Chess South Africa Ratings Database

PLAYER PAGE

Personal

Grundling, J (Jayden)

Chess SA id

1110105706

FIDE id

Grundling

Date of birth

2011-01-06 (U16)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1408.8	1421.8	1200	1239.6
Raw rating	1408.8	1421.8	1200	1239.6
Weighted rating	1390.6	1399.7	1200	1239.6
Weighted performance	1199.3	1199.1	0	0
Floor	908.8	921.8	700	739.6
K-factor	32	32	36	36
Min/Max rating change allowed	123.1	120.9	165.8	156.7
Highest rating	1408.8 2024-11-01	1421.8 2024-11-01	1200 2018-10-01	1399.7 2023-06-01
Highest raw rating	1408.8 2024-11-01	1421.8 2024-11-01	1200 2024-02-01	1239.6 2024-02-01
Highest weighted rating	1384.6 2025-08-01	1392.3 2025-08-01	1200 2018-10-01	1239.6 2025-05-05
Highest weighted performance	1384.5 2024-10-01	1384.4 2024-10-01	1200 2024-02-01	1399.7 2023-06-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1408.8	1421.8	1200	1239.6
Analysis
Rating	1408.8	1421.8	1200	1239.6
Raw rating	1408.8	1421.8	1200	1239.6
Weighted rating	1390.6	1399.7	1200
Weighted performance	1199.3	1199.1	0
K-factor	32	32	36	36
Floor	908.8	921.8	700	739.6
Max/Min rating change allowed	123.1	120.9	165.8	156.7
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	1408.8	1421.8	1200	1239.6
New weighted rating	1393.3	1403	1200	1239.6
New weighted performance	1198.7	1198.6	0	0
Temp new rating	1408.8	1421.8	1200	1239.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1408.8	1421.8	1200	1239.6
New K-factor	32	32	36	36
New floor	908.8	921.8	700	739.6

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	10	10	0
	32	25	7
	9	9	0
	0	0	0
History	55	48	7

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	55	33.5	60.91	92.7	1290	1382.7
Standard	48	29.5	61.46	97.4	1285.4	1382.8
Rapid	0	0	0	0	0	0
Blitz	7	4	57.14	60.7	1321.6	1382.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1408.8	1421.8	1200	1239.6
2025-09-01	1408.8	1421.8	1200	1239.6
2025-08-01	1408.8	1421.8	1200	1239.6
2025-07-01	1408.8	1421.8	1200	1239.6
2025-06-01	1408.8	1421.8	1200	1239.6
2025-05-01	1408.8	1421.8	1200	1239.6
2025-04-01	1408.8	1421.8	1200	1239.6
2025-03-01	1408.8	1421.8	1200	1239.6
2025-02-01	1408.8	1421.8	1200	1239.6
2025-01-01	1408.8	1421.8	1200	1239.6
2024-12-01	1408.8	1421.8	1200	1239.6
2024-11-01	1408.8	1421.8	1200	1239.6
2024-10-01	1338	1335.8	1200	1239.6
2024-09-01	1338	1335.8	1200	1239.6
2024-08-01	1338	1335.8	1200	1239.6
2024-07-01	1338	1335.8	1200	1239.6
2024-06-01	1338	1335.8	1200	1239.6
2024-08-01	1338	1335.8	1200	1239.6
2024-04-01	1338	1335.8	1200	1239.6
2024-03-01	1338	1335.8	1200	1239.6
2024-02-01	1338	1335.8	1200	1239.6
2024-01-01	1350.5	1347.7	1200	1239.6
2023-12-01	1350.5	1347.7	1200	1239.6
2023-11-01	1350.5	1347.7	1200	1239.6

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	Gauteng Top Schools 2024 (U13 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
2	2024 Gauteng Inter-Region Chess Championship (U14A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
3	West Rand vs Bojanala Inter-Regional Championships 2023 (U14)	2023-10-14	2023-10-14	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	2023 West Rand Trials (U14)	2023-09-09	2023-09-09	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
5	2023 Gauteng Top Schools (U13 Mixed)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
6	ThinkChess 3 June 2023	2023-06-03	2023-06-03	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
7	JNW Open - Trinityhouse Little Falls 2023 (C)	2023-06-24	2023-06-24	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
8	JMC Blitz - Higher Ground 2023	2023-06-17	2023-06-17	Blitz	Johannesburg Metro (GJM)	7	7	4	Yes	Analysis
9	2022 Gauteng Schools Team Championships (U11 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
10	2022 Gauteng Schools Individual Chess Championship (U11 Boys)	2022-06-18	2022-06-18	Standard	Ekurhuleni (GE)	5	4	3	Yes	Analysis
11	2018 Gauteng League Final (U9)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 5	type Standard	result 1
		Opponent Winter, S (Sebastian)				Opponent Greyling, A (Alexander)
2	4	Tournament West Rand vs Bojanala Inter-Regional Championships 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-10-14	rnd 5	type Standard	result 1	date 2024-01-13	rnd 3	type Standard	result 0.5
		Opponent Changara, A (Adiel Tavonga)				Opponent Willemse, PJ (Pierre)
3	4	Tournament JMC Blitz - Higher Ground 2023				Tournament JNW Open - Trinityhouse Little Falls 2023
		date 2023-06-17	rnd 6	type Blitz	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Hlatshwayo, S (Silindile)				Opponent Mediwane, R (Rethabile)

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 5	type Standard	result 1
		Opponent Winter, S (Sebastian)				Opponent Greyling, A (Alexander)
2	4	Tournament West Rand vs Bojanala Inter-Regional Championships 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-10-14	rnd 5	type Standard	result 1	date 2024-01-13	rnd 3	type Standard	result 0.5
		Opponent Changara, A (Adiel Tavonga)				Opponent Willemse, PJ (Pierre)
3	4	Tournament 2018 Gauteng League Final				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2018-08-24	rnd 3	type Standard	result 1	date 2022-06-18	rnd 2	type Standard	result 1
		Opponent Cannon, NC (Natalie Christene)				Opponent Ntjana, K (Kabelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 6	type Blitz	result 1	date 2023-06-17	rnd 7	type Blitz	result 1
		Opponent Hlatshwayo, S (Silindile)				Opponent Spies, B (Benjamin)
2	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 4	type Blitz	result 1	date 2023-06-17	rnd 4	type Blitz	result 1
		Opponent Samsunder, A (Aryan)				Opponent Samsunder, A (Aryan)
3	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 2	type Blitz	result 1	date 2023-06-17	rnd 2	type Blitz	result 1
		Opponent Mkulisi, P (Philisiwe)				Opponent Mkulisi, P (Philisiwe)

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 5	type Standard	result 1
		Opponent Winter, S (Sebastian)				Opponent Greyling, A (Alexander)
2	4	Tournament JMC Blitz - Higher Ground 2023				Tournament JNW Open - Trinityhouse Little Falls 2023
		date 2023-06-17	rnd 6	type Blitz	result 1	date 2023-06-24	rnd 2	type Standard	result 1
		Opponent Hlatshwayo, S (Silindile)				Opponent Mediwane, R (Rethabile)
3	4	Tournament 2018 Gauteng League Final				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2018-08-24	rnd 3	type Standard	result 1	date 2022-06-18	rnd 2	type Standard	result 1
		Opponent Cannon, NC (Natalie Christene)				Opponent Ntjana, K (Kabelo)

#	Games	Start				End
1	5	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 5	type Standard	result 1
		Opponent Winter, S (Sebastian)				Opponent Greyling, A (Alexander)
2	4	Tournament 2018 Gauteng League Final				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2018-08-24	rnd 3	type Standard	result 1	date 2022-06-18	rnd 2	type Standard	result 1
		Opponent Cannon, NC (Natalie Christene)				Opponent Ntjana, K (Kabelo)
3	3	Tournament 2023 West Rand Trials				Tournament West Rand vs Bojanala Inter-Regional Championships 2023
		date 2023-09-09	rnd 4	type Standard	result 1	date 2023-10-14	rnd 1	type Standard	result 1
		Opponent De Wet, K (Kai)				Opponent Naidoo, D (Danika)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 6	type Blitz	result 1	date 2023-06-17	rnd 7	type Blitz	result 1
		Opponent Hlatshwayo, S (Silindile)				Opponent Spies, B (Benjamin)
2	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 4	type Blitz	result 1	date 2023-06-17	rnd 4	type Blitz	result 1
		Opponent Samsunder, A (Aryan)				Opponent Samsunder, A (Aryan)
3	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 2	type Blitz	result 1	date 2023-06-17	rnd 2	type Blitz	result 1
		Opponent Mkulisi, P (Philisiwe)				Opponent Mkulisi, P (Philisiwe)

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	Naicker ,V (Victoria Angelique)	1	1	425	1	1	425	0	0	0	0	0	0
1	Naicker ,V (Victoria Angelique)	1	1029.3	1454.3	1	1016.8	1454.3	0	0	0	0	0	0
2	Swartz ,K (Kent Pierre)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Swartz ,K (Kent Pierre)	1	1464	1039	1	1455.4	1039	0	0	0	0	0	0
3	Ejimandu ,O (Odumegwu)	1	1	425	1	1	425	0	0	0	0	0	0
3	Ejimandu ,O (Odumegwu)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Mitchell ,D (Daine)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mitchell ,D (Daine)	1	1221.2	1646.2	1	1226.4	1646.2	0	0	0	0	0	0
5	Ntjana ,K (Kabelo)	1	1	425	1	1	425	0	0	0	0	0	0
5	Ntjana ,K (Kabelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Tema ,O (Ofana)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Tema ,O (Ofana)	1	1504.1	1079.1	1	1502.2	1079.1	0	0	0	0	0	0
7	Cannon ,NC (Natalie Christene)	1	1	425	1	1	425	0	0	0	0	0	0
7	Cannon ,NC (Natalie Christene)	1	1216.6	1641.6	1	1220	1641.6	0	0	0	0	0	0
8	Sehloho ,T (Thandolwethu)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Sehloho ,T (Thandolwethu)	1	1295.1	870.1	1	1285.4	870.1	0	0	0	0	0	0
9	Pieterse ,JF (Jurgens Francois)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pieterse ,JF (Jurgens Francois)	1	1416	1841	1	1422.7	1841	0	0	0	0	0	0
10	Vermeulen ,K (Kailee)	1	1	425	1	1	425	0	0	0	0	0	0
10	Vermeulen ,K (Kailee)	1	522.1	947.1	1	522.1	947.1	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

Grundling, J (Jayden)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms