Chess South Africa Ratings Database

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Personal

Bosch, E (Evan)

Chess SA id

1170301880

FIDE id

Date of birth

2017-09-15 (U10)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-10-11

Personal details last changed

1900-01-01

Junior GPX Games

47.7

Junior GPX Points

1165.7

Item	Main	Standard	Rapid	Blitz
Rating	1226.6	1227.2	1182.7	1200
Raw rating	1190.2	1172.4	1182.7	1200
Weighted rating	1226.6	1227.2	1177.3	1200
Weighted performance	994	1023.5	0	0
Floor	861.9	842.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.1	172.5	170	165.8
Highest rating	1361.9 2025-06-01	1342.6 2025-06-01	1200 2024-05-01	1200 2024-05-01
Highest raw rating	1361.9 2025-06-01	1342.6 2025-06-01	1200 2024-05-01	1200 2024-05-01
Highest weighted rating	1361.9 2024-11-01	1342.6 2024-11-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1361.9 2025-06-01	1342.6 2024-08-01	1200 2024-05-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.5	-3.1	0	0
New rating	1225.1	1224.1	1182.7	1200
Analysis
Rating	1226.6	1227.2	1182.7	1200
Raw rating	1190.2	1172.4	1182.7	1200
Weighted rating	1226.6	1227.2	1177.3
Weighted performance	994	1023.5	0
K-factor	36	36	36	36
Floor	861.9	842.6	700	700
Max/Min rating change allowed	168.1	172.5	170	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	1190.2	1172.4	1182.7	1200
New weighted rating	1225.1	1224.1	1177.4	1200
New weighted performance	988.1	1017.3	0	0
Temp new rating	1225.1	1224.1	1182.7	1200
Temp new rating +/-	-1.5	-3.1	0	0
Final new rating +/-	-1.5	-3.1	0	0
New rating	1225.1	1224.1	1182.7	1200
New K-factor	36	36	36	36
New floor	861.9	842.6	700	700

Item	Main	Standard	Rapid
	0	0	0
	41	32	9
	30	25	5
	0	0	0
	0	0	0
	0	0	0
History	71	57	14

Games since
	Main 71	Standard 57		Rapid 14		Blitz 0
Gender	Male
Age group	U10
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	3922		77		60
Male	2958		63		48
U10	357		2		2
U10 Male	272		2		2
Standard
	RSA		Province		Region
Overall	3853		65		43
Male	2917		49		32
U10	347		1		1
U10 Male	270		1		1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	41	18.5	45.12	-41.5	1277.4	1235.9
Standard	32	13.5	42.19	-66.4	1303.2	1236.8
Rapid	9	5	55.56	47.2	1185.5	1232.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	71	30.5	42.96	-59.9	1246.4	1186.5
Standard	57	24	42.11	-67.1	1260.3	1193.2
Rapid	14	6.5	46.43	-30.4	1189.8	1159.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1190.2	1172.4	1182.7	1200
2025-09-30	1247.7	1240.4	1182.7	1200
2025-09-01	1247.7	1240.4	1182.7	1200
2025-08-01	1294.7	1291.7	1182.7	1200
2025-07-01	1345.2	1342.6	1182.7	1200
2025-06-01	1361.9	1342.6	1179.2	1200
2025-05-01	1255.2	1255.1	1179.2	1200
2025-04-01	1232.8	1237.1	1179.2	1200
2025-03-01	1232.8	1237.1	1179.2	1200
2025-02-01	1174.5	1181.4	1178.8	1200
2025-01-01	1153.3	1170.8	1147.6	1200
2024-12-01	1147.3	1173.3	1147.6	1200
2024-11-01	1147.3	1173.3	1147.6	1200
2024-10-01	1191.3	1217.2	1147.6	1200
2024-09-01	1191.3	1217.2	1147.6	1200
2024-08-01	1150.3	1141.6	1200	1200
2024-07-01	1150.3	1141.6	1200	1200
2024-09-01	1150.3	1141.6	1200	1200
2024-05-01	1158.3	1150.8	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	11th Piet van Zyl Chess Festival 2025 (B)	2025-10-10	2025-10-11	Standard	Mangaung (FMB)	5	4	0	Yes	Analysis
2	Free State Closed 2025 (U10 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	4	1	Yes	Analysis
3	South African Open 2025 (U10 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
4	Primary School Chess 07 June 2025 (Grade 2+3)	2025-06-06	2025-06-06	Rapid	Mangaung (FMB)	5	4	2	Yes	Analysis
5	Spartan Bishops Championships Elite 2025 (U10)	2025-05-23	2025-05-23	Standard	Frances Baard (NCF)	5	5	4	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
7	Mangaung Metro Chess 7-8 February 2025 (C)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
8	Mangaung Metro Chess 25 January 2025 (C)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	11th Piet van Zyl Chess Festival 2025 (B)	2025-10-10	2025-10-11	Standard	Mangaung (FMB)	5	4	0	Yes	Analysis
2	Free State Closed 2025 (U10 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	4	1	Yes	Analysis
3	South African Open 2025 (U10 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
4	Primary School Chess 07 June 2025 (Grade 2+3)	2025-06-06	2025-06-06	Rapid	Mangaung (FMB)	5	4	2	Yes	Analysis
5	Spartan Bishops Championships Elite 2025 (U10)	2025-05-23	2025-05-23	Standard	Frances Baard (NCF)	5	5	4	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
7	Mangaung Metro Chess 7-8 February 2025 (C)	2025-02-07	2025-02-08	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
8	Mangaung Metro Chess 25 January 2025 (C)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
9	Mzansi Interprovincial Youth Chess Championships 2024 (U8 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	2	Yes	Analysis
10	Mangaung Metro Chess 11-12 October 2024 (C)	2024-10-11	2024-10-12	Standard	Mangaung (FMB)	5	5	1.5	Yes	Analysis
11	Mangaung Metro Chess 16-17 August 2024 (D)	2024-08-16	2024-08-17	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
12	Mangaung Metro Chess 3 August 2024 (C)	2024-08-03	2024-08-03	Rapid	Mangaung (FMB)	5	5	1.5	Yes	Analysis
13	Spartan Bishops Chess Championships 2024 (Big Pawns)	2024-05-04	2024-05-05	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
14	Mangaung Metro Chess 12-13 April 2024 (C+D)	2024-04-12	2024-04-13	Standard	Mangaung (FMB)	5	4	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 5	type Standard	result 1
		Opponent Kruger, A (Abraham Jacobus)				Opponent Weidemann, K (Kean)
2	3	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 7-8 February 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Thole, V (Vulamazulu)				Opponent Du Toit, R (Reneiro)
3	2	Tournament Primary School Chess 07 June 2025				Tournament Primary School Chess 07 June 2025
		date 2025-06-06	rnd 3	type Rapid	result 1	date 2025-06-06	rnd 4	type Rapid	result 1
		Opponent Church, H (Henco)				Opponent Loots, C (Conroy Gandini)

#	Games	Start				End
1	4	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 5	type Standard	result 1
		Opponent Kruger, A (Abraham Jacobus)				Opponent Weidemann, K (Kean)
2	3	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 7-8 February 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Thole, V (Vulamazulu)				Opponent Du Toit, R (Reneiro)
3	3	Tournament Spartan Bishops Chess Championships 2024				Tournament Mangaung Metro Chess 16-17 August 2024
		date 2024-05-05	rnd 5	type Standard	result 1	date 2024-08-16	rnd 2	type Standard	result 1
		Opponent Motsoane, T (Thoko)				Opponent Potgieter, D (Divan)

#	Games	Start				End
1	2	Tournament Primary School Chess 07 June 2025				Tournament Primary School Chess 07 June 2025
		date 2025-06-06	rnd 3	type Rapid	result 1	date 2025-06-06	rnd 4	type Rapid	result 1
		Opponent Church, H (Henco)				Opponent Loots, C (Conroy Gandini)
2	2	Tournament Mangaung Metro Chess 25 January 2025				Tournament Mangaung Metro Chess 25 January 2025
		date 2025-01-25	rnd 3	type Rapid	result 1	date 2025-01-25	rnd 4	type Rapid	result 1
		Opponent Du Toit, R (Reneiro)				Opponent Strydom, L (Luan)
3	1	Tournament Mangaung Metro Chess 25 January 2025				Tournament Mangaung Metro Chess 25 January 2025
		date 2025-01-25	rnd 1	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Fitz, S (Skylar)				Opponent Fitz, S (Skylar)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 5	type Standard	result 1
		Opponent Kruger, A (Abraham Jacobus)				Opponent Weidemann, K (Kean)
2	3	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 7-8 February 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Thole, V (Vulamazulu)				Opponent Du Toit, R (Reneiro)
3	2	Tournament Primary School Chess 07 June 2025				Tournament Primary School Chess 07 June 2025
		date 2025-06-06	rnd 3	type Rapid	result 1	date 2025-06-06	rnd 4	type Rapid	result 1
		Opponent Church, H (Henco)				Opponent Loots, C (Conroy Gandini)

#	Games	Start				End
1	4	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 5	type Standard	result 1
		Opponent Kruger, A (Abraham Jacobus)				Opponent Weidemann, K (Kean)
2	3	Tournament Mangaung Metro Chess 7-8 February 2025				Tournament Mangaung Metro Chess 7-8 February 2025
		date 2025-02-08	rnd 3	type Standard	result 1	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Thole, V (Vulamazulu)				Opponent Du Toit, R (Reneiro)
3	3	Tournament Spartan Bishops Chess Championships 2024				Tournament Mangaung Metro Chess 16-17 August 2024
		date 2024-05-05	rnd 5	type Standard	result 1	date 2024-08-16	rnd 2	type Standard	result 1
		Opponent Motsoane, T (Thoko)				Opponent Potgieter, D (Divan)

#	Games	Start				End
1	2	Tournament Primary School Chess 07 June 2025				Tournament Primary School Chess 07 June 2025
		date 2025-06-06	rnd 3	type Rapid	result 1	date 2025-06-06	rnd 4	type Rapid	result 1
		Opponent Church, H (Henco)				Opponent Loots, C (Conroy Gandini)
2	2	Tournament Mangaung Metro Chess 25 January 2025				Tournament Mangaung Metro Chess 25 January 2025
		date 2025-01-25	rnd 3	type Rapid	result 1	date 2025-01-25	rnd 4	type Rapid	result 1
		Opponent Du Toit, R (Reneiro)				Opponent Strydom, L (Luan)
3	1	Tournament Mangaung Metro Chess 25 January 2025				Tournament Mangaung Metro Chess 25 January 2025
		date 2025-01-25	rnd 1	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Fitz, S (Skylar)				Opponent Fitz, S (Skylar)

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	Fourie ,E (Ethan)	4	2	0	3	2	141.7	1	0	-425	0	0	0
1	Fourie ,E (Ethan)	4	1201.8	1201.8	3	1209	1343.5	1	1200	776.8	0	0	0
2	Kruger ,A (Abraham Jacobus)	3	3	425	3	3	425	0	0	0	0	0	0
2	Kruger ,A (Abraham Jacobus)	3	1210.9	1635.9	3	1199.4	1635.9	0	0	0	0	0	0
3	Du Toit ,R (Reneiro)	3	2	141.7	2	1	0	1	1	425	0	0	0
3	Du Toit ,R (Reneiro)	3	1194.8	1336.4	2	1200.4	1194.8	1	1200	1619.8	0	0	0
4	Botha ,E (Erasmus Albertus)	2	2	425	2	2	425	0	0	0	0	0	0
4	Botha ,E (Erasmus Albertus)	2	1241.9	1666.9	2	1241.7	1666.9	0	0	0	0	0	0
5	Thole ,V (Vulamazulu)	2	1	0	2	1	0	0	0	0	0	0	0
5	Thole ,V (Vulamazulu)	2	1200.2	1200.2	2	1200.6	1200.2	0	0	0	0	0	0
6	Tenzer ,A (Alexander)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Tenzer ,A (Alexander)	1	1420	995	1	1433.3	995	0	0	0	0	0	0
7	Motsoane ,T (Thoko)	1	1	425	1	1	425	0	0	0	0	0	0
7	Motsoane ,T (Thoko)	1	1146.2	1571.2	1	1143.5	1571.2	0	0	0	0	0	0
8	Wittes ,N (Nkosinathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Wittes ,N (Nkosinathi)	1	1245.3	820.3	1	1220.6	820.3	0	0	0	0	0	0
9	Simao ,R (Raul)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Simao ,R (Raul)	1	1306.8	881.8	1	1299.6	881.8	0	0	0	0	0	0
10	Wessels ,H (Hanno)	1	1	425	1	1	425	0	0	0	0	0	0
10	Wessels ,H (Hanno)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Bosch, E (Evan)

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