PLAYER PAGE
Isabella Ambrose
2110151735Ekurhuleni (GE)Personal
Main rating
| Rating | 1530.6 |
| K-factor | 32 |
| Floor | 1044.6 |
| Highest | 1563.6 (2024-09-01) |
| Min/Max +/- allowed | 99 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1446.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1530.6 |
| K-factor | 32 |
| Floor | 1044.6 |
| Highest | 1563.6 (2024-09-01) |
| Min/Max +/- allowed | 98.8 |
Standard rating
| Rating | 1514.7 |
| K-factor | 32 |
| Floor | 1041.5 |
| Highest | 1557.6 (2024-09-01) |
| Min/Max +/- allowed | 99.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1436.2 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1514.7 |
| K-factor | 32 |
| Floor | 1041.5 |
| Highest | 1557.6 (2024-09-01) |
| Min/Max +/- allowed | 99.6 |
Rapid rating
| Rating | 1488.7 |
| K-factor | 32 |
| Floor | 988.7 |
| Highest | 1488.7 (2025-09-01) |
| Min/Max +/- allowed | 109.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1344 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1488.7 |
| K-factor | 32 |
| Floor | 988.7 |
| Highest | 1488.7 (2025-09-01) |
| Min/Max +/- allowed | 109.9 |
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 | Gauteng Inter-Region at Emerald Resort 2025 (U16+U18 Girls) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1544.9 | 4 | 2 | 1406.4 | 0 | Details |
| 2 | 2025 Gauteng Top Schools Teams (U19 Girls) | Standard | 2025-08-30 | 2025-08-30 | Tshwane (GTP) | 5 | 1543.3 | 5 | 4 | 1622.7 | 0 | Details |
| 3 | 2025 Gauteng Schools Provincial Individual Chess Championship (U15 Girls) | Standard | 2025-09-27 | 2025-09-27 | Tshwane (GTP) | 5 | 1543.3 | 5 | 3 | 1470.9 | 0 | Details |
| 4 | Ekurhuleni North Schools Teams 2025 (U19 Open) | Standard | 2025-08-16 | 2025-08-16 | Ekurhuleni (GE) | 5 | 1540.1 | 4 | 3.5 | 1653.5 | 0 | Details |
| 5 | Ekurhuleni North Schools Teams 2025 (U19 Girls) | Rapid | 2025-08-15 | 2025-08-15 | Ekurhuleni (GE) | 5 | 1540.1 | 4 | 4 | 1644.8 | 0 | Details |
| 6 | Ekurhuleni Trials 2025 (D) | Standard | 2025-07-26 | 2025-07-26 | Ekurhuleni (GE) | 5 | 1540.1 | 5 | 3 | 1401.2 | 0 | Details |
| 7 | Ekurhuleni North School District Finals 2025 (U15 Girls) | Standard | 2025-06-14 | 2025-06-14 | Ekurhuleni (GE) | 5 | 1508.2 | 4 | 4 | 1761.3 | 0 | Details |
| 8 | Ekurhuleni Trials 2025 (B) | Standard | 2025-05-24 | 2025-05-24 | Ekurhuleni (GE) | 5 | 1526.4 | 5 | 2 | 1212.9 | 0 | Details |
| 9 | Benoni High School Cluster 2025 (U19) | Standard | 2025-05-10 | 2025-05-10 | Ekurhuleni (GE) | 5 | 1526.4 | 4 | 3.5 | 1629.3 | 0 | Details |
| 10 | Benoni High School Cluster 2025 (U18 Girls) | Rapid | 2025-05-09 | 2025-05-09 | Ekurhuleni (GE) | 5 | 1526.4 | 2 | 2 | 1642.1 | 0 | Details |
| 11 | South African Junior Closed Chess Championships 2025 (U14 Girls) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1500.5 | 9 | 5.5 | 1580.9 | 0 | Details |
| 12 | Ekurhuleni Chess Open 2025 (B) | Standard | 2025-03-15 | 2025-03-15 | Ekurhuleni (GE) | 5 | 1534 | 5 | 1.5 | 1108.9 | 0 | Details |
| 13 | Benoni High School Cluster 15Feb 2025 (U15 Girls) | Standard | 2025-02-15 | 2025-02-15 | Ekurhuleni (GE) | 5 | 1542.8 | 5 | 4 | 1476.3 | 0 | Details |
| 14 | Ekurhuleni Closed 2024 (U14) | Standard | 2024-09-21 | 2024-09-21 | Ekurhuleni (GE) | 5 | 1497.7 | 5 | 4 | 1622.4 | 0 | Details |
| 15 | Ekurhuleni North Schools Finals - Teams 2024 (U13 Girls) | Rapid | 2024-08-02 | 2024-08-02 | Ekurhuleni (GE) | 5 | 1497.7 | 5 | 5 | 1593.8 | 0 | Details |
| 16 | Gauteng Schools Individuals Finals 2024 (U13 Girls) | Standard | 2024-08-16 | 2024-08-16 | Ekurhuleni (GE) | 5 | 1497.7 | 5 | 4 | 1576.4 | 0 | Details |
| 17 | Ekurhuleni Trails 2 2024 (U14) | Standard | 2024-07-27 | 2024-07-27 | Ekurhuleni (GE) | 5 | 1492.1 | 5 | 4 | 1572.2 | 0 | Details |
| 18 | EN Chess Club Winter Open 2024 (B) | Standard | 2024-06-29 | 2024-06-29 | Ekurhuleni (GE) | 5 | 1492.1 | 5 | 3.5 | 1445.2 | 0 | Details |
| 19 | Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Girls) | Standard | 2024-05-11 | 2024-05-11 | Ekurhuleni (GE) | 5 | 1485.2 | 5 | 4 | 1534.6 | 0 | Details |
| 20 | Westwood Open 2024 (B) | Standard | 2024-04-13 | 2024-04-13 | Ekurhuleni (GE) | 5 | 1496.1 | 5 | 3.5 | 1535.6 | 0 | Details |
| 21 | Ekurhuleni Open 2024 (B) | Standard | 2024-04-06 | 2024-04-06 | Ekurhuleni (GE) | 5 | 1496.1 | 5 | 2.5 | 1370.8 | 0 | Details |
| 22 | Ekurhuleni North Chess Club Open Tournament 2024 (D) | Rapid | 2024-03-02 | 2024-03-02 | Ehlanzeni (MEN) | 7 | 1477.8 | 7 | 6 | 1600.6 | 0 | Details |
| 23 | CPH St Andrew's Rapid 2024 (B) | Rapid | 2024-03-30 | 2024-03-30 | Ekurhuleni (GE) | 5 | 1477.8 | 5 | 3 | 1370.4 | 0 | Details |
| 24 | Benoni Primary School Cluster Individuals 2024 (U13 Girls) | Rapid | 2024-03-09 | 2024-03-09 | Ekurhuleni (GE) | 5 | 1477.8 | 5 | 4 | 1522.1 | 0 | Details |
| 25 | 1st Knights Open Tournament 2024 (C) | Standard | 2024-03-23 | 2024-03-23 | Johannesburg Metro (GJM) | 5 | 1477.8 | 5 | 3.5 | 1479.7 | 0 | Details |
| 26 | 2024 Gauteng Inter-Region Chess Championship (U14 Girls) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1454.9 | 4 | 3 | 1615.1 | 0 | Details |
| 27 | Chess Power House Festive Rapid 2023 (Grade 3-7) | Rapid | 2023-12-15 | 2023-12-15 | Johannesburg Metro (GJM) | 6 | 1418.2 | 6 | 4.5 | 1523.6 | 0 | Details |
| 28 | Ekurhuleni North Chess Club 2023 (C) | Rapid | 2023-12-09 | 2023-12-09 | Ekurhuleni (GE) | 7 | 1418.2 | 7 | 5 | 1574.1 | 0 | Details |
| 29 | 2023 Gauteng Noord (C) | Standard | 2023-10-14 | 2023-10-15 | Tshwane (GTP) | 5 | 1455.5 | 4 | 1.5 | 1192.1 | 0 | Details |
| 30 | Ekurhuleni Chess Spring Tournament 2023 (D) | Standard | 2023-09-23 | 2023-09-23 | Ekurhuleni (GE) | 5 | 1431.2 | 5 | 4 | 1540.2 | 0 | Details |
| 31 | 2023 Gauteng Top Schools (U13 Mixed) | Standard | 2023-08-18 | 2023-08-18 | West Rand (GWR) | 5 | 1449.3 | 5 | 2.5 | 1340.5 | 0 | Details |
| 32 | 2023 Ekurhuleni North District Schools Finals (U13) | Standard | 2023-07-29 | 2023-07-29 | Ekurhuleni (GE) | 5 | 1320.4 | 5 | 4 | 1558.4 | 0 | Details |
| 33 | Boksburg Chess Club Rapid 2023 | Rapid | 2023-06-20 | 2023-06-20 | Ekurhuleni (GE) | 5 | 1270.7 | 2 | 0.5 | 1251.8 | 0 | Details |
| 34 | Ekurhuleni Chess Trial 3 2023 (U14) | Standard | 2023-06-17 | 2023-06-17 | Ekurhuleni (GE) | 5 | 1270.7 | 5 | 4 | 1567.3 | 0 | Details |
| 35 | Ekurhuleni Trials 2 2023 (U14) | Standard | 2023-04-22 | 2023-04-22 | Ekurhuleni (GE) | 5 | 1251.6 | 5 | 3 | 1352.7 | 0 | Details |
| 36 | Ekhuruleni Chess Trials 1 2023 (U14) | Standard | 2023-03-25 | 2023-03-25 | Ekurhuleni (GE) | 5 | 1200 | 5 | 2.5 | 1387.4 | 0 | Details |
| 37 | Ekurhuleni Springs Open 4 March 2023 (D) | Standard | 2023-03-04 | 2023-03-04 | Ekurhuleni (GE) | 5 | 1200 | 5 | 3 | 1278.8 | 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 | 181 |
| Wins | 117 |
| Draws | 19 |
| Losses | 45 |
| White | 90 |
| Black | 91 |
| White wins | 57 |
| Black wins | 60 |
| Score | 126.5 |
| Percent | 69.9 |
| Dp | 169.1 |
| AOR | 1321 |
| Performance | 1490 |
Rankings (Main)
| National | |
| Overall | 1485 |
| Gender | 147 |
| Age group | 159 |
| Gender/Age | 26 |
| Provincial | |
| Overall | 525 |
| Gender | 57 |
| Age group | 51 |
| Gender/Age | 11 |
| Regional | |
| Overall | 72 |
| Gender | 7 |
| Age group | 10 |
| Gender/Age | 4 |
Rankings (Standard)
| National | |
| Overall | 1524 |
| Gender | 177 |
| Age group | 168 |
| Gender/Age | 30 |
| Provincial | |
| Overall | 536 |
| Gender | 67 |
| Age group | 56 |
| Gender/Age | 13 |
| Regional | |
| Overall | 78 |
| Gender | 11 |
| Age group | 12 |
| Gender/Age | 4 |
Rankings (Rapid)
| National | |
| Overall | 351 |
| Gender | 22 |
| Age group | 51 |
| Gender/Age | 8 |
| Provincial | |
| Overall | 67 |
| Gender | 3 |
| Age group | 3 |
| Gender/Age | 1 |
| Regional | |
| Overall | 8 |
| Gender | 1 |
| Age group | 1 |
| 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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 56 |
| Score | 38 |
| Percent | 67.9 |
| Aor | 1347.8 |
| Dp | 151.8 |
| Prat | 1499.6 |
Performance (History)
| Games | 181 |
| Score | 126.5 |
| Percent | 69.9 |
| Aor | 1321 |
| Dp | 169.1 |
| Prat | 1490 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Hingorani, R (Ridhima) | 3 | 2 | 1 | Ekurhuleni North Chess Club Open Tournament 2024 (D) | Gauteng Schools Individuals Finals 2024 (U13 Girls) | Details |
| Overall | 2 | Tema, O (Ofana) | 3 | 2 | 1 | Ekurhuleni Trials 2 2023 (U14) | Ekurhuleni Closed 2024 (U14) | Details |
| Overall | 3 | Botha, JCC (Johannes Christiaan Corneli) | 3 | 1 | 2 | Ekhuruleni Chess Trials 1 2023 (U14) | 2023 Gauteng Top Schools (U13 Mixed) | Details |
| Overall | 4 | Devereux, C (Cayden) | 3 | 1 | 2 | Ekurhuleni Trails 2 2024 (U14) | Ekurhuleni Trials 2025 (D) | Details |
| Overall | 5 | Pillay, Z (Zac) | 2 | 1 | 1 | Westwood Open 2024 (B) | Ekurhuleni Trials 2025 (D) | Details |
| Standard | 1 | Tema, O (Ofana) | 3 | 2 | 1 | Ekurhuleni Trials 2 2023 (U14) | Ekurhuleni Closed 2024 (U14) | Details |
| Standard | 2 | Botha, JCC (Johannes Christiaan Corneli) | 3 | 1 | 2 | Ekhuruleni Chess Trials 1 2023 (U14) | 2023 Gauteng Top Schools (U13 Mixed) | Details |
| Standard | 3 | Devereux, C (Cayden) | 3 | 1 | 2 | Ekurhuleni Trails 2 2024 (U14) | Ekurhuleni Trials 2025 (D) | Details |
| Standard | 4 | Moorcroft, Z (Zelneri) | 2 | 2 | 0 | Gauteng Schools Individuals Finals 2024 (U13 Girls) | 2025 Gauteng Schools Provincial Individual Chess Championship (U15 Girls) | Details |
| Standard | 5 | Del Grosso, G (Gianluca Gabriele) | 2 | 1 | 1 | Benoni High School Cluster 2025 (U19) | Ekurhuleni North Schools Teams 2025 (U19 Open) | Details |
| Rapid | 1 | Taylor, J (Jordan) | 2 | 1 | 1 | Benoni High School Cluster 2025 (U18 Girls) | Ekurhuleni North Schools Teams 2025 (U19 Girls) | Details |
| Rapid | 2 | Kotze, S (Skye) | 2 | 1 | 1 | Benoni High School Cluster 2025 (U18 Girls) | Ekurhuleni North Schools Teams 2025 (U19 Girls) | Details |