CHEN Yuan · CANADA MIXED
vs par split: bidding -0.21 · play -0.71
Strength of schedule: opponents averaged +0.16/bd (a tough draw) → opponent-adjusted -0.12/bd
Card play — on target: opening leads 46.2% #358 of 360 · declarer play 56.0% #314 of 360 · defence 77.8% #319 of 360
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 40.0% (5) | 50.0% (8) |
| Declarer play | 40.0% (10) | 66.7% (15) |
| Defence | 100.0% (7) | 70.0% (20) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 0.0% (1) · ♦ 50.0% (4) · ♣ 0.0% (3)
vs par by strain: NT -1.61 (18) · a suit -0.69 (52)
vs par by level: part-score +1.12 (24) · game -2.57 (42) · slam +4.00 (4)
By role: declaring -0.46/bd (-3.05 vs par · 43) · defending +0.01/bd (+2.44 vs par · 27)
By vulnerability: vulnerable -0.44/bd (-2.29 vs par · 34) · not vulnerable -0.12/bd (+0.36 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Z.Hu | H.Fick – R.Stephens | Open | 10 | +1.9 | +0.19 | -1.40 |
| Round 2 | Z.Hu | S.Karmarkar – M.Karmarkar | Closed | 10 | +7.9 | +0.79 | +0.50 |
| Round 3 | Z.Hu | B.Das – P.Bardhan | Open | 10 | +0.3 | +0.03 | +1.10 |
| Round 6 | Z.Hu | N.Bausback – H.Ding | Closed | 10 | -37.5 | -3.75 | -1.70 |
| Round 7 | Z.Hu | M.Meziati – E.Levy | Closed | 10 | +23.5 | +2.35 | +0.50 |
| Round 9 | Z.Hu | N.Sakowska – P.Butryn | Closed | 10 | -4.2 | -0.42 | -2.40 |
| Round 10 | Z.Hu | M.Cole – A.Bianchedi | Open | 10 | -11.4 | -1.14 | -3.10 |
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 |
|---|---|---|---|---|---|---|---|
| +10.8 | Round 3 | INDIAN SENIORS | 18 | 6♠ | ♦8 | -1 | +13 |
| +10.4 | Round 3 | INDIAN SENIORS | 15 | 6♦ | ♠4 | -1 | +13 |
| +10.0 | Round 7 | LARBI | 26 | 1NT | ♥5 | +3 | +9 |
| +8.5 | Round 10 | PORTUCOLE | 28 | 4♥x | ♠3 | +1 | +6 |
| +8.2 | Round 7 | LARBI | 22 | 3NT | ♠4 | -1 | +10 |
| +7.0 | Round 7 | LARBI | 25 | 3NT | ♠7 | = | +10 |
| +6.8 | Round 2 | INDIA MIXED | 8 | 4♥ | ♠K | = | +11 |
| +5.3 | Round 2 | INDIA MIXED | 5 | 5♠ | ♦A | -2 | +7 |
| +5.1 | Round 10 | PORTUCOLE | 24 | 3NT | ♦Q | -1 | +13 |
| +4.8 | Round 6 | 4FUN | 15 | 5♣x | ♥4 | -1 | +11 |
| +4.4 | Round 2 | INDIA MIXED | 6 | 1♠ | ♦4 | = | +0 |
| +4.3 | Round 3 | INDIAN SENIORS | 13 | 4♠x | ♦K | -1 | +0 |
| +4.3 | Round 9 | POLAND MIXT | 13 | 3♠ | ♦A | -3 | +8 |
| +4.3 | Round 10 | PORTUCOLE | 25 | 6♥ | ♦2 | = | +1 |
| +4.1 | Round 1 | BOKKEROOS | 9 | 3♥ | ♣2 | = | +1 |
| +3.2 | Round 7 | LARBI | 30 | 4♥ | ♣A | +1 | +0 |
| +3.1 | Round 10 | PORTUCOLE | 29 | 1NT | ♣7 | -2 | +3 |
| +2.8 | Round 9 | POLAND MIXT | 17 | 1NT | ♦Q | +2 | +1 |
| +2.6 | Round 2 | INDIA MIXED | 2 | 3♥ | ♠5 | -1 | +11 |
| +2.4 | Round 9 | POLAND MIXT | 20 | 4♠x | ♦10 | -2 | -3 |
| +2.3 | Round 1 | BOKKEROOS | 6 | 3♥ | ♥K | = | +0 |
| +2.2 | Round 1 | BOKKEROOS | 8 | 4♥ | ♠4 | = | +0 |
| +2.1 | Round 3 | INDIAN SENIORS | 17 | 3NT | ♠7 | +1 | +14 |
| +2.1 | Round 9 | POLAND MIXT | 18 | 2♠ | ♥8 | = | +12 |
| +2.0 | Round 2 | INDIA MIXED | 3 | 4♥ | ♥2 | +1 | +0 |
| +2.0 | Round 7 | LARBI | 23 | 4♠ | ♣Q | +1 | -13 |
| +1.7 | Round 6 | 4FUN | 17 | 4♠ | ♥K | +2 | +11 |
| +1.3 | Round 1 | BOKKEROOS | 2 | 4♥ | ♠3 | +3 | -10 |
| +1.2 | Round 1 | BOKKEROOS | 10 | 3♣ | ♦J | = | +0 |
| +1.1 | Round 1 | BOKKEROOS | 5 | 4♥ | ♠J | +1 | +0 |
| +1.1 | Round 2 | INDIA MIXED | 9 | 3♠ | ♥A | = | -10 |
| +1.1 | Round 9 | POLAND MIXT | 16 | 4♠ | ♥3 | -1 | -2 |
| +1.0 | Round 7 | LARBI | 24 | 3NT | ♠Q | = | +0 |
| +1.0 | Round 9 | POLAND MIXT | 11 | 4♠ | ♣K | = | -9 |
| +0.7 | Round 1 | BOKKEROOS | 1 | 1♠ | ♣J | +1 | +5 |
| +0.7 | Round 7 | LARBI | 28 | 3♣ | ♠J | = | -7 |
| +0.5 | Round 7 | LARBI | 27 | 2♦ | ♠3 | +2 | +7 |
| -0.1 | Round 6 | 4FUN | 20 | 3♦ | ♠A | +1 | +10 |
| -0.2 | Round 2 | INDIA MIXED | 4 | 4♠ | ♦5 | +1 | +0 |
| -0.8 | Round 6 | 4FUN | 13 | 4♠ | ♣K | +1 | -4 |
| -1.0 | Round 7 | LARBI | 21 | 3NT | ♦J | -2 | -6 |
| -1.3 | Round 1 | BOKKEROOS | 4 | 4♥ | ♠Q | -1 | +1 |
| -1.3 | Round 6 | 4FUN | 14 | 2♦x | ♠5 | -3 | -1 |
| -1.6 | Round 10 | PORTUCOLE | 27 | 1NT | ♥3 | -2 | +0 |
| -1.7 | Round 2 | INDIA MIXED | 7 | 4♠ | ♦2 | +2 | -2 |
| -1.7 | Round 3 | INDIAN SENIORS | 19 | 3NT | ♣4 | +1 | +1 |
| -1.7 | Round 6 | 4FUN | 16 | 3♥ | ♦8 | -1 | -6 |
| -2.0 | Round 10 | PORTUCOLE | 21 | 4♥ | ♠3 | -1 | -5 |
| -2.5 | Round 9 | POLAND MIXT | 15 | 3♠ | ♦K | +1 | +8 |
| -2.6 | Round 9 | POLAND MIXT | 19 | 3NT | ♠6 | +3 | -17 |
| -3.9 | Round 3 | INDIAN SENIORS | 14 | 2♥ | ♣A | = | -6 |
| -4.0 | Round 1 | BOKKEROOS | 7 | 2♦ | ♠5 | -1 | -1 |
| -4.2 | Round 10 | PORTUCOLE | 26 | 4♥ | ♦6 | -1 | -12 |
| -4.2 | Round 10 | PORTUCOLE | 30 | 4♥ | ♦J | +2 | -11 |
| -4.6 | Round 3 | INDIAN SENIORS | 20 | 2♠ | ♦K | = | +0 |
| -4.8 | Round 3 | INDIAN SENIORS | 16 | 3♦ | ♣10 | -2 | -7 |
| -5.1 | Round 3 | INDIAN SENIORS | 11 | 3NT | ♦Q | -2 | -6 |
| -5.7 | Round 1 | BOKKEROOS | 3 | 3♦ | ♠Q | +1 | -10 |
| -6.0 | Round 2 | INDIA MIXED | 1 | 5♦ | ♥4 | = | +0 |
| -6.3 | Round 9 | POLAND MIXT | 12 | 6NT | ♥8 | -1 | -11 |
| -6.4 | Round 2 | INDIA MIXED | 10 | 3NT | ♦9 | -1 | -12 |
| -6.5 | Round 9 | POLAND MIXT | 14 | 4♠ | ♣Q | -1 | -11 |
| -7.2 | Round 3 | INDIAN SENIORS | 12 | 4♥ | ♦8 | = | -11 |
| -8.1 | Round 7 | LARBI | 29 | 4♥x | ♠K | = | -5 |
| -8.5 | Round 6 | 4FUN | 18 | 3NT | ♠2 | -1 | -14 |
| -8.5 | Round 6 | 4FUN | 19 | 4♥ | ♠A | +1 | -2 |
| -8.8 | Round 6 | 4FUN | 12 | 3NT | ♣8 | +2 | -8 |
| -9.9 | Round 10 | PORTUCOLE | 23 | 3NT | ♠3 | -1 | -16 |
| -10.5 | Round 10 | PORTUCOLE | 22 | 5♦ | ♠A | -4 | -10 |
| -14.3 | Round 6 | 4FUN | 11 | 5♠x | ♦5 | -5 | -14 |