Player Page

Ngubeni, JM (Jackie)
Dob: 1962/10/17 (Adult)
Gender: Male
Chess SA id: 162027530
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s): PA
Last active: 2024/03/23 (28 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 rating1414.7
Curent Weighted rating1532.6
Curent Weighted performance1361.7
Current official/published rating (highest between Raw, WR and WP)1532.6
Current floor (min rating allowed)1219.0
Current highest rating achieved1719.0
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)±122.1
Current Raw change used (final)0.0
Projected new Raw rating1414.7
Projected new Weighed rating1521.8
Projected new Weighted performance1361.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1521.8
Projected effective change (new Official - current Official)-10.8
Projected new highest rating1719.0
Projected new floor1219.0
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 rating1394.6
Curent Weighted rating1512.8
Curent Weighted performance1361.3
Current official/published rating (highest between Raw, WR and WP)1512.8
Current floor (min rating allowed)1219.0
Current highest rating achieved1719.0
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)±125.7
Current Raw change used (final)0.0
Projected new Raw rating1394.6
Projected new Weighed rating1501.5
Projected new Weighted performance1361.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1501.5
Projected effective change (new Official - current Official)-11.3
Projected new highest rating1719.0
Projected new floor1219.0
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 rating1592.9
Curent Weighted rating1582.9
Curent Weighted performance1217.4
Current official/published rating (highest between Raw, WR and WP)1592.9
Current floor (min rating allowed)1219.0
Current highest rating achieved1719.0
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)±94.7
Current Raw change used (final)0.0
Projected new Raw rating1592.9
Projected new Weighed rating1584.7
Projected new Weighted performance1217.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1592.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1719.0
Projected new floor1219.0
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 rating1570.7
Curent Weighted rating1599.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1599.0
Current floor (min rating allowed)1219.0
Current highest rating achieved1719.0
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)±97.8
Current Raw change used (final)0.0
Projected new Raw rating1570.7
Projected new Weighed rating1595.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1595.8
Projected effective change (new Official - current Official)-3.1
Projected new highest rating1719.0
Projected new floor1219.0
Projected new K-facor28
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 1st Knights Open Tournament 2024 (B) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
5 2024 Chris Greyling Open Chess Tournament (B) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
4 DR KKD Ferdies Mar 2024 (A) 2024/03/02 2024/03/02 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
3 Randburg Chess Club New Year Swiss 2024 2024/02/06 2024/02/06 Johannesburg Metro (GJM) Standard 90 0.94 7 7 3.5 1513.1 1501.0 Analysis
2 2024 Piet Robbertse Open Chess Tournament (A) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1498.6 1480.6 Analysis
1 Randburg New Year Rapid 2024 2024/01/23 2024/01/30 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 2.0 1513.6 1660.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
36 1st Knights Open Tournament 2024 (B) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
35 2024 Chris Greyling Open Chess Tournament (B) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
34 DR KKD Ferdies Mar 2024 (A) 2024/03/02 2024/03/02 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 2.0 1513.1 1501.0 Analysis
33 Randburg Chess Club New Year Swiss 2024 2024/02/06 2024/02/06 Johannesburg Metro (GJM) Standard 90 0.94 7 7 3.5 1513.1 1501.0 Analysis
32 2024 Piet Robbertse Open Chess Tournament (A) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1498.6 1480.6 Analysis
31 Randburg New Year Rapid 2024 2024/01/23 2024/01/30 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 2.0 1513.6 1660.9 Analysis
30 Africawide Chess Championship 2023 (Open) 2023/11/03 2023/11/05 Johannesburg Metro (GJM) Standard 90 0.94 7 6 2.0 1514.7 1486.3 Analysis
29 2023 Moja Chess Extravaganza (Blitz) 2023/10/03 2023/10/03 Frances Baard (NCF) Blitz 5 0.18 7 7 3.0 1528.8 1626.1 Analysis
28 2023 Moja Chess Extravaganza (B) 2023/09/30 2023/10/04 Frances Baard (NCF) Standard 120 1.00 9 9 5.0 1528.8 1492.5 Analysis
27 2023 Thomas Lechelele North West Open (Presige) 2023/09/15 2023/09/16 Dr Kenneth Kaunda (NWP) Standard 90 0.94 7 6 2.0 1568.5 1526.7 Analysis
26 Chess Power House 2023 (A) 2023/08/19 2023/08/20 Johannesburg Metro (GJM) Standard 90 0.94 5 4 0.0 1598.3 1560.9 Analysis
25 Randburg Club Championship Rapid 2023 2023/08/15 2023/08/22 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 4.0 1598.3 1590.5 Analysis
24 Eureka Open 2023 (A) 2023/07/29 2023/07/29 Sedibeng (GSV) Standard 60 0.83 5 4 0.0 1637.8 1603.5 Analysis
23 2023 Lubowski Open Tournament (A) 2023/06/24 2023/06/25 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1572.6 1569.9 Analysis
22 Randburg Mid-Year Themed Rapid 2023 2023/05/30 2023/06/06 Johannesburg Metro (GJM) Rapid 25 0.54 6 6 5.0 1572.6 1548.8 Analysis
21 Moja Open 2022 (Prestige) 2022/03/19 2022/03/22 Frances Baard (NCF) Standard 120 1.00 7 6 2.0 1578.2 1573.8 Analysis
20 JMC @ Pinnacle 2022 (Premier) 2022/02/19 2022/02/20 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1614.5 1611.3 Analysis
19 Pinnacle College Waterfall Open (Premier) 2021/10/02 2021/10/03 Johannesburg Metro (GJM) Standard 90 0.94 6 6 2.0 1637.9 1634.0 Analysis
18 Spring at The King`s Gate 2021 (A) 2021/09/11 2021/09/11 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1578.4 1587.4 Analysis
17 2021 Gauteng North Open Tournament (A) 2021/08/28 2021/08/29 Tshwane (GTP) Standard 90 0.94 5 4 2.0 1578.4 1591.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 33 13 1 19 13.5 40.9 -77.3 1476.1 1398.8
White 19 9 1 9 9.5 50.0 0.0 1469.4 1469.4
Black 14 4 0 10 4.0 28.6 -182.1 1485.2 1303.1
Standard All 27 11 1 15 11.5 42.6 -63.0 1467.3 1404.3
White 16 8 1 7 8.5 53.1 26.6 1452.8 1479.4
Black 11 3 0 8 3.0 27.3 -193.2 1488.3 1295.1
Rapid All 6 2 0 4 2.0 33.3 -141.7 1515.8 1374.1
White 3 1 0 2 1.0 33.3 -141.7 1557.5 1415.8
Black 3 1 0 2 1.0 33.3 -141.7 1474.0 1332.3
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 207 100 5 102 102.5 49.5 -4.1 1534.7 1530.6
White 106 56 3 47 57.5 54.2 36.1 1518.9 1555.0
Black 101 44 2 55 45.0 44.6 -46.3 1551.4 1505.1
Standard All 147 68 4 75 70.0 47.6 -20.2 1524.3 1504.0
White 76 39 3 34 40.5 53.3 28.0 1492.5 1520.5
Black 71 29 1 41 29.5 41.5 -71.8 1558.3 1486.4
Rapid All 35 19 0 16 19.0 54.3 36.4 1528.6 1565.0
White 18 12 0 6 12.0 66.7 141.7 1550.0 1691.7
Black 17 7 0 10 7.0 41.2 -75.0 1506.0 1431.0
Blitz All 25 13 1 11 13.5 54.0 34.0 1604.9 1638.9
White 12 5 0 7 5.0 41.7 -70.8 1639.3 1568.5
Black 13 8 1 4 8.5 65.4 130.8 1573.2 1704.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1570160789 Tracey, T (Terence) 3 3.0 3 0 0 100.0 1541.7 425.0 1966.7 View list
2 198056522 Teeke, K (Karabo) 3 1.0 1 0 2 33.3 1623.9 -141.7 1482.3 View list
3 1930111397 Ruchaka, K (Kenneth) 3 0.0 0 0 3 0.0 1605.2 -425.0 1180.2 View list
4 179057929 Essop, H (Haroon) 2 2.0 2 0 0 100.0 1555.7 425.0 1980.7 View list
5 1070104078 Price, DR (Daelen) 2 1.5 1 1 0 75.0 1586.8 212.5 1799.3 View list
6 155015320 Kgosi, BV (Bushy) 2 1.0 1 0 1 50.0 1567.5 0.0 1567.5 View list
7 182017839 Lesuthu, KM (Kali) 2 1.0 1 0 1 50.0 1595.0 0.0 1595.0 View list
8 184016728 Makhosonke, KM (Kuhlase) 2 1.0 1 0 1 50.0 1602.3 0.0 1602.3 View list
9 106067184 Mthembu, L (Lebogang) 2 1.0 1 0 1 50.0 1632.5 0.0 1632.5 View list
10 1100103439 Mungal, E (Ethan) 2 1.0 1 0 1 50.0 1543.1 0.0 1543.1 View list
11 1080103221 Nwedo, K (Khodani) 2 1.0 1 0 1 50.0 1593.5 0.0 1593.5 View list
12 1130116883 Tak, R (Rannveer) 2 1.0 1 0 1 50.0 1543.1 0.0 1543.1 View list
13 169042155 Vorster, SPM (Stephanus) 2 1.0 1 0 1 50.0 1568.2 0.0 1568.2 View list
14 107059584 Molusi, K (Katlego) 2 0.5 0 1 1 25.0 1540.8 -212.5 1328.3 View list
15 103007373 Dinham, J (James) 2 0.0 0 0 2 0.0 1617.9 -425.0 1192.9 View list
16 110086011 Felix, R (Raphael) 2 0.0 0 0 2 0.0 1593.5 -425.0 1168.5 View list
17 194076242 Mavuso, GT (Godfrey) 2 0.0 0 0 2 0.0 1587.7 -425.0 1162.7 View list
18 101050584 Mazibuko, K (Khanya) 2 0.0 0 0 2 0.0 1585.4 -425.0 1160.4 View list
19 194026329 Mwale, J (Joseph) 2 0.0 0 0 2 0.0 1567.8 -425.0 1142.8 View list
20 184027327 Nene, TH (Themba) 2 0.0 0 0 2 0.0 1599.0 -425.0 1174.0 View list