Player Page

Els, JA (Jeffrey Allan)
Dob: 2008/06/18 (U18)
Gender: Male
Chess SA id: 1080113648
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2024/01/14 (315 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 rating1169.4
Current Weighted rating1176.9
Current Weighted performance923.7
Current official/published rating (highest between Raw, WR and WP)1176.9
Current highest rating achieved1276.5
Current floor (min rating allowed)776.5
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)±173.2
Current Raw change used (final)0.0
Projected new Raw rating1169.4
Projected new Weighed rating1083.1
Projected new Weighted performance923.7
Projected new final Raw rating (if new WP > new Raw)1169.4
Projected new highest rating1276.5
Projected new floor776.5
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1169.4
Projected effective change (new Official - current Official)-7.5
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 rating1172.4
Current Weighted rating1180.1
Current Weighted performance918.8
Current official/published rating (highest between Raw, WR and WP)1180.1
Current highest rating achieved1267.6
Current floor (min rating allowed)767.6
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)±172.5
Current Raw change used (final)0.0
Projected new Raw rating1172.4
Projected new Weighed rating1086.1
Projected new Weighted performance918.8
Projected new final Raw rating (if new WP > new Raw)1172.4
Projected new highest rating1267.6
Projected new floor767.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1172.4
Projected effective change (new Official - current Official)-7.7
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 rating1167.6
Current Weighted rating1167.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1167.6
Current highest rating achieved1167.6
Current floor (min rating allowed)667.6
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)±173.6
Current Raw change used (final)0.0
Projected new Raw rating1167.6
Projected new Weighed rating1074.2
Projected new Weighted performance294.4
Projected new final Raw rating (if new WP > new Raw)1167.6
Projected new highest rating1167.6
Projected new floor667.6
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1167.6
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
1 2024 Gauteng Inter-Region Chess Championship (U16B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 0.0 1203.9 1209.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
30 2024 Gauteng Inter-Region Chess Championship (U16B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 0.0 1203.9 1209.8 Analysis
29 Gauteng D7 Teams 2023 (U15) 2023/08/12 2023/08/12 Sedibeng (GSV) Standard 60 0.83 5 1 1.0 1188.1 1191.4 Analysis
28 Gauteng Schools Individual Finals 2023 (U15 Boys) 2023/05/27 2023/05/27 Ekurhuleni (GE) Standard 60 0.83 5 4 1.0 1135.5 1128.0 Analysis
27 Gauteng Schools D7 2023 (U15 Boys) 2023/05/20 2023/05/20 Sedibeng (GSV) Standard 60 0.83 5 5 4.0 1135.5 1128.0 Analysis
26 2022 South African Junior Team Chess Championships (U16 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 0.0 1242.1 1233.8 Analysis
25 OR Tambo Soncini Finals 2022 (Boys) 2022/10/29 2022/10/29 Ekurhuleni (GE) Rapid 30 0.60 5 5 2.0 1248.4 1200.0 Analysis
24 Overvaal Open 2022 (C) 2022/08/06 2022/08/06 Sedibeng (GSV) Standard 60 0.83 5 4 1.0 1276.5 1267.6 Analysis
23 Sedibeng Trials 20 November 2021 (A) 2021/11/20 2021/11/20 Sedibeng (GSV) Standard 60 0.83 5 5 3.5 1254.1 1238.4 Analysis
22 2019 South African Junior Team Championships (U12D) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 6.0 1177.8 1156.7 Analysis
21 Eagles Open 2019 (B) 2019/11/23 2019/11/23 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 1195.7 1177.2 Analysis
20 GE vs GSV Inter Regional 2019 (U12A) 2019/10/26 2019/10/26 Ekurhuleni (GE) Standard 60 0.83 5 5 1.5 1240.2 1231.6 Analysis
19 Fonteine Ope 2019 (C) 2019/10/19 2019/10/19 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1240.2 1231.6 Analysis
18 LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (D) 2019/08/31 2019/08/31 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 1255.7 1251.0 Analysis
17 Overvaal Chess Open 2019 (D) 2019/06/15 2019/06/15 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1219.0 1211.1 Analysis
16 Drie Riviere Open 2019 (D) 2019/06/08 2019/06/08 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1219.0 1211.1 Analysis
15 Vaal Chess Club Open 2019 (D) 2019/06/01 2019/06/01 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 1219.0 1211.1 Analysis
14 2019 Gauteng Primary Schools Individual Chess Championships (U11 Boys) 2019/05/25 2019/05/25 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1011.3 996.8 Analysis
13 D7 Individuals 2019 (U11 Boys) 2019/05/04 2019/05/04 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 1011.3 996.8 Analysis
12 Dirk de Koster Chess Open 2019 (D) 2019/04/13 2019/04/13 Sedibeng (GSV) Standard 61 0.83 5 4 2.5 980.4 956.8 Analysis
11 South African Junior Team Championships 2018 (U12D) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 6 4.0 978.2 956.8 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 0 0 5 0.0 0.0 -425.0 1450.5 1025.5
White 2 0 0 2 0.0 0.0 -425.0 1458.6 1033.6
Black 3 0 0 3 0.0 0.0 -425.0 1445.0 1020.0
Standard All 5 0 0 5 0.0 0.0 -425.0 1450.5 1025.5
White 2 0 0 2 0.0 0.0 -425.0 1458.6 1033.6
Black 3 0 0 3 0.0 0.0 -425.0 1445.0 1020.0
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 148 72 10 66 77.0 52.0 17.2 1090.9 1108.2
White 73 34 5 34 36.5 50.0 0.0 1095.2 1095.2
Black 75 38 5 32 40.5 54.0 34.0 1086.8 1120.8
Standard All 143 70 10 63 75.0 52.4 20.8 1084.4 1105.2
White 71 34 5 32 36.5 51.4 12.0 1087.6 1099.6
Black 72 36 5 31 38.5 53.5 29.5 1081.2 1110.8
Rapid All 5 2 0 3 2.0 40.0 -85.0 1277.3 1192.3
White 2 0 0 2 0.0 0.0 -425.0 1364.4 939.4
Black 3 2 0 1 2.0 66.7 141.7 1219.3 1360.9
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 109089303 Tolmay, L (Llewellyn) 7 2.5 2 1 4 35.7 1150.1 -121.4 1028.6 View list
2 108092849 Majola, O (Omphile) 4 3.0 3 0 1 75.0 1099.0 212.5 1311.5 View list
3 1070098052 Eberwein, HJ (Heinrich) 4 0.0 0 0 4 0.0 1173.2 -425.0 748.2 View list
4 108076084 Du Plooy, J (Jumar) 2 2.0 2 0 0 100.0 1078.0 425.0 1503.0 View list
5 1120100417 Matla, K (Kemuel) 2 2.0 2 0 0 100.0 1254.9 425.0 1679.9 View list
6 1120100420 Rajagpaul, C (Cole) 2 2.0 2 0 0 100.0 1229.6 425.0 1654.6 View list
7 1120100418 Weber, KP (Keagan) 2 2.0 2 0 0 100.0 1248.0 425.0 1673.0 View list
8 1120103521 De Lange, H (Henro) 2 1.5 1 1 0 75.0 1247.2 212.5 1459.7 View list
9 1090111233 Farrell, J (Jonty) 2 1.0 1 0 1 50.0 1181.7 0.0 1181.7 View list
10 1090097407 Karsten, K (Keagan) 2 1.0 1 0 1 50.0 1049.0 0.0 1049.0 View list
11 1080107430 Mjekelejo, L (Luvuyo) 2 1.0 1 0 1 50.0 1127.8 0.0 1127.8 View list
12 109087966 Pretorius, PJ (Petrus) 2 1.0 1 0 1 50.0 1132.7 0.0 1132.7 View list
13 108072345 De Swardt, C (Chrizander) 2 0.5 0 1 1 25.0 1125.8 -212.5 913.3 View list
14 107086032 Naude, E (Enrique) 2 0.0 0 0 2 0.0 1176.6 -425.0 751.6 View list
15 110087161 Brenkman, C (Christopher) 1 1.0 1 0 0 100.0 1219.0 425.0 1644.0 View list
16 109083901 Botha, OJ (Owen) 1 1.0 1 0 0 100.0 1086.8 425.0 1511.8 View list
17 108091411 Botha, K (Kriegler) 1 1.0 1 0 0 100.0 1219.0 425.0 1644.0 View list
18 111087168 Cronje, E (Emile) 1 1.0 1 0 0 100.0 1086.8 425.0 1511.8 View list
19 108088042 Crawford, J (Jared) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
20 1130136148 Conradie, D (Dirk) 1 1.0 1 0 0 100.0 1276.5 425.0 1701.5 View list