Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lee, J (Joel)

Chess SA id

101017524

FIDE id

Date of birth

2001-12-21 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1677	1695.5	1449.3	1134.3
Raw rating	1677	1695.5	1449.3	1134.3
Weighted rating	1615.2	1639.9	1389.8	1134.3
Weighted performance	1429.6	952.9	0	0
Floor	1177	1195.5	949.3	634.3
K-factor	28	28	32	40
Min/Max rating change allowed	84	81.9	116.2	182.1
Highest rating	1677 2025-08-01	1695.5 2025-07-01	1449.3 2025-08-01	1200 2024-03-01
Highest raw rating	1677 2025-08-01	1695.5 2025-07-01	1449.3 2025-08-01	1134.3 2024-03-01
Highest weighted rating	1594.8 2025-08-01	1620.1 2025-08-01	1370.1 2025-08-01	1134.3 2024-11-01
Highest weighted performance	1619.3 2018-02-01	1619.9 2018-02-01	1336.7 2019-10-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1677	1695.5	1449.3	1134.3
Analysis
Rating	1677	1695.5	1449.3	1134.3
Raw rating	1677	1695.5	1449.3	1134.3
Weighted rating	1615.2	1639.9	1389.8
Weighted performance	1429.6	952.9	0
K-factor	28	28	32	40
Floor	1177	1195.5	949.3	634.3
Max/Min rating change allowed	84	81.9	116.2	182.1
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	1677	1695.5	1449.3	1134.3
New weighted rating	1621.4	1645.6	1395.5	1134.3
New weighted performance	1419.4	942.6	0	0
Temp new rating	1677	1695.5	1449.3	1134.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1677	1695.5	1449.3	1134.3
New K-factor	28	28	32	40
New floor	1177	1195.5	949.3	634.3

Item	Main	Standard	Rapid
	0	0	0
	13	6	7
	0	0	0
	7	0	7
	6	0	6
	0	0	0
History	223	182	41

Games since
	Main 13	Standard 6		Rapid 7		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
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	13	9.5	73.08	196.2	1688.5	1884.7
Standard	6	4.5	75	212.5	1841.9	2054.4
Rapid	7	5	71.43	182.1	1557.1	1739.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	145	90	62.07	102.6	1378.5	1481.1
Standard	120	72.5	60.42	88.5	1359	1447.5
Rapid	25	17.5	70	170	1472.5	1642.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1677	1695.5	1449.3	1134.3
2025-09-30	1677	1695.5	1449.3	1134.3
2025-09-01	1677	1695.5	1449.3	1134.3
2025-08-01	1677	1695.5	1449.3	1134.3
2025-07-01	1668.7	1695.5	1364.4	1134.3
2025-06-01	1580.3	1608	1364.4	1134.3
2025-05-01	1580.3	1608	1364.4	1134.3
2025-04-01	1580.3	1608	1364.4	1134.3
2025-03-01	1580.3	1608	1364.4	1134.3
2025-02-01	1580.3	1608	1364.4	1134.3
2025-01-01	1580.3	1608	1364.4	1134.3
2024-12-01	1580.3	1608	1364.4	1134.3
2024-11-01	1580.3	1608	1364.4	1134.3
2024-10-01	1580.3	1608	1364.4	1134.3
2024-09-01	1580.3	1608	1364.4	1134.3
2024-08-01	1580.3	1608	1364.4	1134.3
2024-07-01	1580.3	1608	1364.4	1134.3
2024-09-01	1580.3	1608	1364.4	1134.3
2024-05-01	1580.3	1608	1364.4	1134.3
2024-04-01	1580.3	1608	1364.4	1134.3
2024-03-01	1580.3	1608	1364.4	1134.3
2024-02-01	1580.3	1608	1364.4	1134.3
2024-01-01	1580.3	1608	1364.4	1134.3
2023-12-01	1580.3	1560.5	1332.8	1134.3

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	4th Curro Durbanville Rapid Open 2025 (Advanced)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	5	Yes	Analysis
2	Helderberg Chess Club Open 2025 (A)	2025-06-07	2025-06-08	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	4th Curro Durbanville Rapid Open 2025 (Advanced)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	5	Yes	Analysis
2	Helderberg Chess Club Open 2025 (A)	2025-06-07	2025-06-08	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
3	GPCA Rapid 2023 (Advanced)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	5	Yes	Analysis
4	Curro Durbanville Chess Open Rapid 2022 (A)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
5	2020 Western Province Open (Elite)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	2019 South African Junior Team Championships (U20A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
7	2019 Kraaifontein Open (Open)	2019-12-06	2019-12-08	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Western Cape Schools Kings & Queens 2019 (Boys)	2019-10-12	2019-10-12	Rapid	West Coast (WCU)	5	5	3.5	Yes	Analysis
9	Western Cape Top Schools 2019 (U18 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
10	2019 WP Youth Open (A)	2019-07-13	2019-07-13	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
11	Western Cape Schools Individuals 2019 (U18 Boys)	2019-05-04	2019-05-05	Standard	Eden (WEG)	6	6	4	Yes	Analysis
12	Crossroads Open Chess Championship 2019 (Presige)	2019-04-27	2019-04-28	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
13	Metro School Chess Closed Individual Trials 2019 (U18 Boys)	2019-03-01	2019-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
14	2019 South African Junior Closed Chess Championship (U18 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	2	Yes	Analysis
15	2019 Metro-East District Schools Trials (U18)	2019-02-01	2019-02-02	Standard	Cape Town (WCT)	6	5	4	Yes	Analysis
16	Cape of Good Hope Open 2019 (Prestige)	2019-01-25	2019-01-28	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
17	2018 Wild Card Chess Championships (U18 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
18	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
19	Paul Roos Open Championship 2018 (B)	2018-09-22	2018-09-23	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
20	Western Cape Top Schools 2018 (U19 Mix)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
21	Stellenberg Youth Chess Champs 2018 (B)	2018-06-22	2018-06-23	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
22	2018 WP Schools Closed Trials (U18 Boys)	2018-03-09	2018-03-10	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
23	2018 Western Province Open (B)	2018-03-02	2018-03-04	Standard	Cape Town (WCT)	6	5	2.5	Yes	Analysis
24	District East Schools Chess Open Trials 2018 (U18)	2018-02-02	2018-02-03	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament Western Cape Schools Kings & Queens 2019				Tournament 2019 Kraaifontein Open
		date 2019-10-12	rnd 2	type Rapid	result 1	date 2019-12-08	rnd 5	type Standard	result 0.5
		Opponent Nieuwoudt, D (Dawid)				Opponent Lee, DMO (Dafydd)
2	8	Tournament District East Schools Chess Open Trials 2018				Tournament 2018 Western Province Open
		date 2018-02-02	rnd 1	type Standard	result 1	date 2018-03-03	rnd 2	type Standard	result 1
		Opponent Mudhoni, D (Dylan)				Opponent Solomons, KK (Keegan)
3	6	Tournament 2020 Western Province Open				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2020-03-08	rnd 5	type Standard	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Makhupane, P (Phuthang)				Opponent Brander, WWM (Waylon)

#	Games	Start				End
1	8	Tournament District East Schools Chess Open Trials 2018				Tournament 2018 Western Province Open
		date 2018-02-02	rnd 1	type Standard	result 1	date 2018-03-03	rnd 2	type Standard	result 1
		Opponent Mudhoni, D (Dylan)				Opponent Solomons, KK (Keegan)
2	7	Tournament Western Cape Top Schools 2019				Tournament 2019 Kraaifontein Open
		date 2019-08-31	rnd 3	type Standard	result 1	date 2019-12-08	rnd 5	type Standard	result 0.5
		Opponent Roos, R (Rico)				Opponent Lee, DMO (Dafydd)
3	6	Tournament 2020 Western Province Open				Tournament Helderberg Chess Club Open 2025
		date 2020-03-08	rnd 5	type Standard	result 1	date 2025-06-07	rnd 4	type Standard	result 1
		Opponent Makhupane, P (Phuthang)				Opponent Ncethelo, B (Bongolethu)

#	Games	Start				End
1	8	Tournament Western Cape Schools Kings & Queens 2019				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2019-10-12	rnd 2	type Rapid	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Nieuwoudt, D (Dawid)				Opponent Brander, WWM (Waylon)
2	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 1	type Rapid	result 1	date 2023-06-24	rnd 4	type Rapid	result 1
		Opponent Bradley, C (Cameron)				Opponent Rogov, T (Timofey)
3	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 3	type Rapid	result 1
		Opponent Somai, R (Ruhan)				Opponent Hendricks, S (Siddeeq)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2020 Western Province Open				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2020-03-08	rnd 5	type Standard	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Makhupane, P (Phuthang)				Opponent Brander, WWM (Waylon)
2	5	Tournament Cape of Good Hope Open 2019				Tournament 2019 Metro-East District Schools Trials
		date 2019-01-27	rnd 4	type Standard	result 1	date 2019-02-02	rnd 3	type Standard	result 1
		Opponent Kaplan, N (Nathan)				Opponent Simons, G (Garin)
3	5	Tournament Stellenberg Youth Chess Champs 2018				Tournament Western Cape Top Schools 2018
		date 2018-06-23	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent De Wit, M (Marnus)				Opponent Kleinhans, J (Jason)

#	Games	Start				End
1	6	Tournament 2020 Western Province Open				Tournament Helderberg Chess Club Open 2025
		date 2020-03-08	rnd 5	type Standard	result 1	date 2025-06-07	rnd 4	type Standard	result 1
		Opponent Makhupane, P (Phuthang)				Opponent Ncethelo, B (Bongolethu)
2	5	Tournament Cape of Good Hope Open 2019				Tournament 2019 Metro-East District Schools Trials
		date 2019-01-27	rnd 4	type Standard	result 1	date 2019-02-02	rnd 3	type Standard	result 1
		Opponent Kaplan, N (Nathan)				Opponent Simons, G (Garin)
3	5	Tournament Stellenberg Youth Chess Champs 2018				Tournament Western Cape Top Schools 2018
		date 2018-06-23	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent De Wit, M (Marnus)				Opponent Kleinhans, J (Jason)

#	Games	Start				End
1	6	Tournament Western Cape Schools Kings & Queens 2019				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2019-10-12	rnd 4	type Rapid	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Hemeni, S (Simamnkele)				Opponent Brander, WWM (Waylon)
2	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 1	type Rapid	result 1	date 2023-06-24	rnd 4	type Rapid	result 1
		Opponent Bradley, C (Cameron)				Opponent Rogov, T (Timofey)
3	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 3	type Rapid	result 1
		Opponent Somai, R (Ruhan)				Opponent Hendricks, S (Siddeeq)

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	Jacobs ,B (Brandon Lee)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
1	Jacobs ,B (Brandon Lee)	3	1404.3	1262.6	3	1395.3	1262.6	0	0	0	0	0	0
2	Nkomo ,A (Amahle)	2	1	0	2	1	0	0	0	0	0	0	0
2	Nkomo ,A (Amahle)	2	1182.3	1182.3	2	1200.4	1182.3	0	0	0	0	0	0
3	Marais ,N (Neil)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Marais ,N (Neil)	2	1270.1	1482.6	2	1272.6	1482.6	0	0	0	0	0	0
4	Sithole ,A (Anoona)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Sithole ,A (Anoona)	2	1182.4	757.4	2	1193.3	757.4	0	0	0	0	0	0
5	Roos ,R (Rico)	2	2	425	2	2	425	0	0	0	0	0	0
5	Roos ,R (Rico)	2	1220.3	1645.3	2	1229.2	1645.3	0	0	0	0	0	0
6	Makhupane ,P (Phuthang)	2	1	0	2	1	0	0	0	0	0	0	0
6	Makhupane ,P (Phuthang)	2	1382.2	1382.2	2	1382.8	1382.2	0	0	0	0	0	0
7	Boshoff ,C (Chris)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Boshoff ,C (Chris)	2	1293.2	1505.7	2	1315.2	1505.7	0	0	0	0	0	0
8	Fibiger ,JN (Jethro Nathanael)	2	1	0	2	1	0	0	0	0	0	0	0
8	Fibiger ,JN (Jethro Nathanael)	2	1491.4	1491.4	2	1489.8	1491.4	0	0	0	0	0	0
9	Mncwabe ,M (Minenhle Junior)	2	1	0	2	1	0	0	0	0	0	0	0
9	Mncwabe ,M (Minenhle Junior)	2	1662.9	1662.9	2	1665.5	1662.9	0	0	0	0	0	0
10	Frye ,REE (Reece Lawrence)	2	1	0	2	1	0	0	0	0	0	0	0
10	Frye ,REE (Reece Lawrence)	2	1614.4	1614.4	2	1618.8	1614.4	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

Lee, J (Joel)

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