PLAYER PAGE
Jiayi Xu
1180303499Buffalo City (EBC)Personal
Main rating
| Rating | 1371.2 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1371.2 (2026-03-01) |
| Min/Max +/- allowed | 130 |
| Rating Change () | |
| Games | 7 |
| Score | 3 |
| We | 3.3 |
| SWe | -0.28 |
| Temp +/- | -10 |
| Penalties | 0 |
| Weight perform | 1371.1 |
| Final +/- | -10 |
| New Rating () | |
| Rating | 1361.1 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1371.2 (2026-03-01) |
| Min/Max +/- allowed | 129.9 |
Standard rating
| Rating | 1382.2 |
| K-factor | 36 |
| Floor | 882.2 |
| Highest | 1382.2 (2026-03-01) |
| Min/Max +/- allowed | 127.9 |
| Rating Change () | |
| Games | 7 |
| Score | 3 |
| We | 3.44 |
| SWe | -0.44 |
| Temp +/- | -15.9 |
| Penalties | 0 |
| Weight perform | 1390.7 |
| Final +/- | +8.5 |
| New Rating () | |
| Rating | 1390.7 |
| K-factor | 36 |
| Floor | 890.7 |
| Highest | 1390.7 (2026-04-01) |
| Min/Max +/- allowed | 126.4 |
Rapid rating
| Rating | 1187.3 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-05-01) |
| 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 | 1187.3 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-05-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-05-01) |
| 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 (2024-05-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Eastern Cape Open 2026 (U8-U14 Boys) | Standard | 2026-04-11 | 2026-04-12 | Buffalo City (EBC) | 7 | 1371.2 | 7 | 3 | 1340.5 | -10 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Buffalo City Chess Trials 3 (U10) | Standard | 2026-03-21 | 2026-03-21 | Buffalo City (EBC) | 5 | 1277.3 | 5 | 4 | 1529.5 | 43.1 | Details |
| 2 | Vikings Rapid 2026 (B) | Rapid | 2026-02-21 | 2026-02-21 | Buffalo City (EBC) | 8 | 1277.3 | 8 | 3.5 | 1196.2 | -10.6 | Details |
| 3 | 2026 Buffalo City Chess Trials 2 (U8+U10 Boys) | Standard | 2026-02-28 | 2026-02-28 | Buffalo City | 5 | 1277.3 | 5 | 3 | 1411.7 | 22.3 | Details |
| 4 | 2026 Buffalo City Chess Trials 1 (U8+U10) | Standard | 2026-02-07 | 2026-02-07 | Buffalo City (EBC) | 5 | 1240.3 | 5 | 3 | 1444.2 | 13.3 | Details |
| 5 | Chess Vikings Trials 2 2025 (D) | Standard | 2025-10-18 | 2025-10-18 | Buffalo City (EBC) | 5 | 1253.1 | 5 | 2 | 1173.5 | -7.1 | Details |
| 6 | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Standard | 2025-08-16 | 2025-08-16 | Buffalo City (EBC) | 5 | 1218.3 | 4 | 1 | 1060.7 | -12.3 | Details |
| 7 | 3rd Chess Vikings Open Championship 2025 (D) | Standard | 2025-08-02 | 2025-08-02 | Buffalo City (EBC) | 6 | 1218.3 | 6 | 4 | 1341.9 | 14.4 | Details |
| 8 | BC Schools Chess Festival 2025 (U7) | Standard | 2025-07-26 | 2025-07-26 | Buffalo City (EBC) | 7 | 1218.3 | 5 | 3 | 1402.5 | 17.3 | Details |
| 9 | Beacon Bay Winter Cup 2025 (C) | Rapid | 2025-07-09 | 2025-07-09 | Buffalo City (EBC) | 6 | 1218.4 | 6 | 2 | 1172.7 | -4.5 | Details |
| 10 | Vikings Holiday 2025 (D) | Standard | 2025-04-05 | 2025-04-05 | Buffalo City (EBC) | 6 | 1217.6 | 5 | 1 | 1015.7 | -19.1 | Details |
| 11 | 2025 Buffalo City Chess Trials 1 (U8) | Standard | 2025-03-22 | 2025-03-22 | Buffalo City (EBC) | 5 | 1217.6 | 4 | 0 | 798.9 | -32.7 | Details |
| 12 | Rapid Feb 2nd Leg 2025 (U8+U10) | Rapid | 2025-02-22 | 2025-02-22 | Buffalo City (EBC) | 7 | 1214.9 | 7 | 3.5 | 1200.7 | -1.1 | Details |
| 13 | EL Junior Closed 2024 (U10) | Standard | 2024-11-23 | 2024-11-23 | Buffalo City (EBC) | 5 | 1264 | 4 | 0 | 765.5 | -38.8 | Details |
| 14 | East London Open 2024 (C) | Standard | 2024-11-05 | 2024-11-05 | Buffalo City (EBC) | 6 | 1243.3 | 5 | 3 | 1349.8 | 9.5 | Details |
| 15 | 5th BC Trails 2024 (U10B) | Standard | 2024-08-17 | 2024-08-17 | Buffalo City (EBC) | 5 | 1211.6 | 5 | 2 | 1089.9 | -57.1 | Details |
| 16 | 5th BC Trails 2024 (U10B) | Standard | 2024-08-17 | 2024-08-17 | Buffalo City (EBC) | 5 | 1211.6 | 5 | 4.5 | 1514.9 | -15.6 | Details |
| 17 | 4th BC Trials 2024 (U10B) | Standard | 2024-06-08 | 2024-06-08 | Buffalo City (EBC) | 5 | 1194 | 5 | 3 | 1276.4 | 8.8 | Details |
| 18 | 3rd BC Trials 2024 (U10B) | Standard | 2024-05-11 | 2024-05-11 | Buffalo City (EBC) | 5 | 1200 | 5 | 2.5 | 1174.1 | -3 | Details |
Game statistics ( )
| Games | 7 |
| Wins | 3 |
| Draws | 0 |
| Losses | 4 |
| White | 4 |
| Black | 3 |
| White wins | 2 |
| Black wins | 1 |
| Score | 3 |
| Percent | 42.9 |
| Dp | -60.7 |
| AOR | 1401.2 |
| Performance | 1340.5 |
Game statistics ()
| Games | 30 |
| Wins | 16 |
| Draws | 1 |
| Losses | 13 |
| White | 16 |
| Black | 14 |
| White wins | 9 |
| Black wins | 7 |
| Score | 16.5 |
| Percent | 55 |
| Dp | 42.5 |
| AOR | 1320.2 |
| Performance | 1362.7 |
Game statistics (History)
| Games | 101 |
| Wins | 45 |
| Draws | 6 |
| Losses | 50 |
| White | 58 |
| Black | 53 |
| White wins | 24 |
| Black wins | 27 |
| Score | 48 |
| Percent | 47.5 |
| Dp | -21 |
| AOR | 1257.2 |
| Performance | 1236.2 |
Rankings (Main)
| National | |
| Overall | 4071 |
| Gender | 3402 |
| Age group | 137 |
| Gender/Age | 112 |
| Provincial | |
| Overall | 431 |
| Gender | 364 |
| Age group | 14 |
| Gender/Age | 11 |
| Regional | |
| Overall | 139 |
| Gender | 112 |
| Age group | 8 |
| Gender/Age | 7 |
Rankings (Standard)
| National | |
| Overall | 3457 |
| Gender | 2889 |
| Age group | 120 |
| Gender/Age | 96 |
| Provincial | |
| Overall | 384 |
| Gender | 323 |
| Age group | 13 |
| Gender/Age | 11 |
| Regional | |
| Overall | 131 |
| Gender | 106 |
| Age group | 8 |
| Gender/Age | 7 |
Rankings (Rapid)
| National | |
| Overall | 4886 |
| Gender | 3757 |
| Age group | 273 |
| Gender/Age | 199 |
| Provincial | |
| Overall | 471 |
| Gender | 383 |
| Age group | 21 |
| Gender/Age | 16 |
| Regional | |
| Overall | 159 |
| Gender | 121 |
| Age group | 15 |
| Gender/Age | 11 |
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 | 7 |
| Score | 3 |
| Percent | 42.9 |
| Aor | 1401.2 |
| Dp | -60.7 |
| Prat | 1340.5 |
Performance ()
| Games | 30 |
| Score | 16.5 |
| Percent | 55 |
| Aor | 1320.2 |
| Dp | 42.5 |
| Prat | 1362.7 |
Performance (12 months)
| Games | 56 |
| Score | 28.5 |
| Percent | 50.9 |
| Aor | 1297.6 |
| Dp | 7.6 |
| Prat | 1305.2 |
Performance (History)
| Games | 101 |
| Score | 48 |
| Percent | 47.5 |
| Aor | 1257.2 |
| Dp | -21 |
| Prat | 1236.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Weng, J (Junjie) | 6 | 4 | 2 | Rapid Feb 2nd Leg 2025 (U8+U10) | 2026 Buffalo City Chess Trials 1 (U8+U10) | Details |
| Overall | 2 | Makgaila, M (Moagi) | 5 | 2 | 3 | EL Junior Closed 2024 (U10) | 2026 Buffalo City Chess Trials 2 (U8+U10 Boys) | Details |
| Overall | 3 | Coetzee, N (Niki) | 3 | 1 | 2 | 2025 Buffalo City Chess Trials 1 (U8) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Details |
| Overall | 4 | Zhang, N (Nathan) | 3 | 2 | 1 | Rapid Feb 2nd Leg 2025 (U8+U10) | Beacon Bay Winter Cup 2025 (C) | Details |
| Overall | 5 | Kapp, M (Michael) | 3 | 2 | 1 | 2026 Buffalo City Chess Trials 1 (U8+U10) | 2026 Buffalo City Chess Trials 3 (U10) | Details |
| Standard | 1 | Weng, J (Junjie) | 5 | 3 | 2 | 2025 Buffalo City Chess Trials 1 (U8) | 2026 Buffalo City Chess Trials 1 (U8+U10) | Details |
| Standard | 2 | Makgaila, M (Moagi) | 5 | 2 | 3 | EL Junior Closed 2024 (U10) | 2026 Buffalo City Chess Trials 2 (U8+U10 Boys) | Details |
| Standard | 3 | Coetzee, N (Niki) | 3 | 1 | 2 | 2025 Buffalo City Chess Trials 1 (U8) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Details |
| Standard | 4 | Kapp, M (Michael) | 3 | 2 | 1 | 2026 Buffalo City Chess Trials 1 (U8+U10) | 2026 Buffalo City Chess Trials 3 (U10) | Details |
| Standard | 5 | Mgudlwa, O (Okuhle) | 2 | 2 | 0 | 2025 Buffalo City Chess Trials 1 (U8) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Details |
| Rapid | 1 | Zhang, N (Nathan) | 2 | 2 | 0 | Rapid Feb 2nd Leg 2025 (U8+U10) | Beacon Bay Winter Cup 2025 (C) | Details |