PLAYER PAGE
Personal
Ngubeni, BR (Boitumelo)
Chess SA id
206072373FIDE id
?Date of birth
2006-05-26 (U20)Gender
FemaleRegion
West Rand (GWR)Citizen
RSATitles
Chess SA registered
NoLast active game
2024-07-20Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Raw rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Weighted rating | 1352.4 | 1339 | 809.6 | 809.6 |
| Weighted performance | 947.2 | 947.9 | 0 | 0 |
| Floor | 914.5 | 912.7 | 500 | 500 |
| K-factor | 32 | 32 | 40 | 40 |
| Min/Max rating change allowed | 132.7 | 135.1 | 289.2 | 289.2 |
| Highest rating | 14302023-07-01 | 1428.22023-07-01 | 12002024-03-01 | 12002024-03-01 |
| Highest raw rating | 1414.52023-08-01 | 1412.72023-08-01 | 809.62024-03-01 | 809.62024-03-01 |
| Highest weighted rating | 1414.52024-10-01 | 1412.72024-07-01 | 809.62024-11-01 | 809.62024-11-01 |
| Highest weighted performance | 14302023-07-01 | 1428.22023-07-01 | 12002024-03-01 | 12002024-03-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Analysis | ||||
| Rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Raw rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Weighted rating | 1352.4 | 1339 | 809.6 | |
| Weighted performance | 947.2 | 947.9 | 0 | |
| K-factor | 32 | 32 | 40 | 40 |
| Floor | 914.5 | 912.7 | 500 | 500 |
| Max/Min rating change allowed | 132.7 | 135.1 | 289.2 | 289.2 |
| Games | 0 | 0 | 0 | 0 |
| Score | 0 | 0 | 0 | 0 |
| Expected score | 0 | 0 | 0 | 0 |
| Score-Expected | 0 | 0 | 0 | 0 |
| Temp raw +/- | 0 | 0 | 0 | 0 |
| Final raw +/- | 0 | 0 | 0 | 0 |
| New raw rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| New weighted rating | 1352.1 | 1338.7 | 809.6 | 809.6 |
| New weighted performance | 946.8 | 947.5 | 0 | 0 |
| Temp new rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1356.3 | 1343.9 | 809.6 | 809.6 |
| New K-factor | 32 | 32 | 40 | 40 |
| New floor | 914.5 | 912.7 | 500 | 500 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 5 | 5 | 0 | 0 | |
| 19 | 19 | 0 | 0 | |
| 20 | 20 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 117 | 117 | 0 | 0 |
| Games since | |||||||||||||||||
| Main5 | Standard5 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U20 | ||||||||||||||||
| Region | West Rand (GWR) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Female | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Female | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U20 | -1 | -1 | -1 | ||||||||||||||
| U20 Female | -1 | -1 | -1 | ||||||||||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 84 | 45.5 | 54.17 | 35.4 | 1156.8 | 1192.3 |
| Standard | 84 | 45.5 | 54.17 | 35.4 | 1156.8 | 1192.3 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-09-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-08-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-07-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-06-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-05-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-04-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-03-01 | 1356.3 | 1343.9 | 809.6 | 809.6 |
| 2025-02-01 | 1353.5 | 1340.9 | 809.6 | 809.6 |
| 2025-01-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-12-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-11-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-10-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-09-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-08-01 | 1320.5 | 1301 | 809.6 | 809.6 |
| 2024-07-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-06-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-08-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-04-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-03-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-02-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2024-01-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2023-12-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
| 2023-11-01 | 1391.1 | 1384.2 | 809.6 | 809.6 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | D2 School League Finals 2024 (U19) | 2024-07-20 | 2024-07-20 | Standard | West Rand (GWR) | 5 | 5 | 0 | Yes | Analysis |
| 2 | 2023 Gauteng Top Schools (U19 Girls) | 2023-08-19 | 2023-08-19 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 3 | D2 School League Finals 2023 (U19 Girls) | 2023-07-22 | 2023-07-22 | Standard | West Rand (GWR) | 5 | 4 | 4 | Yes | Analysis |
| 4 | D2 Schools Individuals 2023 (U18 Girls) | 2023-05-13 | 2023-05-13 | Standard | West Rand (GWR) | 5 | 5 | 4 | Yes | Analysis |
| 5 | Gauteng Schools Individual Finals 2023 (U18 Girls) | 2023-05-27 | 2023-05-27 | Standard | Ekurhuleni (GE) | 5 | 5 | 3 | Yes | Analysis |
| 6 | West Rand vs Bojanala 2022 (U18) | 2022-11-05 | 2022-11-05 | Standard | Bojanala Platina (NBR) | 5 | 5 | 2 | Yes | Analysis |
| 7 | West Rand Trials 2022 (U18) | 2022-09-03 | 2022-09-03 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 8 | D2 School League Finals 2022 (U18) | 2022-08-20 | 2022-08-20 | Standard | West Rand (GWR) | 5 | 5 | 3 | Yes | Analysis |
| 9 | 2022 Gauteng Schools Team Championships (U19 Girls) | 2022-08-26 | 2022-08-26 | Standard | Tshwane (GTP) | 5 | 5 | 4.5 | Yes | Analysis |
| 10 | Khutsong Chess Club 2020 (B) | 2020-03-07 | 2020-03-07 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 11 | West Rand Junior Open 2019 (U14) | 2019-08-17 | 2019-08-17 | Standard | West Rand (GWR) | 5 | 5 | 3.5 | Yes | Analysis |
| 12 | D2 League Finals 2019 (U13 Mix) | 2019-08-03 | 2019-08-03 | Standard | West Rand (GWR) | 7 | 6 | 4 | Yes | Analysis |
| 13 | Merafong Schools Individuals 2019 (U13 Girls) | 2019-05-04 | 2019-05-04 | Standard | West Rand (GWR) | 5 | 5 | 2.5 | Yes | Analysis |
| 14 | Khutsong Chess Club Freedom Day 2019 (B) | 2019-04-27 | 2019-04-27 | Standard | West Rand (GWR) | 5 | 4 | 1 | Yes | Analysis |
| 15 | 2018 Gauteng Secondary Schools Individual Chess Championships (U13 Girls) | 2018-05-25 | 2018-05-25 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 16 | Merafong Schools Individuals 2018 (U13 Girls) | 2018-05-05 | 2018-05-05 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 3 | Yes | Analysis |
| 17 | D2 Schools Individuals 2018 (U13 Girls) | 2018-05-19 | 2018-05-19 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 3 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | TournamentD2 School League Finals 2022 | TournamentWest Rand Trials 2022 | ||||||
| date2022-08-20 | rnd4 | typeStandard | result1 | date2022-09-03 | rnd1 | typeStandard | result1 | ||
| OpponentMmbadi, Y (Yedidia) | OpponentMooketsi, G (Goitsemodimo) | ||||||||
| 2 | 5 | TournamentD2 School League Finals 2023 | Tournament2023 Gauteng Top Schools | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2023-08-19 | rnd1 | typeStandard | result1 | ||
| OpponentMartin, M (Modean) | OpponentLetuka, M (Mahadi) | ||||||||
| 3 | 5 | TournamentD2 Schools Individuals 2023 | TournamentGauteng Schools Individual Finals 2023 | ||||||
| date2023-05-13 | rnd3 | typeStandard | result1 | date2023-05-27 | rnd2 | typeStandard | result1 | ||
| OpponentKhanye, A (Atlehang) | OpponentNthle, P (Palesa) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | TournamentD2 School League Finals 2022 | TournamentWest Rand Trials 2022 | ||||||
| date2022-08-20 | rnd4 | typeStandard | result1 | date2022-09-03 | rnd1 | typeStandard | result1 | ||
| OpponentMmbadi, Y (Yedidia) | OpponentMooketsi, G (Goitsemodimo) | ||||||||
| 2 | 5 | TournamentD2 School League Finals 2023 | Tournament2023 Gauteng Top Schools | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2023-08-19 | rnd1 | typeStandard | result1 | ||
| OpponentMartin, M (Modean) | OpponentLetuka, M (Mahadi) | ||||||||
| 3 | 5 | TournamentD2 Schools Individuals 2023 | TournamentGauteng Schools Individual Finals 2023 | ||||||
| date2023-05-13 | rnd3 | typeStandard | result1 | date2023-05-27 | rnd2 | typeStandard | result1 | ||
| OpponentKhanye, A (Atlehang) | OpponentNthle, P (Palesa) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentD2 School League Finals 2023 | Tournament2023 Gauteng Top Schools | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2023-08-19 | rnd1 | typeStandard | result1 | ||
| OpponentMartin, M (Modean) | OpponentLetuka, M (Mahadi) | ||||||||
| 2 | 5 | TournamentD2 Schools Individuals 2023 | TournamentGauteng Schools Individual Finals 2023 | ||||||
| date2023-05-13 | rnd3 | typeStandard | result1 | date2023-05-27 | rnd2 | typeStandard | result1 | ||
| OpponentKhanye, A (Atlehang) | OpponentNthle, P (Palesa) | ||||||||
| 3 | 4 | TournamentD2 School League Finals 2022 | Tournament2022 Gauteng Schools Team Championships | ||||||
| date2022-08-20 | rnd4 | typeStandard | result1 | date2022-08-26 | rnd2 | typeStandard | result1 | ||
| OpponentMmbadi, Y (Yedidia) | OpponentPrinsloo, TE (Thiana) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentD2 School League Finals 2023 | Tournament2023 Gauteng Top Schools | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2023-08-19 | rnd1 | typeStandard | result1 | ||
| OpponentMartin, M (Modean) | OpponentLetuka, M (Mahadi) | ||||||||
| 2 | 5 | TournamentD2 Schools Individuals 2023 | TournamentGauteng Schools Individual Finals 2023 | ||||||
| date2023-05-13 | rnd3 | typeStandard | result1 | date2023-05-27 | rnd2 | typeStandard | result1 | ||
| OpponentKhanye, A (Atlehang) | OpponentNthle, P (Palesa) | ||||||||
| 3 | 4 | TournamentD2 School League Finals 2022 | Tournament2022 Gauteng Schools Team Championships | ||||||
| date2022-08-20 | rnd4 | typeStandard | result1 | date2022-08-26 | rnd2 | typeStandard | result1 | ||
| OpponentMmbadi, Y (Yedidia) | OpponentPrinsloo, TE (Thiana) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
Top 10 opponents most often played
| # | Opponent | Main | Standard | Rapid | Blitz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
| Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
| 1 | Mvundla ,T (Thandiswa) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1039.4 | 614.4 | 1039.3 | 614.4 | 0 | 0 | 0 | 0 | ||||||
| 2 | Khutshwa ,N (Ntombizikhona) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1067.7 | 926 | 1073.4 | 926 | 0 | 0 | 0 | 0 | ||||||
| 3 | Maseko ,U (Unathi) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1309.4 | 1167.7 | 1305.8 | 1167.7 | 0 | 0 | 0 | 0 | ||||||
| 4 | Ngwenya ,TF (Thato) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1207.8 | 1207.8 | 1225.7 | 1207.8 | 0 | 0 | 0 | 0 | ||||||
| 5 | Prinsloo ,TE (Thiana Eurika) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1243.5 | 1243.5 | 1242.8 | 1243.5 | 0 | 0 | 0 | 0 | ||||||
| 6 | Marumole ,V (Vuyokazi) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1108.3 | 1533.3 | 1094.6 | 1533.3 | 0 | 0 | 0 | 0 | ||||||
| 7 | Msiwa ,N (Nokuthula) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1489.2 | 1064.2 | 1481.9 | 1064.2 | 0 | 0 | 0 | 0 | ||||||
| 8 | Khanye ,A (Atlehang) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 9 | Mathenjwa ,U (Uyanda) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 10 | Martin ,M (Modean) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1181.8 | 1606.8 | 1178 | 1606.8 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|