Player Page

Jona, S (Samkelisiwe)
Dob: 2011/11/11 (U14)
Gender: Female
Chess SA id: 2110158728
FIDE id:
Region: Gert Sibande (MGS)
Citizen: RSA
Title(s):
Last active: 2024/08/16 (99 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 rating1268.8
Current Weighted rating1213.3
Current Weighted performance1193.2
Current official/published rating (highest between Raw, WR and WP)1268.8
Current highest rating achieved1268.8
Current floor (min rating allowed)768.8
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)±150.3
Current Raw change used (final)0.0
Projected new Raw rating1268.8
Projected new Weighed rating1116.8
Projected new Weighted performance1193.2
Projected new final Raw rating (if new WP > new Raw)1268.8
Projected new highest rating1268.8
Projected new floor768.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1268.8
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
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 rating1317.3
Current Weighted rating1226.5
Current Weighted performance1256.0
Current official/published rating (highest between Raw, WR and WP)1317.3
Current highest rating achieved1317.3
Current floor (min rating allowed)817.3
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)±140.3
Current Raw change used (final)0.0
Projected new Raw rating1317.3
Projected new Weighed rating1129.3
Projected new Weighted performance1256.0
Projected new final Raw rating (if new WP > new Raw)1317.3
Projected new highest rating1317.3
Projected new floor817.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1317.3
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
2 Top Schools Gert Sibande 2024 (Girls) 2024/08/16 2024/08/16 Gert Sibande (MGS) Rapid 30 0.60 5 5 3.5 1196.4 1199.6 Analysis
1 Govan Mbeki 2024 (Girls) 2024/08/02 2024/08/02 Gert Sibande (MGS) Rapid 30 0.60 5 5 5.0 1196.4 1199.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 Top Schools Gert Sibande 2024 (Girls) 2024/08/16 2024/08/16 Gert Sibande (MGS) Rapid 30 0.60 5 5 3.5 1196.4 1199.6 Analysis
4 Govan Mbeki 2024 (Girls) 2024/08/02 2024/08/02 Gert Sibande (MGS) Rapid 30 0.60 5 5 5.0 1196.4 1199.6 Analysis
3 2023 Gert Sibande League (Girls) 2023/08/25 2023/08/25 Gert Sibande (MGS) Rapid 30 0.60 5 4 2.0 1192.7 1190.6 Analysis
2 Govin Mbeki Teams Chess Tournament 2023 (U13 Girls) 2023/08/18 2023/08/18 Gert Sibande (MGS) Rapid 30 0.60 5 4 2.0 1192.7 1190.6 Analysis
1 Hoëveldgroep 2023 (Dogters) 2023/07/28 2023/07/28 Gert Sibande (MGS) Rapid 30 0.60 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 8 1 1 8.5 85.0 297.5 1190.9 1488.4
White 6 5 0 1 5.0 83.3 283.3 1191.6 1474.9
Black 4 3 1 0 3.5 87.5 318.8 1190.0 1508.7
Standard 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
Rapid All 10 8 1 1 8.5 85.0 297.5 1190.9 1488.4
White 6 5 0 1 5.0 83.3 283.3 1191.6 1474.9
Black 4 3 1 0 3.5 87.5 318.8 1190.0 1508.7
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 23 14 1 8 14.5 63.0 110.9 1203.8 1314.7
White 12 7 0 5 7.0 58.3 70.8 1207.1 1277.9
Black 11 7 1 3 7.5 68.2 154.5 1200.2 1354.8
Standard 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
Rapid All 23 14 1 8 14.5 63.0 110.9 1203.8 1314.7
White 12 7 0 5 7.0 58.3 70.8 1207.1 1277.9
Black 11 7 1 3 7.5 68.2 154.5 1200.2 1354.8
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 2100144827 Tshekoeng, R (Rorisang) 3 0.0 0 0 3 0.0 1195.1 -425.0 770.1 View list
2 2130308577 Koen, C (Cara) 2 2.0 2 0 0 100.0 1196.4 425.0 1621.4 View list
3 2130143986 De Beer, C (Caitlin) 2 1.0 1 0 1 50.0 1196.3 0.0 1196.3 View list
4 2100158731 Mendze, M (Minenhle) 2 0.0 0 0 2 0.0 1192.7 -425.0 767.7 View list
5 2110308578 Kudiwa, C (Chloe) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
6 2130143966 Pillay, A (Alexa) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
7 2130161376 Kajeni, U (Uyanda) 1 1.0 1 0 0 100.0 1192.7 425.0 1617.7 View list
8 2120308575 Groenewald, Z (Zanic) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
9 2130158724 Grobler, R (Ruzelle) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 2100145046 Masango, S (Sinehlanhla) 1 1.0 1 0 0 100.0 1192.7 425.0 1617.7 View list
11 2100161378 Manqina, A (Alicia) 1 1.0 1 0 0 100.0 1192.7 425.0 1617.7 View list
12 2120143871 Kleyn, L (Layla) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
13 2130308576 Khiba, O (Oratile) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
14 2120308573 Botha, J (Jasmine) 1 1.0 1 0 0 100.0 1196.4 425.0 1621.4 View list
15 2100158720 Beukes, B (Beulah) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
16 2120309722 Cindi, A (Azande) 1 0.5 0 1 0 50.0 1196.4 0.0 1196.4 View list
17 2100143959 Magombeyi, A (Ashley) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 2110309724 Khanyile, A (Andiswa) 1 0.0 0 0 1 0.0 1196.4 -425.0 771.4 View list