Chess South Africa Ratings Database

PLAYER PAGE

Personal

Boyisi, A (Aaron)

Chess SA id

182003312

FIDE id

Date of birth

1982-05-24 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1659.3	1669.5	1718.5	1721.9
Raw rating	1659.3	1669.5	1718.5	1721.9
Weighted rating	1659.3	1669.5	1718.5	1721.9
Weighted performance	388.9	389.1	0	0
Floor	1265.5	1265.5	1265.5	1265.5
K-factor	28	28	28	28
Min/Max rating change allowed	86.2	84.9	79.2	78.8
Highest rating	1765.5 2018-01-01	1765.5 2018-01-01	1765.5 2018-05-01	1765.5 2018-02-01
Highest raw rating	1765.5 2018-01-01	1765.5 2018-01-01	1765.5 2018-02-01	1765.5 2018-02-01
Highest weighted rating	1765.5 2018-01-01	1765.5 2018-01-01	1765.5 2018-05-01	1765.5 2018-02-01
Highest weighted performance	1582.2 2019-09-01	1623.9 2019-01-01	1258.9 2019-01-01	1547.9 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1659.3	1669.5	1718.5	1721.9
Analysis
Rating	1659.3	1669.5	1718.5	1721.9
Raw rating	1659.3	1669.5	1718.5	1721.9
Weighted rating	1659.3	1669.5	1718.5
Weighted performance	388.9	389.1	0
K-factor	28	28	28	28
Floor	1265.5	1265.5	1265.5	1265.5
Max/Min rating change allowed	86.2	84.9	79.2	78.8
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	1659.3	1669.5	1718.5	1721.9
New weighted rating	1659.3	1669.5	1718.5	1721.9
New weighted performance	388.3	388.6	0	0
Temp new rating	1659.3	1669.5	1718.5	1721.9
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1659.3	1669.5	1718.5	1721.9
New K-factor	28	28	28	28
New floor	1265.5	1265.5	1265.5	1265.5

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	272	251	5	16

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	63	35	55.56	47.2	1549.5	1596.8
Standard	51	33.5	65.69	133.3	1501.1	1634.4
Rapid	5	1.5	30	-170	1454.4	1284.4
Blitz	7	0	0	-425	1970.6	1545.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1659.3	1669.5	1718.5	1721.9
2025-09-01	1659.3	1669.5	1718.5	1721.9
2025-08-01	1659.3	1669.5	1718.5	1721.9
2025-07-01	1659.3	1669.5	1718.5	1721.9
2025-06-01	1659.3	1669.5	1718.5	1721.9
2025-05-01	1659.3	1669.5	1718.5	1721.9
2025-04-01	1659.3	1669.5	1718.5	1721.9
2025-03-01	1659.3	1669.5	1718.5	1721.9
2025-02-01	1659.3	1669.5	1718.5	1721.9
2025-01-01	1659.3	1669.5	1718.5	1721.9
2024-12-01	1659.3	1669.5	1718.5	1721.9
2024-11-01	1659.3	1669.5	1718.5	1721.9
2024-10-01	1659.3	1669.5	1718.5	1721.9
2024-09-01	1659.3	1669.5	1718.5	1721.9
2024-08-01	1659.3	1669.5	1718.5	1721.9
2024-07-01	1659.3	1669.5	1718.5	1721.9
2024-06-01	1659.3	1669.5	1718.5	1721.9
2024-08-01	1659.3	1669.5	1718.5	1721.9
2024-04-01	1659.3	1669.5	1718.5	1721.9
2024-03-01	1659.3	1669.5	1718.5	1721.9
2024-02-01	1659.3	1669.5	1718.5	1721.9
2024-01-01	1659.3	1669.5	1718.5	1721.9
2023-12-01	1659.3	1669.5	1718.5	1719.2
2023-11-01	1659.3	1669.5	1718.5	1719.2

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	2020 Tuks Open (A)	2020-02-22	2020-02-22	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2019 National Club Chess Championships (A)	2019-09-27	2019-09-29	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
3	2019 Western Province League (C)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	11	8	Yes	Analysis
4	Crossroads Open Chess Championship 2019 (Presige)	2019-04-27	2019-04-28	Standard	Cape Town (WCT)	6	2	1	Yes	Analysis
5	Cape of Good Hope Open 2019 (Prestige)	2019-01-25	2019-01-28	Standard	Cape Town (WCT)	6	5	4	Yes	Analysis
6	Drakenstein Dragons Rapid 2019 (Open)	2019-01-19	2019-01-19	Rapid	Cape Winelands (WCW)	6	5	1.5	Yes	Analysis
7	2018 Western Province League (D)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	9	9	Yes	Analysis
8	Paul Roos Open Championship 2018 (A)	2018-09-21	2018-09-23	Standard	Cape Winelands (WCW)	6	5	2.5	Yes	Analysis
9	Crossroads Open Chess Championship 2018 (Elite)	2018-04-27	2018-04-29	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
10	WP Team Blitz 2018 (A)	2018-02-17	2018-02-17	Blitz	Cape Town (WCT)	7	7	0	Yes	Analysis
11	2018 Cape of Good Hope Open Chess Championships (Prestige)	2018-01-26	2018-01-28	Standard	Cape Town (WCT)	6	3	1	Yes	Analysis

#	Games	Start				End
1	12	Tournament Crossroads Open Chess Championship 2018				Tournament Paul Roos Open Championship 2018
		date 2018-04-29	rnd 6	type Standard	result 0.5	date 2018-09-22	rnd 2	type Standard	result 0.5
		Opponent Milford, EP (Eugene)				Opponent Wright, A (Adrian)
2	8	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-10	rnd 5	type Standard	result 1	date 2019-09-27	rnd 1	type Standard	result 1
		Opponent Olkers, C (Caitlyn)				Opponent Khuphwathea, PC (Paul)
3	6	Tournament Cape of Good Hope Open 2019				Tournament 2019 Western Province League
		date 2019-01-27	rnd 4	type Standard	result 1	date 2019-07-27	rnd 1	type Standard	result 1
		Opponent Kedama, S (Sandiso)				Opponent Maytham, P (Phillip)

#	Games	Start				End
1	12	Tournament Crossroads Open Chess Championship 2018				Tournament Paul Roos Open Championship 2018
		date 2018-04-29	rnd 6	type Standard	result 0.5	date 2018-09-22	rnd 2	type Standard	result 0.5
		Opponent Milford, EP (Eugene)				Opponent Wright, A (Adrian)
2	8	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-10	rnd 5	type Standard	result 1	date 2019-09-27	rnd 1	type Standard	result 1
		Opponent Olkers, C (Caitlyn)				Opponent Khuphwathea, PC (Paul)
3	6	Tournament Cape of Good Hope Open 2019				Tournament 2019 Western Province League
		date 2019-01-27	rnd 4	type Standard	result 1	date 2019-07-27	rnd 1	type Standard	result 1
		Opponent Kedama, S (Sandiso)				Opponent Maytham, P (Phillip)

#	Games	Start				End
1	2	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 1	type Rapid	result 1	date 2019-01-19	rnd 2	type Rapid	result 0.5
		Opponent Jacobs, DE (Darryl)				Opponent Amini, D (Daud)

No games found.

#	Games	Start				End

#	Games	Start				End
1	10	Tournament 2018 Western Province League				Tournament Paul Roos Open Championship 2018
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-09-21	rnd 1	type Standard	result 1
		Opponent Mello, N (Nkwadi)				Opponent Olkers, LP (Lleyton)
2	4	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-24	rnd 9	type Standard	result 1	date 2019-09-27	rnd 1	type Standard	result 1
		Opponent Slamang, MK (Mohammed)				Opponent Khuphwathea, PC (Paul)
3	3	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-10	rnd 5	type Standard	result 1	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Olkers, C (Caitlyn)				Opponent Raubenheimer, G (Granton)

#	Games	Start				End
1	10	Tournament 2018 Western Province League				Tournament Paul Roos Open Championship 2018
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-09-21	rnd 1	type Standard	result 1
		Opponent Mello, N (Nkwadi)				Opponent Olkers, LP (Lleyton)
2	4	Tournament 2019 Western Province League				Tournament 2019 National Club Chess Championships
		date 2019-08-24	rnd 9	type Standard	result 1	date 2019-09-27	rnd 1	type Standard	result 1
		Opponent Slamang, MK (Mohammed)				Opponent Khuphwathea, PC (Paul)
3	3	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-08-10	rnd 5	type Standard	result 1	date 2019-08-17	rnd 7	type Standard	result 1
		Opponent Olkers, C (Caitlyn)				Opponent Raubenheimer, G (Granton)

#	Games	Start				End
1	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 1	type Rapid	result 1	date 2019-01-19	rnd 1	type Rapid	result 1
		Opponent Jacobs, DE (Darryl)				Opponent Jacobs, DE (Darryl)

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	Amini ,D (Daud)	4	0.5	-318.8	2	0	-425	1	0.5	0	1	0	-425
1	Amini ,D (Daud)	4	2070.9	1752.2	2	2044.8	1645.9	1	2091.6	2070.9	1	2087.6	1645.9
2	Ferreira ,C (Craig)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
2	Ferreira ,C (Craig)	2	1364.9	1152.4	1	1324.9	1364.9	1	1323.1	939.9	0	0	0
3	Van Schaik ,MP (Michael Peter)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Van Schaik ,MP (Michael Peter)	1	1597.8	1172.8	1	1595.2	1172.8	0	0	0	0	0	0
4	Olkers ,C (Caitlyn)	1	1	425	1	1	425	0	0	0	0	0	0
4	Olkers ,C (Caitlyn)	1	1332.3	1757.3	1	1304.8	1757.3	0	0	0	0	0	0
5	Nkuna ,MJ (Moeletsi Jason)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nkuna ,MJ (Moeletsi Jason)	1	1040.6	1465.6	1	1015.6	1465.6	0	0	0	0	0	0
6	Visagie ,C (Cheslin)	1	1	425	1	1	425	0	0	0	0	0	0
6	Visagie ,C (Cheslin)	1	1128.9	1553.9	1	1108.4	1553.9	0	0	0	0	0	0
7	Olkers ,LP (Lleyton)	1	1	425	1	1	425	0	0	0	0	0	0
7	Olkers ,LP (Lleyton)	1	1524.3	1949.3	1	1515.8	1949.3	0	0	0	0	0	0
8	Lefyedi ,T (Thatego)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Lefyedi ,T (Thatego)	1	1605.1	1605.1	1	1601.7	1605.1	0	0	0	0	0	0
9	Ndimande ,N (Nqobani)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ndimande ,N (Nqobani)	1	1249.4	1674.4	1	1255.2	1674.4	0	0	0	0	0	0
10	Carelse ,RS (Reginald Stephen)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Carelse ,RS (Reginald Stephen)	1	1487.9	1487.9	1	1488.1	1487.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Boyisi, A (Aaron)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms