Player Page

Van Der Merwe, ZC (Zander Christiaan)
Dob: 2014/05/27 (U12)
Gender: Male
Chess SA id: 1140134245
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/09/01 (18 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 rating1443.4
Current Weighted rating1375.9
Current Weighted performance1418.4
Current official/published rating (highest between Raw, WR and WP)1443.4
Current highest rating achieved1456.4
Current floor (min rating allowed)956.4
Current K-factor32
Games played this month12
Score (S)7.0
Expected score (We)8.48
Difference (S-We)-1.44
Current Raw change (no limits, including tournament time weight)-46.1
Current min/max change allowed (with limits)±117.2
Current Raw change used (final)-46.1
Projected new Raw rating1397.3
Projected new Weighed rating1266.5
Projected new Weighted performance1357.9
Projected new final Raw rating (if new WP > new Raw)1397.3
Projected new highest rating1456.4
Projected new floor956.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1397.3
Projected effective change (new Official - current Official)-46.1
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 rating1435.8
Current Weighted rating1370.6
Current Weighted performance1418.4
Current official/published rating (highest between Raw, WR and WP)1435.8
Current highest rating achieved1450.8
Current floor (min rating allowed)950.8
Current K-factor32
Games played this month12
Score (S)7.0
Expected score (We)8.38
Difference (S-We)-1.38
Current Raw change (no limits, including tournament time weight)-44.2
Current min/max change allowed (with limits)±118.5
Current Raw change used (final)-44.2
Projected new Raw rating1391.6
Projected new Weighed rating1261.6
Projected new Weighted performance1357.9
Projected new final Raw rating (if new WP > new Raw)1391.6
Projected new highest rating1450.8
Projected new floor950.8
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1391.6
Projected effective change (new Official - current Official)-44.2
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 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
Tournament: 2024 Etienne Lewis (U12)
Start: 2024/08/30  End: 2024/09/01  Host: GTP  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 7
Games: 7  Score: 3.0
Main rating: 1443.4  Rating gain/loss: -58.1
Type rating: 1435.8  Rating gain/loss: -60.2
Analysis
Tournament: Gauteng Schools Individuals Finals 2024 (U11 Boys)
Start: 2024/08/16  End: 2024/08/16  Host: GE  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1443.4  Rating gain/loss: 12.0
Type rating: 1435.8  Rating gain/loss: 16.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
11 2024 Etienne Lewis (U12) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1443.4 1435.8 Analysis
10 Gauteng Schools Individuals Finals 2024 (U11 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1443.4 1435.8 Analysis
9 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1456.4 1450.8 Analysis
8 2024 Midstream College Open Chess Tournament (U12) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1429.3 1423.4 Analysis
7 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1401.8 1403.6 Analysis
6 2024 Tshwane South School District CLOSED Individual Championships (U11 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1346.8 1337.4 Analysis
5 2024 Silver Lakes Open Chess Tournament (D2) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1360.9 1353.4 Analysis
4 2024 Constantiapark Open (D1) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1379.5 1376.8 Analysis
3 2024 Blou Bul Open Chess Tournament (D) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1379.5 1376.8 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (D1) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1339.2 1335.8 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1339.2 1335.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
29 2024 Etienne Lewis (U12) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1443.4 1435.8 Analysis
28 Gauteng Schools Individuals Finals 2024 (U11 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1443.4 1435.8 Analysis
27 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1456.4 1450.8 Analysis
26 2024 Midstream College Open Chess Tournament (U12) 2024/07/20 2024/07/20 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1429.3 1423.4 Analysis
25 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1401.8 1403.6 Analysis
24 2024 Tshwane South School District CLOSED Individual Championships (U11 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1346.8 1337.4 Analysis
23 2024 Silver Lakes Open Chess Tournament (D2) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1360.9 1353.4 Analysis
22 2024 Constantiapark Open (D1) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1379.5 1376.8 Analysis
21 2024 Blou Bul Open Chess Tournament (D) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1379.5 1376.8 Analysis
20 2024 Tshwane Chess OPEN Registration Tournament (D1) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1339.2 1335.8 Analysis
19 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1339.2 1335.8 Analysis
18 Lardies Open Tournament 2023 (D1) 2023/10/28 2023/10/28 Tshwane (GTP) Standard 60 0.83 5 4 2.5 1348.0 1344.8 Analysis
17 2023 Centurion Chess Open (D) 2023/09/23 2023/09/23 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1365.0 1367.2 Analysis
16 2023 Etienne Lewis Closed Tournament (U10) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 7 4.5 1295.8 1277.6 Analysis
15 2023 Gauteng Top Schools (U9 Mixed) 2023/08/18 2023/08/18 West Rand (GWR) Standard 60 0.83 5 5 4.0 1295.8 1277.6 Analysis
14 2023 Woman's Day Open Chess Tournament (Knight) 2023/08/09 2023/08/09 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1295.8 1277.6 Analysis
13 2023 Tshwane South School District CLOSED League Championship (U9) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1343.6 1332.0 Analysis
12 2023 Milos Ristic Open Tournament (D1) 2023/04/27 2023/04/27 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1395.4 1395.7 Analysis
11 Laerskool Constantiapark Open Chess Tournament 2023 (U10) 2023/02/18 2023/02/18 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1350.2 1347.4 Analysis
10 2023 Piet Robbertse Fide Rated Open Chess Tournament (E) 2023/02/04 2023/02/04 Tshwane (GTP) Standard 90 0.94 5 5 5.0 1350.2 1347.4 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 59 34 6 19 37.0 62.7 108.1 1300.1 1408.1
White 27 19 1 7 19.5 72.2 188.9 1292.4 1481.2
Black 32 15 5 12 17.5 54.7 39.8 1306.5 1346.4
Standard All 59 34 6 19 37.0 62.7 108.1 1300.1 1408.1
White 27 19 1 7 19.5 72.2 188.9 1292.4 1481.2
Black 32 15 5 12 17.5 54.7 39.8 1306.5 1346.4
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 149 85 19 45 94.5 63.4 114.1 1245.9 1360.0
White 72 44 9 19 48.5 67.4 147.6 1253.3 1400.9
Black 77 41 10 26 46.0 59.7 82.8 1239.0 1321.8
Standard All 149 85 19 45 94.5 63.4 114.1 1245.9 1360.0
White 72 44 9 19 48.5 67.4 147.6 1253.3 1400.9
Black 77 41 10 26 46.0 59.7 82.8 1239.0 1321.8
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 1140160790 Bienedell, R (Robin) 4 2.0 2 0 2 50.0 1369.6 0.0 1369.6 View list
2 2140135776 Roberts, F (Frans-Leigh) 4 1.0 1 0 3 25.0 1363.3 -212.5 1150.8 View list
3 2140135778 Sutherland, K (Kiona) 3 3.0 3 0 0 100.0 1368.1 425.0 1793.1 View list
4 1140134237 Barkhuizen, SJ (Simon Jurgens) 3 2.5 2 1 0 83.3 1251.2 283.3 1534.5 View list
5 1140135082 Janse Van Rensburg, J (Josh) 3 0.5 0 1 2 16.7 1311.7 -283.3 1028.4 View list
6 2140134240 Du Plessis, M (Mia) 2 2.0 2 0 0 100.0 1240.8 425.0 1665.8 View list
7 1140145714 Ntsoane, L (Lethabo) 2 2.0 2 0 0 100.0 1342.6 425.0 1767.6 View list
8 1130112336 Pieters, H (Hanroux) 2 2.0 2 0 0 100.0 1282.2 425.0 1707.2 View list
9 2140135772 Potgieter, R (Raven) 2 2.0 2 0 0 100.0 1285.4 425.0 1710.4 View list
10 1140144519 Van Wyk, W (Wouter) 2 2.0 2 0 0 100.0 1437.3 425.0 1862.3 View list
11 2150157433 Westermann, I (Inge) 2 2.0 2 0 0 100.0 1337.7 425.0 1762.7 View list
12 1140134057 Erwee, HP (Hermanus Philipus) 2 1.0 1 0 1 50.0 1247.9 0.0 1247.9 View list
13 1140144840 Lekalakala, R (Realeboga Blessings) 2 1.0 1 0 1 50.0 1396.8 0.0 1396.8 View list
14 2140133853 Loots, M (Mia) 2 1.0 1 0 1 50.0 1389.8 0.0 1389.8 View list
15 1140137312 Mabuza, O (Oluhle) 2 1.0 1 0 1 50.0 1436.3 0.0 1436.3 View list
16 2140135773 Raath, E (Emma) 2 1.0 1 0 1 50.0 1264.8 0.0 1264.8 View list
17 1150140638 Wolvaardt, J (Jonathan) 2 1.0 1 0 1 50.0 1319.7 0.0 1319.7 View list
18 2140143071 Haupt, A (Abigail) 2 1.0 0 2 0 50.0 1357.7 0.0 1357.7 View list
19 1140134242 Opperman, J (Jordan) 2 0.5 0 1 1 25.0 1289.8 -212.5 1077.3 View list
20 1130108360 Sathish, A (Aarya) 2 0.5 0 1 1 25.0 1342.5 -212.5 1130.0 View list