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

PLAYER PAGE

Sebastian Kapp

1120140436
Nelson Mandela Bay (ENM)
Personal
Main rating
Rating 1675.7
K-factor 28
Floor 1274
Highest 1774 (2025-07-01)
Min/Max +/- allowed 73
Rating Change
()
Games 13
Score 8
We 6.41
SWe 0.41
Temp +/- 11.5
Penalties 0
Weight perform 1544
Final +/- +11.5
New Rating
()
Rating 1687.2
K-factor 28
Floor 1274
Highest 1774 (2025-07-01)
Min/Max +/- allowed 73.2
Standard rating
Rating 1667.8
K-factor 28
Floor 1278
Highest 1778 (2026-01-01)
Min/Max +/- allowed 72.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1532.4
Final +/- 0
New Rating
()
Rating 1667.8
K-factor 28
Floor 1278
Highest 1778 (2026-01-01)
Min/Max +/- allowed 72.8
Rapid rating
Rating 1446.3
K-factor 32
Floor 946.3
Highest 1446.3 (2026-06-01)
Min/Max +/- allowed 116.7
Rating Change
()
Games 6
Score 3
We 3.59
SWe -0.59
Temp +/- -19
Penalties 0
Weight perform 1636.9
Final +/- +116.7
New Rating
()
Rating 1563
K-factor 32
Floor 1063
Highest 1563 (2026-07-01)
Min/Max +/- allowed 98.9
Blitz rating
Rating 1550.5
K-factor 32
Floor 1050.5
Highest 1550.5 (2026-06-01)
Min/Max +/- allowed 100.6
Rating Change
()
Games 7
Score 5
We 4.57
SWe 0.43
Temp +/- 13.9
Penalties 0
Weight perform 1662.2
Final +/- +100.6
New Rating
()
Rating 1651.2
K-factor 28
Floor 1151.2
Highest 1651.2 (2026-07-01)
Min/Max +/- allowed 87.2
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 PECC Fast & Furious Blitz II Blitz 2026-05-28 2026-05-28 Nelson Mandela Bay (ENM) 7 1675.7 7 5 1822.1 6.3 Details
2 Checkmate in Gqeberha 2026 (A) Rapid 2026-07-11 2026-07-11 Nelson Mandela Bay (ENM) 6 1675.7 6 3 1724.8 5.2 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Spartans Bishops 2026 (U16 Bishops) Standard 2026-05-01 2026-05-03 Sarah Baartman (ESB) 5 1740.6 5 2 1511.7 -32.2 Details
2 NMBCU Trials 5 2026 (U16) Standard 2026-05-15 2026-05-16 Nelson Mandela Bay (ENM) 6 1740.6 5 2.5 1375.7 -46 Details
3 2026 PECC Fast & Furious Blitz I Blitz 2026-05-14 2026-05-21 Nelson Mandela Bay (ENM) 10 1740.6 10 5.5 1652 -5.9 Details
4 2026 PECC Fast & Furious Rapid Rapid 2026-04-16 2026-04-30 Nelson Mandela Bay (ENM) 6 1740.6 6 6 1977.3 25.6 Details
5 2026 NMBCU Trials 4 (U16) Standard 2026-04-24 2026-04-25 Nelson Mandela Bay (ENM) 6 1717.9 6 5 1749.8 6.3 Details
6 NMBCU Trials 3 2026 (U16) Standard 2026-04-18 2026-04-18 Nelson Mandela Bay (ENM) 5 1717.9 5 4.5 1834.6 15.3 Details
7 South African Junior Closed Chess Championship 2026 (U14 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1717.9 9 5 1707.2 -4.1 Details
8 2026 NMBCU Trials 2 (U16) Standard 2026-03-06 2026-03-07 Nelson Mandela Bay (ENM) 6 1721.7 6 4 1696.8 -3.8 Details
9 Pearson Chess Festival 2026 Standard 2026-02-27 2026-02-28 Nelson Mandela Bay (ENM) 5 1746.5 4 2 1660.1 -6.6 Details
10 NMBCU Trial 1 2026 (U16) Standard 2026-02-20 2026-02-21 Nelson Mandela Bay (ENM) 5 1746.5 5 3 1621.6 -11.3 Details
11 Fide in the Bay 2026 (A) Standard 2026-01-24 2026-01-24 Nelson Mandela Bay (ENM) 5 1759.3 5 2.5 1671.8 -9.1 Details
12 2025 Mzansi Individual Championships (U14 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1711.4 6 4 1705.2 -0.6 Details
13 2025 Mzansi Inter Provincial Team Championships (U14 Open) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1711.4 6 6 1909 23.4 Details
14 2025 PE Chess Club Championship (A) Standard 2025-12-05 2025-12-06 Nelson Mandela Bay (ENM) 5 1711.4 5 4 1819.6 11.5 Details
15 Fide in the Bay 2025 (A) Standard 2025-11-29 2025-11-29 Nelson Mandela Bay (ENM) 5 1713.6 5 2.5 1704.1 -1.7 Details
16 PECC - Rapid 2025 (A) Rapid 2025-10-23 2025-10-30 Nelson Mandela Bay (ENM) 6 1734.9 3 2 1497.6 -5.4 Details
17 Fide in the Bay 2025 (A) Rapid 2025-10-04 2025-10-04 Nelson Mandela Bay (ENM) 7 1734.9 7 3 1548 -9.8 Details
18 PECC - Club Blitz 2025 Blitz 2025-09-18 2025-09-18 Nelson Mandela Bay (ENM) 6 1738.4 6 6 1952.8 5.5 Details
19 EC Closed 2025 (U14 Boys) Standard 2025-09-06 2025-09-07 Nelson Mandela Bay (ENM) 6 1738.4 6 4 1676.1 -7.9 Details
20 FIDE in the Bay 2025 (A) Standard 2025-08-30 2025-08-30 Nelson Mandela Bay (ENM) 5 1730.2 5 3 1805.2 8 Details
21 UCC Mind Over Board 2025 (A) Classical 2025-08-01 2025-08-03 Nelson Mandela Bay (ENM) 5 1730.2 5 3.5 1697.9 -2.2 Details
22 Eastern Cape Inter-Regional Team Chess Championship 2025 (U14) Standard 2025-07-10 2025-07-11 Amathole (EAL) 5 1774 5 3 1535.2 -22.7 Details
23 South African Open 2025 (U14 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1774 5 4 1746.4 -2 Details
24 South African Open 2025 (Blitz) Blitz 2025-07-02 2025-07-02 Johannesburg Metro (GJM) 9 1774 9 4 1588.6 -6.4 Details
25 NMBCU Closed 2025 (U14) Standard 2025-06-13 2025-06-14 Nelson Mandela Bay (ENM) 6 1750.5 6 5 1838.4 10.6 Details
26 NMBCU Open 2025 (B) Standard 2025-05-23 2025-05-24 Nelson Mandela Bay (ENM) 6 1707.5 6 5 1814.8 13.1 Details
27 NMBCU Trial 4 2025 (U14) Standard 2025-05-09 2025-05-10 Nelson Mandela Bay (ENM) 6 1707.5 6 4.5 1724.5 2.2 Details
28 EC Open 2025 (U8-U14 Boys) Standard 2025-05-02 2025-05-02 Buffalo City (EBC) 7 1707.5 7 6.5 1892.8 28.2 Details
29 Karen Ashworth 2025 (A) Standard 2025-04-26 2025-04-26 Nelson Mandela Bay (ENM) 5 1707.5 5 2.5 1552.4 -15.6 Details
30 NMB 3rd Trials 2025 (U14) Standard 2025-04-11 2025-04-12 Nelson Mandela Bay (ENM) 6 1679.1 6 5 1705.3 3.3 Details
31 2025 Buffalo City Chess Trials 1 (U14) Standard 2025-03-22 2025-03-22 Buffalo City (EBC) 5 1679.1 5 5 1720.8 5.8 Details
32 NMB 2nd Trials 2025 (U14) Standard 2025-03-07 2025-03-08 Nelson Mandela Bay (ENM) 6 1629.7 6 5 1796 19.6 Details
33 Pearson High Chess Festival 2025 (C) Standard 2025-02-21 2025-02-22 Nelson Mandela Bay (ENM) 5 1570.1 5 5 1752.9 18.8 Details
34 NMBCH Trial 1 2025 (U14) Standard 2025-02-14 2025-02-15 Nelson Mandela Bay (ENM) 6 1570.1 6 5 1719.5 17.8 Details
35 NMBCU vs BCC Derby Chess Invitational 2025 (U14) Standard 2025-01-10 2025-01-11 Nelson Mandela Bay (ENM) 5 1559.5 5 3 1656.2 9 Details
36 NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A) Blitz 2025-01-12 2025-01-12 Nelson Mandela Bay (ENM) 9 1559.5 9 5.5 1524.6 -1.4 Details
37 EL Junior Closed 2024 (U14) Standard 2024-11-23 2024-11-23 Buffalo City (EBC) 5 1551.1 5 4 1604.6 6 Details
38 Grey Junior School Chess Team Championship 2024 (Senior) Rapid 2024-11-02 2024-11-02 Nelson Mandela Bay (ENM) 5 1549.6 5 3.5 1568.1 1.1 Details
39 NMBCU Top Schools Final 2024 (Primary School) Standard 2024-10-19 2024-10-29 Nelson Mandela Bay (ENM) 3 1562.6 3 0.5 1184.3 -21.4 Details
40 NMBCU Top Schools 2024 (Senior Primary) Rapid 2024-10-12 2024-10-12 Nelson Mandela Bay (ENM) 5 1562.6 5 5 1690.5 12.1 Details
41 NMBCU Club League 2024 (A) Standard 2024-07-24 2024-09-22 Nelson Mandela Bay (ENM) 6 1553.2 1 0 1164.1 -7.9 Details
42 NMBCU Closed 2024 (U14) Standard 2024-09-20 2024-09-21 Nelson Mandela Bay (ENM) 6 1553.2 6 5 1672.4 14.7 Details
43 NMBCU Trial 5 2024 (U16) Standard 2024-08-16 2024-08-17 Nelson Mandela Bay (ENM) 6 1641.6 6 3.5 1380.9 -29.9 Details
44 NMB Open 2024 (A) Standard 2024-08-02 2024-08-04 Nelson Mandela Bay (ENM) 6 1641.6 4 1 1241.6 -35.3 Details
45 Karen Ashworth 2024 (A) Standard 2024-07-19 2024-07-20 Nelson Mandela Bay (ENM) 6 1632 6 4 1724.7 11.1 Details
46 NMBCU Trials 4 2024 (U14) Standard 2024-07-12 2024-07-13 Nelson Mandela Bay (ENM) 6 1632 6 3.5 1537.2 -11 Details
47 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1587.2 8 6 1730.5 28 Details
48 NMBCU Trial 3 2024 (U14) Standard 2024-05-10 2024-05-11 Nelson Mandela Bay (ENM) 6 1560.7 6 5 1695.2 15.9 Details
49 South African Junior Closed Chess Championship 2024 (U12 Open) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1560.7 9 5 1560.2 0.6 Details
50 NMBCU Trials 2 2024 (U14) Standard 2024-04-12 2024-04-13 Nelson Mandela Bay (ENM) 6 1549.8 6 4.5 1606.9 6.8 Details
Game statistics ( )
Games 6
Wins 3
Draws 0
Losses 3
White 3
Black 3
White wins 1
Black wins 2
Score 3
Percent 50
Dp 0
AOR 1724.8
Performance 1724.8
Game statistics ()
Games 79
Wins 46
Draws 8
Losses 25
White 41
Black 38
White wins 24
Black wins 22
Score 50
Percent 63.3
Dp 113
AOR 1586.4
Performance 1699.4
Game statistics (History)
Games 440
Wins 281
Draws 37
Losses 122
White 219
Black 221
White wins 144
Black wins 137
Score 299.5
Percent 68.1
Dp 153.6
AOR 1451.9
Performance 1605.4
Rankings (Main)
National
Overall 666
Gender 628
Age group 62
Gender/Age 54
Provincial
Overall 60
Gender 57
Age group 11
Gender/Age 10
Regional
Overall 33
Gender 31
Age group 5
Gender/Age 5
Rankings (Standard)
National
Overall 660
Gender 618
Age group 66
Gender/Age 58
Provincial
Overall 58
Gender 55
Age group 11
Gender/Age 10
Regional
Overall 28
Gender 26
Age group 5
Gender/Age 5
Rankings (Rapid)
National
Overall 625
Gender 564
Age group 104
Gender/Age 89
Provincial
Overall 42
Gender 40
Age group 10
Gender/Age 9
Regional
Overall 13
Gender 13
Age group 4
Gender/Age 4
Rankings (Blitz)
National
Overall 130
Gender 127
Age group 4
Gender/Age 4
Provincial
Overall 9
Gender 9
Age group 1
Gender/Age 1
Regional
Overall 6
Gender 6
Age group 1
Gender/Age 1
Performance ( )
Games 6
Score 3
Percent 50
Aor 1724.8
Dp 0
Prat 1724.8
Performance ()
Games 79
Score 50
Percent 63.3
Aor 1586.4
Dp 113
Prat 1699.4
Performance (12 months)
Games 133
Score 88
Percent 66.2
Aor 1578.2
Dp 137.4
Prat 1715.6
Performance (History)
Games 440
Score 299.5
Percent 68.1
Aor 1451.9
Dp 153.6
Prat 1605.4
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Prinsloo, L (Liam) 17 10 7 2022 NMB Junior Trials 2 (U10) 2026 NMBCU Trials 4 (U16) Details
Overall 2 Banda, B (Benjamin) 11 7 4 NMBCU Trial 3 2022 (U12) 2026 PECC Fast & Furious Blitz I Details
Overall 3 Claassen, E (Enrique) 9 7 2 2022 NMB Junior Trials 2 (U10) NMBCU Closed 2024 (U14) Details
Overall 4 Driscoll, S (Samuel) 9 5 4 PECC Blitz Closed 2022 2025 PE Chess Club Championship (A) Details
Overall 5 Step, N (Nicholas) 9 4 5 NMBCU Trials 4 2024 (U14) NMBCU Trials 5 2026 (U16) Details
Standard 1 Prinsloo, L (Liam) 15 8 7 2022 NMB Junior Trials 2 (U10) 2026 NMBCU Trials 4 (U16) Details
Standard 2 Claassen, E (Enrique) 9 7 2 2022 NMB Junior Trials 2 (U10) NMBCU Closed 2024 (U14) Details
Standard 3 Step, N (Nicholas) 8 4 4 NMBCU Trials 4 2024 (U14) NMBCU Trials 5 2026 (U16) Details
Standard 4 Banda, B (Benjamin) 8 5 3 NMBCU Trial 3 2022 (U12) 2026 NMBCU Trials 4 (U16) Details
Standard 5 Nell, C (Chelsea Jane) 7 5 2 NMB 1st Trials 2023 (U12) FIDE in the Bay 2025 (A) Details
Rapid 1 Kapp, J (Jacinto) 3 3 0 PECC 20/20 2022 2026 PECC Fast & Furious Rapid Details
Rapid 2 Peter, NM (Neathan Mninawa) 3 2 1 2022 Westering Tournament (Rapid) Bergman Cup 2023 Details
Rapid 3 Twigg, G (Garen) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details
Rapid 4 Kleinhans, R (Raphael) 2 1 1 PECC - Rapid 2025 (A) 2026 PECC Fast & Furious Rapid Details
Rapid 5 Banda, B (Benjamin) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details
Blitz 1 Brown, N (Nathan) 2 2 0 2022 Westering Tournament (Blitz) PECC - Club Blitz 2025 Details
Blitz 2 Dakin, BR (Brett Russell) 2 1 1 PECC Blitz Closed 2022 2026 PECC Fast & Furious Blitz I Details
Blitz 3 Nevin, TW (Tyler William) 2 1 1 2022 Westering Tournament (Blitz) South African Open 2025 (Blitz) Details
Blitz 4 Prinsloo, L (Liam) 2 2 0 2022 Madibaz Tournament (Primary School) PECC - Club Blitz 2025 Details
Blitz 5 Driscoll, S (Samuel) 2 2 0 PECC Blitz Closed 2022 PECC - Club Blitz 2025 Details