Chess South Africa Ratings Database

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Personal

Petersen, B (Brionay)

Chess SA id

2120119685

FIDE id

Date of birth

2012-11-13 (U14)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1238.6

Item	Main	Standard	Rapid	Blitz
Rating	1323.3	1315.5	1245.4	1164.8
Raw rating	1307.1	1294.4	1245.4	1164.8
Weighted rating	1323.3	1315.5	1245.4	1164.8
Weighted performance	1145.1	1136.3	774.6	0
Floor	932.5	951.3	758	700
K-factor	32	32	36	36
Min/Max rating change allowed	142.3	144.9	155.4	174.3
Highest rating	1477.6 2022-10-01	1466.6 2022-09-01	1286.8 2022-10-01	1200 2018-10-01
Highest raw rating	1432.5 2022-11-01	1451.3 2022-10-01	1258 2022-11-01	1200 2019-12-01
Highest weighted rating	1432.5 2024-02-01	1451.3 2023-11-01	1258 2024-10-01	1200 2018-10-01
Highest weighted performance	1477.6 2022-10-01	1466.6 2022-09-01	1286.8 2022-10-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.6	-2	0	0
New rating	1321.7	1313.5	1245.4	1164.8
Analysis
Rating	1323.3	1315.5	1245.4	1164.8
Raw rating	1307.1	1294.4	1245.4	1164.8
Weighted rating	1323.3	1315.5	1245.4
Weighted performance	1145.1	1136.3	774.6
K-factor	32	32	36	36
Floor	932.5	951.3	758	700
Max/Min rating change allowed	142.3	144.9	155.4	174.3
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	1307.1	1294.4	1245.4	1164.8
New weighted rating	1321.7	1313.5	1245.4	1164.8
New weighted performance	1138	1129.2	767.2	0
Temp new rating	1321.7	1313.5	1245.4	1164.8
Temp new rating +/-	-1.6	-2	0	0
Final new rating +/-	-1.6	-2	0	0
New rating	1321.7	1313.5	1245.4	1164.8
New K-factor	32	32	36	36
New floor	932.5	951.3	758	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	29	29	0	0
	27	27	0	0
	35	35	0	0
	65	37	22	6
	5	0	5	0
History	181	148	27	6

Games since
	Main 56	Standard 56		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3037		988		276
Female	609		242		74
U14	556		188		55
U14 Female	146		60		20
Standard
	RSA		Province		Region
Overall	3023		871		276
Female	597		226		77
U14	560		165		57
U14 Female	151		62		21
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	29	16	55.17	44	1238.8	1282.8
Standard	29	16	55.17	44	1238.8	1282.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	181	104.5	57.73	65.7	1234.8	1300.5
Standard	148	87.5	59.12	77.5	1224.8	1302.3
Rapid	27	15	55.56	47.2	1280.3	1327.5
Blitz	6	2	33.33	-141.7	1276.3	1134.6

Date	Main	Standard	Rapid	Blitz
2025-11-01	1307.1	1294.4	1245.4	1164.8
2025-09-30	1307.1	1294.4	1245.4	1164.8
2025-09-01	1327.3	1321	1245.4	1164.8
2025-08-01	1327.3	1321	1245.4	1164.8
2025-07-01	1327.3	1321	1245.4	1164.8
2025-06-01	1327.3	1321	1245.4	1164.8
2025-05-01	1327.3	1321	1245.4	1164.8
2025-04-01	1325.6	1318.9	1245.4	1164.8
2025-03-01	1339	1336.3	1245.4	1164.8
2025-02-01	1331.5	1327.4	1245.4	1164.8
2025-01-01	1311.8	1301.3	1245.4	1164.8
2024-12-01	1311.8	1301.3	1245.4	1164.8
2024-11-01	1311.8	1301.3	1245.4	1164.8
2024-10-01	1311.8	1301.3	1245.4	1164.8
2024-09-01	1328.5	1319.9	1245.4	1164.8
2024-08-01	1328.5	1319.9	1245.4	1164.8
2024-07-01	1328.5	1319.9	1245.4	1164.8
2024-09-01	1328.5	1319.9	1245.4	1164.8
2024-05-01	1339.9	1336.5	1245.4	1164.8
2024-04-01	1339.9	1336.5	1245.4	1164.8
2024-03-01	1335.9	1330.7	1245.4	1164.8
2024-02-01	1354.2	1355	1245.4	1164.8
2024-01-01	1329.2	1326.5	1245.4	1164.8
2023-12-01	1329.2	1326.5	1245.4	1164.8

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 (U13 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	2	Yes	Analysis
2	Eden Chess Trials 2 2025 (U14)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	3	Yes	Analysis
3	Hessequa Ontwikkelings Toernooi 2025 (U13 Girls)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	Hessequa Skole Proewe 2 2025 (U13 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
6	Hessequa Skole Skaak 2025 (O13 Dogters)	2025-01-25	2025-01-25	Standard	Eden (WEG)	5	5	4	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 (U13 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	2	Yes	Analysis
2	Eden Chess Trials 2 2025 (U14)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	3	Yes	Analysis
3	Hessequa Ontwikkelings Toernooi 2025 (U13 Girls)	2025-03-01	2025-03-01	Standard	Eden (WEG)	5	4	2	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U13 Girls)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	Hessequa Skole Proewe 2 2025 (U13 Girls)	2025-02-15	2025-02-15	Standard	Eden (WEG)	5	5	3	Yes	Analysis
6	Hessequa Skole Skaak 2025 (O13 Dogters)	2025-01-25	2025-01-25	Standard	Eden (WEG)	5	5	4	Yes	Analysis
7	Western Cape Top Schools Championship 2024 (U13 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
8	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
9	Eden School Chess Trials 1 2024 (U13 Girls)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
10	Hessequa Skole Proewe 2 2024 (U13 Girls)	2024-02-03	2024-02-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
11	Hessequa Proewe 1 2024 (U13 Girls)	2024-01-27	2024-01-27	Standard	Eden (WEG)	5	5	4	Yes	Analysis
12	Western Cape Top Schools 2023 (U13 Girls)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
13	Eden Top Schools 2023 (U13 Girls)	2023-08-19	2023-08-19	Standard	Eden (WEG)	5	4	4	Yes	Analysis
14	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
15	Eden Trials 2+3 2023 (U12)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	4	2	Yes	Analysis
16	Eden Trails 1 2023 (U11 Girls)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
17	Hessequa Proewe 2 2023 (O11 Dogters)	2023-02-11	2023-02-11	Standard	Eden (WEG)	5	5	3	Yes	Analysis
18	Hessequa Proewe 1 2023 (O11 Dogters)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	4	Yes	Analysis
19	George Open 2022 (C)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	2	Yes	Analysis
20	VGK 2022 (Rapid Development)	2022-11-12	2022-11-12	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
21	VGK 2022 (Blitz)	2022-11-12	2022-11-12	Blitz	Eden (WEG)	6	6	2	Yes	Analysis
22	Hessequa Ontwikkeling 2022 (Laerskole)	2022-10-22	2022-10-22	Rapid	Eden (WEG)	5	5	4	Yes	Analysis
23	Western Cape Top Schools 2022 (U11 Girls)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
24	Pacaltsdorp Chess Club 2022 (Development)	2022-08-27	2022-08-27	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
25	Eden Topskole 2022 (O11 Dogters)	2022-08-13	2022-08-13	Standard	Eden (WEG)	6	6	6	Yes	Analysis
26	Knysna Oyster Festival Rapid Chess 2022 (B)	2022-07-02	2022-07-02	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
27	Western Cape Schools 2022 (U11 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
28	Eden Proewe 2 2022 (O11 Dogters)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	4	Yes	Analysis
29	Eden Proewe 1 2022 (O11 Dogters)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	4	Yes	Analysis
30	Hessequa Proewe 1 2022 (O11 Dogters)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
31	Eden Proewe 2021 (O9 Dogters)	2021-10-15	2021-10-15	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
32	Eden Schools Closed Trials 1 2020 (U9 Girls)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	2	Yes	Analysis
33	Hessequa Skaak Proewe 2 2020 (O9 Dogters)	2020-02-22	2020-02-22	Standard	Eden (WEG)	5	5	3	Yes	Analysis
34	Hessequa Skaak Proewe 1 2020 (O9 Dogters)	2020-02-01	2020-02-01	Standard	Eden (WEG)	5	4	1	Yes	Analysis
35	Hessequa Ontwikkelings Toernooi 2019 (B)	2019-11-01	2019-11-01	Standard	Eden (WEG)	6	6	1	Yes	Analysis

#	Games	Start				End
1	10	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Pacaltsdorp Chess Club 2022
		date 2022-07-02	rnd 5	type Rapid	result 1	date 2022-08-27	rnd 3	type Rapid	result 1
		Opponent Chirwa, M (Merina)				Opponent Blignaut, DC (Dane Chelsea)
2	9	Tournament Western Cape Top Schools 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-09-16	rnd 1	type Standard	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Ngqoza, U (Usenathi)				Opponent Van Zyl, L (Lisa)
3	6	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Proewe 2 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Olkers, F (Faith)				Opponent Van Zyl, L (Lisa)

#	Games	Start				End
1	11	Tournament Eden Topskole 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-13	rnd 1	type Standard	result 1	date 2022-09-17	rnd 5	type Standard	result 1
		Opponent Benn, C (Ciara)				Opponent Scholtz, H (Hayley)
2	6	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Proewe 2 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Olkers, F (Faith)				Opponent Van Zyl, L (Lisa)
3	5	Tournament Eden Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-08-19	rnd 1	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Van Rooyen, N (Nedee Lee)				Opponent Van Wyk, S (Sasha-Lee)

#	Games	Start				End
1	4	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 1	type Rapid	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Gelderblom, M (Mia)				Opponent Van Zyl, L (Lisa)
2	4	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Pacaltsdorp Chess Club 2022
		date 2022-07-02	rnd 5	type Rapid	result 1	date 2022-08-27	rnd 3	type Rapid	result 1
		Opponent Chirwa, M (Merina)				Opponent Blignaut, DC (Dane Chelsea)
3	2	Tournament Eden Proewe 2021				Tournament Eden Proewe 2021
		date 2021-10-15	rnd 3	type Rapid	result 1	date 2021-10-15	rnd 4	type Rapid	result 1
		Opponent Blignaut, DC (Dane Chelsea)				Opponent Le Roux, M (Melandi)

#	Games	Start				End
1	2	Tournament VGK 2022				Tournament VGK 2022
		date 2022-11-12	rnd 4	type Blitz	result 1	date 2022-11-12	rnd 5	type Blitz	result 1
		Opponent Johnson, A (Amber)				Opponent Johnson, A (Amy)

#	Games	Start				End
1	10	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Pacaltsdorp Chess Club 2022
		date 2022-07-02	rnd 5	type Rapid	result 1	date 2022-08-27	rnd 3	type Rapid	result 1
		Opponent Chirwa, M (Merina)				Opponent Blignaut, DC (Dane Chelsea)
2	9	Tournament Western Cape Top Schools 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-09-16	rnd 1	type Standard	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Ngqoza, U (Usenathi)				Opponent Van Zyl, L (Lisa)
3	6	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Proewe 2 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Olkers, F (Faith)				Opponent Van Zyl, L (Lisa)

#	Games	Start				End
1	11	Tournament Eden Topskole 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-13	rnd 1	type Standard	result 1	date 2022-09-17	rnd 5	type Standard	result 1
		Opponent Benn, C (Ciara)				Opponent Scholtz, H (Hayley)
2	6	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Proewe 2 2025
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Olkers, F (Faith)				Opponent Van Zyl, L (Lisa)
3	5	Tournament Eden Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-08-19	rnd 1	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Van Rooyen, N (Nedee Lee)				Opponent Van Wyk, S (Sasha-Lee)

#	Games	Start				End
1	4	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 1	type Rapid	result 1	date 2022-10-22	rnd 4	type Rapid	result 1
		Opponent Gelderblom, M (Mia)				Opponent Van Zyl, L (Lisa)
2	4	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Pacaltsdorp Chess Club 2022
		date 2022-07-02	rnd 5	type Rapid	result 1	date 2022-08-27	rnd 3	type Rapid	result 1
		Opponent Chirwa, M (Merina)				Opponent Blignaut, DC (Dane Chelsea)
3	2	Tournament Eden Proewe 2021				Tournament Eden Proewe 2021
		date 2021-10-15	rnd 3	type Rapid	result 1	date 2021-10-15	rnd 4	type Rapid	result 1
		Opponent Blignaut, DC (Dane Chelsea)				Opponent Le Roux, M (Melandi)

#	Games	Start				End
1	2	Tournament VGK 2022				Tournament VGK 2022
		date 2022-11-12	rnd 4	type Blitz	result 1	date 2022-11-12	rnd 5	type Blitz	result 1
		Opponent Johnson, A (Amber)				Opponent Johnson, A (Amy)

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	Johnson ,A (Amy)	7	4	60.7	5	3	85	1	0	-425	1	1	425
1	Johnson ,A (Amy)	7	1291.3	1352	5	1255	1376.3	1	1132	866.3	1	1200	1716.3
2	Sauls ,G (Glinnis-Lynn)	6	4	141.7	5	3	85	1	1	425	0	0	0
2	Sauls ,G (Glinnis-Lynn)	6	1260.1	1401.7	5	1254.9	1345.1	1	1160	1685.1	0	0	0
3	Moses ,J (Jay-Leigh)	5	0.5	-340	3	0.5	-283.3	2	0	-425	0	0	0
3	Moses ,J (Jay-Leigh)	5	1226.8	886.8	3	1196.4	943.5	2	1214.4	801.8	0	0	0
4	Groenewalt ,M (Minka)	4	4	425	4	4	425	0	0	0	0	0	0
4	Groenewalt ,M (Minka)	4	1203.7	1628.7	4	1196.9	1628.7	0	0	0	0	0	0
5	Goliath ,H (Hayley)	4	4	425	4	4	425	0	0	0	0	0	0
5	Goliath ,H (Hayley)	4	1120.5	1545.5	4	1108.8	1545.5	0	0	0	0	0	0
6	Taute ,E (Edwina)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
6	Taute ,E (Edwina)	4	1298.3	1085.8	4	1287.5	1085.8	0	0	0	0	0	0
7	Meyer ,X (Xaydia)	4	2	0	4	2	0	0	0	0	0	0	0
7	Meyer ,X (Xaydia)	4	1284.4	1284.4	4	1309.9	1284.4	0	0	0	0	0	0
8	Van Zyl ,L (Lisa)	4	2	0	3	1	-141.7	1	1	425	0	0	0
8	Van Zyl ,L (Lisa)	4	1390.8	1390.8	3	1393	1249.1	1	1200	1815.8	0	0	0
9	Benn ,C (Ciara)	3	3	425	3	3	425	0	0	0	0	0	0
9	Benn ,C (Ciara)	3	1207.2	1632.2	3	1208.8	1632.2	0	0	0	0	0	0
10	Albertyn ,A (Aliyah)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
10	Albertyn ,A (Aliyah)	3	1400.9	1259.3	3	1397.5	1259.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Petersen, B (Brionay)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms