JIANG Yixuan · SX MERCURY
vs par split: bidding +0.04 · play +0.53
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.13/bd
Card play — on target: opening leads 73.7% #22 of 51 · declarer play 70.0% #38 of 51 · defence 84.8% #19 of 51
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (4) | 80.0% (15) |
| Declarer play | 80.0% (5) | 60.0% (5) |
| Defence | 55.6% (9) | 95.8% (24) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 83.3% (6) · ♦ 33.3% (3) · ♣ 80.0% (5)
vs par by strain: NT -1.06 (16) · a suit +1.36 (33)
vs par by level: part-score +1.28 (18) · game +0.20 (25) · slam +0.00 (6)
By role: declaring -0.74/bd (-2.75 vs par · 16) · defending +0.59/bd (+2.21 vs par · 34)
By vulnerability: vulnerable +0.39/bd (+1.08 vs par · 24) · not vulnerable -0.04/bd (+0.19 vs par · 26)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Q.Tang | Y.Chen – S.Ma | Open | 10 | +18.4 | +1.84 | +3.70 |
| Round 2 | Q.Tang | W.Yu – F.Yang | Open | 10 | -7.1 | -0.71 | -0.30 |
| Round 5 | Q.Tang | D.Ocylok – J.Kokot | Closed | 10 | -11.2 | -1.12 | -2.60 |
| Round 7 | Q.Tang | P.Wang – Y.Zhao | Open | 10 | +7.3 | +0.73 | +2.80 |
| Round 9 | Q.Tang | A.Dhir – M.Weingarten | Closed | 10 | +1.0 | +0.10 | -0.50 |
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 |
|---|---|---|---|---|---|---|---|
| +13.3 | Round 1 | SX NEBULA | 4 | 4♠ | ♣4 | -3 | +16 |
| +13.0 | Round 9 | USA | 12 | 5♦ | ♣A | +1 | +13 |
| +10.7 | Round 9 | USA | 16 | 5♥x | ♠A | +1 | +6 |
| +9.1 | Round 7 | SX SATURN | 18 | 3♥x | ♣3 | -3 | +8 |
| +8.3 | Round 1 | SX NEBULA | 8 | 6♥x | ♠2 | -2 | +12 |
| +7.1 | Round 1 | SX NEBULA | 6 | 3NT | ♣8 | +1 | +0 |
| +6.3 | Round 7 | SX SATURN | 16 | 6♠ | ♥Q | +1 | +11 |
| +5.9 | Round 2 | SX MARS | 19 | 4♠ | ♦A | -1 | +12 |
| +5.3 | Round 1 | SX NEBULA | 7 | 3NT | ♠5 | = | +0 |
| +5.1 | Round 5 | POLAND | 22 | 3♠ | ♥4 | -2 | +6 |
| +5.1 | Round 5 | POLAND | 26 | 2♠ | ♣3 | -1 | +6 |
| +4.6 | Round 7 | SX SATURN | 17 | 3♥ | ♣J | -2 | +5 |
| +4.3 | Round 2 | SX MARS | 20 | 3♦ | ♥A | -1 | +6 |
| +3.0 | Round 1 | SX NEBULA | 5 | 3♦ | ♥3 | -2 | +7 |
| +3.0 | Round 5 | POLAND | 28 | Pass | +3 | ||
| +2.7 | Round 7 | SX SATURN | 11 | 3♣ | ♥3 | -2 | +6 |
| +2.3 | Round 9 | USA | 20 | 3NT | ♦8 | = | +13 |
| +2.0 | Round 1 | SX NEBULA | 1 | 2NT | ♥4 | = | -1 |
| +1.7 | Round 2 | SX MARS | 12 | 2♦ | ♣A | -3 | +0 |
| +0.0 | Round 2 | SX MARS | 18 | 3NT | ♠Q | +1 | +0 |
| -0.3 | Round 2 | SX MARS | 11 | 1NT | ♠9 | -1 | +2 |
| -0.3 | Round 7 | SX SATURN | 14 | 4♠ | ♦7 | = | +11 |
| -0.4 | Round 5 | POLAND | 25 | 3NT | ♥3 | +2 | -1 |
| -0.4 | Round 9 | USA | 11 | 3NT | ♣3 | = | +1 |
| -0.6 | Round 7 | SX SATURN | 20 | 2♠ | ♣3 | = | -1 |
| -1.3 | Round 7 | SX SATURN | 15 | 3NT | ♦3 | +3 | -2 |
| -1.4 | Round 5 | POLAND | 30 | 4♠ | ♠10 | = | +0 |
| -1.6 | Round 2 | SX MARS | 13 | 4♥ | ♠8 | +1 | +0 |
| -1.6 | Round 9 | USA | 19 | 1NT | ♠A | +1 | +0 |
| -1.7 | Round 5 | POLAND | 23 | 4♠ | ♣5 | -2 | -12 |
| -2.1 | Round 1 | SX NEBULA | 2 | 2♥ | ♦10 | +1 | +0 |
| -2.1 | Round 9 | USA | 17 | 5♣x | ♠K | -1 | -8 |
| -2.3 | Round 1 | SX NEBULA | 3 | 6♠ | ♣A | +1 | +11 |
| -2.4 | Round 5 | POLAND | 27 | 3♣ | ♦6 | = | -6 |
| -2.6 | Round 1 | SX NEBULA | 9 | 4♥x | ♦K | -1 | +5 |
| -2.6 | Round 9 | USA | 14 | 4♠ | ♦9 | -1 | -5 |
| -2.7 | Round 2 | SX MARS | 17 | 3NT | ♠7 | +3 | -2 |
| -3.1 | Round 2 | SX MARS | 15 | 5♥ | ♠A | = | -6 |
| -3.1 | Round 7 | SX SATURN | 12 | 1NT | ♦A | +3 | -2 |
| -4.1 | Round 9 | USA | 18 | 3♠ | ♣Q | = | +0 |
| -4.7 | Round 2 | SX MARS | 14 | 1NT | ♣2 | +1 | -1 |
| -4.9 | Round 5 | POLAND | 21 | 3NT | ♥4 | +3 | -11 |
| -5.0 | Round 7 | SX SATURN | 13 | 6♠ | ♥J | +1 | -8 |
| -5.1 | Round 7 | SX SATURN | 19 | 4♥ | ♥3 | = | +0 |
| -5.9 | Round 9 | USA | 15 | 3♥ | ♠A | +2 | -12 |
| -6.0 | Round 5 | POLAND | 29 | 3NT | ♦7 | +2 | +0 |
| -6.6 | Round 2 | SX MARS | 16 | 4♠ | ♥2 | -1 | -14 |
| -7.6 | Round 5 | POLAND | 24 | 5♥ | ♠7 | +1 | -11 |
| -8.3 | Round 9 | USA | 13 | 6NT | ♥10 | -2 | -13 |
| -13.6 | Round 1 | SX NEBULA | 10 | 6♥ | ♦A | = | -13 |