Chess South Africa Ratings Database

PLAYER PAGE

Personal

Shai, L (Leon)

Chess SA id

1020103174

FIDE id

Date of birth

2002-12-31 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1681.3	1701.8	1255.4	1200
Raw rating	1681.3	1701.8	1255.4	1200
Weighted rating	1670.4	1694.1	1247.1	1200
Weighted performance	1532.6	1529.2	0	0
Floor	1203.5	1250.1	755.4	700
K-factor	28	28	36	36
Min/Max rating change allowed	83.5	81.1	153.2	165.8
Highest rating	1718.6 2023-10-01	1750.1 2024-03-01	1387.8 2024-07-01	1200 2018-10-01
Highest raw rating	1703.5 2024-03-01	1750.1 2024-03-01	1255.4 2024-08-01	1200 2024-03-01
Highest weighted rating	1703.5 2024-07-01	1750.1 2024-08-01	1243.2 2025-08-01	1200 2018-10-01
Highest weighted performance	1718.6 2023-10-01	1723.1 2023-10-01	1387.8 2024-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1681.3	1701.8	1255.4	1200
Analysis
Rating	1681.3	1701.8	1255.4	1200
Raw rating	1681.3	1701.8	1255.4	1200
Weighted rating	1670.4	1694.1	1247.1
Weighted performance	1532.6	1529.2	0
K-factor	28	28	36	36
Floor	1203.5	1250.1	755.4	700
Max/Min rating change allowed	83.5	81.1	153.2	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	1681.3	1701.8	1255.4	1200
New weighted rating	1670.9	1694.1	1248.8	1200
New weighted performance	1532	1528.6	0	0
Temp new rating	1681.3	1701.8	1255.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1681.3	1701.8	1255.4	1200
New K-factor	28	28	36	36
New floor	1203.5	1250.1	755.4	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	35	28	7
	32	32	0
	24	24	0
	0	0	0
History	114	107	7

Games since
	Main 58	Standard 51		Rapid 7		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	340		136		11
Male	321		128		11
Adult	188		78		9
Adult Male	180		77		9
Standard
	RSA		Province		Region
Overall	287		119		8
Male	270		112		8
Adult	162		69		7
Adult Male	154		67		7
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	10	7	70	170	1568.1	1738.1
Standard	10	7	70	170	1568.1	1738.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	114	71.5	62.72	108.1	1500.3	1608.4
Standard	107	66.5	62.15	103.3	1510.1	1613.3
Rapid	7	5	71.43	182.1	1351.7	1533.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1681.3	1701.8	1255.4	1200
2025-09-01	1681.3	1701.8	1255.4	1200
2025-08-01	1681.3	1701.8	1255.4	1200
2025-07-01	1681.3	1701.8	1255.4	1200
2025-06-01	1681.3	1701.8	1255.4	1200
2025-05-01	1681.3	1701.8	1255.4	1200
2025-04-01	1681.3	1701.8	1255.4	1200
2025-03-01	1680.1	1701.9	1255.4	1200
2025-02-01	1660.6	1684.5	1255.4	1200
2025-01-01	1640	1652.7	1255.4	1200
2024-12-01	1640	1652.7	1255.4	1200
2024-11-01	1640	1652.7	1255.4	1200
2024-10-01	1640	1652.7	1255.4	1200
2024-09-01	1615.7	1650.7	1255.4	1200
2024-08-01	1628.6	1671.7	1255.4	1200
2024-07-01	1677.7	1718.2	1200	1200
2024-06-01	1677.7	1718.2	1200	1200
2024-08-01	1703.5	1750.1	1200	1200
2024-04-01	1703.5	1750.1	1200	1200
2024-03-01	1703.5	1750.1	1200	1200
2024-02-01	1703.5	1750.1	1200	1200
2024-01-01	1703.5	1750.1	1200	1200
2023-12-01	1703.5	1693.7	1200	1200
2023-11-01	1700.1	1704.6	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	2025 Chris Greyling Open Chess Tournament (A)	2025-03-15	2025-03-15	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Afrikaans High School Open 08 Feb 2025 (A)	2025-02-08	2025-02-08	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Chris Greyling Open Chess Tournament (A)	2025-03-15	2025-03-15	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Afrikaans High School Open 08 Feb 2025 (A)	2025-02-08	2025-02-08	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
3	2024 Moja Chess Extravaganza (B)	2024-09-25	2024-09-29	Standard	Frances Baard (NCF)	9	9	6	Yes	Analysis
4	Sedibeng Chess Open 07 Sept 24 (A)	2024-09-07	2024-09-07	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
5	2024 Alekhine Open Chess Tournament (A)	2024-08-09	2024-08-10	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
6	Eureka Open 27 July 2024 (A)	2024-07-27	2024-07-27	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis
7	Midvaal Winter Classic 13 July 2024 (B)	2024-07-13	2024-07-13	Rapid	Sedibeng (GSV)	7	7	5	Yes	Analysis
8	Gauteng Cup 2nd Edition 2024	2024-05-18	2024-05-18	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
9	2023 USSA Championships (Open)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	9	6	Yes	Analysis
10	2023 Moja Chess Extravaganza (B)	2023-09-30	2023-10-04	Standard	Frances Baard (NCF)	9	9	6	Yes	Analysis
11	2023 Gauteng Noord (A)	2023-10-14	2023-10-15	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
12	2023 Centurion Chess Open (A)	2023-09-23	2023-09-23	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
13	Eureka Open 2023 (B)	2023-07-29	2023-07-29	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
14	Mzansi Spring Open 2022 (Prestige)	2022-09-03	2022-09-03	Standard	Johannesburg Metro (GJM)	5	4	2.5	Yes	Analysis
15	Eureka Open 2022 (B)	2022-07-30	2022-07-30	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
16	LS Vryheidsmonument Chess Open 2022 (A+B)	2022-05-07	2022-05-07	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
17	Lux Deo NG Kerk Chess Open 2022 (A+B)	2022-04-09	2022-04-09	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
18	Dirk De Koster Chess Open 2022 (B)	2022-04-23	2022-04-23	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
19	Fonteine Ope 2019 (A)	2019-10-19	2019-10-19	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
20	Free State Schools Chess Championship 2019 (U18 Boys)	2019-05-25	2019-05-25	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
21	Sasolburg Open 2018 (C)	2018-06-02	2018-06-02	Standard	Sedibeng (GSV)	5	4	4	Yes	Analysis

#	Games	Start				End
1	10	Tournament Lux Deo NG Kerk Chess Open 2022				Tournament Dirk De Koster Chess Open 2022
		date 2022-04-09	rnd 1	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Buthelezi, S (Simphiwe)				Opponent De Villiers, L (Lindie)
2	8	Tournament Eureka Open 2022				Tournament Mzansi Spring Open 2022
		date 2022-07-30	rnd 1	type Standard	result 1	date 2022-09-03	rnd 4	type Standard	result 1
		Opponent Kunaka, P (Praise)				Opponent Odendaal, W (Willem)
3	6	Tournament Afrikaans High School Open 08 Feb 2025				Tournament 2025 Chris Greyling Open Chess Tournament
		date 2025-02-08	rnd 1	type Standard	result 1	date 2025-03-15	rnd 1	type Standard	result 1
		Opponent Ngobeni, N (Njabulo)				Opponent Botha, TJ (Theuns)

#	Games	Start				End
1	10	Tournament Lux Deo NG Kerk Chess Open 2022				Tournament Dirk De Koster Chess Open 2022
		date 2022-04-09	rnd 1	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Buthelezi, S (Simphiwe)				Opponent De Villiers, L (Lindie)
2	8	Tournament Eureka Open 2022				Tournament Mzansi Spring Open 2022
		date 2022-07-30	rnd 1	type Standard	result 1	date 2022-09-03	rnd 4	type Standard	result 1
		Opponent Kunaka, P (Praise)				Opponent Odendaal, W (Willem)
3	6	Tournament Afrikaans High School Open 08 Feb 2025				Tournament 2025 Chris Greyling Open Chess Tournament
		date 2025-02-08	rnd 1	type Standard	result 1	date 2025-03-15	rnd 1	type Standard	result 1
		Opponent Ngobeni, N (Njabulo)				Opponent Botha, TJ (Theuns)

#	Games	Start				End
1	4	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Fakude, S (Samuel)				Opponent Radebe, T (Thabang)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 7	type Rapid	result 1	date 2024-07-13	rnd 7	type Rapid	result 1
		Opponent Marema, P (Phindile)				Opponent Marema, P (Phindile)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Sasolburg Open 2018				Tournament Free State Schools Chess Championship 2019
		date 2018-06-02	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Barnard, M (Martin)				Opponent Dunya, T (Tebello)
2	5	Tournament 2023 Moja Chess Extravaganza				Tournament 2023 Moja Chess Extravaganza
		date 2023-09-30	rnd 1	type Standard	result 1	date 2023-10-02	rnd 5	type Standard	result 1
		Opponent Springbok, J (Jason)				Opponent Mthombeni, S (Sanele)
3	5	Tournament Dirk De Koster Chess Open 2022				Tournament Dirk De Koster Chess Open 2022
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Rethabile, M (Mantso)				Opponent De Villiers, L (Lindie)

#	Games	Start				End
1	6	Tournament Sasolburg Open 2018				Tournament Free State Schools Chess Championship 2019
		date 2018-06-02	rnd 2	type Standard	result 1	date 2019-05-25	rnd 2	type Standard	result 1
		Opponent Barnard, M (Martin)				Opponent Dunya, T (Tebello)
2	5	Tournament 2023 Moja Chess Extravaganza				Tournament 2023 Moja Chess Extravaganza
		date 2023-09-30	rnd 1	type Standard	result 1	date 2023-10-02	rnd 5	type Standard	result 1
		Opponent Springbok, J (Jason)				Opponent Mthombeni, S (Sanele)
3	5	Tournament Dirk De Koster Chess Open 2022				Tournament Dirk De Koster Chess Open 2022
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 5	type Standard	result 1
		Opponent Rethabile, M (Mantso)				Opponent De Villiers, L (Lindie)

#	Games	Start				End
1	4	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Fakude, S (Samuel)				Opponent Radebe, T (Thabang)
2	1	Tournament Midvaal Winter Classic 13 July 2024				Tournament Midvaal Winter Classic 13 July 2024
		date 2024-07-13	rnd 7	type Rapid	result 1	date 2024-07-13	rnd 7	type Rapid	result 1
		Opponent Marema, P (Phindile)				Opponent Marema, P (Phindile)

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	Kunaka ,P (Praise)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
1	Kunaka ,P (Praise)	3	1416.2	1699.5	3	1427.1	1699.5	0	0	0	0	0	0
2	Lesuthu ,KM (Kali Moses)	2	1	0	2	1	0	0	0	0	0	0	0
2	Lesuthu ,KM (Kali Moses)	2	1632	1632	2	1630.7	1632	0	0	0	0	0	0
3	Sidumo ,A (Anga)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Sidumo ,A (Anga)	2	1704.7	1492.2	2	1714.9	1492.2	0	0	0	0	0	0
4	Chibase ,N (Nkosana)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Chibase ,N (Nkosana)	2	1773.1	1348.1	2	1780.8	1348.1	0	0	0	0	0	0
5	Nene ,TH (Themba Hope)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Nene ,TH (Themba Hope)	2	1888.1	1463.1	2	1916.7	1463.1	0	0	0	0	0	0
6	Nxumalo ,S (Sanele)	2	2	425	2	2	425	0	0	0	0	0	0
6	Nxumalo ,S (Sanele)	2	1495.2	1920.2	2	1494.4	1920.2	0	0	0	0	0	0
7	Mantati ,SV (Sebei Victor)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Mantati ,SV (Sebei Victor)	2	1598.1	1385.6	2	1600.5	1385.6	0	0	0	0	0	0
8	Lamont ,M (Michael)	2	1	0	2	1	0	0	0	0	0	0	0
8	Lamont ,M (Michael)	2	1423.9	1423.9	2	1419.2	1423.9	0	0	0	0	0	0
9	Tlamama ,T (Tshepang)	2	2	425	2	2	425	0	0	0	0	0	0
9	Tlamama ,T (Tshepang)	2	1491.2	1916.2	2	1498.2	1916.2	0	0	0	0	0	0
10	Mittermaier ,G (Gunther)	2	2	425	2	2	425	0	0	0	0	0	0
10	Mittermaier ,G (Gunther)	2	1439.3	1864.3	2	1447	1864.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Shai, L (Leon)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms