Player Page

O'Brien, S (Seth)
Dob: 2005/02/16 (U20)
Gender: Male
Chess SA id: 1050161246
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/03/23 (71 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1333.2
Curent Weighted rating1253.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1333.2
Current floor (min rating allowed)833.2
Current highest rating achieved1333.2
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±137.2
Current Raw change used (final)0.0
Projected new Raw rating1333.2
Projected new Weighed rating1261.9
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1333.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1333.2
Projected new floor833.2
Projected new K-facor36
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1319.9
Curent Weighted rating1242.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1319.9
Current floor (min rating allowed)819.9
Current highest rating achieved1319.9
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±139.8
Current Raw change used (final)0.0
Projected new Raw rating1319.9
Projected new Weighed rating1250.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1319.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1319.9
Projected new floor819.9
Projected new K-facor36
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1240.7
Curent Weighted rating1219.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1240.7
Current floor (min rating allowed)740.7
Current highest rating achieved1240.7
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±156.5
Current Raw change used (final)0.0
Projected new Raw rating1240.7
Projected new Weighed rating1222.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1240.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1240.7
Projected new floor740.7
Projected new K-facor36
Raw rating=Current rating, Weighted rating (WR)Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)740.7
Current highest rating achieved1200.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1200.0
Projected new floor740.7
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1294.4 1267.7 Analysis
1 2024 Tshwane Chess OPEN Registration Tournament (C1) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1257.9 1218.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 1st Knights Open Tournament 2024 (C) 2024/03/23 2024/03/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1294.4 1267.7 Analysis
3 2024 Tshwane Chess OPEN Registration Tournament (C1) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1257.9 1218.0 Analysis
2 Ekurhuleni North Chess Club 2023 (B) 2023/12/09 2023/12/09 Ekurhuleni (GE) Rapid 30 0.60 7 7 5.0 1214.9 1200.0 Analysis
1 2023 Gauteng Top Schools (U19 Mixed) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 3 1.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 6 1 3 6.5 65.0 127.5 1370.3 1497.8
White 6 5 0 1 5.0 83.3 283.3 1378.7 1662.0
Black 4 1 1 2 1.5 37.5 -106.3 1357.9 1251.6
Standard All 10 6 1 3 6.5 65.0 127.5 1370.3 1497.8
White 6 5 0 1 5.0 83.3 283.3 1378.7 1662.0
Black 4 1 1 2 1.5 37.5 -106.3 1357.9 1251.6
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 20 12 2 6 13.0 65.0 127.5 1340.4 1467.9
White 11 10 0 1 10.0 90.9 347.7 1316.4 1664.1
Black 9 2 2 5 3.0 33.3 -141.7 1369.7 1228.0
Standard All 13 7 2 4 8.0 61.5 98.1 1373.0 1471.0
White 7 6 0 1 6.0 85.7 303.6 1353.1 1656.7
Black 6 1 2 3 2.0 33.3 -141.7 1396.1 1254.4
Rapid All 7 5 0 2 5.0 71.4 182.1 1279.9 1462.0
White 4 4 0 0 4.0 100.0 425.0 1252.0 1677.0
Black 3 1 0 2 1.0 33.3 -141.7 1317.0 1175.3
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1080191325 Kale, A (Akhona) 1 1.0 1 0 0 100.0 1214.9 425.0 1639.9 View list
2 1130155274 Nemusombori, L (Livhuwani Nathan) 1 1.0 1 0 0 100.0 1294.4 425.0 1719.4 View list
3 1050161226 Mohjomo, K (Kearabetsoe) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 211092268 Mkhasibe, NZ (Nobuhle) 1 1.0 1 0 0 100.0 1294.4 425.0 1719.4 View list
5 1070105181 Van Loggerenberg, M (Marcus) 1 1.0 1 0 0 100.0 1214.9 425.0 1639.9 View list
6 1110151858 Van De Venter, Z (Zandre) 1 1.0 1 0 0 100.0 1257.9 425.0 1682.9 View list
7 1130136645 Truscott, A (Adriaan) 1 1.0 1 0 0 100.0 1257.9 425.0 1682.9 View list
8 1080141457 Mateman, M (Matthews) 1 1.0 1 0 0 100.0 1214.9 425.0 1639.9 View list
9 1100143726 Elvin, A (Andrew) 1 1.0 1 0 0 100.0 1294.4 425.0 1719.4 View list
10 1070143725 De Swardt, S (Stephan) 1 1.0 1 0 0 100.0 1214.9 425.0 1639.9 View list
11 206050275 De Jager, K (Karli) 1 1.0 1 0 0 100.0 1214.9 425.0 1639.9 View list
12 1120133903 Buchner, E (Emil) 1 1.0 1 0 0 100.0 1257.9 425.0 1682.9 View list
13 2110151735 Ambrose, I (Isabella) 1 0.5 0 1 0 50.0 1294.4 0.0 1294.4 View list
14 1060161242 Nkosi, N (Nkosinathi) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
15 2120135696 Hu-Grobbelaar, L (Lalu) 1 0.0 0 0 1 0.0 1294.4 -425.0 869.4 View list
16 1080119822 Elvin, D (David) 1 0.0 0 0 1 0.0 1214.9 -425.0 789.9 View list
17 1130131224 Minny, O (Oban) 1 0.0 0 0 1 0.0 1257.9 -425.0 832.9 View list
18 1090155592 Maroba, M (Mark) 1 0.0 0 0 1 0.0 1214.9 -425.0 789.9 View list
19 105061707 Kula, VJ (Vuyani) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 1110139982 Kock, L (Luca) 1 0.0 0 0 1 0.0 1257.9 -425.0 832.9 View list