CHEN Andrew · USS UNSINKABLE
vs par split: bidding -0.36 · play +1.03
Strength of schedule: opponents averaged -0.69/bd (an easy draw) → opponent-adjusted +2.20/bd
Card play — on target: opening leads 87.5% #16 of 46 · declarer play 63.6% #22 of 46 · defence 87.5% #11 of 46
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (2) | 83.3% (6) |
| Declarer play | 50.0% (4) | 71.4% (7) |
| Defence | 50.0% (2) | 92.9% (14) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 100.0% (2) · ♣ 75.0% (4)
vs par by strain: NT -3.29 (7) · a suit +1.62 (29)
vs par by level: part-score +0.56 (9) · game +0.75 (24) · slam +0.33 (3)
By role: declaring +4.12/bd (-2.05 vs par · 20) · defending +1.35/bd (+4.06 vs par · 16)
By vulnerability: vulnerable +2.91/bd (+1.06 vs par · 16) · not vulnerable +2.87/bd (+0.35 vs par · 20)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | B.Zhang | I.Bernal – D.Bernal | Open | 9 | +58.5 | +6.50 | +2.00 |
| Round 2 | B.Zhang | BHATT ANSHUL – D.Li | Open | 9 | +28.4 | +3.16 | +4.44 |
| Round 4 | B.Zhang | A.Bukat – J.Trojak | Open | 9 | +15.3 | +1.70 | -1.67 |
| Round 5 | B.Zhang | F.Stezala – J.Michalski | Open | 9 | +1.7 | +0.19 | -2.11 |
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 |
|---|---|---|---|---|---|---|---|
| +10.9 | Round 1 | ECUADOR | 7 | 6♠ | ♥7 | = | +1 |
| +10.1 | Round 2 | BLITZ | 14 | 6♠ | ♥3 | = | +0 |
| +9.2 | Round 1 | ECUADOR | 3 | 5♦ | ♠Q | = | -5 |
| +9.2 | Round 1 | ECUADOR | 5 | 6♥ | ♠A | = | +0 |
| +9.0 | Round 1 | ECUADOR | 8 | 4♥ | ♦9 | -1 | +10 |
| +6.8 | Round 2 | BLITZ | 18 | 5♦x | ♥A | -2 | +5 |
| +6.2 | Round 5 | CKIS SKAWINA U12 | 12 | 4♥ | ♦Q | +1 | -8 |
| +5.9 | Round 4 | CKIS SKAWINA U15 | 2 | 4♥ | ♠3 | -4 | +8 |
| +5.8 | Round 1 | ECUADOR | 1 | 4♥ | ♦6 | +1 | +0 |
| +5.4 | Round 4 | CKIS SKAWINA U15 | 3 | 3NT | ♣A | = | +0 |
| +4.9 | Round 2 | BLITZ | 15 | 4♥ | ♦A | -3 | +11 |
| +4.8 | Round 1 | ECUADOR | 4 | 3NT | ♣7 | +2 | +1 |
| +4.8 | Round 4 | CKIS SKAWINA U15 | 5 | 4♥ | ♥6 | +1 | +1 |
| +4.1 | Round 1 | ECUADOR | 2 | 4♥ | ♣5 | +2 | +2 |
| +4.1 | Round 2 | BLITZ | 12 | 2♥ | ♠3 | +1 | +1 |
| +4.0 | Round 2 | BLITZ | 16 | 5♣ | ♠2 | -1 | +13 |
| +3.7 | Round 4 | CKIS SKAWINA U15 | 1 | 4♠ | ♣K | +2 | -14 |
| +3.2 | Round 2 | BLITZ | 19 | 2♥ | ♣J | +1 | +6 |
| +2.9 | Round 5 | CKIS SKAWINA U12 | 13 | 4♣ | ♥3 | = | +0 |
| +2.8 | Round 1 | ECUADOR | 9 | 2NT | ♦3 | -4 | +2 |
| +2.7 | Round 1 | ECUADOR | 6 | 4♦ | ♥Q | = | +7 |
| +2.7 | Round 5 | CKIS SKAWINA U12 | 17 | 3NT | ♣4 | +1 | +1 |
| +2.6 | Round 4 | CKIS SKAWINA U15 | 9 | 4♠ | ♣5 | -1 | +6 |
| +1.0 | Round 2 | BLITZ | 17 | 4♠ | ♦3 | -1 | +10 |
| +0.9 | Round 5 | CKIS SKAWINA U12 | 11 | 1NT | ♥4 | +1 | -7 |
| +0.6 | Round 4 | CKIS SKAWINA U15 | 8 | 3♥ | ♠Q | -1 | -3 |
| +0.3 | Round 2 | BLITZ | 11 | 4♠ | ♣3 | = | +0 |
| +0.3 | Round 5 | CKIS SKAWINA U12 | 19 | 4♠ | ♣Q | +2 | +11 |
| +0.2 | Round 4 | CKIS SKAWINA U15 | 4 | 3NT | ♠J | +2 | -13 |
| +0.1 | Round 5 | CKIS SKAWINA U12 | 14 | 2♥ | ♦A | +1 | +6 |
| -0.0 | Round 5 | CKIS SKAWINA U12 | 15 | 3♥ | ♦7 | = | -7 |
| -0.6 | Round 4 | CKIS SKAWINA U15 | 7 | 4♥ | ♦K | +1 | +0 |
| -4.2 | Round 5 | CKIS SKAWINA U12 | 18 | 4♠ | ♣8 | = | -8 |
| -6.0 | Round 2 | BLITZ | 13 | 4♥ | ♦9 | -1 | -6 |
| -7.2 | Round 5 | CKIS SKAWINA U12 | 16 | 3NT | ♣4 | +1 | -7 |
| -7.3 | Round 4 | CKIS SKAWINA U15 | 6 | 4♥ | ♣6 | = | +0 |