Player Page

Koch, S (Stefan)
Dob: 2003/11/01 (Adult)
Gender: Male
Chess SA id: 103086494
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2020/03/07 (1721 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 rating1061.8
Current Weighted rating1061.8
Current Weighted performance367.0
Current official/published rating (highest between Raw, WR and WP)1061.8
Current highest rating achieved1116.6
Current floor (min rating allowed)616.6
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)±201.9
Current Raw change used (final)0.0
Projected new Raw rating1061.8
Projected new Weighed rating976.9
Projected new Weighted performance367.0
Projected new final Raw rating (if new WP > new Raw)1061.8
Projected new highest rating1116.6
Projected new floor616.6
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1061.8
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 rating1056.2
Current Weighted rating1056.2
Current Weighted performance367.0
Current official/published rating (highest between Raw, WR and WP)1056.2
Current highest rating achieved1119.0
Current floor (min rating allowed)619.0
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)±203.5
Current Raw change used (final)0.0
Projected new Raw rating1056.2
Projected new Weighed rating971.7
Projected new Weighted performance367.0
Projected new final Raw rating (if new WP > new Raw)1056.2
Projected new highest rating1119.0
Projected new floor619.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1056.2
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 rating532.8
Current Weighted rating532.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)532.8
Current highest rating achieved532.8
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)±429.0
Current Raw change used (final)0.0
Projected new Raw rating532.8
Projected new Weighed rating490.2
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating532.8
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)532.8
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 rating532.8
Current Weighted rating532.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)532.8
Current highest rating achieved532.8
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)±429.0
Current Raw change used (final)0.0
Projected new Raw rating532.8
Projected new Weighed rating490.2
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating532.8
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)532.8
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Hoerskool Drie Riviere 2020 (LSEN) 2020/03/07 2020/03/07 Sedibeng (GSV) Standard 61 0.83 5 4 1.0 1116.6 1119.0 Analysis
5 Eureka LSEN Skaak/Chess 2019 (A) 2019/10/09 2019/10/09 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 748.2 790.0 Analysis
4 Eureka Chess Open 2019 (D LSEN) 2019/07/27 2019/07/27 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 649.3 670.8 Analysis
3 Eureka Chess Open 2018 (B) 2018/09/29 2018/09/29 Sedibeng (GSV) Standard 61 0.83 5 3 0.0 581.9 592.0 Analysis
2 Eureka Chess Open 2018 (G LSEN) 2018/09/29 2018/09/29 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 581.9 592.0 Analysis
1 Word of Life Open 2018 (LSEN) 2018/05/12 2018/05/12 Sedibeng (GSV) Standard 60 0.83 5 4 1.5 532.8 532.8 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 26 11 2 13 12.0 46.2 -32.7 1111.9 1079.2
White 12 4 1 7 4.5 37.5 -106.3 1093.6 987.4
Black 14 7 1 6 7.5 53.6 30.4 1127.6 1158.0
Standard All 26 11 2 13 12.0 46.2 -32.7 1111.9 1079.2
White 12 4 1 7 4.5 37.5 -106.3 1093.6 987.4
Black 14 7 1 6 7.5 53.6 30.4 1127.6 1158.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 102095922 Muller, M (Mike) 2 0.0 0 0 2 0.0 665.0 -425.0 240.0 View list
2 2050154122 Ndamse, O (Onebango) 1 1.0 1 0 0 100.0 649.3 425.0 1074.3 View list
3 1030116979 Khonou, T (Thabo) 1 1.0 1 0 0 100.0 748.2 425.0 1173.2 View list
4 1030119309 Selatola, K (Khomotso) 1 1.0 1 0 0 100.0 748.2 425.0 1173.2 View list
5 1040116983 Molebatsi, A (Alfred) 1 1.0 1 0 0 100.0 649.3 425.0 1074.3 View list
6 1040106645 Mohoje, K (Kgotso) 1 1.0 1 0 0 100.0 649.3 425.0 1074.3 View list
7 1000106643 Mataumg, H (Hopeyell) 1 1.0 1 0 0 100.0 581.9 425.0 1006.9 View list
8 1030106657 Mabaso, L (Lebohang) 1 1.0 1 0 0 100.0 748.2 425.0 1173.2 View list
9 105066837 Joubert, G (Gerrie) 1 1.0 1 0 0 100.0 532.8 425.0 957.8 View list
10 104050915 Janse Van Rensburg, J (Joshua) 1 1.0 1 0 0 100.0 1116.6 425.0 1541.6 View list
11 1040106653 Engelbrecht, J (Juan) 1 1.0 1 0 0 100.0 581.9 425.0 1006.9 View list
12 1040106650 Tsundo, S (Siyabonga) 1 1.0 1 0 0 100.0 581.9 425.0 1006.9 View list
13 1000098065 Botha, E (Eben) 1 0.5 0 1 0 50.0 532.8 0.0 532.8 View list
14 101086517 Scheepers, C (Coenraad) 1 0.5 0 1 0 50.0 748.2 0.0 748.2 View list
15 1040106649 Sikhosasa, E (Excellent) 1 0.0 0 0 1 0.0 581.9 -425.0 156.9 View list
16 1040098063 Seipane, O (Omar) 1 0.0 0 0 1 0.0 532.8 -425.0 107.8 View list
17 1110101668 Reinhardt, J (Johannes) 1 0.0 0 0 1 0.0 532.8 -425.0 107.8 View list
18 103086482 Nxumalo, S (Sanele) 1 0.0 0 0 1 0.0 581.9 -425.0 156.9 View list
19 1010117001 Motaung, A (Albert) 1 0.0 0 0 1 0.0 649.3 -425.0 224.3 View list
20 1040117000 Molefi, K (Kagiso) 1 0.0 0 0 1 0.0 649.3 -425.0 224.3 View list