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Samuel Chang

110088674
Buffalo City (EBC)
Personal
Main rating
Rating 1710.4
K-factor 28
Floor 1214.9
Highest 1721 (2026-01-01)
Min/Max +/- allowed 79
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1700.7
Final +/- 0
New Rating
()
Rating 1710.4
K-factor 28
Floor 1214.9
Highest 1721 (2026-01-01)
Min/Max +/- allowed 78.9
Standard rating
Rating 1709.3
K-factor 28
Floor 1217.2
Highest 1718.7 (2026-01-01)
Min/Max +/- allowed 79.2
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1700.7
Final +/- 0
New Rating
()
Rating 1709.3
K-factor 28
Floor 1217.2
Highest 1718.7 (2026-01-01)
Min/Max +/- allowed 79.2
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 973.4
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 Grey College Team Championship 2026 (Prestige) Standard 2026-02-20 2026-02-21 Mangaung (FMB) 5 1714.9 5 4 1663.5 0 Details
2 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 0 Details
3 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 0 Details
4 EC Closed 2025 (U16 Open) Standard 2025-09-06 2025-09-07 Nelson Mandela Bay (ENM) 6 1654 6 5 1868.1 0 Details
5 2025 Buffalo City Chess Trials 3 (U16) Standard 2025-05-10 2025-05-10 Buffalo City (EBC) 5 1658.7 4 4 1761.6 0 Details
6 EC Open 2025 (Open) Standard 2025-05-02 2025-05-02 Buffalo City (EBC) 7 1658.7 7 4 1574.2 0 Details
7 UFH Open 2025 (A) Standard 2025-04-19 2025-04-19 Buffalo City (EBC) 7 1625.4 6 4 1603.2 0 Details
8 UFH Open 2025 (Blitz) Blitz 2025-04-18 2025-04-18 Buffalo City (EBC) 7 1625.4 7 4 1686.5 0 Details
9 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 0 Details
10 2025 Buffalo City Chess Trials 1 (U16) Standard 2025-03-22 2025-03-22 Buffalo City (EBC) 5 1625.4 5 5 1684.3 0 Details
11 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 0 Details
12 EL Junior Closed 2024 (U16) Standard 2024-11-23 2024-11-23 Buffalo City (EBC) 5 1560.9 5 4.5 1716.7 0 Details
13 East London Open 2024 (A) Standard 2024-10-04 2024-10-05 Buffalo City (EBC) 5 1549.7 4 2 1655.8 0 Details
14 5th BC Trials 2024 (U18-Adult) Standard 2024-08-24 2024-08-24 Buffalo City (EBC) 5 1535.6 5 3.5 1629.9 0 Details
15 BC 4th HS Trials 204 (U18-Adult) Standard 2024-07-20 2024-07-20 Buffalo City (EBC) 5 1604.1 5 3 1520.7 0 Details
16 South African Open Chess Championship 2024 (A) Classical 2024-06-29 2024-07-07 Ethekwini (KED) 11 1604.1 11 5 1455 0 Details
17 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1584.5 9 4.5 1656.4 0 Details
18 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 0 Details
19 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 0 Details
20 UFH Open 2024 (A) Standard 2024-04-13 2024-04-14 Amathole (EAL) 7 1529.2 7 4 1707.5 0 Details
21 Grey College Team Championship 2024 (A) Standard 2024-02-23 2024-02-24 Mangaung (FMB) 5 1543.6 5 2.5 1429.4 0 Details
22 Chess Vikings VP-Mall Blitz 2024 (A) Blitz 2024-01-27 2024-01-27 Buffalo City (EBC) 9 1554.2 9 4 1414.3 0 Details
23 Chess Vikings Exam Rapid 2023 (A) Rapid 2023-11-04 2023-11-04 Buffalo City (EBC) 7 1556.8 6 2.5 1528.8 0 Details
24 4th BC HS Trials 2023 (U18A-Adult) Standard 2023-08-26 2023-08-26 Cape Winelands (WCW) 5 1576.3 5 3 1414.1 0 Details
25 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 0 Details
26 Youth Day Chess Festival 2023 (B) Standard 2023-06-24 2023-06-24 Buffalo City (EBC) 5 1481.8 5 5 1790.4 0 Details
27 2023 EC Schools Provincial Winter Games (U15 Boys) Standard 2023-06-02 2023-06-03 Buffalo City (EBC) 6 1481.8 6 5 1692 0 Details
28 EL Schools Winter Trials 2023 (U15 Boys) Standard 2023-05-13 2023-05-13 Buffalo City (EBC) 5 1457.6 5 4 1531.8 0 Details
29 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 0 Details
30 BC Chess Trials 1 of 5 2023 (Prestige) Standard 2023-04-29 2023-04-29 Buffalo City (EBC) 5 1494 4 0 1088.7 0 Details
31 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 0 Details
32 3rd Vikings Champs 2023 (Prestige) Standard 2023-03-25 2023-03-25 Buffalo City (EBC) 5 1501.2 5 2.5 1445.9 0 Details
33 2nd Master Vikings 2023 Standard 2023-02-23 2023-02-23 Buffalo City (EBC) 5 1536.8 5 2 1469.3 0 Details
34 Master Vikings 2023 Standard 2023-02-11 2023-02-11 Buffalo City (EBC) 5 1536.8 5 2 1389 0 Details
35 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 0 Details
36 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 0 Details
37 Slum Knights 5th 2022 (Open) Standard 2022-10-22 2022-10-22 Buffalo City (EBC) 5 1436.3 5 3 1476.8 0 Details
38 Slum Knights 2022 (A) Rapid 2022-08-06 2022-08-06 Buffalo City (EBC) 5 1424.7 5 3.5 1524.4 0 Details
39 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 0 Details
40 BC Chess 4th Border Trials 2022 (A) Rapid 2022-05-21 2022-05-21 Buffalo City (EBC) 10 1428.6 10 6 1509.8 0 Details
41 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 0 Details
42 BC Trials 2 2022 (U18-Open) Standard 2022-02-19 2022-02-19 Buffalo City (EBC) 5 1450.4 5 3 1373.5 0 Details
43 BC Trials 1 2022 (U18A+Open) Standard 2022-02-11 2022-02-11 Buffalo City (EBC) 5 1450.4 5 3 1350 0 Details
44 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 0 Details
45 2021 BCM Schools Closed Standard 2021-10-16 2021-10-16 Buffalo City (EBC) 5 1344.3 5 4 1568.9 0 Details
46 Young Buffalos Closed 2021 (A) Standard 2021-09-11 2021-09-11 Buffalo City (EBC) 5 1335 5 3 1379.3 0 Details
47 Mortal Kombat 2021 (A) Standard 2021-04-10 2021-04-10 Buffalo City (EBC) 5 1306.9 5 4.5 1471.7 0 Details
48 BC Trials 2 2020 (U16A) Standard 2020-03-07 2020-03-07 Buffalo City (EBC) 5 1308.4 5 2 1130.3 0 Details
49 3rd BC Chess Trials 2020 (U14A) Standard 2020-03-14 2020-03-14 Buffalo City (EBC) 5 1308.4 5 4 1450.1 0 Details
50 BC Trials 2 2020 (U14A) Standard 2020-02-29 2020-02-29 Buffalo City (EBC) 5 1287.8 5 4 1380.5 0 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 5
Wins 4
Draws 0
Losses 1
White 2
Black 3
White wins 2
Black wins 2
Score 4
Percent 80
Dp 255
AOR 1408.5
Performance 1663.5
Game statistics (History)
Games 591
Wins 316
Draws 39
Losses 236
White 292
Black 299
White wins 160
Black wins 156
Score 335.5
Percent 56.8
Dp 57.5
AOR 1281.7
Performance 1339.2
Rankings (Main)
National
Overall 448
Gender 423
Age group 38
Gender/Age 34
Provincial
Overall 32
Gender 29
Age group 4
Gender/Age 4
Regional
Overall 14
Gender 13
Age group 3
Gender/Age 3
Rankings (Standard)
National
Overall 440
Gender 415
Age group 37
Gender/Age 33
Provincial
Overall 29
Gender 26
Age group 4
Gender/Age 4
Regional
Overall 14
Gender 13
Age group 3
Gender/Age 3
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 5
Score 4
Percent 80
Aor 1408.5
Dp 255
Prat 1663.5
Performance (12 months)
Games 61
Score 42.5
Percent 69.7
Aor 1536.2
Dp 167.2
Prat 1703.5
Performance (History)
Games 591
Score 335.5
Percent 56.8
Aor 1281.7
Dp 57.5
Prat 1339.2
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) 9 3 6 Vikings League 4 of 6 2019 (B) Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Championship) 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) 9 3 6 Vikings League 4 of 6 2019 (B) Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Championship) 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 Lin, C (Chenyi) 7 2 5 Buffalo City Trials 4 of 5 2019 (U14A) East London Open 2024 (A) 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 Becker, R (Robyn) 3 1 2 Vikings Closed Sunday Rapid 2018 BC Chess Trials 5 of 5 2022 (A) Details
Rapid 2 Chang, S (Sebastian) 3 1 2 Vikings Closed Sunday Rapid 2018 BC Chess 4th Border Trials 2022 (A) Details
Rapid 3 Meise, K (Keagen) 3 1 2 Vikings Rapid 2 of 2 2019 Slum Knights 2022 (A) Details
Rapid 4 Lin, C (Chenyi) 3 0 3 3rd Buffalo Trials 2018 (U12A) BC Chess Trials 5 of 5 2022 (A) Details
Rapid 5 Pearson, D (Dane) 3 2 1 BC Chess 4th Border Trials 2022 (A) Chess Vikings Exam Rapid 2023 (A) Details
Blitz 1 Mafanya, K (Kulasande) 2 0 2 2019 UFH Heritage (Blitz) UFH Open 2025 (Blitz) Details