Chess South Africa Ratings Database

PLAYER PAGE

Personal

Glass, A (Aharon)

Chess SA id

109094343

FIDE id

Date of birth

2009-09-16 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1471	1470.5	1200	1210.4
Raw rating	1470.6	1465.8	1200	1210.4
Weighted rating	1471	1470.5	1200	1210.4
Weighted performance	1321.1	1322.3	0	0
Floor	1014.9	1018.2	700	710.4
K-factor	32	32	36	36
Min/Max rating change allowed	112.8	113.5	165.8	163.4
Highest rating	1514.9 2025-04-01	1518.2 2025-04-01	1200 2018-10-01	1231.4 2023-05-01
Highest raw rating	1514.9 2025-04-01	1518.2 2025-04-01	1200 2024-02-01	1210.4 2024-02-01
Highest weighted rating	1468.8 2025-11-30	1468.7 2025-11-30	1200 2018-10-01	1210.4 2025-04-01
Highest weighted performance	1514.9 2025-04-01	1518.2 2024-06-01	1200 2024-02-01	1231.4 2023-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.9	1.4	0	0
New rating	1472.9	1471.9	1200	1210.4
Analysis
Rating	1471	1470.5	1200	1210.4
Raw rating	1470.6	1465.8	1200	1210.4
Weighted rating	1471	1470.5	1200
Weighted performance	1321.1	1322.3	0
K-factor	32	32	36	36
Floor	1014.9	1018.2	700	710.4
Max/Min rating change allowed	112.8	113.5	165.8	163.4
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	1470.6	1465.8	1200	1210.4
New weighted rating	1472.9	1471.9	1200	1210.4
New weighted performance	1310.7	1311.8	0	0
Temp new rating	1472.9	1471.9	1200	1210.4
Temp new rating +/-	1.9	1.4	0	0
Final new rating +/-	1.9	1.4	0	0
New rating	1472.9	1471.9	1200	1210.4
New K-factor	32	32	36	36
New floor	1014.9	1018.2	700	710.4

Item	Main	Standard	Blitz
	0	0	0
	16	16	0
	23	23	0
	22	13	9
	12	12	0
	0	0	0
History	93	84	9

Games since
	Main 39	Standard 39		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	1449		532		178
Male	1215		435		147
U18	228		90		27
U18 Male	199		77		22
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	16	9	56.25	53.1	1414.2	1467.3
Standard	16	9	56.25	53.1	1414.2	1467.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	88	51.5	58.52	72.4	1369.9	1442.4
Standard	79	46.5	58.86	75.3	1359	1434.4
Rapid	0	0	0	0	0	0
Blitz	9	5	55.56	47.2	1465.6	1512.8

Date	Main	Standard	Rapid	Blitz
2026-01-01	1470.6	1465.8	1200	1210.4
2025-11-30	1470.6	1465.8	1200	1210.4
2025-11-01	1487	1484	1200	1210.4
2025-09-30	1487	1484	1200	1210.4
2025-09-01	1487	1484	1200	1210.4
2025-08-01	1487	1484	1200	1210.4
2025-07-01	1487	1484	1200	1210.4
2025-06-01	1514.9	1518.2	1200	1210.4
2025-05-01	1514.9	1518.2	1200	1210.4
2025-04-01	1514.9	1518.2	1200	1210.4
2025-03-01	1449.6	1451.1	1200	1210.4
2025-02-01	1449.6	1451.1	1200	1210.4
2025-01-01	1449.6	1451.1	1200	1210.4
2024-12-01	1449.6	1451.1	1200	1210.4
2024-11-01	1449.1	1451.1	1200	1210.4
2024-10-01	1449.1	1451.1	1200	1210.4
2024-09-01	1449.1	1451.1	1200	1210.4
2024-11-01	1449.1	1451.1	1200	1210.4
2024-07-01	1449.1	1451.1	1200	1210.4
2024-06-01	1351.5	1354.5	1200	1210.4
2024-05-01	1351.5	1354.5	1200	1210.4
2024-04-01	1374.8	1379.5	1200	1210.4
2024-03-01	1347.6	1350.7	1200	1210.4
2024-02-01	1347.6	1350.7	1200	1210.4

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	JCC St Davids Marist Schools League 2025 (A)	2025-09-08	2025-10-27	Standard	Johannesburg Metro (GJM)	6	4	2.5	Yes	Analysis
2	JCC Steyn City High Schools League 2025 (A)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	3	0	Yes	Analysis
3	2nd Knight Riders Junior Open 2025 (A+B)	2025-03-23	2025-03-23	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
4	JCC - Dainfern Chess League 2025 (A)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
5	JCC St Peters High Schools League 2024 (A)	2024-09-09	2024-10-21	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
6	Second Knight Riders Juniors Open Chess Tournament 2024 (A+B)	2024-06-08	2024-06-08	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
7	JCC Steyn City High Schools League 2024 (A)	2024-05-11	2024-05-25	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis
8	Dainfern College Chess League 2024 (A)	2024-01-29	2024-03-11	Standard	Johannesburg Metro (GJM)	6	6	1.5	Yes	Analysis
9	1st Knights Open Tournament 2024 (B)	2024-03-23	2024-03-23	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
10	St Peters College Chess League 2023 (A)	2023-09-11	2023-10-23	Standard	Johannesburg Metro (GJM)	6	3	1	Yes	Analysis
11	2023 Tshwane Chess FIDE Rated Blitz League 1	2023-05-28	2023-05-28	Blitz	Tshwane (GTP)	9	9	5	Yes	Analysis
12	Steyn City School Chess League 2023 (A)	2023-05-05	2023-05-29	Standard	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis
13	Dainfern College Chess League 2023 (A)	2023-01-30	2023-03-13	Standard	Johannesburg Metro (GJM)	6	5	4	Yes	Analysis
14	2022 South African Junior Team Chess Championships (U16 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
15	JMC 3rd Trials 2022 (C)	2022-09-11	2022-09-11	Standard	Johannesburg Metro (GJM)	5	5	5	Yes	Analysis
16	Goforchess Junior Chess Championship 1 2020	2020-11-08	2020-11-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
17	Goforchess Introduction to Chess Tournament 2020 (Championship)	2020-02-16	2020-02-16	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
18	JHB North High School League 2019	2019-02-19	2019-07-22	Standard	Chess Excellence (CEX)	5	5	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament JCC - Dainfern Chess League 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-17	rnd 6	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Mekebeb, N (Nolawi)				Opponent Maduna, F (Fundile)
2	6	Tournament Second Knight Riders Juniors Open Chess Tournament 2024				Tournament JCC St Peters High Schools League 2024
		date 2024-06-08	rnd 2	type Standard	result 1	date 2024-09-30	rnd 3	type Standard	result 1
		Opponent Mkhasibe, NZ (Nobuhle)				Opponent Rowberry, T (Thomas)
3	6	Tournament Goforchess Junior Chess Championship 1 2020				Tournament JMC 3rd Trials 2022
		date 2020-11-08	rnd 5	type Standard	result 1	date 2022-09-11	rnd 5	type Standard	result 1
		Opponent Wu, Y (Yuansi)				Opponent Duek, D (Daniel)

#	Games	Start				End
1	6	Tournament JCC - Dainfern Chess League 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-17	rnd 6	type Standard	result 1	date 2025-03-23	rnd 5	type Standard	result 1
		Opponent Mekebeb, N (Nolawi)				Opponent Maduna, F (Fundile)
2	6	Tournament Second Knight Riders Juniors Open Chess Tournament 2024				Tournament JCC St Peters High Schools League 2024
		date 2024-06-08	rnd 2	type Standard	result 1	date 2024-09-30	rnd 3	type Standard	result 1
		Opponent Mkhasibe, NZ (Nobuhle)				Opponent Rowberry, T (Thomas)
3	6	Tournament Goforchess Junior Chess Championship 1 2020				Tournament JMC 3rd Trials 2022
		date 2020-11-08	rnd 5	type Standard	result 1	date 2022-09-11	rnd 5	type Standard	result 1
		Opponent Wu, Y (Yuansi)				Opponent Duek, D (Daniel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 6	type Blitz	result 1	date 2023-05-28	rnd 7	type Blitz	result 1
		Opponent Wolvaardt, J (Jonathan)				Opponent Rust, C (Christoph)
2	1	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 9	type Blitz	result 1	date 2023-05-28	rnd 9	type Blitz	result 1
		Opponent Smit, M (Mikayla)				Opponent Smit, M (Mikayla)
3	1	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 4	type Blitz	result 1	date 2023-05-28	rnd 4	type Blitz	result 1
		Opponent Dsouza, E (Ethan)				Opponent Dsouza, E (Ethan)

#	Games	Start				End
1	6	Tournament Goforchess Junior Chess Championship 1 2020				Tournament JMC 3rd Trials 2022
		date 2020-11-08	rnd 5	type Standard	result 1	date 2022-09-11	rnd 5	type Standard	result 1
		Opponent Wu, Y (Yuansi)				Opponent Duek, D (Daniel)
2	4	Tournament Dainfern College Chess League 2023				Tournament Dainfern College Chess League 2023
		date 2023-01-30	rnd 1	type Standard	result 1	date 2023-02-20	rnd 4	type Standard	result 1
		Opponent Panday, M (Mikhil)				Opponent Mabutho, Q (Qhama)
3	4	Tournament Goforchess Introduction to Chess Tournament 2020				Tournament Goforchess Introduction to Chess Tournament 2020
		date 2020-02-16	rnd 1	type Standard	result 1	date 2020-02-16	rnd 4	type Standard	result 1
		Opponent Vawda, A (Amilcar)				Opponent Chen, Y (Youlin)

#	Games	Start				End
1	6	Tournament Goforchess Junior Chess Championship 1 2020				Tournament JMC 3rd Trials 2022
		date 2020-11-08	rnd 5	type Standard	result 1	date 2022-09-11	rnd 5	type Standard	result 1
		Opponent Wu, Y (Yuansi)				Opponent Duek, D (Daniel)
2	4	Tournament Dainfern College Chess League 2023				Tournament Dainfern College Chess League 2023
		date 2023-01-30	rnd 1	type Standard	result 1	date 2023-02-20	rnd 4	type Standard	result 1
		Opponent Panday, M (Mikhil)				Opponent Mabutho, Q (Qhama)
3	4	Tournament Goforchess Introduction to Chess Tournament 2020				Tournament Goforchess Introduction to Chess Tournament 2020
		date 2020-02-16	rnd 1	type Standard	result 1	date 2020-02-16	rnd 4	type Standard	result 1
		Opponent Vawda, A (Amilcar)				Opponent Chen, Y (Youlin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 6	type Blitz	result 1	date 2023-05-28	rnd 7	type Blitz	result 1
		Opponent Wolvaardt, J (Jonathan)				Opponent Rust, C (Christoph)
2	1	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 9	type Blitz	result 1	date 2023-05-28	rnd 9	type Blitz	result 1
		Opponent Smit, M (Mikayla)				Opponent Smit, M (Mikayla)
3	1	Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1				Tournament 2023 Tshwane Chess FIDE Rated Blitz League 1
		date 2023-05-28	rnd 4	type Blitz	result 1	date 2023-05-28	rnd 4	type Blitz	result 1
		Opponent Dsouza, E (Ethan)				Opponent Dsouza, E (Ethan)

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	De Abreu ,P (Pedro)	4	3.5	318.8	4	3.5	318.8	0	0	0	0	0	0
1	De Abreu ,P (Pedro)	4	1241.4	1560.2	4	1248	1560.2	0	0	0	0	0	0
2	Weisz ,B (Benjamin)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Weisz ,B (Benjamin)	3	1701.2	1276.2	3	1698	1276.2	0	0	0	0	0	0
3	Dukhan ,K (Kashvir)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Dukhan ,K (Kashvir)	3	1488.5	1063.5	3	1486	1063.5	0	0	0	0	0	0
4	Felix ,R (Raphael)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Felix ,R (Raphael)	3	1990.3	1565.3	3	2004.2	1565.3	0	0	0	0	0	0
5	Boshoma ,C (Chisomo)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Boshoma ,C (Chisomo)	2	1710.5	1285.5	2	1719.3	1285.5	0	0	0	0	0	0
6	Rowberry ,T (Thomas)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Rowberry ,T (Thomas)	2	1154.7	1367.2	2	1147.8	1367.2	0	0	0	0	0	0
7	Mekebeb ,N (Nolawi)	2	1	0	2	1	0	0	0	0	0	0	0
7	Mekebeb ,N (Nolawi)	2	1253.8	1253.8	2	1259.5	1253.8	0	0	0	0	0	0
8	Tarry ,G (Gabriel)	2	2	425	2	2	425	0	0	0	0	0	0
8	Tarry ,G (Gabriel)	2	1279.6	1704.6	2	1272.8	1704.6	0	0	0	0	0	0
9	Chen ,Y (Youlin)	2	2	425	2	2	425	0	0	0	0	0	0
9	Chen ,Y (Youlin)	2	1441.1	1866.1	2	1434.8	1866.1	0	0	0	0	0	0
10	Clarke ,M (Myron)	2	1	0	2	1	0	0	0	0	0	0	0
10	Clarke ,M (Myron)	2	1274.1	1274.1	2	1288.9	1274.1	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

Glass, A (Aharon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms