Player Page

Bolton, NA (Naomi)
Dob: 1980/10/11 (Adult)
Gender: Female
Chess SA id: 280038951
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (120 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 rating1264.0
Current Weighted rating1247.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1264.0
Current highest rating achieved1302.0
Current floor (min rating allowed)802.0
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)±151.4
Current Raw change used (final)0.0
Projected new Raw rating1264.0
Projected new Weighed rating1149.0
Projected new Weighted performance630.1
Projected new final Raw rating (if new WP > new Raw)1264.0
Projected new highest rating1302.0
Projected new floor802.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1264.0
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 rating1302.0
Current Weighted rating1261.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1302.0
Current highest rating achieved1302.0
Current floor (min rating allowed)802.0
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)±143.4
Current Raw change used (final)0.0
Projected new Raw rating1302.0
Projected new Weighed rating1162.1
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1302.0
Projected new floor802.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1302.0
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 rating1218.1
Current Weighted rating1230.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1230.4
Current highest rating achieved1302.0
Current floor (min rating allowed)802.0
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)±161.6
Current Raw change used (final)0.0
Projected new Raw rating1218.1
Projected new Weighed rating1132.7
Projected new Weighted performance663.2
Projected new final Raw rating (if new WP > new Raw)1218.1
Projected new highest rating1302.0
Projected new floor802.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1218.1
Projected effective change (new Official - current Official)-12.3
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 rating1302.0
Current Weighted rating1261.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1302.0
Current highest rating achieved1302.0
Current floor (min rating allowed)802.0
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)±143.4
Current Raw change used (final)0.0
Projected new Raw rating1302.0
Projected new Weighed rating1162.1
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1302.0
Projected new floor802.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1302.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 6 2.0 1266.0 1217.0 Analysis
1 Hermanus Chess Club Open 2024 (Intermediate) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 6 1.0 1302.0 1302.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
2 Steinitz Chess Festival 2024 (Open Rapid) 2024/05/11 2024/05/11 Cape Town (WCT) Rapid 20 0.47 6 6 2.0 1266.0 1217.0 Analysis
1 Hermanus Chess Club Open 2024 (Intermediate) 2024/04/20 2024/04/20 Overberg (WOS) Rapid 20 0.47 7 6 1.0 1302.0 1302.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 12 3 0 9 3.0 25.0 -212.5 1353.0 1140.5
White 6 1 0 5 1.0 16.7 -283.3 1454.2 1170.8
Black 6 2 0 4 2.0 33.3 -141.7 1251.9 1110.2
Standard 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
Rapid All 12 3 0 9 3.0 25.0 -212.5 1353.0 1140.5
White 6 1 0 5 1.0 16.7 -283.3 1454.2 1170.8
Black 6 2 0 4 2.0 33.3 -141.7 1251.9 1110.2
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 12 3 0 9 3.0 25.0 -212.5 1353.0 1140.5
White 6 1 0 5 1.0 16.7 -283.3 1454.2 1170.8
Black 6 2 0 4 2.0 33.3 -141.7 1251.9 1110.2
Standard 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
Rapid All 12 3 0 9 3.0 25.0 -212.5 1353.0 1140.5
White 6 1 0 5 1.0 16.7 -283.3 1454.2 1170.8
Black 6 2 0 4 2.0 33.3 -141.7 1251.9 1110.2
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 1090119361 Byrne, R (Russel) 1 1.0 1 0 0 100.0 1302.0 425.0 1727.0 View list
2 1930304135 Kieser, M (Michael) 1 1.0 1 0 0 100.0 1266.0 425.0 1691.0 View list
3 2120304136 Uys, E (Emma) 1 1.0 1 0 0 100.0 1266.0 425.0 1691.0 View list
4 164042921 Willenberg, SR (Shaun) 1 0.0 0 0 1 0.0 1266.0 -425.0 841.0 View list
5 2130191696 Sun, H (Haojia) 1 0.0 0 0 1 0.0 1266.0 -425.0 841.0 View list
6 1810162833 Stevens, N (Norman) 1 0.0 0 0 1 0.0 1302.0 -425.0 877.0 View list
7 181050376 Saffier, L (Lemuel) 1 0.0 0 0 1 0.0 1302.0 -425.0 877.0 View list
8 2120115959 Mungal, Z (Zoey) 1 0.0 0 0 1 0.0 1302.0 -425.0 877.0 View list
9 178008316 Dubbeld, BM (Bernard) 1 0.0 0 0 1 0.0 1266.0 -425.0 841.0 View list
10 1080150205 Devaney, N (Nigel) 1 0.0 0 0 1 0.0 1266.0 -425.0 841.0 View list
11 1720302181 Bessesen, S (Sigi) 1 0.0 0 0 1 0.0 1302.0 -425.0 877.0 View list
12 2020302199 Abrahams, H (Hopelynn) 1 0.0 0 0 1 0.0 1302.0 -425.0 877.0 View list