024-10-01	1508.4 2024-10-01	1227.6 2025-08-01	1200 2024-02-01
Highest weighted performance	1559.7 2024-03-01	1561 2024-03-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1490.2	1497.2	1270	1200
Analysis
Rating	1490.2	1497.2	1270	1200
Raw rating	1490.2	1497.2	1270	1200
Weighted rating	1450.1	1453.7	1239.9
Weighted performance	1400.5	1410.3	0
K-factor	32	32	36	36
Floor	997.1	1008.4	770	700
Max/Min rating change allowed	109.7	108.6	150.1	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	1490.2	1497.2	1270	1200
New weighted rating	1457	1460.9	1243.5	1200
New weighted performance	1391.9	1401.7	0	0
Temp new rating	1490.2	1497.2	1270	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1490.2	1497.2	1270	1200
New K-factor	32	32	36	36
New floor	997.1	1008.4	770	700

Item	Main	Standard	Rapid
	0	0	0
	47	35	12
	31	31	0
	0	0	0
	0	0	0
	0	0	0
History	78	66	12

Games since
	Main 78	Standard 66		Rapid 12		Blitz 0
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1334		413		98
Male	1129		344		82
U16	169		51		13
U16 Male	132		40		10
Standard
	RSA		Province		Region
Overall	1230		342		79
Male	1048		281		64
U16	159		49		12
U16 Male	129		41		10
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	47	32.5	69.15	162.8	1347.4	1510.1
Standard	35	25.5	72.86	194.3	1344	1538.2
Rapid	12	7	58.33	70.8	1357.3	1428.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	78	52.5	67.31	147.1	1338.8	1486
Standard	66	45.5	68.94	161	1335.5	1496.5
Rapid	12	7	58.33	70.8	1357.3	1428.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1490.2	1497.2	1270	1200
2025-09-30	1497.1	1508.4	1270	1200
2025-09-01	1497.1	1508.4	1270	1200
2025-08-01	1497.1	1508.4	1270	1200
2025-07-01	1497.1	1508.4	1270	1200
2025-06-01	1497.1	1508.4	1270	1200
2025-05-01	1497.1	1508.4	1270	1200
2025-04-01	1476.1	1481	1270	1200
2025-03-01	1448.9	1448.9	1230.7	1200
2025-02-01	1407.6	1398	1200	1200
2025-01-01	1407.6	1398	1200	1200
2024-12-01	1407.6	1398	1200	1200
2024-11-01	1407.6	1398	1200	1200
2024-10-01	1407.6	1398	1200	1200
2024-09-01	1407.6	1398	1200	1200
2024-08-01	1407.6	1398	1200	1200
2024-07-01	1407.6	1398	1200	1200
2024-09-01	1407.6	1398	1200	1200
2024-05-01	1394.2	1418.8	1200	1200
2024-04-01	1356.6	1386.8	1200	1200
2024-03-01	1287.6	1308	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	Eden League 2025 (First Division)	2025-10-11	2025-10-11	Standard	Eden (WEG)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
4	Oudtshoorn Rapid 2025 (Open)	2025-03-28	2025-03-28	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
5	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
6	Oudussa Trials 2025 (U15)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
7	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
8	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden League 2025 (First Division)	2025-10-11	2025-10-11	Standard	Eden (WEG)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U16)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
4	Oudtshoorn Rapid 2025 (Open)	2025-03-28	2025-03-28	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
5	Eden Schools Chess Trials 1 2025 (U15 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
6	Oudussa Trials 2025 (U15)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
7	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
8	Oudussa Trials 2 2025 (U5 Boys+Girls)	2025-02-01	2025-02-01	Standard	Eden (WEG)	5	5	5	Yes	Analysis
9	Western Cape PS Individuals Championship 2024 (U13 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
10	Eden Chess Trials 2 2024 (U14)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	6.5	Yes	Analysis
11	Eden School Chess Trials 1 2024 (U13 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
12	OUDUSSA Trials 2 2024 (U13 Boys+Girls)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	4	Yes	Analysis
13	OUDUSSA Trials 1 2024 (U13 Boys+Girls)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	8	Tournament Oudussa Trials 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Botha, V (Vuyani)				Opponent Louw, A (Alfonzo)
2	6	Tournament Oudussa Trials 2 2025				Tournament Eden Rapid 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-23	rnd 1	type Rapid	result 1
		Opponent Augustyn, J (Johan)				Opponent Josephs, R (Ryan)
3	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Jaer, M (Matthew)				Opponent Oberholzer, F (Fc)

#	Games	Start				End
1	13	Tournament Oudussa Trials 2 2025				Tournament Eden Schools Chess Trials 1 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Augustyn, J (Johan)				Opponent Louw, A (Alfonzo)
2	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Jaer, M (Matthew)				Opponent Oberholzer, F (Fc)
3	6	Tournament OUDUSSA Trials 1 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-03	rnd 2	type Standard	result 1	date 2024-02-17	rnd 2	type Standard	result 1
		Opponent Stegmann, A (Andre)				Opponent Damons, T (Theo)

#	Games	Start				End
1	2	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 1	type Rapid	result 1	date 2025-03-28	rnd 2	type Rapid	result 1
		Opponent Langhtrey, B (Brentiano)				Opponent Kamfer, M (Miqeul)
2	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 6	type Rapid	result 1
		Opponent Matheus, X (Xavier)				Opponent Matheus, X (Xavier)
3	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 4	type Rapid	result 1	date 2025-03-28	rnd 4	type Rapid	result 1
		Opponent Stanley, F (Flip)				Opponent Stanley, F (Flip)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Oudussa Trials 2 2025				Tournament Eden Rapid 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-23	rnd 1	type Rapid	result 1
		Opponent Augustyn, J (Johan)				Opponent Josephs, R (Ryan)
2	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Jaer, M (Matthew)				Opponent Oberholzer, F (Fc)
3	5	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Opperman, D (Dante)				Opponent Claassen, M (Mervin)

#	Games	Start				End
1	8	Tournament Oudussa Trials 2 2025				Tournament Oudussa Trials 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Augustyn, J (Johan)				Opponent Arries, J (Jizelle)
2	6	Tournament OUDUSSA Trials 2 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-02-17	rnd 4	type Standard	result 1	date 2024-03-09	rnd 4	type Standard	result 1
		Opponent Jaer, M (Matthew)				Opponent Oberholzer, F (Fc)
3	5	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Opperman, D (Dante)				Opponent Claassen, M (Mervin)

#	Games	Start				End
1	2	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 1	type Rapid	result 1	date 2025-03-28	rnd 2	type Rapid	result 1
		Opponent Langhtrey, B (Brentiano)				Opponent Kamfer, M (Miqeul)
2	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 6	type Rapid	result 1	date 2025-03-28	rnd 6	type Rapid	result 1
		Opponent Matheus, X (Xavier)				Opponent Matheus, X (Xavier)
3	1	Tournament Oudtshoorn Rapid 2025				Tournament Oudtshoorn Rapid 2025
		date 2025-03-28	rnd 4	type Rapid	result 1	date 2025-03-28	rnd 4	type Rapid	result 1
		Opponent Stanley, F (Flip)				Opponent Stanley, F (Flip)

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	Julies ,M (Miche)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Julies ,M (Miche)	3	1360.7	1502.4	3	1369.5	1502.4	0	0	0	0	0	0
2	Coleman ,A (Anthony)	2	1	0	2	1	0	0	0	0	0	0	0
2	Coleman ,A (Anthony)	2	1589.7	1589.7	2	1573.8	1589.7	0	0	0	0	0	0
3	Claassen ,M (Mervin)	2	1	0	2	1	0	0	0	0	0	0	0
3	Claassen ,M (Mervin)	2	1554.4	1554.4	2	1584.7	1554.4	0	0	0	0	0	0
4	Arries ,J (Jizelle)	2	2	425	2	2	425	0	0	0	0	0	0
4	Arries ,J (Jizelle)	2	1248.7	1673.7	2	1235.5	1673.7	0	0	0	0	0	0
5	Pietersen ,E (Ethan)	2	2	425	2	2	425	0	0	0	0	0	0
5	Pietersen ,E (Ethan)	2	1202.4	1627.4	2	1194.6	1627.4	0	0	0	0	0	0
6	Muller ,M (Mgishan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Muller ,M (Mgishan)	1	1212.6	1212.6	1	1215.2	1212.6	0	0	0	0	0	0
7	Agulhus ,T (Trenesh)	1	1	425	1	1	425	0	0	0	0	0	0
7	Agulhus ,T (Trenesh)	1	1207.6	1632.6	1	1202.8	1632.6	0	0	0	0	0	0
8	Saku ,L (Lisolethu)	1	1	425	1	1	425	0	0	0	0	0	0
8	Saku ,L (Lisolethu)	1	1566	1991	1	1563.4	1991	0	0	0	0	0	0
9	Suka ,S (Sithembisosethu)	1	1	425	1	1	425	0	0	0	0	0	0
9	Suka ,S (Sithembisosethu)	1	1452.7	1877.7	1	1453.5	1877.7	0	0	0	0	0	0
10	Jacobs ,E (Eugeniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Jacobs ,E (Eugeniel)	1	1552.5	1127.5	1	1565.8	1127.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Etsala-Kourou, B (Billy)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms