Player Page

Khosana, O (Onalerona)
Dob: 2016/02/22 (U10)
Gender: Male
Chess SA id: 1160302696
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/07/13 (11 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 rating1265.3
Current Weighted rating1210.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1265.3
Current highest rating achieved1265.3
Current floor (min rating allowed)765.3
Current K-factor36
Games played this month10
Score (S)7.0
Expected score (We)5.15
Difference (S-We)1.54
Current Raw change (no limits, including tournament time weight)55.3
Current min/max change allowed (with limits)±151.1
Current Raw change used (final)55.3
Projected new Raw rating1320.6
Projected new Weighed rating1113.6
Projected new Weighted performance1349.0
Projected new final Raw rating (if new WP > new Raw)1349.0
Projected new highest rating1349.0
Projected new floor849.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1349.0
Projected effective change (new Official - current Official)+83.7
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 rating1274.8
Current Weighted rating1211.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1274.8
Current highest rating achieved1274.8
Current floor (min rating allowed)774.8
Current K-factor36
Games played this month10
Score (S)7.0
Expected score (We)5.25
Difference (S-We)1.75
Current Raw change (no limits, including tournament time weight)63.0
Current min/max change allowed (with limits)±149.1
Current Raw change used (final)63.0
Projected new Raw rating1337.8
Projected new Weighed rating1115.3
Projected new Weighted performance1349.0
Projected new final Raw rating (if new WP > new Raw)1349.0
Projected new highest rating1349.0
Projected new floor849.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1349.0
Projected effective change (new Official - current Official)+74.2
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 achieved0.0
Current floor (min rating allowed)700.0
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)±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 rating0.0
Projected new floor700.0
Projected new K-facor40
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 achieved0.0
Current floor (min rating allowed)700.0
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)±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 rating0.0
Projected new floor700.0
Projected new K-facor40
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
Tournament: Menlopark Open Chess Tournament 2024 (U10)
Start: 2024/07/13  End: 2024/07/13  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1265.3  Rating gain/loss: 21.8
Type rating: 1274.8  Rating gain/loss: 25.2
Analysis
Tournament: 2024 Prestige College Open Chess Tournament (E)
Start: 2024/07/06  End: 2024/07/06  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1265.3  Rating gain/loss: 33.5
Type rating: 1274.8  Rating gain/loss: 37.8
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1265.3 1274.8 Analysis
5 2024 Prestige College Open Chess Tournament (E) 2024/07/06 2024/07/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1265.3 1274.8 Analysis
4 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1241.1 1249.6 Analysis
3 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (E) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1241.1 1249.6 Analysis
2 2024 Mid Gauteng Open Chess Tournament (U10) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1223.2 1228.0 Analysis
1 2024 Silver Lakes Open Chess Tournament (E) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1265.3 1274.8 Analysis
5 2024 Prestige College Open Chess Tournament (E) 2024/07/06 2024/07/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1265.3 1274.8 Analysis
4 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1241.1 1249.6 Analysis
3 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (E) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1241.1 1249.6 Analysis
2 2024 Mid Gauteng Open Chess Tournament (U10) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1223.2 1228.0 Analysis
1 2024 Silver Lakes Open Chess Tournament (E) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 30 19 0 11 19.0 63.3 113.3 1233.2 1346.5
White 12 9 0 3 9.0 75.0 212.5 1197.0 1409.5
Black 18 10 0 8 10.0 55.6 47.2 1257.3 1304.5
Standard All 30 19 0 11 19.0 63.3 113.3 1233.2 1346.5
White 12 9 0 3 9.0 75.0 212.5 1197.0 1409.5
Black 18 10 0 8 10.0 55.6 47.2 1257.3 1304.5
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 30 19 0 11 19.0 63.3 113.3 1233.2 1346.5
White 12 9 0 3 9.0 75.0 212.5 1197.0 1409.5
Black 18 10 0 8 10.0 55.6 47.2 1257.3 1304.5
Standard All 30 19 0 11 19.0 63.3 113.3 1233.2 1346.5
White 12 9 0 3 9.0 75.0 212.5 1197.0 1409.5
Black 18 10 0 8 10.0 55.6 47.2 1257.3 1304.5
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 1150306250 Van Der Merwe, A (Alex) 2 2.0 2 0 0 100.0 1265.3 425.0 1690.3 View list
2 2170191352 Kgwale, K (Keratilwe) 2 1.0 1 0 1 50.0 1220.5 0.0 1220.5 View list
3 1170302677 Simao, R (Raul) 2 0.0 0 0 2 0.0 1241.1 -425.0 816.1 View list
4 1160161722 De Lange, J (Josua) 1 1.0 1 0 0 100.0 1265.3 425.0 1690.3 View list
5 1150143864 De Klerk, O (Oliver) 1 1.0 1 0 0 100.0 1265.3 425.0 1690.3 View list
6 2160303276 Aucamp, V (Victoria) 1 1.0 1 0 0 100.0 1223.2 425.0 1648.2 View list
7 1160303277 Jablonowski, D (Dominik) 1 1.0 1 0 0 100.0 1223.2 425.0 1648.2 View list
8 1150303477 Hans, B (Boitshepo) 1 1.0 1 0 0 100.0 1265.3 425.0 1690.3 View list
9 1160152253 Erasmus, H (Henrich) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
10 1170143024 Ebersohn, C (Christiaan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 2150143023 Du Plessis, A (Anya) 1 1.0 1 0 0 100.0 1241.1 425.0 1666.1 View list
12 1160192171 Oosthuizen, M (Morgan) 1 1.0 1 0 0 100.0 1241.1 425.0 1666.1 View list
13 1150303320 Nyakalo, L (Lubanzi) 1 1.0 1 0 0 100.0 1265.3 425.0 1690.3 View list
14 2170191631 Muller, L (Limay) 1 1.0 1 0 0 100.0 1241.1 425.0 1666.1 View list
15 1160303279 Maloka, J (Junior) 1 1.0 1 0 0 100.0 1223.2 425.0 1648.2 View list
16 1160303485 Rakgatlha, K (Karabo Kgobane) 1 1.0 1 0 0 100.0 1265.3 425.0 1690.3 View list
17 1170161733 Roux, D (Daniel) 1 1.0 1 0 0 100.0 1241.1 425.0 1666.1 View list
18 2150302675 Simao, A (Arya) 1 1.0 1 0 0 100.0 1241.1 425.0 1666.1 View list
19 1150157001 Vounatsos, L (Levi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
20 1150149180 Palmer, E (Eli) 1 0.0 0 0 1 0.0 1265.3 -425.0 840.3 View list