Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Heerden, M (Mia)

Chess SA id

205039930

FIDE id

Date of birth

2005-07-21 (Adult)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-01-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1371.2	1363.5	997.2	862.8
Raw rating	1371.2	1363.5	997.2	862.8
Weighted rating	1370.8	1363.1	995.8	862.8
Weighted performance	932	929.5	0	0
Floor	955.4	959.8	500	500
K-factor	32	32	40	40
Min/Max rating change allowed	129.9	131.4	221.4	268.1
Highest rating	1470.1 2023-04-01	1459.8 2023-05-01	1200 2018-01-01	1200 2024-02-01
Highest raw rating	1455.4 2023-05-01	1459.8 2023-05-01	997.2 2024-02-01	862.8 2024-02-01
Highest weighted rating	1455.4 2023-08-01	1459.8 2023-07-01	997.2 2024-11-01	862.8 2024-11-01
Highest weighted performance	1470.1 2023-04-01	1459.7 2023-04-01	1200 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1371.2	1363.5	997.2	862.8
Analysis
Rating	1371.2	1363.5	997.2	862.8
Raw rating	1371.2	1363.5	997.2	862.8
Weighted rating	1370.8	1363.1	995.8
Weighted performance	932	929.5	0
K-factor	32	32	40	40
Floor	955.4	959.8	500	500
Max/Min rating change allowed	129.9	131.4	221.4	268.1
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	1371.2	1363.5	997.2	862.8
New weighted rating	1371	1363.3	996.7	862.8
New weighted performance	931.5	929	0	0
Temp new rating	1371.2	1363.5	997.2	862.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1371.2	1363.5	997.2	862.8
New K-factor	32	32	40	40
New floor	955.4	959.8	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	2	2	0
	48	48	0
	34	34	0
	5	5	0
History	534	510	24

Games since
	Main 2	Standard 2		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult 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	244	137.5	56.35	54	1164.6	1218.6
Standard	239	135.5	56.69	56.9	1169.3	1226.2
Rapid	5	2	40	-85	943.5	858.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1371.2	1363.5	997.2	862.8
2025-09-01	1371.2	1363.5	997.2	862.8
2025-08-01	1371.2	1363.5	997.2	862.8
2025-07-01	1371.2	1363.5	997.2	862.8
2025-06-01	1371.2	1363.5	997.2	862.8
2025-05-01	1371.2	1363.5	997.2	862.8
2025-04-01	1371.2	1363.5	997.2	862.8
2025-03-01	1371.2	1363.5	997.2	862.8
2025-02-01	1371.2	1363.5	997.2	862.8
2025-01-01	1371.2	1363.5	997.2	862.8
2024-12-01	1371.2	1363.5	997.2	862.8
2024-11-01	1371.2	1363.5	997.2	862.8
2024-10-01	1371.2	1363.5	997.2	862.8
2024-09-01	1371.2	1363.5	997.2	862.8
2024-08-01	1371.2	1363.5	997.2	862.8
2024-07-01	1371.2	1363.5	997.2	862.8
2024-06-01	1371.2	1363.5	997.2	862.8
2024-08-01	1371.2	1363.5	997.2	862.8
2024-04-01	1371.2	1363.5	997.2	862.8
2024-03-01	1371.2	1363.5	997.2	862.8
2024-02-01	1371.2	1363.5	997.2	862.8
2024-01-01	1353.2	1344.6	997.2	862.8
2023-12-01	1353.2	1344.6	854.8	862.8
2023-11-01	1353.2	1344.6	854.8	862.8

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	2024 Gauteng Inter-Region Chess Championship (U20 Open+Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	2	2	Yes	Analysis
2	2023 Gauteng Top Schools (U19 Girls)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	4	2	Yes	Analysis
3	2023 SA Schools Winter Games (U18 Girls)	2023-07-04	2023-07-06	Standard	West Rand (GWR)	7	7	3.5	Yes	Analysis
4	2023 Lubowski Open Tournament (B)	2023-06-24	2023-06-25	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
5	2023 Mid Gauteng Open Tournament (B)	2023-05-06	2023-05-06	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
6	Gauteng Schools Individual Finals 2023 (U18 Girls)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
7	2023 Tshwane South School District CLOSED Individual Championships (U18 Girls)	2023-04-01	2023-04-01	Standard	Tshwane (GTP)	6	6	5	Yes	Analysis
8	National All Girls Festival 2023	2023-04-28	2023-04-30	Standard	Mangaung (FMB)	7	7	5	Yes	Analysis
9	Grey College Team Championship 2023 (A)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
10	2023 Tshwane Chess Open Registration Tournament (B1)	2023-01-28	2023-01-28	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
11	2022 South African Junior Team Chess Championships (U20 Open+Girls)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
12	2022 Alekhine Open (C)	2022-08-13	2022-08-14	Standard	Tshwane (GTP)	5	3	3	Yes	Analysis
13	South African Junior Closed Chess Championships 2022 (U18 Girls)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	10	4	Yes	Analysis
14	2022 Gauteng Interregion (U16+U18 Girls)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
15	Grey College Team Championship 2022 (A)	2022-02-18	2022-02-19	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
16	2022 Tshwane Chess Open Registration Tournament (C1)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
17	2021 Gauteng North Open Tournament (C)	2021-08-28	2021-08-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	2020 Waterkloof Open (C)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
19	2020 Tuks Open (C)	2020-02-22	2020-02-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
20	Grey College Team Championship 2020 (A)	2020-01-31	2020-02-01	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
21	2020 Registration Tournament (C)	2020-01-25	2020-01-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
22	2019 South African Top Schools Team Championships (U13+U15 Girls)	2020-01-10	2020-01-11	Standard	4 Knights (4K)	5	1	1	Yes	Analysis
23	2019 Wild Card Chess Championship (U16 Girls)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
24	2019 South African Junior Team Championships (U16-U20 Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
25	2019 Etienne Lewis Trials (U16 Girls)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	2	0	Yes	Analysis
26	2019 Gauteng School League Finals (U15 Girls)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
27	2019 Alekhine Open (C)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
28	All Girls Festival 2019	2019-05-02	2019-05-04	Standard	Cape Winelands (WCW)	9	7	4	Yes	Analysis
29	2019 Capablanca Chess Festival (C)	2019-04-19	2019-04-21	Standard	Tshwane (GTP)	7	7	4.5	Yes	Analysis
30	2019 Waterkloof Open (C)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
31	2019 South African Junior Closed Chess Championship (U14 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	2.5	Yes	Analysis
32	2019 Piet Robbertse (C)	2019-02-01	2019-02-03	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
33	2019 Tshwane Chess Registration Tournament (C)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
34	2018 Wild Card Chess Championships (U14 Girls)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
35	South African Junior Team Championships 2018 (U14B Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
36	2018 Etienne Lewis Trials (U14 Girls)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	4	1.5	Yes	Analysis
37	2018 D4 Tshwane South Schools League Finals (U13)	2018-08-03	2018-08-03	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
38	Commonwealth Chess Championships 2018	2018-06-26	2018-07-01	Standard	India (IND)	7	6	0	Yes	Analysis
39	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
40	2018 Chris Greyling Open (C)	2018-04-21	2018-04-21	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
41	2018 Capablanca Swiss (C)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
42	2018 Waterkloof Open (D)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
43	2018 Tshwane Registration Open Chess Tournament (C)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
44	South African Junior Wildcard Championships 2017 (U14 Girls)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
45	South African Junior Team Championships 2017 (U14 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Grey College Team Championship 2023				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-02-03	rnd 3	type Standard	result 1	date 2023-04-01	rnd 3	type Standard	result 1
		Opponent Poloko, T (Toano)				Opponent Struwig, C (Christelle)
2	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Rawale, KM (Margaret)				Opponent Khoza, T (Thanduxolo)
3	6	Tournament South African Junior Team Championships 2018				Tournament 2018 Wild Card Chess Championships
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-21	rnd 2	type Standard	result 0.5
		Opponent Rabkin, S (Samantha)				Opponent Petlele, M (Motheo)

#	Games	Start				End
1	6	Tournament Grey College Team Championship 2023				Tournament 2023 Tshwane South School District CLOSED Individual Championships
		date 2023-02-03	rnd 3	type Standard	result 1	date 2023-04-01	rnd 3	type Standard	result 1
		Opponent Poloko, T (Toano)				Opponent Struwig, C (Christelle)
2	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Rawale, KM (Margaret)				Opponent Khoza, T (Thanduxolo)
3	6	Tournament South African Junior Team Championships 2018				Tournament 2018 Wild Card Chess Championships
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-21	rnd 2	type Standard	result 0.5
		Opponent Rabkin, S (Samantha)				Opponent Petlele, M (Motheo)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Van Schalkwyk, JM (Jan-Maarten)				Opponent Meiring, JE (Jean)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Rawale, KM (Margaret)				Opponent Khoza, T (Thanduxolo)
2	5	Tournament South African Junior Team Championships 2018				Tournament 2018 Wild Card Chess Championships
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-21	rnd 1	type Standard	result 1
		Opponent Rabkin, S (Samantha)				Opponent Williams, L (Lucretia)
3	4	Tournament 2023 Gauteng Top Schools				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-01-13	rnd 2	type Standard	result 1
		Opponent Chauke, P (Pontsho)				Opponent Niemand, L (Luane)

#	Games	Start				End
1	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-07	rnd 6	type Standard	result 1
		Opponent Rawale, KM (Margaret)				Opponent Khoza, T (Thanduxolo)
2	5	Tournament South African Junior Team Championships 2018				Tournament 2018 Wild Card Chess Championships
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-21	rnd 1	type Standard	result 1
		Opponent Rabkin, S (Samantha)				Opponent Williams, L (Lucretia)
3	4	Tournament 2023 Gauteng Top Schools				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-08-19	rnd 3	type Standard	result 1	date 2024-01-13	rnd 2	type Standard	result 1
		Opponent Chauke, P (Pontsho)				Opponent Niemand, L (Luane)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Van Schalkwyk, JM (Jan-Maarten)				Opponent Meiring, JE (Jean)

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	Reyneke ,M (Melindie)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Reyneke ,M (Melindie)	3	1230.7	1372.4	3	1221.7	1372.4	0	0	0	0	0	0
2	De Beer ,J (Janka)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	De Beer ,J (Janka)	3	1058.7	1342.1	3	1056.5	1342.1	0	0	0	0	0	0
3	Pelser ,J (Jean-Marie)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Pelser ,J (Jean-Marie)	3	1225.1	800.1	3	1228.7	800.1	0	0	0	0	0	0
4	Riba ,KK (Khanyisile Kgaogelo)	2	2	425	2	2	425	0	0	0	0	0	0
4	Riba ,KK (Khanyisile Kgaogelo)	2	914.5	1339.5	2	910.6	1339.5	0	0	0	0	0	0
5	Reyneke ,L (Luke)	2	1	0	2	1	0	0	0	0	0	0	0
5	Reyneke ,L (Luke)	2	1396.6	1396.6	2	1383.6	1396.6	0	0	0	0	0	0
6	Lodi ,I (Isagoentle)	2	1	0	2	1	0	0	0	0	0	0	0
6	Lodi ,I (Isagoentle)	2	1298.3	1298.3	2	1281.7	1298.3	0	0	0	0	0	0
7	Hlako ,T (Tumelo)	2	1	0	2	1	0	0	0	0	0	0	0
7	Hlako ,T (Tumelo)	2	935	935	2	939	935	0	0	0	0	0	0
8	Dvir ,J (Jordan)	2	1	0	2	1	0	0	0	0	0	0	0
8	Dvir ,J (Jordan)	2	1252.8	1252.8	2	1240.2	1252.8	0	0	0	0	0	0
9	Diemieniet ,P (Phoebe)	2	2	425	2	2	425	0	0	0	0	0	0
9	Diemieniet ,P (Phoebe)	2	1087.4	1512.4	2	1102.6	1512.4	0	0	0	0	0	0
10	Thill ,A (Arieh)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Thill ,A (Arieh)	2	1202.2	777.2	2	1192.6	777.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Van Heerden, M (Mia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms