Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bosch, A (Aj)

Chess SA id

1140156739

FIDE id

Date of birth

2014-01-03 (U12)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1066	1052.6	1199.2	1200
Raw rating	1066	1052.6	1198	1200
Weighted rating	1062.7	1041.4	1199.2	1200
Weighted performance	741.3	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	200.7	204.6	166.3	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	-0.1	0
New rating	1066	1052.6	1199.1	1200
Analysis
Rating	1066	1052.6	1199.2	1200
Raw rating	1066	1052.6	1198	1200
Weighted rating	1062.7	1041.4	1199.2
Weighted performance	741.3	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	200.7	204.6	166.3	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	1066	1052.6	1198	1200
New weighted rating	1061.6	1040.9	1199.1	1200
New weighted performance	741	0	0	0
Temp new rating	1066	1052.6	1199.1	1200
Temp new rating +/-	0	0	-0.1	0
Final new rating +/-	0	0	-0.1	0
New rating	1066	1052.6	1199.1	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	8	0	8
	14	14	0
	5	5	0
	0	0	0
	0	0	0
History	27	19	8

Games since
	Main 22	Standard 14		Rapid 8		Blitz 0
Gender	Male
Age group	U12
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	8	2	25	-212.5	1187.6	975.1
Standard	0	0	0	0	0	0
Rapid	8	2	25	-212.5	1187.6	975.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	27	4.5	16.67	-283.3	1173.2	889.8
Standard	19	2.5	13.16	-313.2	1167.1	853.9
Rapid	8	2	25	-212.5	1187.6	975.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1066	1052.6	1198	1200
2025-09-01	1066	1052.6	1198	1200
2025-08-01	1066	1052.6	1198	1200
2025-07-01	1068.9	1052.6	1199.3	1200
2025-06-01	1068.9	1052.6	1195.6	1200
2025-05-01	1075.3	1052.6	1200	1200
2025-04-01	1075.3	1052.6	1200	1200
2025-03-01	1075.3	1052.6	1200	1200
2025-02-01	1072.7	1049.6	1200	1200
2025-01-01	1003.7	969.7	1200	1200
2024-12-01	1003.7	969.7	1200	1200
2024-11-01	1003.7	969.7	1200	1200
2024-10-01	1003.7	969.7	1200	1200
2024-09-01	1003.7	969.7	1200	1200
2024-08-01	1003.7	969.7	1200	1200
2024-07-01	1117.5	1100.7	1200	1200
2024-06-01	1117.5	1100.7	1200	1200
2024-08-01	1117.5	1100.7	1200	1200
2024-04-01	1147.4	1136.3	1200	1200
2024-03-01	1147.4	1136.3	1200	1200
2024-02-01	1147.4	1136.3	1200	1200
2024-01-01	1147.4	1136.3	1200	1200
2023-12-01	1147.4	1136.3	1200	1200
2023-11-01	1147.4	1136.3	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	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	3	1	Yes	Analysis
2	Kwaggasrus Rapids 2025 (Juniors)	2025-05-17	2025-05-17	Rapid	Bojanala Platina (NBR)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Bojanala's Clash Of Schools -Primary Schools 2025 (U11)	2025-07-26	2025-07-26	Rapid	Bojanala Platina (NBR)	5	3	1	Yes	Analysis
2	Kwaggasrus Rapids 2025 (Juniors)	2025-05-17	2025-05-17	Rapid	Bojanala Platina (NBR)	5	5	1	Yes	Analysis
3	Bojanala's Clash Of Schools 2024 (U11)	2024-07-20	2024-07-20	Standard	Bojanala Platina (NBR)	5	5	0	Yes	Analysis
4	Hamakom's Pioneers Of The Board 2024 (Knights)	2024-07-13	2024-07-13	Standard	Bojanala Platina (NBR)	5	5	0.5	Yes	Analysis
5	Bojanala Olienpark's One For The Ages 2024 (Knights)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	4	1	Yes	Analysis
6	Olienpark - 2nd One for the Ages 2023 (U10)	2023-05-13	2023-05-13	Standard	Bojanala Platina (NBR)	5	5	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Selokoma, K (Kagisano)				Opponent Selokoma, K (Kagisano)
2	1	Tournament Kwaggasrus Rapids 2025				Tournament Kwaggasrus Rapids 2025
		date 2025-05-17	rnd 2	type Rapid	result 1	date 2025-05-17	rnd 2	type Rapid	result 1
		Opponent Thomas, R (Reghardt)				Opponent Thomas, R (Reghardt)
3	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 4	type Standard	result 0.5	date 2024-07-13	rnd 4	type Standard	result 0.5
		Opponent Van Tonder, J (Jonathan)				Opponent Van Tonder, J (Jonathan)

#	Games	Start				End
1	1	Tournament Hamakom's Pioneers Of The Board 2024				Tournament Hamakom's Pioneers Of The Board 2024
		date 2024-07-13	rnd 4	type Standard	result 0.5	date 2024-07-13	rnd 4	type Standard	result 0.5
		Opponent Van Tonder, J (Jonathan)				Opponent Van Tonder, J (Jonathan)
2	1	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Bojanala Olienpark's One For The Ages 2024
		date 2024-04-20	rnd 5	type Standard	result 1	date 2024-04-20	rnd 5	type Standard	result 1
		Opponent Zwane, K (Koketso)				Opponent Zwane, K (Koketso)
3	1	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-05-13	rnd 5	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Vorster, S (Salmerie)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Selokoma, K (Kagisano)				Opponent Selokoma, K (Kagisano)
2	1	Tournament Kwaggasrus Rapids 2025				Tournament Kwaggasrus Rapids 2025
		date 2025-05-17	rnd 2	type Rapid	result 1	date 2025-05-17	rnd 2	type Rapid	result 1
		Opponent Thomas, R (Reghardt)				Opponent Thomas, R (Reghardt)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Selokoma, K (Kagisano)				Opponent Selokoma, K (Kagisano)
2	1	Tournament Kwaggasrus Rapids 2025				Tournament Kwaggasrus Rapids 2025
		date 2025-05-17	rnd 2	type Rapid	result 1	date 2025-05-17	rnd 2	type Rapid	result 1
		Opponent Thomas, R (Reghardt)				Opponent Thomas, R (Reghardt)
3	1	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Bojanala Olienpark's One For The Ages 2024
		date 2024-04-20	rnd 5	type Standard	result 1	date 2024-04-20	rnd 5	type Standard	result 1
		Opponent Zwane, K (Koketso)				Opponent Zwane, K (Koketso)

#	Games	Start				End
1	1	Tournament Bojanala Olienpark's One For The Ages 2024				Tournament Bojanala Olienpark's One For The Ages 2024
		date 2024-04-20	rnd 5	type Standard	result 1	date 2024-04-20	rnd 5	type Standard	result 1
		Opponent Zwane, K (Koketso)				Opponent Zwane, K (Koketso)
2	1	Tournament Olienpark - 2nd One for the Ages 2023				Tournament Olienpark - 2nd One for the Ages 2023
		date 2023-05-13	rnd 5	type Standard	result 1	date 2023-05-13	rnd 5	type Standard	result 1
		Opponent Vorster, S (Salmerie)				Opponent Vorster, S (Salmerie)

#	Games	Start				End
1	1	Tournament Bojanala's Clash Of Schools -Primary Schools 2025				Tournament Bojanala's Clash Of Schools -Primary Schools 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Selokoma, K (Kagisano)				Opponent Selokoma, K (Kagisano)
2	1	Tournament Kwaggasrus Rapids 2025				Tournament Kwaggasrus Rapids 2025
		date 2025-05-17	rnd 2	type Rapid	result 1	date 2025-05-17	rnd 2	type Rapid	result 1
		Opponent Thomas, R (Reghardt)				Opponent Thomas, R (Reghardt)

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	Zwane ,K (Koketso)	2	1	0	2	1	0	0	0	0	0	0	0
1	Zwane ,K (Koketso)	2	932.2	932.2	2	913.5	932.2	0	0	0	0	0	0
2	Vosloo ,D (Des-Mari)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Vosloo ,D (Des-Mari)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Van Der Merwe ,N (Nicole)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Van Der Merwe ,N (Nicole)	1	1189.5	764.5	1	1185.5	764.5	0	0	0	0	0	0
4	Terblanche ,B (Bernard)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Terblanche ,B (Bernard)	1	1194	769	1	1195.4	769	0	0	0	0	0	0
5	Mekgwe ,O (Oarabetswe)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mekgwe ,O (Oarabetswe)	1	1234.1	809.1	1	1230.8	809.1	0	0	0	0	0	0
6	Tsitsi ,T (Tshiamo)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Tsitsi ,T (Tshiamo)	1	1024.2	599.2	1	1008.4	599.2	0	0	0	0	0	0
7	Kruger ,N (Nathan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kruger ,N (Nathan)	1	1140.9	715.9	1	1130.8	715.9	0	0	0	0	0	0
8	Truyens ,E (Ernestus Carel Francois)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Truyens ,E (Ernestus Carel Francois)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Potgieter ,S (Sion�)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Potgieter ,S (Sion�)	1	1189.2	764.2	1	1188.5	764.2	0	0	0	0	0	0
10	Bezuidenhout ,D (Declan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bezuidenhout ,D (Declan)	1	1232.7	807.7	1	1242.9	807.7	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

Bosch, A (Aj)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms