Player Page

Du Preez, J (Julian)
Dob: 2010/10/20 (U16)
Gender: Male
Chess SA id: 1100096766
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (41 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 rating1299.4
Current Weighted rating1270.7
Current Weighted performance1223.5
Current official/published rating (highest between Raw, WR and WP)1299.4
Current highest rating achieved1299.4
Current floor (min rating allowed)799.4
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)±143.9
Current Raw change used (final)0.0
Projected new Raw rating1299.4
Projected new Weighed rating1170.0
Projected new Weighted performance1223.5
Projected new final Raw rating (if new WP > new Raw)1299.4
Projected new highest rating1299.4
Projected new floor799.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1299.4
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 rating1289.7
Current Weighted rating1251.0
Current Weighted performance1203.0
Current official/published rating (highest between Raw, WR and WP)1289.7
Current highest rating achieved1304.1
Current floor (min rating allowed)804.1
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)±145.9
Current Raw change used (final)0.0
Projected new Raw rating1289.7
Projected new Weighed rating1152.3
Projected new Weighted performance1203.0
Projected new final Raw rating (if new WP > new Raw)1289.7
Projected new highest rating1304.1
Projected new floor804.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1289.7
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 rating1213.6
Current Weighted rating1213.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1213.6
Current highest rating achieved1213.6
Current floor (min rating allowed)713.6
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)±162.6
Current Raw change used (final)0.0
Projected new Raw rating1213.6
Projected new Weighed rating1116.5
Projected new Weighted performance527.3
Projected new final Raw rating (if new WP > new Raw)1213.6
Projected new highest rating1213.6
Projected new floor713.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1213.6
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 2024 Tshwane South School District CLOSED Individual Championships (U15 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1279.4 1264.1 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
45 2024 Tshwane South School District CLOSED Individual Championships (U15 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1279.4 1264.1 Analysis
44 2023 Tshwane South School District CLOSED League Championship (U13) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1249.2 1221.6 Analysis
43 2023 Tshwane South School District CLOSED Individual Championships (U13 Open) 2023/04/22 2023/04/22 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1233.1 1194.2 Analysis
42 D4 Play Offs 2022 (U13) 2022/07/30 2022/07/30 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1207.4 1155.3 Analysis
41 D4 Individuals 2022 (U13 Open) 2022/04/23 2022/04/23 Tshwane (GTP) Rapid 30 0.60 7 6 4.5 1174.6 1187.6 Analysis
40 2022 Tshwane Chess Open Registration Tournament (C2) 2022/01/29 2022/01/29 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1224.5 1215.8 Analysis
39 2020 Waterkloof Open (C) 2020/02/29 2020/03/01 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1180.2 1172.6 Analysis
38 2020 Blou Bul (C) 2020/02/15 2020/02/15 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1167.1 1152.8 Analysis
37 2020 Constantiapark Open Chess Tournament (C) 2020/02/08 2020/02/08 Tshwane (GTP) Standard 60 0.83 5 4 2.0 1167.1 1152.8 Analysis
36 2020 Registration Tournament (C) 2020/01/25 2020/01/25 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1148.4 1122.2 Analysis
35 2019 Wild Card Chess Championship (U10 Open) 2020/01/09 2020/01/12 4 Knights (4K) Standard 120 1.00 7 7 3.5 1148.4 1122.2 Analysis
34 2019 South African Junior Team Championships (U10A) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 3.0 1148.4 1122.2 Analysis
33 2019 TC SAJCC Prep Tournament (B) 2019/11/30 2019/11/30 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1137.9 1104.9 Analysis
32 2019 Lardies Open (C) 2019/10/26 2019/10/26 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1156.4 1122.9 Analysis
31 2019 Etienne Lewis Trials (U10 Boys) 2019/08/30 2019/09/01 Tshwane (GTP) Standard 120 1.00 7 7 4.0 1107.8 1064.6 Analysis
30 2019 Mid-Gauteng Open (C) 2019/08/17 2019/08/17 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1238.6 1187.7 Analysis
29 2019 Alekhine Open (C) 2019/08/09 2019/08/10 Tshwane (GTP) Standard 120 1.00 5 4 0.0 1238.6 1187.7 Analysis
28 2019 D4 Tshwane South Schools League Team Finals (U9) 2019/07/27 2019/07/27 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1238.9 1199.1 Analysis
27 2019 Menlo Open (C) 2019/07/13 2019/07/13 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1238.9 1199.1 Analysis
26 2019 Swartkop Open (D) 2019/06/15 2019/06/15 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1202.1 1149.4 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 3 0 2 3.0 60.0 85.0 1314.0 1399.0
White 3 1 0 2 1.0 33.3 -141.7 1406.3 1264.6
Black 2 2 0 0 2.0 100.0 425.0 1175.7 1600.7
Standard All 5 3 0 2 3.0 60.0 85.0 1314.0 1399.0
White 3 1 0 2 1.0 33.3 -141.7 1406.3 1264.6
Black 2 2 0 0 2.0 100.0 425.0 1175.7 1600.7
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 233 118 9 106 122.5 52.6 21.9 1135.4 1157.3
White 115 57 5 53 59.5 51.7 14.8 1145.5 1160.3
Black 118 61 4 53 63.0 53.4 28.8 1125.6 1154.4
Standard All 217 109 5 103 111.5 51.4 11.8 1134.1 1145.9
White 107 54 3 50 55.5 51.9 15.9 1147.0 1162.9
Black 110 55 2 53 56.0 50.9 7.7 1121.6 1129.3
Rapid All 16 9 4 3 11.0 68.8 159.4 1153.0 1312.4
White 8 3 2 3 4.0 50.0 0.0 1125.1 1125.1
Black 8 6 2 0 7.0 87.5 318.8 1181.0 1499.7
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 205086771 Jacobs, L (Lenita) 5 2.0 2 0 3 40.0 1125.2 -85.0 1040.2 View list
2 1120096779 Yang, JD (Daniel) 4 3.0 3 0 1 75.0 1188.3 212.5 1400.8 View list
3 1080108322 Bonokwane, K (Kgalalelo) 4 2.5 2 1 1 62.5 1166.6 106.3 1272.8 View list
4 1100107659 Niehaus, SJ (Samuel) 4 2.0 2 0 2 50.0 1188.6 0.0 1188.6 View list
5 109095317 Olivier, BM (Barnard) 4 1.5 1 1 2 37.5 1136.9 -106.3 1030.7 View list
6 1080108331 Ferreira, L (Louis) 3 3.0 3 0 0 100.0 1108.0 425.0 1533.0 View list
7 111088592 Pillay, T (Tahir) 3 3.0 3 0 0 100.0 1161.4 425.0 1586.4 View list
8 110089426 Van Der Walt, AJ (Antonie) 3 2.0 2 0 1 66.7 1072.9 141.7 1214.5 View list
9 2080106625 Van Der Merwe, C (Clara) 3 1.0 1 0 2 33.3 1220.6 -141.7 1078.9 View list
10 109092649 Webb, K (Kagan) 3 1.0 1 0 2 33.3 1112.0 -141.7 970.4 View list
11 108064862 Moolman, R (Reinhardt) 3 0.0 0 0 3 0.0 1132.3 -425.0 707.3 View list
12 207077152 Odendaal, Z (Zandri) 3 0.0 0 0 3 0.0 1214.3 -425.0 789.3 View list
13 1080097218 Beukes, A (Anton) 2 2.0 2 0 0 100.0 1065.1 425.0 1490.1 View list
14 209073138 Johnstone, J (Jessica) 2 2.0 2 0 0 100.0 1194.5 425.0 1619.5 View list
15 1090097848 Kubheka, T (Thando) 2 2.0 2 0 0 100.0 1236.5 425.0 1661.5 View list
16 110095325 Lourens, J (Jurgen) 2 2.0 2 0 0 100.0 1177.4 425.0 1602.4 View list
17 1100097226 Marais, JS (Jacobus) 2 2.0 2 0 0 100.0 1169.5 425.0 1594.5 View list
18 1100097309 O Rourke, R (Ronan) 2 2.0 2 0 0 100.0 1208.8 425.0 1633.8 View list
19 1090109363 Snyman, CW (Connor William) 2 2.0 2 0 0 100.0 1124.3 425.0 1549.3 View list
20 110092655 Sutherland, R (Reuben) 2 2.0 2 0 0 100.0 1173.3 425.0 1598.3 View list