Player Page

Van Der Merwe, J (Jayden)
Dob: 2016/02/26 (U10)
Gender: Male
Chess SA id: 1160159295
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/12/08 (5 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 rating1358.7
Current Weighted rating1298.4
Current Weighted performance1322.4
Current official/published rating (highest between Raw, WR and WP)1358.7
Current highest rating achieved1358.7
Current floor (min rating allowed)858.7
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)3.22
Difference (S-We)-0.21
Current Raw change (no limits, including tournament time weight)-7.4
Current min/max change allowed (with limits)±132.3
Current Raw change used (final)-7.4
Projected new Raw rating1351.3
Projected new Weighed rating1196.8
Projected new Weighted performance1330.3
Projected new final Raw rating (if new WP > new Raw)1351.3
Projected new highest rating1358.7
Projected new floor858.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1351.3
Projected effective change (new Official - current Official)-7.4
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 rating1364.1
Current Weighted rating1301.3
Current Weighted performance1322.4
Current official/published rating (highest between Raw, WR and WP)1364.1
Current highest rating achieved1364.1
Current floor (min rating allowed)864.1
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)3.29
Difference (S-We)-0.29
Current Raw change (no limits, including tournament time weight)-10.4
Current min/max change allowed (with limits)±131.2
Current Raw change used (final)-10.4
Projected new Raw rating1353.7
Projected new Weighed rating1199.4
Projected new Weighted performance1330.3
Projected new final Raw rating (if new WP > new Raw)1353.7
Projected new highest rating1364.1
Projected new floor864.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1353.7
Projected effective change (new Official - current Official)-10.4
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: Gauteng Inter-Region at UJ 2024 (U10 Candidates)
Start: 2024/12/07  End: 2024/12/08  Host: GJM  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1358.7  Rating gain/loss: -7.4
Type rating: 1364.1  Rating gain/loss: -10.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
14 Gauteng Inter-Region at UJ 2024 (U10 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1358.7 1364.1 Analysis
13 2024 West Rand Closed (U10) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1304.0 1294.3 Analysis
12 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1304.0 1294.3 Analysis
11 2024 West Rand Trials (U10) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1327.0 1322.0 Analysis
10 2024 West Rand Rappies Open (U10) 2024/08/03 2024/08/03 West Rand (GWR) Standard 60 0.83 5 4 2.0 1334.5 1332.4 Analysis
9 D2 School League Finals 2024 (U9) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 3.5 1329.7 1326.6 Analysis
8 FIDE in the West 2024 (U10) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 3.0 1288.5 1287.1 Analysis
7 Chess Power House May Open 2024 (E) 2024/05/25 2024/05/25 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1294.2 1300.2 Analysis
6 2024 D2 Schools Individuals (U9) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 4.0 1294.2 1300.2 Analysis
5 South African Junior Closed Chess Championship 2024 (U8 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 2.5 1294.2 1300.2 Analysis
4 2024 West Rand RHS Open (U10) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 3.0 1281.4 1285.4 Analysis
3 2024 West Rand Juniors (U10) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 2.0 1303.8 1314.2 Analysis
2 2024 West Rand Open (U10) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 3.0 1289.8 1299.8 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U8) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1289.1 1300.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
17 Gauteng Inter-Region at UJ 2024 (U10 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1358.7 1364.1 Analysis
16 2024 West Rand Closed (U10) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1304.0 1294.3 Analysis
15 Gauteng Top Schools 2024 (U9 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1304.0 1294.3 Analysis
14 2024 West Rand Trials (U10) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1327.0 1322.0 Analysis
13 2024 West Rand Rappies Open (U10) 2024/08/03 2024/08/03 West Rand (GWR) Standard 60 0.83 5 4 2.0 1334.5 1332.4 Analysis
12 D2 School League Finals 2024 (U9) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 3.5 1329.7 1326.6 Analysis
11 FIDE in the West 2024 (U10) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 3.0 1288.5 1287.1 Analysis
10 Chess Power House May Open 2024 (E) 2024/05/25 2024/05/25 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1294.2 1300.2 Analysis
9 2024 D2 Schools Individuals (U9) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 4.0 1294.2 1300.2 Analysis
8 South African Junior Closed Chess Championship 2024 (U8 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 2.5 1294.2 1300.2 Analysis
7 2024 West Rand RHS Open (U10) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 3.0 1281.4 1285.4 Analysis
6 2024 West Rand Juniors (U10) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 2.0 1303.8 1314.2 Analysis
5 2024 West Rand Open (U10) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 3.0 1289.8 1299.8 Analysis
4 2024 Gauteng Inter-Region Chess Championship (U8) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1289.1 1300.5 Analysis
3 West Rand vs Bojanala Inter-Regional Championships 2023 (U8) 2023/10/12 2023/10/12 West Rand (GWR) Standard 60 0.83 8 8 5.5 1228.1 1231.0 Analysis
2 2023 West Rand Trials (U8) 2023/09/09 2023/09/09 West Rand (GWR) Standard 60 0.83 5 5 2.0 1237.1 1243.6 Analysis
1 West Rand at Bastion 2023 (U8) 2023/08/05 2023/08/05 West Rand (GWR) Standard 60 0.83 7 6 4.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 73 39 3 31 40.5 55.5 46.6 1267.6 1314.2
White 34 18 0 16 18.0 52.9 25.0 1269.7 1294.7
Black 39 21 3 15 22.5 57.7 65.4 1265.8 1331.2
Standard All 73 39 3 31 40.5 55.5 46.6 1267.6 1314.2
White 34 18 0 16 18.0 52.9 25.0 1269.7 1294.7
Black 39 21 3 15 22.5 57.7 65.4 1265.8 1331.2
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 92 50 4 38 52.0 56.5 55.4 1266.9 1322.3
White 43 23 1 19 23.5 54.7 39.5 1263.7 1303.2
Black 49 27 3 19 28.5 58.2 69.4 1269.6 1339.0
Standard All 92 50 4 38 52.0 56.5 55.4 1266.9 1322.3
White 43 23 1 19 23.5 54.7 39.5 1263.7 1303.2
Black 49 27 3 19 28.5 58.2 69.4 1269.6 1339.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2150156373 Erasmus, S (Sonja) 3 2.0 2 0 1 66.7 1306.6 141.7 1448.3 View list
2 1150149223 Botha, AZ (Adriaan Zander) 3 0.0 0 0 3 0.0 1306.9 -425.0 881.9 View list
3 1150302452 Crous, R (Ruvan) 2 2.0 2 0 0 100.0 1305.6 425.0 1730.6 View list
4 1150301051 Carr, P (Phillip Stuart) 2 2.0 2 0 0 100.0 1296.2 425.0 1721.2 View list
5 1160156372 Britz, W (Wian) 2 2.0 2 0 0 100.0 1244.9 425.0 1669.9 View list
6 1170145156 Botha, E (Erasmus Albertus) 2 2.0 2 0 0 100.0 1261.2 425.0 1686.2 View list
7 2160159291 Kalimashe, L (Liyabukwa) 2 2.0 2 0 0 100.0 1251.9 425.0 1676.9 View list
8 1150149232 Le Roux, K (Keanu) 2 2.0 2 0 0 100.0 1330.8 425.0 1755.8 View list
9 2190159294 Sehularo, T (Taonga Kgantsho) 2 2.0 2 0 0 100.0 1218.5 425.0 1643.5 View list
10 2150156384 Van Tonder, J (Jennike) 2 2.0 2 0 0 100.0 1292.0 425.0 1717.0 View list
11 1160156767 De Jager, L (Luado) 2 1.0 1 0 1 50.0 1258.3 0.0 1258.3 View list
12 1170134515 Deysel, Z (Zachariah) 2 1.0 1 0 1 50.0 1291.7 0.0 1291.7 View list
13 1170144069 Kruger, T (Thinus Pieter) 2 1.0 1 0 1 50.0 1261.2 0.0 1261.2 View list
14 1150149230 Kamffer, J (John-Andrew) 2 0.0 0 0 2 0.0 1314.3 -425.0 889.3 View list
15 1150152490 Menyatsoe, K (Kgosi) 2 0.0 0 0 2 0.0 1296.8 -425.0 871.8 View list
16 1180159293 Myburgh, M (Morne) 2 0.0 0 0 2 0.0 1218.5 -425.0 793.5 View list
17 1160157330 Steyn, K (Kahn) 2 0.0 0 0 2 0.0 1310.6 -425.0 885.6 View list
18 1160161346 White, J (Joshua) 2 0.0 0 0 2 0.0 1270.5 -425.0 845.5 View list
19 1150159296 Willemse, B (Bernard) 2 0.0 0 0 2 0.0 1319.2 -425.0 894.2 View list
20 2150303140 Attwood, C (Chloe Lee) 1 1.0 1 0 0 100.0 1329.7 425.0 1754.7 View list