Player Page

Marais, J (Janike)
Dob: 2010/06/29 (U16)
Gender: Female
Chess SA id: 2100133964
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2024/03/02 (72 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
Curent Raw rating1276.3
Curent Weighted rating1250.0
Curent Weighted performance1200.1
Current official/published rating (highest between Raw, WR and WP)1276.3
Current floor (min rating allowed)776.3
Current highest rating achieved1276.3
Current K-factor36
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)±148.7
Current Raw change used (final)0.0
Projected new Raw rating1276.3
Projected new Weighed rating1252.8
Projected new Weighted performance1200.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1276.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1276.3
Projected new floor776.3
Projected new K-facor36
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
Curent Raw rating1256.9
Curent Weighted rating1239.4
Curent Weighted performance1113.2
Current official/published rating (highest between Raw, WR and WP)1256.9
Current floor (min rating allowed)756.9
Current highest rating achieved1256.9
Current K-factor36
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)±152.9
Current Raw change used (final)0.0
Projected new Raw rating1256.9
Projected new Weighed rating1241.5
Projected new Weighted performance1113.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1256.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1256.9
Projected new floor756.9
Projected new K-facor36
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
Curent Raw rating1271.5
Curent Weighted rating1269.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1271.5
Current floor (min rating allowed)778.0
Current highest rating achieved1278.0
Current K-factor36
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)±149.8
Current Raw change used (final)0.0
Projected new Raw rating1271.5
Projected new Weighed rating1269.5
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1271.5
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1278.0
Projected new floor778.0
Projected new K-facor36
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
Curent Raw rating1168.4
Curent Weighted rating1170.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1170.6
Current floor (min rating allowed)778.0
Current highest rating achieved1168.4
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)±173.5
Current Raw change used (final)0.0
Projected new Raw rating1168.4
Projected new Weighed rating1170.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1170.0
Projected effective change (new Official - current Official)-0.6
Projected new highest rating1168.4
Projected new floor778.0
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Kempton Park Cluster Individuals 2024 (U15+U18 Girls) 2024/03/02 2024/03/02 Ekurhuleni (GE) Rapid 30 0.60 5 5 3.0 1263.8 1266.1 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
19 Kempton Park Cluster Individuals 2024 (U15+U18 Girls) 2024/03/02 2024/03/02 Ekurhuleni (GE) Rapid 30 0.60 5 5 3.0 1263.8 1266.1 Analysis
18 Ekurhuleni Chess Trial 3 2023 (U14) 2023/06/17 2023/06/17 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1220.2 1202.5 Analysis
17 Gauteng Open Arnold Classic 2023 (U16) 2023/05/19 2023/05/19 Tshwane (GTP) Rapid 30 0.60 5 5 3.0 1190.7 1278.0 Analysis
16 Ekurhuleni North Schools Individual Finals 2023 (U13 Girls) 2023/05/12 2023/05/12 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1190.7 1184.1 Analysis
15 Ekurhuleni Trials 2 2023 (U14) 2023/04/22 2023/04/22 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1171.3 1159.6 Analysis
14 2022 South Africa Junior Blitz Chess Championships (U14) 2022/12/05 2022/12/05 4 Knights (4K) Blitz 5 0.18 7 7 3.0 1249.6 1200.0 Analysis
13 2022 South African Junior Team Chess Championships (U14-U18 Girls) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 6 1.0 1249.6 1232.7 Analysis
12 ACB Tournament 2022 (C) 2022/10/08 2022/10/08 Ekurhuleni (GE) Standard 60 0.83 5 4 2.0 1252.3 1233.1 Analysis
11 2022 Gauteng Schools Team Championships (U13 Open) 2022/08/27 2022/08/27 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1257.7 1233.5 Analysis
10 Ekurhuleni-North Schools Teams 2022 (U13) 2022/08/06 2022/08/06 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1257.7 1233.5 Analysis
9 RMS Swiss For Rating of Players 2022 (U13) 2022/05/28 2022/05/28 Ekurhuleni (GE) Rapid 30 0.60 7 6 5.0 1174.2 1200.0 Analysis
8 Ekurhuleni-North Schools Finals Indiv 2022 (U13 Girls) 2022/05/13 2022/05/13 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1174.2 1168.0 Analysis
7 Ekurhuleni Trials 1 2022 (U14) 2022/04/23 2022/04/23 Ekurhuleni (GE) Standard 62 0.84 5 5 2.0 1198.1 1198.4 Analysis
6 ACB Premier 2022 (U13) 2022/03/21 2022/03/21 Ekurhuleni (GE) Standard 60 0.83 7 5 2.5 1147.0 1132.0 Analysis
5 ACB Premier 2022 (Primary School) 2022/03/19 2022/03/19 Ekurhuleni (GE) Standard 60 0.83 5 5 3.5 1147.0 1132.0 Analysis
4 2022 Gauteng Interregion (U12 Open) 2022/02/26 2022/02/26 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1148.3 1131.6 Analysis
3 Ekurhuleni Trials (3) 2021 (U12) 2021/11/06 2021/11/06 Ekurhuleni (GE) Standard 62 0.84 5 5 2.0 1167.8 1160.4 Analysis
2 Ekurhuleni North Schools Individual 2021 (D) 2021/09/11 2021/09/11 Ekurhuleni (GE) Standard 60 0.83 5 4 2.0 1168.8 1160.0 Analysis
1 Ekurhuleni Chess Chessa Open 2021 (C) 2021/03/27 2021/03/27 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 3 0 2 3.0 60.0 85.0 1269.2 1354.2
White 2 1 0 1 1.0 50.0 0.0 1174.3 1174.3
Black 3 2 0 1 2.0 66.7 141.7 1332.4 1474.1
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 5 3 0 2 3.0 60.0 85.0 1269.2 1354.2
White 2 1 0 1 1.0 50.0 0.0 1174.3 1174.3
Black 3 2 0 1 2.0 66.7 141.7 1332.4 1474.1
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 96 50 3 43 51.5 53.6 31.0 1199.5 1230.5
White 48 29 1 18 29.5 61.5 97.4 1186.0 1283.4
Black 48 21 2 25 22.0 45.8 -35.4 1213.0 1177.5
Standard All 73 36 3 34 37.5 51.4 11.6 1193.1 1204.8
White 38 21 1 16 21.5 56.6 55.9 1192.2 1248.1
Black 35 15 2 18 16.0 45.7 -36.4 1194.1 1157.7
Rapid All 16 11 0 5 11.0 68.8 159.4 1203.1 1362.5
White 7 5 0 2 5.0 71.4 182.1 1177.8 1359.9
Black 9 6 0 3 6.0 66.7 141.7 1222.9 1364.5
Blitz All 7 3 0 4 3.0 42.9 -60.7 1257.1 1196.4
White 3 3 0 0 3.0 100.0 425.0 1126.0 1551.0
Black 4 0 0 4 0.0 0.0 -425.0 1355.4 930.4
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2100097359 Bothma, J (Jaculene) 3 1.0 1 0 2 33.3 1170.3 -141.7 1028.6 View list
2 2110107822 Myburgh, M (Melinda) 2 2.0 2 0 0 100.0 1205.5 425.0 1630.5 View list
3 1090139531 Abbott, J (Janco) 2 1.0 1 0 1 50.0 1202.3 0.0 1202.3 View list
4 2100109361 Pillay, K (Ketana) 2 0.0 0 0 2 0.0 1253.7 -425.0 828.7 View list
5 2090100211 Sebogoane, T (Thoriso) 2 0.0 0 0 2 0.0 1202.3 -425.0 777.3 View list
6 2100142780 Sibabyoni, N (Nonhle) 1 1.0 1 0 1 100.0 1174.2 425.0 1599.2 View list
7 1100141144 Boucher, R (Ryann) 1 1.0 1 0 0 100.0 1249.6 425.0 1674.6 View list
8 1120116463 Bosman, J (Johan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
9 2110130061 Benadie, M (Megan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 2080136095 Allen, J (Julia) 1 1.0 1 0 0 100.0 1249.6 425.0 1674.6 View list
11 109081022 Cass, M (Matthew) 1 1.0 1 0 0 100.0 1198.1 425.0 1623.1 View list
12 1110102534 Esterhuizen, Z (Zane) 1 1.0 1 0 0 100.0 1148.3 425.0 1573.3 View list
13 1100096323 Du Preez, J (Juan) 1 1.0 1 0 0 100.0 1174.2 425.0 1599.2 View list
14 2110155100 Du Plessis, M (Mieke) 1 1.0 1 0 0 100.0 1190.7 425.0 1615.7 View list
15 1100142730 Dos Santos, C (Calum) 1 1.0 1 0 0 100.0 1257.7 425.0 1682.7 View list
16 207053339 Devenish, T (Tara-Jane) 1 1.0 1 0 0 100.0 1249.6 425.0 1674.6 View list
17 2100139538 Fritz, L (Lucy) 1 1.0 1 0 0 100.0 1190.7 425.0 1615.7 View list
18 1090142562 Fernandez, J (Jarred) 1 1.0 1 0 0 100.0 1257.7 425.0 1682.7 View list
19 1100111981 Hattingh, K (Kale) 1 1.0 1 0 0 100.0 1171.3 425.0 1596.3 View list
20 1090139542 Hlongwa, D (Dimakatso) 1 1.0 1 0 0 100.0 1147.0 425.0 1572.0 View list