Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bosman, PE (Pieter)

Chess SA id

1140321401

FIDE id

Date of birth

2014-09-04 (U12)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

34.4

Junior GPX Points

1243.5

Item	Main	Standard	Rapid	Blitz
Rating	1298.6	1349.1	1199.9	1255.5
Raw rating	1298.6	1338.3	1198.9	1255.5
Weighted rating	1247	1252.8	1199.9	1220.4
Weighted performance	1295.7	1349.1	0	0
Floor	858.6	878.6	700	755.5
K-factor	36	36	36	36
Min/Max rating change allowed	144.1	136.2	166.1	153.2
Highest rating	1417.5 2025-09-30	1424.4 2025-09-30	1200 2025-06-01	1255.5 2025-07-01
Highest raw rating	1358.6 2025-09-30	1378.6 2025-09-30	1200 2025-06-01	1255.5 2025-07-01
Highest weighted rating	1247 2025-11-01	1252.8 2025-11-01	1200 2025-06-01	1208.7 2025-08-01
Highest weighted performance	1417.5 2025-09-30	1424.4 2025-09-30	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	-8	-0.1	0
New rating	1298.6	1341.1	1199.8	1255.5
Analysis
Rating	1298.6	1349.1	1199.9	1255.5
Raw rating	1298.6	1338.3	1198.9	1255.5
Weighted rating	1247	1252.8	1199.9
Weighted performance	1295.7	1349.1	0
K-factor	36	36	36	36
Floor	858.6	878.6	700	755.5
Max/Min rating change allowed	144.1	136.2	166.1	153.2
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	1298.6	1338.3	1198.9	1255.5
New weighted rating	1252.7	1261.4	1199.8	1223.9
New weighted performance	1288	1341.1	0	0
Temp new rating	1298.6	1341.1	1199.8	1255.5
Temp new rating +/-	0	-8	-0.1	0
Final new rating +/-	0	-8	-0.1	0
New rating	1298.6	1341.1	1199.8	1255.5
New K-factor	36	36	36	36
New floor	858.6	878.6	700	755.5

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	44	30	7	7
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	44	30	7	7

Games since
	Main 44	Standard 30		Rapid 7		Blitz 7
Gender	Male
Age group	U12
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	3283		1101		126
Male	2568		856		101
U12	499		167		16
U12 Male	352		120		13
Standard
	RSA		Province		Region
Overall	2661		973		101
Male	2135		779		83
U12	368		139		12
U12 Male	270		98		9
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	44	27.5	62.5	106.2	1281.7	1387.9
Standard	30	19	63.33	113.3	1297.5	1410.8
Rapid	7	3.5	50	0	1238.8	1238.8
Blitz	7	5	71.43	182.1	1257	1439.1
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	44	27.5	62.5	106.2	1281.7	1387.9
Standard	30	19	63.33	113.3	1297.5	1410.8
Rapid	7	3.5	50	0	1238.8	1238.8
Blitz	7	5	71.43	182.1	1257	1439.1

Date	Main	Standard	Rapid	Blitz
2025-11-01	1298.6	1338.3	1198.9	1255.5
2025-09-30	1358.6	1378.6	1200	1255.5
2025-09-01	1349.9	1359.5	1200	1255.5
2025-08-01	1289.7	1286.4	1200	1255.5
2025-07-01	1293.1	1289.9	1200	1255.5
2025-06-01	1254.5	1267.5	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	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
2024-09-01	1200	1200	1200	1200
2024-05-01	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

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	2025 Gauteng Schools Provincial Individual Chess Championship (U11 Boys)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2025 Super 8 (Senior)	2025-09-26	2025-09-26	Rapid	Ekurhuleni (GE)	7	7	3.5	Yes	Analysis
3	Sedibeng Chess Open 06 Sept 2025 (E)	2025-09-06	2025-09-06	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	GDE (D7) Sedibeng East Schools 2025 (U13)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
5	Eureka Chess Open 26 July 2025 (G)	2025-07-26	2025-07-26	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
6	HS Driehoek Chess Open 2025 (E)	2025-06-14	2025-06-14	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	Vaal Chess Club Blitz Open 31 May 2025 (B)	2025-05-31	2025-05-31	Blitz	Sedibeng (GSV)	7	7	5	Yes	Analysis
8	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Schools Provincial Individual Chess Championship (U11 Boys)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2025 Super 8 (Senior)	2025-09-26	2025-09-26	Rapid	Ekurhuleni (GE)	7	7	3.5	Yes	Analysis
3	Sedibeng Chess Open 06 Sept 2025 (E)	2025-09-06	2025-09-06	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	GDE (D7) Sedibeng East Schools 2025 (U13)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
5	Eureka Chess Open 26 July 2025 (G)	2025-07-26	2025-07-26	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
6	HS Driehoek Chess Open 2025 (E)	2025-06-14	2025-06-14	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	Vaal Chess Club Blitz Open 31 May 2025 (B)	2025-05-31	2025-05-31	Blitz	Sedibeng (GSV)	7	7	5	Yes	Analysis
8	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U11 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis

#	Games	Start				End
1	6	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament Sedibeng Chess Open 06 Sept 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Singwane, M (Melokuhle)				Opponent Nobete, G (Gomolemo)
2	5	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-05-31	rnd 1	type Blitz	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Motaung, N (Ndapewa)
3	3	Tournament 2025 Super 8				Tournament 2025 Gauteng Schools Provincial Individual Chess Championship
		date 2025-09-26	rnd 7	type Rapid	result 0.5	date 2025-09-27	rnd 2	type Standard	result 1
		Opponent Harding, A (Aiden)				Opponent Baloyi, V (Vukosi)

#	Games	Start				End
1	6	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament Sedibeng Chess Open 06 Sept 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Singwane, M (Melokuhle)				Opponent Nobete, G (Gomolemo)
2	5	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament HS Driehoek Chess Open 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-06-14	rnd 1	type Standard	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Kruger, B (Barend)
3	3	Tournament HS Driehoek Chess Open 2025				Tournament Eureka Chess Open 26 July 2025
		date 2025-06-14	rnd 4	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 1
		Opponent Sewdas, R (Riya)				Opponent Mohokare, R (Rorisang)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 3	type Blitz	result 1	date 2025-05-31	rnd 5	type Blitz	result 1
		Opponent Mphanya, N (Naledi)				Opponent Nxuwa, T (Thoriso Lukhanye)
2	1	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 7	type Blitz	result 1	date 2025-05-31	rnd 7	type Blitz	result 1
		Opponent De Jager, C (Christo)				Opponent De Jager, C (Christo)
3	1	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 1	type Blitz	result 1	date 2025-05-31	rnd 1	type Blitz	result 1
		Opponent Motaung, N (Ndapewa)				Opponent Motaung, N (Ndapewa)

#	Games	Start				End
1	6	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament Sedibeng Chess Open 06 Sept 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Singwane, M (Melokuhle)				Opponent Nobete, G (Gomolemo)
2	5	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-05-31	rnd 1	type Blitz	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Motaung, N (Ndapewa)
3	3	Tournament HS Driehoek Chess Open 2025				Tournament Eureka Chess Open 26 July 2025
		date 2025-06-14	rnd 4	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 1
		Opponent Sewdas, R (Riya)				Opponent Mohokare, R (Rorisang)

#	Games	Start				End
1	6	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament Sedibeng Chess Open 06 Sept 2025
		date 2025-08-02	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Singwane, M (Melokuhle)				Opponent Nobete, G (Gomolemo)
2	5	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament HS Driehoek Chess Open 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-06-14	rnd 1	type Standard	result 1
		Opponent Laxa, S (Sithembiso)				Opponent Kruger, B (Barend)
3	3	Tournament HS Driehoek Chess Open 2025				Tournament Eureka Chess Open 26 July 2025
		date 2025-06-14	rnd 4	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 1
		Opponent Sewdas, R (Riya)				Opponent Mohokare, R (Rorisang)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 3	type Blitz	result 1	date 2025-05-31	rnd 5	type Blitz	result 1
		Opponent Mphanya, N (Naledi)				Opponent Nxuwa, T (Thoriso Lukhanye)
2	1	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 7	type Blitz	result 1	date 2025-05-31	rnd 7	type Blitz	result 1
		Opponent De Jager, C (Christo)				Opponent De Jager, C (Christo)
3	1	Tournament Vaal Chess Club Blitz Open 31 May 2025				Tournament Vaal Chess Club Blitz Open 31 May 2025
		date 2025-05-31	rnd 1	type Blitz	result 1	date 2025-05-31	rnd 1	type Blitz	result 1
		Opponent Motaung, N (Ndapewa)				Opponent Motaung, N (Ndapewa)

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	Nobete ,G (Gomolemo)	3	3	425	3	3	425	0	0	0	0	0	0
1	Nobete ,G (Gomolemo)	3	1204.8	1629.8	3	1174.7	1629.8	0	0	0	0	0	0
2	Mehlomakulu ,M (Mpendulo)	2	1	0	2	1	0	0	0	0	0	0	0
2	Mehlomakulu ,M (Mpendulo)	2	1230.7	1230.7	2	1261.1	1230.7	0	0	0	0	0	0
3	Du Toit ,M (Monika)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Du Toit ,M (Monika)	2	1505.6	1080.6	2	1525.1	1080.6	0	0	0	0	0	0
4	Conradie ,LP (Lianro Pierre)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Conradie ,LP (Lianro Pierre)	2	1631.6	1206.6	2	1610	1206.6	0	0	0	0	0	0
5	Mohokare ,R (Rorisang)	2	2	425	1	1	425	0	0	0	1	1	425
5	Mohokare ,R (Rorisang)	2	1161.9	1586.9	1	1157.9	1586.9	0	0	0	1	1200	1586.9
6	Moreki ,J (Junior Tau)	1	1	425	1	1	425	0	0	0	0	0	0
6	Moreki ,J (Junior Tau)	1	1241.9	1666.9	1	1228.3	1666.9	0	0	0	0	0	0
7	Mohlouoa ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mohlouoa ,K (Katleho)	1	1276.9	851.9	1	1285.3	851.9	0	0	0	0	0	0
8	Sewdas ,R (Riya)	1	1	425	1	1	425	0	0	0	0	0	0
8	Sewdas ,R (Riya)	1	1210.8	1635.8	1	1199.9	1635.8	0	0	0	0	0	0
9	Kruger ,B (Barend)	1	1	425	1	1	425	0	0	0	0	0	0
9	Kruger ,B (Barend)	1	1252.4	1677.4	1	1193.6	1677.4	0	0	0	0	0	0
10	Singwane ,M (Melokuhle)	1	1	425	1	1	425	0	0	0	0	0	0
10	Singwane ,M (Melokuhle)	1	1199.8	1624.8	1	1199.7	1624.8	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

Bosman, PE (Pieter)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms