🇺🇸 JENG Richard · USA 2
77rank
-44.3Butler · 110 bds
-0.40per board
±4.7swing
-0.30adjusted /bd
by round
Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted -0.30/bd
By role: declaring +0.06/bd (42) · defending -0.69/bd (68)
By vulnerability: not vulnerable -0.40/bd (110)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | A.Jeng | J.Stern – J.Patchett | Open | 10 | +19.5 | +1.95 | · |
| Round 3 | A.Jeng | P.Hao – H.Lee | Open | 10 | +3.9 | +0.39 | · |
| Round 5 | A.Jeng | S.Shah – T.Rainforth | Open | 10 | +5.8 | +0.58 | · |
| Round 6 | A.Jeng | D.Covill Gullberg – J.Karlsson | Closed | 10 | -19.3 | -1.93 | · |
| Round 7 | A.Jeng | E.Wackwitz – V.Nab | Open | 10 | -7.8 | -0.78 | · |
| Round 8 | A.Jeng | D.Garcia Da Rosa – G.Minutti | Closed | 10 | -2.0 | -0.20 | · |
| Round 10 | A.Jeng | T.Jochymski – W.Kazmierczak | Closed | 10 | +17.4 | +1.74 | · |
| Round 11 | A.Jeng | S.Huang – M.Luo | Closed | 10 | -2.0 | -0.20 | · |
| Round 13 | A.Jeng | C.Thizy – T.Coudert | Closed | 10 | -29.9 | -2.99 | · |
| Round 14 | A.Jeng | M.Henbest – L.Ginnan | Closed | 10 | -7.1 | -0.71 | · |
| Round 15 | A.Jeng | A.Lazar – M.Meyouhas | Open | 10 | -22.8 | -2.28 | · |
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 |
|---|---|---|---|---|---|---|---|
| +14.2 | Round 11 | 🇨🇦 Canada | 24 | 5♦x | ♥A | -5 | · |
| +13.1 | Round 10 | 🇵🇱 Poland | 11 | 7♦ | ♥Q | -1 | · |
| +9.6 | Round 3 | 🇹🇼 Chinese Taipei | 21 | 3N | ♣K | -2 | · |
| +9.6 | Round 3 | 🇹🇼 Chinese Taipei | 26 | 5♣ | ♦7 | = | · |
| +9.1 | Round 8 | 🇺🇾 Uruguay | 22 | 6♠ | ♥9 | = | · |
| +8.6 | Round 6 | 🇸🇪 Sweden | 8 | 3N | ♣Q | +3 | · |
| +8.2 | Round 1 | 🇺🇸 USA 1 | 9 | 4♠ | ♦7 | -1 | · |
| +8.0 | Round 10 | 🇵🇱 Poland | 20 | 4♦x | ♦7 | -2 | · |
| +6.5 | Round 1 | 🇺🇸 USA 1 | 6 | 3N | ♠3 | -3 | · |
| +6.5 | Round 1 | 🇺🇸 USA 1 | 8 | 6Nx | ♦3 | -1 | · |
| +6.1 | Round 11 | 🇨🇦 Canada | 22 | 4♠ | ♥7 | = | · |
| +5.7 | Round 5 | 🏴 England | 26 | 3N | ♣2 | +2 | · |
| +4.7 | Round 7 | 🇳🇱 Netherlands | 11 | 5♣ | ♥K | -2 | · |
| +4.5 | Round 8 | 🇺🇾 Uruguay | 28 | 2♥ | ♠J | = | · |
| +4.1 | Round 14 | 🇦🇺 Australia | 8 | 4♥ | ♠T | -1 | · |
| +3.9 | Round 8 | 🇺🇾 Uruguay | 26 | 5♣ | ♠4 | -1 | · |
| +3.7 | Round 14 | 🇦🇺 Australia | 10 | 4♥ | ♣5 | = | · |
| +3.6 | Round 7 | 🇳🇱 Netherlands | 12 | 2♠ | ♠3 | -2 | · |
| +3.5 | Round 3 | 🇹🇼 Chinese Taipei | 28 | 4♠ | ♥K | +1 | · |
| +3.5 | Round 15 | 🇮🇱 Israel | 18 | 3N | ♠T | -1 | · |
| +3.1 | Round 3 | 🇹🇼 Chinese Taipei | 27 | 3♠ | ♦5 | -1 | · |
| +3.0 | Round 5 | 🏴 England | 23 | 4♠ | ♦A | -2 | · |
| +2.9 | Round 5 | 🏴 England | 29 | 3♣ | ♠8 | +1 | · |
| +2.7 | Round 6 | 🇸🇪 Sweden | 1 | 2♦ | ♥7 | = | · |
| +2.6 | Round 3 | 🇹🇼 Chinese Taipei | 23 | 2N | ♥3 | +2 | · |
| +2.3 | Round 10 | 🇵🇱 Poland | 12 | 3♥ | ♣A | -2 | · |
| +2.3 | Round 11 | 🇨🇦 Canada | 29 | 3N | ♠6 | +3 | · |
| +2.1 | Round 5 | 🏴 England | 30 | 3♠ | ♦8 | -2 | · |
| +2.1 | Round 14 | 🇦🇺 Australia | 1 | 5♦ | ♣K | = | · |
| +1.9 | Round 3 | 🇹🇼 Chinese Taipei | 25 | 1N | ♣3 | = | · |
| +1.9 | Round 15 | 🇮🇱 Israel | 17 | 3N | ♣3 | +1 | · |
| +1.8 | Round 10 | 🇵🇱 Poland | 13 | 4♠x | ♦T | -2 | · |
| +1.3 | Round 1 | 🇺🇸 USA 1 | 5 | 1♦ | ♠5 | +1 | · |
| +1.2 | Round 8 | 🇺🇾 Uruguay | 21 | 5♦ | ♣K | +1 | · |
| +1.1 | Round 14 | 🇦🇺 Australia | 7 | 5♥ | ♦3 | = | · |
| +0.9 | Round 7 | 🇳🇱 Netherlands | 20 | 3♦ | ♣Q | +1 | · |
| +0.5 | Round 8 | 🇺🇾 Uruguay | 25 | 3♠ | ♥A | = | · |
| +0.5 | Round 13 | 🇫🇷 France | 18 | 2♥ | ♣3 | +1 | · |
| +0.3 | Round 1 | 🇺🇸 USA 1 | 1 | 2♦ | ♥6 | +1 | · |
| +0.3 | Round 1 | 🇺🇸 USA 1 | 2 | 3N | ♥4 | = | · |
| +0.3 | Round 5 | 🏴 England | 24 | 2♦ | ♣A | +1 | · |
| +0.1 | Round 5 | 🏴 England | 28 | 4♠ | ♥3 | = | · |
| +0.1 | Round 8 | 🇺🇾 Uruguay | 29 | 2N | ♣9 | -1 | · |
| +0.0 | Round 1 | 🇺🇸 USA 1 | 3 | 4♠ | ♦3 | +1 | · |
| -0.1 | Round 5 | 🏴 England | 22 | 2♠ | ♥4 | +1 | · |
| -0.1 | Round 11 | 🇨🇦 Canada | 25 | 3N | ♥5 | -1 | · |
| -0.1 | Round 13 | 🇫🇷 France | 19 | 4♠ | ♣J | +1 | · |
| -0.1 | Round 15 | 🇮🇱 Israel | 16 | 3N | ♥7 | = | · |
| -0.2 | Round 1 | 🇺🇸 USA 1 | 10 | 2N | ♦Q | -1 | · |
| -0.2 | Round 6 | 🇸🇪 Sweden | 2 | 3N | ♥3 | +2 | · |
| -0.3 | Round 7 | 🇳🇱 Netherlands | 15 | 4♠ | ♥Q | +2 | · |
| -0.4 | Round 6 | 🇸🇪 Sweden | 7 | 3N | ♣K | +1 | · |
| -0.4 | Round 7 | 🇳🇱 Netherlands | 13 | 2♥ | ♥6 | = | · |
| -0.6 | Round 10 | 🇵🇱 Poland | 16 | 2♥ | ♦3 | -1 | · |
| -0.7 | Round 10 | 🇵🇱 Poland | 15 | 4♥ | ♦9 | +1 | · |
| -0.7 | Round 15 | 🇮🇱 Israel | 13 | 6♥ | ♠8 | = | · |
| -0.9 | Round 11 | 🇨🇦 Canada | 30 | 3♣ | ♠J | -3 | · |
| -0.9 | Round 15 | 🇮🇱 Israel | 12 | 3♦x | ♠J | -1 | · |
| -1.0 | Round 5 | 🏴 England | 27 | 4♠ | ♥4 | -2 | · |
| -1.1 | Round 1 | 🇺🇸 USA 1 | 7 | 1N | ♥3 | +1 | · |
| -1.1 | Round 6 | 🇸🇪 Sweden | 10 | 2♥ | ♦2 | +1 | · |
| -1.1 | Round 14 | 🇦🇺 Australia | 6 | 6♠ | ♥J | = | · |
| -1.3 | Round 7 | 🇳🇱 Netherlands | 17 | 4♥ | ♠2 | +2 | · |
| -1.3 | Round 8 | 🇺🇾 Uruguay | 27 | 4♦ | ♥A | = | · |
| -1.3 | Round 13 | 🇫🇷 France | 15 | 4♥ | ♦J | +1 | · |
| -1.3 | Round 13 | 🇫🇷 France | 17 | 4♠ | ♦K | = | · |
| -1.3 | Round 14 | 🇦🇺 Australia | 3 | 4♣ | ♠6 | -1 | · |
| -1.4 | Round 3 | 🇹🇼 Chinese Taipei | 29 | 5♥ | ♠5 | -1 | · |
| -1.4 | Round 14 | 🇦🇺 Australia | 2 | 4♠ | ♥8 | -1 | · |
| -1.5 | Round 10 | 🇵🇱 Poland | 19 | 3♣ | ♦8 | +1 | · |
| -1.6 | Round 10 | 🇵🇱 Poland | 14 | 1N | ♥6 | -1 | · |
| -1.7 | Round 10 | 🇵🇱 Poland | 17 | 5♥ | ♦9 | +1 | · |
| -1.7 | Round 10 | 🇵🇱 Poland | 18 | 4♦ | ♥7 | +1 | · |
| -1.8 | Round 7 | 🇳🇱 Netherlands | 14 | 1N | ♣2 | = | · |
| -2.3 | Round 1 | 🇺🇸 USA 1 | 4 | 2N | ♣K | = | · |
| -2.3 | Round 11 | 🇨🇦 Canada | 27 | 2N | ♥K | +1 | · |
| -2.3 | Round 14 | 🇦🇺 Australia | 5 | 4♠ | ♠6 | +1 | · |
| -2.6 | Round 14 | 🇦🇺 Australia | 4 | 4♠ | ♦5 | +1 | · |
| -2.7 | Round 7 | 🇳🇱 Netherlands | 16 | 3♣ | ♥8 | -1 | · |
| -2.8 | Round 7 | 🇳🇱 Netherlands | 19 | 1N | ♠8 | -1 | · |
| -2.9 | Round 15 | 🇮🇱 Israel | 20 | 4♠ | ♥K | +2 | · |
| -3.0 | Round 6 | 🇸🇪 Sweden | 9 | 1N | ♠4 | +1 | · |
| -3.0 | Round 13 | 🇫🇷 France | 13 | 1♠ | ♣4 | = | · |
| -3.0 | Round 13 | 🇫🇷 France | 14 | 4♥ | ♣2 | +1 | · |
| -3.1 | Round 5 | 🏴 England | 21 | 2♠ | ♦4 | +3 | · |
| -3.4 | Round 15 | 🇮🇱 Israel | 19 | 4♥ | ♠6 | +1 | · |
| -3.6 | Round 3 | 🇹🇼 Chinese Taipei | 30 | 2♥ | ♣J | +1 | · |
| -3.9 | Round 13 | 🇫🇷 France | 12 | 3♥ | ♦3 | -2 | · |
| -4.1 | Round 5 | 🏴 England | 25 | 5♦ | ♥K | = | · |
| -4.1 | Round 11 | 🇨🇦 Canada | 26 | 3N | ♣8 | = | · |
| -4.4 | Round 6 | 🇸🇪 Sweden | 5 | 5♦ | ♠A | = | · |
| -4.4 | Round 11 | 🇨🇦 Canada | 21 | 4♦x | ♠K | -1 | · |
| -4.7 | Round 15 | 🇮🇱 Israel | 11 | 5♣ | ♦A | = | · |
| -4.8 | Round 8 | 🇺🇾 Uruguay | 24 | 2N | ♥2 | +1 | · |
| -4.9 | Round 13 | 🇫🇷 France | 20 | 2♣ | ♦J | = | · |
| -5.0 | Round 11 | 🇨🇦 Canada | 23 | 2♥ | ♣5 | = | · |
| -5.7 | Round 13 | 🇫🇷 France | 16 | 1N | ♣3 | +2 | · |
| -5.7 | Round 15 | 🇮🇱 Israel | 14 | 3♠ | ♠6 | +2 | · |
| -5.8 | Round 6 | 🇸🇪 Sweden | 3 | 3♠ | ♣4 | +2 | · |
| -5.8 | Round 6 | 🇸🇪 Sweden | 6 | 1N | ♥2 | = | · |
| -6.9 | Round 8 | 🇺🇾 Uruguay | 23 | 4♥ | ♣Q | +2 | · |
| -7.2 | Round 13 | 🇫🇷 France | 11 | 3♥x | ♦A | -3 | · |
| -7.7 | Round 3 | 🇹🇼 Chinese Taipei | 24 | 4♥ | ♣Q | +1 | · |
| -7.7 | Round 7 | 🇳🇱 Netherlands | 18 | 4♠ | ♠9 | +1 | · |
| -7.8 | Round 11 | 🇨🇦 Canada | 28 | 4♠ | ♣6 | = | · |
| -8.3 | Round 8 | 🇺🇾 Uruguay | 30 | 5♦ | ♠Q | -2 | · |
| -9.4 | Round 14 | 🇦🇺 Australia | 9 | 1Nx | ♥4 | +2 | · |
| -9.8 | Round 15 | 🇮🇱 Israel | 15 | 4♠ | ♠3 | = | · |
| -9.9 | Round 6 | 🇸🇪 Sweden | 4 | 2♠x | ♣A | = | · |
| -13.7 | Round 3 | 🇹🇼 Chinese Taipei | 22 | 2♥x | ♣A | = | · |