PLAYER PAGE
Sibulelo Ngcobo
2150160212King Cetshwayo (KUR)Personal
Main rating
| Rating | 1247.5 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1377.8 (2024-09-01) |
| Min/Max +/- allowed | 129 |
| Rating Change () | |
| Games | 5 |
| Score | 3.5 |
| We | 3.52 |
| SWe | -0.02 |
| Temp +/- | -0.7 |
| Penalties | 0 |
| Weight perform | 1147.5 |
| Final +/- | -0.7 |
| New Rating () | |
| Rating | 1246.8 |
| K-factor | 36 |
| Floor | 871.2 |
| Highest | 1377.8 (2024-09-01) |
| Min/Max +/- allowed | 128.7 |
Standard rating
| Rating | 1257.9 |
| K-factor | 36 |
| Floor | 872 |
| Highest | 1372 (2025-05-05) |
| Min/Max +/- allowed | 129.8 |
| Rating Change () | |
| Games | 5 |
| Score | 3.5 |
| We | 3.65 |
| SWe | -0.15 |
| Temp +/- | -5.5 |
| Penalties | 0 |
| Weight perform | 1184.2 |
| Final +/- | -5.5 |
| New Rating () | |
| Rating | 1252.4 |
| K-factor | 36 |
| Floor | 872 |
| Highest | 1372 (2025-05-05) |
| Min/Max +/- allowed | 129.8 |
Rapid rating
| Rating | 1227.1 |
| K-factor | 36 |
| Floor | 808.6 |
| Highest | 1308.6 (2025-09-01) |
| Min/Max +/- allowed | 142.1 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1063.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1227.1 |
| K-factor | 36 |
| Floor | 808.6 |
| Highest | 1308.6 (2025-09-01) |
| Min/Max +/- allowed | 142.1 |
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 | 4th Annual UNIZULU Chess Tournament 2026 (U12) | Standard | 2026-09-12 | 2026-09-12 | King Cetshwayo (KUR) | 5 | 1247.5 | 5 | 3.5 | 1237.4 | -0.7 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 King Cetshwayo Inter-School Teams (Intermediate Phase) | Rapid | 2026-08-01 | 2026-08-01 | King Cetshwayo (KUR) | 5 | 1247.5 | 4 | 1 | 1119.6 | -14.7 | Details |
| 2 | 2026 KwaZulu Natal Closed Championship (U12 Girls) | Standard | 2026-06-27 | 2026-06-28 | Ethekwini (KED) | 5 | 1270 | 5 | 2.5 | 1219.2 | -7.8 | Details |
| 3 | 2026 King Cetshwayo Winter Open (U10+U12) | Standard | 2026-05-23 | 2026-05-23 | King Cetshwayo (KUR) | 5 | 1309.4 | 5 | 2 | 1180.7 | -21.3 | Details |
| 4 | 2026 King Cetshwayo 1st FIDE Open (B) | Standard | 2026-04-18 | 2026-04-19 | King Cetshwayo (KUR) | 5 | 1309.4 | 5 | 1.5 | 1226.1 | -18.2 | Details |
| 5 | 2026 King Cetshwayo Championship (U12) | Standard | 2026-02-28 | 2026-02-28 | King Cetshwayo (KUR) | 5 | 1305.4 | 5 | 3 | 1320.3 | 4 | Details |
| 6 | 2026 King Cetshwayo Chess Open (U12) | Standard | 2026-02-07 | 2026-02-07 | King Cetshwayo (KUR) | 5 | 1304 | 5 | 3 | 1415.3 | 10.1 | Details |
| 7 | 2025 King Cetshwayo Summer Open (U12) | Standard | 2025-10-25 | 2025-10-25 | King Cetshwayo (KUR) | 5 | 1299.4 | 4 | 2 | 1232.6 | -5.1 | Details |
| 8 | 2025 Umhlathuze Mayoral Cup (U14 Girls) | Standard | 2025-09-20 | 2025-09-20 | King Cetshwayo (KUR) | 5 | 1344.2 | 5 | 2.5 | 1287.1 | -4.8 | Details |
| 9 | 2025 KZN Provincial Trials (U12) | Rapid | 2025-09-06 | 2025-09-06 | Ethekwini (KED) | 6 | 1344.2 | 5 | 0 | 1006.5 | -24.4 | Details |
| 10 | 2025 King Cetshwayo Inter-School Teams Junior Primary (Intermediate) | Rapid | 2025-08-02 | 2025-08-02 | King Cetshwayo (KUR) | 5 | 1332.9 | 4 | 3 | 1441.7 | 6.3 | Details |
| 11 | 2025 King Cetshwayo Winter Open (U12) | Standard | 2025-05-17 | 2025-05-17 | King Cetshwayo (KUR) | 5 | 1371.2 | 4 | 1 | 1098.5 | -21.2 | Details |
| 12 | 2025 King Cetshwayo Anniversary (U12 Girls) | Standard | 2025-04-12 | 2025-04-12 | King Cetshwayo (KUR) | 5 | 1352.9 | 4 | 3 | 1449.4 | 9 | Details |
| 13 | 2025 Kinng Cetshwayo Championship (U12 Girls) | Standard | 2025-03-01 | 2025-03-01 | King Cetshwayo (KUR) | 5 | 1324.1 | 5 | 4 | 1464.2 | 13.1 | Details |
| 14 | 2025 King Cetshwayo Open (U12) | Standard | 2025-02-15 | 2025-02-15 | King Cetshwayo (KUR) | 5 | 1333.8 | 5 | 3 | 1284.3 | -5.3 | Details |
| 15 | 2024 King Cetshwayo Junior & Intermediate Tournament 2024 (U10 Girls) | Standard | 2024-11-02 | 2024-11-02 | King Cetshwayo (KUR) | 5 | 1285.5 | 5 | 4 | 1418.8 | 13.8 | Details |
| 16 | 2024 King Cetswayo Chess Womens Championship (U14) | Rapid | 2024-08-24 | 2024-08-24 | King Cetshwayo (KUR) | 5 | 1264.5 | 5 | 4 | 1434.1 | 11.7 | Details |
| 17 | 2024 Nelson Mandela Chess Tournament (U10) | Standard | 2024-07-20 | 2024-07-29 | King Cetshwayo (KUR) | 5 | 1222.4 | 2 | 2 | 1567.9 | 13.6 | Details |
| 18 | South African Open Chess Championship 2024 (C) | Standard | 2024-07-04 | 2024-07-07 | Ethekwini (KED) | 7 | 1222.4 | 7 | 3.5 | 1291.5 | 9.8 | Details |
| 19 | 2024 King Cetshwayo Winter Open (U10) | Standard | 2024-06-08 | 2024-06-08 | King Cetshwayo (KUR) | 5 | 1206.6 | 5 | 3 | 1289.7 | 8.8 | Details |
| 20 | 2024 King Cesthwayo Chess Anniversary (U10) | Standard | 2024-04-20 | 2024-04-21 | King Cetshwayo (KUR) | 7 | 1133.5 | 7 | 5.5 | 1436.5 | 40.7 | Details |
| 21 | 2024 King Cetshwayo Chess Open (C) | Standard | 2024-02-17 | 2024-02-18 | King Cetshwayo (KUR) | 7 | 1167.9 | 5 | 1 | 963.6 | -19.3 | Details |
| 22 | 2023 King Cetshwayo Junior & Intermediate Chess Tournament (U10) | Rapid | 2023-10-28 | 2023-10-28 | King Cetshwayo (KUR) | 5 | 1154.7 | 5 | 3 | 1279 | 7.5 | Details |
| 23 | UniZulu Tournament 2023 (U10+U12) | Standard | 2023-09-23 | 2023-09-23 | King Cetshwayo (KUR) | 6 | 1216.6 | 5 | 0.5 | 870.9 | -34.5 | Details |
| 24 | 2023 King Cetshwayo Winter Open (U10) | Rapid | 2023-07-29 | 2023-07-29 | King Cetshwayo (KUR) | 6 | 1213.7 | 6 | 3.5 | 1234.8 | 1.6 | Details |
| 25 | 2023 King Cetshwayo Chess Anniversary (U10) | Standard | 2023-04-22 | 2023-04-23 | King Cetshwayo (KUR) | 7 | 1200 | 6 | 3.5 | 1265.9 | 7.8 | 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 | 34 |
| Wins | 15 |
| Draws | 3 |
| Losses | 16 |
| White | 17 |
| Black | 17 |
| White wins | 10 |
| Black wins | 5 |
| Score | 16.5 |
| Percent | 48.5 |
| Dp | -12.5 |
| AOR | 1261.7 |
| Performance | 1249.2 |
Game statistics (History)
| Games | 128 |
| Wins | 64 |
| Draws | 9 |
| Losses | 55 |
| White | 65 |
| Black | 63 |
| White wins | 35 |
| Black wins | 29 |
| Score | 68.5 |
| Percent | 53.5 |
| Dp | 29.9 |
| AOR | 1236.4 |
| Performance | 1266.3 |
Rankings (Main)
| National | |
| Overall | 8631 |
| Gender | 1699 |
| Age group | 1112 |
| Gender/Age | 272 |
| Provincial | |
| Overall | 589 |
| Gender | 106 |
| Age group | 78 |
| Gender/Age | 18 |
| Regional | |
| Overall | 130 |
| Gender | 23 |
| Age group | 17 |
| Gender/Age | 5 |
Rankings (Standard)
| National | |
| Overall | 6909 |
| Gender | 1418 |
| Age group | 889 |
| Gender/Age | 227 |
| Provincial | |
| Overall | 381 |
| Gender | 65 |
| Age group | 51 |
| Gender/Age | 11 |
| Regional | |
| Overall | 98 |
| Gender | 15 |
| Age group | 15 |
| Gender/Age | 4 |
Rankings (Rapid)
| National | |
| Overall | 3677 |
| Gender | 757 |
| Age group | 600 |
| Gender/Age | 148 |
| Provincial | |
| Overall | 403 |
| Gender | 96 |
| Age group | 75 |
| Gender/Age | 22 |
| Regional | |
| Overall | 87 |
| Gender | 20 |
| Age group | 23 |
| Gender/Age | 7 |
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 | 34 |
| Score | 16.5 |
| Percent | 48.5 |
| Aor | 1261.7 |
| Dp | -12.5 |
| Prat | 1249.2 |
Performance (12 months)
| Games | 34 |
| Score | 16.5 |
| Percent | 48.5 |
| Aor | 1261.7 |
| Dp | -12.5 |
| Prat | 1249.2 |
Performance (History)
| Games | 128 |
| Score | 68.5 |
| Percent | 53.5 |
| Aor | 1236.4 |
| Dp | 29.9 |
| Prat | 1266.3 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Simelani, Y (Yali) | 8 | 5 | 3 | 2024 King Cesthwayo Chess Anniversary (U10) | 2026 KwaZulu Natal Closed Championship (U12 Girls) | Details |
| Overall | 2 | Ramdhani, D (Devarsh) | 5 | 2 | 3 | 2023 King Cetshwayo Chess Anniversary (U10) | 2026 King Cetshwayo Inter-School Teams (Intermediate Phase) | Details |
| Overall | 3 | Nkabinde, L (Landile) | 5 | 2 | 3 | 2023 King Cetshwayo Winter Open (U10) | 2026 King Cetshwayo Inter-School Teams (Intermediate Phase) | Details |
| Overall | 4 | Hlophe, M (Mayenziwe) | 4 | 3 | 1 | 2024 King Cetswayo Chess Womens Championship (U14) | 2026 King Cetshwayo 1st FIDE Open (B) | Details |
| Overall | 5 | Kunene, S (Sbongokuhle) | 4 | 1 | 3 | 2024 King Cetshwayo Chess Open (C) | 2026 King Cetshwayo Championship (U12) | Details |
| Standard | 1 | Simelani, Y (Yali) | 7 | 4 | 3 | 2024 King Cesthwayo Chess Anniversary (U10) | 2026 KwaZulu Natal Closed Championship (U12 Girls) | Details |
| Standard | 2 | Kunene, S (Sbongokuhle) | 4 | 1 | 3 | 2024 King Cetshwayo Chess Open (C) | 2026 King Cetshwayo Championship (U12) | Details |
| Standard | 3 | Ramdhani, D (Devarsh) | 3 | 2 | 1 | 2023 King Cetshwayo Chess Anniversary (U10) | 2026 King Cetshwayo Chess Open (U12) | Details |
| Standard | 4 | Musliah, S (Siri) | 3 | 2 | 1 | UniZulu Tournament 2023 (U10+U12) | 2025 King Cetshwayo Anniversary (U12 Girls) | Details |
| Standard | 5 | Hlophe, M (Mayenziwe) | 3 | 2 | 1 | 2025 King Cetshwayo Anniversary (U12 Girls) | 2026 King Cetshwayo 1st FIDE Open (B) | Details |
| Rapid | 1 | Ramdhani, D (Devarsh) | 2 | 0 | 2 | 2023 King Cetshwayo Winter Open (U10) | 2026 King Cetshwayo Inter-School Teams (Intermediate Phase) | Details |
| Rapid | 2 | Nkabinde, L (Landile) | 2 | 1 | 1 | 2023 King Cetshwayo Winter Open (U10) | 2026 King Cetshwayo Inter-School Teams (Intermediate Phase) | Details |