PLAYER PAGE
William Etsala-Kourou
1170315599Eden (WEG)Personal
Main rating
| Rating | 1406.2 |
| K-factor | 32 |
| Floor | 906.2 |
| Highest | 1406.2 (2026-04-01) |
| Min/Max +/- allowed | 124 |
| Rating Change () | |
| Games | 5 |
| Score | 2 |
| We | 2.73 |
| SWe | -0.61 |
| Temp +/- | -19.5 |
| Penalties | 0 |
| Weight perform | 1364.7 |
| Final +/- | -19.5 |
| New Rating () | |
| Rating | 1386.7 |
| K-factor | 32 |
| Floor | 906.2 |
| Highest | 1406.2 (2026-04-01) |
| Min/Max +/- allowed | 123.6 |
Standard rating
| Rating | 1378.4 |
| K-factor | 36 |
| Floor | 878.4 |
| Highest | 1378.4 (2026-03-01) |
| Min/Max +/- allowed | 128.6 |
| Rating Change () | |
| Games | 5 |
| Score | 2 |
| We | 2.55 |
| SWe | -0.55 |
| Temp +/- | -19.9 |
| Penalties | 0 |
| Weight perform | 1345.4 |
| Final +/- | -19.9 |
| New Rating () | |
| Rating | 1358.5 |
| K-factor | 36 |
| Floor | 878.4 |
| Highest | 1378.4 (2026-03-01) |
| Min/Max +/- allowed | 128.6 |
Rapid rating
| Rating | 1257 |
| K-factor | 36 |
| Floor | 757 |
| Highest | 1257 (2026-04-01) |
| Min/Max +/- allowed | 152.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1257 |
| K-factor | 36 |
| Floor | 757 |
| Highest | 1257 (2026-04-01) |
| Min/Max +/- allowed | 152.9 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Eden Chess Trials 2 2026 (U10 Boys) | Standard | 2026-05-23 | 2026-05-23 | Eden (WEG) | 5 | 1406.2 | 5 | 2 | 1288.4 | -19.5 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Eden Rapid Championship 2026 (C) | Rapid | 2026-04-18 | 2026-04-18 | Eden (WEG) | 6 | 1352.7 | 6 | 4 | 1568 | 32.9 | Details |
| 2 | Eden Schools Trials 1 2026 (U9 Boys) | Standard | 2026-03-14 | 2026-03-14 | Eden (WEG) | 5 | 1272.4 | 5 | 3 | 1423.1 | 25.1 | Details |
| 3 | Oudussa Trials 2 2026 (U7+U9) | Standard | 2026-02-28 | 2026-02-28 | Eden (WEG) | 5 | 1272.4 | 5 | 4 | 1504.8 | 42.1 | Details |
| 4 | Loerie Skaaktoernooi 2026 (U11+U13) | Rapid | 2026-02-21 | 2026-02-21 | Eden (WEG) | 5 | 1248.2 | 5 | 2 | 1184 | -3.9 | Details |
| 5 | Oudussa Trials 1 2026 (U7+U9) | Standard | 2026-02-14 | 2026-02-14 | Eden (WEG) | 5 | 1248.2 | 5 | 4 | 1432.6 | 17.4 | Details |
| 6 | Eden Top Schools 2025 (U9) | Standard | 2025-08-16 | 2025-08-16 | Eden (WEG) | 5 | 1265.8 | 4 | 1 | 1141.7 | -9.8 | Details |
| 7 | Eden Chess Trials 2 2025 (U10) | Standard | 2025-03-15 | 2025-04-12 | Eden (WEG) | 10 | 1198 | 10 | 6 | 1372.5 | 33.9 | Details |
| 8 | Eden Schools Chess Trials 1 2025 (U9 Boys) | Standard | 2025-03-08 | 2025-03-08 | Eden (WEG) | 5 | 1196 | 5 | 2.5 | 1193.9 | -0.8 | Details |
| 9 | Oudussa Trials 2025 (U7+U9) | Standard | 2025-03-01 | 2025-03-01 | Eden (WEG) | 5 | 1196 | 5 | 2 | 1121.7 | -8 | Details |
| 10 | Eden Rapid 2025 (B) | Rapid | 2025-02-23 | 2025-02-23 | Eden (WEG) | 6 | 1200 | 5 | 0 | 949.1 | -17.4 | Details |
| 11 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Standard | 2025-02-08 | 2025-02-08 | Eden (WEG) | 5 | 1200 | 5 | 2 | 1115 | -7.6 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 31 |
| Wins | 18 |
| Draws | 2 |
| Losses | 11 |
| White | 17 |
| Black | 14 |
| White wins | 11 |
| Black wins | 7 |
| Score | 19 |
| Percent | 61.3 |
| Dp | 96 |
| AOR | 1309.6 |
| Performance | 1405.6 |
Game statistics (History)
| Games | 65 |
| Wins | 30 |
| Draws | 5 |
| Losses | 30 |
| White | 34 |
| Black | 31 |
| White wins | 17 |
| Black wins | 13 |
| Score | 32.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1288.7 |
| Performance | 1288.7 |
Rankings (Main)
| National | |
| Overall | 3464 |
| Gender | 2927 |
| Age group | 128 |
| Gender/Age | 102 |
| Provincial | |
| Overall | 1059 |
| Gender | 853 |
| Age group | 47 |
| Gender/Age | 36 |
| Regional | |
| Overall | 239 |
| Gender | 185 |
| Age group | 21 |
| Gender/Age | 15 |
Rankings (Standard)
| National | |
| Overall | 3627 |
| Gender | 3017 |
| Age group | 143 |
| Gender/Age | 112 |
| Provincial | |
| Overall | 1066 |
| Gender | 838 |
| Age group | 50 |
| Gender/Age | 39 |
| Regional | |
| Overall | 252 |
| Gender | 192 |
| Age group | 24 |
| Gender/Age | 18 |
Rankings (Rapid)
| National | |
| Overall | 2918 |
| Gender | 2366 |
| Age group | 144 |
| Gender/Age | 112 |
| Provincial | |
| Overall | 1172 |
| Gender | 929 |
| Age group | 78 |
| Gender/Age | 63 |
| Regional | |
| Overall | 136 |
| Gender | 111 |
| Age group | 15 |
| Gender/Age | 11 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 31 |
| Score | 19 |
| Percent | 61.3 |
| Aor | 1309.6 |
| Dp | 96 |
| Prat | 1405.6 |
Performance (12 months)
| Games | 35 |
| Score | 20 |
| Percent | 57.1 |
| Aor | 1314.7 |
| Dp | 60.7 |
| Prat | 1375.4 |
Performance (History)
| Games | 65 |
| Score | 32.5 |
| Percent | 50 |
| Aor | 1288.7 |
| Dp | 0 |
| Prat | 1288.7 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Suka, L (Liyema) | 3 | 1 | 2 | Oudussa Trials 2025 (U7+U9) | Oudussa Trials 2 2026 (U7+U9) | Details |
| Overall | 2 | Owen, A (Aliandro) | 2 | 1 | 1 | Oudussa Trials 2 2026 (U7+U9) | Eden Schools Trials 1 2026 (U9 Boys) | Details |
| Overall | 3 | Kamfer, A (Austin) | 2 | 1 | 1 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Oudussa Trials 2025 (U7+U9) | Details |
| Overall | 4 | Saterdag, P (Peter-Junior) | 2 | 1 | 1 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Oudussa Trials 2025 (U7+U9) | Details |
| Overall | 5 | Jacobs, S (Stefiano) | 2 | 2 | 0 | Oudussa Trials 1 2026 (U7+U9) | Eden Schools Trials 1 2026 (U9 Boys) | Details |
| Standard | 1 | Suka, L (Liyema) | 3 | 1 | 2 | Oudussa Trials 2025 (U7+U9) | Oudussa Trials 2 2026 (U7+U9) | Details |
| Standard | 2 | Baartman, S (Schuyler Rayshaan) | 2 | 1 | 1 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Oudussa Trials 2025 (U7+U9) | Details |
| Standard | 3 | Owen, A (Aliandro) | 2 | 1 | 1 | Oudussa Trials 2 2026 (U7+U9) | Eden Schools Trials 1 2026 (U9 Boys) | Details |
| Standard | 4 | Codier, A (Aidan) | 2 | 2 | 0 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Eden Schools Chess Trials 1 2025 (U9 Boys) | Details |
| Standard | 5 | Galant, H (Hopelin) | 2 | 2 | 0 | Eden Chess Trials 2 2025 (U10) | Eden Top Schools 2025 (U9) | Details |