Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bosch, S (Septimus Bowker)

Chess SA id

1130147069

FIDE id

Date of birth

2013-12-06 (U14)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

36.2

Junior GPX Points

1162.2

Item	Main	Standard	Rapid	Blitz
Rating	1233.1	1227.9	1222.6	1200
Raw rating	1233.1	1227.9	1222.6	1200
Weighted rating	1219.3	1188.3	1218.2	1200
Weighted performance	1205.2	1215.9	1092.3	0
Floor	764.6	741.6	773.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.2	159.4	160.6	165.8
Highest rating	1346.8 2023-01-01	1241.6 2025-06-01	1406.3 2023-01-01	1200 2018-10-01
Highest raw rating	1264.6 2024-09-01	1241.6 2025-06-01	1273.8 2023-02-01	1200 2024-02-01
Highest weighted rating	1264.6 2023-05-01	1241.6 2018-10-01	1273.8 2024-01-01	1200 2018-10-01
Highest weighted performance	1346.8 2025-06-01	1241.6 2020-01-01	1406.3 2023-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1233.1	1227.9	1222.6	1200
Analysis
Rating	1233.1	1227.9	1222.6	1200
Raw rating	1233.1	1227.9	1222.6	1200
Weighted rating	1219.3	1188.3	1218.2
Weighted performance	1205.2	1215.9	1092.3
K-factor	36	36	36	36
Floor	764.6	741.6	773.8	700
Max/Min rating change allowed	158.2	159.4	160.6	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	1233.1	1227.9	1222.6	1200
New weighted rating	1221.4	1193.5	1218.6	1200
New weighted performance	1204.8	1215.5	1091.9	0
Temp new rating	1233.1	1227.9	1222.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1233.1	1227.9	1222.6	1200
New K-factor	36	36	36	36
New floor	764.6	741.6	773.8	700

Item	Main	Standard	Rapid
	0	0	0
	29	19	10
	47	27	20
	24	9	15
	5	0	5
	0	0	0
History	105	55	50

Games since
	Main 76	Standard 46		Rapid 30		Blitz 0
Gender	Male
Age group	U14
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	3780		74		61
Male	2878		57		46
U14	718		14		11
U14 Male	512		9		8
Standard
	RSA		Province		Region
Overall	3710		64		42
Male	2818		48		31
U14	719		14		10
U14 Male	508		8		7
Rapid
	RSA		Province		Region
Overall	1489		52		49
Male	1175		48		45
U14	323		4		4
U14 Male	228		4		4
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	29	13.5	46.55	-29.3	1275.4	1246.1
Standard	19	9	47.37	-22.4	1302.9	1280.5
Rapid	10	4.5	45	-42.5	1223.3	1180.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	105	50.5	48.1	-16.2	1236.2	1220
Standard	55	22.5	40.91	-77.3	1272.2	1195
Rapid	50	28	56	51	1196.5	1247.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1233.1	1227.9	1222.6	1200
2025-09-01	1233.1	1227.9	1222.6	1200
2025-08-01	1222.9	1217.3	1222.6	1200
2025-07-01	1247.2	1241.6	1222.6	1200
2025-06-01	1249	1241.6	1218.4	1200
2025-05-01	1213.2	1180.9	1218.4	1200
2025-04-01	1213.2	1180.9	1218.4	1200
2025-03-01	1199.3	1157	1218.4	1200
2025-02-01	1198.1	1157	1218.4	1200
2025-01-01	1200.2	1157	1228.9	1200
2024-12-01	1230.4	1176.8	1228.9	1200
2024-11-01	1230.4	1176.8	1228.9	1200
2024-10-01	1264.6	1205.2	1228.9	1200
2024-09-01	1264.6	1205.2	1228.9	1200
2024-08-01	1199.9	1169.6	1189.3	1200
2024-07-01	1199.9	1169.6	1189.3	1200
2024-06-01	1199.9	1169.6	1189.3	1200
2024-08-01	1181.7	1134.4	1189.3	1200
2024-04-01	1153.6	1088.4	1189.3	1200
2024-03-01	1160.2	1088.4	1211.6	1200
2024-02-01	1150.2	1088.4	1202.2	1200
2024-01-01	1166.8	1088.4	1240.7	1200
2023-12-01	1166.8	1088.4	1240.7	1200
2023-11-01	1166.8	1088.4	1240.7	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	Free State Closed 2025 (U14 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
2	South African Open 2025 (U14 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
3	Primary School Chess 07 June 2025 (Grade 6A+7A)	2025-06-06	2025-06-06	Rapid	Mangaung (FMB)	5	5	2.5	Yes	Analysis
4	Spartan Bishops Championships Elite 2025 (U14)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	4	2.5	Yes	Analysis
5	Mangaung Metro Chess 7-8 March 2025 (B)	2025-03-07	2025-03-08	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Mangaung Metro Chess 25 January 2025 (B)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Free State Closed 2025 (U14 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
2	South African Open 2025 (U14 Open)	2025-07-03	2025-07-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
3	Primary School Chess 07 June 2025 (Grade 6A+7A)	2025-06-06	2025-06-06	Rapid	Mangaung (FMB)	5	5	2.5	Yes	Analysis
4	Spartan Bishops Championships Elite 2025 (U14)	2025-05-23	2025-05-25	Standard	Frances Baard (NCF)	5	4	2.5	Yes	Analysis
5	Mangaung Metro Chess 7-8 March 2025 (B)	2025-03-07	2025-03-08	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
6	Mangaung Metro Chess 25 January 2025 (B)	2025-01-25	2025-01-25	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
7	Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	2	Yes	Analysis
8	Mangaung Metro Chess 11-12 October 2024 (B)	2024-10-11	2024-10-12	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
9	Mangaung Metro Chess 16-17 August 2024 (B)	2024-08-16	2024-08-17	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
10	Mangaung Metro Chess 3 August 2024 (C)	2024-08-03	2024-08-03	Rapid	Mangaung (FMB)	5	5	4	Yes	Analysis
11	Spartan Bishops Chess Championships 2024 (Senior Pawns)	2024-05-04	2024-05-05	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
12	Mangaung Metro Chess 12-13 April 2024 (C+D)	2024-04-12	2024-04-13	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
13	Mangaung Metro Chess 9 March 2024 (C)	2024-03-09	2024-03-09	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
14	Mangaung Metro Chess 10 February 2024 (C)	2024-02-10	2024-02-10	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
15	Kings & Queens Chess 27 January 2024 (C)	2024-01-27	2024-01-27	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
16	August Primary School Chess Festival 2023 (Grade 4+5 A)	2023-08-04	2023-08-04	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
17	Morris Club Championship 2023	2023-07-28	2023-07-28	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
18	9th Piet van Zyl Chess Festival 2023 (C+D)	2023-05-26	2023-05-27	Standard	Mangaung (FMB)	5	4	0	Yes	Analysis
19	Inter Regional Chess Championship 2023 (U12)	2023-05-19	2023-05-20	Standard	Mangaung (FMB)	5	5	1.5	Yes	Analysis
20	Kings & Queens Chess 21 January 2023 (D)	2023-01-21	2023-01-21	Rapid	Mangaung (FMB)	5	5	4.5	Yes	Analysis
21	Courteney Page Chess Festival 2022 (D)	2022-10-15	2022-10-15	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament Spartan Bishops Championships Elite 2025				Tournament Primary School Chess 07 June 2025
		date 2025-05-24	rnd 2	type Standard	result 0.5	date 2025-06-06	rnd 3	type Rapid	result 1
		Opponent Steyn, W (Willem)				Opponent Motlhaolwa, G (Gopolang)
2	6	Tournament Courteney Page Chess Festival 2022				Tournament Kings & Queens Chess 21 January 2023
		date 2022-10-15	rnd 5	type Rapid	result 1	date 2023-01-21	rnd 5	type Rapid	result 1
		Opponent Monaheng, P (Poloko)				Opponent Herselman, J (Jayden Daniel Ferdinand)
3	4	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 16-17 August 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-16	rnd 1	type Standard	result 1
		Opponent Vilakazi, S (Simangele)				Opponent Mokhachane, K (Kgalalelo)

#	Games	Start				End
1	3	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-24	rnd 2	type Standard	result 0.5	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Steyn, W (Willem)				Opponent Kongolo, T (Tim Jadot)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-14	rnd 1	type Standard	result 0.5	date 2025-08-14	rnd 2	type Standard	result 1
		Opponent Mokhathi, O (Oratile)				Opponent Moshodi, R (Rethabile)
3	2	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-17	rnd 3	type Standard	result 1	date 2024-12-17	rnd 4	type Standard	result 1
		Opponent Chidi, L (Lebotsa)				Opponent Moller, C (Connor)

#	Games	Start				End
1	6	Tournament Courteney Page Chess Festival 2022				Tournament Kings & Queens Chess 21 January 2023
		date 2022-10-15	rnd 5	type Rapid	result 1	date 2023-01-21	rnd 5	type Rapid	result 1
		Opponent Monaheng, P (Poloko)				Opponent Herselman, J (Jayden Daniel Ferdinand)
2	4	Tournament Mangaung Metro Chess 25 January 2025				Tournament Primary School Chess 07 June 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-06-06	rnd 3	type Rapid	result 1
		Opponent Molatlhoe, C (Calib)				Opponent Motlhaolwa, G (Gopolang)
3	4	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 25 January 2025
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Vilakazi, S (Simangele)				Opponent Sealoma, T (Tshegofatso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 16-17 August 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-16	rnd 1	type Standard	result 1
		Opponent Vilakazi, S (Simangele)				Opponent Mokhachane, K (Kgalalelo)
2	4	Tournament August Primary School Chess Festival 2023				Tournament Kings & Queens Chess 27 January 2024
		date 2023-08-04	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 2	type Rapid	result 1
		Opponent Mabetha, N (Nonhle)				Opponent Du Toit, C (Calem)
3	3	Tournament Mangaung Metro Chess 9 March 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-03-09	rnd 5	type Rapid	result 1	date 2024-04-12	rnd 2	type Standard	result 1
		Opponent Fourie, R (Rosa Hermiena)				Opponent Du Toit, J (Jonaldro)

#	Games	Start				End
1	2	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-24	rnd 3	type Standard	result 1	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Nkosi, H (Hlelo)				Opponent Kongolo, T (Tim Jadot)
2	2	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-17	rnd 3	type Standard	result 1	date 2024-12-17	rnd 4	type Standard	result 1
		Opponent Chidi, L (Lebotsa)				Opponent Moller, C (Connor)
3	2	Tournament Mangaung Metro Chess 16-17 August 2024				Tournament Mangaung Metro Chess 16-17 August 2024
		date 2024-08-17	rnd 3	type Standard	result 1	date 2024-08-17	rnd 4	type Standard	result 1
		Opponent Thakaso, Z (Ziko)				Opponent Van Wyk, P (Petrus Gerhardus)

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 3 August 2024				Tournament Mangaung Metro Chess 25 January 2025
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2025-01-25	rnd 1	type Rapid	result 1
		Opponent Vilakazi, S (Simangele)				Opponent Sealoma, T (Tshegofatso)
2	4	Tournament August Primary School Chess Festival 2023				Tournament Kings & Queens Chess 27 January 2024
		date 2023-08-04	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 2	type Rapid	result 1
		Opponent Mabetha, N (Nonhle)				Opponent Du Toit, C (Calem)
3	3	Tournament Kings & Queens Chess 21 January 2023				Tournament Kings & Queens Chess 21 January 2023
		date 2023-01-21	rnd 3	type Rapid	result 1	date 2023-01-21	rnd 5	type Rapid	result 1
		Opponent Strydom, L (Luan)				Opponent Herselman, J (Jayden Daniel Ferdinand)

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	Moletsane ,T (Tshimologo)	5	2	-85	2	1	0	3	1	-141.7	0	0	0
1	Moletsane ,T (Tshimologo)	5	1142.5	1057.5	2	1120.8	1142.5	3	1144.1	1000.8	0	0	0
2	Herselman ,J (Jayden Daniel Ferdinand)	4	1	-212.5	1	0	-425	3	1	-141.7	0	0	0
2	Herselman ,J (Jayden Daniel Ferdinand)	4	1216.5	1004	1	1198.3	791.5	3	1215	1074.8	0	0	0
3	Bothma ,J (Johannes)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Bothma ,J (Johannes)	3	1253.9	828.9	2	1261.2	828.9	1	1200	828.9	0	0	0
4	Van Wyk ,P (Petrus Gerhardus)	3	2	141.7	2	1	0	1	1	425	0	0	0
4	Van Wyk ,P (Petrus Gerhardus)	3	1195.6	1337.2	2	1202.4	1195.6	1	1200	1620.6	0	0	0
5	Sealoma ,T (Tshegofatso)	3	2	141.7	1	0	-425	2	2	425	0	0	0
5	Sealoma ,T (Tshegofatso)	3	1271.8	1413.5	1	1240.4	846.8	2	1248.4	1696.8	0	0	0
6	Chen ,L (Louis)	3	0	-425	1	0	-425	2	0	-425	0	0	0
6	Chen ,L (Louis)	3	1229	804	1	1247.7	804	2	1215	804	0	0	0
7	Maritz ,J (Jandre)	3	0	-425	1	0	-425	2	0	-425	0	0	0
7	Maritz ,J (Jandre)	3	1234.3	809.3	1	1191.2	809.3	2	1262.1	809.3	0	0	0
8	Jacobus ,A (Altavio)	2	2	425	2	2	425	0	0	0	0	0	0
8	Jacobus ,A (Altavio)	2	1182.8	1607.8	2	1182.2	1607.8	0	0	0	0	0	0
9	Nwafor ,N (Nneka)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Nwafor ,N (Nneka)	2	1168.7	743.7	1	1172.6	743.7	1	1091.3	743.7	0	0	0
10	Snell ,T (Tessa)	2	0.5	-212.5	1	0	-425	1	0.5	0	0	0	0
10	Snell ,T (Tessa)	2	1206.8	994.2	1	1188.8	781.8	1	1200	1206.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Bosch, S (Septimus Bowker)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms