Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Lange, M (Marcel)

Chess SA id

1150139955

FIDE id

Date of birth

2015-05-25 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1222.8	1224.4	1200	1200
Raw rating	1221	1222.2	1200	1200
Weighted rating	1222.8	1224.4	1200	1200
Weighted performance	947.2	946.4	0	0
Floor	735.8	743.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.9	160.7	165.8	165.8
Highest rating	1245.7 2023-05-01	1247.1 2023-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1235.8 2023-06-01	1243.4 2023-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1235.8 2024-07-01	1243.4 2024-07-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1245.7 2023-05-01	1247.1 2023-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.3	-0.4	0	0
New rating	1222.4	1224	1200	1200
Analysis
Rating	1222.8	1224.4	1200	1200
Raw rating	1221	1222.2	1200	1200
Weighted rating	1222.8	1224.4	1200
Weighted performance	947.2	946.4	0
K-factor	36	36	36	36
Floor	735.8	743.4	700	700
Max/Min rating change allowed	160.9	160.7	165.8	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	1221	1222.2	1200	1200
New weighted rating	1222.4	1224	1200	1200
New weighted performance	946.8	946	0	0
Temp new rating	1222.4	1224	1200	1200
Temp new rating +/-	-0.3	-0.4	0	0
Final new rating +/-	-0.3	-0.4	0	0
New rating	1222.4	1224	1200	1200
New K-factor	36	36	36	36
New floor	735.8	743.4	700	700

Item	Main	Standard
	0	0
	5	5
	5	5
	14	14
	10	10
	0	0
History	34	34

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	5	1	20	-255	1271	1016
Standard	5	1	20	-255	1271	1016
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	34	16	47.06	-25	1226.6	1201.6
Standard	34	16	47.06	-25	1226.6	1201.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1221	1222.2	1200	1200
2025-09-01	1221	1222.2	1200	1200
2025-08-01	1221	1222.2	1200	1200
2025-07-01	1224.7	1226.9	1200	1200
2025-06-01	1224.7	1226.9	1200	1200
2025-05-01	1224.7	1226.9	1200	1200
2025-04-01	1224.7	1226.9	1200	1200
2025-03-01	1224.7	1226.9	1200	1200
2025-02-01	1224.2	1226.3	1200	1200
2025-01-01	1215.8	1215.3	1200	1200
2024-12-01	1215.8	1215.3	1200	1200
2024-11-01	1215.8	1215.3	1200	1200
2024-10-01	1215.8	1215.3	1200	1200
2024-09-01	1215.8	1215.3	1200	1200
2024-08-01	1215.8	1215.3	1200	1200
2024-07-01	1232.5	1236.9	1200	1200
2024-06-01	1232.5	1236.9	1200	1200
2024-08-01	1232.5	1236.9	1200	1200
2024-04-01	1232.5	1236.9	1200	1200
2024-03-01	1232.5	1236.9	1200	1200
2024-02-01	1232.5	1236.9	1200	1200
2024-01-01	1232.5	1236.9	1200	1200
2023-12-01	1232.5	1236.9	1200	1200
2023-11-01	1232.5	1236.9	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 Tshwane North School District Cluster 4 & 5 Team League (D3) (U11)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U11)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
2	2024 Tshwane North School District Cluster 4 & 5 Team League (U9)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
3	2023 Gauteng Top Schools (U9 Mixed)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	4	1.5	Yes	Analysis
4	2023 Tshwane North School District CLOSED League Championships (D3)	2023-08-12	2023-08-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2023 Tshwane North School District CLOSED Individual Championships (D3)	2023-05-13	2023-05-13	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
6	2022 Gauteng Schools Team Championships (U9 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
7	2022 D3 Cluster City Schools (U9)	2022-04-23	2022-04-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2022 Gauteng Schools Team Championships				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2022-08-27	rnd 5	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Grobler, N (Neil Jacobus)				Opponent Marais, L (Luke)
2	3	Tournament 2022 D3 Cluster City Schools				Tournament 2022 Gauteng Schools Team Championships
		date 2022-04-23	rnd 5	type Standard	result 0.5	date 2022-08-27	rnd 2	type Standard	result 0.5
		Opponent Van Staden, O (Oneill)				Opponent Froneman, R (Reinard)
3	2	Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2024-07-20	rnd 5	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 0.5
		Opponent Stoman, D (Danielle)				Opponent Mentz, A (Adriaan)

#	Games	Start				End
1	5	Tournament 2022 Gauteng Schools Team Championships				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2022-08-27	rnd 5	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Grobler, N (Neil Jacobus)				Opponent Marais, L (Luke)
2	3	Tournament 2022 D3 Cluster City Schools				Tournament 2022 Gauteng Schools Team Championships
		date 2022-04-23	rnd 5	type Standard	result 0.5	date 2022-08-27	rnd 2	type Standard	result 0.5
		Opponent Van Staden, O (Oneill)				Opponent Froneman, R (Reinard)
3	2	Tournament 2024 Tshwane North School District Cluster 4 & 5 Team League				Tournament 2025 Tshwane North School District Cluster 4 & 5 Team League (D3)
		date 2024-07-20	rnd 5	type Standard	result 1	date 2025-07-26	rnd 1	type Standard	result 0.5
		Opponent Stoman, D (Danielle)				Opponent Mentz, A (Adriaan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2023 Tshwane North School District CLOSED Individual Championships				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Motaung, T (Tshegofatso)				Opponent Marais, L (Luke)
2	2	Tournament 2023 Tshwane North School District CLOSED League Championships				Tournament 2023 Tshwane North School District CLOSED League Championships
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-12	rnd 5	type Standard	result 1
		Opponent Venter, H (Heidi)				Opponent Mahlangu, M (Mbalientle)
3	2	Tournament 2022 D3 Cluster City Schools				Tournament 2022 D3 Cluster City Schools
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 2	type Standard	result 1
		Opponent Stoltz, K (Kiara)				Opponent Minnaar, L (Levi)

#	Games	Start				End
1	3	Tournament 2023 Tshwane North School District CLOSED Individual Championships				Tournament 2023 Tshwane North School District CLOSED Individual Championships
		date 2023-05-13	rnd 2	type Standard	result 1	date 2023-05-13	rnd 4	type Standard	result 1
		Opponent Motaung, T (Tshegofatso)				Opponent Marais, L (Luke)
2	2	Tournament 2023 Tshwane North School District CLOSED League Championships				Tournament 2023 Tshwane North School District CLOSED League Championships
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-12	rnd 5	type Standard	result 1
		Opponent Venter, H (Heidi)				Opponent Mahlangu, M (Mbalientle)
3	2	Tournament 2022 D3 Cluster City Schools				Tournament 2022 D3 Cluster City Schools
		date 2022-04-23	rnd 1	type Standard	result 1	date 2022-04-23	rnd 2	type Standard	result 1
		Opponent Stoltz, K (Kiara)				Opponent Minnaar, L (Levi)

No games found.

#	Games	Start				End

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	Froneman ,R (Reinard)	2	1	0	2	1	0	0	0	0	0	0	0
1	Froneman ,R (Reinard)	2	1237.3	1237.3	2	1244.4	1237.3	0	0	0	0	0	0
2	Erasmus ,T (Trisa)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Erasmus ,T (Trisa)	2	1407.9	982.9	2	1407	982.9	0	0	0	0	0	0
3	Roberts ,F (Frans-Leigh)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Roberts ,F (Frans-Leigh)	1	1307.1	882.1	1	1303.5	882.1	0	0	0	0	0	0
4	Dreyer ,K (Kruger)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Dreyer ,K (Kruger)	1	1214.6	789.6	1	1218.2	789.6	0	0	0	0	0	0
5	Stoman ,D (Danielle)	1	1	425	1	1	425	0	0	0	0	0	0
5	Stoman ,D (Danielle)	1	1185.4	1610.4	1	1182.4	1610.4	0	0	0	0	0	0
6	Du Preez ,L (Lourens)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Du Preez ,L (Lourens)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Stoltz ,K (Kiara)	1	1	425	1	1	425	0	0	0	0	0	0
7	Stoltz ,K (Kiara)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Pretorius ,P (Phillip)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Pretorius ,P (Phillip)	1	1346.8	921.8	1	1338.8	921.8	0	0	0	0	0	0
9	Van Staden ,O (Oneill)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Van Staden ,O (Oneill)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
10	Haupt ,A (Abigail)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Haupt ,A (Abigail)	1	1264.8	839.8	1	1253.9	839.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Lange, M (Marcel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms