PLAYER PAGE
Joanna Chukwuma
2150147833Ethekwini (KED)Personal
Main rating
| Rating | 1427.2 |
| K-factor | 32 |
| Floor | 927.2 |
| Highest | 1427.2 (2026-09-01) |
| Min/Max +/- allowed | 120 |
| Rating Change () | |
| Games | 17 |
| Score | 13.5 |
| We | 11.41 |
| SWe | 1.43 |
| Temp +/- | 45.8 |
| Penalties | 0 |
| Weight perform | 1458.4 |
| Final +/- | +45.8 |
| New Rating () | |
| Rating | 1472.9 |
| K-factor | 32 |
| Floor | 972.9 |
| Highest | 1472.9 (2026-10-01) |
| Min/Max +/- allowed | 112.4 |
Standard rating
| Rating | 1413.5 |
| K-factor | 32 |
| Floor | 913.5 |
| Highest | 1413.5 (2026-08-01) |
| Min/Max +/- allowed | 122.3 |
| Rating Change () | |
| Games | 10 |
| Score | 7.5 |
| We | 6.46 |
| SWe | 1.04 |
| Temp +/- | 33.4 |
| Penalties | 0 |
| Weight perform | 1442 |
| Final +/- | +33.4 |
| New Rating () | |
| Rating | 1446.9 |
| K-factor | 32 |
| Floor | 946.9 |
| Highest | 1446.9 (2026-10-01) |
| Min/Max +/- allowed | 116.6 |
Rapid rating
| Rating | 1479.3 |
| K-factor | 32 |
| Floor | 1016.4 |
| Highest | 1516.4 (2025-03-01) |
| Min/Max +/- allowed | 105.6 |
| Rating Change () | |
| Games | 7 |
| Score | 6 |
| We | 5.59 |
| SWe | 0.41 |
| Temp +/- | 13 |
| Penalties | 0 |
| Weight perform | 1416.2 |
| Final +/- | +13 |
| New Rating () | |
| Rating | 1492.3 |
| K-factor | 32 |
| Floor | 1016.4 |
| Highest | 1516.4 (2025-03-01) |
| Min/Max +/- allowed | 105.6 |
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 | 2026 KwaZulu Natal Closed II (U12 Girls) | Standard | 2026-09-26 | 2026-09-27 | Ethekwini (KED) | 5 | 1427.2 | 5 | 4 | 1545.5 | 20.4 | Details |
| 2 | 2026 Durban and District Senior Primary Open (U12 Girls) | Rapid | 2026-09-12 | 2026-09-12 | Ethekwini (KED) | 7 | 1427.2 | 7 | 6 | 1568.1 | 19.7 | Details |
| 3 | 2026 Cygnet Prep School (U12) | Standard | 2026-08-29 | 2026-08-29 | Ethekwini (KED) | 5 | 1427.2 | 5 | 3.5 | 1421.1 | 5.7 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 St Henry's Marist College Girls Chess Tournament (Senior Primary) | Rapid | 2026-08-08 | 2026-08-08 | iLembe (KIK) | 6 | 1427.2 | 6 | 5 | 1475.7 | 12.3 | Details |
| 2 | 2026 KwaZulu Natal Closed Championship (U12 Girls) | Standard | 2026-06-27 | 2026-06-28 | Ethekwini (KED) | 5 | 1409.3 | 5 | 3.5 | 1449.2 | 5.5 | Details |
| 3 | 2026 KwaZulu Natal Open (D) | Standard | 2026-05-01 | 2026-05-03 | Ethekwini (KED) | 7 | 1384.8 | 7 | 4.5 | 1477.1 | 24.2 | Details |
| 4 | 2026 Ukuthula Trust Chess Tournament (U12) | Standard | 2026-03-14 | 2026-03-14 | Ethekwini (KED) | 5 | 1369.1 | 5 | 3.5 | 1462.1 | 15.8 | Details |
| 5 | 2025 Mzansi Individual Championships (U12 Girls) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1335.4 | 4 | 3 | 1436.7 | 9.6 | Details |
| 6 | 2025 Mzansi Inter Provincial Team Championships (U12 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1335.4 | 6 | 2.5 | 1435.1 | 11.5 | Details |
| 7 | 2025 Westville Primary Chess Tournament (Senior Primary) | Rapid | 2025-09-06 | 2025-09-06 | Ethekwini (KED) | 7 | 1326.2 | 0 | 0 | 0 | 0 | Details |
| 8 | 2025 KZN Provincial Trials (U12) | Rapid | 2025-09-06 | 2025-09-06 | Ethekwini (KED) | 6 | 1326.2 | 5 | 2 | 1402.2 | 5.8 | Details |
| 9 | 2025 Ethekwini Open (B) | Standard | 2025-03-21 | 2025-03-22 | Ethekwini (KED) | 6 | 1422.3 | 4 | 1 | 1008.6 | -32.2 | Details |
| 10 | 2025 Eyethu Chess Academy Tournament (U12) | Standard | 2025-03-15 | 2025-03-15 | Ethekwini (KED) | 5 | 1422.3 | 5 | 2 | 1126.9 | -27.9 | Details |
| 11 | 2025 Westville Girls High School Rapid (U12) | Rapid | 2025-02-22 | 2025-02-22 | Ethekwini (KED) | 6 | 1334.3 | 6 | 6 | 1727.3 | 26.2 | Details |
| 12 | Westville Chess Club Rapid Rated February 2025 | Rapid | 2025-02-08 | 2025-02-08 | Ethekwini (KED) | 5 | 1334.3 | 5 | 3 | 1370.8 | 1.7 | Details |
| 13 | Westville Chess Club Tournament 2025 (Senior Primay) | Standard | 2025-02-01 | 2025-02-01 | Ethekwini (KED) | 5 | 1334.3 | 5 | 3 | 1333.9 | -0.7 | Details |
| 14 | Westville Rapid Rated Chess Tournament 2 2024 (Junior Primary) | Rapid | 2024-11-30 | 2024-11-30 | Ethekwini (KED) | 5 | 1318.2 | 5 | 4 | 1466.6 | 9.1 | Details |
| 15 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | Rapid | 2024-09-07 | 2024-09-07 | Ethekwini (KED) | 7 | 1289.6 | 7 | 5.5 | 1472.3 | 16 | Details |
| 16 | St Henry's Marist College Inuagural Girls Open Chess Tournament 2024 | Rapid | 2024-08-17 | 2024-08-17 | Ethekwini (KED) | 6 | 1260.8 | 6 | 5 | 1469.3 | 16.1 | Details |
| 17 | St James School Rapid Rated Chess Tournament 2024 (Junior Primary) | Rapid | 2024-07-20 | 2024-07-20 | Ethekwini (KED) | 6 | 1186.3 | 6 | 3.5 | 1319.4 | 10.2 | Details |
| 18 | Durban & Districts Chess Challenge 2024 (U8+U10) | Rapid | 2024-06-08 | 2024-06-08 | Ethekwini (KED) | 7 | 1186.3 | 7 | 5 | 1465.2 | 27.3 | Details |
| 19 | St James Rapid Rated Tournament 2023 (Junior) | Rapid | 2023-08-26 | 2023-08-26 | Ethekwini (KED) | 5 | 1172.2 | 5 | 3 | 1309 | 7.2 | Details |
| 20 | Umhlali Preparatory Rapid 2023 (Junior Primary) | Rapid | 2023-05-20 | 2023-05-20 | iLembe (KIK) | 5 | 1149.2 | 5 | 3 | 1319.2 | 11.5 | Details |
| 21 | Westville Senior Primary School Individual Invitational Chess Tournament 2023 (Junior Primary) | Rapid | 2023-04-22 | 2023-04-22 | Ethekwini (KED) | 7 | 1149.2 | 0 | 0 | 0 | 0 | Details |
| 22 | 2nd Durban Trials 2022 | Standard | 2022-11-05 | 2022-11-05 | Ethekwini (KED) | 6 | 1200 | 3 | 0 | 755.9 | -25.4 | 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 | 40 |
| Wins | 26 |
| Draws | 8 |
| Losses | 6 |
| White | 19 |
| Black | 21 |
| White wins | 13 |
| Black wins | 13 |
| Score | 30 |
| Percent | 75 |
| Dp | 212.5 |
| AOR | 1276.5 |
| Performance | 1489 |
Game statistics (History)
| Games | 124 |
| Wins | 75 |
| Draws | 13 |
| Losses | 36 |
| White | 63 |
| Black | 61 |
| White wins | 39 |
| Black wins | 36 |
| Score | 81.5 |
| Percent | 65.7 |
| Dp | 133.7 |
| AOR | 1273.8 |
| Performance | 1407.4 |
Rankings (Main)
| National | |
| Overall | 3049 |
| Gender | 446 |
| Age group | 261 |
| Gender/Age | 57 |
| Provincial | |
| Overall | 200 |
| Gender | 24 |
| Age group | 18 |
| Gender/Age | 3 |
| Regional | |
| Overall | 145 |
| Gender | 17 |
| Age group | 11 |
| Gender/Age | 2 |
Rankings (Standard)
| National | |
| Overall | 2939 |
| Gender | 478 |
| Age group | 278 |
| Gender/Age | 62 |
| Provincial | |
| Overall | 176 |
| Gender | 22 |
| Age group | 19 |
| Gender/Age | 3 |
| Regional | |
| Overall | 125 |
| Gender | 16 |
| Age group | 11 |
| Gender/Age | 2 |
Rankings (Rapid)
| National | |
| Overall | 516 |
| Gender | 47 |
| Age group | 46 |
| Gender/Age | 9 |
| Provincial | |
| Overall | 43 |
| Gender | 3 |
| Age group | 5 |
| Gender/Age | 1 |
| Regional | |
| Overall | 39 |
| Gender | 3 |
| Age group | 4 |
| 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 | 40 |
| Score | 30 |
| Percent | 75 |
| Aor | 1276.5 |
| Dp | 212.5 |
| Prat | 1489 |
Performance (12 months)
| Games | 50 |
| Score | 35.5 |
| Percent | 71 |
| Aor | 1299.9 |
| Dp | 178.5 |
| Prat | 1478.4 |
Performance (History)
| Games | 124 |
| Score | 81.5 |
| Percent | 65.7 |
| Aor | 1273.8 |
| Dp | 133.7 |
| Prat | 1407.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Summerton, K (Kayson) | 4 | 3 | 1 | Durban & Districts Chess Challenge 2024 (U8+U10) | 2026 Ukuthula Trust Chess Tournament (U12) | Details |
| Overall | 2 | Varghese, S (Steven) | 3 | 3 | 0 | Durban & Districts Chess Challenge 2024 (U8+U10) | 2025 Westville Girls High School Rapid (U12) | Details |
| Overall | 3 | Power, A (Amber) | 3 | 2 | 1 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | 2026 KwaZulu Natal Closed Championship (U12 Girls) | Details |
| Overall | 4 | Mistry, P (Priyanka) | 2 | 0 | 2 | Durban & Districts Chess Challenge 2024 (U8+U10) | 2026 St Henry's Marist College Girls Chess Tournament (Senior Primary) | Details |
| Overall | 5 | Tsouris, E (Ezra) | 2 | 2 | 0 | Westville Rapid Rated Chess Tournament 2 2024 (Junior Primary) | 2025 Westville Girls High School Rapid (U12) | Details |
| Rapid | 1 | Summerton, K (Kayson) | 3 | 2 | 1 | Durban & Districts Chess Challenge 2024 (U8+U10) | 2025 Westville Girls High School Rapid (U12) | Details |
| Rapid | 2 | Varghese, S (Steven) | 3 | 3 | 0 | Durban & Districts Chess Challenge 2024 (U8+U10) | 2025 Westville Girls High School Rapid (U12) | Details |
| Rapid | 3 | Singh, S (Suveer) | 2 | 0 | 2 | St James School Rapid Rated Chess Tournament 2024 (Junior Primary) | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | Details |
| Rapid | 4 | Masiteng, N (Nkosikhona) | 2 | 1 | 1 | 2025 Westville Girls High School Rapid (U12) | 2025 KZN Provincial Trials (U12) | Details |
| Rapid | 5 | Tsouris, E (Ezra) | 2 | 2 | 0 | Westville Rapid Rated Chess Tournament 2 2024 (Junior Primary) | 2025 Westville Girls High School Rapid (U12) | Details |