PLAYER PAGE
Jiayi Xu
1180303499Buffalo City (EBC)Personal
Main rating
| Rating | 1318.1 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1371.2 (2026-03-01) |
| Min/Max +/- allowed | 130 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.07 |
| SWe | -0.06 |
| Temp +/- | -2.2 |
| Penalties | 0 |
| Weight perform | 1271.1 |
| Final +/- | -2.2 |
| New Rating () | |
| Rating | 1315.9 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1371.2 (2026-03-01) |
| Min/Max +/- allowed | 129.9 |
Standard rating
| Rating | 1331.1 |
| K-factor | 36 |
| Floor | 888 |
| Highest | 1388 (2026-04-01) |
| Min/Max +/- allowed | 126.9 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.08 |
| SWe | -0.08 |
| Temp +/- | -3 |
| Penalties | 0 |
| Weight perform | 1271.1 |
| Final +/- | -3 |
| New Rating () | |
| Rating | 1328 |
| K-factor | 36 |
| Floor | 888 |
| Highest | 1388 (2026-04-01) |
| Min/Max +/- allowed | 126.9 |
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 | 2026 Buffalo City Chess Trials 5 (U10) | Standard | 2026-07-11 | 2026-07-11 | Buffalo City (EBC) | 5 | 1318.1 | 5 | 3 | 1297.3 | -2.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Buffalo City Chess Trials 4 (U10) | Standard | 2026-05-30 | 2026-05-30 | Buffalo City (EBC) | 5 | 1361.1 | 5 | 2 | 1178.7 | -33.1 | Details |
| 2 | Spartans Bishops 2026 (Junior Pawns) | Standard | 2026-05-01 | 2026-05-01 | Sarah Baartman (ESB) | 5 | 1361.1 | 4 | 2 | 1328.4 | -2.1 | Details |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | 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 |
| 12 | 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 |
| 13 | Vikings Holiday 2025 (D) | Standard | 2025-04-05 | 2025-04-05 | Buffalo City (EBC) | 6 | 1217.6 | 5 | 1 | 1015.7 | -19.1 | Details |
| 14 | 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 |
| 15 | 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 |
| 16 | EL Junior Closed 2024 (U10) | Standard | 2024-11-23 | 2024-11-23 | Buffalo City (EBC) | 5 | 1264 | 4 | 0 | 765.5 | -38.8 | Details |
| 17 | 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 |
| 18 | 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 |
| 19 | 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 |
| 20 | 4th BC Trials 2024 (U10B) | Standard | 2024-06-08 | 2024-06-08 | Buffalo City (EBC) | 5 | 1194 | 5 | 3 | 1276.4 | 8.8 | Details |
| 21 | 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 | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 2 |
| Black | 3 |
| White wins | 1 |
| Black wins | 2 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1212.3 |
| Performance | 1297.3 |
Game statistics ()
| Games | 44 |
| Wins | 23 |
| Draws | 1 |
| Losses | 20 |
| White | 22 |
| Black | 22 |
| White wins | 11 |
| Black wins | 12 |
| Score | 23.5 |
| Percent | 53.4 |
| Dp | 29 |
| AOR | 1302.2 |
| Performance | 1331.2 |
Game statistics (History)
| Games | 115 |
| Wins | 52 |
| Draws | 6 |
| Losses | 57 |
| White | 64 |
| Black | 61 |
| White wins | 26 |
| Black wins | 32 |
| Score | 55 |
| Percent | 47.8 |
| Dp | -18.5 |
| AOR | 1258 |
| Performance | 1239.6 |
Rankings (Main)
| National | |
| Overall | 5827 |
| Gender | 4794 |
| Age group | 263 |
| Gender/Age | 205 |
| Provincial | |
| Overall | 589 |
| Gender | 496 |
| Age group | 19 |
| Gender/Age | 15 |
| Regional | |
| Overall | 201 |
| Gender | 163 |
| Age group | 11 |
| Gender/Age | 9 |
Rankings (Standard)
| National | |
| Overall | 4820 |
| Gender | 3974 |
| Age group | 221 |
| Gender/Age | 170 |
| Provincial | |
| Overall | 507 |
| Gender | 428 |
| Age group | 17 |
| Gender/Age | 14 |
| Regional | |
| Overall | 172 |
| Gender | 142 |
| Age group | 10 |
| Gender/Age | 9 |
Rankings (Rapid)
| National | |
| Overall | 4987 |
| Gender | 3843 |
| Age group | 357 |
| Gender/Age | 264 |
| Provincial | |
| Overall | 390 |
| Gender | 318 |
| Age group | 19 |
| Gender/Age | 14 |
| Regional | |
| Overall | 145 |
| Gender | 111 |
| Age group | 13 |
| Gender/Age | 9 |
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 | 5 |
| Score | 3 |
| Percent | 60 |
| Aor | 1212.3 |
| Dp | 85 |
| Prat | 1297.3 |
Performance ()
| Games | 44 |
| Score | 23.5 |
| Percent | 53.4 |
| Aor | 1302.2 |
| Dp | 29 |
| Prat | 1331.2 |
Performance (12 months)
| Games | 59 |
| Score | 30.5 |
| Percent | 51.7 |
| Aor | 1286.2 |
| Dp | 14.4 |
| Prat | 1300.6 |
Performance (History)
| Games | 115 |
| Score | 55 |
| Percent | 47.8 |
| Aor | 1258 |
| Dp | -18.5 |
| Prat | 1239.6 |
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 | Kapp, M (Michael) | 4 | 3 | 1 | 2026 Buffalo City Chess Trials 1 (U8+U10) | Eastern Cape Open 2026 (U8-U14 Boys) | Details |
| Overall | 4 | Coetzee, N (Niki) | 3 | 1 | 2 | 2025 Buffalo City Chess Trials 1 (U8) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Details |
| Overall | 5 | Mgudlwa, O (Okuhle) | 3 | 2 | 1 | Rapid Feb 2nd Leg 2025 (U8+U10) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | 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 | Kapp, M (Michael) | 4 | 3 | 1 | 2026 Buffalo City Chess Trials 1 (U8+U10) | Eastern Cape Open 2026 (U8-U14 Boys) | Details |
| Standard | 4 | Coetzee, N (Niki) | 3 | 1 | 2 | 2025 Buffalo City Chess Trials 1 (U8) | Buffalo City Chess Junior Closed 2025 (U8 Open+Girls) | Details |
| Standard | 5 | Mtwecu, Y (Yanga) | 2 | 1 | 1 | 2026 Buffalo City Chess Trials 1 (U8+U10) | 2026 Buffalo City Chess Trials 4 (U10) | Details |
| Rapid | 1 | Zhang, N (Nathan) | 2 | 2 | 0 | Rapid Feb 2nd Leg 2025 (U8+U10) | Beacon Bay Winter Cup 2025 (C) | Details |