Player Page

May, JM (Jaco)
Dob: 1983/12/14 (Adult)
Gender: Male
Chess SA id: 183021986
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/03/09 (70 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 rating855.9
Curent Weighted rating861.3
Curent Weighted performance718.8
Current official/published rating (highest between Raw, WR and WP)861.3
Current floor (min rating allowed)500.0
Current highest rating achieved865.2
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)±270.7
Current Raw change used (final)0.0
Projected new Raw rating855.9
Projected new Weighed rating861.1
Projected new Weighted performance718.8
Projected new official/published rating (highest between new Raw, new WR and new WP)861.1
Projected effective change (new Official - current Official)-0.2
Projected new highest rating865.2
Projected new floor500.0
Projected new K-facor40
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 rating806.6
Curent Weighted rating800.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)806.6
Current floor (min rating allowed)500.0
Current highest rating achieved829.0
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)±290.4
Current Raw change used (final)0.0
Projected new Raw rating806.6
Projected new Weighed rating801.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)806.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating829.0
Projected new floor500.0
Projected new K-facor40
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 rating1041.6
Curent Weighted rating949.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1041.6
Current floor (min rating allowed)541.6
Current highest rating achieved1041.6
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)±207.8
Current Raw change used (final)0.0
Projected new Raw rating1041.6
Projected new Weighed rating958.5
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1041.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1041.6
Projected new floor541.6
Projected new K-facor40
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 rating761.0
Curent Weighted rating761.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)761.0
Current floor (min rating allowed)541.6
Current highest rating achieved829.0
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)±309.9
Current Raw change used (final)0.0
Projected new Raw rating761.0
Projected new Weighed rating761.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)761.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating829.0
Projected new floor541.6
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 South African Braille Open 2024 2024/03/09 2024/03/09 Cape Winelands (WCW) Standard 60 0.83 5 5 0.5 865.2 805.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 South African Braille Open 2024 2024/03/09 2024/03/09 Cape Winelands (WCW) Standard 60 0.83 5 5 0.5 865.2 805.8 Analysis
6 SA Braille South 2023 2023/03/18 2023/03/19 Cape Winelands (WCW) Standard 90 0.94 5 5 1.5 842.3 770.2 Analysis
5 Western Cape Closed Championship 2022 (Open) 2022/09/24 2022/09/25 Cape Winelands (WCW) Standard 70 0.87 6 5 0.0 857.3 777.0 Analysis
4 Robertson Chess 2020 (Open) 2020/03/07 2020/03/07 Cape Winelands (WCW) Rapid 30 0.60 5 5 3.0 790.3 786.2 Analysis
3 Robertson Strategema 2019 (Open) 2019/10/05 2019/10/05 Cape Winelands (WCW) Rapid 30 0.60 5 5 1.0 776.4 761.0 Analysis
2 SA Braille Worcester 2019 2019/03/23 2019/03/24 Cape Winelands (WCW) Standard 90 0.94 5 4 0.0 805.0 807.8 Analysis
1 Sa Braille Worcester Open 2018 2018/04/27 2018/04/28 Cape Winelands (WCW) Standard 90 0.94 7 2 1.5 761.0 761.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 0 1 4 0.5 10.0 -340.0 1170.3 830.3
White 3 0 1 2 0.5 16.7 -283.3 1266.6 983.3
Black 2 0 0 2 0.0 0.0 -425.0 1025.7 600.7
Standard All 5 0 1 4 0.5 10.0 -340.0 1170.3 830.3
White 3 0 1 2 0.5 16.7 -283.3 1266.6 983.3
Black 2 0 0 2 0.0 0.0 -425.0 1025.7 600.7
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 31 6 3 22 7.5 24.2 -219.4 1160.1 940.7
White 16 4 2 10 5.0 31.3 -159.4 1143.0 983.6
Black 15 2 1 12 2.5 16.7 -283.3 1178.3 894.9
Standard All 21 2 3 16 3.5 16.7 -283.3 1145.1 861.7
White 12 1 2 9 2.0 16.7 -283.3 1153.3 870.0
Black 9 1 1 7 1.5 16.7 -283.3 1134.1 850.8
Rapid All 10 4 0 6 4.0 40.0 -85.0 1191.6 1106.6
White 4 3 0 1 3.0 75.0 212.5 1112.2 1324.7
Black 6 1 0 5 1.0 16.7 -283.3 1244.5 961.2
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 268080006 Rossouw, J (Joan) 3 0.0 0 0 3 0.0 825.3 -425.0 400.3 View list
2 171003456 Bresler, C (Conrad) 3 0.0 0 0 3 0.0 837.5 -425.0 412.5 View list
3 2820100533 Bezuidenhout, S (Simone) 2 1.0 1 0 1 50.0 783.0 0.0 783.0 View list
4 182022823 Meyer, L (Lukas) 2 0.5 0 1 1 25.0 783.0 -212.5 570.5 View list
5 164032165 Richter, HL (Heinrich) 2 0.0 0 0 2 0.0 816.3 -425.0 391.3 View list
6 145010473 Geyer, D (David) 2 0.0 0 0 2 0.0 820.8 -425.0 395.8 View list
7 2870119390 Mare, I (Isabel) 1 1.0 1 0 0 100.0 790.3 425.0 1215.3 View list
8 2870100536 Kriel, IM (Isabel Mare) 1 1.0 1 0 0 100.0 842.3 425.0 1267.3 View list
9 1980119392 Rossouw, I (Iain) 1 1.0 1 0 0 100.0 790.3 425.0 1215.3 View list
10 275031506 Rahn, MC (Marlene) 1 1.0 1 0 0 100.0 776.4 425.0 1201.4 View list
11 2870133473 Verrynne, S (Sunet) 1 1.0 1 0 0 100.0 790.3 425.0 1215.3 View list
12 1680139909 Scheepers, GP (George Philippus) 1 0.5 0 1 0 50.0 842.3 0.0 842.3 View list
13 184060795 Ngwevela, L (Luzuku) 1 0.5 0 1 0 50.0 865.2 0.0 865.2 View list
14 1800119394 Uys, J (Jacques) 1 0.0 0 0 1 0.0 776.4 -425.0 351.4 View list
15 2080115001 Ntabeni, P (Phelisa) 1 0.0 0 0 1 0.0 857.3 -425.0 432.3 View list
16 210088278 Nieuwoudt, N (Noreht) 1 0.0 0 0 1 0.0 857.3 -425.0 432.3 View list
17 103086662 Klue, C (Christiaan) 1 0.0 0 0 1 0.0 857.3 -425.0 432.3 View list
18 288014490 Joseph, JMA (Juanbrey) 1 0.0 0 0 1 0.0 790.3 -425.0 365.3 View list
19 107064069 Drury, N (Nicholas) 1 0.0 0 0 1 0.0 857.3 -425.0 432.3 View list
20 156005535 Cordier, P (Pieter) 1 0.0 0 0 1 0.0 865.2 -425.0 440.2 View list