Player Page

Kotze, R (Ruan)
Dob: 2010/06/21 (U16)
Gender: Male
Chess SA id: 110086188
FIDE id:
Region: Mangaung (FMB)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (28 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 rating1421.3
Curent Weighted rating1309.6
Curent Weighted performance1422.6
Current official/published rating (highest between Raw, WR and WP)1421.3
Current floor (min rating allowed)961.5
Current highest rating achieved1461.5
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)±121.0
Current Raw change used (final)0.0
Projected new Raw rating1421.3
Projected new Weighed rating1319.4
Projected new Weighted performance1422.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1422.6
Projected effective change (new Official - current Official)+1.3
Projected new highest rating1461.5
Projected new floor961.5
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 rating1448.3
Curent Weighted rating1351.4
Curent Weighted performance1447.7
Current official/published rating (highest between Raw, WR and WP)1448.3
Current floor (min rating allowed)957.2
Current highest rating achieved1457.2
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)±116.4
Current Raw change used (final)0.0
Projected new Raw rating1448.3
Projected new Weighed rating1359.5
Projected new Weighted performance1447.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1448.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1457.2
Projected new floor957.2
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 rating1319.2
Curent Weighted rating934.5
Curent Weighted performance1274.2
Current official/published rating (highest between Raw, WR and WP)1319.2
Current floor (min rating allowed)882.9
Current highest rating achieved1382.9
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)±139.9
Current Raw change used (final)0.0
Projected new Raw rating1319.2
Projected new Weighed rating973.2
Projected new Weighted performance1274.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1319.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1382.9
Projected new floor882.9
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 rating811.8
Curent Weighted rating811.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)811.8
Current floor (min rating allowed)882.9
Current highest rating achieved811.8
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)±288.3
Current Raw change used (final)0.0
Projected new Raw rating811.8
Projected new Weighed rating811.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)811.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating811.8
Projected new floor882.9
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
7 Spartan Bishops Chess Championships 2024 (Knights) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1374.0 1383.0 Analysis
6 Mangaung Metro Chess 12-13 April 2024 (B) 2024/04/12 2024/04/13 Mangaung (FMB) Standard 62 0.84 5 5 4.0 1350.3 1360.0 Analysis
5 Bloemfontein Highschool League 2024 (U17A) 2024/03/08 2024/03/08 Mangaung (FMB) Rapid 15 0.39 5 4 1.0 1371.5 1382.9 Analysis
4 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 4.5 1279.7 1330.9 Analysis
3 Bloemfontein High School League 16 February 2024 (U15A) 2024/02/16 2024/02/16 Mangaung (FMB) Rapid 15 0.39 5 5 5.0 1279.7 934.8 Analysis
2 Mangaung Metro Chess 10 February 2024 (B) 2024/02/10 2024/02/10 Mangaung (FMB) Rapid 32 0.63 5 5 4.0 1279.7 934.8 Analysis
1 Kings & Queens Chess 27 January 2024 (B) 2024/01/27 2024/01/27 Mangaung (FMB) Rapid 32 0.63 5 5 3.0 1270.0 824.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
27 Spartan Bishops Chess Championships 2024 (Knights) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1374.0 1383.0 Analysis
26 Mangaung Metro Chess 12-13 April 2024 (B) 2024/04/12 2024/04/13 Mangaung (FMB) Standard 62 0.84 5 5 4.0 1350.3 1360.0 Analysis
25 Bloemfontein Highschool League 2024 (U17A) 2024/03/08 2024/03/08 Mangaung (FMB) Rapid 15 0.39 5 4 1.0 1371.5 1382.9 Analysis
24 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 4.5 1279.7 1330.9 Analysis
23 Bloemfontein High School League 16 February 2024 (U15A) 2024/02/16 2024/02/16 Mangaung (FMB) Rapid 15 0.39 5 5 5.0 1279.7 934.8 Analysis
22 Mangaung Metro Chess 10 February 2024 (B) 2024/02/10 2024/02/10 Mangaung (FMB) Rapid 32 0.63 5 5 4.0 1279.7 934.8 Analysis
21 Kings & Queens Chess 27 January 2024 (B) 2024/01/27 2024/01/27 Mangaung (FMB) Rapid 32 0.63 5 5 3.0 1270.0 824.4 Analysis
20 Morris Club Championship 2023 2023/07/28 2023/07/28 Mangaung (FMB) Rapid 32 0.63 5 5 2.0 1290.6 693.4 Analysis
19 Inter Regional Chess Championship 2023 (U14) 2023/05/19 2023/05/20 Mangaung (FMB) Standard 62 0.84 5 5 3.0 1296.8 1345.6 Analysis
18 2022 South African Junior Team Chess Championships (U14 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 6 3.5 1284.6 1350.7 Analysis
17 Mangaung Metro Chess 30 July 2022 (B) 2022/07/30 2022/07/30 Mangaung (FMB) Rapid 32 0.63 5 5 1.0 1341.5 715.8 Analysis
16 Mangaung Metro Chess 22 January 2022 (B) 2022/01/22 2022/01/22 Mangaung (FMB) Rapid 32 0.63 5 5 3.0 1358.2 668.2 Analysis
15 Mangaung Metro Chess February 2020 (D) 2020/02/21 2020/02/22 Mangaung (FMB) Standard 62 0.84 5 5 3.5 1357.1 1348.8 Analysis
14 Mangaung Metro Chess 17-18 January 2020 (D) 2020/01/17 2020/01/18 Mangaung (FMB) Standard 62 0.84 5 5 4.5 1439.7 1431.0 Analysis
13 2019 South African Junior Team Championships (U10D) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 6 1.5 1439.7 1431.0 Analysis
12 Mangaung Metro Chess October 2019 (D) 2019/10/11 2019/10/12 Mangaung (FMB) Standard 62 0.84 5 5 3.5 1461.5 1457.2 Analysis
11 Mangaung Metro July Trials 2019 (U10) 2019/07/19 2019/07/20 Mangaung (FMB) Standard 62 0.84 5 5 5.0 1358.0 1349.9 Analysis
10 Mangaung Metro Chess 31 May to 1 June 2019 (E) 2019/05/31 2019/06/01 Mangaung (FMB) Standard 62 0.84 5 5 4.0 1297.0 1286.5 Analysis
9 Inter Regional Chess Championship 2019 (U10) 2019/05/10 2019/05/11 Mangaung (FMB) Standard 60 0.83 5 5 4.0 1221.6 1214.4 Analysis
8 Mangaung Metro Chess 15-16 March 2019 (E) 2019/03/15 2019/03/16 Mangaung (FMB) Standard 62 0.84 5 5 4.0 1092.2 1071.0 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 34 25 1 8 25.5 75.0 212.5 1249.0 1461.5
White 17 12 1 4 12.5 73.5 200.0 1268.7 1468.7
Black 17 13 0 4 13.0 76.5 225.0 1229.4 1454.4
Standard All 15 12 1 2 12.5 83.3 283.3 1274.0 1557.4
White 8 6 1 1 6.5 81.3 265.6 1276.1 1541.7
Black 7 6 0 1 6.0 85.7 303.6 1271.7 1575.2
Rapid All 19 13 0 6 13.0 68.4 156.6 1229.3 1385.9
White 9 6 0 3 6.0 66.7 141.7 1262.0 1403.7
Black 10 7 0 3 7.0 70.0 170.0 1199.8 1369.8
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 139 87 9 43 91.5 65.8 134.5 1109.5 1244.1
White 70 45 5 20 47.5 67.9 151.8 1111.0 1262.8
Black 69 42 4 23 44.0 63.8 117.0 1108.1 1225.1
Standard All 98 62 9 27 66.5 67.9 151.8 1098.2 1250.0
White 50 35 5 10 37.5 75.0 212.5 1084.4 1296.9
Black 48 27 4 17 29.0 60.4 88.5 1112.5 1201.1
Rapid All 34 19 0 15 19.0 55.9 50.0 1194.2 1244.2
White 17 8 0 9 8.0 47.1 -25.0 1212.9 1187.9
Black 17 11 0 6 11.0 64.7 125.0 1175.5 1300.5
Blitz All 7 6 0 1 6.0 85.7 303.6 857.8 1161.3
White 3 2 0 1 2.0 66.7 141.7 977.4 1119.1
Black 4 4 0 0 4.0 100.0 425.0 768.0 1193.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1090096009 Pelesa, O (Oratilwe) 4 4.0 4 0 0 100.0 1234.1 425.0 1659.1 View list
2 1100098157 De Villiers, H (Hj) 3 3.0 3 0 0 100.0 1372.2 425.0 1797.2 View list
3 1100111370 Steyn, J (Johannes) 3 3.0 3 0 0 100.0 1372.2 425.0 1797.2 View list
4 107064251 Kriel, R (Ruan) 3 2.0 2 0 1 66.7 1131.4 141.7 1273.1 View list
5 109086205 Lottering, JG (Gerhard) 3 1.0 1 0 2 33.3 987.9 -141.7 846.2 View list
6 108069747 Melville, J (Jason) 3 1.0 1 0 2 33.3 1078.8 -141.7 937.2 View list
7 1100106779 Colbert, A (Ashlynne) 2 2.0 2 0 0 100.0 1398.8 425.0 1823.8 View list
8 110086186 Boje, E (Ewald) 2 2.0 2 0 0 100.0 858.6 425.0 1283.6 View list
9 1090098147 Gouws, R (Ruan) 2 2.0 2 0 0 100.0 802.7 425.0 1227.7 View list
10 1100107768 Louw, D (Delvin) 2 2.0 2 0 0 100.0 1379.3 425.0 1804.3 View list
11 1110104291 Ross, E (Ebenezer) 2 2.0 2 0 0 100.0 1297.8 425.0 1722.8 View list
12 1080111367 Van Niekerk, A (Adrian) 2 2.0 2 0 0 100.0 1194.6 425.0 1619.6 View list
13 2100107772 Van Lill, A (Amore) 2 1.5 1 1 0 75.0 1398.8 212.5 1611.3 View list
14 1060105432 Alrich, A (Alsanio) 2 1.0 1 0 1 50.0 1349.8 0.0 1349.8 View list
15 209086927 Liversage, C (Corli) 2 1.0 1 0 1 50.0 1138.7 0.0 1138.7 View list
16 1080106777 Swanepoel, W (Wj) 2 0.0 0 0 2 0.0 940.3 -425.0 515.3 View list
17 1090143830 Weng, Q (Qi) 2 0.0 0 0 2 0.0 1274.8 -425.0 849.8 View list
18 1110100915 Daly, W (William) 1 1.0 1 0 0 100.0 980.4 425.0 1405.4 View list
19 1120158359 Collings, K (Keaton) 1 1.0 1 0 0 100.0 1290.6 425.0 1715.6 View list
20 1100098145 Breytenbach, R (Reynardt) 1 1.0 1 0 0 100.0 1357.1 425.0 1782.1 View list