Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pereira, I (Isabella)

Chess SA id

2120140245

FIDE id

Date of birth

2012-07-19 (U14)

Gender

Female

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-05-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1231	1231.9	1200	1200
Raw rating	1231	1231.9	1200	1200
Weighted rating	1226.5	1226.1	1200	1200
Weighted performance	846.2	844	0	0
Floor	768.6	779.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.6	158.4	165.8	165.8
Highest rating	1284.5 2023-07-01	1284.6 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1268.6 2024-03-01	1279.3 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1268.6 2024-05-01	1279.3 2024-05-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1284.5 2023-07-01	1284.6 2023-07-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1231	1231.9	1200	1200
Analysis
Rating	1231	1231.9	1200	1200
Raw rating	1231	1231.9	1200	1200
Weighted rating	1226.5	1226.1	1200
Weighted performance	846.2	844	0
K-factor	36	36	36	36
Floor	768.6	779.3	700	700
Max/Min rating change allowed	158.6	158.4	165.8	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	1231	1231.9	1200	1200
New weighted rating	1226.4	1226	1200	1200
New weighted performance	839.4	837.2	0	0
Temp new rating	1231	1231.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1231	1231.9	1200	1200
New K-factor	36	36	36	36
New floor	768.6	779.3	700	700

Item	Main	Standard
	0	0
	0	0
	5	5
	15	15
	5	5
	0	0
History	25	25

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	25	13	52	17	1209.1	1226.1
Standard	25	13	52	17	1209.1	1226.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1231	1231.9	1200	1200
2025-09-30	1231	1231.9	1200	1200
2025-09-01	1231	1231.9	1200	1200
2025-08-01	1231	1231.9	1200	1200
2025-07-01	1231	1231.9	1200	1200
2025-06-01	1231	1231.9	1200	1200
2025-05-01	1231	1231.9	1200	1200
2025-04-01	1231	1231.9	1200	1200
2025-03-01	1231	1231.9	1200	1200
2025-02-01	1229.9	1230.5	1200	1200
2025-01-01	1205.6	1199.7	1200	1200
2024-12-01	1205.6	1199.7	1200	1200
2024-11-01	1205.6	1199.7	1200	1200
2024-10-01	1205.6	1199.7	1200	1200
2024-09-01	1205.6	1199.7	1200	1200
2024-08-01	1205.6	1199.7	1200	1200
2024-07-01	1205.6	1199.7	1200	1200
2024-09-01	1205.6	1199.7	1200	1200
2024-05-01	1268.6	1279.3	1200	1200
2024-04-01	1268.6	1279.3	1200	1200
2024-03-01	1268.6	1279.3	1200	1200
2024-02-01	1268.6	1279.3	1200	1200
2024-01-01	1268.6	1279.3	1200	1200
2023-12-01	1268.6	1279.3	1200	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	2024 D2 Schools Individuals (U13 Girls)	2024-05-04	2024-05-04	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
2	D2 School League Finals 2023 (U11)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
3	D2 Schools Individuals 2023 (U11 Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
4	Gauteng Schools Individual Finals 2023 (U11 Girls)	2023-05-26	2023-05-26	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
5	D2 Schools Individuals 2022 (U11 Girls)	2022-05-07	2022-05-07	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Phetu, N (Nompumelelo)				Opponent Maree, L (Leane)
2	3	Tournament Gauteng Schools Individual Finals 2023				Tournament D2 School League Finals 2023
		date 2023-05-26	rnd 4	type Standard	result 1	date 2023-07-22	rnd 1	type Standard	result 1
		Opponent Mokgoko, G (Gontse)				Opponent Mogale, A (Amogelang)
3	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Sidino, K (Kamogelo Candy)				Opponent Benson, L (Lana)

#	Games	Start				End
1	3	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Phetu, N (Nompumelelo)				Opponent Maree, L (Leane)
2	3	Tournament Gauteng Schools Individual Finals 2023				Tournament D2 School League Finals 2023
		date 2023-05-26	rnd 4	type Standard	result 1	date 2023-07-22	rnd 1	type Standard	result 1
		Opponent Mokgoko, G (Gontse)				Opponent Mogale, A (Amogelang)
3	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Sidino, K (Kamogelo Candy)				Opponent Benson, L (Lana)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Phetu, N (Nompumelelo)				Opponent Maree, L (Leane)
2	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Sidino, K (Kamogelo Candy)				Opponent Benson, L (Lana)
3	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Ramalepa, M (Matshidiso)				Opponent Marais, M (Mia)

#	Games	Start				End
1	3	Tournament D2 School League Finals 2023				Tournament 2024 D2 Schools Individuals
		date 2023-07-22	rnd 4	type Standard	result 1	date 2024-05-04	rnd 1	type Standard	result 1
		Opponent Phetu, N (Nompumelelo)				Opponent Maree, L (Leane)
2	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 4	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Sidino, K (Kamogelo Candy)				Opponent Benson, L (Lana)
3	2	Tournament D2 Schools Individuals 2023				Tournament D2 Schools Individuals 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Ramalepa, M (Matshidiso)				Opponent Marais, M (Mia)

No games found.

#	Games	Start				End

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	Tlhale ,R (Reatile)	2	1	0	2	1	0	0	0	0	0	0	0
1	Tlhale ,R (Reatile)	2	1183.4	1183.4	2	1180	1183.4	0	0	0	0	0	0
2	Mokgoko ,G (Gontse)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mokgoko ,G (Gontse)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Maree ,L (Leane)	1	1	425	1	1	425	0	0	0	0	0	0
3	Maree ,L (Leane)	1	1124.7	1549.7	1	1107.8	1549.7	0	0	0	0	0	0
4	Sidino ,K (Kamogelo Candy)	1	1	425	1	1	425	0	0	0	0	0	0
4	Sidino ,K (Kamogelo Candy)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Smith ,K (Kyle)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Smith ,K (Kyle)	1	1261	836	1	1273.9	836	0	0	0	0	0	0
6	Smith ,A (Amore)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Smith ,A (Amore)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Mathibe ,K (Khanyisile)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mathibe ,K (Khanyisile)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Breet ,JL (Johannes Liam)	1	1	425	1	1	425	0	0	0	0	0	0
8	Breet ,JL (Johannes Liam)	1	1194.9	1619.9	1	1191.4	1619.9	0	0	0	0	0	0
9	Le Roux ,L (Lana-May)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Le Roux ,L (Lana-May)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Zwane ,P (Palesa Anathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Zwane ,P (Palesa Anathi)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Pereira, 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