Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Isabella Armstrong

2140191835
Nelson Mandela Bay (ENM)
Personal
Main rating
Rating 1345.1
K-factor 32
Floor 961.1
Highest 1461.1 (2025-08-01)
Min/Max +/- allowed 114
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1337.6
Final +/- 0
New Rating
()
Rating 1345.1
K-factor 32
Floor 961.1
Highest 1461.1 (2025-08-01)
Min/Max +/- allowed 114.3
Standard rating
Rating 1348.4
K-factor 32
Floor 960.5
Highest 1460.5 (2025-08-01)
Min/Max +/- allowed 114.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1344.1
Final +/- 0
New Rating
()
Rating 1348.4
K-factor 32
Floor 960.5
Highest 1460.5 (2025-08-01)
Min/Max +/- allowed 114.4
Rapid rating
Rating 1169.5
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 1169.5
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
No tournaments found.
# 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 2026 PECC Presidents Cup (B) Standard 2026-07-30 2026-08-27 Nelson Mandela Bay (ENM) 5 1345.1 5 3 1443.8 20.8 Details
2 NMB Closed 2026 (U14) Standard 2026-08-15 2026-08-15 Nelson Mandela Bay (ENM) 5 1345.1 5 1.5 1288.5 -7.4 Details
3 UCC Mind Over Board 2026 (B) Standard 2026-08-01 2026-08-01 Nelson Mandela Bay (ENM) 5 1345.1 5 2.5 1341.6 5.6 Details
4 Checkmate in Gqeberha 2026 (B) Rapid 2026-07-11 2026-07-11 Nelson Mandela Bay (ENM) 6 1317 6 3 1391.3 9 Details
5 Spartans Bishops 2026 (Crowns) Standard 2026-05-01 2026-05-01 Sarah Baartman (ESB) 5 1310.9 4 3 1554.9 19 Details
6 NMBCU Trials 5 2026 (U14) Standard 2026-05-15 2026-05-16 Nelson Mandela Bay (ENM) 6 1310.9 6 2 1237.7 -13.9 Details
7 2026 NMBCU Trials 4 (U14) Standard 2026-04-24 2026-04-25 Nelson Mandela Bay (ENM) 6 1318.6 5 2 1232 -14.6 Details
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 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
22 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
23 NMBCU Closed 2025 (U12) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1278.3 6 2 1185.9 -11 Details
24 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
25 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
26 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
27 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
28 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
29 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
30 SBDCU Fundraiser 2025 (U11) Standard 2025-02-01 2025-02-01 Sarah Baartman (ESB) 5 1153.7 5 2 1201.5 3.9 Details
31 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
32 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
33 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
34 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
35 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 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 73
Wins 29
Draws 3
Losses 41
White 37
Black 36
White wins 10
Black wins 19
Score 30.5
Percent 41.8
Dp -69.9
AOR 1373.2
Performance 1303.3
Game statistics (History)
Games 189
Wins 79
Draws 5
Losses 105
White 98
Black 91
White wins 42
Black wins 37
Score 81.5
Percent 43.1
Dp -58.5
AOR 1327.7
Performance 1269.3
Rankings (Main)
National
Overall 4840
Gender 825
Age group 684
Gender/Age 185
Provincial
Overall 504
Gender 88
Age group 72
Gender/Age 26
Regional
Overall 168
Gender 23
Age group 20
Gender/Age 8
Rankings (Standard)
National
Overall 4238
Gender 744
Age group 606
Gender/Age 169
Provincial
Overall 453
Gender 79
Age group 69
Gender/Age 23
Regional
Overall 146
Gender 21
Age group 20
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 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 73
Score 30.5
Percent 41.8
Aor 1373.2
Dp -69.9
Prat 1303.3
Performance (12 months)
Games 85
Score 38
Percent 44.7
Aor 1377.3
Dp -45
Prat 1332.3
Performance (History)
Games 189
Score 81.5
Percent 43.1
Aor 1327.7
Dp -58.5
Prat 1269.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Schreinders, M (Mia) 7 3 4 Checkmates Women's Day Chess 2024 NMB Closed 2026 (U14) Details
Overall 2 Armstrong, K (Kristin) 6 5 1 Checkmates Women's Day Chess 2024 2026 PECC Presidents Cup (B) Details
Overall 3 Mouton, W (Wyatt) 6 3 3 NMBCU Trials 1 2024 (U12) Checkmate in Gqeberha 2026 (B) Details
Overall 4 Ntsilatana, Y (Yothando) 5 3 2 NMBCU Trials 1 2024 (U12) Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Girls) Details
Overall 5 Bambalaza, E (Ed) 4 3 1 FIDE in the Bay 2025 (U12) NMB Closed 2026 (U14) Details
Standard 1 Schreinders, M (Mia) 7 3 4 Checkmates Women's Day Chess 2024 NMB Closed 2026 (U14) Details
Standard 2 Armstrong, K (Kristin) 6 5 1 Checkmates Women's Day Chess 2024 2026 PECC Presidents Cup (B) Details
Standard 3 Ntsilatana, Y (Yothando) 5 3 2 NMBCU Trials 1 2024 (U12) Eastern Cape Inter-Regional Individual Chess Championship 2025 (U12 Girls) Details
Standard 4 Mouton, W (Wyatt) 5 3 2 NMBCU Trials 1 2024 (U12) 2026 NMBCU Trials 4 (U14) Details
Standard 5 Bambalaza, E (Ed) 4 3 1 FIDE in the Bay 2025 (U12) NMB Closed 2026 (U14) Details