Player Page

Coetzer, R (Ruan)
Dob: 2007/11/14 (U18)
Gender: Male
Chess SA id: 107093975
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/08/10 (104 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 rating1286.8
Current Weighted rating1230.5
Current Weighted performance1226.3
Current official/published rating (highest between Raw, WR and WP)1286.8
Current highest rating achieved1286.8
Current floor (min rating allowed)786.8
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)±146.5
Current Raw change used (final)0.0
Projected new Raw rating1286.8
Projected new Weighed rating1132.9
Projected new Weighted performance1226.3
Projected new final Raw rating (if new WP > new Raw)1286.8
Projected new highest rating1286.8
Projected new floor786.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1286.8
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 rating1213.2
Current Weighted rating1210.6
Current Weighted performance874.9
Current official/published rating (highest between Raw, WR and WP)1213.2
Current highest rating achieved1213.2
Current floor (min rating allowed)713.2
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)±162.7
Current Raw change used (final)0.0
Projected new Raw rating1213.2
Projected new Weighed rating1113.8
Projected new Weighted performance874.9
Projected new final Raw rating (if new WP > new Raw)1213.2
Projected new highest rating1213.2
Projected new floor713.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1213.2
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 rating1307.6
Current Weighted rating1229.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1307.6
Current highest rating achieved1307.6
Current floor (min rating allowed)807.6
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)±142.2
Current Raw change used (final)0.0
Projected new Raw rating1307.6
Projected new Weighed rating1132.6
Projected new Weighted performance868.7
Projected new final Raw rating (if new WP > new Raw)1307.6
Projected new highest rating1307.6
Projected new floor807.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1307.6
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
4 Bojanala's Kings & Queens Rapid and Doubles 2024 (Open) 2024/08/10 2024/08/10 Bojanala Platina (NBR) Rapid 15 0.39 7 7 4.5 1261.9 1273.8 Analysis
3 Bojanala's Clash Of Schools - Secondary 2024 (High School Seniors) 2024/07/27 2024/07/27 Bojanala Platina (NBR) Rapid 35 0.66 5 5 5.0 1214.1 1200.0 Analysis
2 Bojanala Silwerrand's Rating Implosion 2024 (Queens) 2024/03/16 2024/03/16 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1206.0 1207.4 Analysis
1 Schoemies' Kings & Queens 2024 (Knights) 2024/03/02 2024/03/02 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1206.0 1207.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
9 Bojanala's Kings & Queens Rapid and Doubles 2024 (Open) 2024/08/10 2024/08/10 Bojanala Platina (NBR) Rapid 15 0.39 7 7 4.5 1261.9 1273.8 Analysis
8 Bojanala's Clash Of Schools - Secondary 2024 (High School Seniors) 2024/07/27 2024/07/27 Bojanala Platina (NBR) Rapid 35 0.66 5 5 5.0 1214.1 1200.0 Analysis
7 Bojanala Silwerrand's Rating Implosion 2024 (Queens) 2024/03/16 2024/03/16 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1206.0 1207.4 Analysis
6 Schoemies' Kings & Queens 2024 (Knights) 2024/03/02 2024/03/02 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1206.0 1207.4 Analysis
5 JNW Club - Trinityhouse Little Falls Open 2020 (D) 2020/03/14 2020/03/14 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1201.8 1205.6 Analysis
4 JNW Club - Trinityhouse Randpark Ridge Open 2020 (D) 2020/02/22 2020/02/22 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1138.7 1126.8 Analysis
3 JNW Chess Club - Muldersdrif 2019 (B) 2019/10/18 2019/10/18 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1154.6 1142.4 Analysis
2 JNW Club - Maragon Open 2019 (D) 2019/08/03 2019/08/03 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1169.5 1164.0 Analysis
1 D2 Schools Individuals 2019 (U13) 2019/05/18 2019/05/18 West Rand (GWR) Standard 60 0.83 5 4 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 22 13 2 7 14.0 63.6 115.9 1267.3 1383.2
White 12 7 0 5 7.0 58.3 70.8 1317.1 1388.0
Black 10 6 2 2 7.0 70.0 170.0 1207.5 1377.5
Standard All 10 4 1 5 4.5 45.0 -42.5 1278.6 1236.1
White 6 3 0 3 3.0 50.0 0.0 1339.2 1339.2
Black 4 1 1 2 1.5 37.5 -106.3 1187.9 1081.6
Rapid All 12 9 1 2 9.5 79.2 247.9 1257.8 1505.7
White 6 4 0 2 4.0 66.7 141.7 1295.1 1436.7
Black 6 5 1 0 5.5 91.7 354.2 1220.5 1574.7
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 46 27 2 17 28.0 60.9 92.4 1175.4 1267.8
White 26 14 0 12 14.0 53.8 32.7 1160.9 1193.6
Black 20 13 2 5 14.0 70.0 170.0 1194.3 1364.3
Standard All 34 18 1 15 18.5 54.4 37.5 1146.3 1183.8
White 20 10 0 10 10.0 50.0 0.0 1120.6 1120.6
Black 14 8 1 5 8.5 60.7 91.1 1183.1 1274.1
Rapid All 12 9 1 2 9.5 79.2 247.9 1257.8 1505.7
White 6 4 0 2 4.0 66.7 141.7 1295.1 1436.7
Black 6 5 1 0 5.5 91.7 354.2 1220.5 1574.7
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 1080300056 Van Wyk, R (Ruan) 3 1.5 1 1 1 50.0 1224.6 0.0 1224.6 View list
2 1040132192 Brummelkamp, G (Gideon) 1 1.0 1 0 0 100.0 1138.7 425.0 1563.7 View list
3 105082260 Botha, M (Marcus) 1 1.0 1 0 0 100.0 1169.5 425.0 1594.5 View list
4 1070307418 Bosman, R (Rudi) 1 1.0 1 0 0 100.0 1214.1 425.0 1639.1 View list
5 1090105696 Barradas, K (Keanu) 1 1.0 1 0 0 100.0 1169.5 425.0 1594.5 View list
6 1090130895 Arokiam, E (Ethan) 1 1.0 1 0 0 100.0 1201.8 425.0 1626.8 View list
7 1070132193 Danks, S (Stuart) 1 1.0 1 0 0 100.0 1138.7 425.0 1563.7 View list
8 1150302145 Coetzee, W (Willie) 1 1.0 1 0 0 100.0 1261.9 425.0 1686.9 View list
9 206079860 Dinham, K (Kiara) 1 1.0 1 0 0 100.0 1169.5 425.0 1594.5 View list
10 2120111139 Maharaj, A (Aditi) 1 1.0 1 0 0 100.0 1138.7 425.0 1563.7 View list
11 108082266 Kotze, F (Francois) 1 1.0 1 0 0 100.0 1201.8 425.0 1626.8 View list
12 1100192501 Kekana, T (Tebogo) 1 1.0 1 0 0 100.0 1261.9 425.0 1686.9 View list
13 1070160012 Jonker, Z (Zander) 1 1.0 1 0 0 100.0 1214.1 425.0 1639.1 View list
14 1090133402 Jewatzchewitz, J (Jaco) 1 1.0 1 0 0 100.0 1201.8 425.0 1626.8 View list
15 107067863 Mhaka, ST (Shaun) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
16 1070300042 Metene, R (Remofilwe) 1 1.0 1 0 0 100.0 1206.0 425.0 1631.0 View list
17 1070159981 Mogosane, T (Thapelo) 1 1.0 1 0 0 100.0 1214.1 425.0 1639.1 View list
18 1080132199 Monageng, R (Reuben) 1 1.0 1 0 0 100.0 1138.7 425.0 1563.7 View list
19 2110136768 Monare, O (Oratilwe) 1 1.0 1 0 0 100.0 1206.0 425.0 1631.0 View list
20 1100110075 Mupalala, K (Kenzo) 1 1.0 1 0 0 100.0 1154.6 425.0 1579.6 View list