Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kgosimotswedi, AM (Aaron Masisi)

Chess SA id

183084909

FIDE id

Date of birth

1983-09-26 (Adult)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-06-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1630	1630	1404.8	1376.6
Raw rating	1630	1630	1404.8	1376.6
Weighted rating	1628.7	1629.1	1404.7	1376.3
Weighted performance	283.8	287.2	0	0
Floor	1130	1130	925.1	909.9
K-factor	28	28	32	32
Min/Max rating change allowed	89.9	89.9	123.9	128.9
Highest rating	1630 2024-02-01	1630 2024-02-01	1449 2019-05-01	1409.9 2019-05-01
Highest raw rating	1630 2024-02-01	1630 2024-02-01	1425.1 2019-06-01	1409.9 2018-02-01
Highest weighted rating	1625.8 2025-08-01	1627.1 2025-08-01	1425.1 2019-06-01	1409.9 2019-05-01
Highest weighted performance	1625.3 2019-03-01	1625.6 2019-03-01	1449 2019-05-01	1344.6 2019-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1630	1630	1404.8	1376.6
Analysis
Rating	1630	1630	1404.8	1376.6
Raw rating	1630	1630	1404.8	1376.6
Weighted rating	1628.7	1629.1	1404.7
Weighted performance	283.8	287.2	0
K-factor	28	28	32	32
Floor	1130	1130	925.1	909.9
Max/Min rating change allowed	89.9	89.9	123.9	128.9
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	1630	1630	1404.8	1376.6
New weighted rating	1629.6	1629.7	1404.8	1376.5
New weighted performance	283.3	286.7	0	0
Temp new rating	1630	1630	1404.8	1376.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1630	1630	1404.8	1376.6
New K-factor	28	28	32	32
New floor	1130	1130	925.1	909.9

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	125	92	15	18

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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	113	56	49.56	-3.8	1474.1	1470.3
Standard	80	39.5	49.38	-5.3	1482.9	1477.6
Rapid	15	7.5	50	0	1517.6	1517.6
Blitz	18	9	50	0	1398.7	1398.7

Date	Main	Standard	Rapid	Blitz
2025-09-30	1630	1630	1404.8	1376.6
2025-09-01	1630	1630	1404.8	1376.6
2025-08-01	1630	1630	1404.8	1376.6
2025-07-01	1630	1630	1404.8	1376.6
2025-06-01	1630	1630	1404.8	1376.6
2025-05-01	1630	1630	1404.8	1376.6
2025-04-01	1630	1630	1404.8	1376.6
2025-03-01	1630	1630	1404.8	1376.6
2025-02-01	1630	1630	1404.8	1376.6
2025-01-01	1630	1630	1404.8	1376.6
2024-12-01	1630	1630	1404.8	1376.6
2024-11-01	1630	1630	1404.8	1376.6
2024-10-01	1630	1630	1404.8	1376.6
2024-09-01	1630	1630	1404.8	1376.6
2024-08-01	1630	1630	1404.8	1376.6
2024-07-01	1630	1630	1404.8	1376.6
2024-06-01	1630	1630	1404.8	1376.6
2024-08-01	1630	1630	1404.8	1376.6
2024-04-01	1630	1630	1404.8	1376.6
2024-03-01	1630	1630	1404.8	1376.6
2024-02-01	1630	1630	1404.8	1376.6
2024-01-01	1630	1630	1404.8	1376.6
2023-12-01	1504.8	1543.4	1399.8	1352
2023-11-01	1504.8	1543.4	1399.8	1352

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	South African Open Chess Championships 2019 (A)	2019-06-15	2019-06-22	Standard	Frances Baard (NCF)	9	9	3.5	Yes	Analysis
2	South African Open Chess Championships 2019 (Rapid)	2019-06-17	2019-06-17	Rapid	Frances Baard (NCF)	5	5	1.5	Yes	Analysis
3	South African Open Chess Championships 2019 (Blitz)	2019-06-19	2019-06-19	Blitz	Frances Baard (NCF)	9	9	4	Yes	Analysis
4	2019 SWVG Arnold Classic (Rapid Open)	2019-05-18	2019-05-19	Rapid	Tshwane (GTP)	10	10	6	Yes	Analysis
5	2019 SWVG Arnold Classic (Blitz Open)	2019-05-19	2019-05-19	Blitz	Tshwane (GTP)	10	9	5	Yes	Analysis
6	Moja Chess Club FIDE Open 2019 (A)	2019-03-21	2019-03-24	Standard	Frances Baard (NCF)	7	7	3	Yes	Analysis
7	2019 Heidelberg Open (A)	2019-02-02	2019-02-02	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
8	JNW Club - Bryanston Open 1 2019 (B)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
9	2018 Gauteng North Open (A)	2018-10-20	2018-10-21	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
10	SAPS National Individual Championship 2018 (Men)	2018-09-12	2018-09-15	Standard	Xhariep (FXT)	9	9	5.5	Yes	Analysis
11	SAPS National Team Championship 2018	2018-09-11	2018-09-11	Standard	Xhariep (FXT)	9	9	5	Yes	Analysis
12	South African Open 2018 (A)	2018-07-07	2018-07-14	Standard	Mangaung (FMB)	11	10	3	Yes	Analysis
13	Primrose Chess Club Open 2018 (A)	2018-06-02	2018-06-02	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
14	2018 Capablanca Swiss (A)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
15	JCC Wits 2018 (A)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
16	2018 Tshwane Registration Open Chess Tournament (B)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament JNW Club - Bryanston Open 1 2019				Tournament JNW Club - Bryanston Open 1 2019
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-01-26	rnd 5	type Standard	result 1
		Opponent Naiker, J (John)				Opponent Brandt, DW (Declan William)
2	4	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 3	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Nxumalo, V (Vuyo)				Opponent Govender, S (Shevern)
3	4	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 2	type Standard	result 0.5	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Magwaza, MG (Mongezi)				Opponent Wolmarans, R (Riekie)

#	Games	Start				End
1	5	Tournament JNW Club - Bryanston Open 1 2019				Tournament JNW Club - Bryanston Open 1 2019
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-01-26	rnd 5	type Standard	result 1
		Opponent Naiker, J (John)				Opponent Brandt, DW (Declan William)
2	4	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 2	type Standard	result 0.5	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Magwaza, MG (Mongezi)				Opponent Wolmarans, R (Riekie)
3	4	Tournament SAPS National Individual Championship 2018				Tournament SAPS National Individual Championship 2018
		date 2018-09-14	rnd 6	type Standard	result 0.5	date 2018-09-15	rnd 9	type Standard	result 1
		Opponent Rabokako, P (Petrus)				Opponent Nkuna, S (Sydwell)

#	Games	Start				End
1	4	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 3	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Nxumalo, V (Vuyo)				Opponent Govender, S (Shevern)
2	1	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-17	rnd 4	type Rapid	result 0.5	date 2019-06-17	rnd 4	type Rapid	result 0.5
		Opponent Tlamama, T (Tshepang)				Opponent Tlamama, T (Tshepang)
3	1	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-17	rnd 2	type Rapid	result 1	date 2019-06-17	rnd 2	type Rapid	result 1
		Opponent Flink, M (Michael)				Opponent Flink, M (Michael)

#	Games	Start				End
1	3	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-19	rnd 6	type Blitz	result 1	date 2019-06-19	rnd 8	type Blitz	result 1
		Opponent Landman, J (Johan)				Opponent Ntsoane, MM (Mm)
2	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 1	type Blitz	result 1	date 2019-05-19	rnd 4	type Blitz	result 1
		Opponent Kushar, T (Tristan)				Opponent Ristic, A (Andrej)
3	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 8	type Blitz	result 1	date 2019-05-19	rnd 9	type Blitz	result 1
		Opponent Mccarthy, E (Eugene)				Opponent Majebe, CF (Civenga Frederick)

#	Games	Start				End
1	5	Tournament JNW Club - Bryanston Open 1 2019				Tournament JNW Club - Bryanston Open 1 2019
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-01-26	rnd 5	type Standard	result 1
		Opponent Naiker, J (John)				Opponent Brandt, DW (Declan William)
2	4	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 3	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Nxumalo, V (Vuyo)				Opponent Govender, S (Shevern)
3	4	Tournament SAPS National Team Championship 2018				Tournament SAPS National Individual Championship 2018
		date 2018-09-11	rnd 9	type Standard	result 1	date 2018-09-13	rnd 3	type Standard	result 1
		Opponent Swartbooi, K (Kelvin)				Opponent Williams, JR (Jacques)

#	Games	Start				End
1	5	Tournament JNW Club - Bryanston Open 1 2019				Tournament JNW Club - Bryanston Open 1 2019
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-01-26	rnd 5	type Standard	result 1
		Opponent Naiker, J (John)				Opponent Brandt, DW (Declan William)
2	4	Tournament SAPS National Team Championship 2018				Tournament SAPS National Individual Championship 2018
		date 2018-09-11	rnd 9	type Standard	result 1	date 2018-09-13	rnd 3	type Standard	result 1
		Opponent Swartbooi, K (Kelvin)				Opponent Williams, JR (Jacques)
3	3	Tournament 2019 Heidelberg Open				Tournament 2019 Heidelberg Open
		date 2019-02-02	rnd 3	type Standard	result 1	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Buthelezi, S (Simphiwe)				Opponent Wolmarans, R (Riekie)

#	Games	Start				End
1	4	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 3	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Nxumalo, V (Vuyo)				Opponent Govender, S (Shevern)
2	1	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-17	rnd 2	type Rapid	result 1	date 2019-06-17	rnd 2	type Rapid	result 1
		Opponent Flink, M (Michael)				Opponent Flink, M (Michael)
3	1	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 9	type Rapid	result 1	date 2019-05-19	rnd 9	type Rapid	result 1
		Opponent Sambo, K (Kingsley)				Opponent Sambo, K (Kingsley)

#	Games	Start				End
1	3	Tournament South African Open Chess Championships 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-19	rnd 6	type Blitz	result 1	date 2019-06-19	rnd 8	type Blitz	result 1
		Opponent Landman, J (Johan)				Opponent Ntsoane, MM (Mm)
2	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 1	type Blitz	result 1	date 2019-05-19	rnd 4	type Blitz	result 1
		Opponent Kushar, T (Tristan)				Opponent Ristic, A (Andrej)
3	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 8	type Blitz	result 1	date 2019-05-19	rnd 9	type Blitz	result 1
		Opponent Mccarthy, E (Eugene)				Opponent Majebe, CF (Civenga Frederick)

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	Mbedza ,R (Richard)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Mbedza ,R (Richard)	3	1908.7	1483.7	3	1905.5	1483.7	0	0	0	0	0	0
2	Flink ,M (Michael)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
2	Flink ,M (Michael)	3	1426.5	1709.8	2	1433.7	1639	1	1527	1851.5	0	0	0
3	Odendaal ,F (Frederick)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
3	Odendaal ,F (Frederick)	3	1949.5	1524.5	1	1996.6	1524.5	1	2026.6	1524.5	1	2023	1524.5
4	Kaweng ,J (John)	2	1	0	2	1	0	0	0	0	0	0	0
4	Kaweng ,J (John)	2	1235.7	1235.7	2	1239.1	1235.7	0	0	0	0	0	0
5	Mathebula ,X (Xolani Cebo)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Mathebula ,X (Xolani Cebo)	2	1606.2	1393.8	2	1593.4	1393.8	0	0	0	0	0	0
6	Buthelezi ,S (Simphiwe)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Buthelezi ,S (Simphiwe)	2	1416.8	1629.2	2	1416.1	1629.2	0	0	0	0	0	0
7	Govender ,S (Shevern)	2	2	425	1	1	425	1	1	425	0	0	0
7	Govender ,S (Shevern)	2	1639.3	2064.3	1	1608.9	2064.3	1	1314.2	2064.3	0	0	0
8	Manaba ,T (Thembani)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Manaba ,T (Thembani)	2	1646	1221	1	1649.9	1221	1	1629.7	1221	0	0	0
9	Baatjies ,TW (Thsepo William)	2	0	-425	1	0	-425	0	0	0	1	0	-425
9	Baatjies ,TW (Thsepo William)	2	1752.8	1327.8	1	1770.7	1327.8	0	0	0	1	1718.7	1327.8
10	Tlamama ,T (Tshepang)	2	1.5	212.5	0	0	0	1	0.5	0	1	1	425
10	Tlamama ,T (Tshepang)	2	1254	1466.5	0	0	0	1	1200	1254	1	1200	1679

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Kgosimotswedi, AM (Aaron Masisi)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms