🇹🇼 YEH Chen · CHINESE TAIPEI
122rank
-60.3Butler · 112 bds
-0.54per board
±4.9swing
-1.02vs par /bd
-0.55adjusted /bd
by round
vs par split: bidding -0.71 · play -0.62
Strength of schedule: opponents averaged -0.01/bd (an average draw) → opponent-adjusted -0.55/bd
Card play — on target: opening leads 87.0% · declarer play 63.6% · defence 73.3%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 87.0% (23) |
| Declarer play | · | 63.6% (11) |
| Defence | · | 73.3% (45) |
Opening leads by suit led: ♠ 85.7% (7) · ♥ 100.0% (7) · ♦ 100.0% (4) · ♣ 60.0% (5)
vs par by strain: a suit -1.47 (79)
vs par by level: part-score -1.08 (37) · game -1.35 (40) · slam -11.00 (2)
By role: declaring -0.40/bd (-2.33 vs par · 52) · defending -0.66/bd (+0.12 vs par · 60)
By vulnerability: vulnerable -1.06/bd (-1.55 vs par · 56) · not vulnerable -0.01/bd (-0.48 vs par · 56)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | C.Shen | P.Klimowicz – W.Frukacz | Open | 16 | -29.9 | -1.87 | -4.00 |
| Round 5 | J.Shih | A.Grant – A.Ker | Open | 16 | +37.0 | +2.31 | +0.00 |
| Round 9 | C.Shen | T.Teramoto – M.Takayama | Open | 16 | -28.0 | -1.75 | -3.31 |
| Round 10 | C.Shen | M.Toma – P.Brum | Open | 16 | -7.3 | -0.46 | -0.81 |
| Round 13 | C.Shen | F.Fantoni – C.Nunes | Open | 16 | -29.1 | -1.82 | -1.06 |
| Round 16 | C.Shen | J.Ahmed – T.Masood | Open | 16 | -4.3 | -0.27 | +1.50 |
| Round 21 | C.Shen | N.Eber – C.Bosenberg | Open | 16 | +1.3 | +0.08 | +0.56 |
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 |
|---|---|---|---|---|---|---|---|
| +10.1 | Round 1 | 🇨🇦 CANADA | 9 | 3N | ♣K | = | +10 |
| +9.2 | Round 5 | 🇳🇿 NEW ZEALAND | 6 | 6♠ | ♥Q | = | -11 |
| +8.9 | Round 5 | 🇳🇿 NEW ZEALAND | 5 | 4♠ | ♦K | -2 | +13 |
| +8.9 | Round 10 | 🇧🇷 BRAZIL | 3 | 3N | ♠J | = | +11 |
| +8.8 | Round 5 | 🇳🇿 NEW ZEALAND | 3 | 4♠x | ♥Q | -2 | +5 |
| +7.1 | Round 16 | 🇵🇰 PAKISTAN | 14 | 5♣ | ♠J | -1 | +14 |
| +6.8 | Round 5 | 🇳🇿 NEW ZEALAND | 15 | 4♥x | ♠Q | -2 | -10 |
| +6.6 | Round 21 | 🇿🇦 SOUTH AFRICA | 20 | 2♠ | ♣A | -2 | +13 |
| +6.2 | Round 5 | 🇳🇿 NEW ZEALAND | 7 | 4♠ | ♣4 | = | +0 |
| +6.1 | Round 13 | 🇮🇹 ITALY | 18 | 3N | ♥J | +1 | +7 |
| +5.5 | Round 9 | 🇯🇵 JAPAN | 15 | 4♠x | ♥A | = | +9 |
| +5.1 | Round 10 | 🇧🇷 BRAZIL | 15 | 2♦ | ♠Q | = | +10 |
| +4.9 | Round 5 | 🇳🇿 NEW ZEALAND | 10 | 4♥ | ♠7 | -3 | +5 |
| +4.8 | Round 21 | 🇿🇦 SOUTH AFRICA | 30 | 4♠ | ♥8 | -1 | +5 |
| +4.5 | Round 9 | 🇯🇵 JAPAN | 12 | 4♠ | ♥A | = | -1 |
| +4.4 | Round 1 | 🇨🇦 CANADA | 13 | 5♦ | ♠3 | +1 | -13 |
| +3.7 | Round 16 | 🇵🇰 PAKISTAN | 10 | 1N | ♦7 | -1 | +5 |
| +3.6 | Round 16 | 🇵🇰 PAKISTAN | 11 | 3♠ | ♠A | = | +1 |
| +3.5 | Round 9 | 🇯🇵 JAPAN | 2 | 5♠ | ♦4 | +1 | -5 |
| +3.4 | Round 13 | 🇮🇹 ITALY | 24 | 2♥ | ♦Q | +1 | +7 |
| +3.2 | Round 10 | 🇧🇷 BRAZIL | 6 | 3♠ | ♦K | -1 | -1 |
| +3.1 | Round 21 | 🇿🇦 SOUTH AFRICA | 19 | 3♣ | ♥Q | = | +0 |
| +3.0 | Round 10 | 🇧🇷 BRAZIL | 8 | 3♠ | ♥A | = | +6 |
| +3.0 | Round 10 | 🇧🇷 BRAZIL | 13 | 3♥ | ♣6 | = | +0 |
| +3.0 | Round 10 | 🇧🇷 BRAZIL | 16 | 5♦ | ♥A | -1 | +6 |
| +2.9 | Round 5 | 🇳🇿 NEW ZEALAND | 11 | 3♠ | ♥K | = | +0 |
| +2.9 | Round 21 | 🇿🇦 SOUTH AFRICA | 22 | 3N | ♦2 | -1 | +5 |
| +2.5 | Round 9 | 🇯🇵 JAPAN | 16 | 3♠ | ♦Q | -1 | -2 |
| +2.5 | Round 13 | 🇮🇹 ITALY | 21 | 4♥ | ♥Q | -2 | +2 |
| +2.1 | Round 5 | 🇳🇿 NEW ZEALAND | 2 | 4♥ | ♠7 | +1 | +7 |
| +2.1 | Round 16 | 🇵🇰 PAKISTAN | 6 | 3♠ | ♣9 | -1 | +4 |
| +1.7 | Round 1 | 🇨🇦 CANADA | 12 | 4♠ | ♦4 | = | +6 |
| +1.7 | Round 10 | 🇧🇷 BRAZIL | 2 | 1Nx | ♦K | -1 | +0 |
| +1.7 | Round 16 | 🇵🇰 PAKISTAN | 9 | 3N | ♥Q | -1 | +5 |
| +1.6 | Round 5 | 🇳🇿 NEW ZEALAND | 16 | 3♠ | ♦K | -2 | +0 |
| +1.6 | Round 13 | 🇮🇹 ITALY | 25 | 3N | ♣6 | +2 | +0 |
| +1.5 | Round 5 | 🇳🇿 NEW ZEALAND | 4 | 1N | ♥4 | +2 | +0 |
| +1.5 | Round 21 | 🇿🇦 SOUTH AFRICA | 28 | 4♦ | ♥6 | -1 | -5 |
| +1.4 | Round 5 | 🇳🇿 NEW ZEALAND | 14 | 2♥ | ♦K | +2 | +6 |
| +1.4 | Round 9 | 🇯🇵 JAPAN | 11 | 3N | ♠J | -2 | +6 |
| +1.3 | Round 9 | 🇯🇵 JAPAN | 14 | 2♠ | ♥K | = | +0 |
| +1.2 | Round 9 | 🇯🇵 JAPAN | 9 | 3N | ♥7 | +3 | +1 |
| +1.0 | Round 21 | 🇿🇦 SOUTH AFRICA | 21 | 4♥ | ♠A | +1 | +11 |
| +0.9 | Round 21 | 🇿🇦 SOUTH AFRICA | 29 | 3N | ♠J | +1 | +0 |
| +0.7 | Round 1 | 🇨🇦 CANADA | 4 | 5♦ | ♦2 | +1 | -5 |
| +0.7 | Round 10 | 🇧🇷 BRAZIL | 1 | 4♠ | ♣5 | -2 | +0 |
| +0.5 | Round 16 | 🇵🇰 PAKISTAN | 15 | 1N | ♣3 | +1 | +0 |
| +0.4 | Round 1 | 🇨🇦 CANADA | 8 | 3N | ♥A | = | -2 |
| +0.4 | Round 13 | 🇮🇹 ITALY | 23 | Pass | +3 | ||
| +0.1 | Round 16 | 🇵🇰 PAKISTAN | 13 | 3N | ♦3 | +1 | +0 |
| -0.0 | Round 1 | 🇨🇦 CANADA | 14 | 5♥ | ♠K | +1 | -14 |
| +0.0 | Round 16 | 🇵🇰 PAKISTAN | 8 | 4♥ | ♥J | = | +0 |
| -0.0 | Round 21 | 🇿🇦 SOUTH AFRICA | 17 | 3N | ♥8 | -2 | +5 |
| -0.1 | Round 13 | 🇮🇹 ITALY | 19 | 4♥ | ♦2 | +1 | +0 |
| -0.1 | Round 13 | 🇮🇹 ITALY | 20 | 5♣ | ♥A | = | +11 |
| -0.2 | Round 5 | 🇳🇿 NEW ZEALAND | 8 | 3N | ♠2 | +2 | +0 |
| -0.2 | Round 10 | 🇧🇷 BRAZIL | 4 | 2♠ | ♣K | -1 | +0 |
| -0.2 | Round 10 | 🇧🇷 BRAZIL | 9 | 3♦ | ♠A | -1 | +0 |
| -0.3 | Round 9 | 🇯🇵 JAPAN | 13 | 3N | ♠5 | = | +0 |
| -0.3 | Round 16 | 🇵🇰 PAKISTAN | 5 | 2♠ | ♥3 | = | +10 |
| -0.5 | Round 10 | 🇧🇷 BRAZIL | 5 | 2♠ | ♥5 | +2 | -1 |
| -0.6 | Round 10 | 🇧🇷 BRAZIL | 7 | 3N | ♠3 | +1 | +0 |
| -0.6 | Round 16 | 🇵🇰 PAKISTAN | 1 | 3N | ♠3 | +1 | +0 |
| -0.6 | Round 16 | 🇵🇰 PAKISTAN | 3 | 3N | ♥10 | +2 | +10 |
| -0.6 | Round 21 | 🇿🇦 SOUTH AFRICA | 25 | 3N | ♣7 | +2 | -1 |
| -0.7 | Round 1 | 🇨🇦 CANADA | 6 | 1N | ♣5 | +1 | +1 |
| -0.8 | Round 1 | 🇨🇦 CANADA | 16 | 3N | ♦K | +2 | -1 |
| -0.8 | Round 9 | 🇯🇵 JAPAN | 1 | 4♠ | ♥10 | -1 | +5 |
| -1.0 | Round 1 | 🇨🇦 CANADA | 2 | 4♠ | ♦K | = | -1 |
| -1.0 | Round 5 | 🇳🇿 NEW ZEALAND | 13 | 2♥ | ♣Q | +1 | +0 |
| -1.2 | Round 21 | 🇿🇦 SOUTH AFRICA | 31 | 2♠ | ♦10 | -1 | +0 |
| -1.3 | Round 16 | 🇵🇰 PAKISTAN | 16 | 2♠ | ♣Q | +1 | +0 |
| -1.4 | Round 1 | 🇨🇦 CANADA | 5 | 2♥ | ♣6 | = | -1 |
| -1.4 | Round 16 | 🇵🇰 PAKISTAN | 12 | 2♦ | ♣2 | +1 | +0 |
| -1.5 | Round 21 | 🇿🇦 SOUTH AFRICA | 23 | 4♥ | ♠4 | +1 | +0 |
| -1.8 | Round 21 | 🇿🇦 SOUTH AFRICA | 18 | 3♦ | ♠10 | +2 | -1 |
| -1.9 | Round 9 | 🇯🇵 JAPAN | 5 | 3N | ♥3 | +1 | -14 |
| -1.9 | Round 13 | 🇮🇹 ITALY | 30 | 4♥ | ♠5 | +1 | -1 |
| -1.9 | Round 13 | 🇮🇹 ITALY | 31 | 3N | ♦5 | -2 | -6 |
| -2.1 | Round 1 | 🇨🇦 CANADA | 1 | Pass | -4 | ||
| -2.1 | Round 13 | 🇮🇹 ITALY | 26 | 2♠ | ♥5 | -2 | -2 |
| -2.4 | Round 5 | 🇳🇿 NEW ZEALAND | 1 | 3♦ | ♥2 | -1 | +2 |
| -2.6 | Round 21 | 🇿🇦 SOUTH AFRICA | 27 | 5♠ | ♦3 | -1 | -2 |
| -2.7 | Round 21 | 🇿🇦 SOUTH AFRICA | 26 | 2N | ♥K | -1 | -5 |
| -3.0 | Round 10 | 🇧🇷 BRAZIL | 14 | 5♦x | ♥2 | -1 | -5 |
| -3.0 | Round 16 | 🇵🇰 PAKISTAN | 4 | 4♥ | ♠Q | -1 | -7 |
| -3.3 | Round 13 | 🇮🇹 ITALY | 17 | 3♣ | ♦A | -1 | -5 |
| -3.4 | Round 10 | 🇧🇷 BRAZIL | 12 | 1N | ♥4 | -1 | -11 |
| -3.7 | Round 21 | 🇿🇦 SOUTH AFRICA | 24 | 5♥ | ♠A | -2 | -5 |
| -3.8 | Round 1 | 🇨🇦 CANADA | 11 | 4♠ | ♦A | -4 | -6 |
| -3.9 | Round 13 | 🇮🇹 ITALY | 32 | 1N | ♦2 | -1 | -5 |
| -4.0 | Round 16 | 🇵🇰 PAKISTAN | 2 | 3N | ♣4 | -1 | -5 |
| -4.1 | Round 9 | 🇯🇵 JAPAN | 7 | 4♣ | ♦A | = | -10 |
| -4.5 | Round 5 | 🇳🇿 NEW ZEALAND | 9 | 5♦ | ♥A | = | -7 |
| -4.5 | Round 13 | 🇮🇹 ITALY | 27 | 2♠ | ♣5 | +1 | -4 |
| -4.6 | Round 9 | 🇯🇵 JAPAN | 10 | 3♥ | ♥5 | -1 | -5 |
| -5.0 | Round 13 | 🇮🇹 ITALY | 28 | 2♠ | ♦J | +2 | -6 |
| -5.4 | Round 21 | 🇿🇦 SOUTH AFRICA | 32 | 3♠ | ♦5 | = | -11 |
| -7.0 | Round 1 | 🇨🇦 CANADA | 3 | 4♥ | ♣7 | +1 | -1 |
| -8.0 | Round 9 | 🇯🇵 JAPAN | 4 | 3♣ | ♦A | -2 | -7 |
| -8.2 | Round 9 | 🇯🇵 JAPAN | 3 | 4♥ | ♣A | = | -6 |
| -9.2 | Round 5 | 🇳🇿 NEW ZEALAND | 12 | 4♥ | ♠A | -1 | -10 |
| -9.3 | Round 9 | 🇯🇵 JAPAN | 6 | 4♥x | ♠6 | = | -9 |
| -9.8 | Round 1 | 🇨🇦 CANADA | 7 | 1♣x | ♥A | -1 | -9 |
| -9.8 | Round 1 | 🇨🇦 CANADA | 15 | 6♠ | ♥8 | +1 | -11 |
| -9.9 | Round 13 | 🇮🇹 ITALY | 22 | 4♥ | ♥ | -1 | -13 |
| -10.4 | Round 13 | 🇮🇹 ITALY | 29 | 5♦x | ♦2 | -3 | -5 |
| -10.7 | Round 9 | 🇯🇵 JAPAN | 8 | 2♠x | ♥A | -2 | -15 |
| -10.8 | Round 1 | 🇨🇦 CANADA | 10 | 4♥ | ♣A | = | -13 |
| -11.9 | Round 16 | 🇵🇰 PAKISTAN | 7 | 3N | ♦Q | -2 | -13 |
| -12.2 | Round 10 | 🇧🇷 BRAZIL | 11 | 4♦x | ♣A | = | -14 |
| -15.8 | Round 10 | 🇧🇷 BRAZIL | 10 | 4♠x | ♥A | = | -14 |