PLAYER PAGE
Bulumko Ndumela
2150153083Sarah Baartman (ESB)Personal
Main rating
| Rating | 1421.9 |
| K-factor | 32 |
| Floor | 973.9 |
| Highest | 1473.9 (2025-06-01) |
| Min/Max +/- allowed | 112 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1366.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1421.9 |
| K-factor | 32 |
| Floor | 973.9 |
| Highest | 1473.9 (2025-06-01) |
| Min/Max +/- allowed | 112.2 |
Standard rating
| Rating | 1433.7 |
| K-factor | 32 |
| Floor | 976 |
| Highest | 1476 (2025-06-01) |
| Min/Max +/- allowed | 111.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1366.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1433.7 |
| K-factor | 32 |
| Floor | 976 |
| Highest | 1476 (2025-06-01) |
| Min/Max +/- allowed | 111.9 |
Rapid rating
| Rating | 1327 |
| K-factor | 36 |
| Floor | 847.7 |
| Highest | 1433.2 (2024-08-01) |
| Min/Max +/- allowed | 118.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1327 |
| K-factor | 36 |
| Floor | 847.7 |
| Highest | 1433.2 (2024-08-01) |
| Min/Max +/- allowed | 118.9 |
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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | SBDCA Trial 4 2026 (U12) | Standard | 2026-02-14 | 2026-02-14 | Sarah Baartman (ESB) | 5 | 1443.3 | 5 | 3 | 1314.2 | 0 | Details |
| 2 | EC Closed 2025 (U12 Girls) | Standard | 2025-09-06 | 2025-09-07 | Nelson Mandela Bay (ENM) | 6 | 1449.7 | 6 | 4 | 1417.5 | 0 | Details |
| 3 | Holiday Fever 2025 (C) | Rapid | 2025-06-21 | 2025-06-21 | Sarah Baartman (ESB) | 10 | 1473.9 | 6 | 2.5 | 1195.5 | 0 | Details |
| 4 | SBDCA Closed 2025 (U12 Girls) | Standard | 2025-05-10 | 2025-05-10 | Sarah Baartman (ESB) | 6 | 1370.7 | 6 | 6 | 1688.5 | 0 | Details |
| 5 | SBD Trials J Bay 19 April 2025 (U12) | Standard | 2025-04-19 | 2025-04-19 | Sarah Baartman (ESB) | 6 | 1325.3 | 6 | 4 | 1412 | 0 | Details |
| 6 | Kouga Mayor's Cup Final 2025 (U11) | Standard | 2025-04-12 | 2025-04-12 | Sarah Baartman (ESB) | 6 | 1325.3 | 6 | 4 | 1474.4 | 0 | Details |
| 7 | South African Junior Closed Chess Championships 2025 (U10 Girls) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1325.3 | 9 | 4 | 1309.1 | 0 | Details |
| 8 | Kouga Mayor's Cup 2025 (U11) | Standard | 2025-03-08 | 2025-03-08 | Sarah Baartman (ESB) | 6 | 1338.5 | 6 | 3 | 1288 | 0 | Details |
| 9 | SBDCU Trials 3 2025 (U12) | Standard | 2025-02-08 | 2025-02-08 | Sarah Baartman (ESB) | 6 | 1370.9 | 6 | 3 | 1217.6 | 0 | Details |
| 10 | 2025 SBDCU Trial 2 JBay (U12) | Standard | 2025-01-25 | 2025-01-25 | Sarah Baartman (ESB) | 5 | 1391.7 | 5 | 3 | 1265.1 | 0 | Details |
| 11 | Sarah Baartman District Schools Trials 2024 (U9 Girls) | Rapid | 2024-08-03 | 2024-08-03 | Sarah Baartman (ESB) | 5 | 1377.2 | 4 | 3.5 | 1484.7 | 0 | Details |
| 12 | SBDCU Closed Trials 2024 (U10 Girls) | Standard | 2024-07-27 | 2024-07-27 | Sarah Baartman (ESB) | 5 | 1360 | 4 | 4 | 1478.6 | 0 | Details |
| 13 | SBDCU Trial 3 2024 (U10) | Standard | 2024-06-01 | 2024-06-01 | Sarah Baartman (ESB) | 5 | 1359.4 | 5 | 3.5 | 1353.7 | 0 | Details |
| 14 | Fountains Mall 2024 (Development) | Standard | 2024-05-18 | 2024-05-18 | Sarah Baartman (ESB) | 6 | 1346.8 | 6 | 3 | 1312.4 | 0 | Details |
| 15 | Humansdorp CMC Schools Trials 2024 (U9 Girls) | Rapid | 2024-05-10 | 2024-05-10 | Sarah Baartman (ESB) | 6 | 1346.8 | 5 | 5 | 1516.2 | 0 | Details |
| 16 | Stulting Tournament 2024 (Junior) | Rapid | 2024-04-06 | 2024-04-06 | Sarah Baartman (ESB) | 6 | 1299.1 | 6 | 3.5 | 1299.6 | 0 | Details |
| 17 | Kouga Mayor's Cup Final 2024 (U9) | Standard | 2024-04-13 | 2024-04-13 | Sarah Baartman (ESB) | 5 | 1299.1 | 5 | 3.5 | 1434.3 | 0 | Details |
| 18 | Kouga Mayor's Cup 2024 (U9) | Standard | 2024-03-09 | 2024-03-09 | Sarah Baartman (ESB) | 6 | 1235.6 | 6 | 5 | 1523.1 | 0 | Details |
| 19 | SBDCU Trial 1 2024 (U10) | Standard | 2024-02-24 | 2024-02-24 | Sarah Baartman (ESB) | 6 | 1154 | 6 | 5 | 1498.7 | 0 | Details |
| 20 | Stulting Sportdag 2023 (Junior) | Rapid | 2023-08-25 | 2023-08-25 | Sarah Baartman (ESB) | 5 | 1138.6 | 5 | 3 | 1241.1 | 0 | Details |
| 21 | SBDCU Trial 3 2023 (U10) | Standard | 2023-06-24 | 2023-06-24 | Sarah Baartman (ESB) | 7 | 1124.7 | 7 | 3 | 1170.6 | 0 | Details |
| 22 | SBDCU Trial 2 2023 (U10) | Standard | 2023-04-01 | 2023-04-01 | Sarah Baartman (ESB) | 5 | 1200 | 5 | 2.5 | 1174.7 | 0 | Details |
| 23 | Kouga Mayor's Cup 2023 (U9) | Standard | 2023-04-15 | 2023-04-15 | Sarah Baartman (ESB) | 6 | 1200 | 6 | 1 | 907.9 | 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 | 3 |
| Black wins | 0 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1229.2 |
| Performance | 1314.2 |
Game statistics (History)
| Games | 131 |
| Wins | 78 |
| Draws | 8 |
| Losses | 45 |
| White | 66 |
| Black | 65 |
| White wins | 42 |
| Black wins | 36 |
| Score | 82 |
| Percent | 62.6 |
| Dp | 107.1 |
| AOR | 1234.4 |
| Performance | 1341.5 |
Rankings (Main)
| National | |
| Overall | 2883 |
| Gender | 422 |
| Age group | 204 |
| Gender/Age | 41 |
| Provincial | |
| Overall | 319 |
| Gender | 44 |
| Age group | 29 |
| Gender/Age | 6 |
| Regional | |
| Overall | 75 |
| Gender | 11 |
| Age group | 9 |
| Gender/Age | 2 |
Rankings (Standard)
| National | |
| Overall | 2420 |
| Gender | 349 |
| Age group | 176 |
| Gender/Age | 34 |
| Provincial | |
| Overall | 278 |
| Gender | 37 |
| Age group | 26 |
| Gender/Age | 5 |
| Regional | |
| Overall | 64 |
| Gender | 8 |
| Age group | 8 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 1538 |
| Gender | 251 |
| Age group | 169 |
| Gender/Age | 33 |
| Provincial | |
| Overall | 143 |
| Gender | 19 |
| Age group | 15 |
| Gender/Age | 3 |
| Regional | |
| Overall | 50 |
| Gender | 9 |
| Age group | 6 |
| Gender/Age | 2 |
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 | 1229.2 |
| Dp | 85 |
| Prat | 1314.2 |
Performance (12 months)
| Games | 50 |
| Score | 30.5 |
| Percent | 61 |
| Aor | 1290.7 |
| Dp | 93.5 |
| Prat | 1384.2 |
Performance (History)
| Games | 131 |
| Score | 82 |
| Percent | 62.6 |
| Aor | 1234.4 |
| Dp | 107.1 |
| Prat | 1341.5 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Mfabana, A (Alunamda) | 5 | 4 | 1 | SBDCU Trial 3 2023 (U10) | SBD Trials J Bay 19 April 2025 (U12) | Details |
| Overall | 2 | Retief, M (Marize) | 4 | 2 | 2 | Fountains Mall 2024 (Development) | Sarah Baartman District Schools Trials 2024 (U9 Girls) | Details |
| Overall | 3 | Kettledas, JF (Jerrin Fagan) | 4 | 1 | 3 | Kouga Mayor's Cup 2023 (U9) | Stulting Tournament 2024 (Junior) | Details |
| Overall | 4 | Stofile, I (Imkhitha Zidan) | 4 | 3 | 1 | SBDCU Trial 1 2024 (U10) | Fountains Mall 2024 (Development) | Details |
| Overall | 5 | Swart, W (Waldemar) | 4 | 3 | 1 | Kouga Mayor's Cup 2024 (U9) | Fountains Mall 2024 (Development) | Details |
| Standard | 1 | Mfabana, A (Alunamda) | 5 | 4 | 1 | SBDCU Trial 3 2023 (U10) | SBD Trials J Bay 19 April 2025 (U12) | Details |
| Standard | 2 | Stofile, I (Imkhitha Zidan) | 4 | 3 | 1 | SBDCU Trial 1 2024 (U10) | Fountains Mall 2024 (Development) | Details |
| Standard | 3 | Retief, M (Marize) | 3 | 2 | 1 | Fountains Mall 2024 (Development) | SBDCU Closed Trials 2024 (U10 Girls) | Details |
| Standard | 4 | Louis, K (Keanu) | 3 | 2 | 1 | 2025 SBDCU Trial 2 JBay (U12) | SBD Trials J Bay 19 April 2025 (U12) | Details |
| Standard | 5 | Lindiwe, S (Somila) | 3 | 1 | 2 | SBDCU Trials 3 2025 (U12) | SBDCA Closed 2025 (U12 Girls) | Details |
| Rapid | 1 | Swart, D (Daniella) | 2 | 2 | 0 | Stulting Tournament 2024 (Junior) | Humansdorp CMC Schools Trials 2024 (U9 Girls) | Details |
| Rapid | 2 | Ferreira, R (Rossouw) | 2 | 0 | 2 | Stulting Sportdag 2023 (Junior) | Stulting Tournament 2024 (Junior) | Details |
| Rapid | 3 | Ntlomose, A (Andile) | 2 | 1 | 1 | Holiday Fever 2025 (C) | Holiday Fever 2025 (C) | Details |
| Rapid | 4 | Piko, L (Likhona) | 2 | 1 | 1 | Holiday Fever 2025 (C) | Holiday Fever 2025 (C) | Details |
| Rapid | 5 | Titus, S (Sade Catherine) | 2 | 1 | 1 | Holiday Fever 2025 (C) | Holiday Fever 2025 (C) | Details |