PLAYER PAGE
Personal

Koen, D (Dave)
Chess SA id
1050149089FIDE id
?Date of birth
2005-03-04 (Adult)Gender
MaleRegion
ZF Mgcawu (NZF)Citizen
RSATitles
Chess SA registered
NoLast active game
2023-10-14Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
Item | Main | Standard | Rapid | Blitz |
---|---|---|---|---|
Rating | 1125.3 | 1106.7 | 1200 | 1200 |
Raw rating | 1125.3 | 1106.7 | 1200 | 1200 |
Weighted rating | 1123 | 1103.7 | 1200 | 1200 |
Weighted performance | 0 | 0 | 0 | 0 |
Floor | 700 | 700 | 700 | 700 |
K-factor | 36 | 36 | 36 | 36 |
Min/Max rating change allowed | 184.4 | 189.4 | 165.8 | 165.8 |
Highest rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
Highest raw rating | 12002019-12-01 | 12002019-12-01 | 12002024-03-01 | 12002024-03-01 |
Highest weighted rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
Highest weighted performance | 12002019-12-01 | 12002019-12-01 | 12002024-03-01 | 12002024-03-01 |
Prediction | ||||
---|---|---|---|---|
Item | Main | Standard | Rapid | Blitz |
Rating change | 0 | 0 | 0 | 0 |
New rating | 1125.3 | 1106.7 | 1200 | 1200 |
Analysis | ||||
Rating | 1125.3 | 1106.7 | 1200 | 1200 |
Raw rating | 1125.3 | 1106.7 | 1200 | 1200 |
Weighted rating | 1123 | 1103.7 | 1200 | |
Weighted performance | 0 | 0 | 0 | |
K-factor | 36 | 36 | 36 | 36 |
Floor | 700 | 700 | 700 | 700 |
Max/Min rating change allowed | 184.4 | 189.4 | 165.8 | 165.8 |
Games | 0 | 0 | 0 | 0 |
Score | 0 | 0 | 0 | 0 |
Expected score | 0 | 0 | 0 | 0 |
Score-Expected | 0 | 0 | 0 | 0 |
Temp raw +/- | 0 | 0 | 0 | 0 |
Final raw +/- | 0 | 0 | 0 | 0 |
New raw rating | 1125.3 | 1106.7 | 1200 | 1200 |
New weighted rating | 1123.3 | 1104.1 | 1200 | 1200 |
New weighted performance | 0 | 0 | 0 | 0 |
Temp new rating | 1125.3 | 1106.7 | 1200 | 1200 |
Temp new rating +/- | 0 | 0 | 0 | 0 |
Final new rating +/- | 0 | 0 | 0 | 0 |
New rating | 1125.3 | 1106.7 | 1200 | 1200 |
New K-factor | 36 | 36 | 36 | 36 |
New floor | 700 | 700 | 700 | 700 |
Item | Main | Standard | Rapid | Blitz |
---|---|---|---|---|
0 | 0 | 0 | 0 | |
0 | 0 | 0 | 0 | |
0 | 0 | 0 | 0 | |
11 | 11 | 0 | 0 | |
0 | 0 | 0 | 0 | |
0 | 0 | 0 | 0 | |
History | 11 | 11 | 0 | 0 |
Games since | |||||||||||||||||
Main6 | Standard6 | Rapid0 | Blitz0 | ||||||||||||||
Gender | Male | ||||||||||||||||
Age group | Adult | ||||||||||||||||
Region | ZF Mgcawu (NZF) | ||||||||||||||||
Province | Northern Cape (NC) | ||||||||||||||||
Main | RSA | Province | Region | ||||||||||||||
Overall | -1 | -1 | -1 | ||||||||||||||
Male | -1 | -1 | -1 | ||||||||||||||
Adult | -1 | -1 | -1 | ||||||||||||||
Adult Male | -1 | -1 | -1 | ||||||||||||||
Standard | RSA | Province | Region | ||||||||||||||
Overall | -1 | -1 | -1 | ||||||||||||||
Male | -1 | -1 | -1 | ||||||||||||||
Adult | -1 | -1 | -1 | ||||||||||||||
Adult Male | -1 | -1 | -1 | ||||||||||||||
Rapid | RSA | Province | Region | ||||||||||||||
Overall | -1 | -1 | -1 | ||||||||||||||
Male | -1 | -1 | -1 | ||||||||||||||
Adult | -1 | -1 | -1 | ||||||||||||||
Adult Male | -1 | -1 | -1 | ||||||||||||||
Blitz | RSA | Province | Region | ||||||||||||||
Overall | -1 | -1 | -1 | ||||||||||||||
Male | -1 | -1 | -1 | ||||||||||||||
Adult | -1 | -1 | -1 | ||||||||||||||
Adult Male | -1 | -1 | -1 |
Games | Score | % | Dp | AvgOpp | Performance | |
Main | 0 | 0 | 0 | 0 | 0 | 0 |
Standard | 0 | 0 | 0 | 0 | 0 | 0 |
Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
Games | Score | % | Dp | AvgOpp | Performance | |
Main | 0 | 0 | 0 | 0 | 0 | 0 |
Standard | 0 | 0 | 0 | 0 | 0 | 0 |
Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
History | ||||||
Games | Score | % | Dp | AvgOpp | Performance | |
Main | 11 | 3 | 27.27 | -193.2 | 1192.9 | 999.7 |
Standard | 11 | 3 | 27.27 | -193.2 | 1192.9 | 999.7 |
Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
Date | Main | Standard | Rapid | Blitz |
2025-09-30 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-09-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-08-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-07-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-06-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-05-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-04-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-03-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-02-01 | 1125.3 | 1106.7 | 1200 | 1200 |
2025-01-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-12-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-11-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-10-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-09-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-08-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-07-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-06-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-08-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-04-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-03-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-02-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2024-01-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2023-12-01 | 1119.4 | 1099.2 | 1200 | 1200 |
2023-11-01 | 1119.4 | 1099.2 | 1200 | 1200 |
Comming soon.
Tournaments
# | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
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# | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
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Last 500 tournaments since 01 January 2018
# | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
---|---|---|---|---|---|---|---|---|---|---|
1 | Paarl Boys High Chess Festival 2023 (2nd Division) | 2023-10-13 | 2023-10-14 | Standard | Cape Winelands (WCW) | 6 | 6 | 1 | Yes | Analysis |
2 | Grey College Team Championship 2023 (B) | 2023-02-03 | 2023-02-04 | Standard | Mangaung (FMB) | 5 | 5 | 2 | Yes | Analysis |
Top 3 Streaks
# | Games | Start | End | ||||||
---|---|---|---|---|---|---|---|---|---|
1 | 3 | TournamentGrey College Team Championship 2023 | TournamentPaarl Boys High Chess Festival 2023 | ||||||
date2023-02-04 | rnd4 | typeStandard | result1 | date2023-10-13 | rnd1 | typeStandard | result1 | ||
OpponentMopedi, K (Karabo) | OpponentSteyn, D (De La Rey) |
# | Games | Start | End | ||||||
---|---|---|---|---|---|---|---|---|---|
1 | 3 | TournamentGrey College Team Championship 2023 | TournamentPaarl Boys High Chess Festival 2023 | ||||||
date2023-02-04 | rnd4 | typeStandard | result1 | date2023-10-13 | rnd1 | typeStandard | result1 | ||
OpponentMopedi, K (Karabo) | OpponentSteyn, D (De La Rey) |
# | Games | Start | End |
---|
# | Games | Start | End |
---|
# | Games | Start | End | ||||||
---|---|---|---|---|---|---|---|---|---|
1 | 3 | TournamentGrey College Team Championship 2023 | TournamentPaarl Boys High Chess Festival 2023 | ||||||
date2023-02-04 | rnd4 | typeStandard | result1 | date2023-10-13 | rnd1 | typeStandard | result1 | ||
OpponentMopedi, K (Karabo) | OpponentSteyn, D (De La Rey) |
# | Games | Start | End | ||||||
---|---|---|---|---|---|---|---|---|---|
1 | 3 | TournamentGrey College Team Championship 2023 | TournamentPaarl Boys High Chess Festival 2023 | ||||||
date2023-02-04 | rnd4 | typeStandard | result1 | date2023-10-13 | rnd1 | typeStandard | result1 | ||
OpponentMopedi, K (Karabo) | OpponentSteyn, D (De La Rey) |
# | Games | Start | End |
---|
# | Games | Start | End |
---|
Top 10 opponents most often played
# | Opponent | Main | Standard | Rapid | Blitz | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
1 | Mafela ,T (Tshiamo) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
2 | Plaat ,M (Meldriego) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1103.7 | 678.7 | 1084.8 | 678.7 | 0 | 0 | 0 | 0 | ||||||
3 | Seboa ,A (Ayaan) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
4 | Molotsi ,K (Kopano) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
5 | Steyn ,D (De La Rey) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
1299.6 | 1724.6 | 1302 | 1724.6 | 0 | 0 | 0 | 0 | ||||||
6 | Mopedi ,K (Karabo) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
7 | Msuku ,K (Kyle) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1178.4 | 753.4 | 1200 | 753.4 | 0 | 0 | 0 | 0 | ||||||
8 | Share ,C (Charles) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1166.8 | 741.8 | 1160 | 741.8 | 0 | 0 | 0 | 0 | ||||||
9 | Van Wyk ,M (Malienke) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1139.2 | 714.2 | 1102.4 | 714.2 | 0 | 0 | 0 | 0 | ||||||
10 | Windvogel ,A (Adrianno) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
1180.4 | 755.4 | 1105.6 | 755.4 | 0 | 0 | 0 | 0 |
Norms
# | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
---|---|---|---|---|---|---|---|---|