Player Page

Van Der Merwe, S (Sarah)
Dob: 2009/03/31 (U16)
Gender: Female
Chess SA id: 209079855
FIDE id:
Region: Nelson Mandela Bay (ENM)
Citizen: RSA
Title(s):
Last active: 2020/03/07 (1532 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 rating1329.6
Curent Weighted rating1329.6
Curent Weighted performance633.2
Current official/published rating (highest between Raw, WR and WP)1329.6
Current floor (min rating allowed)829.6
Current highest rating achieved1329.6
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)±137.9
Current Raw change used (final)0.0
Projected new Raw rating1329.6
Projected new Weighed rating1329.6
Projected new Weighted performance633.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1329.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1329.6
Projected new floor829.6
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 rating1325.2
Curent Weighted rating1325.2
Curent Weighted performance629.6
Current official/published rating (highest between Raw, WR and WP)1325.2
Current floor (min rating allowed)825.2
Current highest rating achieved1325.2
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)±138.7
Current Raw change used (final)0.0
Projected new Raw rating1325.2
Projected new Weighed rating1325.2
Projected new Weighted performance629.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1325.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1325.2
Projected new floor825.2
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 rating732.4
Curent Weighted rating732.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)732.4
Current floor (min rating allowed)500.0
Current highest rating achieved732.4
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)±322.8
Current Raw change used (final)0.0
Projected new Raw rating732.4
Projected new Weighed rating732.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)732.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating732.4
Projected new floor500.0
Projected new K-facor40
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 rating601.2
Curent Weighted rating601.2
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)601.2
Current floor (min rating allowed)500.0
Current highest rating achieved621.2
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)±389.2
Current Raw change used (final)0.0
Projected new Raw rating601.2
Projected new Weighed rating601.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)601.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating621.2
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
32 2020 NMBCU Chess Trials 2 2020 (U12) 2020/03/07 2020/03/07 Nelson Mandela Bay (ENM) Standard 62 0.84 5 5 4.0 1304.6 1314.4 Analysis
31 King Cars Pe Chess Club Grand Prix Leg 1 2020 2020/02/15 2020/02/22 Nelson Mandela Bay (ENM) Standard 92 0.94 6 6 3.0 1271.1 1287.8 Analysis
30 2020 NMBCU Chess Trial 1 (U12) 2020/02/08 2020/02/09 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 5.0 1271.1 1287.8 Analysis
29 Brandwag Open 2020 (A) 2020/01/31 2020/02/01 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 2.0 1271.1 1287.8 Analysis
28 2019 South African Junior Team Championships (U12A) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 4.0 1216.0 1244.2 Analysis
27 Ulitmate Chess Open 2019 (Rapid B) 2019/11/30 2019/11/30 Nelson Mandela Bay (ENM) Rapid 20 0.47 6 6 3.0 1224.1 624.0 Analysis
26 Ulitmate Chess Open 2019 (Blitz B) 2019/11/30 2019/11/30 Nelson Mandela Bay (ENM) Blitz 5 0.18 6 5 1.0 1224.1 621.2 Analysis
25 PE Chess Club Open 2019 (B) 2019/10/11 2019/10/13 Nelson Mandela Bay (ENM) Standard 95 0.95 6 6 3.0 1256.2 1277.3 Analysis
24 NMBYCC Closed 2019 (U12) 2019/07/26 2019/07/27 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 3.0 1284.5 1306.3 Analysis
23 Nelson Mandela Bay Junior Trials 4 2019 (U12) 2019/07/12 2019/07/13 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 4.5 1284.5 1306.3 Analysis
22 COMMONWEALTH CHESS CHAMPIONSHIP-2019 2019/07/01 2009/07/07 India (IND) Standard 120 1.00 7 6 1.0 1284.5 1306.3 Analysis
21 NMBJCU Trials 3 2019 (U12) 2019/05/10 2019/05/11 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 5.5 1187.9 1193.1 Analysis
20 PECC King Cars Grand Prix Second Leg 2019 2019/04/13 2019/04/13 Nelson Mandela Bay (ENM) Blitz 5 0.18 9 8 3.0 1176.3 536.4 Analysis
19 Nelson Mandela Bay Junior Chess Trials 2 2019 (U12) 2019/04/05 2019/04/06 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 4.0 1176.3 1178.7 Analysis
18 2019 Boardwalk Pearson Open (Open) 2019/03/28 2019/03/31 Nelson Mandela Bay (ENM) Standard 95 0.95 9 8 2.0 1031.5 1011.9 Analysis
17 2019 South African Junior Closed Chess Championship (U10 Girls) 2019/03/17 2019/03/22 Chess South Africa (CSA) Standard 120 1.00 9 9 5.0 1031.5 1011.9 Analysis
16 NMBCU Trials 1 2019 (U12) 2019/03/08 2019/03/09 Nelson Mandela Bay (ENM) Standard 60 0.83 5 5 4.0 1031.5 1011.9 Analysis
15 King Cars PECC Grand Prix First Leg 2019 2019/02/02 2019/02/09 Nelson Mandela Bay (ENM) Standard 92 0.94 6 6 2.0 1021.7 997.1 Analysis
14 South African Junior Team Championships 2018 (U10A) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 3.5 1045.9 1033.5 Analysis
13 Ultimate Chess Open 2018 (B) 2018/11/30 2018/12/01 Nelson Mandela Bay (ENM) Standard 60 0.83 6 6 1.5 1045.9 1033.5 Analysis
12
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 190 88 14 88 95.0 50.0 0.0 1127.7 1127.7
White 92 43 8 41 47.0 51.1 9.2 1137.4 1146.6
Black 98 45 6 47 48.0 49.0 -8.7 1118.6 1110.0
Standard All 166 78 14 74 85.0 51.2 10.2 1125.5 1135.8
White 80 37 8 35 41.0 51.3 10.6 1126.0 1136.6
Black 86 41 6 39 44.0 51.2 9.9 1125.1 1135.0
Rapid All 11 6 0 5 6.0 54.5 38.6 1133.5 1172.1
White 6 4 0 2 4.0 66.7 141.7 1212.0 1353.6
Black 5 2 0 3 2.0 40.0 -85.0 1039.4 954.4
Blitz All 13 4 0 9 4.0 30.8 -163.5 1150.6 987.1
White 6 2 0 4 2.0 33.3 -141.7 1214.6 1072.9
Black 7 2 0 5 2.0 28.6 -182.1 1095.7 913.6
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 109087219 Crone, C (Callan) 7 3.0 3 0 4 42.9 1124.0 -60.7 1063.2 View list
2 109067367 Peter, N (Noah) 6 1.5 1 1 4 25.0 1082.3 -212.5 869.8 View list
3 109087620 Olsen, C (Christopher) 4 3.0 3 0 1 75.0 1043.9 212.5 1256.4 View list
4 209077417 Louis, C (Caitlyn) 4 2.5 2 1 1 62.5 1229.9 106.3 1336.2 View list
5 110087673 Van Der Merwe, L (Lucas) 4 2.0 2 0 2 50.0 964.8 0.0 964.8 View list
6 109067361 Baboo, MS (Muhammad) 4 1.5 1 1 2 37.5 911.4 -106.3 805.1 View list
7 110077415 Pienaar, K (Keane) 4 1.5 1 1 2 37.5 987.2 -106.3 880.9 View list
8 109087638 Rautenbach, J (Joshua) 3 3.0 3 0 0 100.0 977.0 425.0 1402.0 View list
9 109087632 Kivido, Z (Zach) 3 2.0 2 0 1 66.7 1188.7 141.7 1330.4 View list
10 1060099229 Shogole, M (Mnandisi) 3 2.0 2 0 1 66.7 1154.7 141.7 1296.3 View list
11 1090099505 Rautenbach, W (Wilhelm) 3 1.5 1 1 1 50.0 1199.9 0.0 1199.9 View list
12 205064819 Holroyd, K (Kea) 3 1.0 1 0 2 33.3 1175.6 -141.7 1033.9 View list
13 103054244 Muller, K (Kaden) 3 1.0 1 0 2 33.3 1156.4 -141.7 1014.7 View list
14 1100099216 An, B (Bryant) 2 2.0 2 0 0 100.0 866.4 425.0 1291.4 View list
15 2090099504 Freeman, N (Nicole) 2 2.0 2 0 0 100.0 1223.7 425.0 1648.7 View list
16 1090111059 Jordaan, G (Gunther) 2 2.0 2 0 0 100.0 1168.0 425.0 1593.0 View list
17 1090097332 Kivido, R (Reece) 2 2.0 2 0 0 100.0 910.5 425.0 1335.5 View list
18 2090107383 Munir, A (Ainy) 2 2.0 2 0 0 100.0 1287.8 425.0 1712.8 View list
19 109077429 Le Roux, JC (Jean) 2 1.5 1 1 0 75.0 1010.5 212.5 1223.0 View list
20 207077374 Frosler, J (Jordan) 2 1.0 1 0 1 50.0 1088.5 0.0 1088.5 View list