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

PLAYER PAGE

Chelsea Jane Nell

2130133065
Nelson Mandela Bay (ENM)
Personal
Main rating
Rating 1598.7
K-factor 28
Floor 1158.3
Highest 1658.3 (2025-02-01)
Min/Max +/- allowed 86
Rating Change
()
Games 15
Score 12
We 10.83
SWe 0.79
Temp +/- 22
Penalties 0
Weight perform 1575.7
Final +/- +22
New Rating
()
Rating 1620.8
K-factor 28
Floor 1158.3
Highest 1658.3 (2025-02-01)
Min/Max +/- allowed 86.3
Standard rating
Rating 1604.9
K-factor 28
Floor 1143.2
Highest 1643.2 (2025-08-01)
Min/Max +/- allowed 88.2
Rating Change
()
Games 10
Score 8
We 7.37
SWe 0.63
Temp +/- 17.6
Penalties 0
Weight perform 1595.7
Final +/- +17.6
New Rating
()
Rating 1622.6
K-factor 28
Floor 1143.2
Highest 1643.2 (2025-08-01)
Min/Max +/- allowed 88.2
Rapid rating
Rating 1421.8
K-factor 32
Floor 921.8
Highest 1421.8 (2026-09-01)
Min/Max +/- allowed 120.9
Rating Change
()
Games 5
Score 4
We 3.28
SWe 0.72
Temp +/- 23.1
Penalties 0
Weight perform 1535
Final +/- +113.2
New Rating
()
Rating 1535
K-factor 32
Floor 1035
Highest 1535 (2026-10-01)
Min/Max +/- allowed 102.9
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
1 EC Schools Chess Championships 2026 (U13 Girls) Standard 2026-10-09 2026-10-09 Buffalo City (EBC) 5 1598.7 5 5 1728 28.6 Details
2 Eastern Cape Closed Championship 2026 (U14 Girls) Standard 2026-09-25 2026-09-26 Sarah Baartman (ESB) 6 1598.7 5 3 1517.2 -10 Details
3 Eastern Cape Chess Festival 2026 (Inter-Regionals U14) Rapid 2026-09-25 2026-09-25 Sarah Baartman (ESB) 5 1598.7 5 4 1668.7 3.5 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 NMB & SB District Summer Schools Individual Finals 2026 (U13 Girls) Rapid 2026-08-29 2026-08-29 Nelson Mandela Bay (ENM) 5 1598.7 5 3.5 1579.8 1.3 Details
2 NMB District Schools Individual Finals 2026 (U13 Girls) Rapid 2026-08-22 2026-08-22 Nelson Mandela Bay (ENM) 5 1598.7 5 4 1465.5 3.6 Details
3 NMB Closed 2026 (U14) Standard 2026-08-15 2026-08-15 Nelson Mandela Bay (ENM) 5 1598.7 5 3 1589.9 -1.6 Details
4 Checkmate in Gqeberha 2026 (A) Rapid 2026-07-11 2026-07-11 Nelson Mandela Bay (ENM) 6 1615.2 6 1 1420 -19.8 Details
5 Spartans Bishops 2026 (Crowns) Standard 2026-05-01 2026-05-01 Sarah Baartman (ESB) 5 1619 5 3 1575.9 -3.5 Details
6 NMBCU Trials 5 2026 (U14) Standard 2026-05-15 2026-05-16 Nelson Mandela Bay (ENM) 6 1619 6 4 1655.4 6.1 Details
7 2026 NMBCU Trials 4 (U14) Standard 2026-04-24 2026-04-25 Nelson Mandela Bay (ENM) 6 1590.9 6 4 1610.2 3.4 Details
8 NMBCU Trials 3 2026 (U14) Standard 2026-04-18 2026-04-18 Nelson Mandela Bay (ENM) 5 1590.9 5 3 1561.3 -4.8 Details
9 South African Junior Closed Chess Championship 2026 (U14 Girls) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1590.9 9 6.5 1685.8 29.6 Details
10 2026 NMBCU Trials 2 (U14) Standard 2026-03-06 2026-03-07 Nelson Mandela Bay (ENM) 6 1601 6 3.5 1549.8 -10.1 Details
11 Pearson Chess Festival 2026 (B) Standard 2026-02-27 2026-02-28 Nelson Mandela Bay (ENM) 5 1602.4 5 3 1316.2 -27.9 Details
12 NMBCU Trial 1 2026 (U14) Standard 2026-02-20 2026-02-21 Nelson Mandela Bay (ENM) 5 1602.4 5 3 1472.2 -11.6 Details
13 2025 African Youth Chess Championship Classical 2025-12-07 2025-12-13 Zimbabwe (ZIM) 9 1647.4 9 5 1609.9 -8.6 Details
14 2025 Mzansi Inter Provincial Team Championships (U14 Girls) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1647.4 5 2 1374.8 -25.7 Details
15 EC Closed 2025 (U14 Girls) Standard 2025-09-06 2025-09-07 Nelson Mandela Bay (ENM) 6 1611.8 6 5.5 1801.9 25.4 Details
16 FIDE in the Bay 2025 (A) Standard 2025-08-30 2025-08-30 Nelson Mandela Bay (ENM) 5 1655.2 5 2 1489.9 -16.8 Details
17 UCC Mind Over Board 2025 (A) Classical 2025-08-01 2025-08-03 Nelson Mandela Bay (ENM) 5 1655.2 5 3 1525.8 -14.2 Details
18 Eastern Cape Inter-Regional Individual Chess Championship 2025 (U14 Girls) Standard 2025-07-11 2025-07-12 Amathole (EAL) 6 1599.4 6 6 1766.4 19.9 Details
19 Eastern Cape Inter-Regional Team Chess Championship 2025 (U14) Standard 2025-07-10 2025-07-11 Amathole (EAL) 5 1599.4 3 3 1759.5 8.8 Details
20 NMBCU Closed 2025 (U14) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1609.6 6 4 1533.2 -7.3 Details
21 NMBCU Trial 4 2025 (U14) Standard 2025-05-09 2025-05-10 Nelson Mandela Bay (ENM) 6 1634.2 6 4 1655.8 2.7 Details
22 Karen Ashworth 2025 (A) Standard 2025-04-26 2025-04-26 Nelson Mandela Bay (ENM) 5 1634.2 4 1 1374.3 -20.3 Details
23 NMB 3rd Trials 2025 (U14) Standard 2025-04-11 2025-04-12 Nelson Mandela Bay (ENM) 6 1603.1 6 4 1483.7 -13.6 Details
24 South African Junior Closed Chess Championships 2025 (U12 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1603.1 9 7 1767.9 35.8 Details
25 NMB 2nd Trials 2025 (U14) Standard 2025-03-07 2025-03-08 Nelson Mandela Bay (ENM) 6 1650.4 6 4 1592.9 -6.5 Details
26 UCC Strategic Moves 2025 (B) Standard 2025-02-28 2025-03-01 Nelson Mandela Bay (ENM) 5 1650.4 5 3 1370.7 -27.3 Details
27 Pearson High Chess Festival 2025 (C) Standard 2025-02-21 2025-02-22 Nelson Mandela Bay (ENM) 5 1658.3 5 4 1586.2 -6.1 Details
28 NMBCH Trial 1 2025 (U14) Standard 2025-02-14 2025-02-15 Nelson Mandela Bay (ENM) 6 1658.3 6 4.5 1569.9 -7 Details
29 SBDCU Fundraiser 2025 (U13) Standard 2025-02-01 2025-02-01 Sarah Baartman (ESB) 5 1658.3 5 4.5 1722.1 7.6 Details
30 NMBCU vs BCC Derby Chess Invitational 2025 (U12) Standard 2025-01-10 2025-01-11 Nelson Mandela Bay (ENM) 5 1547 5 5 1832.7 28.2 Details
31 SBD Activation Tournament 2025 (B) Rapid 2025-01-04 2025-01-04 Sarah Baartman (ESB) 5 1547 5 5 1804.5 16.8 Details
32 Mzansi Interprovincial Youth Chess Championships 2024 (U12 Girls Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1539 7 4.5 1573.7 5 Details
33 Grey Junior School Chess Team Championship 2024 (Senior) Rapid 2024-11-02 2024-11-02 Nelson Mandela Bay (ENM) 5 1544.2 5 3 1491 -3.3 Details
34 NMBCU Closed 2024 (U12) Standard 2024-09-20 2024-09-21 Nelson Mandela Bay (ENM) 6 1507.4 6 5 1666.6 19.3 Details
35 2024 UCC Mind Over Board (B) Classical 2024-08-30 2024-09-01 Nelson Mandela Bay (ENM) 5 1507.4 4 2.5 1410.5 -9 Details
36 NMBCU Trial 5 2024 (U12) Standard 2024-08-16 2024-08-17 Nelson Mandela Bay (ENM) 6 1502.8 6 5 1599.5 11.5 Details
37 NMB Open 2024 (B) Standard 2024-08-03 2024-08-04 Nelson Mandela Bay (ENM) 6 1502.8 6 3 1290 -24.9 Details
38 Checkmates Women's Day Chess 2024 Standard 2024-08-09 2024-08-09 Nelson Mandela Bay (ENM) 5 1502.8 5 5 1673.4 16.3 Details
39 Karen Ashworth 2024 (A) Standard 2024-07-19 2024-07-20 Nelson Mandela Bay (ENM) 6 1516 6 3 1230.2 -22.3 Details
40 NMBCU Trials 4 2024 (U12) Standard 2024-07-12 2024-07-13 Nelson Mandela Bay (ENM) 6 1516 4 4 1693.1 14.1 Details
41 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1477.7 9 5.5 1593.6 23.6 Details
42 NMBCU Trial 3 2024 (U12) Standard 2024-05-10 2024-05-11 Nelson Mandela Bay (ENM) 6 1422.7 6 5.5 1653.4 27.2 Details
43 South African Junior Closed Chess Championship 2024 (U12 Girls) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1422.7 9 5.5 1510.7 19.8 Details
44 Spartan Bishops Chess Championships 2024 (Senior Pawns) Standard 2024-05-04 2024-05-05 Bojanala Platina (NBR) 5 1422.7 5 3 1289.2 -13.4 Details
45 NMBCU Trials 2 2024 (U12) Standard 2024-04-12 2024-04-13 Nelson Mandela Bay (ENM) 6 1366.4 5 4.5 1591.7 21.2 Details
46 UCC Strategic Moves 2024 (A) Standard 2024-03-08 2024-03-09 Nelson Mandela Bay (ENM) 5 1379.3 5 1.5 1272.3 -11.6 Details
47 Madibaz Chess Tournament 2024 (B) Standard 2024-03-01 2024-03-02 Nelson Mandela Bay (ENM) 5 1379.3 5 3 1407.4 3.5 Details
48 NMBCU Trials 1 2024 (U12) Standard 2024-02-16 2024-02-16 Nelson Mandela Bay (ENM) 6 1312.9 6 5.5 1597.7 33.5 Details
49 Pearson Open Chess Tournament 2024 (B) Standard 2024-02-23 2024-02-24 Nelson Mandela Bay (ENM) 5 1312.9 5 3.5 1403.1 8.1 Details
50 Chess Lovers Classic December 2023 Standard 2023-12-09 2023-12-10 Nelson Mandela Bay (ENM) 6 1307.5 6 2.5 1334.3 3.4 Details
Game statistics ( )
Games 5
Wins 5
Draws 0
Losses 0
White 2
Black 3
White wins 2
Black wins 3
Score 5
Percent 100
Dp 425
AOR 1303
Performance 1728
Game statistics ()
Games 83
Wins 50
Draws 7
Losses 26
White 41
Black 42
White wins 26
Black wins 24
Score 53.5
Percent 64.5
Dp 122.9
AOR 1442.9
Performance 1565.8
Game statistics (History)
Games 464
Wins 278
Draws 50
Losses 136
White 236
Black 228
White wins 144
Black wins 134
Score 303
Percent 65.3
Dp 130.1
AOR 1348.3
Performance 1478.4
Rankings (Main)
National
Overall 1096
Gender 91
Age group 81
Gender/Age 14
Provincial
Overall 113
Gender 7
Age group 11
Gender/Age 1
Regional
Overall 52
Gender 3
Age group 5
Gender/Age 1
Rankings (Standard)
National
Overall 951
Gender 77
Age group 71
Gender/Age 12
Provincial
Overall 94
Gender 6
Age group 10
Gender/Age 2
Regional
Overall 43
Gender 4
Age group 6
Gender/Age 2
Rankings (Rapid)
National
Overall 820
Gender 95
Age group 129
Gender/Age 27
Provincial
Overall 72
Gender 9
Age group 10
Gender/Age 3
Regional
Overall 23
Gender 1
Age group 3
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 5
Score 5
Percent 100
Aor 1303
Dp 425
Prat 1728
Performance ()
Games 83
Score 53.5
Percent 64.5
Aor 1442.9
Dp 122.9
Prat 1565.8
Performance (12 months)
Games 97
Score 60.5
Percent 62.4
Aor 1454.8
Dp 105.2
Prat 1560
Performance (History)
Games 464
Score 303
Percent 65.3
Aor 1348.3
Dp 130.1
Prat 1478.4
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Grobler, M (Mia) 15 8 7 2022 NMB Junior Trials 2 (U10) NMB & SB District Summer Schools Individual Finals 2026 (U13 Girls) Details
Overall 2 Driscoll, S (Samuel) 14 11 3 2020 NMBCU Chess Trials 2 2020 (U8) Checkmate in Gqeberha 2026 (A) Details
Overall 3 Chipunza, J (Jaden) 10 6 4 NMBCU Trial 3 2022 (U10) NMBCU Closed 2025 (U14) Details
Overall 4 Murray, C (Chloe) 10 3 7 NMBCU Trial 4 2023 (U12) NMB & SB District Summer Schools Individual Finals 2026 (U13 Girls) Details
Overall 5 Kapp, S (Sebastian) 8 3 5 NMB 1st Trials 2023 (U12) FIDE in the Bay 2025 (A) Details
Standard 1 Driscoll, S (Samuel) 13 10 3 2020 NMBCU Chess Trials 2 2020 (U8) NMBCU Trial 1 2026 (U14) Details
Standard 2 Grobler, M (Mia) 12 6 6 2022 NMB Junior Trials 2 (U10) NMB Closed 2026 (U14) Details
Standard 3 Chipunza, J (Jaden) 10 6 4 NMBCU Trial 3 2022 (U10) NMBCU Closed 2025 (U14) Details
Standard 4 Murray, C (Chloe) 8 3 5 NMBCU Trial 4 2023 (U12) NMB Closed 2026 (U14) Details
Standard 5 Kapp, S (Sebastian) 7 2 5 NMB 1st Trials 2023 (U12) FIDE in the Bay 2025 (A) Details
Rapid 1 Grobler, M (Mia) 3 2 1 Grey Junior School Chess Team Championship 2024 (Senior) NMB & SB District Summer Schools Individual Finals 2026 (U13 Girls) Details
Rapid 2 Manton, C (Charlie) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details
Rapid 3 Sihewula, A (Achuma) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details
Rapid 4 Murray, C (Chloe) 2 0 2 NMB District Schools Individual Finals 2026 (U13 Girls) NMB & SB District Summer Schools Individual Finals 2026 (U13 Girls) Details
Rapid 5 Boggenpoel, D (Dante Xavier) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details