PLAYER PAGE
Yufei Ji
1180319795Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1238.7 |
| K-factor | 36 |
| Floor | 774 |
| Highest | 1274 (2026-02-28) |
| Min/Max +/- allowed | 149 |
| Rating Change () | |
| Games | 14 |
| Score | 9.5 |
| We | 8.61 |
| SWe | 0.6 |
| Temp +/- | 21.5 |
| Penalties | 0 |
| Weight perform | 1244.9 |
| Final +/- | +21.5 |
| New Rating () | |
| Rating | 1260.2 |
| K-factor | 36 |
| Floor | 774 |
| Highest | 1274 (2026-02-28) |
| Min/Max +/- allowed | 149.2 |
Standard rating
| Rating | 1228.5 |
| K-factor | 36 |
| Floor | 771.1 |
| Highest | 1271.1 (2026-02-28) |
| Min/Max +/- allowed | 149.8 |
| Rating Change () | |
| Games | 4 |
| Score | 2 |
| We | 2.21 |
| SWe | -0.21 |
| Temp +/- | -7.5 |
| Penalties | 0 |
| Weight perform | 1205.7 |
| Final +/- | -7.5 |
| New Rating () | |
| Rating | 1221 |
| K-factor | 36 |
| Floor | 771.1 |
| Highest | 1271.1 (2026-02-28) |
| Min/Max +/- allowed | 149.8 |
Rapid rating
| Rating | 1239.2 |
| K-factor | 36 |
| Floor | 739.2 |
| Highest | 1239.2 (2025-11-30) |
| Min/Max +/- allowed | 156.8 |
| Rating Change () | |
| Games | 10 |
| Score | 7.5 |
| We | 6.63 |
| SWe | 0.87 |
| Temp +/- | 31.2 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | +31.2 |
| New Rating () | |
| Rating | 1270.4 |
| K-factor | 36 |
| Floor | 770.4 |
| Highest | 1270.4 (2026-10-01) |
| Min/Max +/- allowed | 150 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-06-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-06-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Mzansi Spring Flower Rapid 2026 (U10) | Rapid | 2026-09-19 | 2026-09-19 | Johannesburg Metro (GJM) | 5 | 1238.7 | 5 | 4.5 | 1385.8 | 21.1 | Details |
| 2 | Midrand Rapid Chess Tournament 2026 | Rapid | 2026-09-26 | 2026-09-26 | Johannesburg Metro (GJM) | 5 | 1238.7 | 5 | 3 | 1338.2 | -0.6 | Details |
| 3 | Chess Power House Heritage Day Open 2026 (E) | Standard | 2026-09-24 | 2026-09-24 | Johannesburg Metro (GJM) | 5 | 1238.7 | 4 | 2 | 1227.7 | 1 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Midrand Juniors Classical Tournament 2026 (U10) | Standard | 2026-08-29 | 2026-08-29 | Johannesburg Metro (GJM) | 5 | 1238.7 | 5 | 3 | 1255.1 | -1.4 | Details |
| 2 | JMC Closed 2026 (U10) | Standard | 2026-08-01 | 2026-08-01 | Johannesburg Metro (GJM) | 5 | 1238.7 | 5 | 2 | 1165 | -17 | Details |
| 3 | JMC Trinityhouse Randpark Ridge 2026 (U10) | Standard | 2026-06-27 | 2026-06-27 | Johannesburg Metro (GJM) | 5 | 1267.8 | 5 | 2 | 1198.7 | -10.7 | Details |
| 4 | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Standard | 2026-05-10 | 2026-05-10 | Johannesburg Metro (GJM) | 5 | 1260.2 | 5 | 3.5 | 1410.3 | 27.7 | Details |
| 5 | Fifth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Standard | 2026-05-02 | 2026-05-02 | Johannesburg Metro (GJM) | 5 | 1260.2 | 5 | 1 | 1130.2 | -21.8 | Details |
| 6 | 3rd KHELO INDIA - LCA Chess Tournament 2026 (D) | Standard | 2026-04-19 | 2026-04-19 | Johannesburg Metro (GJM) | 5 | 1274 | 5 | 2 | 1202.8 | -13.8 | Details |
| 7 | 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Standard | 2026-02-21 | 2026-02-21 | Johannesburg Metro (GJM) | 5 | 1233 | 5 | 3 | 1390.4 | 15.9 | Details |
| 8 | 2026 JMC Kick off Tournament (U10) | Standard | 2026-02-01 | 2026-02-01 | Johannesburg Metro (GJM) | 5 | 1233 | 5 | 2 | 1296.7 | 3.9 | Details |
| 9 | MCA Year End Rapid 2025 (U8) | Rapid | 2025-11-01 | 2025-11-01 | Johannesburg Metro (GJM) | 7 | 1199.9 | 6 | 4 | 1395.6 | 16.6 | Details |
| 10 | CPH May 2025 (E) | Standard | 2025-05-03 | 2025-05-03 | Johannesburg Metro (GJM) | 5 | 1200 | 5 | 2 | 1133.7 | -5.8 | 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 | 54 |
| Wins | 27 |
| Draws | 2 |
| Losses | 25 |
| White | 27 |
| Black | 27 |
| White wins | 11 |
| Black wins | 16 |
| Score | 28 |
| Percent | 51.9 |
| Dp | 15.7 |
| AOR | 1257.9 |
| Performance | 1273.7 |
Game statistics (History)
| Games | 65 |
| Wins | 33 |
| Draws | 2 |
| Losses | 30 |
| White | 32 |
| Black | 33 |
| White wins | 13 |
| Black wins | 20 |
| Score | 34 |
| Percent | 52.3 |
| Dp | 19.6 |
| AOR | 1254.5 |
| Performance | 1274.1 |
Rankings (Main)
| National | |
| Overall | 9182 |
| Gender | 7340 |
| Age group | 514 |
| Gender/Age | 392 |
| Provincial | |
| Overall | 3184 |
| Gender | 2505 |
| Age group | 184 |
| Gender/Age | 139 |
| Regional | |
| Overall | 730 |
| Gender | 601 |
| Age group | 46 |
| Gender/Age | 33 |
Rankings (Standard)
| National | |
| Overall | 8224 |
| Gender | 6428 |
| Age group | 508 |
| Gender/Age | 369 |
| Provincial | |
| Overall | 2958 |
| Gender | 2279 |
| Age group | 178 |
| Gender/Age | 130 |
| Regional | |
| Overall | 639 |
| Gender | 518 |
| Age group | 46 |
| Gender/Age | 34 |
Rankings (Rapid)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 54 |
| Score | 28 |
| Percent | 51.9 |
| Aor | 1257.9 |
| Dp | 15.7 |
| Prat | 1273.7 |
Performance (12 months)
| Games | 60 |
| Score | 32 |
| Percent | 53.3 |
| Aor | 1257.5 |
| Dp | 28.3 |
| Prat | 1285.8 |
Performance (History)
| Games | 65 |
| Score | 34 |
| Percent | 52.3 |
| Aor | 1254.5 |
| Dp | 19.6 |
| Prat | 1274.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Malemane, A (Atlehang Faith) | 3 | 2 | 1 | 2026 JMC Kick off Tournament (U10) | Midrand Juniors Classical Tournament 2026 (U10) | Details |
| Overall | 2 | Wong, B (Benjamin) | 2 | 2 | 0 | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | JMC Trinityhouse Randpark Ridge 2026 (U10) | Details |
| Overall | 3 | Hsu, E (Emily) | 2 | 2 | 0 | CPH May 2025 (E) | 2026 JMC Kick off Tournament (U10) | Details |
| Overall | 4 | Liu, K (Kaireen) | 2 | 2 | 0 | MCA Year End Rapid 2025 (U8) | JMC Trinityhouse Randpark Ridge 2026 (U10) | Details |
| Overall | 5 | Maduna, A (Asonele) | 2 | 1 | 1 | 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Details |
| Standard | 1 | Malemane, A (Atlehang Faith) | 3 | 2 | 1 | 2026 JMC Kick off Tournament (U10) | Midrand Juniors Classical Tournament 2026 (U10) | Details |
| Standard | 2 | Mkhasibe, N (Njabulo) | 2 | 2 | 0 | Fifth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Details |
| Standard | 3 | Maduna, A (Asonele) | 2 | 1 | 1 | 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | Details |
| Standard | 4 | Wong, B (Benjamin) | 2 | 2 | 0 | Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) | JMC Trinityhouse Randpark Ridge 2026 (U10) | Details |
| Standard | 5 | Hsu, E (Emily) | 2 | 2 | 0 | CPH May 2025 (E) | 2026 JMC Kick off Tournament (U10) | Details |