Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Zyl, G (Gerhardus Tj)

Chess SA id

1090156524

FIDE id

Date of birth

2009-02-03 (U18)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

12.3

Junior GPX Points

1356.1

Item	Main	Standard	Rapid	Blitz
Rating	1391.9	1384.2	1250	1200
Raw rating	1391.9	1384.2	1250	1200
Weighted rating	1351.1	1340.1	1239	1200
Weighted performance	1319.5	1262.1	0	0
Floor	891.9	884.2	750	700
K-factor	36	36	36	36
Min/Max rating change allowed	126.2	127.5	154.4	165.8
Highest rating	1408.9 2024-10-01	1384.2 2025-11-01	1496 2024-10-01	1200 2018-10-01
Highest raw rating	1391.9 2025-11-01	1384.2 2025-11-01	1250 2024-11-01	1200 2024-02-01
Highest weighted rating	1351.1 2025-11-01	1340.1 2025-11-01	1232.5 2025-08-01	1200 2018-10-01
Highest weighted performance	1408.9 2024-10-01	1363.7 2023-08-01	1496 2024-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1391.9	1384.2	1250	1200
Analysis
Rating	1391.9	1384.2	1250	1200
Raw rating	1391.9	1384.2	1250	1200
Weighted rating	1351.1	1340.1	1239
Weighted performance	1319.5	1262.1	0
K-factor	36	36	36	36
Floor	891.9	884.2	750	700
Max/Min rating change allowed	126.2	127.5	154.4	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	1391.9	1384.2	1250	1200
New weighted rating	1356.5	1345.3	1240.8	1200
New weighted performance	1310.9	1253.6	0	0
Temp new rating	1391.9	1384.2	1250	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1391.9	1384.2	1250	1200
New K-factor	36	36	36	36
New floor	891.9	884.2	750	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	18	14	4
	14	14	0
	0	0	0
	0	0	0
History	42	38	4

Games since
	Main 28	Standard 24		Rapid 4		Blitz 0
Gender	Male
Age group	U18
Region	Sedibeng (GSV)
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	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
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	10	6	60	85	1336.5	1421.5
Standard	10	6	60	85	1336.5	1421.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	42	27	64.29	121.4	1274	1395.4
Standard	38	23.5	61.84	100.7	1275.6	1376.2
Rapid	4	3.5	87.5	318.8	1258.8	1577.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1391.9	1384.2	1250	1200
2025-09-30	1370.3	1357.6	1250	1200
2025-09-01	1370.3	1357.6	1250	1200
2025-08-01	1351.4	1330.1	1250	1200
2025-07-01	1351.4	1330.1	1250	1200
2025-06-01	1371	1353	1250	1200
2025-05-01	1371	1353	1250	1200
2025-04-01	1371	1353	1250	1200
2025-03-01	1371	1353	1250	1200
2025-02-01	1371	1353	1250	1200
2025-01-01	1371	1353	1250	1200
2024-12-01	1371	1353	1250	1200
2024-11-01	1371	1353	1250	1200
2024-10-01	1344.9	1353	1200	1200
2024-09-01	1344.9	1353	1200	1200
2024-08-01	1263	1272	1200	1200
2024-07-01	1263	1272	1200	1200
2024-09-01	1263	1272	1200	1200
2024-05-01	1263	1272	1200	1200
2024-04-01	1263	1272	1200	1200
2024-03-01	1233.1	1239.2	1200	1200
2024-02-01	1233.1	1239.2	1200	1200
2024-01-01	1258.5	1270.2	1200	1200
2023-12-01	1258.5	1270.2	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 Gauteng Top Schools Teams (U17)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	GDE (D8) Sedibeng West Schools - Teams 2025 (U17)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	4	4	3	Yes	Analysis
3	GDE (D8) Sedibeng West Schools Individuals 2025 (U18 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	1	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U17)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	GDE (D8) Sedibeng West Schools - Teams 2025 (U17)	2025-08-16	2025-08-16	Standard	Sedibeng (GSV)	4	4	3	Yes	Analysis
3	GDE (D8) Sedibeng West Schools Individuals 2025 (U18 Boys)	2025-06-07	2025-06-07	Standard	Sedibeng (GSV)	5	1	0	Yes	Analysis
4	Gauteng Top Schools 2024 (U19 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	4	3.5	Yes	Analysis
5	Sedibeng West District Schools Chess Team's Championships 2024 (U15)	2024-08-12	2024-08-12	Standard	Sedibeng (GSV)	5	5	5	Yes	Analysis
6	Valia's Open 2024 (B)	2024-03-02	2024-03-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
7	2024 Gauteng Inter-Region Chess Championship (U16C)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
8	2023 Gauteng Top Schools (U17 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
9	2023 Sedibeng West District Schools Chess Tournament (U17+U19)	2023-08-12	2023-08-12	Standard	Sedibeng (GSV)	5	4	2.5	Yes	Analysis
10	D8 Schools Individuals 2023 (U15 Boys)	2023-05-20	2023-05-20	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	11	Tournament Valia's Open 2024				Tournament Gauteng Top Schools 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-10-05	rnd 4	type Rapid	result 1
		Opponent Coetzee, J (Johan)				Opponent Maluleka, T (Tshepang)
2	5	Tournament 2023 Sedibeng West District Schools Chess Tournament				Tournament 2023 Gauteng Top Schools
		date 2023-08-12	rnd 5	type Standard	result 1	date 2023-08-19	rnd 4	type Standard	result 1
		Opponent Mphasa, K (Kgotso)				Opponent Jimmy, N (Nesika)
3	4	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-30	rnd 3	type Standard	result 1
		Opponent Mogorosi, M (Monnapule)				Opponent Lindokuhle, H (Hlatshwayo)

#	Games	Start				End
1	7	Tournament Valia's Open 2024				Tournament Sedibeng West District Schools Chess Team's Championships 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-08-12	rnd 5	type Standard	result 1
		Opponent Coetzee, J (Johan)				Opponent Senyane, S (Selloane)
2	5	Tournament 2023 Sedibeng West District Schools Chess Tournament				Tournament 2023 Gauteng Top Schools
		date 2023-08-12	rnd 5	type Standard	result 1	date 2023-08-19	rnd 4	type Standard	result 1
		Opponent Mphasa, K (Kgotso)				Opponent Jimmy, N (Nesika)
3	3	Tournament D8 Schools Individuals 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-20	rnd 1	type Standard	result 0.5	date 2023-05-20	rnd 3	type Standard	result 1
		Opponent Mgwevu, Z (Zamani)				Opponent Kometsi, N (Nkanyezi)

#	Games	Start				End
1	4	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 4	type Rapid	result 1
		Opponent Zwane, K (Khanyi)				Opponent Maluleka, T (Tshepang)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Valia's Open 2024				Tournament Gauteng Top Schools 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-10-05	rnd 1	type Rapid	result 1
		Opponent Coetzee, J (Johan)				Opponent Zwane, K (Khanyi)
2	3	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 2	type Standard	result 1	date 2023-08-19	rnd 4	type Standard	result 1
		Opponent Mtimkulu, L (Lerato)				Opponent Jimmy, N (Nesika)
3	2	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Preklasa, J (Jayden)				Opponent Mokoena, T (Thato)

#	Games	Start				End
1	7	Tournament Valia's Open 2024				Tournament Sedibeng West District Schools Chess Team's Championships 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-08-12	rnd 5	type Standard	result 1
		Opponent Coetzee, J (Johan)				Opponent Senyane, S (Selloane)
2	3	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 2	type Standard	result 1	date 2023-08-19	rnd 4	type Standard	result 1
		Opponent Mtimkulu, L (Lerato)				Opponent Jimmy, N (Nesika)
3	2	Tournament GDE (D8) Sedibeng West Schools - Teams 2025				Tournament GDE (D8) Sedibeng West Schools - Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Preklasa, J (Jayden)				Opponent Mokoena, T (Thato)

#	Games	Start				End
1	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 3	type Rapid	result 1	date 2024-10-05	rnd 4	type Rapid	result 1
		Opponent Voigt, D (Daniel)				Opponent Maluleka, T (Tshepang)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 1	type Rapid	result 1
		Opponent Zwane, K (Khanyi)				Opponent Zwane, K (Khanyi)

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	Matsau ,K (Katleho)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Matsau ,K (Katleho)	2	1245.6	820.6	2	1248.4	820.6	0	0	0	0	0	0
2	Davids ,A (Anton)	2	1	0	2	1	0	0	0	0	0	0	0
2	Davids ,A (Anton)	2	1452.9	1452.9	2	1469.9	1452.9	0	0	0	0	0	0
3	Mogorosi ,M (Monnapule)	2	1	0	2	1	0	0	0	0	0	0	0
3	Mogorosi ,M (Monnapule)	2	1221.7	1221.7	2	1224.9	1221.7	0	0	0	0	0	0
4	Moustakis ,C (Costa)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Moustakis ,C (Costa)	1	1390.1	965.1	1	1380.5	965.1	0	0	0	0	0	0
5	Khama ,T (Tsholofelo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Khama ,T (Tsholofelo)	1	1363.8	1788.8	1	1379.5	1788.8	0	0	0	0	0	0
6	Mtimkulu ,L (Lerato)	1	1	425	1	1	425	0	0	0	0	0	0
6	Mtimkulu ,L (Lerato)	1	1478.6	1903.6	1	1476.9	1903.6	0	0	0	0	0	0
7	Mokoena ,A (Atlehang)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mokoena ,A (Atlehang)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Naicker ,GC (Gabriel Christian)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Naicker ,GC (Gabriel Christian)	1	1537.2	1537.2	1	1533.3	1537.2	0	0	0	0	0	0
9	Jimmy ,N (Nesika)	1	1	425	1	1	425	0	0	0	0	0	0
9	Jimmy ,N (Nesika)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Preklasa ,J (Jayden)	1	1	425	1	1	425	0	0	0	0	0	0
10	Preklasa ,J (Jayden)	1	1214.5	1639.5	1	1215.3	1639.5	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

Van Zyl, G (Gerhardus Tj)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms