PLAYER PAGE
William Etsala-Kourou
1170315599Eden (WEG)Personal
Main rating
| Rating | 1386.7 |
| K-factor | 32 |
| Floor | 906.2 |
| Highest | 1406.2 (2026-04-01) |
| Min/Max +/- allowed | 124 |
| Rating Change () | |
| Games | 13 |
| Score | 3 |
| We | 6.89 |
| SWe | -1.51 |
| Temp +/- | -48.3 |
| Penalties | 0 |
| Weight perform | 1161.2 |
| Final +/- | -48.3 |
| New Rating () | |
| Rating | 1338.4 |
| K-factor | 32 |
| Floor | 906.2 |
| Highest | 1406.2 (2026-04-01) |
| Min/Max +/- allowed | 123.6 |
Standard rating
| Rating | 1358.5 |
| K-factor | 36 |
| Floor | 878.4 |
| Highest | 1378.4 (2026-03-01) |
| Min/Max +/- allowed | 128.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1327.3 |
| Final +/- | 0 |
| 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 | 13 |
| Score | 3 |
| We | 6.84 |
| SWe | -3.84 |
| Temp +/- | -138.3 |
| Penalties | 0 |
| Weight perform | 1166.8 |
| Final +/- | -138.3 |
| New Rating () | |
| Rating | 1118.8 |
| 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 | Wayne Paul Williams Open 2026 | Rapid | 2026-07-25 | 2026-07-25 | Eden (WEG) | 6 | 1386.7 | 6 | 2 | 1099.8 | -21.4 | Details |
| 2 | Mandela Day Open 2026 | Rapid | 2026-07-18 | 2026-07-18 | Eden (WEG) | 7 | 1386.7 | 7 | 1 | 1090.1 | -27 | Details |
| # | 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 |
| 2 | Eden Rapid Championship 2026 (C) | Rapid | 2026-04-18 | 2026-04-18 | Eden (WEG) | 6 | 1352.7 | 6 | 4 | 1568 | 32.9 | Details |
| 3 | 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 |
| 4 | 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 |
| 5 | Loerie Skaaktoernooi 2026 (U11+U13) | Rapid | 2026-02-21 | 2026-02-21 | Eden (WEG) | 5 | 1248.2 | 5 | 2 | 1184 | -3.9 | Details |
| 6 | 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 |
| 7 | Eden Top Schools 2025 (U9) | Standard | 2025-08-16 | 2025-08-16 | Eden (WEG) | 5 | 1265.8 | 4 | 1 | 1141.7 | -9.8 | Details |
| 8 | Eden Chess Trials 2 2025 (U10) | Standard | 2025-03-15 | 2025-04-12 | Eden (WEG) | 10 | 1198 | 10 | 6 | 1372.5 | 33.9 | Details |
| 9 | 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 |
| 10 | Oudussa Trials 2025 (U7+U9) | Standard | 2025-03-01 | 2025-03-01 | Eden (WEG) | 5 | 1196 | 5 | 2 | 1121.7 | -8 | Details |
| 11 | Eden Rapid 2025 (B) | Rapid | 2025-02-23 | 2025-02-23 | Eden (WEG) | 6 | 1200 | 5 | 0 | 949.1 | -17.4 | Details |
| 12 | 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 | 13 |
| Wins | 3 |
| Draws | 0 |
| Losses | 10 |
| White | 7 |
| Black | 6 |
| White wins | 3 |
| Black wins | 0 |
| Score | 3 |
| Percent | 23.1 |
| Dp | -228.8 |
| AOR | 1323.5 |
| Performance | 1094.6 |
Game statistics ()
| Games | 44 |
| Wins | 21 |
| Draws | 2 |
| Losses | 21 |
| White | 24 |
| Black | 20 |
| White wins | 14 |
| Black wins | 7 |
| Score | 22 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1313.7 |
| Performance | 1313.7 |
Game statistics (History)
| Games | 78 |
| Wins | 33 |
| Draws | 5 |
| Losses | 40 |
| White | 41 |
| Black | 37 |
| White wins | 20 |
| Black wins | 13 |
| Score | 35.5 |
| Percent | 45.5 |
| Dp | -38.1 |
| AOR | 1294.5 |
| Performance | 1256.3 |
Rankings (Main)
| National | |
| Overall | 3933 |
| Gender | 3315 |
| Age group | 159 |
| Gender/Age | 127 |
| Provincial | |
| Overall | 1218 |
| Gender | 985 |
| Age group | 61 |
| Gender/Age | 48 |
| Regional | |
| Overall | 281 |
| Gender | 218 |
| Age group | 23 |
| Gender/Age | 16 |
Rankings (Standard)
| National | |
| Overall | 4129 |
| Gender | 3421 |
| Age group | 181 |
| Gender/Age | 143 |
| Provincial | |
| Overall | 1220 |
| Gender | 957 |
| Age group | 68 |
| Gender/Age | 52 |
| Regional | |
| Overall | 310 |
| Gender | 234 |
| Age group | 32 |
| Gender/Age | 23 |
Rankings (Rapid)
| National | |
| Overall | 2951 |
| Gender | 2390 |
| Age group | 165 |
| Gender/Age | 131 |
| Provincial | |
| Overall | 1170 |
| Gender | 930 |
| Age group | 85 |
| Gender/Age | 71 |
| Regional | |
| Overall | 129 |
| Gender | 105 |
| 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 | 13 |
| Score | 3 |
| Percent | 23.1 |
| Aor | 1323.5 |
| Dp | -228.8 |
| Prat | 1094.6 |
Performance ()
| Games | 44 |
| Score | 22 |
| Percent | 50 |
| Aor | 1313.7 |
| Dp | 0 |
| Prat | 1313.7 |
Performance (12 months)
| Games | 48 |
| Score | 23 |
| Percent | 47.9 |
| Aor | 1317.1 |
| Dp | -17.7 |
| Prat | 1299.4 |
Performance (History)
| Games | 78 |
| Score | 35.5 |
| Percent | 45.5 |
| Aor | 1294.5 |
| Dp | -38.1 |
| Prat | 1256.3 |
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 | Van Der Merwe, F (Finley) | 2 | 0 | 2 | Eden Top Schools 2025 (U9) | Eden Chess Trials 2 2026 (U10 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 | Fredericks, A (Aquila) | 2 | 2 | 0 | Oudussa Trials 1 2026 (U7+U9) | Eden Chess Trials 2 2026 (U10 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 | Fredericks, A (Aquila) | 2 | 2 | 0 | Oudussa Trials 1 2026 (U7+U9) | Eden Chess Trials 2 2026 (U10 Boys) | Details |
| Standard | 4 | Saterdag, P (Peter-Junior) | 2 | 1 | 1 | Oudussa Trials 2 2025 (U7+U9 Boys+Girls) | Oudussa Trials 2025 (U7+U9) | Details |
| Standard | 5 | Galant, H (Hopelin) | 2 | 2 | 0 | Eden Chess Trials 2 2025 (U10) | Eden Top Schools 2025 (U9) | Details |