PLAYER PAGE
Declan Platen
1050157066Cape Town (WCT)Personal
Main rating
| Rating | 1588.7 |
| K-factor | 28 |
| Floor | 1101.1 |
| Highest | 1601.1 (2025-11-01) |
| Min/Max +/- allowed | 94 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1463.4 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1588.7 |
| K-factor | 28 |
| Floor | 1101.1 |
| Highest | 1601.1 (2025-11-01) |
| Min/Max +/- allowed | 93.6 |
Standard rating
| Rating | 1587.5 |
| K-factor | 32 |
| Floor | 1087.5 |
| Highest | 1587.5 (2025-11-01) |
| Min/Max +/- allowed | 95.5 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1383.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1587.5 |
| K-factor | 32 |
| Floor | 1087.5 |
| Highest | 1587.5 (2025-11-01) |
| Min/Max +/- allowed | 95.5 |
Rapid rating
| Rating | 1484.7 |
| K-factor | 32 |
| Floor | 984.7 |
| Highest | 1490.5 (2026-01-01) |
| Min/Max +/- allowed | 109.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1532.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1484.7 |
| K-factor | 32 |
| Floor | 984.7 |
| Highest | 1490.5 (2026-01-01) |
| Min/Max +/- allowed | 109.6 |
Blitz rating
| Rating | 1197.2 |
| 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 | 1197.2 |
| 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 | Four Seasons Summer Slam 2025 (Championship) | Rapid | 2025-12-10 | 2025-12-10 | Cape Town (WCT) | 6 | 1601.1 | 6 | 3 | 1863.9 | 0 | Details |
| 2 | Royal Alphas Chess Club Club Championship 2025 (Invitational Rapid) | Rapid | 2025-11-30 | 2025-11-30 | Cape Town (WCT) | 7 | 1601.1 | 7 | 0 | 1346.3 | 0 | Details |
| 3 | Royal Alphas Chess Club Club Championship 2025 (Invitational Blitz) | Blitz | 2025-11-30 | 2025-11-30 | Cape Town (WCT) | 7 | 1601.1 | 6 | 1 | 1517.5 | 0 | Details |
| 4 | Cape Town Chess Federation Club League 2025 (A) | Classical | 2025-07-26 | 2025-09-27 | Cape Town (WCT) | 11 | 1580.4 | 4 | 3 | 1725.7 | 0 | Details |
| 5 | Cape Town Chess Federation Club League 2025 (B) | Classical | 2025-07-26 | 2025-09-27 | Cape Town (WCT) | 11 | 1580.4 | 5 | 1.5 | 1597 | 0 | Details |
| 6 | 4th Curro Durbanville Rapid Open 2025 (Advanced) | Rapid | 2025-07-19 | 2025-07-19 | Cape Town (WCT) | 7 | 1567.3 | 4 | 3 | 1750.1 | 0 | Details |
| 7 | Rylib Autumn Slam 2025 (Intermediate) | Rapid | 2025-04-26 | 2025-04-26 | Cape Town (WCT) | 6 | 1567.3 | 0 | 0 | 0 | 0 | Details |
| 8 | Cape Town Open Chess Festival 2025 (B) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1515.3 | 6 | 5 | 1781.8 | 0 | Details |
| 9 | Cape Town Open Chess Festival 2025 (Team Blitz) | Blitz | 2025-03-21 | 2025-03-21 | Cape Town (WCT) | 6 | 1515.3 | 5 | 0 | 1262.4 | 0 | Details |
| 10 | Steinitz Festival 2025 (Open) | Rapid | 2025-03-15 | 2025-03-15 | Cape Town (WCT) | 7 | 1515.3 | 7 | 4.5 | 1630.6 | 0 | Details |
| 11 | Steinitz Festival 2025 (Blitz) | Blitz | 2025-03-14 | 2025-03-14 | Cape Town (WCT) | 7 | 1515.3 | 7 | 3 | 1402.6 | 0 | Details |
| 12 | 2025 Kraaifontein Open Chess Championships (Championship) | Standard | 2025-01-04 | 2025-01-05 | Cape Town (WCT) | 5 | 1509.5 | 5 | 1.5 | 1562.3 | 0 | Details |
| 13 | Rylib Summer Slam 2024 (Intermediate) | Rapid | 2024-12-03 | 2024-12-03 | Cape Town (WCT) | 6 | 1486.6 | 6 | 4.5 | 1701.3 | 0 | Details |
| 14 | UCT Open Chess Championship 2024 (Advanced) | Standard | 2024-10-12 | 2024-10-13 | Cape Town (WCT) | 5 | 1514.3 | 5 | 2.5 | 1405.6 | 0 | Details |
| 15 | Spring Slam 2024 (A) | Rapid | 2024-10-05 | 2024-10-05 | Cape Town (WCT) | 6 | 1514.3 | 6 | 2.5 | 1460.4 | 0 | Details |
| 16 | CT League 2024 (C) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1446.7 | 6 | 5.5 | 1797.3 | 0 | Details |
| 17 | CT League 2024 (C) | Classical | 2024-07-20 | 2024-09-07 | Cape Town (WCT) | 11 | 1446.7 | 5 | 2 | 1358.1 | 0 | Details |
| 18 | Rylib Winter Slam 2024 (Championship) | Rapid | 2024-06-19 | 2024-06-19 | Cape Town (WCT) | 6 | 1456.9 | 6 | 2 | 1549.2 | 0 | Details |
| 19 | Cape Town Chess Federation Closed Chess Championships 2024 (U20) | Standard | 2024-06-15 | 2024-06-16 | Cape Town (WCT) | 5 | 1456.9 | 4 | 1.5 | 1310.4 | 0 | Details |
| 20 | Steinitz Chess Festival 2024 (Open) | Standard | 2024-05-10 | 2024-05-12 | Cape Town (WCT) | 6 | 1398.7 | 5 | 4 | 1683.8 | 0 | Details |
| 21 | Cape Town Open Chess Championship 2024 (Intermediate) | Standard | 2024-03-16 | 2024-03-17 | Cape Town (WCT) | 6 | 1359.2 | 6 | 5 | 1536.1 | 0 | Details |
| 22 | Rylib Summer Slam 2023 (Intermediate) | Rapid | 2023-12-12 | 2023-12-12 | Cape Town (WCT) | 6 | 1373.7 | 6 | 3 | 1307.9 | 0 | Details |
| 23 | Kraaifontein Open 2023 (Intermediate) | Standard | 2023-12-09 | 2023-12-10 | Cape Town (WCT) | 6 | 1373.7 | 6 | 3.5 | 1343.8 | 0 | Details |
| 24 | WP Club League 2023 (C) | Classical | 2023-07-29 | 2023-09-09 | Cape Town (WCT) | 11 | 1277.7 | 2 | 1.5 | 1433 | 0 | Details |
| 25 | WP Club League 2023 (D PlayOffs) | Standard | 2023-09-02 | 2023-09-09 | Cape Town (WCT) | 5 | 1277.7 | 5 | 5 | 1721.4 | 0 | Details |
| 26 | WP Club League 2023 (D1) | Standard | 2023-07-29 | 2023-08-19 | Cape Town (WCT) | 6 | 1210 | 6 | 5.5 | 1504.3 | 0 | Details |
| 27 | Steinitz Open 2023 (D) | Rapid | 2023-05-27 | 2023-05-27 | Cape Town (WCT) | 6 | 1200 | 6 | 3 | 1273 | 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 | 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 (History)
| Games | 142 |
| Wins | 68 |
| Draws | 17 |
| Losses | 57 |
| White | 76 |
| Black | 77 |
| White wins | 44 |
| Black wins | 30 |
| Score | 76.5 |
| Percent | 53.9 |
| Dp | 32.9 |
| AOR | 1498.3 |
| Performance | 1531.3 |
Rankings (Main)
| National | |
| Overall | 1041 |
| Gender | 958 |
| Age group | 490 |
| Gender/Age | 467 |
| Provincial | |
| Overall | 310 |
| Gender | 284 |
| Age group | 146 |
| Gender/Age | 138 |
| Regional | |
| Overall | 204 |
| Gender | 189 |
| Age group | 110 |
| Gender/Age | 104 |
Rankings (Standard)
| National | |
| Overall | 959 |
| Gender | 878 |
| Age group | 442 |
| Gender/Age | 422 |
| Provincial | |
| Overall | 264 |
| Gender | 238 |
| Age group | 127 |
| Gender/Age | 120 |
| Regional | |
| Overall | 185 |
| Gender | 172 |
| Age group | 99 |
| Gender/Age | 94 |
Rankings (Rapid)
| National | |
| Overall | 362 |
| Gender | 339 |
| Age group | 137 |
| Gender/Age | 133 |
| Provincial | |
| Overall | 182 |
| Gender | 166 |
| Age group | 57 |
| Gender/Age | 54 |
| Regional | |
| Overall | 100 |
| Gender | 95 |
| Age group | 37 |
| Gender/Age | 34 |
Rankings (Blitz)
| National | |
| Overall | 485 |
| Gender | 435 |
| Age group | 208 |
| Gender/Age | 199 |
| Provincial | |
| Overall | 159 |
| Gender | 145 |
| Age group | 78 |
| Gender/Age | 72 |
| Regional | |
| Overall | 57 |
| Gender | 53 |
| Age group | 29 |
| Gender/Age | 26 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 57 |
| Score | 24 |
| Percent | 42.1 |
| Aor | 1643.2 |
| Dp | -67.1 |
| Prat | 1576.1 |
Performance (History)
| Games | 142 |
| Score | 76.5 |
| Percent | 53.9 |
| Aor | 1498.3 |
| Dp | 32.9 |
| Prat | 1531.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Rogov, E (Evgenij) | 4 | 1 | 3 | UCT Open Chess Championship 2024 (Advanced) | Four Seasons Summer Slam 2025 (Championship) | Details |
| Overall | 2 | Hartley, A (Ameen) | 3 | 3 | 0 | Rylib Summer Slam 2023 (Intermediate) | Royal Alphas Chess Club Club Championship 2025 (Invitational Rapid) | Details |
| Overall | 3 | De Kock, W (Wade) | 3 | 3 | 0 | UCT Open Chess Championship 2024 (Advanced) | Royal Alphas Chess Club Club Championship 2025 (Invitational Rapid) | Details |
| Overall | 4 | Mahomed, A (Amaan) | 2 | 2 | 0 | Steinitz Festival 2025 (Blitz) | Cape Town Open Chess Festival 2025 (B) | Details |
| Overall | 5 | Salem, A (Abdarahim) | 2 | 1 | 1 | Cape Town Chess Federation Club League 2025 (B) | Four Seasons Summer Slam 2025 (Championship) | Details |
| Standard | 1 | Mhembere, M (Munashe) | 2 | 1 | 1 | Cape Town Chess Federation Club League 2025 (B) | Cape Town Chess Federation Club League 2025 (A) | Details |
| Standard | 2 | Du Plessis, N (Neville) | 2 | 1 | 1 | CT League 2024 (C) | CT League 2024 (C) | Details |
| Rapid | 1 | Mfazwe, L (Lutho) | 2 | 0 | 2 | Spring Slam 2024 (A) | Four Seasons Summer Slam 2025 (Championship) | Details |
| Rapid | 2 | Bowers, C (Chad) | 2 | 2 | 0 | Spring Slam 2024 (A) | 4th Curro Durbanville Rapid Open 2025 (Advanced) | Details |
| Rapid | 3 | Mackinna, C (Cashlin) | 2 | 1 | 1 | Rylib Summer Slam 2024 (Intermediate) | Royal Alphas Chess Club Club Championship 2025 (Invitational Rapid) | Details |
| Rapid | 4 | Singh, S (Shaurya) | 2 | 1 | 1 | Spring Slam 2024 (A) | Steinitz Festival 2025 (Open) | Details |
| Rapid | 5 | Rogov, E (Evgenij) | 2 | 1 | 1 | Royal Alphas Chess Club Club Championship 2025 (Invitational Rapid) | Four Seasons Summer Slam 2025 (Championship) | Details |