PLAYER PAGE
Isabella Armstrong
2140191835Nelson Mandela Bay (ENM)Personal
Main rating
| Rating | 1318.6 |
| K-factor | 32 |
| Floor | 961.1 |
| Highest | 1461.1 (2025-08-01) |
| Min/Max +/- allowed | 114 |
| Rating Change () | |
| Games | 14 |
| Score | 5.5 |
| We | 5.39 |
| SWe | 0.22 |
| Temp +/- | 7 |
| Penalties | 0 |
| Weight perform | 1278.7 |
| Final +/- | +7 |
| New Rating () | |
| Rating | 1325.6 |
| K-factor | 32 |
| Floor | 961.1 |
| Highest | 1461.1 (2025-08-01) |
| Min/Max +/- allowed | 114.3 |
Standard rating
| Rating | 1303.3 |
| K-factor | 32 |
| Floor | 960.5 |
| Highest | 1460.5 (2025-08-01) |
| Min/Max +/- allowed | 114.4 |
| Rating Change () | |
| Games | 14 |
| Score | 5.5 |
| We | 5.1 |
| SWe | 0.4 |
| Temp +/- | 12.7 |
| Penalties | 0 |
| Weight perform | 1278.7 |
| Final +/- | +12.7 |
| New Rating () | |
| Rating | 1316.1 |
| K-factor | 32 |
| Floor | 960.5 |
| Highest | 1460.5 (2025-08-01) |
| Min/Max +/- allowed | 114.4 |
Rapid rating
| Rating | 1159.4 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| 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 | 1159.4 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-02-01) |
| 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 (2024-02-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | NMBCU Trials 3 2026 (U14) | Standard | 2026-04-18 | 2026-04-18 | Nelson Mandela Bay (ENM) | 5 | 1318.6 | 5 | 2 | 1216.8 | -17 | Details |
| 2 | South African Junior Closed Chess Championship 2026 (U12 Girls) | Classical | 2026-03-28 | 2026-04-02 | Bojanala Platina (NBR) | 9 | 1318.6 | 9 | 3.5 | 1387.1 | 24 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 NMBCU Trials 2 (U14) | Standard | 2026-03-06 | 2026-03-07 | Nelson Mandela Bay (ENM) | 6 | 1333.2 | 5 | 2 | 1246.9 | -14.6 | Details |
| 2 | Pearson Chess Festival 2026 (C) | Standard | 2026-02-27 | 2026-02-28 | Nelson Mandela Bay (ENM) | 5 | 1373.2 | 4 | 2 | 1378.2 | 0.5 | Details |
| 3 | NMBCU Trial 1 2026 (U14) | Standard | 2026-02-20 | 2026-02-21 | Nelson Mandela Bay (ENM) | 5 | 1373.2 | 5 | 2 | 1211.1 | -14.9 | Details |
| 4 | SAJCCC ENM Players Fundraiser February 2026 (U12) | Standard | 2026-02-14 | 2026-02-14 | Nelson Mandela Bay (ENM) | 5 | 1373.2 | 4 | 1 | 1242.1 | -10.3 | Details |
| 5 | Fide in the Bay 2026 (B) | Standard | 2026-01-24 | 2026-01-24 | Nelson Mandela Bay (ENM) | 5 | 1433.1 | 5 | 1 | 1055.5 | -37.5 | Details |
| 6 | 2025 Mzansi Individual Championships (U12 Girls) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1387.2 | 6 | 3 | 1458.2 | 10 | Details |
| 7 | 2025 Mzansi Inter Provincial Team Championships (U12 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1387.2 | 6 | 4.5 | 1558.8 | 18.8 | Details |
| 8 | EC Closed 2025 (U12 Girls) | Standard | 2025-09-06 | 2025-09-07 | Nelson Mandela Bay (ENM) | 6 | 1426.9 | 6 | 3 | 1237.9 | -24.8 | Details |
| 9 | FIDE in the Bay 2025 (U12) | Standard | 2025-08-30 | 2025-08-30 | Nelson Mandela Bay (ENM) | 5 | 1461.1 | 5 | 2 | 1247.8 | -21.4 | Details |
| 10 | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Girls) | Standard | 2025-07-11 | 2025-07-12 | Amathole (EAL) | 6 | 1266.8 | 5 | 5 | 1715.2 | 43 | Details |
| 11 | Eastern Cape Inter-Regional Team Chess Championship 2025 (U12) | Standard | 2025-07-10 | 2025-07-11 | Amathole (EAL) | 5 | 1266.8 | 4 | 3 | 1502.9 | 18.4 | Details |
| 12 | Fide in the Bay 2025 (B) | Standard | 2025-07-05 | 2025-07-05 | Nelson Mandela Bay (ENM) | 5 | 1266.8 | 5 | 2 | 1239.7 | -2 | Details |
| 13 | Ty's Winter Classic 2025 | Standard | 2025-06-27 | 2025-06-28 | Nelson Mandela Bay (ENM) | 7 | 1278.3 | 7 | 2.5 | 1305.3 | 2.2 | Details |
| 14 | NMBCU Closed 2025 (U12) | Standard | 2025-06-13 | 2025-06-14 | Nelson Mandela Bay (ENM) | 6 | 1278.3 | 6 | 2 | 1185.9 | -11 | Details |
| 15 | NMBCU Open 2025 (C) | Standard | 2025-05-23 | 2025-05-24 | Nelson Mandela Bay (ENM) | 6 | 1204.1 | 6 | 3 | 1372.5 | 19.6 | Details |
| 16 | NMBCU Trial 4 2025 (U12) | Standard | 2025-05-09 | 2025-05-10 | Nelson Mandela Bay (ENM) | 6 | 1204.1 | 5 | 2 | 1259.8 | 4.6 | Details |
| 17 | NMB 3rd Trials 2025 (U12) | Standard | 2025-04-11 | 2025-04-12 | Nelson Mandela Bay (ENM) | 6 | 1188.8 | 6 | 3 | 1262.1 | 8.5 | Details |
| 18 | NMB 2nd Trials 2025 (U12) | Standard | 2025-03-07 | 2025-03-08 | Nelson Mandela Bay (ENM) | 6 | 1158.8 | 6 | 3 | 1258.5 | 11.6 | Details |
| 19 | UCC Strategic Moves 2025 (B) | Standard | 2025-02-28 | 2025-03-01 | Nelson Mandela Bay (ENM) | 5 | 1158.8 | 5 | 2 | 1202.8 | 5.1 | Details |
| 20 | NMBCH Trial 1 2025 (U12) | Standard | 2025-02-14 | 2025-02-15 | Nelson Mandela Bay (ENM) | 6 | 1153.7 | 6 | 2 | 1107.2 | -5.6 | Details |
| 21 | SBDCU Fundraiser 2025 (U11) | Standard | 2025-02-01 | 2025-02-01 | Sarah Baartman (ESB) | 5 | 1153.7 | 5 | 2 | 1201.5 | 3.9 | Details |
| 22 | NMBCU vs BCC Derby Chess Invitational 2025 (Open B) | Standard | 2025-01-10 | 2025-01-11 | Nelson Mandela Bay (ENM) | 5 | 1106.9 | 4 | 0 | 812 | -23.7 | Details |
| 23 | Checkmates Women's Day Chess 2024 | Standard | 2024-08-09 | 2024-08-09 | Nelson Mandela Bay (ENM) | 5 | 1175.9 | 5 | 0 | 789.8 | -38.3 | Details |
| 24 | Willow Academy 2024 (B) | Rapid | 2024-06-22 | 2024-06-22 | Nelson Mandela Bay (ENM) | 6 | 1198.1 | 6 | 1 | 1012.3 | -12.5 | Details |
| 25 | NMBCU Trials 2 2024 (U12) | Standard | 2024-04-12 | 2024-04-13 | Nelson Mandela Bay (ENM) | 6 | 1201.7 | 6 | 3 | 1184.7 | -2 | Details |
| 26 | NMBCU Trials 1 2024 (U12) | Standard | 2024-02-16 | 2024-02-16 | Nelson Mandela Bay (ENM) | 6 | 1200 | 6 | 3 | 1206.9 | 0.8 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 2 |
| Draws | 0 |
| Losses | 3 |
| White | 3 |
| Black | 2 |
| White wins | 0 |
| Black wins | 2 |
| Score | 2 |
| Percent | 40 |
| Dp | -85 |
| AOR | 1301.8 |
| Performance | 1216.8 |
Game statistics ()
| Games | 37 |
| Wins | 13 |
| Draws | 1 |
| Losses | 23 |
| White | 19 |
| Black | 18 |
| White wins | 6 |
| Black wins | 7 |
| Score | 13.5 |
| Percent | 36.5 |
| Dp | -114.9 |
| AOR | 1374.8 |
| Performance | 1259.9 |
Game statistics (History)
| Games | 153 |
| Wins | 63 |
| Draws | 3 |
| Losses | 87 |
| White | 80 |
| Black | 73 |
| White wins | 38 |
| Black wins | 25 |
| Score | 64.5 |
| Percent | 42.2 |
| Dp | -66.7 |
| AOR | 1317.4 |
| Performance | 1250.8 |
Rankings (Main)
| National | |
| Overall | 5535 |
| Gender | 956 |
| Age group | 741 |
| Gender/Age | 194 |
| Provincial | |
| Overall | 579 |
| Gender | 87 |
| Age group | 72 |
| Gender/Age | 24 |
| Regional | |
| Overall | 188 |
| Gender | 25 |
| Age group | 22 |
| Gender/Age | 8 |
Rankings (Standard)
| National | |
| Overall | 5460 |
| Gender | 1004 |
| Age group | 789 |
| Gender/Age | 218 |
| Provincial | |
| Overall | 588 |
| Gender | 94 |
| Age group | 79 |
| Gender/Age | 27 |
| Regional | |
| Overall | 184 |
| Gender | 25 |
| Age group | 22 |
| Gender/Age | 8 |
Rankings (Rapid)
| 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 |
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 | 14 |
| Score | 5.5 |
| Percent | 39.3 |
| Aor | 1417.3 |
| Dp | -91.1 |
| Prat | 1326.3 |
Performance ()
| Games | 37 |
| Score | 13.5 |
| Percent | 36.5 |
| Aor | 1374.8 |
| Dp | -114.9 |
| Prat | 1259.9 |
Performance (12 months)
| Games | 98 |
| Score | 45.5 |
| Percent | 46.4 |
| Aor | 1356.5 |
| Dp | -30.4 |
| Prat | 1326.1 |
Performance (History)
| Games | 153 |
| Score | 64.5 |
| Percent | 42.2 |
| Aor | 1317.4 |
| Dp | -66.7 |
| Prat | 1250.8 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Ntsilatana, Y (Yothando) | 5 | 3 | 2 | NMBCU Trials 1 2024 (U12) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Girls) | Details |
| Overall | 2 | Schreinders, M (Mia) | 5 | 2 | 3 | Checkmates Women's Day Chess 2024 | NMBCU Open 2025 (C) | Details |
| Overall | 3 | Armstrong, K (Kristin) | 4 | 4 | 0 | Checkmates Women's Day Chess 2024 | SAJCCC ENM Players Fundraiser February 2026 (U12) | Details |
| Overall | 4 | Mouton, W (Wyatt) | 3 | 3 | 0 | NMBCU Trials 1 2024 (U12) | 2026 NMBCU Trials 2 (U14) | Details |
| Overall | 5 | Jacobs, J (Joel) | 3 | 1 | 2 | NMBCH Trial 1 2025 (U12) | NMBCU Trial 4 2025 (U12) | Details |
| Standard | 1 | Ntsilatana, Y (Yothando) | 5 | 3 | 2 | NMBCU Trials 1 2024 (U12) | Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Girls) | Details |
| Standard | 2 | Schreinders, M (Mia) | 5 | 2 | 3 | Checkmates Women's Day Chess 2024 | NMBCU Open 2025 (C) | Details |
| Standard | 3 | Armstrong, K (Kristin) | 4 | 4 | 0 | Checkmates Women's Day Chess 2024 | SAJCCC ENM Players Fundraiser February 2026 (U12) | Details |
| Standard | 4 | Furniss, T (Tyler) | 3 | 0 | 3 | NMBCH Trial 1 2025 (U12) | Ty's Winter Classic 2025 | Details |
| Standard | 5 | Jacobs, J (Joel) | 3 | 1 | 2 | NMBCH Trial 1 2025 (U12) | NMBCU Trial 4 2025 (U12) | Details |