Player Page

Oberholzer, JD (Dev)
Dob: 1952/03/12 (Adult)
Gender: Male
Chess SA id: 152028682
FIDE id:
Region: Ethekwini (KED)
Citizen: RSA
Title(s):
Last active: 2024/04/04 (45 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 rating1257.7
Curent Weighted rating1232.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1257.7
Current floor (min rating allowed)760.8
Current highest rating achieved1260.8
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)±152.7
Current Raw change used (final)0.0
Projected new Raw rating1257.7
Projected new Weighed rating1235.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1257.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1260.8
Projected new floor760.8
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 rating1244.5
Curent Weighted rating1222.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1244.5
Current floor (min rating allowed)762.4
Current highest rating achieved1262.4
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)±155.6
Current Raw change used (final)0.0
Projected new Raw rating1244.5
Projected new Weighed rating1224.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1244.5
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1262.4
Projected new floor762.4
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 rating1500.0
Curent Weighted rating1310.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1500.0
Current floor (min rating allowed)1000.0
Current highest rating achieved1500.0
Current K-factor32
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)±108.1
Current Raw change used (final)0.0
Projected new Raw rating1500.0
Projected new Weighed rating1329.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1500.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1500.0
Projected new floor1000.0
Projected new K-facor32
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 rating1500.0
Curent Weighted rating1325.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1500.0
Current floor (min rating allowed)1000.0
Current highest rating achieved1500.0
Current K-factor32
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)±108.1
Current Raw change used (final)0.0
Projected new Raw rating1500.0
Projected new Weighed rating1342.9
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1500.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1500.0
Projected new floor1000.0
Projected new K-facor32
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 2024 Durban Chess Club Revive Swiss 2024/01/18 2024/04/04 Ethekwini (KED) Standard 90 0.94 9 0 0.0 1257.7 1244.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 2024 Durban Chess Club Revive Swiss 2024/01/18 2024/04/04 Ethekwini (KED) Standard 90 0.94 9 0 0.0 1257.7 1244.5 Analysis
4 Durban Chess Clarence Championship 2023 (A) 2023/03/18 2023/03/18 Ethekwini (KED) Standard 60 0.83 5 5 2.0 1210.6 1202.6 Analysis
3 South African Open 2022 (Blitz) 2022/07/14 2022/07/14 Cape Town (WCT) Blitz 5 0.18 10 10 4.5 1260.8 1200.0 Analysis
2 South African Open 2022 (B) 2022/07/09 2022/07/17 Cape Town (WCT) Standard 120 1.00 11 11 3.5 1260.8 1262.4 Analysis
1 2020 Moss Kolnik Memorial Swiss 2020/01/16 2020/03/05 Ethekwini (KED) Standard 120 1.00 8 8 4.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
Standard 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
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 34 13 2 19 14.0 41.2 -75.0 1360.0 1285.0
White 17 9 1 7 9.5 55.9 50.0 1332.5 1382.5
Black 17 4 1 12 4.5 26.5 -200.0 1387.4 1187.4
Standard All 24 9 1 14 9.5 39.6 -88.5 1338.8 1250.3
White 12 6 1 5 6.5 54.2 35.4 1341.3 1376.8
Black 12 3 0 9 3.0 25.0 -212.5 1336.3 1123.8
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 10 4 1 5 4.5 45.0 -42.5 1410.7 1368.2
White 5 3 0 2 3.0 60.0 85.0 1311.3 1396.3
Black 5 1 1 3 1.5 30.0 -170.0 1510.1 1340.1
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 206047508 Millard, C (Charlotte) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 106064704 Jaftha, J (Jeyhlin) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
3 2100102342 Mahadeo, S (Shreeya) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 188094686 Mthethwa, S (Simphiwe) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 2830106709 Jurgens, C (C) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
6 183060789 Johnson, A (Azriel) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
7 1100143744 Devine, C (Cody) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
8 186005214 Coetzee, JS (Justin) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
9 1110111144 Chetty, M (Mikhaelin) 1 1.0 1 0 0 100.0 1210.6 425.0 1635.6 View list
10 1120113687 Prinsloo, L (Lyle) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
11 210082574 Reddy, D (Deeya) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
12 2060097845 Venter, Z (Zanri) 1 1.0 1 0 0 100.0 1260.8 425.0 1685.8 View list
13 1130147685 Zondi, S (Sethu) 1 1.0 1 0 0 100.0 1210.6 425.0 1635.6 View list
14 104092951 Adams, J (Jedediah) 1 0.5 0 1 0 50.0 1260.8 0.0 1260.8 View list
15 102094361 Oberholzer, E (Ethan) 1 0.5 0 1 0 50.0 1260.8 0.0 1260.8 View list
16 1070106570 Mbewe, ZT (Zoe) 1 0.0 0 0 1 0.0 1260.8 -425.0 835.8 View list
17 102053417 Martin, N (Nico) 1 0.0 0 0 1 0.0 1260.8 -425.0 835.8 View list
18 199025777 Msibi, NS (Nathan) 1 0.0 0 0 1 0.0 1260.8 -425.0 835.8 View list
19 106092064 Msebi, S (Simamkele) 1 0.0 0 0 1 0.0 1260.8 -425.0 835.8 View list
20 1060097568 Mizen, D (Daniel) 1 0.0 0 0 1 0.0 1260.8 -425.0 835.8 View list