PLAYER PAGE
Christopher David Yoko
1030144946Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1691.5 |
| K-factor | 28 |
| Floor | 1268.7 |
| Highest | 1805.2 (2026-01-01) |
| Min/Max +/- allowed | 70 |
| Rating Change () | |
| Games | 4 |
| Score | 1 |
| We | 1.08 |
| SWe | -0.07 |
| Temp +/- | -2 |
| Penalties | 0 |
| Weight perform | 1646.1 |
| Final +/- | -2 |
| New Rating () | |
| Rating | 1689.5 |
| K-factor | 28 |
| Floor | 1268.7 |
| Highest | 1805.2 (2026-01-01) |
| Min/Max +/- allowed | 70 |
Standard rating
| Rating | 1690.8 |
| K-factor | 24 |
| Floor | 1307.8 |
| Highest | 1813.9 (2025-11-01) |
| Min/Max +/- allowed | 69.1 |
| Rating Change () | |
| Games | 4 |
| Score | 1 |
| We | 1.15 |
| SWe | -0.15 |
| Temp +/- | -3.7 |
| Penalties | 0 |
| Weight perform | 1627 |
| Final +/- | -3.7 |
| New Rating () | |
| Rating | 1687.1 |
| K-factor | 24 |
| Floor | 1307.8 |
| Highest | 1813.9 (2025-11-01) |
| Min/Max +/- allowed | 69.1 |
Rapid rating
| Rating | 1464.9 |
| K-factor | 32 |
| Floor | 964.9 |
| Highest | 1464.9 (2026-06-01) |
| Min/Max +/- allowed | 113.7 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1464.9 |
| K-factor | 32 |
| Floor | 964.9 |
| Highest | 1464.9 (2026-06-01) |
| Min/Max +/- allowed | 113.7 |
Blitz rating
| Rating | 1380 |
| K-factor | 32 |
| Floor | 926.3 |
| Highest | 1450.3 (2024-08-01) |
| Min/Max +/- allowed | 116.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1324.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1380 |
| K-factor | 32 |
| Floor | 926.3 |
| Highest | 1450.3 (2024-08-01) |
| Min/Max +/- allowed | 116.1 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Knights Watch Winter Classic 2026 (B) | Standard | 2026-07-04 | 2026-07-05 | Johannesburg Metro (GJM) | 5 | 1691.5 | 4 | 1 | 1677.1 | -2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Wynie Robbertse Chess Tournament 2026 (A) | Standard | 2026-06-27 | 2026-06-27 | Tshwane (GTP) | 5 | 1708.2 | 5 | 3.5 | 2003.8 | 41.2 | Details |
| 2 | 2026 Anton Van Wouw Open (A) | Standard | 2026-06-20 | 2026-06-20 | Tshwane (GTP) | 5 | 1708.2 | 4 | 0 | 1178 | -57.9 | Details |
| 3 | 2026 Centurion Mall Open Chess Tournament (A) | Standard | 2026-05-16 | 2026-05-17 | Tshwane (GTP) | 5 | 1703.9 | 5 | 2 | 1642.4 | -10.6 | Details |
| 4 | JMC Crawford Sandton Rapid 2026 (Open) | Rapid | 2026-05-09 | 2026-05-09 | Johannesburg Metro (GJM) | 5 | 1703.9 | 5 | 3.5 | 1816.7 | 14.9 | Details |
| 5 | 2026 PBHS Open (A) | Standard | 2026-04-25 | 2026-04-25 | Tshwane (GTP) | 5 | 1728.3 | 4 | 0 | 1438.5 | -32.4 | Details |
| 6 | 3rd KHELO INDIA - LCA Chess Tournament 2026 (Prestige) | Standard | 2026-04-18 | 2026-04-19 | Johannesburg Metro (GJM) | 5 | 1728.3 | 5 | 2 | 1781.4 | 8 | Details |
| 7 | Randburg Chess Club New Year Rapid 2026 | Rapid | 2026-01-27 | 2026-02-03 | Johannesburg Metro (GJM) | 6 | 1785.9 | 3 | 2 | 1743.2 | -1.3 | Details |
| 8 | JP Wagner Cup 2026 (A) | Standard | 2026-01-31 | 2026-01-31 | Ekurhuleni (GE) | 5 | 1785.9 | 4 | 2 | 1553.6 | -17.8 | Details |
| 9 | MCA Tshwane Welcome 2026 (A) | Standard | 2026-01-24 | 2026-01-24 | Tshwane (GTP) | 5 | 1785.9 | 5 | 1.5 | 1691.9 | -9.8 | Details |
| 10 | USSA Chess Championships 2025 (Open) | Classical | 2025-12-01 | 2025-12-05 | Johannesburg Metro (GJM) | 9 | 1777.8 | 9 | 6.5 | 1705.8 | -13.8 | Details |
| 11 | Chess Power House Dec Rapid 2025 (A) | Rapid | 2025-12-16 | 2025-12-16 | Johannesburg Metro (GJM) | 5 | 1777.8 | 5 | 4.5 | 2073.7 | 21.5 | Details |
| 12 | Gauteng Inter-Region at Emerald Resort 2025 (Adults+Seniors) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1777.8 | 5 | 2.5 | 1733.2 | -4.1 | Details |
| 13 | 2025 Laerskool Doringkloof Primary Open Chess Tournament (A) | Standard | 2025-10-25 | 2025-10-25 | Tshwane (GTP) | 5 | 1787.5 | 5 | 2.5 | 1863.5 | 6.6 | Details |
| 14 | Checkmate for Change Rapid 11 Oct 2025 (B) | Rapid | 2025-10-11 | 2025-10-11 | Sedibeng (GSV) | 5 | 1787.5 | 5 | 5 | 1839.7 | 3.7 | Details |
| 15 | Tshwane Chess Club Clash 2025 (Open) | Standard | 2025-09-13 | 2025-09-13 | Tshwane (GTP) | 5 | 1713.4 | 5 | 3 | 1772.9 | 5.1 | Details |
| 16 | 2025 Alekhine Open (A) | Standard | 2025-09-06 | 2025-09-07 | Tshwane (GTP) | 5 | 1713.4 | 5 | 3 | 1893.4 | 20.5 | Details |
| 17 | Chess Power House Aug Open 2025 (A) | Standard | 2025-08-16 | 2025-08-16 | Ekurhuleni (GE) | 5 | 1698.5 | 5 | 3.5 | 1814.4 | 10.6 | Details |
| 18 | 2025 Menlo Open (A) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1753.3 | 5 | 3 | 1837.5 | 7.5 | Details |
| 19 | South African Open 2025 (B) | Classical | 2025-06-28 | 2025-07-05 | Johannesburg Metro (GJM) | 11 | 1753.3 | 11 | 5.5 | 1591.5 | -38.4 | Details |
| 20 | South African Open 2025 (Blitz) | Blitz | 2025-07-02 | 2025-07-02 | Johannesburg Metro (GJM) | 9 | 1753.3 | 9 | 3.5 | 1527.2 | -8.2 | Details |
| 21 | 2025 Mid Gauteng Open Chess Tournament (A) | Standard | 2025-04-12 | 2025-04-12 | Tshwane (GTP) | 5 | 1635.5 | 5 | 3.5 | 2016.3 | 37.7 | Details |
| 22 | AHS Open Chess Tournament 2025 (B) | Standard | 2025-03-01 | 2025-03-01 | Tshwane (GTP) | 5 | 1587.8 | 5 | 4 | 1806 | 22.1 | Details |
| 23 | USSA Chess Championships 2024 (Open) | Classical | 2024-11-29 | 2024-12-03 | Tshwane (GTP) | 9 | 1639.8 | 9 | 4.5 | 1346.1 | -53.8 | Details |
| 24 | USSA Chess Championships 2024 (Blitz) | Blitz | 2024-12-01 | 2024-12-01 | Tshwane (GTP) | 9 | 1639.8 | 9 | 5 | 1542.5 | -3.5 | Details |
| 25 | Gauteng Inter-Region at UJ 2024 (Adult+Senior) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1639.8 | 5 | 2.5 | 1885 | 20.1 | Details |
| 26 | Laerskool Doringkloof Primary Open Chess Tournament 2024 (A) | Standard | 2024-10-19 | 2024-10-19 | Tshwane (GTP) | 5 | 1530.7 | 5 | 3 | 1925.6 | 32 | Details |
| 27 | 2024 Tuks Open Chess Tournament (A) | Standard | 2024-09-28 | 2024-09-28 | Tshwane (GTP) | 5 | 1551.2 | 4 | 0.5 | 1380.8 | -13.3 | Details |
| 28 | Mzansi Spring Open 2024 (Advanced) | Standard | 2024-09-07 | 2024-09-07 | Johannesburg Metro (GJM) | 5 | 1551.2 | 5 | 3.5 | 1616.4 | 5.6 | Details |
| 29 | JCC Khelo India 1st Annual Chess Tournament 2024 (B) | Standard | 2024-08-31 | 2024-08-31 | Johannesburg Metro (GJM) | 5 | 1551.2 | 5 | 3 | 1503.8 | -5.1 | Details |
| 30 | 2024 Jacaranda Round Robin Open Chess Tournament (C) | Standard | 2024-08-17 | 2024-08-17 | Tshwane (GTP) | 5 | 1469.2 | 5 | 5 | 1900.6 | 42.7 | Details |
| 31 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 3 | Blitz | 2024-07-21 | 2024-07-21 | Tshwane (GTP) | 9 | 1469.2 | 9 | 5.5 | 1735.6 | 8.6 | Details |
| 32 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 | Blitz | 2024-05-26 | 2024-05-26 | Tshwane (GTP) | 9 | 1463.3 | 9 | 5 | 1559.5 | 3.7 | Details |
| 33 | Gauteng Cup 2nd Edition 2024 | Standard | 2024-05-18 | 2024-05-18 | Johannesburg Metro (GJM) | 5 | 1394.5 | 5 | 2 | 1335.3 | -8.1 | Details |
| 34 | 2024 Mid Gauteng Open Chess Tournament (B) | Standard | 2024-05-02 | 2024-05-02 | Tshwane (GTP) | 5 | 1394.5 | 5 | 4 | 1525.7 | 13.6 | Details |
| 35 | 2024 Silver Lakes Open Chess Tournament (D1) | Standard | 2024-04-21 | 2024-04-21 | Tshwane (GTP) | 5 | 1282.7 | 5 | 5 | 1769.9 | 48.3 | Details |
| 36 | Wanderers Blitz Tournament 2024 | Blitz | 2024-03-23 | 2024-03-23 | Johannesburg Metro (GJM) | 9 | 1250 | 9 | 5 | 1692.4 | 17.9 | Details |
| 37 | 2023 Tuks Open Chess Tournament (C) | Standard | 2023-10-07 | 2023-10-07 | Tshwane (GTP) | 5 | 1193.2 | 5 | 4 | 1509.3 | 31.5 | Details |
| 38 | UJ Fundraising Tournament 2022 (B) | Standard | 2022-08-13 | 2022-08-13 | Johannesburg Metro (GJM) | 5 | 1205 | 5 | 2.5 | 1108.8 | -6.4 | Details |
| 39 | Chessheroes Bowls Club Zoo Lake Challenge 2022 | Blitz | 2022-07-02 | 2022-07-02 | Johannesburg Metro (GJM) | 7 | 1200 | 6 | 2 | 1308.6 | 2.5 | Details |
Game statistics ( )
| Games | 4 |
| Wins | 1 |
| Draws | 0 |
| Losses | 3 |
| White | 2 |
| Black | 2 |
| White wins | 1 |
| Black wins | 0 |
| Score | 1 |
| Percent | 25 |
| Dp | -212.5 |
| AOR | 1889.6 |
| Performance | 1677.1 |
Game statistics ()
| Games | 44 |
| Wins | 16 |
| Draws | 3 |
| Losses | 25 |
| White | 22 |
| Black | 22 |
| White wins | 9 |
| Black wins | 7 |
| Score | 17.5 |
| Percent | 39.8 |
| Dp | -86.9 |
| AOR | 1752.8 |
| Performance | 1665.9 |
Game statistics (History)
| Games | 228 |
| Wins | 121 |
| Draws | 17 |
| Losses | 90 |
| White | 111 |
| Black | 117 |
| White wins | 54 |
| Black wins | 67 |
| Score | 129.5 |
| Percent | 56.8 |
| Dp | 57.8 |
| AOR | 1599.3 |
| Performance | 1657.1 |
Rankings (Main)
| National | |
| Overall | 605 |
| Gender | 568 |
| Age group | 333 |
| Gender/Age | 317 |
| Provincial | |
| Overall | 215 |
| Gender | 201 |
| Age group | 125 |
| Gender/Age | 120 |
| Regional | |
| Overall | 88 |
| Gender | 80 |
| Age group | 48 |
| Gender/Age | 46 |
Rankings (Standard)
| National | |
| Overall | 570 |
| Gender | 535 |
| Age group | 306 |
| Gender/Age | 292 |
| Provincial | |
| Overall | 209 |
| Gender | 196 |
| Age group | 120 |
| Gender/Age | 116 |
| Regional | |
| Overall | 81 |
| Gender | 74 |
| Age group | 42 |
| Gender/Age | 41 |
Rankings (Rapid)
| National | |
| Overall | 530 |
| Gender | 483 |
| Age group | 162 |
| Gender/Age | 156 |
| Provincial | |
| Overall | 103 |
| Gender | 91 |
| Age group | 44 |
| Gender/Age | 44 |
| Regional | |
| Overall | 53 |
| Gender | 49 |
| Age group | 28 |
| Gender/Age | 28 |
Rankings (Blitz)
| National | |
| Overall | 235 |
| Gender | 227 |
| Age group | 142 |
| Gender/Age | 139 |
| Provincial | |
| Overall | 80 |
| Gender | 75 |
| Age group | 43 |
| Gender/Age | 43 |
| Regional | |
| Overall | 43 |
| Gender | 38 |
| Age group | 19 |
| Gender/Age | 19 |
Performance ( )
| Games | 4 |
| Score | 1 |
| Percent | 25 |
| Aor | 1889.6 |
| Dp | -212.5 |
| Prat | 1677.1 |
Performance ()
| Games | 44 |
| Score | 17.5 |
| Percent | 39.8 |
| Aor | 1752.8 |
| Dp | -86.9 |
| Prat | 1665.9 |
Performance (12 months)
| Games | 88 |
| Score | 48 |
| Percent | 54.5 |
| Aor | 1706.9 |
| Dp | 38.6 |
| Prat | 1745.5 |
Performance (History)
| Games | 228 |
| Score | 129.5 |
| Percent | 56.8 |
| Aor | 1599.3 |
| Dp | 57.8 |
| Prat | 1657.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Pasaribu, M (Matthew) | 4 | 3 | 1 | 2024 Tuks Open Chess Tournament (A) | Wynie Robbertse Chess Tournament 2026 (A) | Details |
| Overall | 2 | Jacobs, CN (Calvin Nicholas) | 4 | 3 | 1 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 | 2025 Menlo Open (A) | Details |
| Overall | 3 | Modisaotsile, B (Botlhale) | 3 | 2 | 1 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 | Chess Power House Aug Open 2025 (A) | Details |
| Overall | 4 | Pienaar, LA (Amadeus Leonard) | 3 | 0 | 3 | South African Open 2025 (Blitz) | Randburg Chess Club New Year Rapid 2026 | Details |
| Overall | 5 | Egeonu, C (Chigozie) | 3 | 2 | 1 | 2025 Laerskool Doringkloof Primary Open Chess Tournament (A) | 3rd KHELO INDIA - LCA Chess Tournament 2026 (Prestige) | Details |
| Standard | 1 | Egeonu, C (Chigozie) | 3 | 2 | 1 | 2025 Laerskool Doringkloof Primary Open Chess Tournament (A) | 3rd KHELO INDIA - LCA Chess Tournament 2026 (Prestige) | Details |
| Standard | 2 | Pasaribu, M (Matthew) | 3 | 2 | 1 | 2024 Tuks Open Chess Tournament (A) | Wynie Robbertse Chess Tournament 2026 (A) | Details |
| Standard | 3 | Thorulsley, K (Kairaav) | 2 | 2 | 0 | UJ Fundraising Tournament 2022 (B) | Mzansi Spring Open 2024 (Advanced) | Details |
| Standard | 4 | Bernhard, A (Arthur) | 2 | 1 | 1 | 2026 PBHS Open (A) | 2026 Centurion Mall Open Chess Tournament (A) | Details |
| Standard | 5 | Jacobs, CN (Calvin Nicholas) | 2 | 1 | 1 | 2025 Mid Gauteng Open Chess Tournament (A) | 2025 Menlo Open (A) | Details |
| Blitz | 1 | Modisaotsile, B (Botlhale) | 2 | 2 | 0 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 3 | Details |
| Blitz | 2 | Jacobs, CN (Calvin Nicholas) | 2 | 2 | 0 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 1 | 2024 Tshwane Chess FIDE RATED Blitz League Championship 3 | Details |