Player Page

Van Der Merwe, J (Janka)
Dob: 2012/09/18 (U14)
Gender: Female
Chess SA id: 2120108356
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2020/02/08 (1749 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 rating816.0
Current Weighted rating816.0
Current Weighted performance285.2
Current official/published rating (highest between Raw, WR and WP)816.0
Current highest rating achieved1198.7
Current floor (min rating allowed)698.7
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)±286.6
Current Raw change used (final)0.0
Projected new Raw rating816.0
Projected new Weighed rating750.7
Projected new Weighted performance285.2
Projected new final Raw rating (if new WP > new Raw)816.0
Projected new highest rating1198.7
Projected new floor698.7
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)816.0
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 rating790.8
Current Weighted rating790.8
Current Weighted performance285.2
Current official/published rating (highest between Raw, WR and WP)790.8
Current highest rating achieved1198.4
Current floor (min rating allowed)698.4
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)±297.0
Current Raw change used (final)0.0
Projected new Raw rating790.8
Projected new Weighed rating727.5
Projected new Weighted performance285.2
Projected new final Raw rating (if new WP > new Raw)790.8
Projected new highest rating1198.4
Projected new floor698.4
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)790.8
Projected effective change (new Official - current Official)=0.0
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
8 2020 Constantiapark Open Chess Tournament (E) 2020/02/08 2020/02/08 Tshwane (GTP) Standard 60 0.83 5 4 0.0 828.0 802.0 Analysis
7 2020 Registration Tournament (D) 2020/01/25 2020/01/25 Tshwane (GTP) Standard 60 0.83 5 5 0.0 920.1 898.0 Analysis
6 2019 South African Junior Team Championships (U8B+U8Girls) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 6 0.0 920.1 898.0 Analysis
5 2019 TC SAJCC Prep Tournament (C) 2019/11/30 2019/11/30 Tshwane (GTP) Standard 60 0.83 5 3 0.0 956.0 939.2 Analysis
4 2019 Etienne Lewis Trials (U8 Girls) 2019/08/30 2019/09/01 Tshwane (GTP) Standard 120 1.00 7 7 0.0 1076.8 1054.4 Analysis
3 2019 D4 Individual Finals (U9 Girls) 2019/03/09 2019/03/09 Tshwane (GTP) Standard 60 0.83 5 5 0.5 1130.6 1115.6 Analysis
2 2019 Constantia Park Open (E) 2019/02/09 2019/02/09 Tshwane (GTP) Standard 60 0.83 5 4 0.0 1198.7 1198.4 Analysis
1 2019 Tshwane Chess Registration Tournament (F) 2019/01/26 2019/01/26 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
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 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
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 39 2 2 35 3.0 7.7 -359.6 1163.2 803.5
White 20 1 0 19 1.0 5.0 -382.5 1160.5 778.0
Black 19 1 2 16 2.0 10.5 -335.5 1166.0 830.5
Standard All 39 2 2 35 3.0 7.7 -359.6 1163.2 803.5
White 20 1 0 19 1.0 5.0 -382.5 1160.5 778.0
Black 19 1 2 16 2.0 10.5 -335.5 1166.0 830.5
Rapid 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
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 2130106594 Yang, S (Selina) 3 0.0 0 0 3 0.0 972.3 -425.0 547.3 View list
2 1120108359 Bhudai, M (Milan) 2 1.0 1 0 1 50.0 1078.0 0.0 1078.0 View list
3 2120108352 De Swardt, M (Mieke) 2 0.0 0 0 2 0.0 1138.4 -425.0 713.4 View list
4 1130108360 Sathish, A (Aarya) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 2110112348 Janse Van Rensburg, M (Maria) 1 0.5 0 1 0 50.0 1130.6 0.0 1130.6 View list
6 1130108355 Liang, Y (Yi Qiao (Joe)) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
7 1130108354 Jansen Van Vuuren, G (Gianni) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
8 1120110364 Babusi, R (Resego) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list
9 2110103927 De Kock, L (Lana) 1 0.0 0 0 1 0.0 1130.6 -425.0 705.6 View list
10 1110109352 De Klerk, A (Antonie) 1 0.0 0 0 1 0.0 1198.7 -425.0 773.7 View list
11 211093275 Byliefeldt, M (Mienke) 1 0.0 0 0 1 0.0 828.0 -425.0 403.0 View list
12 2100107170 Broeders, M (Madison) 1 0.0 0 0 1 0.0 1130.6 -425.0 705.6 View list
13 2120105112 Bogaard, A (Anneke) 1 0.0 0 0 1 0.0 1076.8 -425.0 651.8 View list
14 2110107176 Jacobs, I (Inge) 1 0.0 0 0 1 0.0 956.0 -425.0 531.0 View list
15 1120106778 Herbst, W (Wilhelm) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list
16 1120107815 Gruenenfelder, L (Laker) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list
17 2120109364 Gruenenfelder, E (Ellie) 1 0.0 0 0 1 0.0 1076.8 -425.0 651.8 View list
18 1120109890 Grahan, T (Tylo) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list
19 2090107171 Gous, S (Shalane) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list
20 1130113573 French, BM (Brandon) 1 0.0 0 0 1 0.0 920.1 -425.0 495.1 View list