PLAYER PAGE
Joshua Koutsouvelis
1110151213Nelson Mandela Bay (ENM)Personal
Main rating
| Rating | 1334.8 |
| K-factor | 36 |
| Floor | 848.2 |
| Highest | 1355.9 (2024-07-01) |
| Min/Max +/- allowed | 133 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1283.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1334.8 |
| K-factor | 36 |
| Floor | 848.2 |
| Highest | 1355.9 (2024-07-01) |
| Min/Max +/- allowed | 132.8 |
Standard rating
| Rating | 1347.2 |
| K-factor | 36 |
| Floor | 868.1 |
| Highest | 1368.1 (2025-08-01) |
| Min/Max +/- allowed | 130.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1283.3 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1347.2 |
| K-factor | 36 |
| Floor | 868.1 |
| Highest | 1368.1 (2025-08-01) |
| Min/Max +/- allowed | 130.5 |
Rapid rating
| Rating | 1142.1 |
| 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 | 1142.1 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1199.7 |
| 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 | 1199.7 |
| 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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Pearson Chess Festival 2026 (B) | Standard | 2026-02-27 | 2026-02-28 | Nelson Mandela Bay (ENM) | 5 | 1348.2 | 5 | 3 | 1275 | 0 | Details |
| 2 | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open) | Standard | 2025-07-11 | 2025-07-12 | Amathole (EAL) | 6 | 1268.3 | 6 | 3 | 1350.7 | 0 | Details |
| 3 | Eastern Cape Inter-Regional Team Chess Championship 2025 (U16) | Standard | 2025-07-10 | 2025-07-11 | Amathole (EAL) | 5 | 1268.3 | 4 | 3 | 1699 | 0 | Details |
| 4 | NMBCU Closed 2025 (U16) | Standard | 2025-06-13 | 2025-06-14 | Nelson Mandela Bay (ENM) | 6 | 1265.6 | 5 | 1 | 1083.2 | 0 | Details |
| 5 | NMBCU Open 2025 (B) | Standard | 2025-05-23 | 2025-05-24 | Nelson Mandela Bay (ENM) | 6 | 1268 | 5 | 1 | 1149.6 | 0 | Details |
| 6 | NMBCU Trial 4 2025 (U16) | Standard | 2025-05-09 | 2025-05-10 | Nelson Mandela Bay (ENM) | 6 | 1268 | 5 | 0.5 | 1079.5 | 0 | Details |
| 7 | NMB 2nd Trials 2025 (U16) | Standard | 2025-03-07 | 2025-03-08 | Nelson Mandela Bay (ENM) | 6 | 1265.8 | 5 | 1.5 | 1056.5 | 0 | Details |
| 8 | Pearson High Chess Festival 2025 (B) | Standard | 2025-02-21 | 2025-02-22 | Nelson Mandela Bay (ENM) | 5 | 1259.8 | 4 | 2 | 1315.3 | 0 | Details |
| 9 | NMBCH Trial 1 2025 (U16) | Standard | 2025-02-14 | 2025-02-15 | Nelson Mandela Bay (ENM) | 6 | 1259.8 | 6 | 2 | 1253.2 | 0 | Details |
| 10 | NMBCU vs BCC Derby Chess Invitational 2025 (Open A) | Standard | 2025-01-10 | 2025-01-11 | Nelson Mandela Bay (ENM) | 5 | 1270.3 | 4 | 0.5 | 1022.5 | 0 | Details |
| 11 | NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A) | Blitz | 2025-01-12 | 2025-01-12 | Nelson Mandela Bay (ENM) | 9 | 1270.3 | 8 | 3 | 1302.3 | 0 | Details |
| 12 | Mzansi Interprovincial Youth Chess Championships 2024 (U14 Open Premier) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1262 | 7 | 3 | 1285.4 | 0 | Details |
| 13 | Grey Junior School Chess Team Championship 2024 (Senior) | Rapid | 2024-11-02 | 2024-11-02 | Nelson Mandela Bay (ENM) | 5 | 1287.7 | 5 | 1 | 1093 | 0 | Details |
| 14 | NMBCU Closed 2024 (U14) | Standard | 2024-09-20 | 2024-09-21 | Nelson Mandela Bay (ENM) | 6 | 1296.6 | 6 | 2.5 | 1255.2 | 0 | Details |
| 15 | NMBCU Trial 5 2024 (U14) | Standard | 2024-08-16 | 2024-08-17 | Nelson Mandela Bay (ENM) | 6 | 1341.1 | 6 | 2 | 1130.1 | 0 | Details |
| 16 | NMBCU Trials 4 2024 (U14) | Standard | 2024-07-12 | 2024-07-13 | Nelson Mandela Bay (ENM) | 6 | 1305.5 | 6 | 3 | 1438.5 | 0 | Details |
| 17 | NMBCU Trial 3 2024 (U14) | Standard | 2024-05-10 | 2024-05-11 | Nelson Mandela Bay (ENM) | 6 | 1303.1 | 5 | 3 | 1308 | 0 | Details |
| 18 | NMBCU Trials 1 2024 (U14) | Standard | 2024-02-16 | 2024-02-16 | Nelson Mandela Bay (ENM) | 6 | 1181.3 | 6 | 3 | 1244.7 | 0 | Details |
| 19 | Pearson Open Chess Tournament 2024 (C) | Standard | 2024-02-23 | 2024-02-24 | Nelson Mandela Bay (ENM) | 5 | 1181.3 | 5 | 4.5 | 1569.8 | 0 | Details |
| 20 | NMBCU Trial 4 2023 (U14) | Standard | 2023-07-28 | 2023-07-29 | Nelson Mandela Bay (ENM) | 6 | 1168 | 5 | 2 | 1242.9 | 0 | Details |
| 21 | EP Trials 3 2023 (U14) | Standard | 2023-05-05 | 2023-05-06 | Nelson Mandela Bay (ENM) | 6 | 1135.1 | 6 | 3 | 1275 | 0 | Details |
| 22 | Youth Chess Acadamy Rapid Tournament 2023 (B) | Rapid | 2023-03-11 | 2023-03-11 | Nelson Mandela Bay (ENM) | 5 | 1147.2 | 4 | 1 | 1002.6 | 0 | Details |
| 23 | NMB 2nd Trials 2023 (U14) | Standard | 2023-03-24 | 2023-03-25 | Nelson Mandela Bay (ENM) | 6 | 1147.2 | 6 | 3 | 1152.1 | 0 | Details |
| 24 | NMB 1st Trials 2023 (U14) | Standard | 2023-02-17 | 2023-02-18 | Nelson Mandela Bay (ENM) | 6 | 1200 | 5 | 1.5 | 936.1 | 0 | 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 | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 3 |
| Black | 2 |
| White wins | 1 |
| Black wins | 2 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1190 |
| Performance | 1275 |
Game statistics (History)
| Games | 129 |
| Wins | 46 |
| Draws | 14 |
| Losses | 69 |
| White | 66 |
| Black | 63 |
| White wins | 25 |
| Black wins | 21 |
| Score | 53 |
| Percent | 41.1 |
| Dp | -75.8 |
| AOR | 1309.4 |
| Performance | 1233.6 |
Rankings (Main)
| National | |
| Overall | 4860 |
| Gender | 4062 |
| Age group | 772 |
| Gender/Age | 596 |
| Provincial | |
| Overall | 512 |
| Gender | 438 |
| Age group | 89 |
| Gender/Age | 78 |
| Regional | |
| Overall | 178 |
| Gender | 155 |
| Age group | 34 |
| Gender/Age | 30 |
Rankings (Standard)
| National | |
| Overall | 4061 |
| Gender | 3390 |
| Age group | 625 |
| Gender/Age | 486 |
| Provincial | |
| Overall | 449 |
| Gender | 382 |
| Age group | 78 |
| Gender/Age | 67 |
| Regional | |
| Overall | 153 |
| Gender | 132 |
| Age group | 28 |
| Gender/Age | 24 |
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 | 5 |
| Score | 3 |
| Percent | 60 |
| Aor | 1190 |
| Dp | 85 |
| Prat | 1275 |
Performance (12 months)
| Games | 35 |
| Score | 13 |
| Percent | 37.1 |
| Aor | 1341.3 |
| Dp | -109.3 |
| Prat | 1232 |
Performance (History)
| Games | 129 |
| Score | 53 |
| Percent | 41.1 |
| Aor | 1309.4 |
| Dp | -75.8 |
| Prat | 1233.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Ranjith, A (Aishwarya) | 5 | 2 | 3 | NMB 2nd Trials 2023 (U14) | Eastern Cape Inter-Regional Team Chess Championship 2025 (U16) | Details |
| Overall | 2 | Botlhole, E (Erato) | 5 | 1 | 4 | NMBCU Trial 3 2024 (U14) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open) | Details |
| Overall | 3 | Ackerdien, S (Saud) | 4 | 1 | 3 | NMB 1st Trials 2023 (U14) | Pearson High Chess Festival 2025 (B) | Details |
| Overall | 4 | Coetzee, S (Schalk) | 4 | 3 | 1 | EP Trials 3 2023 (U14) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open) | Details |
| Overall | 5 | Heneke, R (Ruan) | 4 | 3 | 1 | NMBCU Trial 3 2024 (U14) | NMBCU Open 2025 (B) | Details |
| Standard | 1 | Botlhole, E (Erato) | 5 | 1 | 4 | NMBCU Trial 3 2024 (U14) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open) | Details |
| Standard | 2 | Ranjith, A (Aishwarya) | 4 | 1 | 3 | NMB 2nd Trials 2023 (U14) | Eastern Cape Inter-Regional Team Chess Championship 2025 (U16) | Details |
| Standard | 3 | Ackerdien, S (Saud) | 4 | 1 | 3 | NMB 1st Trials 2023 (U14) | Pearson High Chess Festival 2025 (B) | Details |
| Standard | 4 | Coetzee, S (Schalk) | 3 | 2 | 1 | EP Trials 3 2023 (U14) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Open) | Details |
| Standard | 5 | Coetzee, S (Samual) | 3 | 3 | 0 | NMBCU Trials 4 2024 (U14) | Eastern Cape Inter-Regional Team Chess Championship 2025 (U16) | Details |