CHEUNG Wai Lam · CUHK
vs par split: bidding +0.57 · play +1.00
Strength of schedule: opponents averaged -0.39/bd (an easy draw) → opponent-adjusted -0.11/bd
Card play — on target: opening leads 100.0% #1 of 79 · declarer play 80.0% #33 of 78 · defence 87.5% #22 of 79
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (1) | 100.0% (4) |
| Declarer play | 50.0% (2) | 100.0% (3) |
| Defence | 100.0% (4) | 83.3% (12) |
Opening leads by suit led: ♠ 100.0% (1) · ♦ 100.0% (2) · ♣ 100.0% (2)
vs par by strain: NT +1.33 (9) · a suit +1.67 (21)
vs par by level: part-score +1.53 (15) · game +2.23 (13) · slam -2.50 (2)
By role: declaring +0.66/bd (+0.57 vs par · 14) · defending -0.06/bd (+2.44 vs par · 16)
By vulnerability: vulnerable +1.21/bd (+4.53 vs par · 15) · not vulnerable -0.65/bd (-1.40 vs par · 15)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Wu | K.Stefanec – M.Ferenca | Open | 6 | -5.1 | -0.85 | -0.33 |
| Round 2 | M.Wu | P.Bedouet – E.Vallet | Open | 6 | -1.4 | -0.23 | +0.17 |
| Round 5 | M.Wu | S.Sarkar – T.Rodrigues | Open | 6 | -3.6 | -0.60 | +4.33 |
| Round 7 | M.Wu | L.Draghi – M.Cottone | Closed | 6 | +14.3 | +2.38 | +1.67 |
| Round 8 | M.Wu | J.Cieslinski – M.Jankowski | Open | 6 | +4.1 | +0.68 | +2.00 |
Every board — best Butler first↑ top
vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.
| Butler | Round | Opponents | Bd | Contract | Lead | Res | vs par |
|---|---|---|---|---|---|---|---|
| +9.7 | Round 8 | DABROWKA POZNAN | 14 | 3♠x | ♣A | = | +9 |
| +9.6 | Round 2 | 🇫🇷 FRANCE U22 | 7 | 4♠ | ♣A | -1 | +12 |
| +8.5 | Round 5 | 🇮🇳 INDIA | 29 | 3NT | ♠Q | = | +10 |
| +6.9 | Round 7 | 🇮🇹 ITALY U26 RED | 7 | 6♠ | ♣9 | = | +0 |
| +5.1 | Round 1 | 🇭🇷 CROATIA U26 | 6 | 2♥ | ♣7 | -3 | -3 |
| +4.7 | Round 2 | 🇫🇷 FRANCE U22 | 10 | 4♠ | ♦7 | -1 | +12 |
| +3.7 | Round 7 | 🇮🇹 ITALY U26 RED | 11 | 2NT | ♥6 | = | +1 |
| +3.4 | Round 7 | 🇮🇹 ITALY U26 RED | 9 | 2NT | ♠Q | +2 | +7 |
| +2.7 | Round 8 | DABROWKA POZNAN | 15 | 1NT | ♥9 | +2 | +1 |
| +2.3 | Round 1 | 🇭🇷 CROATIA U26 | 2 | 2♥ | ♦J | +1 | +0 |
| +1.5 | Round 1 | 🇭🇷 CROATIA U26 | 4 | 3♥ | ♥2 | +1 | +7 |
| +1.2 | Round 5 | 🇮🇳 INDIA | 28 | 1NT | ♦5 | = | +1 |
| +1.1 | Round 2 | 🇫🇷 FRANCE U22 | 9 | 4♠ | ♥7 | = | +0 |
| +0.9 | Round 5 | 🇮🇳 INDIA | 27 | 3NT | ♥4 | +1 | +1 |
| +0.9 | Round 7 | 🇮🇹 ITALY U26 RED | 10 | 3♠ | ♣J | = | +6 |
| +0.2 | Round 8 | DABROWKA POZNAN | 18 | 4♥ | ♦J | = | +0 |
| +0.1 | Round 7 | 🇮🇹 ITALY U26 RED | 8 | 1NT | ♠4 | -3 | +0 |
| -0.7 | Round 7 | 🇮🇹 ITALY U26 RED | 12 | 4♥ | ♦K | -1 | -4 |
| -1.0 | Round 5 | 🇮🇳 INDIA | 30 | 1♥ | ♥Q | +2 | +7 |
| -1.5 | Round 8 | DABROWKA POZNAN | 16 | 3NT | ♣5 | = | -3 |
| -1.9 | Round 1 | 🇭🇷 CROATIA U26 | 1 | 4♣ | ♥A | -1 | +2 |
| -1.9 | Round 1 | 🇭🇷 CROATIA U26 | 5 | 3♥ | ♣6 | = | +0 |
| -2.7 | Round 5 | 🇮🇳 INDIA | 26 | 5♣ | ♠K | -1 | +12 |
| -3.2 | Round 8 | DABROWKA POZNAN | 17 | 3♦x | ♦3 | -1 | -8 |
| -3.7 | Round 2 | 🇫🇷 FRANCE U22 | 12 | 3♥ | ♠10 | +1 | -7 |
| -3.8 | Round 8 | DABROWKA POZNAN | 13 | 5♣ | ♠J | = | +13 |
| -5.2 | Round 2 | 🇫🇷 FRANCE U22 | 11 | 3NT | ♦2 | -2 | -6 |
| -7.9 | Round 2 | 🇫🇷 FRANCE U22 | 8 | 4♥ | ♣2 | -1 | -10 |
| -10.2 | Round 1 | 🇭🇷 CROATIA U26 | 3 | 5♣x | ♦K | -3 | -8 |
| -10.5 | Round 5 | 🇮🇳 INDIA | 25 | 6♣x | ♥J | = | -5 |