Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Net, ME (Mariel)

Chess SA id

208061285

FIDE id

Date of birth

2008-11-10 (U18)

Gender

Female

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-31

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1280	1296.6	626.2	568.6
Raw rating	1280	1296.6	626.2	568.6
Weighted rating	1270.2	1285.4	626.2	568.6
Weighted performance	1075.2	1073	0	0
Floor	839.3	835.9	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	148	144.5	375.5	407.7
Highest rating	1339.3 2022-04-01	1335.9 2022-04-01	1200 2019-12-01	1200 2024-03-01
Highest raw rating	1339.3 2022-04-01	1335.9 2022-04-01	626.2 2024-03-01	568.6 2024-03-01
Highest weighted rating	1339.3 2023-06-01	1335.9 2023-07-01	626.2 2024-11-01	568.6 2024-11-01
Highest weighted performance	1314.6 2020-02-01	1301 2020-02-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1280	1296.6	626.2	568.6
Analysis
Rating	1280	1296.6	626.2	568.6
Raw rating	1280	1296.6	626.2	568.6
Weighted rating	1270.2	1285.4	626.2
Weighted performance	1075.2	1073	0
K-factor	36	36	40	40
Floor	839.3	835.9	500	500
Max/Min rating change allowed	148	144.5	375.5	407.7
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	1280	1296.6	626.2	568.6
New weighted rating	1272.1	1287.5	626.2	568.6
New weighted performance	1074.8	1072.5	0	0
Temp new rating	1280	1296.6	626.2	568.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1280	1296.6	626.2	568.6
New K-factor	36	36	40	40
New floor	839.3	835.9	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	14	14	0
	19	14	5
	10	10	0
	0	0	0
History	330	325	5

Games since
	Main 14	Standard 14		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-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	168	92.5	55.06	43	1075.4	1118.4
Standard	163	90.5	55.52	46.9	1073.4	1120.3
Rapid	5	2	40	-85	1142.8	1057.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1280	1296.6	626.2	568.6
2025-09-01	1280	1296.6	626.2	568.6
2025-08-01	1280	1296.6	626.2	568.6
2025-07-01	1280	1296.6	626.2	568.6
2025-06-01	1280	1296.6	626.2	568.6
2025-05-01	1280	1296.6	626.2	568.6
2025-04-01	1280	1296.6	626.2	568.6
2025-03-01	1280	1296.6	626.2	568.6
2025-02-01	1280	1296.6	626.2	568.6
2025-01-01	1280	1296.6	626.2	568.6
2024-12-01	1280	1296.6	626.2	568.6
2024-11-01	1280	1296.6	626.2	568.6
2024-10-01	1280	1296.6	626.2	568.6
2024-09-01	1241.5	1251.6	626.2	568.6
2024-08-01	1241.5	1251.6	626.2	568.6
2024-07-01	1241.5	1251.6	626.2	568.6
2024-06-01	1241.5	1251.6	626.2	568.6
2024-08-01	1241.5	1251.6	626.2	568.6
2024-04-01	1241.5	1251.6	626.2	568.6
2024-03-01	1213.4	1223.2	626.2	568.6
2024-02-01	1213.4	1223.2	626.2	568.6
2024-01-01	1218.5	1229.3	626.2	568.6
2023-12-01	1218.5	1229.3	626.2	568.6
2023-11-01	1218.5	1229.3	626.2	568.6

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	North School Primary Chess Open 2024 (B)	2024-08-31	2024-08-31	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
2	Valia's Open 2024 (C)	2024-03-02	2024-03-02	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	2024 Gauteng Inter-Region Chess Championship (U16 Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
4	Fonteine Chess Open 2023 (C)	2023-09-02	2023-09-02	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
5	Eureka Open 2023 (C)	2023-07-29	2023-07-29	Standard	Sedibeng (GSV)	5	4	0.5	Yes	Analysis
6	VaalPark Primary Open Chess 2023 (B)	2023-06-16	2023-06-16	Rapid	Sedibeng (GSV)	5	5	2	Yes	Analysis
7	Hoerskool Drie Riviere Open 2023 (C)	2023-03-11	2023-03-11	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
8	Eureka Open 2022 (C)	2022-07-30	2022-07-30	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
9	Carel`s Chess Open 2022 (C)	2022-03-05	2022-03-05	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
10	Carel`s Open 2020 (C)	2020-02-29	2020-02-29	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
11	2019 South African Junior Team Championships (U12C)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
12	Eagles Open 2019 (C)	2019-11-23	2019-11-23	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
13	Fonteine Ope 2019 (C)	2019-10-19	2019-10-19	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
14	GE vs GSV Inter Regional 2019 (U12C)	2019-10-26	2019-10-26	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
15	LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (C)	2019-08-31	2019-08-31	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
16	Eureka Chess Open 2019 (C)	2019-07-27	2019-07-27	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis
17	Vaal Chess Club Open 2019 (C)	2019-06-01	2019-06-01	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
18	Overvaal Chess Open 2019 (C)	2019-06-15	2019-06-15	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
19	Amigo Spur Eligwa Chess Open 2019 (C)	2019-05-18	2019-05-18	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
20	Dirk de Koster Chess Open 2019 (C)	2019-04-13	2019-04-13	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
21	Carels Open 2019 (D)	2019-03-02	2019-03-02	Standard	Sedibeng (GSV)	5	5	2.5	Yes	Analysis
22	South African Junior Team Championships 2018 (U12A Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
23	2018 Interregion Sedibeng vs Ekurhuleni (G)	2018-11-03	2018-11-03	Standard	Sedibeng (GSV)	5	5	1.5	Yes	Analysis
24	Henley Open 2018 (C)	2018-09-08	2018-09-08	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
25	Eureka Chess Open 2018 (B)	2018-09-29	2018-09-29	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
26	Dr Pieter Hangelbroek Ope 2018 (E+F)	2018-09-01	2018-09-01	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
27	Sasolburg Open 2018 (C)	2018-06-02	2018-06-02	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
28	Broadland`s Knights Chess Open 2018 (C)	2018-06-16	2018-06-16	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
29	Word of Life Open 2018 (D)	2018-05-12	2018-05-12	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
30	Amigo Spur Eligwa Chess Open 2018 (C)	2018-05-19	2018-05-19	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
31	Henley Open 2018 (C)	2018-03-10	2018-03-10	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
32	Carels Open 2018 (D)	2018-03-03	2018-03-03	Standard	Sedibeng (GSV)	5	5	4	Yes	Analysis
33	South African Junior Team Championships 2017 (U10C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Broadland`s Knights Chess Open 2018				Tournament Henley Open 2018
		date 2018-06-16	rnd 3	type Standard	result 0.5	date 2018-09-08	rnd 1	type Standard	result 1
		Opponent Diedericks, E (Ethan)				Opponent Mokwanazi, O (Onthathile)
2	7	Tournament Eagles Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-11-23	rnd 5	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Mayers, G (Gezenka)				Opponent Jacobs, S (Sensemecia)
3	6	Tournament Carel`s Open 2020				Tournament Carel`s Chess Open 2022
		date 2020-02-29	rnd 4	type Standard	result 1	date 2022-03-05	rnd 4	type Standard	result 1
		Opponent Mjekelejo, L (Luvuyo)				Opponent Botha, OJ (Owen)

#	Games	Start				End
1	9	Tournament Broadland`s Knights Chess Open 2018				Tournament Henley Open 2018
		date 2018-06-16	rnd 3	type Standard	result 0.5	date 2018-09-08	rnd 1	type Standard	result 1
		Opponent Diedericks, E (Ethan)				Opponent Mokwanazi, O (Onthathile)
2	7	Tournament Eagles Open 2019				Tournament 2019 South African Junior Team Championships
		date 2019-11-23	rnd 5	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Mayers, G (Gezenka)				Opponent Jacobs, S (Sensemecia)
3	6	Tournament Carel`s Open 2020				Tournament Carel`s Chess Open 2022
		date 2020-02-29	rnd 4	type Standard	result 1	date 2022-03-05	rnd 4	type Standard	result 1
		Opponent Mjekelejo, L (Luvuyo)				Opponent Botha, OJ (Owen)

#	Games	Start				End
1	1	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 4	type Rapid	result 1	date 2023-06-16	rnd 4	type Rapid	result 1
		Opponent Toutountzakis, C (Conrad)				Opponent Toutountzakis, C (Conrad)
2	1	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 1	type Rapid	result 1	date 2023-06-16	rnd 1	type Rapid	result 1
		Opponent Moholi, N (Ntsane)				Opponent Moholi, N (Ntsane)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Carel`s Open 2020				Tournament Carel`s Chess Open 2022
		date 2020-02-29	rnd 4	type Standard	result 1	date 2022-03-05	rnd 4	type Standard	result 1
		Opponent Mjekelejo, L (Luvuyo)				Opponent Botha, OJ (Owen)
2	4	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-05	rnd 3	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Stoltz, J (Jenog)				Opponent Jacobs, S (Sensemecia)
3	4	Tournament Overvaal Chess Open 2019				Tournament Overvaal Chess Open 2019
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Malefane, P (Praise)				Opponent Nel, A (Altus)

#	Games	Start				End
1	6	Tournament Carel`s Open 2020				Tournament Carel`s Chess Open 2022
		date 2020-02-29	rnd 4	type Standard	result 1	date 2022-03-05	rnd 4	type Standard	result 1
		Opponent Mjekelejo, L (Luvuyo)				Opponent Botha, OJ (Owen)
2	4	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-05	rnd 3	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Stoltz, J (Jenog)				Opponent Jacobs, S (Sensemecia)
3	4	Tournament Overvaal Chess Open 2019				Tournament Overvaal Chess Open 2019
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 4	type Standard	result 1
		Opponent Malefane, P (Praise)				Opponent Nel, A (Altus)

#	Games	Start				End
1	1	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 4	type Rapid	result 1	date 2023-06-16	rnd 4	type Rapid	result 1
		Opponent Toutountzakis, C (Conrad)				Opponent Toutountzakis, C (Conrad)
2	1	Tournament VaalPark Primary Open Chess 2023				Tournament VaalPark Primary Open Chess 2023
		date 2023-06-16	rnd 1	type Rapid	result 1	date 2023-06-16	rnd 1	type Rapid	result 1
		Opponent Moholi, N (Ntsane)				Opponent Moholi, N (Ntsane)

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	Farrell ,J (Jonty)	4	4	425	4	4	425	0	0	0	0	0	0
1	Farrell ,J (Jonty)	4	1158.5	1583.5	4	1147	1583.5	0	0	0	0	0	0
2	Naude ,E (Enrique)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Naude ,E (Enrique)	3	1062.2	637.2	3	1068.6	637.2	0	0	0	0	0	0
3	Van Wyk ,J (Jonathan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Van Wyk ,J (Jonathan)	3	949	807.4	3	941.7	807.4	0	0	0	0	0	0
4	De Lange ,J (Janco)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	De Lange ,J (Janco)	2	971.5	546.5	2	970	546.5	0	0	0	0	0	0
5	Williams ,A (Anika)	2	2	425	2	2	425	0	0	0	0	0	0
5	Williams ,A (Anika)	2	1153.9	1578.9	2	1155.7	1578.9	0	0	0	0	0	0
6	Drotsky ,R (Reynhardt)	2	2	425	2	2	425	0	0	0	0	0	0
6	Drotsky ,R (Reynhardt)	2	1271.6	1696.6	2	1263.5	1696.6	0	0	0	0	0	0
7	Khumalo ,N (Nkosinathi)	2	1	0	2	1	0	0	0	0	0	0	0
7	Khumalo ,N (Nkosinathi)	2	947.6	947.6	2	954.3	947.6	0	0	0	0	0	0
8	Mollo ,L (Lesego)	2	2	425	2	2	425	0	0	0	0	0	0
8	Mollo ,L (Lesego)	2	1164.2	1589.2	2	1156.6	1589.2	0	0	0	0	0	0
9	Malefane ,P (Praise)	2	2	425	2	2	425	0	0	0	0	0	0
9	Malefane ,P (Praise)	2	1159.7	1584.7	2	1150.6	1584.7	0	0	0	0	0	0
10	Buthelezi ,S (Sihle)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Buthelezi ,S (Sihle)	2	1226.4	1013.9	2	1211.8	1013.9	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 Der Net, ME (Mariel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms