Player Page

Duma, S (Sibonelo)
Dob: 1990/04/12 (Adult)
Gender: Male
Chess SA id: 190092520
FIDE id:
Region: Ethekwini (KED)
Citizen: RSA
Title(s):
Last active: 2019/12/06 (1624 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 rating1635.8
Curent Weighted rating1510.8
Curent Weighted performance587.8
Current official/published rating (highest between Raw, WR and WP)1635.8
Current floor (min rating allowed)1135.8
Current highest rating achieved1635.8
Current K-factor28
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)±89.1
Current Raw change used (final)0.0
Projected new Raw rating1635.8
Projected new Weighed rating1523.3
Projected new Weighted performance587.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1635.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1635.8
Projected new floor1135.8
Projected new K-facor28
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 rating1585.2
Curent Weighted rating1486.9
Curent Weighted performance561.1
Current official/published rating (highest between Raw, WR and WP)1585.2
Current floor (min rating allowed)1085.2
Current highest rating achieved1585.2
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)±95.8
Current Raw change used (final)0.0
Projected new Raw rating1585.2
Projected new Weighed rating1496.7
Projected new Weighted performance561.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1585.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1585.2
Projected new floor1085.2
Projected new K-facor32
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 rating1372.4
Curent Weighted rating1301.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1372.4
Current floor (min rating allowed)872.4
Current highest rating achieved1372.4
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)±129.7
Current Raw change used (final)0.0
Projected new Raw rating1372.4
Projected new Weighed rating1308.3
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1372.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1372.4
Projected new floor872.4
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 rating1347.1
Curent Weighted rating1330.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1347.1
Current floor (min rating allowed)872.4
Current highest rating achieved1347.1
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)±134.5
Current Raw change used (final)0.0
Projected new Raw rating1347.1
Projected new Weighed rating1332.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1347.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1347.1
Projected new floor872.4
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
13 2019 USSA Championships (Blitz) 2019/12/04 2019/12/04 Sarah Baartman (ESB) Blitz 5 0.18 9 9 4.0 1408.3 1325.0 Analysis
12 2019 USSA Championships (Open) 2019/12/02 2019/12/06 Sarah Baartman (ESB) Standard 90 0.94 9 9 4.0 1408.3 1403.4 Analysis
11 2019 DCC Third Swiss 2019/10/10 2019/11/21 Ethekwini (KED) Standard 120 1.00 6 4 1.0 1472.3 1470.0 Analysis
10 2019 Darryl Mhlongo Blitz 2019/10/03 2019/10/03 Ethekwini (KED) Blitz 5 0.18 8 8 5.0 1469.3 1272.4 Analysis
9 2019 John Blackburn Memorial Swiss 2019/08/01 2019/09/19 Ethekwini (KED) Standard 120 1.00 7 5 3.0 1494.6 1496.6 Analysis
8 2019 Ethekwini Open (A) 2019/03/30 2019/03/31 Ethekwini (KED) Standard 60 0.83 6 5 4.0 1485.8 1474.2 Analysis
7 2019 Durban Chess Club Championship (C) 2019/03/14 2019/05/09 Ethekwini (KED) Standard 120 1.00 9 6 5.0 1497.5 1502.4 Analysis
6 2019 Ethekwini Club Challenge 2019/02/24 2019/02/24 Ethekwini (KED) Rapid 25 0.54 6 4 3.0 1471.5 1200.0 Analysis
5 2018 Durban CC Third Swiss 2018/10/11 2018/11/15 Ethekwini (KED) Standard 120 1.00 6 5 2.0 1490.1 1493.4 Analysis
4 2018 Mhlongo Memorial Blitz 2018/10/04 2018/10/04 Ethekwini (KED) Blitz 5 0.18 9 9 5.5 1487.1 1200.0 Analysis
3 2018 Ethekwini League 2018/09/09 2018/10/21 Ethekwini (KED) Standard 90 0.94 7 5 2.5 1487.1 1486.4 Analysis
2 2018 John Blackburn Memorial 2018/08/02 2018/09/27 Ethekwini (KED) Standard 120 1.00 7 7 6.0 1365.8 1365.8 Analysis
1 2018 USSA Championship (Open) 2018/07/02 2018/07/06 Gert Sibande (MGS) Standard 90 0.94 9 9 6.0 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 85 50 2 33 51.0 60.0 85.0 1443.0 1528.0
White 42 30 2 10 31.0 73.8 202.4 1403.9 1606.3
Black 43 20 0 23 20.0 46.5 -29.7 1481.3 1451.6
Standard All 55 33 1 21 33.5 60.9 92.7 1447.8 1540.5
White 26 18 1 7 18.5 71.2 179.8 1397.1 1577.0
Black 29 15 0 14 15.0 51.7 14.7 1493.2 1507.9
Rapid All 4 3 0 1 3.0 75.0 212.5 1365.3 1577.8
White 3 2 0 1 2.0 66.7 141.7 1347.3 1489.0
Black 1 1 0 0 1.0 100.0 425.0 1419.2 1844.2
Blitz All 26 14 1 11 14.5 55.8 49.0 1444.9 1494.0
White 13 10 1 2 10.5 80.8 261.5 1430.4 1692.0
Black 13 4 0 9 4.0 30.8 -163.5 1459.4 1295.9
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1000104049 Makhathini, X (Xolani) 3 3.0 3 0 0 100.0 1479.7 425.0 1904.7 View list
2 100091894 Mkhaliphi, B (Bandile) 3 3.0 3 0 0 100.0 1493.1 425.0 1918.1 View list
3 185094663 Seebran, N (Nitesh) 2 2.0 2 0 0 100.0 1431.7 425.0 1856.7 View list
4 197089415 Yusuf, Z (Zain) 2 2.0 2 0 0 100.0 1483.4 425.0 1908.4 View list
5 106085345 Govender, L (Lesharn) 2 1.0 1 0 1 50.0 1488.6 0.0 1488.6 View list
6 111092159 Kumarasamy, D (Daaruk) 2 1.0 1 0 1 50.0 1483.4 0.0 1483.4 View list
7 191008051 Du Preez, JL (Johannes) 2 1.0 1 0 1 50.0 1426.4 0.0 1426.4 View list
8 208082585 Pillai, N (Nanditha) 2 1.0 1 0 1 50.0 1484.9 0.0 1484.9 View list
9 178032502 Rooplal, D (Desmond) 2 1.0 1 0 1 50.0 1480.8 0.0 1480.8 View list
10 108079781 Soojay, J (Jorah) 2 1.0 1 0 1 50.0 1486.4 0.0 1486.4 View list
11 1930104062 Thebe, A (Andile) 2 1.0 1 0 1 50.0 1481.9 0.0 1481.9 View list
12 163006020 Danisa, CT (Cyril) 2 0.0 0 0 2 0.0 1417.5 -425.0 992.5 View list
13 100081978 Madiya, S (Sisekelo) 2 0.0 0 0 2 0.0 1470.8 -425.0 1045.8 View list
14 198082772 Sekharume, L (Lefu) 2 0.0 0 0 2 0.0 1408.3 -425.0 983.3 View list
15 199042452 Waters, A (Anre) 2 0.0 0 0 2 0.0 1408.3 -425.0 983.3 View list
16 1960104013 Magatsela, B (Bradley) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
17 171010743 Gopaulsingh, N (Nadean) 1 1.0 1 0 0 100.0 1365.8 425.0 1790.8 View list
18 197006856 De Villiers, OA (Ockert) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
19 199066096 Kubheka, L (Lucky) 1 1.0 1 0 0 100.0 1408.3 425.0 1833.3 View list
20 197015404 Khawula, W (Welile) 1 1.0 1 0 0 100.0 1487.1 425.0 1912.1 View list