PLAYER PAGE
Matthew Koutsouvelis
1140151191Nelson Mandela Bay (ENM)Personal
Main rating
| Rating | 1707.6 |
| K-factor | 28 |
| Floor | 1207.6 |
| Highest | 1707.6 (2026-03-01) |
| Min/Max +/- allowed | 80 |
| Rating Change () | |
| Games | 19 |
| Score | 12.5 |
| We | 13.91 |
| SWe | -1.32 |
| Temp +/- | -36.9 |
| Penalties | 0 |
| Weight perform | 1705.3 |
| Final +/- | -36.9 |
| New Rating () | |
| Rating | 1670.7 |
| K-factor | 28 |
| Floor | 1207.6 |
| Highest | 1707.6 (2026-03-01) |
| Min/Max +/- allowed | 80.5 |
Standard rating
| Rating | 1707.6 |
| K-factor | 28 |
| Floor | 1207.6 |
| Highest | 1707.6 (2026-03-01) |
| Min/Max +/- allowed | 80.5 |
| Rating Change () | |
| Games | 19 |
| Score | 12.5 |
| We | 13.94 |
| SWe | -1.44 |
| Temp +/- | -40.4 |
| Penalties | 0 |
| Weight perform | 1705.3 |
| Final +/- | -40.4 |
| New Rating () | |
| Rating | 1667.2 |
| K-factor | 28 |
| Floor | 1207.6 |
| Highest | 1707.6 (2026-03-01) |
| Min/Max +/- allowed | 80.5 |
Rapid rating
| Rating | 1184 |
| 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 | 1184 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1273.9 |
| K-factor | 36 |
| Floor | 773.9 |
| Highest | 1273.9 (2025-02-01) |
| Min/Max +/- allowed | 149.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1273.9 |
| K-factor | 36 |
| Floor | 773.9 |
| Highest | 1273.9 (2025-02-01) |
| Min/Max +/- allowed | 149.2 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | NMBCU Trials 3 2026 (U14) | Standard | 2026-04-18 | 2026-04-18 | Nelson Mandela Bay (ENM) | 5 | 1707.6 | 3 | 2 | 1490.2 | -17.5 | Details |
| 2 | Eastern Cape Open 2026 (U8-U14 Boys) | Standard | 2026-04-11 | 2026-04-12 | Buffalo City (EBC) | 7 | 1707.6 | 7 | 5.5 | 1755.3 | 13.5 | Details |
| 3 | South African Junior Closed Chess Championship 2026 (U12 Open) | Classical | 2026-03-28 | 2026-04-02 | Bojanala Platina (NBR) | 9 | 1707.6 | 9 | 5 | 1599.3 | -32.8 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 NMBCU Trials 2 (U14) | Standard | 2026-03-06 | 2026-03-07 | Nelson Mandela Bay (ENM) | 6 | 1663.9 | 6 | 5 | 1829.4 | 27.4 | Details |
| 2 | Pearson Chess Festival 2026 (C) | Standard | 2026-02-27 | 2026-02-28 | Nelson Mandela Bay (ENM) | 5 | 1669.6 | 4 | 3 | 1704.1 | 2.8 | Details |
| 3 | NMBCU Trial 1 2026 (U14) | Standard | 2026-02-20 | 2026-02-21 | Nelson Mandela Bay (ENM) | 5 | 1669.6 | 5 | 4 | 1723.5 | 4.8 | Details |
| 4 | SAJCCC ENM Players Fundraiser February 2026 (A) | Standard | 2026-02-14 | 2026-02-14 | Nelson Mandela Bay (ENM) | 5 | 1669.6 | 5 | 2.5 | 1555.5 | -11.8 | Details |
| 5 | 2025 Mzansi Individual Championships (U12 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1691 | 6 | 4 | 1623.8 | -9.2 | Details |
| 6 | 2025 Mzansi Inter Provincial Team Championships (U12 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1691 | 6 | 3.5 | 1637.3 | -6.1 | Details |
| 7 | EC Closed 2025 (U12 Boys) | Standard | 2025-09-06 | 2025-09-07 | Nelson Mandela Bay (ENM) | 6 | 1662.2 | 6 | 5 | 1815.5 | 20.5 | Details |
| 8 | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Open) | Standard | 2025-07-11 | 2025-07-12 | Amathole (EAL) | 6 | 1599.2 | 6 | 5.5 | 1769.5 | 20.3 | Details |
| 9 | Eastern Cape Inter-Regional Team Chess Championship 2025 (U12) | Standard | 2025-07-10 | 2025-07-11 | Amathole (EAL) | 5 | 1599.2 | 4 | 3.5 | 1605 | 0.7 | Details |
| 10 | Ty's Winter Classic 2025 | Standard | 2025-06-27 | 2025-06-28 | Nelson Mandela Bay (ENM) | 7 | 1496.9 | 7 | 6.5 | 1759.8 | 35.4 | Details |
| 11 | NMBCU Closed 2025 (U12) | Standard | 2025-06-13 | 2025-06-14 | Nelson Mandela Bay (ENM) | 6 | 1496.9 | 6 | 4 | 1579.6 | 9.8 | Details |
| 12 | NMBCU Open 2025 (C) | Standard | 2025-05-23 | 2025-05-24 | Nelson Mandela Bay (ENM) | 6 | 1492.5 | 6 | 4 | 1482.2 | -1 | Details |
| 13 | NMBCU Trial 4 2025 (U12) | Standard | 2025-05-09 | 2025-05-10 | Nelson Mandela Bay (ENM) | 6 | 1492.5 | 5 | 3.5 | 1522.3 | 3.8 | Details |
| 14 | NMB 2nd Trials 2025 (U12) | Standard | 2025-03-07 | 2025-03-08 | Nelson Mandela Bay (ENM) | 6 | 1449 | 6 | 4.5 | 1600.8 | 19.3 | Details |
| 15 | Pearson High Chess Festival 2025 (C) | Standard | 2025-02-21 | 2025-02-22 | Nelson Mandela Bay (ENM) | 5 | 1390 | 5 | 2.5 | 1305.7 | -8.8 | Details |
| 16 | NMBCH Trial 1 2025 (U12) | Standard | 2025-02-14 | 2025-02-15 | Nelson Mandela Bay (ENM) | 6 | 1390 | 6 | 5 | 1700.5 | 36.4 | Details |
| 17 | NMBCU vs BCC Derby Chess Invitational 2025 (U12) | Standard | 2025-01-10 | 2025-01-11 | Nelson Mandela Bay (ENM) | 5 | 1303.2 | 5 | 3.5 | 1577.7 | 26.8 | Details |
| 18 | NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B) | Blitz | 2025-01-12 | 2025-01-12 | Nelson Mandela Bay (ENM) | 9 | 1303.2 | 9 | 6.5 | 1563.3 | 10 | Details |
| 19 | Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Championship) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1336.3 | 7 | 2.5 | 1228.8 | -18.6 | Details |
| 20 | Grey Junior School Chess Team Championship 2024 (Senior) | Rapid | 2024-11-02 | 2024-11-02 | Nelson Mandela Bay (ENM) | 5 | 1328.1 | 5 | 3 | 1398.4 | 4.6 | Details |
| 21 | NMBCU Closed 2024 (U12) | Standard | 2024-09-20 | 2024-09-21 | Nelson Mandela Bay (ENM) | 6 | 1292 | 6 | 4 | 1459.9 | 20.1 | Details |
| 22 | NMBCU Trial 5 2024 (U12) | Standard | 2024-08-16 | 2024-08-17 | Nelson Mandela Bay (ENM) | 6 | 1270.2 | 6 | 3.5 | 1374.7 | 12.1 | Details |
| 23 | NMBCU Trials 4 2024 (U12) | Standard | 2024-07-12 | 2024-07-13 | Nelson Mandela Bay (ENM) | 6 | 1277.1 | 6 | 3 | 1244.6 | -3.8 | Details |
| 24 | NMBCU Trial 3 2024 (U12) | Standard | 2024-05-10 | 2024-05-11 | Nelson Mandela Bay (ENM) | 6 | 1296.5 | 6 | 3 | 1204.8 | -10.8 | Details |
| 25 | NMBCU Trials 1 2024 (U12) | Standard | 2024-02-16 | 2024-02-16 | Nelson Mandela Bay (ENM) | 6 | 1293.5 | 5 | 4 | 1476.7 | 18.6 | Details |
| 26 | Pearson Open Chess Tournament 2024 (C) | Standard | 2024-02-23 | 2024-02-24 | Nelson Mandela Bay (ENM) | 5 | 1293.5 | 5 | 2 | 1115 | -16.6 | Details |
| 27 | Eastern Cape Provincial Individual Championship 2023 (U10 Boys) | Standard | 2023-10-05 | 2023-10-05 | Nelson Mandela Bay (ENM) | 7 | 1273.9 | 7 | 4 | 1332.7 | 7.5 | Details |
| 28 | Eastern Cape Chess Team Championship 2023 (U10) | Standard | 2023-10-07 | 2023-10-08 | Sarah Baartman (ESB) | 5 | 1273.9 | 3 | 2 | 1317.1 | 3.4 | Details |
| 29 | NMBCU Closed 2023 (U10) | Standard | 2023-08-11 | 2023-08-12 | Nelson Mandela Bay (ENM) | 6 | 1269.7 | 6 | 3.5 | 1278.7 | 1.2 | Details |
| 30 | NMBCU Trial 4 2023 (U10) | Standard | 2023-07-28 | 2023-07-29 | Nelson Mandela Bay (ENM) | 6 | 1235.6 | 4 | 3 | 1404 | 13.1 | Details |
| 31 | EP Trials 3 2023 (U10) | Standard | 2023-05-05 | 2023-05-06 | Nelson Mandela Bay (ENM) | 6 | 1247.6 | 4 | 2 | 1161.8 | -6.6 | Details |
| 32 | Youth Chess Acadamy Rapid Tournament 2023 (B) | Rapid | 2023-03-11 | 2023-03-11 | Nelson Mandela Bay (ENM) | 5 | 1230.5 | 5 | 1 | 954.2 | -12.3 | Details |
| 33 | NMB 2nd Trials 2023 (U10) | Standard | 2023-03-24 | 2023-03-25 | Nelson Mandela Bay (ENM) | 6 | 1230.5 | 3 | 3 | 1616.3 | 21.9 | Details |
| 34 | NMB 1st Trials 2023 (U8+U10) | Standard | 2023-02-17 | 2023-02-18 | Nelson Mandela Bay (ENM) | 6 | 1200 | 6 | 4 | 1330.5 | 15.3 | Details |
Game statistics ( )
| Games | 10 |
| Wins | 7 |
| Draws | 1 |
| Losses | 2 |
| White | 5 |
| Black | 5 |
| White wins | 3 |
| Black wins | 4 |
| Score | 7.5 |
| Percent | 75 |
| Dp | 212.5 |
| AOR | 1463.2 |
| Performance | 1675.7 |
Game statistics ()
| Games | 39 |
| Wins | 26 |
| Draws | 2 |
| Losses | 11 |
| White | 21 |
| Black | 18 |
| White wins | 12 |
| Black wins | 14 |
| Score | 27 |
| Percent | 69.2 |
| Dp | 163.5 |
| AOR | 1511.9 |
| Performance | 1675.4 |
Game statistics (History)
| Games | 206 |
| Wins | 127 |
| Draws | 18 |
| Losses | 61 |
| White | 104 |
| Black | 102 |
| White wins | 62 |
| Black wins | 65 |
| Score | 136 |
| Percent | 66 |
| Dp | 136.2 |
| AOR | 1361.4 |
| Performance | 1497.6 |
Rankings (Main)
| National | |
| Overall | 475 |
| Gender | 446 |
| Age group | 14 |
| Gender/Age | 13 |
| Provincial | |
| Overall | 37 |
| Gender | 34 |
| Age group | 2 |
| Gender/Age | 2 |
| Regional | |
| Overall | 21 |
| Gender | 19 |
| Age group | 2 |
| Gender/Age | 2 |
Rankings (Standard)
| National | |
| Overall | 457 |
| Gender | 429 |
| Age group | 14 |
| Gender/Age | 13 |
| Provincial | |
| Overall | 32 |
| Gender | 29 |
| Age group | 2 |
| Gender/Age | 2 |
| Regional | |
| Overall | 17 |
| Gender | 15 |
| Age group | 2 |
| Gender/Age | 2 |
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 | 19 |
| Score | 12.5 |
| Percent | 65.8 |
| Aor | 1505.3 |
| Dp | 134.2 |
| Prat | 1639.5 |
Performance ()
| Games | 39 |
| Score | 27 |
| Percent | 69.2 |
| Aor | 1511.9 |
| Dp | 163.5 |
| Prat | 1675.4 |
Performance (12 months)
| Games | 91 |
| Score | 66.5 |
| Percent | 73.1 |
| Aor | 1464.7 |
| Dp | 196.2 |
| Prat | 1660.9 |
Performance (History)
| Games | 206 |
| Score | 136 |
| Percent | 66 |
| Aor | 1361.4 |
| Dp | 136.2 |
| Prat | 1497.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Stander, CL (Cael Lelethu) | 7 | 2 | 5 | NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open B) | 2026 NMBCU Trials 2 (U14) | Details |
| Overall | 2 | Mouton, W (Wyatt) | 6 | 2 | 4 | NMB 1st Trials 2023 (U8+U10) | NMBCU Trial 4 2025 (U12) | Details |
| Overall | 3 | Boggenpoel, L (Levi) | 6 | 5 | 1 | EP Trials 3 2023 (U10) | NMB 2nd Trials 2025 (U12) | Details |
| Overall | 4 | Adams, C (Ciara) | 5 | 3 | 2 | Youth Chess Acadamy Rapid Tournament 2023 (B) | 2026 NMBCU Trials 2 (U14) | Details |
| Overall | 5 | Furniss, T (Tyler) | 5 | 3 | 2 | NMB 1st Trials 2023 (U8+U10) | Ty's Winter Classic 2025 | Details |
| Standard | 1 | Stander, CL (Cael Lelethu) | 6 | 2 | 4 | NMBCH Trial 1 2025 (U12) | 2026 NMBCU Trials 2 (U14) | Details |
| Standard | 2 | Mouton, W (Wyatt) | 6 | 2 | 4 | NMB 1st Trials 2023 (U8+U10) | NMBCU Trial 4 2025 (U12) | Details |
| Standard | 3 | Boggenpoel, L (Levi) | 6 | 5 | 1 | EP Trials 3 2023 (U10) | NMB 2nd Trials 2025 (U12) | Details |
| Standard | 4 | Furniss, T (Tyler) | 5 | 3 | 2 | NMB 1st Trials 2023 (U8+U10) | Ty's Winter Classic 2025 | Details |
| Standard | 5 | Jacobs, J (Joel) | 5 | 2 | 3 | NMB 1st Trials 2023 (U8+U10) | EC Closed 2025 (U12 Boys) | Details |