Chess South Africa Ratings Database

PLAYER PAGE

Personal

Gouveia Goncalves, I (Isabella)

Chess SA id

2080315771

FIDE id

Date of birth

2008-12-16 (U18)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

23.5

Junior GPX Points

1054.3

Item	Main	Standard	Rapid	Blitz
Rating	1198.2	1197.2	1199.8	1200
Raw rating	1171.6	1157.2	1199.8	1200
Weighted rating	1198.2	1197.2	1199.8	1200
Weighted performance	1057.9	0	0	0
Floor	711.1	710.9	699.9	700
K-factor	36	36	40	36
Min/Max rating change allowed	172.7	176.2	165.9	165.8
Highest rating	1211.1 2025-09-01	1210.9 2025-09-01	1199.9 2025-02-23	1200 2025-03-01
Highest raw rating	1211.1 2025-09-01	1210.9 2025-09-01	1199.9 2025-02-23	1200 2025-03-01
Highest weighted rating	1200.8 2025-04-01	1202.2 2025-04-01	1199.9 2025-02-23	1200 2025-03-01
Highest weighted performance	1057.9 2025-09-30	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.2	-3.3	0	0
New rating	1196	1193.9	1199.8	1200
Analysis
Rating	1198.2	1197.2	1199.8	1200
Raw rating	1171.6	1157.2	1199.8	1200
Weighted rating	1198.2	1197.2	1199.8
Weighted performance	1057.9	0	0
K-factor	36	36	40	36
Floor	711.1	710.9	699.9	700
Max/Min rating change allowed	172.7	176.2	165.9	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	1171.6	1157.2	1199.8	1200
New weighted rating	1196	1193.9	1199.8	1200
New weighted performance	1057.6	0	0	0
Temp new rating	1196	1193.9	1199.8	1200
Temp new rating +/-	-2.2	-3.3	0	0
Final new rating +/-	-2.2	-3.3	0	0
New rating	1196	1193.9	1199.8	1200
New K-factor	36	36	40	36
New floor	711.1	710.9	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	26	21	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	26	21	5

Games since
	Main 26	Standard 21		Rapid 5		Blitz 0
Gender	Female
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	26	9.5	36.54	-114.4	1220.6	1106.2
Standard	21	7.5	35.71	-121.4	1226.5	1105.1
Rapid	5	2	40	-85	1195.9	1110.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	26	9.5	36.54	-114.4	1220.6	1106.2
Standard	21	7.5	35.71	-121.4	1226.5	1105.1
Rapid	5	2	40	-85	1195.9	1110.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1171.6	1157.2	1199.8	1200
2025-09-01	1211.1	1210.9	1199.8	1200
2025-08-01	1199.6	1199.8	1199.8	1200
2025-07-01	1199.6	1199.7	1199.8	1200
2025-06-01	1199.4	1199.5	1199.8	1200
2025-05-01	1196.3	1195.6	1199.8	1200
2025-04-01	1200.8	1202.2	1199.7	1200
2025-03-01	1198.9	1200	1197.8	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2023-11-01	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	Western Cape Schools - Top Schools 2025 (U17)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U17 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	1	Yes	Analysis
4	Overberg Schools - HS Closed 2025 (U17 Girls)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
5	Overberg Schools - HS Trials 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U17)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Overberg Top Schools 2025 (U15-U19)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U17 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	1	Yes	Analysis
4	Overberg Schools - HS Closed 2025 (U17 Girls)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
5	Overberg Schools - HS Trials 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Lenderts, B (Brentino)				Opponent Van Der Merwe, L (Luan)
2	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Dabula, L (Liyabona)				Opponent Dzadza, O (Olithemba)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Pedersen, C (Cameron)				Opponent Pedersen, C (Cameron)

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Lenderts, B (Brentino)				Opponent Van Der Merwe, L (Luan)
2	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Dabula, L (Liyabona)				Opponent Dzadza, O (Olithemba)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Pedersen, C (Cameron)				Opponent Pedersen, C (Cameron)

#	Games	Start				End
1	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Van Rooyen, J (Janel)
2	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Mushohwe, L (Lee Ann)				Opponent Mushohwe, L (Lee Ann)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Lenderts, B (Brentino)				Opponent Van Der Merwe, L (Luan)
2	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Dabula, L (Liyabona)				Opponent Dzadza, O (Olithemba)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Pedersen, C (Cameron)				Opponent Pedersen, C (Cameron)

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Lenderts, B (Brentino)				Opponent Van Der Merwe, L (Luan)
2	2	Tournament Overberg Schools - HS Closed 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-03-22	rnd 5	type Standard	result 1
		Opponent Dabula, L (Liyabona)				Opponent Dzadza, O (Olithemba)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 4	type Standard	result 1	date 2025-09-06	rnd 4	type Standard	result 1
		Opponent Pedersen, C (Cameron)				Opponent Pedersen, C (Cameron)

#	Games	Start				End
1	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Van Rooyen, J (Janel)
2	1	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 3	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Mushohwe, L (Lee Ann)				Opponent Mushohwe, L (Lee Ann)

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 Rooyen ,J (Janel)	3	3	425	2	2	425	1	1	425	0	0	0
1	Van Rooyen ,J (Janel)	3	1073	1498	2	1122.5	1498	1	1076.9	1498	0	0	0
2	Brink ,S (Samantha)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Brink ,S (Samantha)	2	1345.1	920.1	1	1352.1	920.1	1	1194.7	920.1	0	0	0
3	Truter ,M (Meike)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Truter ,M (Meike)	2	1254.8	829.8	1	1258	829.8	1	1246.8	829.8	0	0	0
4	Jacobs ,S (Sunette)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jacobs ,S (Sunette)	1	1230.8	805.8	1	1206.5	805.8	0	0	0	0	0	0
5	Van Der Merwe ,L (Luan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Der Merwe ,L (Luan)	1	1174.6	1599.6	1	1141.6	1599.6	0	0	0	0	0	0
6	Saaiman ,K (Kayle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Saaiman ,K (Kayle)	1	1217.9	792.9	1	1214.3	792.9	0	0	0	0	0	0
7	Marais ,Z (Zoe)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Marais ,Z (Zoe)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Rhenier ,R (Roshandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Rhenier ,R (Roshandre)	1	1272.7	847.7	1	1264.8	847.7	0	0	0	0	0	0
9	Gabriel ,J (Jonathan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Gabriel ,J (Jonathan)	1	1372.1	947.1	1	1340.5	947.1	0	0	0	0	0	0
10	De Bruin ,E (Elrise)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	De Bruin ,E (Elrise)	1	1308.7	883.7	1	1305.4	883.7	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

Gouveia Goncalves, I (Isabella)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms