PLAYER PAGE

Sebastian Stelloh

1150145631
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1660.5
K-factor 28
Floor 1129
Highest 1784.2 (2026-01-01)
Min/Max +/- allowed 72
Rating Change
()
Games 10
Score 8
We 6.26
SWe 1.45
Temp +/- 40.5
Penalties 0
Weight perform 1702
Final +/- +41.6
New Rating
()
Rating 1702
K-factor 28
Floor 1129
Highest 1784.2 (2026-01-01)
Min/Max +/- allowed 72.1
Standard rating
Rating 1663.4
K-factor 28
Floor 1226.2
Highest 1726.2 (2026-04-01)
Min/Max +/- allowed 78.4
Rating Change
()
Games 10
Score 8
We 6.31
SWe 1.69
Temp +/- 47.2
Penalties 0
Weight perform 1702
Final +/- +47.2
New Rating
()
Rating 1710.6
K-factor 28
Floor 1226.2
Highest 1726.2 (2026-04-01)
Min/Max +/- allowed 78.4
Rapid rating
Rating 1442.9
K-factor 32
Floor 1022.1
Highest 1522.1 (2025-11-30)
Min/Max +/- allowed 104.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1438.8
Final +/- 0
New Rating
()
Rating 1442.9
K-factor 32
Floor 1022.1
Highest 1522.1 (2025-11-30)
Min/Max +/- allowed 104.8
Blitz rating
Rating 1309.4
K-factor 36
Floor 809.4
Highest 1309.4 (2025-05-05)
Min/Max +/- allowed 141.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1309.4
K-factor 36
Floor 809.4
Highest 1309.4 (2025-05-05)
Min/Max +/- allowed 141.9
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Knights Watch Winter Classic 2026 (D) Standard 2026-07-04 2026-07-04 Johannesburg Metro (GJM) 5 1660.5 5 4 1755 12.2 Details
2 4th Khelo India - LCA Chess Tournament 2026 (D) Standard 2026-07-12 2026-07-12 Johannesburg Metro (GJM) 5 1660.5 5 4 1845 28.3 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Helpmekaar 2026 (A) Standard 2026-05-31 2026-05-31 Johannesburg Metro (GJM) 5 1679.5 5 1 1581.3 -19 Details
2 Spartans Bishops 2026 (Bishops) Standard 2026-05-01 2026-05-01 Sarah Baartman (ESB) 5 1707.2 5 3 1594.9 -12.2 Details
3 Sixth Knight Riders Juniors Open Chess Tournament 2026 (A+B) Standard 2026-05-10 2026-05-10 Johannesburg Metro (GJM) 5 1707.2 5 3 1604.8 -9.9 Details
4 3rd KHELO INDIA - LCA Chess Tournament 2026 (D) Standard 2026-04-19 2026-04-19 Johannesburg Metro (GJM) 5 1635 5 4.5 1885.1 35.3 Details
5 South African Junior Closed Chess Championship 2026 (U12 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1635 9 6 1810.3 50.7 Details
6 MCA Summer Heat Classic 2026 (Expert) Standard 2026-03-21 2026-03-21 Johannesburg Metro (GJM) 5 1707.2 4 0 1358.4 -38.2 Details
7 Chess Power House Boksburg Open 2026 (B) Standard 2026-03-13 2026-03-13 Ekurhuleni (GE) 5 1707.2 5 4 1667.2 -3.8 Details
8 First Knight Riders Rapid Open Chess Tournament 2026 (A) Rapid 2026-03-15 2026-03-15 Johannesburg Metro (GJM) 6 1707.2 5 1 1269.8 -29.5 Details
9 3rd Knight Riders Juniors Open Chess Tournament 2026 (A) Standard 2026-03-08 2026-03-08 Johannesburg Metro (GJM) 5 1707.2 1 0 1334 -11.2 Details
10 West Rand Juniors 2026 (U12) Standard 2026-03-07 2026-03-07 West Rand (GWR) 5 1707.2 0 0 500 0 Details
11 2nd Knight Riders Juniors Open Chess Tournament 2026 (A+B) Standard 2026-02-21 2026-02-21 Johannesburg Metro (GJM) 5 1765.8 5 4.5 1769.3 1.8 Details
12 2026 JMC Kick off Tournament (A) Standard 2026-02-01 2026-02-01 Johannesburg Metro (GJM) 5 1765.8 5 1.5 1536.7 -22.9 Details
13 2025 Mzansi Individual Championships (U12 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1685.8 6 5 1816.1 17 Details
14 2025 Mzansi Inter Provincial Team Championships (U12 Combined) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1685.8 6 5 1804.2 14.1 Details
15 Gauteng Inter-Region at Emerald Resort 2025 (U12 Championship) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1685.8 5 4 1910.4 24.1 Details
16 Bojanala's Merry ChessMas 2025 (Center Pawns) Standard 2025-11-29 2025-11-29 Bojanala Platina (NBR) 5 1685.8 5 3 1546.4 -12.6 Details
17 MCA Year End Rapid 2025 (U12) Rapid 2025-11-01 2025-11-01 Johannesburg Metro (GJM) 5 1621.2 5 5 1946.7 23.5 Details
18 UJ @20years Open Chess Championship 2025 (E) Standard 2025-10-18 2025-10-18 Johannesburg Metro (GJM) 5 1573 5 5 1725.4 15.9 Details
19 FIDE World Cadet Championships 2025 Classical 2025-09-19 2025-09-30 FIDE (FID) 11 1573 11 4 1501.1 -19.6 Details
20 Fourth Knight Riders Juniors Open Chess Tournament 2025 (C) Standard 2025-08-31 2025-08-31 Johannesburg Metro (GJM) 5 1550.9 4 4 1696.1 11.6 Details
21 GoForChess Junior Chess Championships 2025 (U12) Standard 2025-09-14 2025-09-14 Johannesburg Metro (GJM) 5 1550.9 3 1 1236.3 -17.6 Details
22 JMC Closed 2025 (U12) Standard 2025-08-09 2025-08-10 Johannesburg Metro (GJM) 5 1520.4 5 4 1709.6 21.8 Details
23 South African Open 2025 (U12 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1514.9 5 3.5 1554.4 4 Details
24 Third Knight Riders Junior Open 2025 (B+C) Standard 2025-06-22 2025-06-22 Johannesburg Metro (GJM) 5 1542.2 4 1 1218.6 -25.2 Details
25 Knight Riders Juniors Open Chess Tournament 2025 (A) Standard 2025-05-24 2025-05-24 Johannesburg Metro (GJM) 5 1560.7 0 0 0 0 Details
26 Knight Riders Juniors Open Chess Tournament 2025 (D) Standard 2025-05-24 2025-05-24 Johannesburg Metro (GJM) 5 1560.7 3 3 1671.5 8.6 Details
27 Chess Power House Randburg Rapid 2025 (A) Rapid 2025-05-11 2025-05-11 Johannesburg Metro (GJM) 6 1560.7 4 2 1438.9 -4.4 Details
28 Chess Power House Randburg Rapid 2025 (B) Rapid 2025-05-11 2025-05-11 Johannesburg Metro (GJM) 5 1560.7 4 4 1785.1 8.3 Details
29 Moja Chess Extravaganza 2025 (U12) Classical 2025-04-26 2025-04-28 Johannesburg Metro (GJM) 5 1560.7 5 2.5 1353.9 -23.2 Details
30 2025 Silver Lakes Chess Club Open Chess Tournament (C) Standard 2025-05-03 2025-05-03 Tshwane (GTP) 5 1560.7 5 3 1527 -2.5 Details
31 FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Blitz) Blitz 2025-04-16 2025-04-17 Geece (GRE) 11 1495.7 11 5 1499.9 0.5 Details
32 FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Rapid) Rapid 2025-04-13 2025-04-15 Greece (GRE) 11 1495.7 11 4.5 1513.1 2.3 Details
33 South African Junior Closed Chess Championships 2025 (U10 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1495.7 9 6 1698.2 43.6 Details
34 JMC Crawford Ruimsig 2025 (B) Standard 2025-03-01 2025-03-01 Johannesburg Metro (GJM) 5 1493.3 5 2 1347.3 -14.9 Details
35 Knight Riders Open Chess Tournament 2025 (D) Standard 2025-02-22 2025-02-22 Johannesburg Metro (GJM) 5 1496.4 5 4 1567.1 6.5 Details
36 JMC Rapid The Bridge School 2025 (Open) Rapid 2025-02-23 2025-02-23 Johannesburg Metro (GJM) 7 1496.4 7 4 1432 -4.3 Details
37 2025 Blou Bul Open Chess Tournament (B) Standard 2025-02-08 2025-02-08 Tshwane (GTP) 5 1496.4 5 2 1516.6 1.2 Details
38 JMC Kick Off 2025 (B) Standard 2025-02-02 2025-02-02 Johannesburg Metro (GJM) 5 1496.4 5 2 1351.2 -14.8 Details
39 2025 Tshwane Chess OPEN Registration Tournament (A1) Standard 2025-01-25 2025-01-25 Tshwane (GTP) 5 1555.6 5 0 1115.6 -42.3 Details
40 Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1584.2 7 3.5 1413.9 -27 Details
41 Gauteng Inter-Region at UJ 2024 (U10 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1584.2 5 3 1634.4 6.4 Details
42 Laerskool Doringkloof Primary Open Chess Tournament 2024 (U10) Standard 2024-10-19 2024-10-19 Tshwane (GTP) 5 1582.3 5 4 1586.9 1.3 Details
43 Knight Riders Spring Chess Tournament 2024 (A) Standard 2024-09-28 2024-09-28 Johannesburg Metro (GJM) 5 1609.5 3 2 1584.3 -2 Details
44 2024 Moja Chess Extravaganza (D) Standard 2024-09-25 2024-09-26 Frances Baard (NCF) 5 1609.5 5 3 1437.6 -17.5 Details
45 Bojanala's FIDE In The Sparkling Waters 2024 (Junior Champs) Classical 2024-08-17 2024-08-17 Bojanala Platina (NBR) 5 1497.5 5 4 1664.9 20.6 Details
46 JMC Closed 2024 (U10) Standard 2024-08-09 2024-08-09 Johannesburg Metro (GJM) 5 1497.5 5 5 1776.3 26.6 Details
47 JMC Trinityhouse Randpark Ridge 2024 (U10) Standard 2024-07-13 2024-07-13 Johannesburg Metro (GJM) 5 1458.5 5 4.5 1698.9 24.4 Details
48 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1558.1 8 3.5 1317.1 -45.2 Details
49 JMC Trinityhouse Little Falls 2024 (C) Standard 2024-06-02 2024-06-02 Johannesburg Metro (GJM) 5 1558.1 5 2 1271.4 -28.6 Details
50 South African Junior Closed Chess Championship 2024 (U10 Open) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1480.7 9 6 1603.5 26.8 Details
Game statistics ( )
Games 10
Wins 7
Draws 2
Losses 1
White 5
Black 5
White wins 3
Black wins 4
Score 8
Percent 80
Dp 255
AOR 1545
Performance 1800
Game statistics ()
Games 64
Wins 33
Draws 7
Losses 24
White 32
Black 32
White wins 16
Black wins 17
Score 36.5
Percent 57
Dp 59.8
AOR 1590.3
Performance 1650.1
Game statistics (History)
Games 479
Wins 281
Draws 34
Losses 164
White 237
Black 242
White wins 140
Black wins 141
Score 298
Percent 62.2
Dp 103.8
AOR 1391.7
Performance 1495.5
Rankings (Main)
National
Overall 740
Gender 694
Age group 29
Gender/Age 25
Provincial
Overall 260
Gender 241
Age group 12
Gender/Age 9
Regional
Overall 107
Gender 96
Age group 10
Gender/Age 7
Rankings (Standard)
National
Overall 678
Gender 636
Age group 31
Gender/Age 26
Provincial
Overall 246
Gender 230
Age group 13
Gender/Age 9
Regional
Overall 98
Gender 88
Age group 11
Gender/Age 7
Rankings (Rapid)
National
Overall 649
Gender 582
Age group 65
Gender/Age 53
Provincial
Overall 131
Gender 114
Age group 9
Gender/Age 9
Regional
Overall 62
Gender 57
Age group 3
Gender/Age 3
Rankings (Blitz)
National
Overall 310
Gender 298
Age group 7
Gender/Age 7
Provincial
Overall 110
Gender 102
Age group 5
Gender/Age 5
Regional
Overall 65
Gender 58
Age group 5
Gender/Age 5
Performance ( )
Games 10
Score 8
Percent 80
Aor 1545
Dp 255
Prat 1800
Performance ()
Games 64
Score 36.5
Percent 57
Aor 1590.3
Dp 59.8
Prat 1650.1
Performance (12 months)
Games 119
Score 76.5
Percent 64.3
Aor 1546.9
Dp 121.4
Prat 1668.3
Performance (History)
Games 479
Score 298
Percent 62.2
Aor 1391.7
Dp 103.8
Prat 1495.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Ma, M (Matthew) 8 4 4 JNW Open - Trinityhouse Little Falls 2023 (U10) 2026 JMC Kick off Tournament (A) Details
Overall 2 Joubert, J (Joshua) 7 5 2 2023 South African Junior Closed Chess Championships (U8 Open) Third Knight Riders Junior Open 2025 (B+C) Details
Overall 3 Goncalves, E (Emilio) 6 2 4 JNW Open - Classic - Crawford 2024 (U10) 3rd KHELO INDIA - LCA Chess Tournament 2026 (D) Details
Overall 4 Brits, E (Etienne) 5 2 3 Chess Power House 2023 (C) South African Junior Closed Chess Championship 2026 (U12 Open) Details
Overall 5 Zhu, R (Ryan Yuancheng) 5 4 1 Chess Power House 1st Rapid 2024 (C) MCA Year End Rapid 2025 (U12) Details
Standard 1 Ma, M (Matthew) 7 3 4 JNW Open - Trinityhouse Little Falls 2023 (U10) 2026 JMC Kick off Tournament (A) Details
Standard 2 Joubert, J (Joshua) 7 5 2 2023 South African Junior Closed Chess Championships (U8 Open) Third Knight Riders Junior Open 2025 (B+C) Details
Standard 3 Goncalves, E (Emilio) 6 2 4 JNW Open - Classic - Crawford 2024 (U10) 3rd KHELO INDIA - LCA Chess Tournament 2026 (D) Details
Standard 4 Le Kay, A (Alexa) 5 1 4 JMC 2nd Trials 2022 (U8) JMC Helpmekaar Kollege Tournament 2024 (U10) Details
Standard 5 Mannar, A (Aaryan) 5 2 3 JMC Closed Aug 2023 (U10) GoForChess Junior Chess Championships 2025 (U12) Details
Rapid 1 Zhu, R (Ryan Yuancheng) 3 2 1 Chess Power House 1st Rapid 2024 (C) MCA Year End Rapid 2025 (U12) Details
Rapid 2 Franklin, G (Gabriel) 2 1 1 Chess Power House Rapid 2022 (U8) CPH Chess Clubs Challenge 2022 (Primary Schools) Details
Rapid 3 Brits, E (Etienne) 2 0 2 Chess Power House 1st Rapid 2024 (C) CPH St Andrew's Rapid 2024 (C) Details