Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bosman, S (Struan)

Chess SA id

1110191586

FIDE id

Date of birth

2011-08-09 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1163.2	1157.5	1200	1200
Raw rating	1163.2	1157.5	1200	1200
Weighted rating	1161	1154.9	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.7	176.2	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1163.2	1157.5	1200	1200
Analysis
Rating	1163.2	1157.5	1200	1200
Raw rating	1163.2	1157.5	1200	1200
Weighted rating	1161	1154.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	174.7	176.2	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	1163.2	1157.5	1200	1200
New weighted rating	1160.9	1154.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1163.2	1157.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1163.2	1157.5	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	7	7
	15	15
	0	0
	0	0
	0	0
History	22	22

Games since
	Main 22	Standard 22		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	7	2	28.57	-182.1	1194.9	1012.7
Standard	7	2	28.57	-182.1	1194.9	1012.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	22	7	31.82	-154.5	1216.3	1061.7
Standard	22	7	31.82	-154.5	1216.3	1061.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1163.2	1157.5	1200	1200
2025-09-01	1163.2	1157.5	1200	1200
2025-08-01	1163.2	1157.5	1200	1200
2025-07-01	1163.2	1157.5	1200	1200
2025-06-01	1163.2	1157.5	1200	1200
2025-05-01	1163.2	1157.5	1200	1200
2025-04-01	1162.8	1157	1200	1200
2025-03-01	1163.6	1158	1200	1200
2025-02-01	1165.2	1159.8	1200	1200
2025-01-01	1154	1147	1200	1200
2024-12-01	1154	1147	1200	1200
2024-11-01	1154	1147	1200	1200
2024-10-01	1154	1147	1200	1200
2024-09-01	1154	1147	1200	1200
2024-08-01	1154	1147	1200	1200
2024-07-01	1154	1147	1200	1200
2024-06-01	1154	1147	1200	1200
2024-08-01	1159.7	1152.8	1200	1200
2024-04-01	1159.7	1152.8	1200	1200
2024-03-01	1160.3	1153.9	1200	1200
2024-02-01	1160.3	1153.9	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	JMC Crawford Ruimsig 2025 (D)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	3	1	Yes	Analysis
2	JMC Kick Off 2025 (D)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC Crawford Ruimsig 2025 (D)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	3	1	Yes	Analysis
2	JMC Kick Off 2025 (D)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
3	JMC Crawford International Sandton 2024 (D)	2024-05-11	2024-05-11	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	JNW Open - Classic - Crawford 2024 (C)	2024-03-09	2024-03-09	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
5	JMC Kick Off Tournament 2024 (D)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Mathibe, K (Koketso)
2	1	Tournament JMC Kick Off 2025				Tournament JMC Kick Off 2025
		date 2025-02-02	rnd 3	type Standard	result 1	date 2025-02-02	rnd 3	type Standard	result 1
		Opponent Mochan, L (Lucien)				Opponent Mochan, L (Lucien)
3	1	Tournament JMC Crawford International Sandton 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-05-11	rnd 5	type Standard	result 1
		Opponent Mahale, A (Agastya)				Opponent Mahale, A (Agastya)

#	Games	Start				End
1	1	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Mathibe, K (Koketso)
2	1	Tournament JMC Kick Off 2025				Tournament JMC Kick Off 2025
		date 2025-02-02	rnd 3	type Standard	result 1	date 2025-02-02	rnd 3	type Standard	result 1
		Opponent Mochan, L (Lucien)				Opponent Mochan, L (Lucien)
3	1	Tournament JMC Crawford International Sandton 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-05-11	rnd 5	type Standard	result 1
		Opponent Mahale, A (Agastya)				Opponent Mahale, A (Agastya)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Mathibe, K (Koketso)
2	1	Tournament JMC Kick Off 2025				Tournament JMC Kick Off 2025
		date 2025-02-02	rnd 3	type Standard	result 1	date 2025-02-02	rnd 3	type Standard	result 1
		Opponent Mochan, L (Lucien)				Opponent Mochan, L (Lucien)
3	1	Tournament JMC Crawford International Sandton 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-05-11	rnd 5	type Standard	result 1
		Opponent Mahale, A (Agastya)				Opponent Mahale, A (Agastya)

#	Games	Start				End
1	1	Tournament JMC Crawford Ruimsig 2025				Tournament JMC Crawford Ruimsig 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Mathibe, K (Koketso)				Opponent Mathibe, K (Koketso)
2	1	Tournament JMC Kick Off 2025				Tournament JMC Kick Off 2025
		date 2025-02-02	rnd 3	type Standard	result 1	date 2025-02-02	rnd 3	type Standard	result 1
		Opponent Mochan, L (Lucien)				Opponent Mochan, L (Lucien)
3	1	Tournament JMC Crawford International Sandton 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-05-11	rnd 5	type Standard	result 1
		Opponent Mahale, A (Agastya)				Opponent Mahale, A (Agastya)

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	Ngubane ,L (Lesedi)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Ngubane ,L (Lesedi)	2	1169.6	744.6	2	1164.2	744.6	0	0	0	0	0	0
2	Mochan ,L (Lucien)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mochan ,L (Lucien)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Tshabalala ,H (Happy)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Tshabalala ,H (Happy)	1	1063.1	638.1	1	1063.3	638.1	0	0	0	0	0	0
4	Boshoff ,M (Milah)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Boshoff ,M (Milah)	1	1258.7	833.7	1	1251	833.7	0	0	0	0	0	0
5	Tayob ,M (Muhammed)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Tayob ,M (Muhammed)	1	1227.2	802.2	1	1226.3	802.2	0	0	0	0	0	0
6	Upadhyay ,S (Savya)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Upadhyay ,S (Savya)	1	1267.9	842.9	1	1246.7	842.9	0	0	0	0	0	0
7	Sibanda ,M (Marlvin)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Sibanda ,M (Marlvin)	1	1254.9	829.9	1	1245.4	829.9	0	0	0	0	0	0
8	Mkhasibe ,NZ (Nobuhle Zandile)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mkhasibe ,NZ (Nobuhle Zandile)	1	1297.2	872.2	1	1302	872.2	0	0	0	0	0	0
9	Gadney ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Gadney ,L (Liam)	1	1202.1	777.1	1	1212.3	777.1	0	0	0	0	0	0
10	Van Heerden ,A (Alexander)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Van Heerden ,A (Alexander)	1	1266.5	841.5	1	1268.5	841.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Bosman, S (Struan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms