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Stephen Porteous

1080139930
Tshwane (GTP)
Personal
Main rating
Rating 1260.2
K-factor 36
Floor 775.5
Highest 1275.5 (2026-03-01)
Min/Max +/- allowed 149
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1239.7
Final +/- 0
New Rating
()
Rating 1260.2
K-factor 36
Floor 775.5
Highest 1275.5 (2026-03-01)
Min/Max +/- allowed 148.9
Standard rating
Rating 1256.8
K-factor 36
Floor 775.5
Highest 1275.5 (2026-03-01)
Min/Max +/- allowed 148.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1239.7
Final +/- 0
New Rating
()
Rating 1256.8
K-factor 36
Floor 775.5
Highest 1275.5 (2026-03-01)
Min/Max +/- allowed 148.9
Rapid rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
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 D3 Tshwane North School Cluster 4&5 Individuals (U18 Mixed) Standard 2026-04-11 2026-04-11 Tshwane (GTP) 5 1275.5 5 2 1195.5 -15.3 Details
2 2026 Lubowski Open Chess Tournament (D1) Standard 2026-03-21 2026-03-22 Tshwane (GTP) 5 1142.2 5 3 1303.7 30.5 Details
3 2026 Chris Greyling Open Tournament (D) Standard 2026-03-14 2026-03-14 Tshwane (GTP) 5 1142.2 5 3 1315.3 31.5 Details
4 2026 Tshwane Chess Registration Tournament (D1) Standard 2026-01-31 2026-01-31 Tshwane (GTP) 5 1101.6 5 3.5 1402.4 15.6 Details
5 2025 Mzansi Individual Championships (U18 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1116 5 0 1107.4 -5 Details
6 2025 Mzansi Inter Provincial Team Championships (U20 Open) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1116 3 0 979 -9 Details
7 2025 Etienne Lewis Closed Chess Tournament (U18) Standard 2025-08-08 2025-08-10 Tshwane (GTP) 7 1102 6 1 1175.3 7.7 Details
8 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U17) Standard 2025-07-26 2025-07-26 Tshwane (GTP) 5 1106.9 5 0 886 -22.4 Details
9 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U18 Open) Standard 2025-05-10 2025-05-10 Tshwane (GTP) 5 1111.9 5 1 1013.4 -9.1 Details
10 2025 Tshwane Chess OPEN Registration Tournament (B1) Standard 2025-01-25 2025-01-25 Tshwane (GTP) 5 1055.4 4 0 879.1 -13.9 Details
11 2024 Etienne Lewis (U18+U20) Standard 2024-08-30 2024-09-01 Tshwane (GTP) 7 1088.5 6 0 956 -16.5 Details
12 2024 Tshwane North School District Cluster 4 & 5 Team League (U17) Standard 2024-07-20 2024-07-20 Tshwane (GTP) 5 1122 5 1 943.2 -16.8 Details
13 District 3 Cluster 4 and 5 Individuals 2024 (U18 Boys) Standard 2024-05-06 2024-05-06 Tshwane (GTP) 5 1162.8 5 1 945 -20.4 Details
14 2022 D3 Cluster City Schools (U15) Standard 2022-04-23 2022-04-23 Tshwane (GTP) 5 1200 4 1 963.2 -18.4 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 20
Wins 10
Draws 3
Losses 7
White 11
Black 9
White wins 8
Black wins 2
Score 11.5
Percent 57.5
Dp 63.8
AOR 1240.5
Performance 1304.2
Game statistics (History)
Games 68
Wins 15
Draws 3
Losses 50
White 33
Black 35
White wins 11
Black wins 4
Score 16.5
Percent 24.3
Dp -218.8
AOR 1301.9
Performance 1083.1
Rankings (Main)
National
Overall 8323
Gender 6749
Age group 995
Gender/Age 839
Provincial
Overall 2868
Gender 2310
Age group 359
Gender/Age 302
Regional
Overall 927
Gender 745
Age group 116
Gender/Age 94
Rankings (Standard)
National
Overall 7340
Gender 5847
Age group 866
Gender/Age 721
Provincial
Overall 2642
Gender 2097
Age group 308
Gender/Age 257
Regional
Overall 931
Gender 744
Age group 105
Gender/Age 87
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 20
Score 11.5
Percent 57.5
Aor 1240.5
Dp 63.8
Prat 1304.2
Performance (12 months)
Games 39
Score 12.5
Percent 32.1
Aor 1333.1
Dp -152.6
Prat 1180.5
Performance (History)
Games 68
Score 16.5
Percent 24.3
Aor 1301.9
Dp -218.8
Prat 1083.1
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Makhubela, K (Kamogelo) 2 0 2 District 3 Cluster 4 and 5 Individuals 2024 (U18 Boys) 2024 Tshwane North School District Cluster 4 & 5 Team League (U17) Details
Overall 2 Stolp, T (Tiaan) 2 1 1 2024 Etienne Lewis (U18+U20) 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U17) Details
Standard 1 Stolp, T (Tiaan) 2 1 1 2024 Etienne Lewis (U18+U20) 2025 Tshwane North School District Cluster 4 & 5 Team League (D3) (U17) Details
Standard 2 Makhubela, K (Kamogelo) 2 0 2 District 3 Cluster 4 and 5 Individuals 2024 (U18 Boys) 2024 Tshwane North School District Cluster 4 & 5 Team League (U17) Details