Player Page

Erasmus, S (Sonja)
Dob: 2015/02/06 (U10)
Gender: Female
Chess SA id: 2150156373
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/05/04 (14 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
Curent Raw rating1312.5
Curent Weighted rating1223.7
Curent Weighted performance1304.7
Current official/published rating (highest between Raw, WR and WP)1312.5
Current floor (min rating allowed)812.5
Current highest rating achieved1312.5
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)3.17
Difference (S-We)-0.17
Current Raw change (no limits, including tournament time weight)-5.1
Current min/max change allowed (with limits)±141.3
Current Raw change used (final)-5.1
Projected new Raw rating1307.4
Projected new Weighed rating1231.0
Projected new Weighted performance1304.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1307.4
Projected effective change (new Official - current Official)-5.1
Projected new highest rating1312.5
Projected new floor812.5
Projected new K-facor36
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
Curent Raw rating1309.1
Curent Weighted rating1224.7
Curent Weighted performance1301.3
Current official/published rating (highest between Raw, WR and WP)1309.1
Current floor (min rating allowed)809.1
Current highest rating achieved1309.1
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)3.18
Difference (S-We)-0.18
Current Raw change (no limits, including tournament time weight)-6.5
Current min/max change allowed (with limits)±141.9
Current Raw change used (final)-6.5
Projected new Raw rating1302.6
Projected new Weighed rating1231.6
Projected new Weighted performance1301.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1302.6
Projected effective change (new Official - current Official)-6.5
Projected new highest rating1309.1
Projected new floor809.1
Projected new K-facor36
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
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Tournament: 2024 D2 Schools Individuals (U9)
Start: 2024/05/04  End: 2024/05/04  Host: GWR  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1312.5  Rating gain/loss: -5.1
Type rating: 1309.1  Rating gain/loss: -6.5
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
5 2024 D2 Schools Individuals (U9) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 3.0 1312.5 1309.1 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 1261.8 1276.5 Analysis
3 2024 West Rand Juniors (U10) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 4.0 1217.3 1225.0 Analysis
2 2024 West Rand Open (U10) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 4.0 1151.3 1143.6 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1207.5 1202.3 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
10 2024 D2 Schools Individuals (U9) 2024/05/04 2024/05/04 West Rand (GWR) Standard 60 0.83 5 5 3.0 1312.5 1309.1 Analysis
9 2024 West Rand RHS Open (U10) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 3.0 1261.8 1276.5 Analysis
8 2024 West Rand Juniors (U10) 2024/03/09 2024/03/09 West Rand (GWR) Standard 60 0.83 5 5 4.0 1217.3 1225.0 Analysis
7 2024 West Rand Open (U10) 2024/02/03 2024/02/03 West Rand (GWR) Standard 60 0.83 5 5 4.0 1151.3 1143.6 Analysis
6 2024 Gauteng Inter-Region Chess Championship (U10B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1207.5 1202.3 Analysis
5 West Rand vs Bojanala Inter-Regional Championships 2023 (U10) 2023/10/14 2023/10/14 West Rand (GWR) Standard 60 0.83 5 5 0.0 1260.1 1266.7 Analysis
4 2023 West Rand Trials (U10) 2023/09/09 2023/09/09 West Rand (GWR) Standard 60 0.83 5 5 3.0 1256.8 1264.5 Analysis
3 West Rand at Bastion 2023 (U10) 2023/08/05 2023/08/05 West Rand (GWR) Standard 60 0.83 5 5 3.0 1235.6 1241.1 Analysis
2 2023 West Rand RHS Open (U10) 2023/06/10 2023/06/10 West Rand (GWR) Standard 60 0.83 5 5 3.0 1224.5 1229.2 Analysis
1 D2 Schools Individuals 2023 (U9 Boys+Girls) 2023/05/13 2023/05/13 West Rand (GWR) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 24 14 0 10 14.0 58.3 70.8 1252.2 1323.1
White 12 8 0 4 8.0 66.7 141.7 1243.0 1384.6
Black 12 6 0 6 6.0 50.0 0.0 1261.5 1261.5
Standard All 24 14 0 10 14.0 58.3 70.8 1252.2 1323.1
White 12 8 0 4 8.0 66.7 141.7 1243.0 1384.6
Black 12 6 0 6 6.0 50.0 0.0 1261.5 1261.5
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 49 26 0 23 26.0 53.1 26.0 1257.3 1283.3
White 25 13 0 12 13.0 52.0 17.0 1247.6 1264.6
Black 24 13 0 11 13.0 54.2 35.4 1267.3 1302.7
Standard All 49 26 0 23 26.0 53.1 26.0 1257.3 1283.3
White 25 13 0 12 13.0 52.0 17.0 1247.6 1264.6
Black 24 13 0 11 13.0 54.2 35.4 1267.3 1302.7
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1150157468 Ninham, G (Grant) 3 3.0 3 0 0 100.0 1247.7 425.0 1672.7 View list
2 1140156381 Nxumalo, T (Thando Amohelang) 2 2.0 2 0 0 100.0 1217.8 425.0 1642.8 View list
3 1150159296 Willemse, B (Bernard) 2 2.0 2 0 0 100.0 1184.3 425.0 1609.3 View list
4 1160161346 White, J (Joshua) 2 1.0 1 0 1 50.0 1184.3 0.0 1184.3 View list
5 1150149223 Botha, AZ (Adriaan Zander) 2 0.0 0 0 2 0.0 1248.7 -425.0 823.7 View list
6 1150149226 De Koker, R (Rigardt) 1 1.0 1 0 0 100.0 1224.5 425.0 1649.5 View list
7 1150301051 Carr, P (Phillip Stuart) 1 1.0 1 0 0 100.0 1261.8 425.0 1686.8 View list
8 1160149635 Gouws, P (Philip) 1 1.0 1 0 0 100.0 1151.3 425.0 1576.3 View list
9 1150303142 Gege, P (Phumlane) 1 1.0 1 0 0 100.0 1312.5 425.0 1737.5 View list
10 2160159291 Kalimashe, L (Liyabukwa) 1 1.0 1 0 0 100.0 1151.3 425.0 1576.3 View list
11 1150149229 Jordaan, L (Louryn) 1 1.0 1 0 0 100.0 1217.3 425.0 1642.3 View list
12 2140161843 Jacobs, Z (Zunique) 1 1.0 1 0 0 100.0 1256.8 425.0 1681.8 View list
13 2140161842 Jacobs, L (Lienke) 1 1.0 1 0 0 100.0 1256.8 425.0 1681.8 View list
14 2150140298 Mathabatha, B (Bubo) 1 1.0 1 0 0 100.0 1235.6 425.0 1660.6 View list
15 2140157466 Mangqayi, B (Busisiwe) 1 1.0 1 0 0 100.0 1224.5 425.0 1649.5 View list
16 1150159298 Kloppers, B (Ben) 1 1.0 1 0 0 100.0 1235.6 425.0 1660.6 View list
17 2150156380 Mostafa, S (Sumaya Sharmin) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
18 1180159293 Myburgh, M (Morne) 1 1.0 1 0 0 100.0 1151.3 425.0 1576.3 View list
19 1150302463 Oldjohn, L (Lazola) 1 1.0 1 0 0 100.0 1312.5 425.0 1737.5 View list
20 2150303147 Phantsi, N (Nina) 1 1.0 1 0 0 100.0 1312.5 425.0 1737.5 View list