PLAYER PAGE
Jackie Ngubeni
162027530Dr Kenneth Kaunda (NWP)Personal
Main rating
| Rating | 1621 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1669.8 (2025-09-30) |
| Min/Max +/- allowed | 85 |
| Rating Change () | |
| Games | 24 |
| Score | 10.5 |
| We | 12.38 |
| SWe | -1.75 |
| Temp +/- | -49.1 |
| Penalties | 0 |
| Weight perform | 1432.3 |
| Final +/- | -49.1 |
| New Rating () | |
| Rating | 1571.9 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1669.8 (2025-09-30) |
| Min/Max +/- allowed | 84.9 |
Standard rating
| Rating | 1628.5 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1666 (2025-09-30) |
| Min/Max +/- allowed | 85.4 |
| Rating Change () | |
| Games | 10 |
| Score | 2.5 |
| We | 4.35 |
| SWe | -1.85 |
| Temp +/- | -51.7 |
| Penalties | 0 |
| Weight perform | 1521 |
| Final +/- | -51.7 |
| New Rating () | |
| Rating | 1576.8 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1666 (2025-09-30) |
| Min/Max +/- allowed | 85.4 |
Rapid rating
| Rating | 1533 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1665.3 (2018-02-01) |
| Min/Max +/- allowed | 85.5 |
| Rating Change () | |
| Games | 6 |
| Score | 3 |
| We | 4.13 |
| SWe | -1.13 |
| Temp +/- | -31.5 |
| Penalties | 0 |
| Weight perform | 1499.1 |
| Final +/- | -31.5 |
| New Rating () | |
| Rating | 1501.5 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1665.3 (2018-02-01) |
| Min/Max +/- allowed | 85.5 |
Blitz rating
| Rating | 1537.3 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1665.3 (2018-02-01) |
| Min/Max +/- allowed | 85.5 |
| Rating Change () | |
| Games | 8 |
| Score | 5 |
| We | 4.33 |
| SWe | 0.67 |
| Temp +/- | 18.8 |
| Penalties | 0 |
| Weight perform | 1588.9 |
| Final +/- | +51.5 |
| New Rating () | |
| Rating | 1588.9 |
| K-factor | 28 |
| Floor | 1165.3 |
| Highest | 1665.3 (2018-02-01) |
| Min/Max +/- allowed | 85.5 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Randburg Club Championships Rapid 2026 | Rapid | 2026-09-08 | 2026-10-06 | Johannesburg Metro (GJM) | 6 | 1621 | 6 | 3 | 1443.4 | -11.2 | Details |
| 2 | Randburg Club Championships Blitz 2026 | Blitz | 2026-09-22 | 2026-09-22 | Johannesburg Metro (GJM) | 8 | 1621 | 8 | 5 | 1691.1 | 4.2 | Details |
| 3 | Chess Power House Heritage Day Open 2026 (A) | Standard | 2026-09-24 | 2026-09-24 | Johannesburg Metro (GJM) | 5 | 1621 | 5 | 1 | 1416.9 | -28.9 | Details |
| 4 | Dr KK Chess Glenly 2026 (A) | Standard | 2026-09-05 | 2026-09-05 | Dr Kenneth Kaunda (NWP) | 5 | 1621 | 5 | 1.5 | 1533.2 | -13.1 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Neil Savage Memorial Randburg Chess Club Champs 2026 | Standard | 2026-07-28 | 2026-09-15 | Johannesburg Metro (GJM) | 8 | 1647.3 | 8 | 3.5 | 1526.7 | -26.3 | Details |
| 2 | Tshimega Rapid Chess Tournament 2026 (B) | Rapid | 2026-08-15 | 2026-08-15 | Dr Kenneth Kaunda (NWP) | 7 | 1647.3 | 7 | 5 | 1547.7 | -12.4 | Details |
| 3 | Randburg Chess Club Winter Rapid 2026 | Rapid | 2026-07-14 | 2026-07-21 | Johannesburg Metro (GJM) | 6 | 1579.7 | 6 | 4 | 1741 | 17.3 | Details |
| 4 | Knights Watch Winter Classic 2026 (B) | Standard | 2026-07-04 | 2026-07-05 | Johannesburg Metro (GJM) | 5 | 1579.7 | 5 | 3 | 1894.9 | 49.4 | Details |
| 5 | Randburg Chess Club WInter Blitz 2026 | Blitz | 2026-07-07 | 2026-07-07 | Johannesburg Metro (GJM) | 8 | 1579.7 | 8 | 3 | 1500.5 | -5 | Details |
| 6 | 4th Khelo India - LCA Chess Tournament 2026 (A+B) | Standard | 2026-07-11 | 2026-07-12 | Johannesburg Metro (GJM) | 5 | 1579.7 | 5 | 4.5 | 1745.4 | 21.9 | Details |
| 7 | 4th Khelo India - LCA Chess Tournament 2026 (Blitz) | Blitz | 2026-07-11 | 2026-07-11 | Johannesburg Metro (GJM) | 7 | 1579.7 | 6 | 3 | 1520.1 | -3.7 | Details |
| 8 | JMC Trinityhouse Randpark Ridge 2026 (B) | Standard | 2026-06-27 | 2026-06-27 | Johannesburg Metro (GJM) | 5 | 1572.7 | 4 | 2 | 1500.5 | -7.8 | Details |
| 9 | Randburg Autumn Swiss 2026 | Standard | 2026-05-05 | 2026-06-23 | Johannesburg Metro (GJM) | 8 | 1572.7 | 8 | 5 | 1632.1 | 14.8 | Details |
| 10 | Chess Power House May Rapid 2026 (A) | Rapid | 2026-05-24 | 2026-05-24 | Johannesburg Metro (GJM) | 5 | 1586.8 | 4 | 1 | 1390.2 | -14.1 | Details |
| 11 | West Rand goes to Monnas 2026 (Open) | Standard | 2026-05-02 | 2026-05-02 | West Rand (GWR) | 5 | 1586.8 | 0 | 0 | 500 | 0 | Details |
| 12 | Chess Power House Freedom Day Open 2026 (A) | Standard | 2026-04-27 | 2026-04-27 | Ekurhuleni (GE) | 5 | 1559.2 | 5 | 2 | 1540.7 | -3.6 | Details |
| 13 | Randburg Autumn Rapid 2026 | Rapid | 2026-04-14 | 2026-04-21 | Johannesburg Metro (GJM) | 6 | 1559.2 | 6 | 3 | 1582.4 | 0.7 | Details |
| 14 | 3rd KHELO INDIA - LCA Chess Tournament 2026 (A) | Standard | 2026-04-18 | 2026-04-19 | Johannesburg Metro (GJM) | 5 | 1559.2 | 5 | 3 | 1560.6 | -0.7 | Details |
| 15 | FIDE in the West 2026 (Open) | Standard | 2026-04-11 | 2026-04-11 | West Rand (GWR) | 5 | 1559.2 | 5 | 2 | 1384.7 | -24.7 | Details |
| 16 | Randburg Autumn Blitz 2026 | Blitz | 2026-04-07 | 2026-04-07 | Johannesburg Metro (GJM) | 7 | 1559.2 | 7 | 4 | 1865.4 | 14.8 | Details |
| 17 | Randburg NY Swiss 2026 | Standard | 2026-02-10 | 2026-03-31 | Johannesburg Metro (GJM) | 8 | 1559.2 | 7 | 4.5 | 1754.7 | 41 | Details |
| 18 | Chess Power House Boksburg Open 2026 (A) | Standard | 2026-03-14 | 2026-03-14 | Ekurhuleni (GE) | 5 | 1565.3 | 5 | 3 | 1561.7 | 0.6 | Details |
| 19 | 3rd Knight Riders Juniors Open Chess Tournament 2026 (A) | Standard | 2026-03-08 | 2026-03-08 | Johannesburg Metro (GJM) | 5 | 1565.3 | 3 | 1 | 1471.8 | -6.7 | Details |
| 20 | Dr KK Chess - Curro 2026 (A) | Standard | 2026-02-07 | 2026-02-07 | Dr Kenneth Kaunda (NWP) | 5 | 1570.9 | 5 | 1.5 | 1388.5 | -18.6 | Details |
| 21 | Randburg Chess Club New Year Rapid 2026 | Rapid | 2026-01-27 | 2026-02-03 | Johannesburg Metro (GJM) | 6 | 1570.9 | 3 | 1 | 1593.2 | -0.2 | Details |
| 22 | Randburg Chess Club New Year Blitz 2026 | Blitz | 2026-01-20 | 2026-01-20 | Johannesburg Metro (GJM) | 7 | 1568.7 | 7 | 5 | 1809.8 | 3 | Details |
| 23 | Matlosana Chess Academy 2025 (Open ) | Standard | 2025-12-16 | 2025-12-16 | Dr Kenneth Kaunda (NWP) | 5 | 1608.5 | 4 | 2 | 1228.8 | -29.4 | Details |
| 24 | Gauteng Inter-Region at Emerald Resort 2025 (Adults+Seniors) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1608.5 | 4 | 1 | 1603.2 | -6.4 | Details |
| 25 | DR KK Chess Volkies 2025 (Open) | Standard | 2025-10-18 | 2025-10-18 | Dr Kenneth Kaunda (NWP) | 5 | 1669.8 | 5 | 2.5 | 1722.5 | 5.8 | Details |
| 26 | Randburg Chess Club Rapid Championship 2025 | Rapid | 2025-09-30 | 2025-10-07 | Johannesburg Metro (GJM) | 6 | 1669.8 | 6 | 3 | 1706.7 | 1.6 | Details |
| 27 | Bojanala's FIDE On The Orion Express 2025 (Queens) | Classical | 2025-10-03 | 2025-10-05 | Bojanala Platina (NBR) | 6 | 1669.8 | 5 | 1 | 1416.1 | -30.6 | Details |
| 28 | Khelo India - Lonehill Chess Academy - 2nd Annual Chess Tournament 2025 (A) | Standard | 2025-09-27 | 2025-09-27 | Johannesburg Metro (GJM) | 5 | 1669.8 | 5 | 2.5 | 1627.2 | -4.8 | Details |
| 29 | Dr KK Regional Trials 2025 (Open) | Standard | 2025-09-06 | 2025-09-06 | Dr Kenneth Kaunda (NWP) | 5 | 1572.2 | 5 | 4 | 1878.8 | 29.2 | Details |
| 30 | Randburg Winter Swiss 2025 | Standard | 2025-07-29 | 2025-09-16 | Johannesburg Metro (GJM) | 8 | 1572.2 | 8 | 4 | 1550.8 | -5.6 | Details |
| 31 | Randburg Spring Blitz 2025 | Blitz | 2025-09-23 | 2025-09-23 | Johannesburg Metro (GJM) | 7 | 1572.2 | 7 | 3 | 1438.3 | -5.2 | Details |
| 32 | Chess Power House Spring Rapid 2025 (A) | Rapid | 2025-09-21 | 2025-09-21 | Ekurhuleni (GE) | 5 | 1572.2 | 5 | 3 | 1697 | 6.5 | Details |
| 33 | Tshwane Chess Club Clash 2025 (Open) | Standard | 2025-09-13 | 2025-09-13 | Tshwane (GTP) | 5 | 1572.2 | 5 | 4 | 1733.6 | 15.1 | Details |
| 34 | Ashton John 2025 (Open) | Standard | 2025-08-23 | 2025-08-23 | Dr Kenneth Kaunda (NWP) | 5 | 1572.2 | 5 | 3 | 1598.1 | 3.3 | Details |
| 35 | JMC Closed 2025 (B) | Standard | 2025-08-09 | 2025-08-10 | Johannesburg Metro (GJM) | 5 | 1539.4 | 5 | 4 | 1712.1 | 18.4 | Details |
| 36 | Knight Shift Open Chess Tournament 2025 (Open) | Standard | 2025-08-02 | 2025-08-02 | Dr Kenneth Kaunda (NWP) | 5 | 1539.4 | 4 | 2 | 1615.5 | 5 | Details |
| 37 | Randburg Chess Club Winter Rapid 2025 | Rapid | 2025-07-15 | 2025-07-22 | Johannesburg Metro (GJM) | 6 | 1558.4 | 6 | 3 | 1464.8 | -7.1 | Details |
| 38 | South African Open 2025 (B) | Classical | 2025-06-28 | 2025-07-05 | Johannesburg Metro (GJM) | 11 | 1558.4 | 11 | 5.5 | 1461.3 | -25.8 | Details |
| 39 | Neil Savage Memorial Randburg Club Champs 2025 | Standard | 2025-05-06 | 2025-06-24 | Johannesburg Metro (GJM) | 8 | 1548.1 | 7 | 4.5 | 1600.2 | 7.3 | Details |
| 40 | Najdorf Movement 2025 (B) | Standard | 2025-06-14 | 2025-06-16 | Bojanala Platina (NBR) | 7 | 1548.1 | 0 | 0 | 0 | 0 | Details |
| 41 | Mzansi Africa Classic 2025 (Advanced) | Standard | 2025-05-17 | 2025-05-17 | Johannesburg Metro (GJM) | 5 | 1579.2 | 5 | 2 | 1278 | -28.6 | Details |
| 42 | JMC Crawford Sandton 2025 (B) | Standard | 2025-05-10 | 2025-05-10 | Johannesburg Metro (GJM) | 5 | 1579.2 | 5 | 4 | 1773.8 | 18.4 | Details |
| 43 | CPH May 2025 (B) | Standard | 2025-05-03 | 2025-05-03 | Johannesburg Metro (GJM) | 5 | 1579.2 | 5 | 3 | 1441.2 | -12.1 | Details |
| 44 | CURRO Tournament 2025 (Open) | Standard | 2025-04-12 | 2025-04-12 | Dr Kenneth Kaunda (NWP) | 5 | 1634.9 | 5 | 4 | 1690.7 | 7.1 | Details |
| 45 | Randburg Autumn Rapid 2025 | Rapid | 2025-04-15 | 2025-04-22 | Johannesburg Metro (GJM) | 7 | 1634.9 | 7 | 4 | 1592.2 | -4.1 | Details |
| 46 | Randburg Chess Club Autumn Blitz | Blitz | 2025-04-08 | 2025-04-08 | Johannesburg Metro (GJM) | 7 | 1634.9 | 7 | 4 | 1432.8 | -7.2 | Details |
| 47 | Randburg Chess Club New Year Swiss 2025 | Standard | 2025-02-11 | 2025-04-01 | Johannesburg Metro (GJM) | 8 | 1634.9 | 7 | 3 | 1393.1 | -35.5 | Details |
| 48 | Chess Power House March Open 2025 (B) | Standard | 2025-03-22 | 2025-03-22 | Johannesburg Metro (GJM) | 5 | 1634.1 | 4 | 3 | 1483.4 | -10.6 | Details |
| 49 | Dr Kenneth Kaunda La Hoff PS 2025 (Open) | Standard | 2025-03-01 | 2025-03-01 | Dr Kenneth Kaunda (NWP) | 5 | 1634.1 | 5 | 4.5 | 1677.9 | 11.1 | Details |
| 50 | 2025 KSNG Open (B) | Standard | 2025-02-22 | 2025-02-22 | Tshwane (GTP) | 5 | 1542.5 | 5 | 3 | 1666.9 | 11.5 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 143 |
| Wins | 72 |
| Draws | 5 |
| Losses | 66 |
| White | 75 |
| Black | 68 |
| White wins | 38 |
| Black wins | 34 |
| Score | 74.5 |
| Percent | 52.1 |
| Dp | 17.8 |
| AOR | 1578.4 |
| Performance | 1596.2 |
Game statistics (History)
| Games | 609 |
| Wins | 315 |
| Draws | 18 |
| Losses | 276 |
| White | 314 |
| Black | 295 |
| White wins | 173 |
| Black wins | 142 |
| Score | 324 |
| Percent | 53.2 |
| Dp | 27.2 |
| AOR | 1534 |
| Performance | 1561.3 |
Rankings (Main)
| National | |
| Overall | 955 |
| Gender | 886 |
| Age group | 75 |
| Gender/Age | 75 |
| Provincial | |
| Overall | 74 |
| Gender | 68 |
| Age group | 4 |
| Gender/Age | 4 |
| Regional | |
| Overall | 12 |
| Gender | 11 |
| Age group | 3 |
| Gender/Age | 3 |
Rankings (Standard)
| National | |
| Overall | 826 |
| Gender | 769 |
| Age group | 67 |
| Gender/Age | 67 |
| Provincial | |
| Overall | 67 |
| Gender | 63 |
| Age group | 4 |
| Gender/Age | 4 |
| Regional | |
| Overall | 12 |
| Gender | 11 |
| Age group | 3 |
| Gender/Age | 3 |
Rankings (Rapid)
| National | |
| Overall | 332 |
| Gender | 307 |
| Age group | 32 |
| Gender/Age | 32 |
| Provincial | |
| Overall | 11 |
| Gender | 11 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 1 |
| Gender | 1 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Blitz)
| National | |
| Overall | 142 |
| Gender | 139 |
| Age group | 21 |
| Gender/Age | 21 |
| Provincial | |
| Overall | 12 |
| Gender | 12 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 1 |
| Gender | 1 |
| Age group | 1 |
| Gender/Age | 1 |
Performance ( )
| Games | 6 |
| Score | 3 |
| Percent | 50 |
| Aor | 1443.4 |
| Dp | 0 |
| Prat | 1443.4 |
Performance ()
| Games | 143 |
| Score | 74.5 |
| Percent | 52.1 |
| Aor | 1578.4 |
| Dp | 17.8 |
| Prat | 1596.2 |
Performance (12 months)
| Games | 151 |
| Score | 77.5 |
| Percent | 51.3 |
| Aor | 1575.4 |
| Dp | 11.3 |
| Prat | 1586.7 |
Performance (History)
| Games | 609 |
| Score | 324 |
| Percent | 53.2 |
| Aor | 1534 |
| Dp | 27.2 |
| Prat | 1561.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Tak, R (Rannveer) | 8 | 1 | 7 | Randburg Mid-Year Themed Rapid 2023 | Randburg Chess Club Winter Rapid 2026 | Details |
| Overall | 2 | Metcalfe, AR (Allister Richard) | 8 | 5 | 3 | Randburg New Year Rapid 2024 | Neil Savage Memorial Randburg Chess Club Champs 2026 | Details |
| Overall | 3 | Hodgson, TF (Timothy Fish) | 8 | 4 | 4 | Randburg Autumn Rapid 2024 | Neil Savage Memorial Randburg Chess Club Champs 2026 | Details |
| Overall | 4 | Tracey, T (Terence) | 7 | 3 | 4 | Randburg Club Championship Rapid 2023 | Randburg Autumn Rapid 2025 | Details |
| Overall | 5 | Jolliffe, SR (Shaun) | 7 | 4 | 3 | Randburg New Year Rapid 2024 | Randburg Chess Club Winter Rapid 2026 | Details |
| Standard | 1 | Mendelsohn, DC (David Charles) | 5 | 4 | 1 | Randburg Chess Club Winter Swiss 2024 | Neil Savage Memorial Randburg Chess Club Champs 2026 | Details |
| Standard | 2 | Kruger, I (Ivan) | 5 | 2 | 3 | JMC Crawford Sandton 2025 (B) | Randburg Winter Swiss 2025 | Details |
| Standard | 3 | Choeu, K (Kagisho) | 4 | 2 | 2 | DR KKD Saamtrek 2024 (Open) | DR KK Chess Volkies 2025 (Open) | Details |
| Standard | 4 | Metcalfe, AR (Allister Richard) | 4 | 1 | 3 | Randburg Chess Club Championship 2024 | Neil Savage Memorial Randburg Chess Club Champs 2026 | Details |
| Standard | 5 | Van Der Walt, J (Jacobus Harm) | 4 | 0 | 4 | DR KKD Mooirivier Trials 2024 (Open) | CURRO Tournament 2025 (Open) | Details |
| Rapid | 1 | Tak, R (Rannveer) | 4 | 1 | 3 | Randburg Mid-Year Themed Rapid 2023 | Randburg Chess Club Winter Rapid 2026 | Details |
| Rapid | 2 | Sparks, SJW (Stephen) | 4 | 2 | 2 | Randburg Club Championship Rapid 2023 | Randburg Chess Club Winter Rapid 2026 | Details |
| Rapid | 3 | Jolliffe, SR (Shaun) | 3 | 2 | 1 | Randburg New Year Rapid 2024 | Randburg Chess Club Winter Rapid 2026 | Details |
| Rapid | 4 | Tracey, T (Terence) | 3 | 2 | 1 | Randburg Club Championship Rapid 2023 | Randburg Autumn Rapid 2025 | Details |
| Rapid | 5 | Hodgson, TF (Timothy Fish) | 3 | 1 | 2 | Randburg Autumn Rapid 2024 | Randburg Chess Club Winter Rapid 2025 | Details |
| Blitz | 1 | Mazibuko, K (Khanya) | 4 | 2 | 2 | Randburg Chess Club New Year Blitz 2026 | Randburg Chess Club WInter Blitz 2026 | Details |
| Blitz | 2 | Ahmid, K (Kaleem) | 4 | 2 | 2 | Randburg Chess Club Autumn Blitz | Randburg Chess Club WInter Blitz 2026 | Details |
| Blitz | 3 | Sinha, A (Anurag) | 3 | 1 | 2 | Randburg New Year Blitz 2025 | Randburg Chess Club WInter Blitz 2026 | Details |
| Blitz | 4 | Ramlutchman, K (Kyle) | 2 | 0 | 2 | Randburg Spring Blitz 2025 | 4th Khelo India - LCA Chess Tournament 2026 (Blitz) | Details |
| Blitz | 5 | Jolliffe, SR (Shaun) | 2 | 2 | 0 | Randburg New Year Blitz 2025 | Randburg Chess Club WInter Blitz 2026 | Details |