Player Page

Booysen, J (Jakob)
Dob: 2006/12/03 (U20)
Gender: Male
Chess SA id: 1060162869
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/05/11 (7 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 rating1120.7
Curent Weighted rating1173.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1173.6
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month4
Score (S)1.0
Expected score (We)1.81
Difference (S-We)-0.81
Current Raw change (no limits, including tournament time weight)-17.5
Current min/max change allowed (with limits)±185.6
Current Raw change used (final)-17.5
Projected new Raw rating1103.2
Projected new Weighed rating1167.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1167.1
Projected effective change (new Official - current Official)-6.5
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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 rating1166.5
Curent Weighted rating1190.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1190.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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)±173.9
Current Raw change used (final)0.0
Projected new Raw rating1166.5
Projected new Weighed rating1187.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1187.7
Projected effective change (new Official - current Official)-2.2
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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 rating1097.1
Curent Weighted rating1164.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1164.7
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
Current K-factor36
Games played this month4
Score (S)1.0
Expected score (We)1.52
Difference (S-We)-0.52
Current Raw change (no limits, including tournament time weight)-18.7
Current min/max change allowed (with limits)±192.0
Current Raw change used (final)-18.7
Projected new Raw rating1078.4
Projected new Weighed rating1156.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1156.6
Projected effective change (new Official - current Official)-8.1
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Tournament: Robertson Strategema Chess May 2024 (Open)
Start: 2024/05/11  End: 2024/05/11  Host: WCW  Type: Rapid   Time: 30  Time weight: 0.60  Rounds: 4
Games: 4  Score: 1.0
Main rating: 1120.7  Rating gain/loss: -17.5
Type rating: 1097.1  Rating gain/loss: -18.7
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Robertson Strategema Chess May 2024 (Open) 2024/05/11 2024/05/11 Cape Winelands (WCW) Rapid 30 0.60 5 4 1.0 1120.7 1097.1 Analysis
2 Cape Winelands Schools - HS Trials 1 2024 (U18 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 1.5 1156.1 1163.3 Analysis
1 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 5 1.0 1179.3 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Robertson Strategema Chess May 2024 (Open) 2024/05/11 2024/05/11 Cape Winelands (WCW) Rapid 30 0.60 5 4 1.0 1120.7 1097.1 Analysis
3 Cape Winelands Schools - HS Trials 1 2024 (U18 Boys) 2024/02/17 2024/02/17 Cape Winelands (WCW) Rapid 35 0.66 6 6 1.5 1156.1 1163.3 Analysis
2 Cape Winelands - Marie Delport Memorial 2024 (Open) 2024/01/27 2024/01/28 Cape Winelands (WCW) Standard 70 0.87 6 5 1.0 1179.3 1200.0 Analysis
1 Worcester Knock-Out 2023 (U18 Boys) 2023/10/14 2023/10/14 Cape Winelands (WCW) Rapid 30 0.60 6 6 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 15 3 1 11 3.5 23.3 -226.7 1211.9 985.2
White 8 3 0 5 3.0 37.5 -106.3 1269.6 1163.4
Black 7 0 1 6 0.5 7.1 -364.3 1145.9 781.6
Standard All 5 1 0 4 1.0 20.0 -255.0 1318.6 1063.6
White 3 1 0 2 1.0 33.3 -141.7 1350.0 1208.4
Black 2 0 0 2 0.0 0.0 -425.0 1271.4 846.4
Rapid All 10 2 1 7 2.5 25.0 -212.5 1158.5 946.0
White 5 2 0 3 2.0 40.0 -85.0 1221.4 1136.4
Black 5 0 1 4 0.5 10.0 -340.0 1095.6 755.6
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 5 1 15 5.5 26.2 -202.4 1210.1 1007.7
White 11 3 0 8 3.0 27.3 -193.2 1248.7 1055.5
Black 10 2 1 7 2.5 25.0 -212.5 1167.6 955.1
Standard All 5 1 0 4 1.0 20.0 -255.0 1318.6 1063.6
White 3 1 0 2 1.0 33.3 -141.7 1350.0 1208.4
Black 2 0 0 2 0.0 0.0 -425.0 1271.4 846.4
Rapid All 16 4 1 11 4.5 28.1 -185.9 1176.2 990.2
White 8 2 0 6 2.0 25.0 -212.5 1210.7 998.2
Black 8 2 1 5 2.5 31.3 -159.4 1141.7 982.3
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 1070191715 Mackenzie, J (Jarian) 2 1.5 1 1 0 75.0 1167.7 212.5 1380.2 View list
2 1070192765 Cedras, C (Charl) 1 1.0 1 0 0 100.0 1156.1 425.0 1581.1 View list
3 1060158346 Faro, H (Henson) 1 1.0 1 0 0 100.0 1120.7 425.0 1545.7 View list
4 1060162873 Theron, T (Thomas) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1060162868 Alexander, E (Ethan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 1080137618 Weimers, J (Jemal) 1 0.0 0 0 1 0.0 1120.7 -425.0 695.7 View list
7 1080137613 Topp, K (Kelvin) 1 0.0 0 0 1 0.0 1156.1 -425.0 731.1 View list
8 1080192777 Solomon, X (Xavier) 1 0.0 0 0 1 0.0 1156.1 -425.0 731.1 View list
9 1070108819 Smit, R (Rikis) 1 0.0 0 0 1 0.0 1179.3 -425.0 754.3 View list
10 1080142360 Scheepers, D (Durran) 1 0.0 0 0 1 0.0 1156.1 -425.0 731.1 View list
11 2070137625 Nortje, M (Melvinia) 1 0.0 0 0 1 0.0 1120.7 -425.0 695.7 View list
12 106084224 Mootsi, S (Seemo) 1 0.0 0 0 1 0.0 1156.1 -425.0 731.1 View list
13 1060137568 Maritz, P (Pieter) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 108090548 Lewaks, S (Shaundre) 1 0.0 0 0 1 0.0 1179.3 -425.0 754.3 View list
15 1110132074 Kwabe, A (Awonke) 1 0.0 0 0 1 0.0 1179.3 -425.0 754.3 View list
16 108086610 Isaacs, S (Sean-Patrick) 1 0.0 0 0 1 0.0 1179.3 -425.0 754.3 View list
17 1060147579 Hlalele, L (Le-Eme) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 1060162870 Dos Martiris, A (Antonio) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 187006098 Davids, JW (Jo-Wayne) 1 0.0 0 0 1 0.0 1120.7 -425.0 695.7 View list
20 1060108636 Brown, G (Gareth) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list