Chess South Africa Ratings Database

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Personal

Bossert, P (Petrus Albertus)

Chess SA id

1140136349

FIDE id

Date of birth

2014-07-17 (U12)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

13.3

Junior GPX Points

1090.6

Item	Main	Standard	Rapid	Blitz
Rating	1231.7	1206.5	1260.4	1200
Raw rating	1230.6	1206.5	1257.5	1200
Weighted rating	1231.7	1198.3	1260.4	1200
Weighted performance	1025.6	1028.6	0	0
Floor	737.5	718.4	761.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.7	164.3	152.8	165.8
Highest rating	1294.2 2022-01-01	1294.2 2022-01-01	1464 2023-08-01	1200 2018-10-01
Highest raw rating	1237.5 2025-04-01	1218.4 2022-02-01	1261.6 2024-02-01	1200 2024-02-01
Highest weighted rating	1237.5 2025-07-01	1218.4 2022-02-01	1261.6 2025-07-01	1200 2018-10-01
Highest weighted performance	1294.2 2022-01-01	1294.2 2022-01-01	1464 2023-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.1	0	-0.3	0
New rating	1231.5	1206.5	1260.1	1200
Analysis
Rating	1231.7	1206.5	1260.4	1200
Raw rating	1230.6	1206.5	1257.5	1200
Weighted rating	1231.7	1198.3	1260.4
Weighted performance	1025.6	1028.6	0
K-factor	36	36	36	36
Floor	737.5	718.4	761.6	700
Max/Min rating change allowed	158.7	164.3	152.8	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	1230.6	1206.5	1257.5	1200
New weighted rating	1231.5	1199.3	1260.1	1200
New weighted performance	1018.9	1021.6	0	0
Temp new rating	1231.5	1206.5	1260.1	1200
Temp new rating +/-	-0.1	0	-0.3	0
Final new rating +/-	-0.1	0	-0.3	0
New rating	1231.5	1206.5	1260.1	1200
New K-factor	36	36	36	36
New floor	737.5	718.4	761.6	700

Item	Main	Standard	Rapid
	0	0	0
	15	10	5
	5	5	0
	20	15	5
	34	34	0
	0	0	0
History	74	64	10

Games since
	Main 20	Standard 15		Rapid 5		Blitz 0
Gender	Male
Age group	U12
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	15	6	40	-85	1233.6	1148.6
Standard	10	4.5	45	-42.5	1240.1	1197.6
Rapid	5	1.5	30	-170	1220.7	1050.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	36	48.65	-11.5	1194.6	1183.1
Standard	64	30.5	47.66	-19.9	1190.4	1170.5
Rapid	10	5.5	55	42.5	1221.2	1263.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1230.6	1206.5	1257.5	1200
2025-09-30	1230.6	1206.5	1257.5	1200
2025-09-01	1230.6	1206.5	1257.5	1200
2025-08-01	1230.6	1206.5	1257.5	1200
2025-07-01	1237.5	1206.5	1261.6	1200
2025-06-01	1237.5	1206.5	1261.6	1200
2025-05-01	1237.5	1206.5	1261.6	1200
2025-04-01	1237.5	1206.5	1261.6	1200
2025-03-01	1228.8	1188	1261.6	1200
2025-02-01	1226.8	1186.6	1261.6	1200
2025-01-01	1227.7	1188.6	1261.6	1200
2024-12-01	1227.7	1188.6	1261.6	1200
2024-11-01	1227.7	1188.6	1261.6	1200
2024-10-01	1227.7	1188.6	1261.6	1200
2024-09-01	1227.7	1188.6	1261.6	1200
2024-08-01	1227.7	1188.6	1261.6	1200
2024-07-01	1227.7	1188.6	1261.6	1200
2024-09-01	1227.7	1188.6	1261.6	1200
2024-05-01	1237.3	1189	1261.6	1200
2024-04-01	1237.3	1189	1261.6	1200
2024-03-01	1237.3	1189	1261.6	1200
2024-02-01	1237.3	1189	1261.6	1200
2024-01-01	1237.3	1189	1261.6	1200
2023-12-01	1237.3	1189	1261.6	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	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
2	Bojanala Circuit Championships 1 of 4 2025 (U12)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
3	Bojanala Wildcard 2025 (Knights)	2025-01-25	2025-01-25	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
2	Bojanala Circuit Championships 1 of 4 2025 (U12)	2025-03-01	2025-03-01	Standard	Bojanala Platina (NBR)	5	5	2.5	Yes	Analysis
3	Bojanala Wildcard 2025 (Knights)	2025-01-25	2025-01-25	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
4	Schoemies' Kwaggarus Chess Getaway 2024 (Senior)	2024-05-18	2024-05-18	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Bojanala's Rosewood 2023 (Center Pawns)	2023-08-12	2023-08-12	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
6	Bojanala School League 2023 (U9)	2023-08-19	2023-08-19	Rapid	Bojanala Platina (NBR)	7	5	4	Yes	Analysis
7	Olienpark - 2nd One for the Ages 2023 (U10)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
8	Harties Wolf Pack 2023 (U10)	2023-01-21	2023-01-21	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
9	Larries The Final Wild Card Tournament 2022 (U10)	2022-09-17	2022-09-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
10	Bojanala Chess Federation Wildcards 2022 (U10)	2022-08-20	2022-08-20	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
11	Bojanala Chess Federation Clash of Schools 2022 (PS Juniors)	2022-07-23	2022-07-23	Standard	Bojanala Platina (NBR)	4	4	2	Yes	Analysis
12	One For The Ages 2022 (U10)	2022-07-16	2022-07-16	Standard	Bojanala Platina (NBR)	5	5	1.5	Yes	Analysis
13	Vastrap 2022 (Development)	2022-02-05	2022-02-05	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
14	Lebone II 2022 (U10)	2022-02-12	2022-02-12	Standard	Bojanala Platina (NBR)	5	5	0.5	Yes	Analysis
15	The Meridian 2022 (Development)	2022-01-22	2022-01-22	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Bojanala Circuit Championships 1 of 4 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-07-26	rnd 1	type Rapid	result 0.5
		Opponent Coetzee, W (Willie)				Opponent Molope, B (Botlhale)
2	4	Tournament Bojanala School League 2023				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2023-08-19	rnd 3	type Rapid	result 1	date 2024-05-18	rnd 1	type Standard	result 1
		Opponent Steenberg, K (Katie-Lee)				Opponent Smith, G (Gustav)
3	3	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-07-23	rnd 3	type Standard	result 0.5	date 2022-08-20	rnd 1	type Standard	result 1
		Opponent Katane, L (Lesedi)				Opponent Tumagole, L (Leano Botshelo)

#	Games	Start				End
1	3	Tournament Bojanala Circuit Championships 1 of 4 2025				Tournament Bojanala Circuit Championships 1 of 4 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 5	type Standard	result 1
		Opponent Coetzee, W (Willie)				Opponent Diphoko, P (Phitlhello)
2	3	Tournament Bojanala Chess Federation Clash of Schools 2022				Tournament Bojanala Chess Federation Wildcards 2022
		date 2022-07-23	rnd 3	type Standard	result 0.5	date 2022-08-20	rnd 1	type Standard	result 1
		Opponent Katane, L (Lesedi)				Opponent Tumagole, L (Leano Botshelo)
3	2	Tournament Bojanala's Rosewood 2023				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2023-08-12	rnd 5	type Standard	result 1	date 2024-05-18	rnd 1	type Standard	result 1
		Opponent Van Der Merwe, N (Nicole)				Opponent Smith, G (Gustav)

#	Games	Start				End
1	4	Tournament Bojanala School League 2023				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2023-08-19	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 1	type Rapid	result 0.5
		Opponent Steenberg, K (Katie-Lee)				Opponent Molope, B (Botlhale)
2	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Jonas, M (Minenhle)
3	1	Tournament Bojanala School League 2023				Tournament Bojanala School League 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 1	type Rapid	result 1
		Opponent Mashala, T (Tlotlo)				Opponent Mashala, T (Tlotlo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Bojanala School League 2023				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2023-08-19	rnd 3	type Rapid	result 1	date 2024-05-18	rnd 1	type Standard	result 1
		Opponent Steenberg, K (Katie-Lee)				Opponent Smith, G (Gustav)
2	2	Tournament Bojanala's Rosewood 2023				Tournament Bojanala School League 2023
		date 2023-08-12	rnd 5	type Standard	result 1	date 2023-08-19	rnd 1	type Rapid	result 1
		Opponent Van Der Merwe, N (Nicole)				Opponent Mashala, T (Tlotlo)
3	2	Tournament Bojanala's Rosewood 2023				Tournament Bojanala's Rosewood 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Maserumule, T (Tlotlo)				Opponent Motloba, R (Regomoditswe)

#	Games	Start				End
1	2	Tournament Bojanala's Rosewood 2023				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2023-08-12	rnd 5	type Standard	result 1	date 2024-05-18	rnd 1	type Standard	result 1
		Opponent Van Der Merwe, N (Nicole)				Opponent Smith, G (Gustav)
2	2	Tournament Bojanala's Rosewood 2023				Tournament Bojanala's Rosewood 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Maserumule, T (Tlotlo)				Opponent Motloba, R (Regomoditswe)
3	2	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Moagi, K (Kaboentle)				Opponent Toughey, D (Dylan)

#	Games	Start				End
1	3	Tournament Bojanala School League 2023				Tournament Bojanala School League 2023
		date 2023-08-19	rnd 3	type Rapid	result 1	date 2023-08-19	rnd 6	type Rapid	result 1
		Opponent Steenberg, K (Katie-Lee)				Opponent Sehlakgne, O (Owethu)
2	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 3	type Rapid	result 1
		Opponent Jonas, M (Minenhle)				Opponent Jonas, M (Minenhle)
3	1	Tournament Bojanala School League 2023				Tournament Bojanala School League 2023
		date 2023-08-19	rnd 1	type Rapid	result 1	date 2023-08-19	rnd 1	type Rapid	result 1
		Opponent Mashala, T (Tlotlo)				Opponent Mashala, T (Tlotlo)

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	Mpipi ,S (Selabe)	3	2	141.7	2	2	425	1	0	-425	0	0	0
1	Mpipi ,S (Selabe)	3	1239.1	1380.7	2	1179.6	1664.1	1	1200	814.1	0	0	0
2	Fourie ,K (Karla)	2	1	0	2	1	0	0	0	0	0	0	0
2	Fourie ,K (Karla)	2	1040.2	1040.2	2	1033.8	1040.2	0	0	0	0	0	0
3	Makumule ,W (Washu Mokgabo)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Makumule ,W (Washu Mokgabo)	2	1225.8	800.8	2	1230.8	800.8	0	0	0	0	0	0
4	Monare ,O (Oreratile)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Monare ,O (Oreratile)	2	1265.2	840.2	2	1267.4	840.2	0	0	0	0	0	0
5	Tumagole ,L (Leano Botshelo)	2	2	425	2	2	425	0	0	0	0	0	0
5	Tumagole ,L (Leano Botshelo)	2	1149.5	1574.5	2	1140.6	1574.5	0	0	0	0	0	0
6	Britz ,D (David)	2	2	425	2	2	425	0	0	0	0	0	0
6	Britz ,D (David)	2	1096.6	1521.6	2	1080	1521.6	0	0	0	0	0	0
7	Motau ,N (Neelo)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Motau ,N (Neelo)	2	1377.2	952.2	2	1379.7	952.2	0	0	0	0	0	0
8	Moagi ,K (Kaboentle)	1	1	425	1	1	425	0	0	0	0	0	0
8	Moagi ,K (Kaboentle)	1	1079.6	1504.6	1	1056.4	1504.6	0	0	0	0	0	0
9	Changara ,A (Alvis Tafadzwa)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Changara ,A (Alvis Tafadzwa)	1	1192.1	767.1	1	1188.8	767.1	0	0	0	0	0	0
10	Maserumule ,T (Tlotlo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Maserumule ,T (Tlotlo)	1	1083	1508	1	1068.4	1508	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Bossert, P (Petrus Albertus)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms