Player Page

Jonas, O (Ongezwa)
Dob: 1998/06/23 (Adult)
Gender: Female
Chess SA id: 298092464
FIDE id:
Region: Nelson Mandela Bay (ENM)
Citizen: RSA
Title(s):
Last active: 2022/03/21 (774 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 rating1075.6
Curent Weighted rating1070.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1075.6
Current floor (min rating allowed)597.4
Current highest rating achieved1097.4
Current K-factor40
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)±198.0
Current Raw change used (final)0.0
Projected new Raw rating1075.6
Projected new Weighed rating1071.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1075.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1097.4
Projected new floor597.4
Projected new K-facor40
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 rating1093.6
Curent Weighted rating1093.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1093.6
Current floor (min rating allowed)593.6
Current highest rating achieved1093.6
Current K-factor40
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)±193.0
Current Raw change used (final)0.0
Projected new Raw rating1093.6
Projected new Weighed rating1093.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1093.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1093.6
Projected new floor593.6
Projected new K-facor40
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 rating1098.4
Curent Weighted rating1098.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1098.4
Current floor (min rating allowed)598.4
Current highest rating achieved1098.4
Current K-factor40
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)±191.6
Current Raw change used (final)0.0
Projected new Raw rating1098.4
Projected new Weighed rating1098.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1098.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1098.4
Projected new floor598.4
Projected new K-facor40
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)598.4
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 floor598.4
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 2022 Madibaz Rapid Chess Tournament 2 2022/03/21 2022/03/21 Nelson Mandela Bay (ENM) Rapid 15 0.39 5 5 0.0 1097.4 1200.0 Analysis
2 2019 USSA Championships (Women) 2019/12/02 2019/12/06 Sarah Baartman (ESB) Standard 90 0.94 9 9 3.5 1095.1 1088.4 Analysis
1 2018 USSA Championship (Ladies) 2018/07/02 2018/07/06 Gert Sibande (MGS) Standard 90 0.94 9 9 2.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
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 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 23 5 2 16 6.0 26.1 -203.3 1150.1 946.9
White 11 2 0 9 2.0 18.2 -270.5 1131.7 861.3
Black 12 3 2 7 4.0 33.3 -141.7 1167.0 1025.3
Standard All 18 5 2 11 6.0 33.3 -141.7 1134.2 992.5
White 8 2 0 6 2.0 25.0 -212.5 1106.1 893.6
Black 10 3 2 5 4.0 40.0 -85.0 1156.7 1071.7
Rapid All 5 0 0 5 0.0 0.0 -425.0 1207.5 782.5
White 3 0 0 3 0.0 0.0 -425.0 1200.0 775.0
Black 2 0 0 2 0.0 0.0 -425.0 1218.7 793.7
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2000119900 Hlase, RH (Refiloe Hope) 1 1.0 1 0 0 100.0 1095.1 425.0 1520.1 View list
2 2000119892 Mawetu, S (Sambo) 1 1.0 1 0 0 100.0 1095.1 425.0 1520.1 View list
3 2960104036 Nxumalo, N (Nontethelelo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 2940104045 Ndlovu, N (Nomonde) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 2980119903 Nhlambo, S (Sanchia) 1 1.0 1 0 0 100.0 1095.1 425.0 1520.1 View list
6 2000119897 Jim, Y (Yolanda) 1 0.5 0 1 0 50.0 1095.1 0.0 1095.1 View list
7 2980104038 Ngcobo, P (Pretty) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
8 295034156 Sepuru, R (Robin) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
9 1990119863 Sajini, A (Athenkosi) 1 0.0 0 0 1 0.0 1097.4 -425.0 672.4 View list
10 2000119901 Palesa, N (Nyai) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list
11 298068534 Nhlapo, K (Khabonena) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list
12 1010138979 Nemusunda, A (Ashley) 1 0.0 0 0 1 0.0 1097.4 -425.0 672.4 View list
13 2000119917 Ndlovu, B (Busisiwe) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list
14 299057586 Mbatha, J (Julieth) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
15 299092462 Mathe, S (Sinethemba) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
16 2980105995 Matenchi, P (Portia) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list
17 298089047 Marumo, N (Nozibusiso) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 203069988 Makhathini, S (Samkelisiwe) 1 0.0 0 0 1 0.0 1097.4 -425.0 672.4 View list
19 298084859 Gaseitsiwe, A (Amogelang) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 295047276 Fihla, S (Sibulele) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list