🇭🇰 CHENG Aaron Shiu Cheong · HONG KONG CHINA
83rank
-30.0Butler · 30 bds
-1.00per board
±4.7swing
-0.87vs par /bd
-0.43adjusted /bd
by round
Strength of schedule: opponents averaged +0.57/bd (a tough draw) → opponent-adjusted -0.43/bd
Bidding activity — not a pass: 35.2% (31/88)
vs par by strain: NT +1.57 (7) · a suit -1.61 (23)
vs par by level: part-score -2.67 (12) · game +0.35 (17) · slam +0.00 (1)
By role: declaring -1.36/bd (-2.92 vs par · 13) · defending -0.72/bd (+0.71 vs par · 17)
By vulnerability: vulnerable -0.97/bd (-2.00 vs par · 15) · not vulnerable -1.03/bd (+0.27 vs par · 15)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 16 | S.Chan | E.Rodwell – B.Levin | Open | 15 | -9.8 | -0.65 | -0.13 |
| Round of 16 | S.Chan | M.Rosenberg – Z.Mahmood | Open | 15 | -20.2 | -1.35 | -1.60 |
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 |
|---|---|---|---|---|---|---|---|
| +10.1 | Round of 16 | 🇺🇸 U.S.A. | 10 | 6♠ | = | +0 | |
| +5.7 | Round of 16 | 🇺🇸 U.S.A. | 19 | 4♠ | -1 | +10 | |
| +4.3 | Round of 16 | 🇺🇸 U.S.A. | 25 | 3NTx | = | +4 | |
| +3.5 | Round of 16 | 🇺🇸 U.S.A. | 6 | 3♥ | -1 | +1 | |
| +3.0 | Round of 16 | 🇺🇸 U.S.A. | 3 | 5♣ | -2 | +5 | |
| +2.7 | Round of 16 | 🇺🇸 U.S.A. | 24 | 4♠ | -1 | +4 | |
| +2.3 | Round of 16 | 🇺🇸 U.S.A. | 30 | 1NT | +3 | +7 | |
| +2.2 | Round of 16 | 🇺🇸 U.S.A. | 12 | 4♠ | -1 | +6 | |
| +1.5 | Round of 16 | 🇺🇸 U.S.A. | 4 | 5♦x | -1 | +0 | |
| +0.7 | Round of 16 | 🇺🇸 U.S.A. | 18 | 4♥ | +1 | -11 | |
| +0.5 | Round of 16 | 🇺🇸 U.S.A. | 2 | 3NT | = | +1 | |
| +0.5 | Round of 16 | 🇺🇸 U.S.A. | 7 | 2♠ | +1 | +0 | |
| +0.3 | Round of 16 | 🇺🇸 U.S.A. | 21 | 4♥x | -3 | +14 | |
| -0.0 | Round of 16 | 🇺🇸 U.S.A. | 8 | 4♠ | +1 | +0 | |
| -0.3 | Round of 16 | 🇺🇸 U.S.A. | 16 | 3NT | +3 | +10 | |
| -0.3 | Round of 16 | 🇺🇸 U.S.A. | 28 | 5♦ | = | -3 | |
| -0.5 | Round of 16 | 🇺🇸 U.S.A. | 15 | 1♠ | +2 | +10 | |
| -1.5 | Round of 16 | 🇺🇸 U.S.A. | 27 | 3♦ | -2 | -9 | |
| -1.8 | Round of 16 | 🇺🇸 U.S.A. | 5 | 3NT | +1 | +0 | |
| -2.4 | Round of 16 | 🇺🇸 U.S.A. | 23 | 2♠ | +2 | -1 | |
| -2.5 | Round of 16 | 🇺🇸 U.S.A. | 1 | 3♣ | -4 | +5 | |
| -2.5 | Round of 16 | 🇺🇸 U.S.A. | 13 | 3NT | +3 | -1 | |
| -2.5 | Round of 16 | 🇺🇸 U.S.A. | 17 | 2♠ | = | -6 | |
| -3.4 | Round of 16 | 🇺🇸 U.S.A. | 14 | 2♠ | = | -5 | |
| -3.7 | Round of 16 | 🇺🇸 U.S.A. | 20 | 5♠ | -2 | -8 | |
| -6.3 | Round of 16 | 🇺🇸 U.S.A. | 26 | 3NT | = | -10 | |
| -7.3 | Round of 16 | 🇺🇸 U.S.A. | 22 | 3♦ | +2 | -10 | |
| -8.7 | Round of 16 | 🇺🇸 U.S.A. | 9 | 3♠x | -2 | -15 | |
| -11.7 | Round of 16 | 🇺🇸 U.S.A. | 11 | 3♣x | -4 | -9 | |
| -11.9 | Round of 16 | 🇺🇸 U.S.A. | 29 | 4♥x | -2 | -15 |