Player Page

Marais, A (Alexander)
Dob: 2015/05/17 (U10)
Gender: Male
Chess SA id: 1150140699
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/08/17 (55 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 rating1455.2
Current Weighted rating1382.0
Current Weighted performance1403.9
Current official/published rating (highest between Raw, WR and WP)1455.2
Current highest rating achieved1459.0
Current floor (min rating allowed)959.0
Current K-factor32
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)±115.3
Current Raw change used (final)0.0
Projected new Raw rating1455.2
Projected new Weighed rating1274.9
Projected new Weighted performance1403.9
Projected new final Raw rating (if new WP > new Raw)1455.2
Projected new highest rating1459.0
Projected new floor959.0
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1455.2
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 rating1388.5
Current Weighted rating1318.3
Current Weighted performance1362.9
Current official/published rating (highest between Raw, WR and WP)1388.5
Current highest rating achieved1392.5
Current floor (min rating allowed)892.5
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)±126.8
Current Raw change used (final)0.0
Projected new Raw rating1388.5
Projected new Weighed rating1215.9
Projected new Weighted performance1362.9
Projected new final Raw rating (if new WP > new Raw)1388.5
Projected new highest rating1392.5
Projected new floor892.5
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1388.5
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 rating1507.7
Current Weighted rating1408.8
Current Weighted performance1449.7
Current official/published rating (highest between Raw, WR and WP)1507.7
Current highest rating achieved1507.7
Current floor (min rating allowed)1007.7
Current K-factor32
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)±107.0
Current Raw change used (final)0.0
Projected new Raw rating1507.7
Projected new Weighed rating1299.8
Projected new Weighted performance1449.7
Projected new final Raw rating (if new WP > new Raw)1507.7
Projected new highest rating1507.7
Projected new floor1007.7
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1507.7
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
8 Stellenbosch Primary 2024 (U9) 2024/08/17 2024/08/17 Cape Winelands (WCW) Rapid 30 0.60 5 5 5.0 1434.5 1480.2 Analysis
7 CT Metro District East Top Schools Chess 2024 (U9 Mixed) 2024/07/27 2024/07/28 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1445.4 1392.5 Analysis
6 Cape Town Chess Federation Closed Chess Championships 2024 (U10) 2024/06/15 2024/06/15 Cape Town (WCT) Standard 60 0.83 5 4 3.0 1440.9 1373.5 Analysis
5 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 3.5 1458.7 1387.9 Analysis
4 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1459.0 1342.1 Analysis
3 Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed) 2024/02/24 2024/02/24 Cape Town (WCT) Rapid 30 0.60 5 5 5.0 1330.4 1360.4 Analysis
2 Cape of Good Hope Open Chess Tournament 2024 (U10) 2024/02/17 2024/02/17 Cape Town (WCT) Rapid 30 0.60 6 6 4.5 1330.4 1360.4 Analysis
1 CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 5.0 1330.4 1252.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
25 Stellenbosch Primary 2024 (U9) 2024/08/17 2024/08/17 Cape Winelands (WCW) Rapid 30 0.60 5 5 5.0 1434.5 1480.2 Analysis
24 CT Metro District East Top Schools Chess 2024 (U9 Mixed) 2024/07/27 2024/07/28 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1445.4 1392.5 Analysis
23 Cape Town Chess Federation Closed Chess Championships 2024 (U10) 2024/06/15 2024/06/15 Cape Town (WCT) Standard 60 0.83 5 4 3.0 1440.9 1373.5 Analysis
22 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 3.5 1458.7 1387.9 Analysis
21 Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1459.0 1342.1 Analysis
20 Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed) 2024/02/24 2024/02/24 Cape Town (WCT) Rapid 30 0.60 5 5 5.0 1330.4 1360.4 Analysis
19 Cape of Good Hope Open Chess Tournament 2024 (U10) 2024/02/17 2024/02/17 Cape Town (WCT) Rapid 30 0.60 6 6 4.5 1330.4 1360.4 Analysis
18 CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 5.0 1330.4 1252.8 Analysis
17 Kraaifontein Open 2023 (U10) 2023/12/09 2023/12/09 Cape Town (WCT) Rapid 30 0.60 6 6 3.5 1333.9 1355.9 Analysis
16 Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed) 2023/11/04 2023/11/04 Cape Town (WCT) Rapid 30 0.60 6 6 5.0 1297.4 1288.6 Analysis
15 Western Cape Closed Championship 2023 (U10) 2023/09/23 2023/09/23 Cape Town (WCT) Rapid 25 0.54 6 6 3.0 1296.0 1280.0 Analysis
14 Stellenbosch Primary Chess Tournament 2023 (U10) 2023/08/19 2023/08/19 Cape Winelands (WCW) Rapid 30 0.60 6 6 4.0 1286.5 1258.4 Analysis
13 Cape Winelands Open 2023 (U10) 2023/07/23 2023/07/23 Cape Winelands (WCW) Standard 70 0.87 5 5 3.0 1272.7 1237.3 Analysis
12 GPCA Rapid 2023 (U10) 2023/06/24 2023/06/24 Cape Town (WCT) Rapid 25 0.54 7 7 4.0 1240.0 1257.0 Analysis
11 WP Closed 2023 (U10) 2023/06/17 2023/06/17 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1240.0 1202.0 Analysis
10 Steinitz Open 2023 (U10) 2023/05/27 2023/05/27 Cape Town (WCT) Rapid 20 0.47 5 5 2.0 1247.5 1289.0 Analysis
9 Rhenish Primary Tournament 2023 (U10) 2023/05/13 2023/05/13 Cape Winelands (WCW) Rapid 30 0.60 5 5 3.0 1247.5 1289.0 Analysis
8 Western Cape PS Individuals 2023 (U9 Boys) 2023/05/05 2023/05/06 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1247.5 1200.0 Analysis
7 Cape Town Open 2023 (U10) 2023/03/25 2023/03/25 Cape Town (WCT) Rapid 25 0.54 6 0 0.0 1257.2 1305.9 Analysis
6 Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys) 2023/03/04 2023/03/04 Cape Town (WCT) Rapid 30 0.60 5 5 2.0 1257.2 1305.9 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 42 32 2 8 33.0 78.6 242.9 1266.0 1508.8
White 21 17 0 4 17.0 81.0 263.1 1278.4 1541.5
Black 21 15 2 4 16.0 76.2 222.6 1253.6 1476.2
Standard All 26 18 1 7 18.5 71.2 179.8 1289.2 1469.0
White 13 9 0 4 9.0 69.2 163.5 1308.5 1472.0
Black 13 9 1 3 9.5 73.1 196.2 1269.9 1466.1
Rapid All 16 14 1 1 14.5 90.6 345.3 1228.2 1573.5
White 8 8 0 0 8.0 100.0 425.0 1229.5 1654.5
Black 8 6 1 1 6.5 81.3 265.6 1227.0 1492.6
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 131 84 3 44 85.5 65.3 129.8 1243.5 1373.3
White 66 38 0 28 38.0 57.6 64.4 1260.8 1325.2
Black 65 46 3 16 47.5 73.1 196.2 1225.9 1422.1
Standard All 42 27 1 14 27.5 65.5 131.5 1283.5 1415.0
White 21 12 0 9 12.0 57.1 60.7 1320.1 1380.8
Black 21 15 1 5 15.5 73.8 202.4 1246.9 1449.3
Rapid All 89 57 2 30 58.0 65.2 128.9 1224.6 1353.5
White 45 26 0 19 26.0 57.8 66.1 1233.1 1299.3
Black 44 31 2 11 32.0 72.7 193.2 1215.9 1409.1
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 1160150273 Kruger, J (Josua Baruch) 4 2.0 2 0 2 50.0 1330.2 0.0 1330.2 View list
2 2150157088 He, L (Lily) 3 3.0 3 0 0 100.0 1339.6 425.0 1764.6 View list
3 1160150117 Lin, J (Junming) 3 2.0 2 0 1 66.7 1411.6 141.7 1553.3 View list
4 1150139446 Small, W (Wyatt) 3 2.0 2 0 1 66.7 1304.9 141.7 1446.5 View list
5 1140146769 Klopper, B (Ben) 3 0.0 0 0 3 0.0 1281.0 -425.0 856.0 View list
6 1150136552 Van Der Merwe, S (Schalk Wolf) 3 0.0 0 0 3 0.0 1347.4 -425.0 922.4 View list
7 1140137347 Whyatt, B (Benji) 3 0.0 0 0 3 0.0 1259.1 -425.0 834.1 View list
8 1150150111 Foster, B (Bjorn) 2 2.0 2 0 0 100.0 1313.9 425.0 1738.9 View list
9 2170147533 Klopper, E (Elbe) 2 2.0 2 0 0 100.0 1261.0 425.0 1686.0 View list
10 2150150276 Smith, W (Willow) 2 2.0 2 0 0 100.0 1340.5 425.0 1765.5 View list
11 1140143665 Somai, J (Jhash) 2 2.0 2 0 0 100.0 1303.3 425.0 1728.3 View list
12 1150145643 Tredoux, J (Jean) 2 2.0 2 0 0 100.0 1247.5 425.0 1672.5 View list
13 1150140719 Webb, P (Paul) 2 2.0 2 0 0 100.0 1253.2 425.0 1678.2 View list
14 1150191203 Beukes, B (Benjamin) 2 1.5 1 1 0 75.0 1396.3 212.5 1608.8 View list
15 1150142376 Baker, A (Andrew) 2 1.0 1 0 1 50.0 1349.5 0.0 1349.5 View list
16 2150147534 Sher, I (Ivy) 2 1.0 1 0 1 50.0 1244.6 0.0 1244.6 View list
17 1140134078 Manning, C (Callan) 2 0.0 0 0 2 0.0 1272.6 -425.0 847.6 View list
18 1140137341 Sher, E (Evan) 2 0.0 0 0 2 0.0 1252.3 -425.0 827.3 View list
19 1150137343 Stern, M (Mason) 2 0.0 0 0 2 0.0 1268.0 -425.0 843.0 View list
20 2140140713 Temmers, I (Isabella) 2 0.0 0 0 2 0.0 1220.0 -425.0 795.0 View list