CHEN Yan · BEAUTIFUL YAN
203rank
+15.9Butler · 100 bds
+0.16per board
±4.5swing
-0.20vs par /bd · #315/518
+0.13adjusted /bd
by round
vs par split: bidding -0.05 · play -0.15
Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted +0.13/bd
Card play — on target: opening leads 81.0% #244 of 518 · declarer play 77.4% #206 of 517 · defence 72.7% #476 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 84.6% (13) |
| Declarer play | 81.8% (11) | 75.0% (20) |
| Defence | 68.8% (16) | 75.0% (28) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 85.7% (7) · ♦ 66.7% (3) · ♣ 85.7% (7)
vs par by strain: NT -0.55 (31) · a suit -0.04 (69)
vs par by level: part-score -0.20 (41) · game -0.91 (53) · slam +6.00 (6)
By role: declaring +0.32/bd (-1.88 vs par · 56) · defending -0.04/bd (+1.93 vs par · 44)
By vulnerability: vulnerable +0.17/bd (+0.12 vs par · 49) · not vulnerable +0.15/bd (-0.51 vs par · 51)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Zhang | E.Ginossar – R.Barr | Open | 10 | -2.6 | -0.26 | -1.90 |
| Round 2 | W.Zhang | L.Perlmutter – G.Wolpert | Open | 10 | +19.2 | +1.92 | +0.90 |
| Round 3 | W.Zhang | J.Weingold – D.Clerkin | Open | 10 | +12.8 | +1.28 | +1.00 |
| Round 4 | W.Zhang | B.Saurer – D.Fischer | Open | 10 | -15.8 | -1.58 | +0.10 |
| Round 5 | W.Zhang | S.Shan – L.Gan | Open | 10 | +0.3 | +0.03 | +0.00 |
| Round 6 | W.Zhang | T.Verbeek – H.Levi | Open | 10 | -9.4 | -0.94 | +0.20 |
| Round 7 | W.Zhang | T.Paske – S.Gross | Open | 10 | -0.1 | -0.01 | +1.60 |
| Round 8 | W.Zhang | K.Buchen – P.Buchen | Open | 10 | +26.0 | +2.60 | +2.00 |
| Round 9 | W.Zhang | F.Multon – S.Willard | Open | 10 | -27.5 | -2.75 | -5.00 |
| Round 10 | W.Zhang | D.Gaviard – P.Street | Open | 10 | +13.0 | +1.30 | -0.90 |
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 |
|---|---|---|---|---|---|---|---|
| +16.9 | Round 7 | PASKE | 13 | 6NTx | ♦A | -4 | +21 |
| +9.1 | Round 1 | BARR | 2 | 2♠ | ♦3 | +1 | +10 |
| +8.8 | Round 6 | PDC | 3 | 6♥ | ♠3 | = | +0 |
| +8.4 | Round 5 | LU DONG | 22 | 3♥ | ♣10 | -1 | +6 |
| +7.9 | Round 8 | FIFIROOS | 6 | 6♦ | ♣7 | = | +0 |
| +7.6 | Round 2 | PERLMUTTER | 15 | 4♥ | ♠K | = | -13 |
| +7.4 | Round 3 | GARFIELD | 4 | 6♦ | ♦4 | -1 | +13 |
| +7.1 | Round 3 | GARFIELD | 2 | 4♠ | ♥5 | = | +0 |
| +7.1 | Round 8 | FIFIROOS | 9 | 3NT | ♥Q | -2 | +12 |
| +7.0 | Round 2 | PERLMUTTER | 17 | 4♠ | ♥K | = | +3 |
| +6.9 | Round 3 | GARFIELD | 5 | 3NT | ♠4 | -3 | +12 |
| +6.9 | Round 8 | FIFIROOS | 1 | 3NTx | ♣4 | +1 | +6 |
| +6.7 | Round 8 | FIFIROOS | 5 | 3♥ | ♣4 | = | +7 |
| +6.5 | Round 10 | ASCIUGAMANI | 28 | 5♥ | ♦5 | -2 | +7 |
| +5.5 | Round 4 | KEY LIME PIE | 13 | 3NT | ♥4 | = | +10 |
| +3.9 | Round 10 | ASCIUGAMANI | 26 | 2♥ | ♠A | +1 | +1 |
| +3.8 | Round 2 | PERLMUTTER | 12 | 4♠ | ♦2 | = | +10 |
| +3.5 | Round 10 | ASCIUGAMANI | 25 | 4♠ | ♣2 | +2 | +2 |
| +3.4 | Round 5 | LU DONG | 25 | 3NT | ♠8 | = | +5 |
| +3.2 | Round 6 | PDC | 1 | 5♦ | ♥3 | = | +7 |
| +3.2 | Round 7 | PASKE | 17 | 4♠ | ♥3 | -1 | +10 |
| +3.1 | Round 5 | LU DONG | 23 | 4♥ | ♣5 | -1 | +6 |
| +2.9 | Round 8 | FIFIROOS | 4 | 5♥x | ♣A | -1 | +9 |
| +2.8 | Round 5 | LU DONG | 29 | 3NT | ♥J | = | -1 |
| +2.7 | Round 2 | PERLMUTTER | 19 | 2♥ | ♦8 | = | +5 |
| +2.4 | Round 7 | PASKE | 14 | 5♣ | ♥A | = | +0 |
| +2.3 | Round 1 | BARR | 7 | 3♣ | ♦9 | = | +0 |
| +2.0 | Round 1 | BARR | 10 | 3♠ | ♦9 | = | +0 |
| +2.0 | Round 3 | GARFIELD | 8 | 4♥ | ♥K | -1 | -6 |
| +1.9 | Round 1 | BARR | 6 | 3NT | ♣3 | +1 | +0 |
| +1.8 | Round 10 | ASCIUGAMANI | 27 | 2♥ | ♦K | +2 | -6 |
| +1.2 | Round 4 | KEY LIME PIE | 18 | 3♠ | ♥3 | = | +0 |
| +1.1 | Round 4 | KEY LIME PIE | 12 | 3♣ | ♠3 | -1 | +1 |
| +1.1 | Round 4 | KEY LIME PIE | 14 | 3♥ | ♦A | -1 | -2 |
| +1.0 | Round 8 | FIFIROOS | 7 | 2♠ | ♣3 | +2 | +10 |
| +0.9 | Round 1 | BARR | 5 | 2♠ | ♥Q | = | -1 |
| +0.8 | Round 7 | PASKE | 11 | 2♠ | ♣Q | -2 | +0 |
| +0.8 | Round 10 | ASCIUGAMANI | 24 | 2♠ | ♠2 | -1 | +5 |
| +0.7 | Round 1 | BARR | 4 | 4♠ | ♥3 | = | +1 |
| +0.7 | Round 2 | PERLMUTTER | 13 | 4♠ | ♣5 | +1 | +13 |
| +0.7 | Round 2 | PERLMUTTER | 16 | 3NT | ♠J | +1 | +0 |
| +0.7 | Round 10 | ASCIUGAMANI | 29 | 2♠ | ♦K | = | +0 |
| +0.5 | Round 9 | ZIMMERMANN | 11 | 4♠ | ♦9 | +1 | +0 |
| +0.3 | Round 2 | PERLMUTTER | 18 | 2♦ | ♠6 | -1 | +1 |
| +0.3 | Round 9 | ZIMMERMANN | 17 | 4♥ | ♦6 | +1 | -10 |
| +0.1 | Round 9 | ZIMMERMANN | 20 | 1NT | ♦6 | +1 | +1 |
| -0.2 | Round 5 | LU DONG | 24 | 2♠ | ♥4 | +1 | -7 |
| -0.2 | Round 9 | ZIMMERMANN | 18 | 3NT | ♥4 | +1 | +0 |
| -0.2 | Round 10 | ASCIUGAMANI | 21 | 2♥ | ♥5 | = | +1 |
| -0.2 | Round 10 | ASCIUGAMANI | 30 | 2♥ | ♠J | +2 | -6 |
| -0.3 | Round 3 | GARFIELD | 6 | 4♥ | ♣8 | = | -1 |
| -0.4 | Round 2 | PERLMUTTER | 20 | 4♥ | ♠7 | +1 | +0 |
| -0.4 | Round 9 | ZIMMERMANN | 16 | 4♠ | ♣9 | +1 | +0 |
| -0.5 | Round 6 | PDC | 8 | 1NT | ♥3 | +2 | -6 |
| -0.7 | Round 8 | FIFIROOS | 3 | 1NT | ♠2 | -1 | +2 |
| -0.9 | Round 3 | GARFIELD | 3 | 3NT | ♣10 | +2 | -1 |
| -1.0 | Round 2 | PERLMUTTER | 11 | 3♠ | ♥9 | +1 | +4 |
| -1.2 | Round 3 | GARFIELD | 10 | 1♠ | ♣K | +1 | -1 |
| -1.2 | Round 6 | PDC | 2 | 3NT | ♦2 | +1 | -1 |
| -1.3 | Round 3 | GARFIELD | 9 | 3♦ | ♥10 | = | +1 |
| -1.3 | Round 8 | FIFIROOS | 8 | 3♠ | ♣8 | -1 | -5 |
| -1.4 | Round 1 | BARR | 1 | 2NT | ♠2 | -1 | +1 |
| -1.5 | Round 6 | PDC | 4 | 3NT | ♠4 | = | +1 |
| -1.5 | Round 6 | PDC | 10 | 3♥ | ♦A | -1 | +0 |
| -1.6 | Round 4 | KEY LIME PIE | 16 | 2♦ | ♥J | -1 | +11 |
| -1.7 | Round 5 | LU DONG | 21 | 1NT | ♥2 | = | +0 |
| -1.7 | Round 10 | ASCIUGAMANI | 23 | 4♥ | ♠2 | -1 | -12 |
| -1.8 | Round 6 | PDC | 6 | 4♠ | ♥J | +1 | +0 |
| -1.8 | Round 8 | FIFIROOS | 10 | 2♠ | ♣5 | +3 | -9 |
| -2.0 | Round 7 | PASKE | 16 | 4♠ | ♣Q | +2 | -1 |
| -2.0 | Round 7 | PASKE | 19 | 3♣ | ♦K | -1 | +0 |
| -2.1 | Round 6 | PDC | 9 | 3♠ | ♣A | -1 | +2 |
| -2.1 | Round 10 | ASCIUGAMANI | 22 | 3♥ | ♣A | +1 | -1 |
| -2.2 | Round 2 | PERLMUTTER | 14 | 3NT | ♠7 | +2 | -14 |
| -2.2 | Round 4 | KEY LIME PIE | 17 | 3NT | ♣2 | +3 | -2 |
| -2.3 | Round 4 | KEY LIME PIE | 19 | 5♦x | ♥6 | -2 | +5 |
| -2.3 | Round 5 | LU DONG | 26 | 6NT | ♣5 | = | +0 |
| -2.5 | Round 5 | LU DONG | 28 | 1NT | ♠3 | -2 | -2 |
| -2.6 | Round 5 | LU DONG | 30 | 3NT | ♠10 | +2 | +0 |
| -2.6 | Round 7 | PASKE | 18 | 6♣ | ♦K | = | +2 |
| -2.7 | Round 8 | FIFIROOS | 2 | 3NT | ♥A | -1 | -12 |
| -2.9 | Round 9 | ZIMMERMANN | 13 | 3NT | ♠Q | -2 | -8 |
| -3.3 | Round 3 | GARFIELD | 7 | 3♣ | ♥K | -1 | +0 |
| -3.4 | Round 7 | PASKE | 15 | 3♥ | ♠K | = | +0 |
| -3.6 | Round 3 | GARFIELD | 1 | 3NT | ♣4 | +1 | -7 |
| -3.7 | Round 9 | ZIMMERMANN | 12 | 5♥x | ♠A | -1 | -11 |
| -3.7 | Round 9 | ZIMMERMANN | 19 | 4♥ | ♦6 | +2 | -2 |
| -4.0 | Round 4 | KEY LIME PIE | 11 | 3♥ | ♦Q | -1 | -5 |
| -4.7 | Round 1 | BARR | 3 | 3♦ | ♥A | +3 | -14 |
| -5.0 | Round 1 | BARR | 8 | 5♦ | ♣2 | -1 | -10 |
| -6.4 | Round 6 | PDC | 5 | 5♥x | ♥A | -4 | -3 |
| -6.4 | Round 6 | PDC | 7 | 5♣ | ♠4 | = | +2 |
| -6.4 | Round 7 | PASKE | 20 | 2♥ | ♠3 | -1 | -12 |
| -6.6 | Round 4 | KEY LIME PIE | 15 | 3NT | ♥8 | = | -7 |
| -7.0 | Round 7 | PASKE | 12 | 3NT | ♦Q | +1 | -4 |
| -8.0 | Round 4 | KEY LIME PIE | 20 | 3NT | ♣4 | = | -10 |
| -8.1 | Round 5 | LU DONG | 27 | 3NT | ♣2 | +1 | -7 |
| -8.3 | Round 9 | ZIMMERMANN | 14 | 5♦x | ♥K | = | -10 |
| -8.4 | Round 1 | BARR | 9 | 3NT | ♣3 | -1 | -6 |
| -9.2 | Round 9 | ZIMMERMANN | 15 | 5♥x | ♦8 | -5 | -10 |