Player Page

Ziervogel, K (Keira)
Dob: 2008/10/04 (U18)
Gender: Female
Chess SA id: 2080113546
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2024/10/05 (6 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 rating1369.0
Current Weighted rating1342.0
Current Weighted performance1277.8
Current official/published rating (highest between Raw, WR and WP)1369.0
Current highest rating achieved1369.0
Current floor (min rating allowed)869.0
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)2.95
Difference (S-We)0.03
Current Raw change (no limits, including tournament time weight)1.2
Current min/max change allowed (with limits)±130.3
Current Raw change used (final)1.2
Projected new Raw rating1370.2
Projected new Weighed rating1236.0
Projected new Weighted performance1299.1
Projected new final Raw rating (if new WP > new Raw)1370.2
Projected new highest rating1370.2
Projected new floor870.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1370.2
Projected effective change (new Official - current Official)+1.2
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 rating1338.0
Current Weighted rating1328.2
Current Weighted performance1186.2
Current official/published rating (highest between Raw, WR and WP)1338.0
Current highest rating achieved1355.3
Current floor (min rating allowed)855.3
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)±136.2
Current Raw change used (final)0.0
Projected new Raw rating1338.0
Projected new Weighed rating1223.3
Projected new Weighted performance1186.2
Projected new final Raw rating (if new WP > new Raw)1338.0
Projected new highest rating1355.3
Projected new floor855.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1338.0
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 rating1319.8
Current Weighted rating1288.3
Current Weighted performance1196.3
Current official/published rating (highest between Raw, WR and WP)1319.8
Current highest rating achieved1319.8
Current floor (min rating allowed)819.8
Current K-factor36
Games played this month5
Score (S)3.0
Expected score (We)3.96
Difference (S-We)-0.96
Current Raw change (no limits, including tournament time weight)-34.6
Current min/max change allowed (with limits)±139.8
Current Raw change used (final)-34.6
Projected new Raw rating1285.2
Projected new Weighed rating1186.0
Projected new Weighted performance1274.0
Projected new final Raw rating (if new WP > new Raw)1285.2
Projected new highest rating1319.8
Projected new floor819.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1285.2
Projected effective change (new Official - current Official)-34.6
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 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 Top Schools 2024 (U19 Girls)
Start: 2024/10/05  End: 2024/10/05  Host: GE  Type: Rapid   Time: 35  Time weight: 0.66  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1369.0  Rating gain/loss: 1.2
Type rating: 1319.8  Rating gain/loss: -34.6
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Gauteng Top Schools 2024 (U19 Girls) 2024/10/05 2024/10/05 Ekurhuleni (GE) Rapid 35 0.66 5 5 3.0 1369.0 1319.8 Analysis
2 Chess Molecules Open Chess Tournament 2024 (High School Girls) 2024/06/15 2024/06/15 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 4.0 1341.8 1277.7 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U16 Girls) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 2.0 1350.6 1345.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
26 Gauteng Top Schools 2024 (U19 Girls) 2024/10/05 2024/10/05 Ekurhuleni (GE) Rapid 35 0.66 5 5 3.0 1369.0 1319.8 Analysis
25 Chess Molecules Open Chess Tournament 2024 (High School Girls) 2024/06/15 2024/06/15 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 4.0 1341.8 1277.7 Analysis
24 2024 Gauteng Inter-Region Chess Championship (U16 Girls) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 4 2.0 1350.6 1345.9 Analysis
23 Africawide Chess Championship 2023 (Open) 2023/11/03 2023/11/05 Johannesburg Metro (GJM) Standard 90 0.94 7 1 0.0 1360.1 1355.3 Analysis
22 2023 Gauteng Top Schools (U15 Girls) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 5 4.5 1285.9 1268.9 Analysis
21 Ekurhuleni Chess Trial 3 2023 (U16) 2023/06/17 2023/06/17 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1237.7 1233.5 Analysis
20 Chess Molecules 16 June Tournament 2023 (High School Girls) 2023/06/16 2023/06/16 Ekurhuleni (GE) Rapid 30 0.60 5 5 3.5 1237.7 1256.1 Analysis
19 Gauteng Schools Individual Finals 2023 (U15 Girls) 2023/05/27 2023/05/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1212.9 1209.3 Analysis
18 National All Girls Festival 2023 2023/04/28 2023/04/30 Mangaung (FMB) Standard 62 0.84 7 7 2.0 1260.6 1244.8 Analysis
17 Ekurhuleni Trials 2 2023 (U16) 2023/04/22 2023/04/22 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1260.6 1244.8 Analysis
16 2023 South African Junior Closed Chess Championships (U16 Girls) 2023/03/31 2023/04/04 Chess South Africa (CSA) Standard 120 1.00 9 9 1.0 1260.6 1244.8 Analysis
15 Ekhuruleni Chess Trials 1 2023 (U16) 2023/03/25 2023/03/25 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1284.1 1264.6 Analysis
14 Ekurhuleni Springs Open 4 March 2023 (C) 2023/03/04 2023/03/04 Ekurhuleni (GE) Standard 62 0.84 5 4 0.5 1284.1 1264.6 Analysis
13 Chess Power House Feb RR 2023 (Junior) 2023/02/18 2023/02/19 Johannesburg Metro (GJM) Standard 62 0.84 5 5 2.0 1285.0 1263.5 Analysis
12 2022 South African Junior Wild Card Chess Championships (U16 Girls) 2022/12/09 2022/12/12 4 Knights (4K) Standard 120 1.00 7 6 1.5 1340.4 1303.3 Analysis
11 2022 South African Junior Team Chess Championships (U14-U18 Girls) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 5 3.5 1340.4 1303.3 Analysis
10 OR Tambo Soncini Finals 2022 (Girls) 2022/10/29 2022/10/29 Ekurhuleni (GE) Rapid 30 0.60 5 5 4.0 1358.4 1274.8 Analysis
9 Chess Power House Rapid 2022 (High School) 2022/10/22 2022/10/22 Johannesburg Metro (GJM) Rapid 30 0.60 5 4 1.5 1358.4 1274.8 Analysis
8 ACB Tournament 2022 (C) 2022/10/08 2022/10/08 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1358.4 1251.6 Analysis
7 Ekurhuleni Soncini Playoffs 2022 (Girls) 2022/09/24 2022/09/24 Ekurhuleni (GE) Rapid 30 0.60 5 5 5.0 1168.0 1200.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 14 9 0 5 9.0 64.3 121.4 1289.7 1411.1
White 6 3 0 3 3.0 50.0 0.0 1310.7 1310.7
Black 8 6 0 2 6.0 75.0 212.5 1273.9 1486.4
Standard All 4 2 0 2 2.0 50.0 0.0 1294.2 1294.2
White 2 1 0 1 1.0 50.0 0.0 1372.8 1372.8
Black 2 1 0 1 1.0 50.0 0.0 1215.7 1215.7
Rapid All 10 7 0 3 7.0 70.0 170.0 1287.9 1457.9
White 4 2 0 2 2.0 50.0 0.0 1279.6 1279.6
Black 6 5 0 1 5.0 83.3 283.3 1293.4 1576.7
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 128 64 9 55 68.5 53.5 29.9 1259.5 1289.4
White 66 35 2 29 36.0 54.5 38.6 1255.0 1293.6
Black 62 29 7 26 32.5 52.4 20.6 1264.3 1284.9
Standard All 94 41 7 46 44.5 47.3 -22.6 1272.8 1250.2
White 49 25 2 22 26.0 53.1 26.0 1263.8 1289.8
Black 45 16 5 24 18.5 41.1 -75.6 1282.5 1207.0
Rapid All 34 23 2 9 24.0 70.6 175.0 1222.9 1397.9
White 17 10 0 7 10.0 58.8 75.0 1229.6 1304.6
Black 17 13 2 2 14.0 82.4 275.0 1216.1 1491.1
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 2080096094 Padayachy, S (Shreya) 5 0.5 0 1 4 10.0 1315.6 -340.0 975.6 View list
2 2080140157 Jain, C (Chesta) 3 1.5 1 1 1 50.0 1295.0 0.0 1295.0 View list
3 2070135689 Okafor, G (Grace) 3 1.5 1 1 1 50.0 1312.6 0.0 1312.6 View list
4 208082677 Radia, D (Diya) 3 1.0 1 0 2 33.3 1323.3 -141.7 1181.7 View list
5 2090146781 Dingalibaba, R (Reabetswe Ziyanda) 2 2.0 2 0 0 100.0 1263.2 425.0 1688.2 View list
6 1090139565 Myburgh, X (Xuan) 2 2.0 2 0 0 100.0 1260.9 425.0 1685.9 View list
7 2080143482 Mzizi, A (Ayanda) 2 2.0 2 0 0 100.0 1249.4 425.0 1674.4 View list
8 2070140166 Yalcoue, A (Aissatou) 2 2.0 2 0 0 100.0 1152.6 425.0 1577.6 View list
9 2080113542 Ledwaba, M (Morongwa) 2 1.0 1 0 1 50.0 1263.2 0.0 1263.2 View list
10 207092830 Netshimbupfe, W (Wanga) 2 1.0 1 0 1 50.0 1300.5 0.0 1300.5 View list
11 2070133804 Nyarenda, M (Miranda) 2 0.5 0 1 1 25.0 1300.5 -212.5 1088.0 View list
12 2070110294 Nkhwashu, G (Geraldine) 2 0.0 0 0 2 0.0 1300.5 -425.0 875.5 View list
13 1090119738 Shen Yu, F (Frank) 2 0.0 0 0 2 0.0 1216.2 -425.0 791.2 View list
14 2080144526 Groves, C (Chanique) 1 1.0 1 0 0 100.0 1358.4 425.0 1783.4 View list
15 2120108512 Ellis, S (Suane) 1 1.0 1 0 0 100.0 1340.4 425.0 1765.4 View list
16 2100108334 Du Plessis, A (Amelia) 1 1.0 1 0 0 100.0 1340.4 425.0 1765.4 View list
17 2090118175 Dingalibala, R (Reabetswe) 1 1.0 1 0 0 100.0 1358.4 425.0 1783.4 View list
18 208083655 Bartman, J (Jadey) 1 1.0 1 0 0 100.0 1358.4 425.0 1783.4 View list
19 2090155380 Fourie, J (Jolandi) 1 1.0 1 0 0 100.0 1212.9 425.0 1637.9 View list
20 208066161 Bhika, J (Jyotikka) 1 1.0 1 0 0 100.0 1168.0 425.0 1593.0 View list