Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Toit, B (Bonicia Bianca)

Chess SA id

2060139945

FIDE id

Date of birth

2006-12-30 (U20)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-04-05

Personal details last changed

1900-01-01

Junior GPX Games

20.9

Junior GPX Points

1388.4

Item	Main	Standard	Rapid	Blitz
Rating	1398.3	1386.4	1238.2	1200
Raw rating	1398.3	1385.9	1238.2	1200
Weighted rating	1397.7	1386.4	1229.8	1200
Weighted performance	1297.1	1281.5	0	0
Floor	983.7	968	738.2	700
K-factor	32	32	36	36
Min/Max rating change allowed	125	127.2	157	165.8
Highest rating	1483.7 2025-03-01	1468 2025-03-01	1341.7 2024-10-01	1200 2018-10-01
Highest raw rating	1483.7 2025-03-01	1468 2025-03-01	1238.2 2024-11-01	1200 2024-03-01
Highest weighted rating	1391.7 2025-08-01	1381.6 2025-08-01	1224.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1483.7 2025-03-01	1468 2024-08-01	1341.7 2024-10-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.1	1.4	0	0
New rating	1399.4	1387.7	1238.2	1200
Analysis
Rating	1398.3	1386.4	1238.2	1200
Raw rating	1398.3	1385.9	1238.2	1200
Weighted rating	1397.7	1386.4	1229.8
Weighted performance	1297.1	1281.5	0
K-factor	32	32	36	36
Floor	983.7	968	738.2	700
Max/Min rating change allowed	125	127.2	157	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	1398.3	1385.9	1238.2	1200
New weighted rating	1399.4	1387.7	1231.2	1200
New weighted performance	1288.7	1273.2	0	0
Temp new rating	1399.4	1387.7	1238.2	1200
Temp new rating +/-	1.1	1.4	0	0
Final new rating +/-	1.1	1.4	0	0
New rating	1399.4	1387.7	1238.2	1200
New K-factor	32	32	36	36
New floor	983.7	968	738.2	700

Item	Main	Standard	Rapid
	0	0	0
	13	13	0
	55	50	5
	32	32	0
	15	15	0
	0	0	0
History	115	110	5

Games since
	Main 68	Standard 63		Rapid 5		Blitz 0
Gender	Female
Age group	U20
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2199		773		281
Female	371		141		57
U20	183		58		19
U20 Female	33		14		6
Standard
	RSA		Province		Region
Overall	2253		846		320
Female	396		152		64
U20	186		63		25
U20 Female	41		16		7
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	13	4.5	34.62	-130.8	1496.8	1366
Standard	13	4.5	34.62	-130.8	1496.8	1366
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	115	68.5	59.57	81.3	1283.9	1365.2
Standard	110	64.5	58.64	73.4	1285.8	1359.2
Rapid	5	4	80	255	1242.2	1497.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1398.3	1385.9	1238.2	1200
2025-09-30	1398.3	1385.9	1238.2	1200
2025-09-01	1398.3	1385.9	1238.2	1200
2025-08-01	1398.3	1385.9	1238.2	1200
2025-07-01	1398.3	1385.9	1238.2	1200
2025-06-01	1398.3	1385.9	1238.2	1200
2025-05-01	1398.3	1385.9	1238.2	1200
2025-04-01	1483.7	1468	1238.2	1200
2025-03-01	1483.7	1468	1238.2	1200
2025-02-01	1435.9	1416.8	1238.2	1200
2025-01-01	1435.9	1416.8	1238.2	1200
2024-12-01	1393.6	1368.6	1238.2	1200
2024-11-01	1393.6	1368.6	1238.2	1200
2024-10-01	1375.5	1368.6	1200	1200
2024-09-01	1376.5	1384.4	1200	1200
2024-08-01	1330	1334.4	1200	1200
2024-07-01	1345.5	1355.3	1200	1200
2024-09-01	1345.5	1355.3	1200	1200
2024-05-01	1289	1285.1	1200	1200
2024-04-01	1289	1285.1	1200	1200
2024-03-01	1289	1285.1	1200	1200
2024-02-01	1289	1285.1	1200	1200
2024-01-01	1352.6	1353.9	1200	1200
2023-12-01	1352.6	1353.9	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	South African Junior Closed Chess Championships 2025 (U20 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2	Yes	Analysis
2	2025 Blou Bul Open Chess Tournament (B)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Junior Closed Chess Championships 2025 (U20 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2	Yes	Analysis
2	2025 Blou Bul Open Chess Tournament (B)	2025-02-08	2025-02-08	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
3	Gauteng Inter-Region at UJ 2024 (U20)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
4	Gauteng Top Schools 2024 (U19 Girls)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
5	2024 Tuks Open Chess Tournament (B)	2024-09-28	2024-09-28	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
6	Centurion Chess Open Tournament 2024 (B)	2024-09-21	2024-09-21	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	2024 Etienne Lewis (U18+U20)	2024-08-30	2024-09-01	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
8	Gauteng Schools Individuals Finals 2024 (U18 Girls)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	2024 Alekhine Open Chess Tournament (B)	2024-08-09	2024-08-10	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
10	2024 Tshwane North School District Team League Finals (U19 Girls)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	1	1	1	Yes	Analysis
11	2024 Tshwane North School District Cluster 4 & 5 Team League (U19 Girls)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	2	2	1	Yes	Analysis
12	2024 Tshwane North School District CLOSED Individual Champioships (U18 Girls)	2024-05-11	2024-05-11	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
13	District 3 Cluster 4 and 5 Individuals 2024 (U18 Girls)	2024-05-04	2024-05-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
14	2024 Gauteng Inter-Region Chess Championship (U18 Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
15	2023 Gauteng Top Schools (U17 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
16	2023 Tshwane North School District CLOSED League Championships (D3)	2023-08-12	2023-08-12	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
17	2023 Etienne Lewis Closed Tournament (U18+U20)	2023-08-25	2023-08-27	Standard	Tshwane (GTP)	7	7	3.5	Yes	Analysis
18	2023 Tshwane North School District CLOSED Individual Championships (D3)	2023-05-13	2023-05-13	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
19	Gauteng Schools Individual Finals 2023 (U18 Girls)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
20	2023 Tshwane Chess Open Registration Tournament (D2)	2023-01-28	2023-01-28	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
21	2022 Gauteng Schools Team Championships (U17 Open)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	1	1	Yes	Analysis
22	2022 Gauteng Schools Individual Chess Championship (U18 Girls)	2022-06-18	2022-06-18	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
23	2022 D3 Cluster Teams (U17)	2022-05-28	2022-05-28	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
24	2022 D3 Cluster City Schools (U18 Girls)	2022-04-23	2022-04-23	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament 2024 Tshwane North School District CLOSED Individual Champioships
		date 2024-01-14	rnd 5	type Standard	result 0.5	date 2024-05-11	rnd 3	type Standard	result 0.5
		Opponent Nyarenda, M (Miranda)				Opponent Van Eden, J (Jennifer)
2	7	Tournament 2023 Tshwane Chess Open Registration Tournament				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Erwee, E (Elizabeth)				Opponent Grahan, C (Chie-Ann)
3	6	Tournament 2024 Etienne Lewis				Tournament Centurion Chess Open Tournament 2024
		date 2024-08-31	rnd 3	type Standard	result 0.5	date 2024-09-21	rnd 1	type Standard	result 1
		Opponent Mabotja, M (Molatelo)				Opponent Jonker, T (Tertius)

#	Games	Start				End
1	9	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament 2024 Tshwane North School District CLOSED Individual Champioships
		date 2024-01-14	rnd 5	type Standard	result 0.5	date 2024-05-11	rnd 3	type Standard	result 0.5
		Opponent Nyarenda, M (Miranda)				Opponent Van Eden, J (Jennifer)
2	7	Tournament 2023 Tshwane Chess Open Registration Tournament				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Erwee, E (Elizabeth)				Opponent Grahan, C (Chie-Ann)
3	6	Tournament 2024 Etienne Lewis				Tournament Centurion Chess Open Tournament 2024
		date 2024-08-31	rnd 3	type Standard	result 0.5	date 2024-09-21	rnd 1	type Standard	result 1
		Opponent Mabotja, M (Molatelo)				Opponent Jonker, T (Tertius)

#	Games	Start				End
1	3	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Tshioma, M (Mukatshelwa)				Opponent Gumbo, B (Bajabulile)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Sweeting, L (Leila)				Opponent Sweeting, L (Leila)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament 2023 Tshwane Chess Open Registration Tournament				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Erwee, E (Elizabeth)				Opponent Grahan, C (Chie-Ann)
2	5	Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League				Tournament 2024 Alekhine Open Chess Tournament
		date 2024-07-20	rnd 2	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Mutendeh, N (Natalie)				Opponent Matsiokolo, G (Godisang)
3	5	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Tshwane North School District CLOSED League Championships
		date 2023-05-27	rnd 4	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Kgabisang, B (Boikanyo)				Opponent Ramashala, K (Keletso)

#	Games	Start				End
1	7	Tournament 2023 Tshwane Chess Open Registration Tournament				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-01-28	rnd 3	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Erwee, E (Elizabeth)				Opponent Grahan, C (Chie-Ann)
2	5	Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League				Tournament 2024 Alekhine Open Chess Tournament
		date 2024-07-20	rnd 2	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Mutendeh, N (Natalie)				Opponent Matsiokolo, G (Godisang)
3	5	Tournament Gauteng Schools Individual Finals 2023				Tournament 2023 Tshwane North School District CLOSED League Championships
		date 2023-05-27	rnd 4	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Kgabisang, B (Boikanyo)				Opponent Ramashala, K (Keletso)

#	Games	Start				End
1	3	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Tshioma, M (Mukatshelwa)				Opponent Gumbo, B (Bajabulile)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 5	type Rapid	result 1	date 2024-10-05	rnd 5	type Rapid	result 1
		Opponent Sweeting, L (Leila)				Opponent Sweeting, L (Leila)

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	Mutendeh ,N (Natalie)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
1	Mutendeh ,N (Natalie)	4	1144.3	1356.8	4	1133.8	1356.8	0	0	0	0	0	0
2	Tivane ,VL (Violet Lebo)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Tivane ,VL (Violet Lebo)	3	1304.6	1587.9	3	1300.7	1587.9	0	0	0	0	0	0
3	Van Eden ,J (Jennifer)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Van Eden ,J (Jennifer)	2	1202.1	1414.6	2	1202.9	1414.6	0	0	0	0	0	0
4	Wiblin ,C (Claire)	2	1	0	2	1	0	0	0	0	0	0	0
4	Wiblin ,C (Claire)	2	675.8	675.8	2	701.8	675.8	0	0	0	0	0	0
5	Jordaan ,L (Larochelle)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
5	Jordaan ,L (Larochelle)	2	1262.7	1475.2	2	1268.4	1475.2	0	0	0	0	0	0
6	Janse Van Rensburg ,G (Gerrit)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Janse Van Rensburg ,G (Gerrit)	2	1415.7	990.7	2	1406.1	990.7	0	0	0	0	0	0
7	Grahan ,C (Chie-Ann)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Grahan ,C (Chie-Ann)	2	1194.9	1407.4	2	1188.2	1407.4	0	0	0	0	0	0
8	Sibanda ,AP (Andile Patience)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Sibanda ,AP (Andile Patience)	2	1415.1	990.1	2	1401.2	990.1	0	0	0	0	0	0
9	Mnisi ,N (Noxolo)	2	2	425	2	2	425	0	0	0	0	0	0
9	Mnisi ,N (Noxolo)	2	1214.3	1639.3	2	1218	1639.3	0	0	0	0	0	0
10	Govender ,M (Mikaela)	1	1	425	1	1	425	0	0	0	0	0	0
10	Govender ,M (Mikaela)	1	1270	1695	1	1261.8	1695	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

Du Toit, B (Bonicia Bianca)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms