Player Page

Grunenfelder, S (Stiaan Bosua)
Dob: 2008/07/08 (U18)
Gender: Male
Chess SA id: 1080145977
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (194 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 rating1284.3
Current Weighted rating1265.0
Current Weighted performance905.3
Current official/published rating (highest between Raw, WR and WP)1284.3
Current highest rating achieved1284.3
Current floor (min rating allowed)784.3
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)±147.0
Current Raw change used (final)0.0
Projected new Raw rating1284.3
Projected new Weighed rating1164.3
Projected new Weighted performance905.3
Projected new final Raw rating (if new WP > new Raw)1284.3
Projected new highest rating1284.3
Projected new floor784.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1284.3
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 rating1301.9
Current Weighted rating1281.0
Current Weighted performance905.3
Current official/published rating (highest between Raw, WR and WP)1301.9
Current highest rating achieved1301.9
Current floor (min rating allowed)801.9
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)±143.4
Current Raw change used (final)0.0
Projected new Raw rating1301.9
Projected new Weighed rating1179.0
Projected new Weighted performance905.3
Projected new final Raw rating (if new WP > new Raw)1301.9
Projected new highest rating1301.9
Projected new floor801.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1301.9
Projected effective change (new Official - current Official)=0.0
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 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
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 2024 Tshwane South School District CLOSED Individual Championships (U18 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1250.5 1265.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
20 2024 Tshwane South School District CLOSED Individual Championships (U18 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1250.5 1265.2 Analysis
19 2022 Gauteng Schools Team Championships (U15 Open) 2022/08/26 2022/08/26 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1138.9 1127.6 Analysis
18 2019 D4 Individual Finals (U11 Mixed) 2019/03/09 2019/03/09 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1130.6 1118.4 Analysis
17 2019 Constantia Park Open (C) 2019/02/09 2019/02/09 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1126.0 1111.2 Analysis
16 2019 Tshwane Chess Registration Tournament (C) 2019/01/26 2019/01/26 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1128.7 1118.4 Analysis
15 2019 Centurion Club Tournament Open 2019/01/23 2019/01/30 Tshwane (GTP) Standard 60 0.83 6 1 0.0 1128.7 1118.4 Analysis
14 Boksburg Open 2019 (C) 2019/01/19 2019/01/19 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1128.7 1118.4 Analysis
13 2018 Wild Card Chess Championships (U12 Open) 2018/12/21 2018/12/24 4 Knights (4K) Standard 120 1.00 7 7 3.5 1166.8 1164.8 Analysis
12 South African Junior Team Championships 2018 (U12B) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 1.0 1166.8 1164.8 Analysis
11 2018 Tshwane Inter Region (U12B) 2018/12/01 2018/12/01 Cape Town (WCT) Standard 60 0.83 5 5 5.0 1166.8 1164.8 Analysis
10 2018 Lardies Ope (C) 2018/10/27 2018/10/27 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1134.4 1124.0 Analysis
9 2018 Gauteng North Open (C) 2018/10/20 2018/10/21 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1134.4 1124.0 Analysis
8 2018 Etienne Lewis Trials (U12 Boys) 2018/08/31 2018/09/02 Tshwane (GTP) Standard 120 1.00 7 7 4.0 1109.2 1106.0 Analysis
7 Ekurhuleni Open 2018 (C) 2018/08/18 2018/08/18 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1130.4 1126.4 Analysis
6 2018 Alekhine Open (C) 2018/08/09 2018/08/11 Tshwane (GTP) Standard 90 0.94 6 6 3.0 1130.4 1126.4 Analysis
5 2018 D4 Tshwane South Schools League Finals (U13) 2018/08/03 2018/08/03 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1130.4 1126.4 Analysis
4 2018 Menlo Open Chess Tournament (C) 2018/07/21 2018/07/21 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1125.4 1119.2 Analysis
3 2018 Swartkop Open (C) 2018/06/23 2018/06/23 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1169.9 1174.0 Analysis
2 2018 Gauteng Secondary Schools Individual Chess Championships (U11 Boys) 2018/05/25 2018/05/25 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1138.0 1134.4 Analysis
1 2018 Capablanca Swiss (C) 2018/04/27 2018/04/29 Tshwane (GTP) Standard 90 0.94 7 7 4.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 2 2 1 3.0 60.0 85.0 1351.7 1436.7
White 2 1 1 0 1.5 75.0 212.5 1526.5 1739.0
Black 3 1 1 1 1.5 50.0 0.0 1235.2 1235.2
Standard All 5 2 2 1 3.0 60.0 85.0 1351.7 1436.7
White 2 1 1 0 1.5 75.0 212.5 1526.5 1739.0
Black 3 1 1 1 1.5 50.0 0.0 1235.2 1235.2
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 105 54 11 40 59.5 56.7 56.7 1107.5 1164.1
White 49 25 5 19 27.5 56.1 52.0 1102.0 1154.0
Black 56 29 6 21 32.0 57.1 60.7 1112.3 1173.0
Standard All 105 54 11 40 59.5 56.7 56.7 1107.5 1164.1
White 49 25 5 19 27.5 56.1 52.0 1102.0 1154.0
Black 56 29 6 21 32.0 57.1 60.7 1112.3 1173.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 108052034 Du Toit, SJM (Stephanus (Matteo)) 3 3.0 3 0 0 100.0 1183.9 425.0 1608.9 View list
2 1070096804 Scheepers, D (Divan) 2 2.0 2 0 0 100.0 1129.6 425.0 1554.6 View list
3 207056039 Smit, M (Mikayla) 2 2.0 2 0 0 100.0 1150.2 425.0 1575.2 View list
4 105055266 Van Den Berg, R (Rynhardt) 2 2.0 2 0 0 100.0 1164.3 425.0 1589.3 View list
5 110092658 Van Nieuwenhuizen, BF (Bernard) 2 2.0 2 0 0 100.0 1148.6 425.0 1573.6 View list
6 107088585 Grobler, JTW (Johannes Theodorus Wessel) 2 1.5 1 1 0 75.0 1194.7 212.5 1407.2 View list
7 108073056 Lotter, CJ (Christiaan Johannes) 2 1.5 1 1 0 75.0 1119.9 212.5 1332.4 View list
8 105065850 Neethling, JC (Jandre Constantene) 2 1.5 1 1 0 75.0 1167.2 212.5 1379.7 View list
9 104029045 Oosthuizen, JR (John) 2 1.5 1 1 0 75.0 1129.6 212.5 1342.1 View list
10 1060104959 Stadler, H (Helgard) 2 1.0 1 0 1 50.0 1129.6 0.0 1129.6 View list
11 109092649 Webb, K (Kagan) 2 1.0 1 0 1 50.0 1146.4 0.0 1146.4 View list
12 109088372 Gruenenfelder, W (Werni) 1 1.0 1 0 0 100.0 1126.0 425.0 1551.0 View list
13 177088863 Britz, R (Riaan) 1 1.0 1 0 0 100.0 1134.4 425.0 1559.4 View list
14 106076003 Dvir, O (Omer) 1 1.0 1 0 0 100.0 1125.4 425.0 1550.4 View list
15 110088599 Bogaard, FK (Franco) 1 1.0 1 0 0 100.0 1166.8 425.0 1591.8 View list
16 1070101240 Boshoff, B (Benje) 1 1.0 1 0 0 100.0 1128.7 425.0 1553.7 View list
17 107078445 Du Plessis, S (Schalk) 1 1.0 1 0 0 100.0 1138.0 425.0 1563.0 View list
18 207077136 Kleynhans, N (Nelrie) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
19 1090098577 Kluge, H (Hermann) 1 1.0 1 0 0 100.0 1130.6 425.0 1555.6 View list
20 110095325 Lourens, J (Jurgen) 1 1.0 1 0 0 100.0 1166.8 425.0 1591.8 View list