Player Page

Martins, J (Jana)
Dob: 2007/04/13 (U18)
Gender: Female
Chess SA id: 207083509
FIDE id: Martins
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/04/19 (68 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating950.6
Current Weighted rating974.9
Current Weighted performance841.4
Current official/published rating (highest between Raw, WR and WP)974.9
Current highest rating achieved995.3
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±236.6
Current Raw change used (final)0.0
Projected new Raw rating950.6
Projected new Weighed rating897.2
Projected new Weighted performance841.4
Projected new final Raw rating (if new WP > new Raw)950.6
Projected new highest rating995.3
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)950.6
Projected effective change (new Official - current Official)-24.3
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating949.2
Current Weighted rating950.4
Current Weighted performance774.6
Current official/published rating (highest between Raw, WR and WP)950.4
Current highest rating achieved954.0
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±237.0
Current Raw change used (final)0.0
Projected new Raw rating949.2
Projected new Weighed rating874.3
Projected new Weighted performance774.6
Projected new final Raw rating (if new WP > new Raw)949.2
Projected new highest rating954.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)949.2
Projected effective change (new Official - current Official)-1.2
s
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating715.6
Current Weighted rating642.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)715.6
Current highest rating achieved716.8
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±330.6
Current Raw change used (final)0.0
Projected new Raw rating715.6
Projected new Weighed rating595.0
Projected new Weighted performance531.4
Projected new final Raw rating (if new WP > new Raw)715.6
Projected new highest rating716.8
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)715.6
Projected effective change (new Official - current Official)=0.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating500.0
Current Weighted rating500.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)500.0
Current highest rating achieved500.0
Current floor (min rating allowed)500.0
Current K-factor40
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±449.5
Current Raw change used (final)0.0
Projected new Raw rating500.0
Projected new Weighed rating460.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating500.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)500.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 0.0 983.0 716.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
8 NWU Super 16 2024 2024/04/19 2024/04/19 Gert Sibande (MGS) Rapid 30 0.60 6 6 0.0 983.0 716.8 Analysis
7 D2 School League Finals 2023 (U19) 2023/07/22 2023/07/22 West Rand (GWR) Standard 60 0.83 5 5 1.0 995.3 954.0 Analysis
6 NWU Super 16 2023 (A) 2023/04/21 2023/04/21 Gert Sibande (MGS) Rapid 30 0.60 7 6 3.0 953.5 500.0 Analysis
5 2022 Gauteng Schools Individual Chess Championship (U15 Girls) 2022/06/18 2022/06/18 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 697.8 740.0 Analysis
4 D2 Schools Individuals 2022 (U15 Girls) 2022/05/07 2022/05/07 West Rand (GWR) Standard 60 0.83 5 5 3.5 582.3 600.8 Analysis
3 2019 Gauteng School League Finals (U13 Girls) 2019/08/23 2019/08/23 Tshwane (GTP) Standard 60 0.83 5 5 1.0 502.0 502.4 Analysis
2 D2 League Finals 2019 (U13 Girls) 2019/08/03 2019/08/03 West Rand (GWR) Standard 60 0.83 5 5 1.5 502.0 502.4 Analysis
1 D2 Schools Individuals 2018 (U11) 2018/05/19 2018/05/19 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 500.0 500.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 6 0 0 6 0.0 0.0 -425.0 1219.6 794.6
White 3 0 0 3 0.0 0.0 -425.0 1215.3 790.3
Black 3 0 0 3 0.0 0.0 -425.0 1223.9 798.9
Standard All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Rapid All 6 0 0 6 0.0 0.0 -425.0 1219.6 794.6
White 3 0 0 3 0.0 0.0 -425.0 1215.3 790.3
Black 3 0 0 3 0.0 0.0 -425.0 1223.9 798.9
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 42 11 4 27 13.0 31.0 -161.9 1162.4 1000.5
White 19 5 0 14 5.0 26.3 -201.3 1154.7 953.4
Black 23 6 4 13 8.0 34.8 -129.3 1168.7 1039.3
Standard All 30 8 4 18 10.0 33.3 -141.7 1143.4 1001.7
White 13 4 0 9 4.0 30.8 -163.5 1130.3 966.9
Black 17 4 4 9 6.0 35.3 -125.0 1153.4 1028.4
Rapid All 12 3 0 9 3.0 25.0 -212.5 1209.8 997.3
White 6 1 0 5 1.0 16.7 -283.3 1207.6 924.3
Black 6 2 0 4 2.0 33.3 -141.7 1212.0 1070.3
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1070154363 Gajee, M (Mihir) 2 0.0 0 0 2 0.0 968.3 -425.0 543.3 View list
2 2070117337 Mpofu, MN (Mandy) 1 1.0 1 0 0 100.0 502.0 425.0 927.0 View list
3 1060117318 Khumalo, G (Goitsemodimo) 1 1.0 1 0 0 100.0 995.3 425.0 1420.3 View list
4 2080118221 Khoza, B (Buhlebethu) 1 1.0 1 0 0 100.0 502.0 425.0 927.0 View list
5 2080112254 Harmse, L (Lizelle) 1 1.0 1 0 0 100.0 697.8 425.0 1122.8 View list
6 1080154384 Monageng, T (Takatso) 1 1.0 1 0 0 100.0 953.5 425.0 1378.5 View list
7 207083539 Mnguni, A (Atlegang) 1 1.0 1 0 0 100.0 582.3 425.0 1007.3 View list
8 1060154386 Myburgh, V (Vincent) 1 1.0 1 0 0 100.0 953.5 425.0 1378.5 View list
9 2080191698 Nemahembeni, O (Omphile Grace) 1 1.0 1 0 0 100.0 697.8 425.0 1122.8 View list
10 2060154392 Ramothibe, J (Joy) 1 1.0 1 0 0 100.0 953.5 425.0 1378.5 View list
11 2070136213 Thikhathali, V (Vhuhwavho) 1 1.0 1 0 0 100.0 582.3 425.0 1007.3 View list
12 2080102521 Van Tonder, J (Janelize) 1 1.0 1 0 0 100.0 582.3 425.0 1007.3 View list
13 2070140276 Mbolongwe, N (Nonhlanhla) 1 0.5 0 1 0 50.0 582.3 0.0 582.3 View list
14 2080117344 Rasimate, N (Ntsako) 1 0.5 0 1 0 50.0 502.0 0.0 502.0 View list
15 2070100941 Van Wyk, C (Cloudin) 1 0.5 0 1 0 50.0 500.0 0.0 500.0 View list
16 208078735 Visser, K (Kayla) 1 0.5 0 1 0 50.0 500.0 0.0 500.0 View list
17 2080143481 Mutungwazi, G (Gladys) 1 0.0 0 0 1 0.0 697.8 -425.0 272.8 View list
18 1060140283 Montsho, T (Tumisang) 1 0.0 0 0 1 0.0 995.3 -425.0 570.3 View list
19 1080302239 Mhlongo, G (Godfrey) 1 0.0 0 0 1 0.0 983.0 -425.0 558.0 View list
20 207067880 Graaff, C (Christel) 1 0.0 0 0 1 0.0 500.0 -425.0 75.0 View list