Player Page

Mairosi, C (Cosmas)
Dob: 1977/02/08 (Adult)
Gender: Male
Chess SA id: 177019668
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s): PA
Last active: 2024/02/17 (86 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 rating1394.7
Curent Weighted rating1375.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1394.7
Current floor (min rating allowed)976.0
Current highest rating achieved1476.0
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)±125.6
Current Raw change used (final)0.0
Projected new Raw rating1394.7
Projected new Weighed rating1376.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1394.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1476.0
Projected new floor976.0
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 rating1387.1
Curent Weighted rating1371.5
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1387.1
Current floor (min rating allowed)976.0
Current highest rating achieved1476.0
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)±127.0
Current Raw change used (final)0.0
Projected new Raw rating1387.1
Projected new Weighed rating1373.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1387.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1476.0
Projected new floor976.0
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 rating1422.9
Curent Weighted rating1422.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1422.9
Current floor (min rating allowed)976.0
Current highest rating achieved1476.0
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)±120.7
Current Raw change used (final)0.0
Projected new Raw rating1422.9
Projected new Weighed rating1422.9
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1422.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1476.0
Projected new floor976.0
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 rating1422.9
Curent Weighted rating1422.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1422.9
Current floor (min rating allowed)976.0
Current highest rating achieved1476.0
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)±120.7
Current Raw change used (final)0.0
Projected new Raw rating1422.9
Projected new Weighed rating1422.9
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1422.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1476.0
Projected new floor976.0
Projected new K-facor32
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Cape of Good Hope Open Chess Tournament 2024 (Intermediate) 2024/02/17 2024/02/17 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1369.1 1366.9 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
2 Cape of Good Hope Open Chess Tournament 2024 (Intermediate) 2024/02/17 2024/02/17 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1369.1 1366.9 Analysis
1 2019 National Club Chess Championships (B) 2019/09/27 2019/09/29 Cape Town (WCT) Standard 120 1.00 6 5 1.5 1422.9 1422.9 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 6 3 2 1 4.0 66.7 141.7 1359.8 1501.4
White 3 3 0 0 3.0 100.0 425.0 1488.4 1913.4
Black 3 0 2 1 1.0 33.3 -141.7 1231.1 1089.4
Standard All 6 3 2 1 4.0 66.7 141.7 1359.8 1501.4
White 3 3 0 0 3.0 100.0 425.0 1488.4 1913.4
Black 3 0 2 1 1.0 33.3 -141.7 1231.1 1089.4
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 11 4 3 4 5.5 50.0 0.0 1339.0 1339.0
White 6 4 1 1 4.5 75.0 212.5 1377.9 1590.4
Black 5 0 2 3 1.0 20.0 -255.0 1292.3 1037.3
Standard All 11 4 3 4 5.5 50.0 0.0 1339.0 1339.0
White 6 4 1 1 4.5 75.0 212.5 1377.9 1590.4
Black 5 0 2 3 1.0 20.0 -255.0 1292.3 1037.3
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 1110108081 Muller, H (Helgard) 1 1.0 1 0 0 100.0 1369.1 425.0 1794.1 View list
2 177017938 Lewaks, A (Andre) 1 1.0 1 0 0 100.0 1422.9 425.0 1847.9 View list
3 208078559 Van Zyl, M (Mea) 1 1.0 1 0 0 100.0 1369.1 425.0 1794.1 View list
4 1100157084 Hibbins, G (Graeme) 1 1.0 1 0 0 100.0 1369.1 425.0 1794.1 View list
5 1000136420 Hamdulay, D (Dillon) 1 0.5 0 1 0 50.0 1369.1 0.0 1369.1 View list
6 204077326 Arendse, KC (Kelli Candice) 1 0.5 0 1 0 50.0 1422.9 0.0 1422.9 View list
7 1080193268 Petersen-Bizaare, S (Shaqeel) 1 0.5 0 1 0 50.0 1369.1 0.0 1369.1 View list
8 165061903 Waldeck, LJD (Lesley) 1 0.0 0 0 1 0.0 1422.9 -425.0 997.9 View list
9 188046786 Shaani, KP (Kumbirayi) 1 0.0 0 0 1 0.0 1422.9 -425.0 997.9 View list
10 108091526 Lau, C (Callum) 1 0.0 0 0 1 0.0 1422.9 -425.0 997.9 View list
11 194012819 Holtzhausen, R (Reinhard) 1 0.0 0 0 1 0.0 1369.1 -425.0 944.1 View list