Player Page

Van Der Merwe, J (Johannes)
Dob: 2010/11/30 (U16)
Gender: Male
Chess SA id: 1100108274
FIDE id:
Region: Ehlanzeni (MEN)
Citizen: RSA
Title(s):
Last active: 2023/05/11 (504 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
Current Raw rating1308.1
Current Weighted rating1311.4
Current Weighted performance1031.5
Current official/published rating (highest between Raw, WR and WP)1311.4
Current highest rating achieved1350.1
Current floor (min rating allowed)850.1
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)±142.1
Current Raw change used (final)0.0
Projected new Raw rating1308.1
Projected new Weighed rating1206.0
Projected new Weighted performance1031.5
Projected new final Raw rating (if new WP > new Raw)1308.1
Projected new highest rating1350.1
Projected new floor850.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1308.1
Projected effective change (new Official - current Official)-3.3
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
Current Raw rating1300.5
Current Weighted rating1304.3
Current Weighted performance1031.5
Current official/published rating (highest between Raw, WR and WP)1304.3
Current highest rating achieved1350.2
Current floor (min rating allowed)850.2
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)±143.7
Current Raw change used (final)0.0
Projected new Raw rating1300.5
Projected new Weighed rating1199.5
Projected new Weighted performance1031.5
Projected new final Raw rating (if new WP > new Raw)1300.5
Projected new highest rating1350.2
Projected new floor850.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1300.5
Projected effective change (new Official - current Official)-3.8
s
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
Current Raw rating1178.4
Current Weighted rating1178.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1178.4
Current highest rating achieved1178.4
Current floor (min rating allowed)678.4
Current K-factor40
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)±171.0
Current Raw change used (final)0.0
Projected new Raw rating1178.4
Projected new Weighed rating1084.1
Projected new Weighted performance150.7
Projected new final Raw rating (if new WP > new Raw)1178.4
Projected new highest rating1178.4
Projected new floor678.4
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1178.4
Projected effective change (new Official - current Official)=0.0
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
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
10 Robbies 2023 (U14) 2023/05/11 2023/05/11 Ehlanzeni (MEN) Standard 63 0.84 5 5 2.0 1350.1 1350.2 Analysis
9 Uplands Chess Tournament 2023 (U14) 2023/02/25 2023/02/25 Ehlanzeni (MEN) Standard 63 0.84 5 5 4.0 1330.7 1326.4 Analysis
8 Penryn Chess Tournament 2023 (U14) 2023/02/11 2023/02/11 Ehlanzeni (MEN) Standard 63 0.84 5 5 3.0 1330.7 1326.4 Analysis
7 White River Primary 2022 (U14) 2022/07/30 2022/07/30 Ehlanzeni (MEN) Standard 62 0.84 5 5 4.0 1268.2 1279.5 Analysis
6 Rob Ferreira Chess Tournament 2022 (U14) 2022/05/07 2022/05/07 Ehlanzeni (MEN) Standard 62 0.84 5 5 4.0 1229.2 1234.5 Analysis
5 Lydenburg Chess Club 2022 (U14) 2022/04/09 2022/04/09 Ehlanzeni (MEN) Standard 62 0.84 5 5 3.5 1203.8 1206.8 Analysis
4 Uplands Chess Tournament 2022 (U14) 2022/02/26 2022/02/26 Ehlanzeni (MEN) Standard 62 0.84 5 5 3.0 1178.6 1178.8 Analysis
3 Bergvlam Tournament 2020 (U12) 2020/03/14 2020/03/14 Ehlanzeni (MEN) Standard 63 0.84 5 5 3.0 1156.1 1152.0 Analysis
2 OCF Open 2020 (U12) 2020/01/25 2020/01/25 Overberg (WOS) Rapid 15 0.39 5 5 2.0 1162.2 1200.0 Analysis
1 Chess Unlimited Open 2019 (D) 2019/01/26 2019/01/26 Ehlanzeni (MEN) Standard 60 0.83 5 5 2.0 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 50 29 3 18 30.5 61.0 93.5 1174.6 1268.1
White 23 16 0 7 16.0 69.6 166.3 1147.4 1313.7
Black 27 13 3 11 14.5 53.7 31.5 1197.7 1229.2
Standard All 45 27 3 15 28.5 63.3 113.3 1174.8 1288.2
White 21 16 0 5 16.0 76.2 222.6 1146.3 1369.0
Black 24 11 3 10 12.5 52.1 17.7 1199.8 1217.5
Rapid All 5 2 0 3 2.0 40.0 -85.0 1172.1 1087.1
White 2 0 0 2 0.0 0.0 -425.0 1158.7 733.7
Black 3 2 0 1 2.0 66.7 141.7 1181.1 1322.8
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 1100108272 Joubert, P (Petrus) 3 2.0 1 2 0 66.7 1211.0 141.7 1352.7 View list
2 1100144375 Botha, M (Migael) 2 2.0 2 0 0 100.0 1299.5 425.0 1724.5 View list
3 2090132271 Malekane, R (Ronelle N) 2 2.0 2 0 0 100.0 1191.2 425.0 1616.2 View list
4 2100139891 Pretorius, M (Miandi) 2 2.0 2 0 0 100.0 1216.5 425.0 1641.5 View list
5 1110132283 Ngomane, B (Believe) 2 1.0 1 0 1 50.0 1340.4 0.0 1340.4 View list
6 1120104169 Eksteen, J (Jean) 2 0.0 0 0 2 0.0 1178.0 -425.0 753.0 View list
7 110087575 Ogunjiofor, CJ (Chinedu Jeremy) 2 0.0 0 0 2 0.0 1254.7 -425.0 829.7 View list
8 2100135335 Espag, V (Vanesh-Mari) 1 1.0 1 0 0 100.0 1268.2 425.0 1693.2 View list
9 2100149501 Macanja, U (Usia) 1 1.0 1 0 0 100.0 1330.7 425.0 1755.7 View list
10 1100152016 Mabuza, S (Sonke) 1 1.0 1 0 0 100.0 1330.7 425.0 1755.7 View list
11 1130151994 Malala, M (Melokunhle) 1 1.0 1 0 0 100.0 1330.7 425.0 1755.7 View list
12 108087985 Byleveldt, A (Andries) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
13 1110140513 Brits, J (Janco) 1 1.0 1 0 0 100.0 1350.1 425.0 1775.1 View list
14 1090139887 Breytenbach, J (Joshua) 1 1.0 1 0 0 100.0 1203.8 425.0 1628.8 View list
15 2100111755 Cawood, K (Kaylee) 1 1.0 1 0 0 100.0 1156.1 425.0 1581.1 View list
16 1000130183 Joseph, M (Maquin) 1 1.0 1 0 0 100.0 1162.2 425.0 1587.2 View list
17 1100149497 Jones, E (Ethan) 1 1.0 1 0 0 100.0 1330.7 425.0 1755.7 View list
18 1090132260 Hartzenberg, P (Pieter) 1 1.0 1 0 0 100.0 1156.1 425.0 1581.1 View list
19 2100132273 Mkhabela, A (Agile) 1 1.0 1 0 0 100.0 1350.1 425.0 1775.1 View list
20 109084374 Naidoo, J (Jasbir) 1 1.0 1 0 0 100.0 1229.2 425.0 1654.2 View list