Player Page

Commerford, J (Jeffrey)
Dob: 1956/02/01 (Adult)
Gender: Male
Chess SA id: 1560159289
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2024/06/08 (15 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 rating1281.6
Current Weighted rating1232.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1281.6
Current highest rating achieved1281.6
Current floor (min rating allowed)781.6
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)0.99
Difference (S-We)1.25
Current Raw change (no limits, including tournament time weight)45.1
Current min/max change allowed (with limits)±147.6
Current Raw change used (final)45.1
Projected new Raw rating1326.7
Projected new Weighed rating1134.5
Projected new Weighted performance1307.9
Projected new final Raw rating (if new WP > new Raw)1326.7
Projected new highest rating1326.7
Projected new floor826.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1326.7
Projected effective change (new Official - current Official)+45.1
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 rating1296.2
Current Weighted rating1238.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1296.2
Current highest rating achieved1296.2
Current floor (min rating allowed)796.2
Current K-factor36
Games played this month5
Score (S)2.5
Expected score (We)1.05
Difference (S-We)1.45
Current Raw change (no limits, including tournament time weight)52.2
Current min/max change allowed (with limits)±144.6
Current Raw change used (final)52.2
Projected new Raw rating1348.4
Projected new Weighed rating1140.7
Projected new Weighted performance1307.9
Projected new final Raw rating (if new WP > new Raw)1348.4
Projected new highest rating1348.4
Projected new floor848.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1348.4
Projected effective change (new Official - current Official)+52.2
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 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
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
Tournament: FIDE in the West 2024 (Open)
Start: 2024/06/08  End: 2024/06/08  Host: GWR  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 2.5
Main rating: 1281.6  Rating gain/loss: 45.1
Type rating: 1296.2  Rating gain/loss: 52.2
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 FIDE in the West 2024 (Open) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 2.5 1281.6 1296.2 Analysis
1 2024 West Rand RHS Open (Open) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 2.0 1249.0 1259.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 FIDE in the West 2024 (Open) 2024/06/08 2024/06/08 West Rand (GWR) Standard 60 0.83 5 5 2.5 1281.6 1296.2 Analysis
3 2024 West Rand RHS Open (Open) 2024/04/13 2024/04/13 West Rand (GWR) Standard 60 0.83 5 5 2.0 1249.0 1259.8 Analysis
2 Gauteng Premier's Games West Rand 2023 2023/12/02 2023/12/02 West Rand (GWR) Standard 60 0.83 5 5 4.0 1214.0 1217.3 Analysis
1 West Rand at Bastion 2023 (Open) 2023/08/05 2023/08/05 West Rand (GWR) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 4 1 5 4.5 45.0 -42.5 1540.7 1498.2
White 6 3 1 2 3.5 58.3 70.8 1506.1 1576.9
Black 4 1 0 3 1.0 25.0 -212.5 1592.5 1380.0
Standard All 10 4 1 5 4.5 45.0 -42.5 1540.7 1498.2
White 6 3 1 2 3.5 58.3 70.8 1506.1 1576.9
Black 4 1 0 3 1.0 25.0 -212.5 1592.5 1380.0
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 20 10 1 9 10.5 52.5 21.3 1405.8 1427.1
White 12 7 1 4 7.5 62.5 106.3 1412.5 1518.7
Black 8 3 0 5 3.0 37.5 -106.3 1395.8 1289.6
Standard All 20 10 1 9 10.5 52.5 21.3 1405.8 1427.1
White 12 7 1 4 7.5 62.5 106.3 1412.5 1518.7
Black 8 3 0 5 3.0 37.5 -106.3 1395.8 1289.6
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1130131230 Changara, A (Alvis Tafadzwa) 1 1.0 1 0 0 100.0 1249.0 425.0 1674.0 View list
2 194017485 Lechalaba, K (Kenneth) 1 1.0 1 0 0 100.0 1214.0 425.0 1639.0 View list
3 1010148075 Hennings, B (Bevan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
4 1120152493 Hadebe, P (Paul) 1 1.0 1 0 0 100.0 1281.6 425.0 1706.6 View list
5 290024364 Molao, R (Rethabile) 1 1.0 1 0 0 100.0 1214.0 425.0 1639.0 View list
6 2070100937 Maseko, U (Unathi) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1670191386 Makebe, N (Neo) 1 1.0 1 0 0 100.0 1214.0 425.0 1639.0 View list
8 1070136214 Visi, M (Moloko) 1 1.0 1 0 0 100.0 1249.0 425.0 1674.0 View list
9 1530149203 Van Rensburg, R (Rudy) 1 1.0 1 0 0 100.0 1281.6 425.0 1706.6 View list
10 1720144541 Phakathi, S (Siyinqaba) 1 1.0 1 0 0 100.0 1214.0 425.0 1639.0 View list
11 1100148730 Nkabinde, L (Lwazi) 1 0.5 0 1 0 50.0 1281.6 0.0 1281.6 View list
12 198050912 Caleni, T (Thulani) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
13 1110140059 Tshetlhe, B (Blessing) 1 0.0 0 0 1 0.0 1249.0 -425.0 824.0 View list
14 1110103928 Slabbert, ZN (Zander Nicolaas) 1 0.0 0 0 1 0.0 1249.0 -425.0 824.0 View list
15 1080136200 Sehularo, K (Kganya) 1 0.0 0 0 1 0.0 1249.0 -425.0 824.0 View list
16 1100103439 Mungal, E (Ethan) 1 0.0 0 0 1 0.0 1281.6 -425.0 856.6 View list
17 197071832 Mthembu, N (Nkululeko) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 177017896 Letsoalo, PM (Peter) 1 0.0 0 0 1 0.0 1281.6 -425.0 856.6 View list
19 104009473 Fihla, LL (Lonwabo) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 1730144539 Collins, H (Harry) 1 0.0 0 0 1 0.0 1214.0 -425.0 789.0 View list