Player Page

Koopman, L (Leo-Arlin)
Dob: 2015/07/06 (U10)
Gender: Male
Chess SA id: 1150153170
FIDE id:
Region: West Coast (WCU)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (54 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 rating1210.8
Current Weighted rating1198.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1210.8
Current highest rating achieved1227.2
Current floor (min rating allowed)727.2
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)±163.3
Current Raw change used (final)0.0
Projected new Raw rating1210.8
Projected new Weighed rating1103.1
Projected new Weighted performance1058.3
Projected new final Raw rating (if new WP > new Raw)1210.8
Projected new highest rating1227.2
Projected new floor727.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1210.8
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 rating1180.9
Current Weighted rating1198.5
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1198.5
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±170.4
Current Raw change used (final)0.0
Projected new Raw rating1180.9
Projected new Weighed rating1102.5
Projected new Weighted performance375.8
Projected new final Raw rating (if new WP > new Raw)1180.9
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1180.9
Projected effective change (new Official - current Official)-17.6
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 rating1252.9
Current Weighted rating1205.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1252.9
Current highest rating achieved1252.9
Current floor (min rating allowed)752.9
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)±153.8
Current Raw change used (final)0.0
Projected new Raw rating1252.9
Projected new Weighed rating1109.9
Projected new Weighted performance951.7
Projected new final Raw rating (if new WP > new Raw)1252.9
Projected new highest rating1252.9
Projected new floor752.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1252.9
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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 rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.0 1227.2 1200.0 Analysis
2 West Coast Schools Chess Prestige Championships 2024 (U9 Boys) 2024/03/09 2024/03/09 West Coast (WCU) Rapid 30 0.60 5 5 3.0 1221.6 1243.2 Analysis
1 Bo-Weskus Skole Prestige 2024 (O9 Seuns) 2024/02/10 2024/02/10 West Coast (WCU) Rapid 30 0.60 5 5 4.0 1187.0 1184.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.0 1227.2 1200.0 Analysis
3 West Coast Schools Chess Prestige Championships 2024 (U9 Boys) 2024/03/09 2024/03/09 West Coast (WCU) Rapid 30 0.60 5 5 3.0 1221.6 1243.2 Analysis
2 Bo-Weskus Skole Prestige 2024 (O9 Seuns) 2024/02/10 2024/02/10 West Coast (WCU) Rapid 30 0.60 5 5 4.0 1187.0 1184.0 Analysis
1 Bo-Weskus Skole Prestige 2023 (O9 Seuns) 2023/03/04 2023/03/04 West Coast (WCU) Rapid 30 0.60 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 16 9 0 7 9.0 56.3 53.1 1216.3 1269.4
White 7 3 0 4 3.0 42.9 -60.7 1234.4 1173.7
Black 9 6 0 3 6.0 66.7 141.7 1202.1 1343.8
Standard All 6 2 0 4 2.0 33.3 -141.7 1290.2 1148.5
White 3 1 0 2 1.0 33.3 -141.7 1321.4 1179.7
Black 3 1 0 2 1.0 33.3 -141.7 1259.0 1117.4
Rapid All 10 7 0 3 7.0 70.0 170.0 1171.9 1341.9
White 4 2 0 2 2.0 50.0 0.0 1169.2 1169.2
Black 6 5 0 1 5.0 83.3 283.3 1173.7 1457.0
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 10 2 9 11.0 52.4 20.2 1212.2 1232.5
White 10 4 1 5 4.5 45.0 -42.5 1231.1 1188.6
Black 11 6 1 4 6.5 59.1 77.3 1195.1 1272.4
Standard All 6 2 0 4 2.0 33.3 -141.7 1290.2 1148.5
White 3 1 0 2 1.0 33.3 -141.7 1321.4 1179.7
Black 3 1 0 2 1.0 33.3 -141.7 1259.0 1117.4
Rapid All 15 8 2 5 9.0 60.0 85.0 1181.0 1266.0
White 7 3 1 3 3.5 50.0 0.0 1192.4 1192.4
Black 8 5 1 2 5.5 68.8 159.4 1171.1 1330.5
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 1150139119 Steenkamp, W (Willem) 3 0.0 0 0 3 0.0 1204.7 -425.0 779.7 View list
2 1160192590 Esterhuyse, N (Nicol) 2 2.0 2 0 0 100.0 1204.3 425.0 1629.3 View list
3 1160148063 Marner, L (Loannes) 1 1.0 1 0 0 100.0 1227.2 425.0 1652.2 View list
4 1150143115 Solomons, C (Chadley) 1 1.0 1 0 0 100.0 1187.0 425.0 1612.0 View list
5 1160153148 Sacco, A (Aldrin) 1 1.0 1 0 0 100.0 1187.0 425.0 1612.0 View list
6 1150139120 Van Wyk, N (Nicolaas) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1160153833 Van Eeden, C (Christiaan) 1 1.0 1 0 0 100.0 1227.2 425.0 1652.2 View list
8 1160151390 Oberholzer, J (Justin) 1 1.0 1 0 0 100.0 1221.6 425.0 1646.6 View list
9 1150143114 Mouton, L (Luhaygo) 1 1.0 1 0 0 100.0 1187.0 425.0 1612.0 View list
10 1150154608 Chetty, D (Duke) 1 1.0 1 0 0 100.0 1221.6 425.0 1646.6 View list
11 1150153163 Brits, A (Arno) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
12 1140139148 Milford, M (Mihasquo) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
13 1150148291 Musakwa, C (Cole) 1 0.0 0 0 1 0.0 1227.2 -425.0 802.2 View list
14 1160148876 Prins, K (Kai) 1 0.0 0 0 1 0.0 1227.2 -425.0 802.2 View list
15 1150150376 Erasmus, D (Daniel) 1 0.0 0 0 1 0.0 1221.6 -425.0 796.6 View list
16 1150192630 Don, E (El Deano) 1 0.0 0 0 1 0.0 1221.6 -425.0 796.6 View list
17 1150150107 Burnett, T (Tomas) 1 0.0 0 0 1 0.0 1227.2 -425.0 802.2 View list
18 1150139115 Bester, N (Neyma) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list