Player Page

Witbooi, J (Joy)
Dob: 2000/01/05 (Adult)
Gender: Female
Chess SA id: 200043136
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2018/04/29 (2253 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 rating808.0
Current Weighted rating777.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)808.0
Current highest rating achieved808.0
Current floor (min rating allowed)500.0
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)±289.9
Current Raw change used (final)0.0
Projected new Raw rating808.0
Projected new Weighed rating715.8
Projected new Weighted performance156.7
Projected new final Raw rating (if new WP > new Raw)808.0
Projected new highest rating808.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)808.0
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 rating808.0
Current Weighted rating770.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)808.0
Current highest rating achieved808.0
Current floor (min rating allowed)500.0
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)±289.9
Current Raw change used (final)0.0
Projected new Raw rating808.0
Projected new Weighed rating709.9
Projected new Weighted performance121.1
Projected new final Raw rating (if new WP > new Raw)808.0
Projected new highest rating808.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)808.0
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 rating645.2
Current Weighted rating645.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)645.2
Current highest rating achieved645.2
Current floor (min rating allowed)500.0
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)±365.5
Current Raw change used (final)0.0
Projected new Raw rating645.2
Projected new Weighed rating593.6
Projected new Weighted performance62.5
Projected new final Raw rating (if new WP > new Raw)645.2
Projected new highest rating645.2
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)645.2
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 rating570.4
Current Weighted rating570.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)570.4
Current highest rating achieved570.4
Current floor (min rating allowed)500.0
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)±406.6
Current Raw change used (final)0.0
Projected new Raw rating570.4
Projected new Weighed rating524.8
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating570.4
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)570.4
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Spar All Girls Festival 2018 2018/04/28 2018/04/29 Buffalo City (EBC) Standard 60 0.83 8 8 3.0 693.8 660.4 Analysis
2 Cape Winelands Schools Prestige 2018 (U18 Girls) 2018/03/24 2018/03/25 Cape Winelands (WCW) Standard 60 0.83 7 7 3.5 570.4 570.4 Analysis
1 Cape Winelands Schools Trials 1 2018 (U18 Girls) 2018/03/03 2018/03/03 Cape Winelands (WCW) Rapid 30 0.60 6 6 3.0 570.4 570.4 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
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 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 21 9 1 11 9.5 45.2 -40.5 941.2 900.8
White 10 3 1 6 3.5 35.0 -127.5 1000.9 873.4
Black 11 6 0 5 6.0 54.5 38.6 887.0 925.7
Standard All 15 6 1 8 6.5 43.3 -56.7 958.8 902.2
White 7 2 1 4 2.5 35.7 -121.4 1037.5 916.1
Black 8 4 0 4 4.0 50.0 0.0 890.0 890.0
Rapid All 6 3 0 3 3.0 50.0 0.0 897.3 897.3
White 3 1 0 2 1.0 33.3 -141.7 915.4 773.7
Black 3 2 0 1 2.0 66.7 141.7 879.1 1020.8
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 202046589 Booysen, L (Lee-Ann) 2 0.0 0 0 2 0.0 570.4 -425.0 145.4 View list
2 202072886 Dastile, L (Lulamela) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
3 202087317 Olivier, E (Elginay) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
4 201054287 Mhlabane, N (Nelitha) 1 1.0 1 0 0 100.0 693.8 425.0 1118.8 View list
5 201016479 Kritzinger, A (Abbigail) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
6 202012249 Hendricks, LC (Lesego) 1 1.0 1 0 0 100.0 693.8 425.0 1118.8 View list
7 2020098019 Williams, B (Bernelee) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
8 202077772 Sym, M (Mcayla) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
9 202087320 September, A (Amelia) 1 1.0 1 0 0 100.0 570.4 425.0 995.4 View list
10 203055279 Reddy, D (Drianca) 1 1.0 1 0 0 100.0 693.8 425.0 1118.8 View list
11 202030284 Pietersen, J (Jody-Lee) 1 0.5 0 1 0 50.0 570.4 0.0 570.4 View list
12 201041927 Visser, L (Louhandri) 1 0.0 0 0 1 0.0 693.8 -425.0 268.8 View list
13 202039440 Van Der Walt, AB (Bernize) 1 0.0 0 0 1 0.0 693.8 -425.0 268.8 View list
14 200076641 Truter, T (Tehillah) 1 0.0 0 0 1 0.0 570.4 -425.0 145.4 View list
15 202049758 Pietersen, G (Genevieve) 1 0.0 0 0 1 0.0 570.4 -425.0 145.4 View list
16 202090447 Gosa, C (Cwenga) 1 0.0 0 0 1 0.0 693.8 -425.0 268.8 View list
17 202049736 Davids, C (Christa) 1 0.0 0 0 1 0.0 570.4 -425.0 145.4 View list
18 204082201 Commaille, E (Erin) 1 0.0 0 0 1 0.0 693.8 -425.0 268.8 View list
19 201079539 Amrouni, G (Gabrielle) 1 0.0 0 0 1 0.0 693.8 -425.0 268.8 View list
20 202076692 Adams, L (Logan) 1 0.0 0 0 1 0.0 570.4 -425.0 145.4 View list