LIU Yi Qian · CFSC
vs par split: bidding +1.00 · play +0.03
Strength of schedule: opponents averaged -0.47/bd (an easy draw) → opponent-adjusted -0.12/bd
Card play — on target: opening leads 81.2% #195 of 527 · declarer play 73.3% #303 of 527 · defence 100.0% #1 of 527
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 81.8% (11) |
| Declarer play | 80.0% (5) | 70.0% (10) |
| Defence | 100.0% (10) | 100.0% (17) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 66.7% (3) · ♦ 50.0% (2) · ♣ 100.0% (6)
vs par by strain: NT +3.23 (17) · a suit +0.16 (43)
vs par by level: part-score +2.54 (28) · game +0.08 (25) · slam -1.57 (7)
By role: declaring -0.66/bd (-1.36 vs par · 33) · defending +1.60/bd (+3.96 vs par · 27)
By vulnerability: vulnerable -0.03/bd (+0.53 vs par · 30) · not vulnerable +0.75/bd (+1.53 vs par · 30)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Hu | K.Reiter – E.Lund | Open | 10 | -10.5 | -1.05 | -0.90 |
| Round 2 | M.Hu | R.Anderson – K.Anderson | Open | 10 | +31.9 | +3.19 | +4.50 |
| Round 3 | M.Hu | C.Willenken – M.Zur-Campanile | Closed | 10 | +2.0 | +0.20 | +0.10 |
| Round 6 | M.Hu | J.Mahaffey – J.Radin | Closed | 10 | +9.3 | +0.93 | +1.50 |
| Round 7 | M.Hu | I.Savchenko – C.Nell | Open | 10 | -1.3 | -0.13 | -0.10 |
| Round 8 | M.Hu | S.Buchmayr – M.Buchmayr | Open | 10 | -10.0 | -1.00 | +1.10 |
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 |
|---|---|---|---|---|---|---|---|
| +13.0 | Round 2 | DARLING | 12 | 6NT | ♥3 | -4 | +17 |
| +10.0 | Round 8 | MAX | 12 | 4♠ | ♥7 | -1 | +10 |
| +9.5 | Round 6 | MAHAFFEY | 29 | 3♥ | ♣3 | -1 | +12 |
| +9.1 | Round 3 | ROSENTHAL | 22 | 6♣ | ♦A | -1 | +12 |
| +8.3 | Round 2 | DARLING | 15 | 3NT | ♠8 | = | +11 |
| +7.5 | Round 7 | MIAMI HEAT | 8 | 2♠ | ♠4 | = | +11 |
| +6.4 | Round 2 | DARLING | 18 | 4♥ | ♣4 | -1 | -2 |
| +6.4 | Round 2 | DARLING | 19 | 2NT | ♠7 | = | +10 |
| +5.4 | Round 6 | MAHAFFEY | 25 | 4♥ | ♣8 | -1 | +5 |
| +3.9 | Round 1 | LUND | 2 | 3NT | ♠A | -2 | +11 |
| +3.8 | Round 1 | LUND | 6 | 3♥ | ♠A | -5 | +15 |
| +3.6 | Round 6 | MAHAFFEY | 24 | 3NT | ♣7 | +2 | +1 |
| +3.5 | Round 7 | MIAMI HEAT | 10 | 1NT | ♠J | -3 | +4 |
| +3.2 | Round 7 | MIAMI HEAT | 9 | 3♥ | ♠A | = | +0 |
| +3.0 | Round 7 | MIAMI HEAT | 3 | 3♦ | ♣8 | +1 | +0 |
| +2.6 | Round 7 | MIAMI HEAT | 7 | 5♦ | ♠2 | +1 | +1 |
| +2.1 | Round 8 | MAX | 11 | 2♠ | ♥A | -2 | +0 |
| +1.9 | Round 6 | MAHAFFEY | 30 | 3NT | ♠10 | +2 | +1 |
| +1.8 | Round 3 | ROSENTHAL | 27 | 3NT | ♣10 | -1 | +5 |
| +1.8 | Round 8 | MAX | 15 | 2♥ | ♦K | -1 | +4 |
| +1.4 | Round 2 | DARLING | 11 | 4♥ | ♠4 | = | +3 |
| +1.3 | Round 7 | MIAMI HEAT | 2 | 4♣ | ♥6 | -1 | -5 |
| +1.1 | Round 1 | LUND | 8 | 3♣ | ♣9 | +2 | +0 |
| +1.1 | Round 6 | MAHAFFEY | 22 | 2♦ | ♦4 | +2 | +9 |
| +0.9 | Round 2 | DARLING | 16 | 4♦ | ♥A | = | +6 |
| +0.8 | Round 8 | MAX | 17 | 5♠ | ♥4 | = | +0 |
| +0.7 | Round 1 | LUND | 5 | 3♣ | ♦7 | = | +0 |
| +0.6 | Round 6 | MAHAFFEY | 28 | 2♠x | ♣5 | -3 | -3 |
| +0.4 | Round 8 | MAX | 16 | 2NT | ♠A | -3 | +0 |
| +0.2 | Round 2 | DARLING | 14 | 4♠ | ♥A | +1 | +0 |
| +0.1 | Round 1 | LUND | 4 | 3♥ | ♣J | = | +11 |
| +0.1 | Round 2 | DARLING | 20 | 1NT | ♠3 | +1 | +0 |
| -0.1 | Round 3 | ROSENTHAL | 28 | 1NT | ♥9 | = | +0 |
| -0.1 | Round 8 | MAX | 13 | 2♠ | ♠2 | +1 | +12 |
| -0.2 | Round 1 | LUND | 1 | 3NT | ♠8 | +1 | +1 |
| -0.3 | Round 6 | MAHAFFEY | 27 | 1NT | ♥6 | +1 | +0 |
| -0.3 | Round 8 | MAX | 14 | 4♥ | ♣5 | -2 | +1 |
| -0.4 | Round 3 | ROSENTHAL | 30 | 3♥ | ♣K | -1 | -4 |
| -0.6 | Round 1 | LUND | 10 | 4♠ | ♣7 | +1 | -13 |
| -1.1 | Round 3 | ROSENTHAL | 25 | 2NT | ♦6 | = | -7 |
| -1.2 | Round 3 | ROSENTHAL | 21 | 3♣ | ♥A | = | +1 |
| -1.2 | Round 3 | ROSENTHAL | 26 | 1NT | ♠5 | +2 | -1 |
| -1.2 | Round 3 | ROSENTHAL | 29 | 1NT | ♥10 | = | +2 |
| -1.4 | Round 2 | DARLING | 17 | 4♥ | ♣K | +1 | +0 |
| -1.5 | Round 3 | ROSENTHAL | 24 | 3♠ | ♦A | -1 | +2 |
| -2.2 | Round 3 | ROSENTHAL | 23 | 5♠ | ♥8 | +1 | -9 |
| -2.7 | Round 6 | MAHAFFEY | 21 | 4♠ | ♥7 | +2 | +11 |
| -2.9 | Round 6 | MAHAFFEY | 26 | 4♠ | ♦9 | -1 | -12 |
| -3.4 | Round 2 | DARLING | 13 | 6♠ | ♠7 | = | +0 |
| -3.4 | Round 7 | MIAMI HEAT | 6 | 3NT | ♣4 | -2 | +0 |
| -3.5 | Round 7 | MIAMI HEAT | 4 | 4♥ | ♣J | -1 | +1 |
| -3.6 | Round 7 | MIAMI HEAT | 1 | 4♠ | ♦7 | -2 | +0 |
| -3.6 | Round 8 | MAX | 19 | 4♠ | ♥A | = | -3 |
| -3.8 | Round 1 | LUND | 7 | 4♥ | ♣2 | -1 | -12 |
| -5.1 | Round 1 | LUND | 9 | 2♦ | ♠8 | +1 | -8 |
| -6.9 | Round 6 | MAHAFFEY | 23 | 4♠ | ♦3 | = | -9 |
| -9.4 | Round 8 | MAX | 18 | 6♠ | ♦Q | = | +0 |
| -10.4 | Round 1 | LUND | 3 | 6♥ | ♠5 | -1 | -14 |
| -11.7 | Round 8 | MAX | 20 | 6♠ | ♣A | -1 | -13 |
| -11.9 | Round 7 | MIAMI HEAT | 5 | 6♥ | ♣A | -1 | -13 |