Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bosman, E (Elri)

Chess SA id

208088664

FIDE id

Date of birth

2008-04-03 (U18)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2021-10-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1168.6	1167.8	1120.8	1200
Raw rating	1168.6	1167.8	1120.8	1200
Weighted rating	1168.6	1167.8	1120.8	1200
Weighted performance	545.8	499.4	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.4	173.6	185.6	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1168.6	1167.8	1120.8	1200
Analysis
Rating	1168.6	1167.8	1120.8	1200
Raw rating	1168.6	1167.8	1120.8	1200
Weighted rating	1168.6	1167.8	1120.8
Weighted performance	545.8	499.4	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	173.4	173.6	185.6	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	1168.6	1167.8	1120.8	1200
New weighted rating	1168.6	1167.8	1120.8	1200
New weighted performance	545.4	499	0	0
Temp new rating	1168.6	1167.8	1120.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1168.6	1167.8	1120.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	15	10	5
History	142	131	11

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	136	49.5	36.4	-115.6	1074.6	959
Standard	131	47.5	36.26	-116.8	1072.3	955.5
Rapid	5	2	40	-85	1133.6	1048.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1168.6	1167.8	1120.8	1200
2025-09-01	1168.6	1167.8	1120.8	1200
2025-08-01	1168.6	1167.8	1120.8	1200
2025-07-01	1168.6	1167.8	1120.8	1200
2025-06-01	1168.6	1167.8	1120.8	1200
2025-05-01	1168.6	1167.8	1120.8	1200
2025-04-01	1168.6	1167.8	1120.8	1200
2025-03-01	1168.6	1167.8	1120.8	1200
2025-02-01	1168.6	1167.8	1120.8	1200
2025-01-01	1168.6	1167.8	1120.8	1200
2024-12-01	1168.6	1167.8	1120.8	1200
2024-11-01	1168.6	1167.8	1120.8	1200
2024-10-01	1168.6	1167.8	1120.8	1200
2024-09-01	1168.6	1167.8	1120.8	1200
2024-08-01	1168.6	1167.8	1120.8	1200
2024-07-01	1168.6	1167.8	1120.8	1200
2024-06-01	1168.6	1167.8	1120.8	1200
2024-08-01	1168.6	1167.8	1120.8	1200
2024-04-01	1168.6	1167.8	1120.8	1200
2024-03-01	1168.6	1167.8	1120.8	1200
2024-02-01	1168.6	1167.8	1120.8	1200
2024-01-01	1168.6	1167.8	1120.8	1200
2023-12-01	1168.6	1167.8	1120.8	1200
2023-11-01	1168.6	1167.8	1120.8	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2021 Gauteng Schools Chess Championships (U13 Girls)	2021-10-16	2021-10-16	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	Ekurhuleni North Schools District Finals 2021 (U13 Girls)	2021-09-11	2021-09-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
3	Ekurhuleni Chess Sochini Trials 2021 (Girls)	2021-09-04	2021-09-04	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	Alberton Chess Club Open 2020 (Ladies+Girls)	2020-02-22	2020-02-22	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	2019 South African Junior Team Championships (U12 Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
6	GJM vs GE Inter Region 2019 (U12C)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
7	2019 Gauteng School League Finals (U11 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	Boksburg Chess Club Open 2019 (C)	2019-07-13	2019-07-13	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
9	2019 RMS Laerskole (U11)	2019-06-01	2019-06-01	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
10	Ekurhuleni North School District Finals 2019 (U11 Girls)	2019-05-11	2019-05-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	Ekurhuleni Trials 2 2019 (U12)	2019-04-27	2019-04-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
12	Ekurhuleni Trials 1 2019 (U12)	2019-03-09	2019-03-09	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
13	Springs Chess Club Open 2019 (C)	2019-02-09	2019-02-09	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
14	South African Junior Team Championships 2018 (U12B Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	0	Yes	Analysis
15	Inter Region GE vs JHB Metro 2018 (U12 Swiss)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
16	Ekurhuleni Grand Prix Open 2018 (C)	2018-09-14	2018-09-15	Standard	Ekurhuleni (GE)	6	5	0	Yes	Analysis
17	Ekurhuleni North District Schools Final 2018 (Primary School Reserves)	2018-08-04	2018-08-04	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
18	Witfield Open 2018 (C)	2018-07-21	2018-07-21	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
19	Boksburg Chess Club Open 2018 (U12)	2018-07-14	2018-07-14	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
20	Ekurhuleni Trials 3 2018 (U12)	2018-06-16	2018-06-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
21	2018 Gauteng Secondary Schools Individual Chess Championships (U11 Girls)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
22	Ekurhuleni North Schools Individuals 2018 (U11 Girls)	2018-05-12	2018-05-12	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
23	Dalpark Open 2018 (C)	2018-05-04	2018-05-05	Standard	Ekurhuleni (GE)	6	6	2	Yes	Analysis
24	Ekurhuleni Trials 2 2018 (U12)	2018-04-21	2018-04-21	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
25	Human Rights Day Open 2018 (C)	2018-03-21	2018-03-21	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
26	Ekurhuleni Trials 1 2018 (U12)	2018-03-10	2018-03-10	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
27	Brakpan Open 2018 (C)	2018-02-24	2018-02-24	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North District Schools Final 2018
		date 2018-08-04	rnd 1	type Standard	result 0.5	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Matthys, H (Hayden)				Opponent Huebsch, K (Kaleigh)
2	4	Tournament 2018 Gauteng Secondary Schools Individual Chess Championships				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-25	rnd 2	type Standard	result 1	date 2018-05-25	rnd 5	type Standard	result 1
		Opponent Madonda, N (Nosihle)				Opponent Pieterse, C (Chioma)
3	3	Tournament Ekurhuleni North Schools District Finals 2021				Tournament Ekurhuleni North Schools District Finals 2021
		date 2021-09-11	rnd 1	type Standard	result 1	date 2021-09-11	rnd 3	type Standard	result 1
		Opponent Fourie, C (Caitlin)				Opponent Sebogoane, T (Thoriso)

#	Games	Start				End
1	4	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North District Schools Final 2018
		date 2018-08-04	rnd 1	type Standard	result 0.5	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Matthys, H (Hayden)				Opponent Huebsch, K (Kaleigh)
2	4	Tournament 2018 Gauteng Secondary Schools Individual Chess Championships				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-25	rnd 2	type Standard	result 1	date 2018-05-25	rnd 5	type Standard	result 1
		Opponent Madonda, N (Nosihle)				Opponent Pieterse, C (Chioma)
3	3	Tournament Ekurhuleni North Schools District Finals 2021				Tournament Ekurhuleni North Schools District Finals 2021
		date 2021-09-11	rnd 1	type Standard	result 1	date 2021-09-11	rnd 3	type Standard	result 1
		Opponent Fourie, C (Caitlin)				Opponent Sebogoane, T (Thoriso)

#	Games	Start				End
1	2	Tournament Ekurhuleni Chess Sochini Trials 2021				Tournament Ekurhuleni Chess Sochini Trials 2021
		date 2021-09-04	rnd 2	type Rapid	result 1	date 2021-09-04	rnd 3	type Rapid	result 1
		Opponent Combrinck, I (Irisna)				Opponent Maritz, S (Sune)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 Gauteng Secondary Schools Individual Chess Championships				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-25	rnd 2	type Standard	result 1	date 2018-05-25	rnd 5	type Standard	result 1
		Opponent Madonda, N (Nosihle)				Opponent Pieterse, C (Chioma)
2	3	Tournament Ekurhuleni North Schools District Finals 2021				Tournament Ekurhuleni North Schools District Finals 2021
		date 2021-09-11	rnd 1	type Standard	result 1	date 2021-09-11	rnd 3	type Standard	result 1
		Opponent Fourie, C (Caitlin)				Opponent Sebogoane, T (Thoriso)
3	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North District Schools Final 2018
		date 2018-08-04	rnd 2	type Standard	result 1	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Thobejane, K (Kabo)				Opponent Huebsch, K (Kaleigh)

#	Games	Start				End
1	4	Tournament 2018 Gauteng Secondary Schools Individual Chess Championships				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-25	rnd 2	type Standard	result 1	date 2018-05-25	rnd 5	type Standard	result 1
		Opponent Madonda, N (Nosihle)				Opponent Pieterse, C (Chioma)
2	3	Tournament Ekurhuleni North Schools District Finals 2021				Tournament Ekurhuleni North Schools District Finals 2021
		date 2021-09-11	rnd 1	type Standard	result 1	date 2021-09-11	rnd 3	type Standard	result 1
		Opponent Fourie, C (Caitlin)				Opponent Sebogoane, T (Thoriso)
3	3	Tournament Ekurhuleni North District Schools Final 2018				Tournament Ekurhuleni North District Schools Final 2018
		date 2018-08-04	rnd 2	type Standard	result 1	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Thobejane, K (Kabo)				Opponent Huebsch, K (Kaleigh)

#	Games	Start				End
1	2	Tournament Ekurhuleni Chess Sochini Trials 2021				Tournament Ekurhuleni Chess Sochini Trials 2021
		date 2021-09-04	rnd 2	type Rapid	result 1	date 2021-09-04	rnd 3	type Rapid	result 1
		Opponent Combrinck, I (Irisna)				Opponent Maritz, S (Sune)

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	Rothmann ,WR (Willem Ruwan)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Rothmann ,WR (Willem Ruwan)	3	928.9	503.9	3	920.8	503.9	0	0	0	0	0	0
2	De Swardt ,C (Chrizander)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	De Swardt ,C (Chrizander)	3	969.6	544.6	3	966.2	544.6	0	0	0	0	0	0
3	Bothma ,L (Liandri)	2	1	0	2	1	0	0	0	0	0	0	0
3	Bothma ,L (Liandri)	2	653.1	653.1	2	648.5	653.1	0	0	0	0	0	0
4	Olivier ,J (Juvandre)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Olivier ,J (Juvandre)	2	877.2	452.2	2	875.2	452.2	0	0	0	0	0	0
5	Chauke ,N (Nosipho)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Chauke ,N (Nosipho)	2	802.2	377.2	2	803	377.2	0	0	0	0	0	0
6	Pieterse ,C (Chioma)	2	2	425	2	2	425	0	0	0	0	0	0
6	Pieterse ,C (Chioma)	2	1235.5	1660.5	2	1241.8	1660.5	0	0	0	0	0	0
7	Van Niekerk ,LA (Lee Ann)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Van Niekerk ,LA (Lee Ann)	2	718.8	293.8	2	719.4	293.8	0	0	0	0	0	0
8	Black ,C (Connor)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Black ,C (Connor)	2	765.1	340.1	2	765.5	340.1	0	0	0	0	0	0
9	Huebsch ,J (Jessica)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Huebsch ,J (Jessica)	2	1147.9	722.9	2	1130.5	722.9	0	0	0	0	0	0
10	Nkuna ,B (Bongile)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Nkuna ,B (Bongile)	2	779.5	354.5	1	500	354.5	1	654.4	354.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Bosman, E (Elri)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms