Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Samuel Chang

110088674
Buffalo City (EBC)
Personal
Main rating
Rating 1730.1
K-factor 28
Floor 1246.2
Highest 1746.2 (2026-04-01)
Min/Max +/- allowed 76
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1673.2
Final +/- 0
New Rating
()
Rating 1730.1
K-factor 28
Floor 1246.2
Highest 1746.2 (2026-04-01)
Min/Max +/- allowed 76.1
Standard rating
Rating 1727.1
K-factor 28
Floor 1247
Highest 1747 (2026-04-01)
Min/Max +/- allowed 76.1
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1673.2
Final +/- 0
New Rating
()
Rating 1727.1
K-factor 28
Floor 1247
Highest 1747 (2026-04-01)
Min/Max +/- allowed 76.1
Rapid rating
Rating 1249
K-factor 36
Floor 749
Highest 1249 (2024-02-01)
Min/Max +/- allowed 154.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 935.1
Final +/- 0
New Rating
()
Rating 1249
K-factor 36
Floor 749
Highest 1249 (2024-02-01)
Min/Max +/- allowed 154.6
Blitz rating
Rating 1309.1
K-factor 36
Floor 809.1
Highest 1309.1 (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 1309.1
K-factor 36
Floor 809.1
Highest 1309.1 (2025-05-05)
Min/Max +/- allowed 141.9
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 Buffalo City Chess Trials 4 (U18) Standard 2026-05-29 2026-05-30 Buffalo City (EBC) 5 1746.2 4 2.5 1557 -16.1 Details
2 Eastern Cape Open 2026 (Open) Standard 2026-04-10 2026-04-12 Buffalo City (EBC) 7 1710.4 7 4 1833 19.4 Details
3 South African Junior Closed Chess Championship 2026 (U16 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1710.4 9 5.5 1761.4 16.4 Details
4 Grey College Team Championship 2026 (Prestige) Standard 2026-02-20 2026-02-21 Mangaung (FMB) 5 1714.9 5 4 1663.5 -3.2 Details
5 2025 Mzansi Individual Championships (U16 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1693.9 6 4.5 1788.5 11.8 Details
6 2025 Mzansi Inter Provincial Team Championships (U16 Open) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1693.9 6 3.5 1720.4 3.2 Details
7 EC Closed 2025 (U16 Open) Standard 2025-09-06 2025-09-07 Nelson Mandela Bay (ENM) 6 1654 6 5 1868.1 28.6 Details
8 2025 Buffalo City Chess Trials 3 (U16) Standard 2025-05-10 2025-05-10 Buffalo City (EBC) 5 1658.7 4 4 1761.6 8.6 Details
9 EC Open 2025 (Open) Standard 2025-05-02 2025-05-02 Buffalo City (EBC) 7 1658.7 7 4 1574.2 -12 Details
10 UFH Open 2025 (A) Standard 2025-04-19 2025-04-19 Buffalo City (EBC) 7 1625.4 6 4 1603.2 -2.6 Details
11 UFH Open 2025 (Blitz) Blitz 2025-04-18 2025-04-18 Buffalo City (EBC) 7 1625.4 7 4 1686.5 2.1 Details
12 South African Junior Closed Chess Championships 2025 (U16 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1625.4 9 4.5 1713.2 17.6 Details
13 2025 Buffalo City Chess Trials 1 (U16) Standard 2025-03-22 2025-03-22 Buffalo City (EBC) 5 1625.4 5 5 1684.3 6.8 Details
14 Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1560.9 7 4.5 1655.2 14.8 Details
15 EL Junior Closed 2024 (U16) Standard 2024-11-23 2024-11-23 Buffalo City (EBC) 5 1560.9 5 4.5 1716.7 16.1 Details
16 East London Open 2024 (A) Standard 2024-10-04 2024-10-05 Buffalo City (EBC) 5 1549.7 4 2 1655.8 8 Details
17 5th BC Trials 2024 (U18-Adult) Standard 2024-08-24 2024-08-24 Buffalo City (EBC) 5 1535.6 5 3.5 1629.9 10.1 Details
18 BC 4th HS Trials 204 (U18-Adult) Standard 2024-07-20 2024-07-20 Buffalo City (EBC) 5 1604.1 5 3 1520.7 -7.1 Details
19 South African Open Chess Championship 2024 (A) Classical 2024-06-29 2024-07-07 Ethekwini (KED) 11 1604.1 11 5 1455 -41.8 Details
20 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1584.5 9 4.5 1656.4 14 Details
21 South African Junior Closed Chess Championship 2024 (U14 Open) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1554.2 9 5.5 1702 32.4 Details
22 BC Chess HS Trials 3 2024 (U18-Adult) Standard 2024-05-04 2024-05-04 Buffalo City (EBC) 5 1554.2 5 3 1434.5 -10.8 Details
23 UFH Open 2024 (A) Standard 2024-04-13 2024-04-14 Amathole (EAL) 7 1529.2 7 4 1707.5 17.8 Details
24 Grey College Team Championship 2024 (A) Standard 2024-02-23 2024-02-24 Mangaung (FMB) 5 1543.6 5 2.5 1429.4 -10.3 Details
25 Chess Vikings VP-Mall Blitz 2024 (A) Blitz 2024-01-27 2024-01-27 Buffalo City (EBC) 9 1554.2 9 4 1414.3 -7.5 Details
26 Chess Vikings Exam Rapid 2023 (A) Rapid 2023-11-04 2023-11-04 Buffalo City (EBC) 7 1556.8 6 2.5 1528.8 -1.9 Details
27 4th BC HS Trials 2023 (U18A-Adult) Standard 2023-08-26 2023-08-26 Cape Winelands (WCW) 5 1576.3 5 3 1414.1 -13.8 Details
28 2023 SA Schools Winter Games (U15 Open) Standard 2023-07-04 2023-07-06 West Rand (GWR) 7 1616.8 7 3.5 1408.9 -29 Details
29 Youth Day Chess Festival 2023 (B) Standard 2023-06-24 2023-06-24 Buffalo City (EBC) 5 1481.8 5 5 1790.4 33.4 Details
30 2023 EC Schools Provincial Winter Games (U15 Boys) Standard 2023-06-02 2023-06-03 Buffalo City (EBC) 6 1481.8 6 5 1692 24.7 Details
31 EL Schools Winter Trials 2023 (U15 Boys) Standard 2023-05-13 2023-05-13 Buffalo City (EBC) 5 1457.6 5 4 1531.8 8.1 Details
32 2023 BCM Schools Winter Games District Championships (U15 Boys) Standard 2023-05-20 2023-05-20 Buffalo City (EBC) 5 1457.6 5 3.5 1535.5 7 Details
33 BC Chess Trials 1 of 5 2023 (Prestige) Standard 2023-04-29 2023-04-29 Buffalo City (EBC) 5 1494 4 0 1088.7 -30.2 Details
34 2023 South African Junior Closed Chess Championships (U14 Open) Classical 2023-03-31 2023-04-04 Chess South Africa (CSA) 9 1494 9 4.5 1525 7.4 Details
35 3rd Vikings Champs 2023 (Prestige) Standard 2023-03-25 2023-03-25 Buffalo City (EBC) 5 1501.2 5 2.5 1445.9 -4.6 Details
36 2nd Master Vikings 2023 Standard 2023-02-23 2023-02-23 Buffalo City (EBC) 5 1536.8 5 2 1469.3 -7.3 Details
37 Master Vikings 2023 Standard 2023-02-11 2023-02-11 Buffalo City (EBC) 5 1536.8 5 2 1389 -15.1 Details
38 2022 South African Junior Wild Card Chess Championships (U14 Open) Classical 2022-12-09 2022-12-12 4 Knights (4K) 7 1443.7 7 6 1693.7 42.2 Details
39 2022 South African Junior Team Chess Championships (U14 Open) Classical 2022-12-04 2022-12-08 4 Knights (4K) 7 1443.7 7 4 1537.4 16.2 Details
40 Slum Knights 5th 2022 (Open) Standard 2022-10-22 2022-10-22 Buffalo City (EBC) 5 1436.3 5 3 1476.8 4.6 Details
41 Slum Knights 2022 (A) Rapid 2022-08-06 2022-08-06 Buffalo City (EBC) 5 1424.7 5 3.5 1524.4 7.2 Details
42 BC Chess Trials 5 of 5 2022 (A) Rapid 2022-06-11 2022-06-11 Buffalo City (EBC) 10 1439.4 10 5 1320.6 -9.1 Details
43 BC Chess 4th Border Trials 2022 (A) Rapid 2022-05-21 2022-05-21 Buffalo City (EBC) 10 1428.6 10 6 1509.8 6.9 Details
44 South African Junior Closed Chess Championships 2022 (U12 Open) Classical 2022-03-28 2022-04-02 Chess South Africa (CSA) 11 1430.5 11 5.5 1428.5 -1.4 Details
45 BC Trials 2 2022 (U18-Open) Standard 2022-02-19 2022-02-19 Buffalo City (EBC) 5 1450.4 5 3 1373.5 -2.8 Details
46 BC Trials 1 2022 (U18A+Open) Standard 2022-02-11 2022-02-11 Buffalo City (EBC) 5 1450.4 5 3 1350 -9.6 Details
47 2021 Eastern Cape Schools Provincial Summer Championships (Boys) Standard 2021-10-29 2021-10-30 Buffalo City (EBC) 6 1344.3 6 5 1512.8 19.9 Details
48 2021 BCM Schools Closed Standard 2021-10-16 2021-10-16 Buffalo City (EBC) 5 1344.3 5 4 1568.9 22.6 Details
49 Young Buffalos Closed 2021 (A) Standard 2021-09-11 2021-09-11 Buffalo City (EBC) 5 1335 5 3 1379.3 5 Details
50 Mortal Kombat 2021 (A) Standard 2021-04-10 2021-04-10 Buffalo City (EBC) 5 1306.9 5 4.5 1471.7 15.6 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 25
Wins 13
Draws 6
Losses 6
White 12
Black 13
White wins 6
Black wins 7
Score 16
Percent 64
Dp 119
AOR 1610.2
Performance 1729.2
Game statistics (History)
Games 611
Wins 325
Draws 45
Losses 241
White 302
Black 309
White wins 164
Black wins 161
Score 347.5
Percent 56.9
Dp 58.4
AOR 1294.1
Performance 1352.5
Rankings (Main)
National
Overall 429
Gender 400
Age group 36
Gender/Age 33
Provincial
Overall 33
Gender 31
Age group 4
Gender/Age 4
Regional
Overall 11
Gender 11
Age group 2
Gender/Age 2
Rankings (Standard)
National
Overall 416
Gender 388
Age group 36
Gender/Age 33
Provincial
Overall 29
Gender 27
Age group 4
Gender/Age 4
Regional
Overall 11
Gender 11
Age group 2
Gender/Age 2
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 25
Score 16
Percent 64
Aor 1610.2
Dp 119
Prat 1729.2
Performance (12 months)
Games 43
Score 29
Percent 67.4
Aor 1607.4
Dp 148.3
Prat 1755.6
Performance (History)
Games 611
Score 347.5
Percent 56.9
Aor 1294.1
Dp 58.4
Prat 1352.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Sibanda, T (Takudzwa) 11 7 4 Swiss Vikings vs South Park 1st 2018 BC Chess Trials 1 of 5 2023 (Prestige) Details
Overall 2 Lin, C (Chenyi) 10 2 8 3rd Buffalo Trials 2018 (U12A) East London Open 2024 (A) Details
Overall 3 Botha, T (Tyler) 10 3 7 Vikings League 4 of 6 2019 (B) 2026 Buffalo City Chess Trials 4 (U18) Details
Overall 4 Becker, M (Matthew) 9 5 4 3rd Border Vikings Chess League 2018 (A) BC Chess HS Trials 3 2024 (U18-Adult) Details
Overall 5 Pearson, E (Ethan) 9 2 7 Vikings League 3 of 6 2019 (A) EL Schools Winter Trials 2023 (U15 Boys) Details
Standard 1 Botha, T (Tyler) 10 3 7 Vikings League 4 of 6 2019 (B) 2026 Buffalo City Chess Trials 4 (U18) Details
Standard 2 Sibanda, T (Takudzwa) 9 7 2 Swiss Vikings vs South Park 1st 2018 BC Chess Trials 1 of 5 2023 (Prestige) Details
Standard 3 Becker, M (Matthew) 8 4 4 3rd Border Vikings Chess League 2018 (A) BC Chess HS Trials 3 2024 (U18-Adult) Details
Standard 4 Sparg, N (Nathan) 7 4 3 Buffalo City Trials 1 of 5 2019 (U16) 3rd Vikings Champs 2023 (Prestige) Details
Standard 5 Pearson, E (Ethan) 7 2 5 Vikings League 3 of 6 2019 (A) EL Schools Winter Trials 2023 (U15 Boys) Details
Rapid 1 Meise, K (Keagen) 3 1 2 Vikings Rapid 2 of 2 2019 Slum Knights 2022 (A) Details
Rapid 2 Becker, R (Robyn) 3 1 2 Vikings Closed Sunday Rapid 2018 BC Chess Trials 5 of 5 2022 (A) Details
Rapid 3 Lin, C (Chenyi) 3 0 3 3rd Buffalo Trials 2018 (U12A) BC Chess Trials 5 of 5 2022 (A) Details
Rapid 4 Pearson, D (Dane) 3 2 1 BC Chess 4th Border Trials 2022 (A) Chess Vikings Exam Rapid 2023 (A) Details
Rapid 5 Chang, S (Sebastian) 3 1 2 Vikings Closed Sunday Rapid 2018 BC Chess 4th Border Trials 2022 (A) Details
Blitz 1 Mafanya, K (Kulasande) 2 0 2 2019 UFH Heritage (Blitz) UFH Open 2025 (Blitz) Details