Player Page

Johnson, J (Jerolin)
Dob: 2008/01/23 (U18)
Gender: Male
Chess SA id: 1080147904
FIDE id:
Region: West Coast (WCU)
Citizen: RSA
Title(s):
Last active: 2024/05/19 (1 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 rating1145.8
Curent Weighted rating1148.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1148.0
Current floor (min rating allowed)645.8
Current highest rating achieved1145.8
Current K-factor40
Games played this month9
Score (S)7.0
Expected score (We)2.76
Difference (S-We)4.24
Current Raw change (no limits, including tournament time weight)140.6
Current min/max change allowed (with limits)±179.1
Current Raw change used (final)140.6
Projected new Raw rating1286.4
Projected new Weighed rating1158.4
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1286.4
Projected effective change (new Official - current Official)+138.4
Projected new highest rating1286.4
Projected new floor786.4
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 rating1093.6
Curent Weighted rating1098.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1098.9
Current floor (min rating allowed)593.6
Current highest rating achieved1093.6
Current K-factor40
Games played this month5
Score (S)4.0
Expected score (We)1.22
Difference (S-We)2.78
Current Raw change (no limits, including tournament time weight)111.2
Current min/max change allowed (with limits)±193.0
Current Raw change used (final)111.2
Projected new Raw rating1204.8
Projected new Weighed rating1106.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1204.8
Projected effective change (new Official - current Official)+105.9
Projected new highest rating1204.8
Projected new floor704.8
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 rating1221.6
Curent Weighted rating1220.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1221.6
Current floor (min rating allowed)721.6
Current highest rating achieved1221.6
Current K-factor36
Games played this month4
Score (S)3.0
Expected score (We)1.71
Difference (S-We)1.29
Current Raw change (no limits, including tournament time weight)46.4
Current min/max change allowed (with limits)±160.8
Current Raw change used (final)46.4
Projected new Raw rating1268.0
Projected new Weighed rating1224.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1268.0
Projected effective change (new Official - current Official)+46.4
Projected new highest rating1268.0
Projected new floor768.0
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)721.6
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 floor721.6
Projected new K-facor36
Tournaments
Tournament: West Coast & Mykonos Open 2024 (Open)
Start: 2024/05/17  End: 2024/05/19  Host: WCU  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1145.8  Rating gain/loss: 102.3
Type rating: 1093.6  Rating gain/loss: 111.2
Analysis
Tournament: Lambersbaai Open 2024 (A)
Start: 2024/05/01  End: 2024/05/01  Host: WCU  Type: Rapid   Time: 32  Time weight: 0.63  Rounds: 4
Games: 4  Score: 3.0
Main rating: 1145.8  Rating gain/loss: 38.3
Type rating: 1221.6  Rating gain/loss: 46.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 West Coast & Mykonos Open 2024 (Open) 2024/05/17 2024/05/19 West Coast (WCU) Standard 90 0.94 6 5 4.0 1145.8 1093.6 Analysis
1 Lambersbaai Open 2024 (A) 2024/05/01 2024/05/01 West Coast (WCU) Rapid 32 0.63 5 4 3.0 1145.8 1221.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 West Coast & Mykonos Open 2024 (Open) 2024/05/17 2024/05/19 West Coast (WCU) Standard 90 0.94 6 5 4.0 1145.8 1093.6 Analysis
3 Lambersbaai Open 2024 (A) 2024/05/01 2024/05/01 West Coast (WCU) Rapid 32 0.63 5 4 3.0 1145.8 1221.6 Analysis
2 Clanwilliam Open 2022 (C) 2022/12/10 2022/12/10 West Coast (WCU) Rapid 35 0.66 5 5 3.0 1119.4 1200.0 Analysis
1 West Coast Open 2022 (Open) 2022/11/05 2022/11/05 West Coast (WCU) Standard 65 0.85 6 6 0.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 9 7 0 2 7.0 77.8 236.1 1309.7 1545.8
White 4 3 0 1 3.0 75.0 212.5 1287.3 1499.8
Black 5 4 0 1 4.0 80.0 255.0 1327.7 1582.7
Standard All 5 4 0 1 4.0 80.0 255.0 1350.6 1605.6
White 2 2 0 0 2.0 100.0 425.0 1269.5 1694.5
Black 3 2 0 1 2.0 66.7 141.7 1404.7 1546.4
Rapid All 4 3 0 1 3.0 75.0 212.5 1258.6 1471.1
White 2 1 0 1 1.0 50.0 0.0 1305.1 1305.1
Black 2 2 0 0 2.0 100.0 425.0 1212.1 1637.1
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 20 10 0 10 10.0 50.0 0.0 1271.3 1271.3
White 8 4 0 4 4.0 50.0 0.0 1271.7 1271.7
Black 12 6 0 6 6.0 50.0 0.0 1271.1 1271.1
Standard All 11 4 0 7 4.0 36.4 -115.9 1310.4 1194.5
White 4 2 0 2 2.0 50.0 0.0 1271.1 1271.1
Black 7 2 0 5 2.0 28.6 -182.1 1332.9 1150.7
Rapid All 9 6 0 3 6.0 66.7 141.7 1223.6 1365.2
White 4 2 0 2 2.0 50.0 0.0 1272.3 1272.3
Black 5 4 0 1 4.0 80.0 255.0 1184.5 1439.5
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 1120100598 Ellman, A (Andries) 2 1.0 1 0 1 50.0 1132.6 0.0 1132.6 View list
2 2130153778 Kujinga, T (Tawanayasha) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
3 1120139044 Koopman, V (Virat) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
4 1100154575 Kamfer, J (Johnlin) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
5 1140137106 Jordaan, L (Luke) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
6 1100103503 Arendse, Q (Quinwinne) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
7 1070304916 Salomo, C (Cohen) 1 1.0 1 0 0 100.0 1145.8 425.0 1570.8 View list
8 2130139089 Swartz, A (Ashan) 1 1.0 1 0 0 100.0 1119.4 425.0 1544.4 View list
9 1110148171 Swarts, C (Caleb) 1 1.0 1 0 0 100.0 1119.4 425.0 1544.4 View list
10 1110131962 Skippers, G (Gerano) 1 1.0 1 0 0 100.0 1119.4 425.0 1544.4 View list
11 1060112307 Wilson, J (Joshua) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
12 2100131696 Warner, A (Alicia) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
13 1000134275 Van Wyk, E (Ebrahim) 1 0.0 0 0 1 0.0 1145.8 -425.0 720.8 View list
14 1100110503 Shoshola, D (Diego) 1 0.0 0 0 1 0.0 1119.4 -425.0 694.4 View list
15 209090556 Sauls, J (Jada) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
16 2100142543 Love, C (Celine) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
17 1100116577 Hollenbaght, OJ (Owen James) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 2090096275 Farmer, J (Jaydean) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 206055118 Ellman, A (Anne-Belle) 1 0.0 0 0 1 0.0 1145.8 -425.0 720.8 View list