Player Page

Van Schalkwyk, JM (Jan-Maarten)
Dob: 2007/07/07 (U18)
Gender: Male
Chess SA id: 107049633
FIDE id:
Region: Gert Sibande (MGS)
Citizen: RSA
Title(s):
Last active: 2022/08/22 (672 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 rating1130.0
Current Weighted rating1129.7
Current Weighted performance634.7
Current official/published rating (highest between Raw, WR and WP)1130.0
Current highest rating achieved1130.0
Current floor (min rating allowed)630.0
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)±183.2
Current Raw change used (final)0.0
Projected new Raw rating1130.0
Projected new Weighed rating1039.6
Projected new Weighted performance634.7
Projected new final Raw rating (if new WP > new Raw)1130.0
Projected new highest rating1130.0
Projected new floor630.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1130.0
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 rating970.4
Current Weighted rating970.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)970.4
Current highest rating achieved970.4
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)±230.0
Current Raw change used (final)0.0
Projected new Raw rating970.4
Projected new Weighed rating892.8
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating970.4
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)970.4
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 rating1166.4
Current Weighted rating1165.9
Current Weighted performance668.1
Current official/published rating (highest between Raw, WR and WP)1166.4
Current highest rating achieved1166.4
Current floor (min rating allowed)666.4
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)±173.9
Current Raw change used (final)0.0
Projected new Raw rating1166.4
Projected new Weighed rating1073.1
Projected new Weighted performance668.1
Projected new final Raw rating (if new WP > new Raw)1166.4
Projected new highest rating1166.4
Projected new floor666.4
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1166.4
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 rating970.4
Current Weighted rating970.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)970.4
Current highest rating achieved970.4
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)±230.0
Current Raw change used (final)0.0
Projected new Raw rating970.4
Projected new Weighed rating892.8
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating970.4
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)970.4
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 Mpumalanga Finaal 2022 (O19) 2022/08/22 2022/08/22 Gert Sibande (MGS) Rapid 30 0.60 5 5 5.0 1050.3 1027.2 Analysis
4 Gert Sibande Laerskole Finaal 2019 (O13) 2019/08/02 2019/08/02 Gert Sibande (MGS) Rapid 30 0.60 5 5 2.5 1032.3 1030.8 Analysis
3 2019 Super 12 Laerskole (Seniors) 2019/05/04 2019/05/04 Tshwane (GTP) Rapid 30 0.60 5 5 3.0 1035.2 1050.4 Analysis
2 Gert Sibande Primary School Trials 2018 (U11 Boys) 2018/05/19 2018/05/19 Gert Sibande (MGS) Rapid 30 0.60 5 5 5.0 970.4 970.4 Analysis
1 2018 Super 12 (Senior) 2018/05/05 2018/05/05 Tshwane (GTP) Rapid 30 0.60 5 5 2.5 970.4 970.4 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 25 17 2 6 18.0 72.0 187.0 1048.6 1235.6
White 13 9 1 3 9.5 73.1 196.2 1127.5 1323.6
Black 12 8 1 3 8.5 70.8 177.1 963.1 1140.2
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 25 17 2 6 18.0 72.0 187.0 1048.6 1235.6
White 13 9 1 3 9.5 73.1 196.2 1127.5 1323.6
Black 12 8 1 3 8.5 70.8 177.1 963.1 1140.2
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 105090453 De Wet, WM (Willem Muller) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
2 108064020 Bruwer, JO (Jacobus) 1 1.0 1 0 0 100.0 1035.2 425.0 1460.2 View list
3 1060111970 Bezuidenhout, A (Anru) 1 1.0 1 0 0 100.0 1035.2 425.0 1460.2 View list
4 1060145340 Ledimo, B (Bontsi) 1 1.0 1 0 0 100.0 1050.3 425.0 1475.3 View list
5 1040145336 Erasmus, A (Amelia) 1 1.0 1 0 0 100.0 1050.3 425.0 1475.3 View list
6 107082227 Du Toit, A (Aj) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
7 107089771 Nkosi, S (Siyabonga) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
8 1050145351 Mukucha, A (Allen) 1 1.0 1 0 0 100.0 1050.3 425.0 1475.3 View list
9 1080117416 Masuku, L (Lunga) 1 1.0 1 0 0 100.0 1032.3 425.0 1457.3 View list
10 1040145344 Masilela, B (Bonginkosi) 1 1.0 1 0 0 100.0 1050.3 425.0 1475.3 View list
11 107087263 Thwala, T (Tokozane) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
12 106086008 Swart, Z (Zander) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
13 1070104082 Skhosana, L (Lwazi) 1 1.0 1 0 0 100.0 1032.3 425.0 1457.3 View list
14 106078897 Schultz, R (Ryno) 1 1.0 1 0 0 100.0 1035.2 425.0 1460.2 View list
15 108090785 Victor, X (Xander) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
16 109095283 Williams, N (Nishalan) 1 1.0 1 0 0 100.0 970.4 425.0 1395.4 View list
17 2060102924 Zungu, PS (Phokhuhle Syble) 1 1.0 1 0 0 100.0 1050.3 425.0 1475.3 View list
18 107086386 Pieters, QL (Quintin) 1 0.5 0 1 0 50.0 1032.3 0.0 1032.3 View list
19 101056678 Louw, R (Ricardo) 1 0.5 0 1 0 50.0 970.4 0.0 970.4 View list
20 106057254 Curlewis, R (Ruart) 1 0.0 0 0 1 0.0 1035.2 -425.0 610.2 View list