Chess South Africa Ratings Database

PLAYER PAGE

Personal

Martins, J (Jana)

Chess SA id

207083509

FIDE id

Martins

Date of birth

2007-04-13 (U20)

Gender

Female

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	962.5	949.4	715.6	500
Raw rating	962.5	949.4	715.6	500
Weighted rating	959.9	949.3	715.3	500
Weighted performance	677.1	594.2	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	232.6	237	330.6	449.5
Highest rating	1200 2018-02-01	1200 2018-02-01	1208.2 2023-04-01	1200 2024-03-01
Highest raw rating	995.3 2023-05-01	954 2022-07-01	716.8 2024-03-01	500 2024-03-01
Highest weighted rating	995.3 2024-11-01	954 2024-11-01	716.8 2024-11-01	500 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1208.2 2023-04-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	962.5	949.4	715.6	500
Analysis
Rating	962.5	949.4	715.6	500
Raw rating	962.5	949.4	715.6	500
Weighted rating	959.9	949.3	715.3
Weighted performance	677.1	594.2	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	232.6	237	330.6	449.5
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	962.5	949.4	715.6	500
New weighted rating	960	949.3	715.6	500
New weighted performance	671.5	588	0	0
Temp new rating	962.5	949.4	715.6	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	962.5	949.4	715.6	500
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	0	6
	11	5	6
	10	10	0
	0	0	0
History	54	42	12

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Female
Age group	U20
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	42	13	30.95	-161.9	1162.4	1000.5
Standard	30	10	33.33	-141.7	1143.4	1001.7
Rapid	12	3	25	-212.5	1209.8	997.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	962.5	949.4	715.6	500
2025-09-30	962.5	949.4	715.6	500
2025-09-01	962.5	949.4	715.6	500
2025-08-01	962.5	949.4	715.6	500
2025-07-01	962.5	949.4	715.6	500
2025-06-01	962.5	949.4	715.6	500
2025-05-01	962.5	949.4	715.6	500
2025-04-01	962.5	949.4	715.6	500
2025-03-01	962.5	949.4	715.6	500
2025-02-01	962.2	949.4	715.6	500
2025-01-01	950.6	949.2	715.6	500
2024-12-01	950.6	949.2	715.6	500
2024-11-01	950.6	949.2	715.6	500
2024-10-01	950.6	949.2	715.6	500
2024-09-01	950.6	949.2	715.6	500
2024-08-01	950.6	949.2	715.6	500
2024-07-01	950.6	949.2	715.6	500
2024-09-01	950.6	949.2	715.6	500
2024-05-01	950.6	949.2	715.6	500
2024-04-01	983	949.2	716.8	500
2024-03-01	983	949.2	716.8	500
2024-02-01	983	949.2	716.8	500
2024-01-01	983	949.2	716.8	500
2023-12-01	983	949.2	618.8	500

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	NWU Super 16 2024	2024-04-19	2024-04-19	Rapid	Gert Sibande (MGS)	6	6	0	Yes	Analysis
2	D2 School League Finals 2023 (U19)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
3	NWU Super 16 2023 (A)	2023-04-21	2023-04-21	Rapid	Gert Sibande (MGS)	7	6	3	Yes	Analysis
4	2022 Gauteng Schools Individual Chess Championship (U15 Girls)	2022-06-18	2022-06-18	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	D2 Schools Individuals 2022 (U15 Girls)	2022-05-07	2022-05-07	Standard	West Rand (GWR)	5	5	3.5	Yes	Analysis
6	D2 League Finals 2019 (U13 Girls)	2019-08-03	2019-08-03	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
7	2019 Gauteng School League Finals (U13 Girls)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
8	D2 Schools Individuals 2018 (U11)	2018-05-19	2018-05-19	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament D2 Schools Individuals 2022				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-05-07	rnd 2	type Standard	result 1	date 2022-06-18	rnd 1	type Standard	result 1
		Opponent Van Tonder, J (Janelize)				Opponent Nemahembeni, O (Omphile Grace)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 6	type Rapid	result 1	date 2023-04-21	rnd 7	type Rapid	result 1
		Opponent Monageng, T (Takatso)				Opponent Ramothibe, J (Joy)
3	1	Tournament D2 School League Finals 2023				Tournament D2 School League Finals 2023
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-22	rnd 4	type Standard	result 1
		Opponent Khumalo, G (Goitsemodimo)				Opponent Khumalo, G (Goitsemodimo)

#	Games	Start				End
1	5	Tournament D2 Schools Individuals 2022				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-05-07	rnd 2	type Standard	result 1	date 2022-06-18	rnd 1	type Standard	result 1
		Opponent Van Tonder, J (Janelize)				Opponent Nemahembeni, O (Omphile Grace)
2	1	Tournament D2 School League Finals 2023				Tournament D2 School League Finals 2023
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-22	rnd 4	type Standard	result 1
		Opponent Khumalo, G (Goitsemodimo)				Opponent Khumalo, G (Goitsemodimo)
3	1	Tournament 2022 Gauteng Schools Individual Chess Championship				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-06-18	rnd 3	type Standard	result 1	date 2022-06-18	rnd 3	type Standard	result 1
		Opponent Harmse, L (Lizelle)				Opponent Harmse, L (Lizelle)

#	Games	Start				End
1	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 6	type Rapid	result 1	date 2023-04-21	rnd 7	type Rapid	result 1
		Opponent Monageng, T (Takatso)				Opponent Ramothibe, J (Joy)
2	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 1	type Rapid	result 1	date 2023-04-21	rnd 1	type Rapid	result 1
		Opponent Myburgh, V (Vincent)				Opponent Myburgh, V (Vincent)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2022				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-05-07	rnd 4	type Standard	result 1	date 2022-06-18	rnd 1	type Standard	result 1
		Opponent Thikhathali, V (Vhuhwavho)				Opponent Nemahembeni, O (Omphile Grace)
2	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 6	type Rapid	result 1	date 2023-04-21	rnd 7	type Rapid	result 1
		Opponent Monageng, T (Takatso)				Opponent Ramothibe, J (Joy)
3	1	Tournament D2 School League Finals 2023				Tournament D2 School League Finals 2023
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-22	rnd 4	type Standard	result 1
		Opponent Khumalo, G (Goitsemodimo)				Opponent Khumalo, G (Goitsemodimo)

#	Games	Start				End
1	3	Tournament D2 Schools Individuals 2022				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-05-07	rnd 4	type Standard	result 1	date 2022-06-18	rnd 1	type Standard	result 1
		Opponent Thikhathali, V (Vhuhwavho)				Opponent Nemahembeni, O (Omphile Grace)
2	1	Tournament D2 School League Finals 2023				Tournament D2 School League Finals 2023
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-22	rnd 4	type Standard	result 1
		Opponent Khumalo, G (Goitsemodimo)				Opponent Khumalo, G (Goitsemodimo)
3	1	Tournament 2022 Gauteng Schools Individual Chess Championship				Tournament 2022 Gauteng Schools Individual Chess Championship
		date 2022-06-18	rnd 3	type Standard	result 1	date 2022-06-18	rnd 3	type Standard	result 1
		Opponent Harmse, L (Lizelle)				Opponent Harmse, L (Lizelle)

#	Games	Start				End
1	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 6	type Rapid	result 1	date 2023-04-21	rnd 7	type Rapid	result 1
		Opponent Monageng, T (Takatso)				Opponent Ramothibe, J (Joy)
2	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 1	type Rapid	result 1	date 2023-04-21	rnd 1	type Rapid	result 1
		Opponent Myburgh, V (Vincent)				Opponent Myburgh, V (Vincent)

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	Gajee ,M (Mihir)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Gajee ,M (Mihir)	2	1229.2	804.2	0	0	0	2	1244.4	804.2	0	0	0
2	Rossouw ,T (Tarien)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Rossouw ,T (Tarien)	1	923.6	498.6	1	981.6	498.6	0	0	0	0	0	0
3	Bassie ,U (Unathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Bassie ,U (Unathi)	1	1204.4	779.4	1	1197	779.4	0	0	0	0	0	0
4	Smit ,F (Francois)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Smit ,F (Francois)	1	1211.7	786.7	1	1214.8	786.7	0	0	0	0	0	0
5	Mnguni ,A (Atlegang)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mnguni ,A (Atlegang)	1	1094.8	1519.8	1	1083.6	1519.8	0	0	0	0	0	0
6	Valoi ,G (Gina)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Valoi ,G (Gina)	1	1149.8	724.8	1	1150	724.8	0	0	0	0	0	0
7	Montsho ,T (Tumisang)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Montsho ,T (Tumisang)	1	1141.2	716.2	1	1134.8	716.2	0	0	0	0	0	0
8	Venter ,M (Melicia)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Venter ,M (Melicia)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Maseko ,U (Unathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Maseko ,U (Unathi)	1	1253.6	828.6	1	1243.7	828.6	0	0	0	0	0	0
10	Khoza ,B (Buhlebethu)	1	1	425	1	1	425	0	0	0	0	0	0
10	Khoza ,B (Buhlebethu)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Statistics

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PLAYER PAGE

Personal

Martins, J (Jana)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms