Player Page

Oberholzer, E (Ethan)
Dob: 2002/12/05 (Adult)
Gender: Male
Chess SA id: 102094361
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2024/03/16 (62 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 rating1260.4
Curent Weighted rating1266.2
Curent Weighted performance1155.3
Current official/published rating (highest between Raw, WR and WP)1266.2
Current floor (min rating allowed)819.0
Current highest rating achieved1319.0
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)±152.1
Current Raw change used (final)0.0
Projected new Raw rating1260.4
Projected new Weighed rating1266.0
Projected new Weighted performance1155.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1266.0
Projected effective change (new Official - current Official)-0.2
Projected new highest rating1319.0
Projected new floor819.0
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 rating1272.6
Curent Weighted rating1262.7
Curent Weighted performance1154.5
Current official/published rating (highest between Raw, WR and WP)1272.6
Current floor (min rating allowed)815.5
Current highest rating achieved1315.5
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)±149.5
Current Raw change used (final)0.0
Projected new Raw rating1272.6
Projected new Weighed rating1264.0
Projected new Weighted performance1154.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1272.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1315.5
Projected new floor815.5
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 rating1181.3
Curent Weighted rating1197.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1197.1
Current floor (min rating allowed)700.0
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)±170.3
Current Raw change used (final)0.0
Projected new Raw rating1181.3
Projected new Weighed rating1195.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1195.7
Projected effective change (new Official - current Official)-1.4
Projected new highest rating1200.0
Projected new floor700.0
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)700.0
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 floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Wits 1st Trials 2024 2024/03/16 2024/03/16 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.0 1274.7 1200.0 Analysis
1 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1281.0 1278.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
26 Wits 1st Trials 2024 2024/03/16 2024/03/16 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.0 1274.7 1200.0 Analysis
25 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1281.0 1278.0 Analysis
24 JMC Trinity Little Falls 2023 (B) 2023/07/02 2023/07/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1241.6 1229.0 Analysis
23 Alberton Chess Club Tournament 1 2023 (B) 2023/04/15 2023/04/15 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1243.4 1230.8 Analysis
22 Laerkool Midvaal Chess Open 2023 (A) 2023/01/28 2023/01/28 Sedibeng (GSV) Standard 61 0.83 5 5 2.0 1247.6 1233.3 Analysis
21 Ekurhuleni Chess Springs Club Open 2022 (B) 2022/09/03 2022/09/03 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1274.2 1264.3 Analysis
20 South African Open 2022 (B) 2022/07/09 2022/07/17 Cape Town (WCT) Standard 120 1.00 11 10 4.0 1277.1 1266.8 Analysis
19 2022 Gauteng Interregion (U20 Open) 2022/02/26 2022/02/26 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1261.9 1249.2 Analysis
18 Ekurhuleni Chess Open 2022 (B) 2022/01/08 2022/01/09 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1273.0 1260.4 Analysis
17 Ekurhuleni Trials (3) 2021 (U18+U20) 2021/11/06 2021/11/06 Ekurhuleni (GE) Standard 62 0.84 5 5 1.0 1319.0 1315.5 Analysis
16 Pinnacle College Waterfall Open (Pinnacle) 2021/10/02 2021/10/03 Johannesburg Metro (GJM) Standard 90 0.94 6 6 3.5 1293.3 1292.5 Analysis
15 Ekurhuleni Chess Chessa Open 2021 (B) 2021/03/27 2021/03/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1265.5 1257.9 Analysis
14 2019 Wild Card Chess Championship (U18 Open) 2020/01/09 2020/01/12 4 Knights (4K) Standard 120 1.00 7 7 2.0 1255.1 1244.2 Analysis
13 2019 South African Junior Team Championships (U18C) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 6 4.0 1255.1 1244.2 Analysis
12 GE vs GSV Inter Regional 2019 (U18A) 2019/10/26 2019/10/26 Ekurhuleni (GE) Standard 60 0.83 5 5 1.0 1283.8 1279.1 Analysis
11 2019 Boksburg Chess Club Round Robin (H) 2019/09/28 2019/09/28 Ekurhuleni (GE) Standard 60 0.83 5 5 2.5 1247.6 1242.7 Analysis
10 Ekurhuleni Grand Prix 2019 (B) 2019/09/14 2019/09/14 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1247.6 1242.7 Analysis
9 Springs Open 2019 (B) 2019/08/31 2019/08/31 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1164.2 1159.2 Analysis
8 Bishop Bavin Open 2019 (B) 2019/08/17 2019/08/17 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1164.2 1159.2 Analysis
7 Ekurhuleni Trials (3) 2019 (U18+U20) 2019/06/08 2019/06/08 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1176.8 1172.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 4 0 6 4.0 40.0 -85.0 1298.3 1213.3
White 6 3 0 3 3.0 50.0 0.0 1297.5 1297.5
Black 4 1 0 3 1.0 25.0 -212.5 1299.6 1087.1
Standard All 5 2 0 3 2.0 40.0 -85.0 1341.2 1256.2
White 3 2 0 1 2.0 66.7 141.7 1308.1 1449.7
Black 2 0 0 2 0.0 0.0 -425.0 1390.8 965.8
Rapid All 5 2 0 3 2.0 40.0 -85.0 1255.5 1170.5
White 3 1 0 2 1.0 33.3 -141.7 1286.8 1145.2
Black 2 1 0 1 1.0 50.0 0.0 1208.4 1208.4
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 139 56 11 72 61.5 44.2 -48.9 1285.9 1237.0
White 69 32 6 31 35.0 50.7 6.2 1272.8 1279.0
Black 70 24 5 41 26.5 37.9 -103.2 1298.8 1195.6
Standard All 134 54 11 69 59.5 44.4 -47.6 1287.1 1239.5
White 66 31 6 29 34.0 51.5 12.9 1272.2 1285.1
Black 68 23 5 40 25.5 37.5 -106.3 1301.5 1195.2
Rapid All 5 2 0 3 2.0 40.0 -85.0 1255.5 1170.5
White 3 1 0 2 1.0 33.3 -141.7 1286.8 1145.2
Black 2 1 0 1 1.0 50.0 0.0 1208.4 1208.4
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 1030109159 Nkomo, B (Ben) 4 0.5 0 1 3 12.5 1160.0 -318.8 841.2 View list
2 1030109163 Fortuin, J (Jeraldo) 3 3.0 3 0 0 100.0 1199.7 425.0 1624.7 View list
3 102050406 Slawson, G (Gregory) 3 0.0 0 0 3 0.0 1186.0 -425.0 761.0 View list
4 173004580 Chikwava, R (Ronald) 2 2.0 2 0 0 100.0 1285.2 425.0 1710.2 View list
5 2030107780 Maritz, C (Christelle) 2 2.0 2 0 0 100.0 1287.0 425.0 1712.0 View list
6 109081098 Naidoo, K (Kirthan) 2 1.0 1 0 1 50.0 1229.9 0.0 1229.9 View list
7 106067324 Aldum, R (Rocco) 2 0.0 0 0 2 0.0 1194.9 -425.0 769.9 View list
8 1020104104 Bezuidenhout, LP (Lian) 2 0.0 0 0 2 0.0 1165.7 -425.0 740.7 View list
9 104086479 Hlongwane, B (Blessing) 2 0.0 0 0 2 0.0 1250.0 -425.0 825.0 View list
10 103046660 Schroeder, D (Daniel) 2 0.0 0 0 2 0.0 1221.5 -425.0 796.5 View list
11 1030096304 Wilson, C (Caden) 2 0.0 0 0 2 0.0 1255.1 -425.0 830.1 View list
12 105082260 Botha, M (Marcus) 1 1.0 1 0 0 100.0 1261.9 425.0 1686.9 View list
13 1720107018 Daniel, G (Goshu) 1 1.0 1 0 0 100.0 1277.1 425.0 1702.1 View list
14 2010097350 Deans, J (Jessica) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
15 102002534 Bonthuyzen, MA (Michael) 1 1.0 1 0 0 100.0 1255.1 425.0 1680.1 View list
16 208066161 Bhika, J (Jyotikka) 1 1.0 1 0 0 100.0 1243.4 425.0 1668.4 View list
17 1050099265 Bepe, M (Munashe) 1 1.0 1 0 0 100.0 1166.5 425.0 1591.5 View list
18 1130130727 Badenhorst, M (Matthew) 1 1.0 1 0 0 100.0 1241.6 425.0 1666.6 View list
19 103095921 Diedericks, C (Christiaan) 1 1.0 1 0 0 100.0 1283.8 425.0 1708.8 View list
20 1080107800 Ebrahim, Z (Zachary) 1 1.0 1 0 0 100.0 1293.3 425.0 1718.3 View list