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

PLAYER PAGE

Sebastian Kapp

1120140436
Nelson Mandela Bay (ENM)
Personal
Main rating
Rating 1727.6
K-factor 28
Floor 1274
Highest 1774 (2025-07-01)
Min/Max +/- allowed 73
Rating Change
()
Games 14
Score 11
We 9.27
SWe 1.06
Temp +/- 29.6
Penalties 0
Weight perform 1753.5
Final +/- +29.6
New Rating
()
Rating 1757.2
K-factor 28
Floor 1274
Highest 1774 (2025-07-01)
Min/Max +/- allowed 73.2
Standard rating
Rating 1680.9
K-factor 28
Floor 1278
Highest 1778 (2026-01-01)
Min/Max +/- allowed 72.8
Rating Change
()
Games 11
Score 8
We 6.51
SWe 1.49
Temp +/- 41.6
Penalties 0
Weight perform 1668.1
Final +/- +41.6
New Rating
()
Rating 1722.5
K-factor 28
Floor 1278
Highest 1778 (2026-01-01)
Min/Max +/- allowed 72.8
Rapid rating
Rating 1661.9
K-factor 28
Floor 1161.9
Highest 1661.9 (2026-09-01)
Min/Max +/- allowed 85.9
Rating Change
()
Games 3
Score 3
We 2.58
SWe 0.42
Temp +/- 11.8
Penalties 0
Weight perform 1786.8
Final +/- +85.9
New Rating
()
Rating 1747.8
K-factor 28
Floor 1247.8
Highest 1747.8 (2026-10-01)
Min/Max +/- allowed 76
Blitz rating
Rating 1651.2
K-factor 28
Floor 1151.2
Highest 1651.2 (2026-08-01)
Min/Max +/- allowed 87.2
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1617.1
Final +/- 0
New Rating
()
Rating 1651.2
K-factor 28
Floor 1151.2
Highest 1651.2 (2026-08-01)
Min/Max +/- allowed 87.2
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 EC Schools Chess Championships 2026 (U15 Boys) Standard 2026-10-09 2026-10-10 Buffalo City (EBC) 5 1727.6 5 3.5 1685.3 8.2 Details
2 Eastern Cape Closed Championship 2026 (U16 Open) Standard 2026-09-25 2026-09-26 Sarah Baartman (ESB) 6 1727.6 6 4.5 1811.2 14.1 Details
3 Eastern Cape Chess Festival 2026 (Inter-Regionals U16) Rapid 2026-09-25 2026-09-25 Sarah Baartman (ESB) 4 1727.6 3 3 1911.5 7.3 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 NMB & SB District Summer Schools Individual Finals 2026 (U15 Boys) Rapid 2026-08-29 2026-08-29 Nelson Mandela Bay (ENM) 5 1727.6 5 5 2002.3 40.9 Details
2 2026 PECC Presidents Cup (A) Standard 2026-07-30 2026-08-27 Nelson Mandela Bay (ENM) 5 1727.6 5 3.5 1630.4 6.6 Details
3 NMB District Schools Individual Finals 2026 (U15 Boys) Rapid 2026-08-22 2026-08-22 Nelson Mandela Bay (ENM) 5 1727.6 4 3 1437.9 -8.8 Details
4 NMB Closed 2026 (U16) Standard 2026-08-15 2026-08-15 Nelson Mandela Bay (ENM) 5 1727.6 5 3.5 1705 1.7 Details
5 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
6 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
7 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
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 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
22 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
23 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
24 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
25 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
26 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
27 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
28 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
29 South African Open 2025 (U14 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1774 5 4 1746.4 -2 Details
30 South African Open 2025 (Blitz) Blitz 2025-07-02 2025-07-02 Johannesburg Metro (GJM) 9 1774 9 4 1588.6 -6.4 Details
31 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
32 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
33 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
34 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
35 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
36 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
37 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
38 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
39 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
40 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
41 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
42 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
43 EL Junior Closed 2024 (U14) Standard 2024-11-23 2024-11-23 Buffalo City (EBC) 5 1551.1 5 4 1604.6 6 Details
44 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
45 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
46 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
47 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
48 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
49 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
50 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
Game statistics ( )
Games 5
Wins 3
Draws 1
Losses 1
White 2
Black 3
White wins 1
Black wins 2
Score 3.5
Percent 70
Dp 170
AOR 1515.3
Performance 1685.3
Game statistics ()
Games 112
Wins 70
Draws 12
Losses 30
White 56
Black 56
White wins 36
Black wins 34
Score 76
Percent 67.9
Dp 151.8
AOR 1560
Performance 1711.8
Game statistics (History)
Games 473
Wins 305
Draws 41
Losses 127
White 234
Black 239
White wins 156
Black wins 149
Score 325.5
Percent 68.8
Dp 159.9
AOR 1455
Performance 1614.9
Rankings (Main)
National
Overall 460
Gender 432
Age group 42
Gender/Age 36
Provincial
Overall 39
Gender 37
Age group 6
Gender/Age 6
Regional
Overall 26
Gender 24
Age group 4
Gender/Age 4
Rankings (Standard)
National
Overall 603
Gender 568
Age group 68
Gender/Age 59
Provincial
Overall 52
Gender 49
Age group 11
Gender/Age 10
Regional
Overall 28
Gender 26
Age group 5
Gender/Age 5
Rankings (Rapid)
National
Overall 116
Gender 114
Age group 9
Gender/Age 9
Provincial
Overall 6
Gender 6
Age group 1
Gender/Age 1
Regional
Overall 4
Gender 4
Age group 1
Gender/Age 1
Rankings (Blitz)
National
Overall 90
Gender 89
Age group 4
Gender/Age 4
Provincial
Overall 9
Gender 9
Age group 1
Gender/Age 1
Regional
Overall 7
Gender 7
Age group 1
Gender/Age 1
Performance ( )
Games 5
Score 3.5
Percent 70
Aor 1515.3
Dp 170
Prat 1685.3
Performance ()
Games 112
Score 76
Percent 67.9
Aor 1560
Dp 151.8
Prat 1711.8
Performance (12 months)
Games 137
Score 94.5
Percent 69
Aor 1557.8
Dp 161.3
Prat 1719.1
Performance (History)
Games 473
Score 325.5
Percent 68.8
Aor 1455
Dp 159.9
Prat 1614.9
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) 12 7 5 NMBCU Trial 3 2022 (U12) 2026 PECC Presidents Cup (A) Details
Overall 3 Driscoll, S (Samuel) 10 5 5 PECC Blitz Closed 2022 Checkmate in Gqeberha 2026 (A) Details
Overall 4 Step, N (Nicholas) 10 5 5 NMBCU Trials 4 2024 (U14) NMB Closed 2026 (U16) Details
Overall 5 Claassen, E (Enrique) 9 7 2 2022 NMB Junior Trials 2 (U10) NMBCU Closed 2024 (U14) Details
Standard 1 Prinsloo, L (Liam) 15 8 7 2022 NMB Junior Trials 2 (U10) 2026 NMBCU Trials 4 (U16) Details
Standard 2 Step, N (Nicholas) 9 5 4 NMBCU Trials 4 2024 (U14) NMB Closed 2026 (U16) Details
Standard 3 Claassen, E (Enrique) 9 7 2 2022 NMB Junior Trials 2 (U10) NMBCU Closed 2024 (U14) Details
Standard 4 Banda, B (Benjamin) 9 5 4 NMBCU Trial 3 2022 (U12) 2026 PECC Presidents Cup (A) 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 Mangala, S (Sibonelo) 2 0 2 Fide in the Bay 2025 (A) NMB District Schools Individual Finals 2026 (U15 Boys) Details
Rapid 4 Twigg, G (Garen) 2 1 1 2022 Madibaz Tournament (Primary School Team) 2022 Madibaz Tournament (Primary School Team) Details
Rapid 5 Muller, K (Kaden) 2 1 1 PECC 20/20 2022 Checkmate in Gqeberha 2026 (A) Details
Blitz 1 Driscoll, S (Samuel) 2 2 0 PECC Blitz Closed 2022 PECC - Club Blitz 2025 Details
Blitz 2 Brown, N (Nathan) 2 2 0 2022 Westering Tournament (Blitz) PECC - Club Blitz 2025 Details
Blitz 3 Dakin, BR (Brett Russell) 2 1 1 PECC Blitz Closed 2022 2026 PECC Fast & Furious Blitz I Details
Blitz 4 Nel, R (Ruhan) 2 1 1 2022 Westering Tournament (Blitz) PECC Edgar Hill 2023 Details
Blitz 5 Prinsloo, L (Liam) 2 2 0 2022 Madibaz Tournament (Primary School) PECC - Club Blitz 2025 Details