Player Page

Van Heerden, A (Alexander)
Dob: 2010/09/12 (U16)
Gender: Male
Chess SA id: 1100152485
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/12/08 (2 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 rating1249.9
Current Weighted rating1243.7
Current Weighted performance1180.4
Current official/published rating (highest between Raw, WR and WP)1249.9
Current highest rating achieved1280.7
Current floor (min rating allowed)780.7
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)2.01
Difference (S-We)0.46
Current Raw change (no limits, including tournament time weight)16.6
Current min/max change allowed (with limits)±154.4
Current Raw change used (final)16.6
Projected new Raw rating1266.5
Projected new Weighed rating1145.3
Projected new Weighted performance1238.2
Projected new final Raw rating (if new WP > new Raw)1266.5
Projected new highest rating1280.7
Projected new floor780.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1266.5
Projected effective change (new Official - current Official)+16.6
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 rating1249.1
Current Weighted rating1251.9
Current Weighted performance1179.5
Current official/published rating (highest between Raw, WR and WP)1251.9
Current highest rating achieved1314.3
Current floor (min rating allowed)814.3
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)1.96
Difference (S-We)0.54
Current Raw change (no limits, including tournament time weight)19.4
Current min/max change allowed (with limits)±154.6
Current Raw change used (final)19.4
Projected new Raw rating1268.5
Projected new Weighed rating1152.9
Projected new Weighted performance1226.7
Projected new final Raw rating (if new WP > new Raw)1268.5
Projected new highest rating1314.3
Projected new floor814.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1268.5
Projected effective change (new Official - current Official)+16.7
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 rating1166.8
Current Weighted rating1182.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1182.8
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)±173.8
Current Raw change used (final)0.0
Projected new Raw rating1166.8
Projected new Weighed rating1087.6
Projected new Weighted performance938.8
Projected new final Raw rating (if new WP > new Raw)1166.8
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)1166.8
Projected effective change (new Official - current Official)-16.0
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 (U16 Candidates)
Start: 2024/12/07  End: 2024/12/08  Host: GJM  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 2.5
Main rating: 1249.9  Rating gain/loss: 16.6
Type rating: 1249.1  Rating gain/loss: 19.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
15 Gauteng Inter-Region at UJ 2024 (U16 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.5 1249.9 1249.1 Analysis
14 2024 West Rand Closed (U16) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1251.1 1249.5 Analysis
13 2024 West Rand Trials (U16) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1265.5 1277.2 Analysis
12 Chess Power House Spring Rapid 2024 2024/09/01 2024/09/01 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 2.0 1265.5 1167.2 Analysis
11 JMC Closed 2024 (D) 2024/08/09 2024/08/11 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1264.1 1279.4 Analysis
10 D2 School League Finals 2024 (U15) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 2.0 1259.2 1271.8 Analysis
9 JMC Trinityhouse Randpark Ridge 2024 (D) 2024/07/13 2024/07/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1259.2 1271.8 Analysis
8 JMC NG Weltevreden Church 2024 2024/06/29 2024/06/29 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 2.5 1259.2 1182.0 Analysis
7 JMC Trinityhouse Little Falls 2024 (C) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1249.0 1261.7 Analysis
6 JMC Crawford International Sandton 2024 (C) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1280.7 1314.3 Analysis
5 2024 D2 Schools Individuals (U15 Boys) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 2.0 1280.7 1314.3 Analysis
4 JMC Unika School Tournament 2024 (D) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1241.6 1260.5 Analysis
3 Gear Up Mzansi Rapid 2024 (Junior) 2024/02/17 2024/02/17 Johannesburg Metro (GJM) Rapid 35 0.66 5 5 2.0 1210.8 1200.0 Analysis
2 2024 West Rand Open (Rooks) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 3.5 1210.8 1209.7 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U14C) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1227.0 1228.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
21 Gauteng Inter-Region at UJ 2024 (U16 Candidates) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.5 1249.9 1249.1 Analysis
20 2024 West Rand Closed (U16) 2024/10/12 2024/10/12 West Rand (GWR) Standard 60 0.83 5 5 2.0 1251.1 1249.5 Analysis
19 2024 West Rand Trials (U16) 2024/09/07 2024/09/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1265.5 1277.2 Analysis
18 Chess Power House Spring Rapid 2024 2024/09/01 2024/09/01 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 2.0 1265.5 1167.2 Analysis
17 JMC Closed 2024 (D) 2024/08/09 2024/08/11 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1264.1 1279.4 Analysis
16 D2 School League Finals 2024 (U15) 2024/07/20 2024/07/20 West Rand (GWR) Standard 60 0.83 5 5 2.0 1259.2 1271.8 Analysis
15 JMC Trinityhouse Randpark Ridge 2024 (D) 2024/07/13 2024/07/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1259.2 1271.8 Analysis
14 JMC NG Weltevreden Church 2024 2024/06/29 2024/06/29 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 2.5 1259.2 1182.0 Analysis
13 JMC Trinityhouse Little Falls 2024 (C) 2024/06/02 2024/06/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1249.0 1261.7 Analysis
12 JMC Crawford International Sandton 2024 (C) 2024/05/11 2024/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1280.7 1314.3 Analysis
11 2024 D2 Schools Individuals (U15 Boys) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 2.0 1280.7 1314.3 Analysis
10 JMC Unika School Tournament 2024 (D) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1241.6 1260.5 Analysis
9 Gear Up Mzansi Rapid 2024 (Junior) 2024/02/17 2024/02/17 Johannesburg Metro (GJM) Rapid 35 0.66 5 5 2.0 1210.8 1200.0 Analysis
8 2024 West Rand Open (Rooks) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 3.5 1210.8 1209.7 Analysis
7 2024 Gauteng Inter-Region Chess Championship (U14C) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1227.0 1228.8 Analysis
6 ThinkChess Academy 2023 (B) 2023/09/09 2023/09/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1205.9 1206.8 Analysis
5 2023 Gauteng Top Schools (U13 Mixed) 2023/08/18 2023/08/18 West Rand (GWR) Standard 60 0.83 5 5 2.0 1221.1 1227.0 Analysis
4 JMC Trinity Little Falls 2023 (D) 2023/07/02 2023/07/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1205.3 1207.2 Analysis
3 JNW Open - Trinityhouse Little Falls 2023 (C) 2023/06/24 2023/06/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1171.4 1164.8 Analysis
2 JNW Open - Trinityhouse Little Falls 2023 (D) 2023/05/13 2023/05/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1197.3 1196.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 79 35 4 40 37.0 46.8 -26.9 1294.9 1268.0
White 41 16 2 23 17.0 41.5 -72.6 1286.7 1214.1
Black 38 19 2 17 20.0 52.6 22.4 1303.7 1326.1
Standard All 60 29 3 28 30.5 50.8 7.1 1270.7 1277.8
White 30 12 1 17 12.5 41.7 -70.8 1256.3 1185.5
Black 30 17 2 11 18.0 60.0 85.0 1285.1 1370.1
Rapid All 19 6 1 12 6.5 34.2 -134.2 1371.3 1237.1
White 11 4 1 6 4.5 40.9 -77.3 1369.6 1292.3
Black 8 2 0 6 2.0 25.0 -212.5 1373.6 1161.1
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 109 51 5 53 53.5 49.1 -7.8 1263.9 1256.1
White 58 27 2 29 28.0 48.3 -14.7 1248.9 1234.2
Black 51 24 3 24 25.5 50.0 0.0 1280.9 1280.9
Standard All 90 45 4 41 47.0 52.2 18.9 1241.2 1260.1
White 47 23 1 23 23.5 50.0 0.0 1220.6 1220.6
Black 43 22 3 18 23.5 54.7 39.5 1263.7 1303.2
Rapid All 19 6 1 12 6.5 34.2 -134.2 1371.3 1237.1
White 11 4 1 6 4.5 40.9 -77.3 1369.6 1292.3
Black 8 2 0 6 2.0 25.0 -212.5 1373.6 1161.1
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 1120132213 Williams, J (Joshua) 4 1.0 1 0 3 25.0 1223.3 -212.5 1010.8 View list
2 2090144536 Pillay, L (Leeyah) 3 2.0 2 0 1 66.7 1215.9 141.7 1357.6 View list
3 2090136706 Moabi, O (Olerato) 2 2.0 2 0 0 100.0 1255.2 425.0 1680.2 View list
4 2120143693 Prakash, M (Maisha) 2 2.0 2 0 0 100.0 1205.6 425.0 1630.6 View list
5 1090136702 Jacob, AK (Abishai) 2 1.0 1 0 1 50.0 1265.3 0.0 1265.3 View list
6 1090117297 Perry-Fisher, IE (Iain Eric) 2 1.0 1 0 1 50.0 1258.3 0.0 1258.3 View list
7 1090302447 Sele, P (Pule Bongani) 2 1.0 1 0 1 50.0 1255.2 0.0 1255.2 View list
8 1140148614 Subroyen, J (Jeevesh) 2 1.0 1 0 1 50.0 1208.3 0.0 1208.3 View list
9 2110141975 Mlilo, S (Sibongisiwe) 2 0.0 0 0 2 0.0 1270.0 -425.0 845.0 View list
10 1130148617 Westoby, A (Adam) 2 0.0 0 0 2 0.0 1235.4 -425.0 810.4 View list
11 1170134515 Deysel, Z (Zachariah) 1 1.0 1 0 0 100.0 1205.9 425.0 1630.9 View list
12 1140305485 Deng, Y (Yezhong Qi) 1 1.0 1 0 0 100.0 1265.5 425.0 1690.5 View list
13 1110191588 Deng, J (Jinyuan) 1 1.0 1 0 0 100.0 1264.1 425.0 1689.1 View list
14 1050155728 Dalais, D (Dario) 1 1.0 1 0 0 100.0 1197.3 425.0 1622.3 View list
15 1110192098 Da Cerca, D (Damiano) 1 1.0 1 0 0 100.0 1210.8 425.0 1635.8 View list
16 111092267 D`Alton, E (Ezra) 1 1.0 1 0 0 100.0 1241.6 425.0 1666.6 View list
17 1080143807 Cruikshanks, C (Connor) 1 1.0 1 0 0 100.0 1259.2 425.0 1684.2 View list
18 1120147297 Chikwava, R (Ronald) 1 1.0 1 0 0 100.0 1197.3 425.0 1622.3 View list
19 1110137029 Bezuidenhout, L (Liam) 1 1.0 1 0 0 100.0 1227.0 425.0 1652.0 View list
20 1160137420 Badat, M (Mikaeel) 1 1.0 1 0 0 100.0 1249.0 425.0 1674.0 View list