PLAYER PAGE
Zheyi Xu
1150149011Buffalo City (EBC)Personal
Main rating
| Rating | 1515.2 |
| K-factor | 32 |
| Floor | 1015.2 |
| Highest | 1515.2 (2026-06-01) |
| Min/Max +/- allowed | 106 |
| Rating Change () | |
| Games | 4 |
| Score | 2 |
| We | 2.88 |
| SWe | -0.73 |
| Temp +/- | -23.2 |
| Penalties | 0 |
| Weight perform | 1446.7 |
| Final +/- | -23.2 |
| New Rating () | |
| Rating | 1491.9 |
| K-factor | 32 |
| Floor | 1015.2 |
| Highest | 1515.2 (2026-06-01) |
| Min/Max +/- allowed | 105.8 |
Standard rating
| Rating | 1515.2 |
| K-factor | 32 |
| Floor | 1015.2 |
| Highest | 1515.2 (2026-06-01) |
| Min/Max +/- allowed | 105.8 |
| Rating Change () | |
| Games | 4 |
| Score | 2 |
| We | 2.74 |
| SWe | -0.74 |
| Temp +/- | -23.8 |
| Penalties | 0 |
| Weight perform | 1446.7 |
| Final +/- | -23.8 |
| New Rating () | |
| Rating | 1491.4 |
| K-factor | 32 |
| Floor | 1015.2 |
| Highest | 1515.2 (2026-06-01) |
| Min/Max +/- allowed | 105.8 |
Rapid rating
| Rating | 1331.6 |
| K-factor | 36 |
| Floor | 861.9 |
| Highest | 1504.6 (2023-06-01) |
| Min/Max +/- allowed | 107.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1236 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1331.6 |
| K-factor | 36 |
| Floor | 861.9 |
| Highest | 1504.6 (2023-06-01) |
| Min/Max +/- allowed | 107.4 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| 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 (2018-10-01) |
| 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 (U12) | Standard | 2026-07-11 | 2026-07-11 | Buffalo City (EBC) | 5 | 1515.2 | 4 | 2 | 1327.2 | -23.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Buffalo City Chess Trials 4 (U12) | Standard | 2026-05-30 | 2026-05-30 | Buffalo City (EBC) | 5 | 1444.4 | 5 | 4 | 1547.2 | 15.2 | Details |
| 2 | Spartans Bishops 2026 (Bishops) | Standard | 2026-05-01 | 2026-05-01 | Sarah Baartman (ESB) | 5 | 1444.4 | 5 | 3.5 | 1578.1 | 13.8 | Details |
| 3 | Eastern Cape Open 2026 (U8-U14 Boys) | Standard | 2026-04-11 | 2026-04-12 | Buffalo City (EBC) | 7 | 1431 | 6 | 3.5 | 1494.3 | 13.5 | Details |
| 4 | 2026 Buffalo City Chess Trials 3 (U12) | Standard | 2026-03-21 | 2026-03-21 | Buffalo City (EBC) | 5 | 1435.9 | 5 | 4 | 1534 | 14.5 | Details |
| 5 | Vikings Rapid 2026 (B) | Rapid | 2026-02-21 | 2026-02-21 | Buffalo City (EBC) | 8 | 1435.9 | 8 | 5.5 | 1399.4 | -4 | Details |
| 6 | 2026 Buffalo City Chess Trials 2 (U12 Boys) | Standard | 2026-02-28 | 2026-02-28 | Buffalo City | 5 | 1435.9 | 5 | 3 | 1342.4 | -15.4 | Details |
| 7 | 2026 Buffalo City Chess Trials 1 (U12) | Standard | 2026-02-07 | 2026-02-07 | Buffalo City (EBC) | 5 | 1404.9 | 5 | 4 | 1595.5 | 12.6 | Details |
| 8 | Chess Vikings Trials 2 2025 (C) | Standard | 2025-10-18 | 2025-10-18 | Buffalo City (EBC) | 5 | 1388.1 | 5 | 3 | 1490.7 | 9.3 | Details |
| 9 | Buffalo City Chess Junior Closed 2025 (U12 Open) | Standard | 2025-08-16 | 2025-08-16 | Buffalo City (EBC) | 5 | 1380.8 | 5 | 2 | 1324.3 | -4.8 | Details |
| 10 | BC Schools Chess Festival 2025 (U11 Open) | Standard | 2025-07-26 | 2025-07-26 | Buffalo City (EBC) | 5 | 1380.7 | 5 | 3.5 | 1464.2 | 9 | Details |
| 11 | Beacon Bay Winter Cup 2025 (B) | Rapid | 2025-07-09 | 2025-07-09 | Buffalo City (EBC) | 6 | 1377.9 | 6 | 4 | 1397 | 1.5 | Details |
| 12 | 2nd Vikings Classical 2025 (C) | Standard | 2025-05-24 | 2025-05-24 | Buffalo City (EBC) | 5 | 1379.7 | 5 | 3 | 1375.9 | -1 | Details |
| 13 | 2025 Buffalo City Chess Trials 3 (U12) | Standard | 2025-05-10 | 2025-05-10 | Buffalo City (EBC) | 5 | 1351.6 | 5 | 4 | 1522.5 | 16.1 | Details |
| 14 | EC Open 2025 (U8-U14 Boys) | Standard | 2025-05-02 | 2025-05-02 | Buffalo City (EBC) | 7 | 1351.6 | 7 | 3 | 1314.6 | -5.1 | Details |
| 15 | Vikings Holiday 2025 (Rapid B) | Rapid | 2025-04-05 | 2025-04-05 | Buffalo City (EBC) | 5 | 1326.8 | 5 | 2 | 1224.1 | -5 | Details |
| 16 | Vikings Holiday 2025 (Blitz B) | Blitz | 2025-04-05 | 2025-04-05 | Buffalo City (EBC) | 7 | 1326.8 | 5 | 3 | 1297.9 | -0.8 | Details |
| 17 | Vikings Holiday 2025 (C) | Standard | 2025-04-05 | 2025-04-05 | Buffalo City (EBC) | 5 | 1326.8 | 1 | 1 | 1661.7 | 7.3 | Details |
| 18 | 2025 Buffalo City Chess Trials 2 (U12) | Standard | 2025-04-12 | 2025-04-12 | Buffalo City (EBC) | 5 | 1326.8 | 5 | 3 | 1361.9 | 2.8 | Details |
| 19 | 2025 Buffalo City Chess Trials 1 (U12) | Standard | 2025-03-22 | 2025-03-22 | Buffalo City (EBC) | 5 | 1326.8 | 5 | 3 | 1417 | 9.5 | Details |
| 20 | Rapid Feb 2nd Leg 2025 (U12) | Rapid | 2025-02-22 | 2025-02-22 | Buffalo City (EBC) | 7 | 1300.2 | 7 | 6 | 1566.7 | 14.8 | Details |
| 21 | NMBCU vs BCC Derby Chess Invitational 2025 (U10) | Standard | 2025-01-10 | 2025-01-11 | Nelson Mandela Bay (ENM) | 5 | 1326.1 | 5 | 1 | 1186.1 | -13.5 | Details |
| 22 | NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B) | Blitz | 2025-01-12 | 2025-01-12 | Nelson Mandela Bay (ENM) | 9 | 1326.1 | 9 | 4.5 | 1297.1 | -0.9 | Details |
| 23 | East London Open 2024 (C) | Standard | 2024-11-05 | 2024-11-05 | Buffalo City (EBC) | 6 | 1326.4 | 5 | 3 | 1330.3 | -0.2 | Details |
| 24 | 5th BC Trails 2024 (U10A) | Standard | 2024-08-17 | 2024-08-17 | Buffalo City (EBC) | 5 | 1278.3 | 5 | 4 | 1428.9 | 14.1 | Details |
| 25 | Hackers Open 2024 (C) | Standard | 2024-08-10 | 2024-08-10 | Buffalo City (EBC) | 5 | 1278.3 | 5 | 3 | 1280.5 | 1.3 | Details |
| 26 | Hackers Open 2024 (Blitz) | Blitz | 2024-08-11 | 2024-08-11 | Buffalo City (EBC) | 7 | 1278.3 | 0 | 0 | 0 | 0 | Details |
| 27 | 4th BC Trials 2024 (U10A) | Standard | 2024-06-08 | 2024-06-08 | Buffalo City (EBC) | 5 | 1253 | 5 | 3 | 1370.6 | 12.1 | Details |
| 28 | 3rd BC Trials 2024 (U10A) | Standard | 2024-05-11 | 2024-05-11 | Buffalo City (EBC) | 5 | 1242.2 | 5 | 3 | 1310.1 | 6 | Details |
| 29 | UFH Open 2024 (C) | Standard | 2024-04-13 | 2024-04-13 | Amathole (EAL) | 5 | 1241 | 5 | 3 | 1254.4 | 0.7 | Details |
| 30 | 2nd BC Trials 2024 (U10A) | Standard | 2024-03-09 | 2024-03-09 | Buffalo City (EBC) | 5 | 1229.9 | 5 | 2.5 | 1286.4 | 6.1 | Details |
| 31 | Chess Vikings Exam Rapid 2023 (C) | Rapid | 2023-11-04 | 2023-11-04 | Buffalo City (EBC) | 7 | 1215.7 | 7 | 4 | 1322.4 | 7.8 | Details |
| 32 | BC 5th Trials 2023 (U10A) | Standard | 2023-09-02 | 2023-09-02 | Buffalo City (EBC) | 5 | 1215.7 | 0 | 0 | 0 | 0 | Details |
| 33 | 3rd BC Trials 2023 (U10A) | Standard | 2023-08-12 | 2023-08-12 | Buffalo City (EBC) | 5 | 1250.7 | 4 | 1 | 999.2 | -19.6 | Details |
| 34 | 2nd BC Trials 2023 (U10B) | Rapid | 2023-06-03 | 2023-06-03 | Buffalo City (EBC) | 7 | 1193.3 | 7 | 6 | 1488.9 | 28.9 | Details |
| 35 | BC Chess Trials 1 of 5 2023 (U10B) | Standard | 2023-04-22 | 2023-04-22 | Buffalo City (EBC) | 5 | 1173.7 | 5 | 3 | 1267.7 | 9.8 | Details |
| 36 | 3rd Vikings Champs 2023 (U10C+U12C) | Standard | 2023-03-25 | 2023-03-25 | Buffalo City (EBC) | 5 | 1160.8 | 5 | 3 | 1232.9 | 6.3 | Details |
| 37 | Little Vikings 2023 (U10B+U12B) | Standard | 2023-02-11 | 2023-02-11 | Buffalo City (EBC) | 5 | 1200 | 5 | 1.5 | 1005.1 | -19.8 | Details |
Game statistics ( )
| Games | 4 |
| Wins | 2 |
| Draws | 0 |
| Losses | 2 |
| White | 2 |
| Black | 2 |
| White wins | 1 |
| Black wins | 1 |
| Score | 2 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1327.2 |
| Performance | 1327.2 |
Game statistics ()
| Games | 43 |
| Wins | 27 |
| Draws | 5 |
| Losses | 11 |
| White | 22 |
| Black | 21 |
| White wins | 13 |
| Black wins | 14 |
| Score | 29.5 |
| Percent | 68.6 |
| Dp | 158.1 |
| AOR | 1317.6 |
| Performance | 1475.7 |
Game statistics (History)
| Games | 191 |
| Wins | 111 |
| Draws | 9 |
| Losses | 71 |
| White | 97 |
| Black | 94 |
| White wins | 62 |
| Black wins | 49 |
| Score | 115.5 |
| Percent | 60.5 |
| Dp | 89 |
| AOR | 1278.4 |
| Performance | 1367.4 |
Rankings (Main)
| National | |
| Overall | 1853 |
| Gender | 1639 |
| Age group | 140 |
| Gender/Age | 114 |
| Provincial | |
| Overall | 192 |
| Gender | 170 |
| Age group | 19 |
| Gender/Age | 14 |
| Regional | |
| Overall | 66 |
| Gender | 57 |
| Age group | 7 |
| Gender/Age | 5 |
Rankings (Standard)
| National | |
| Overall | 1681 |
| Gender | 1476 |
| Age group | 133 |
| Gender/Age | 108 |
| Provincial | |
| Overall | 172 |
| Gender | 150 |
| Age group | 16 |
| Gender/Age | 12 |
| Regional | |
| Overall | 60 |
| Gender | 50 |
| Age group | 6 |
| Gender/Age | 4 |
Rankings (Rapid)
| National | |
| Overall | 1603 |
| Gender | 1356 |
| Age group | 203 |
| Gender/Age | 165 |
| Provincial | |
| Overall | 126 |
| Gender | 108 |
| Age group | 14 |
| Gender/Age | 12 |
| Regional | |
| Overall | 44 |
| Gender | 34 |
| Age group | 6 |
| Gender/Age | 4 |
Rankings (Blitz)
| National | |
| Overall | 517 |
| Gender | 469 |
| Age group | 28 |
| Gender/Age | 24 |
| Provincial | |
| Overall | 67 |
| Gender | 63 |
| Age group | 7 |
| Gender/Age | 7 |
| Regional | |
| Overall | 22 |
| Gender | 21 |
| Age group | 3 |
| Gender/Age | 3 |
Performance ( )
| Games | 4 |
| Score | 2 |
| Percent | 50 |
| Aor | 1327.2 |
| Dp | 0 |
| Prat | 1327.2 |
Performance ()
| Games | 43 |
| Score | 29.5 |
| Percent | 68.6 |
| Aor | 1317.6 |
| Dp | 158.1 |
| Prat | 1475.7 |
Performance (12 months)
| Games | 53 |
| Score | 34.5 |
| Percent | 65.1 |
| Aor | 1334.6 |
| Dp | 128.3 |
| Prat | 1462.9 |
Performance (History)
| Games | 191 |
| Score | 115.5 |
| Percent | 60.5 |
| Aor | 1278.4 |
| Dp | 89 |
| Prat | 1367.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Lin, Y (Yifan) | 9 | 5 | 4 | Hackers Open 2024 (C) | 2026 Buffalo City Chess Trials 3 (U12) | Details |
| Overall | 2 | Coetzee, T (Tristan) | 6 | 3 | 3 | 3rd BC Trials 2024 (U10A) | Eastern Cape Open 2026 (U8-U14 Boys) | Details |
| Overall | 3 | Krouse, L (Logan) | 5 | 3 | 2 | East London Open 2024 (C) | Buffalo City Chess Junior Closed 2025 (U12 Open) | Details |
| Overall | 4 | Bopi, H (Hlelokuhle) | 5 | 3 | 2 | 2nd BC Trials 2023 (U10B) | 2026 Buffalo City Chess Trials 3 (U12) | Details |
| Overall | 5 | James, K (Kyle) | 5 | 3 | 2 | Chess Vikings Exam Rapid 2023 (C) | Eastern Cape Open 2026 (U8-U14 Boys) | Details |
| Standard | 1 | Lin, Y (Yifan) | 7 | 4 | 3 | Hackers Open 2024 (C) | 2026 Buffalo City Chess Trials 3 (U12) | Details |
| Standard | 2 | Coetzee, T (Tristan) | 5 | 2 | 3 | 3rd BC Trials 2024 (U10A) | Eastern Cape Open 2026 (U8-U14 Boys) | Details |
| Standard | 3 | Bopi, H (Hlelokuhle) | 4 | 2 | 2 | 3rd BC Trials 2024 (U10A) | 2026 Buffalo City Chess Trials 3 (U12) | Details |
| Standard | 4 | Gwana, L (Libubomi) | 3 | 1 | 2 | 4th BC Trials 2024 (U10A) | 2026 Buffalo City Chess Trials 1 (U12) | Details |
| Standard | 5 | Krouse, L (Logan) | 3 | 1 | 2 | East London Open 2024 (C) | Buffalo City Chess Junior Closed 2025 (U12 Open) | Details |
| Rapid | 1 | James, K (Kyle) | 3 | 1 | 2 | Chess Vikings Exam Rapid 2023 (C) | Vikings Rapid 2026 (B) | Details |
| Rapid | 2 | Lin, Y (Yifan) | 2 | 1 | 1 | Rapid Feb 2nd Leg 2025 (U12) | Beacon Bay Winter Cup 2025 (B) | Details |
| Rapid | 3 | Bruyns, N (Nayzia) | 2 | 2 | 0 | Rapid Feb 2nd Leg 2025 (U12) | Vikings Rapid 2026 (B) | Details |
| Rapid | 4 | Gonya, M (Mvuni) | 2 | 1 | 1 | 2nd BC Trials 2023 (U10B) | Chess Vikings Exam Rapid 2023 (C) | Details |
| Rapid | 5 | Wood, S (Sebastian) | 2 | 2 | 0 | 2nd BC Trials 2023 (U10B) | Rapid Feb 2nd Leg 2025 (U12) | Details |