CHEN Simin · SHANGHAI YOUTH 3
587rank
-37.4Butler · 100 bds
-0.37per board
±4.4swing
-0.09vs par /bd · #371/672
-0.56adjusted /bd
by round
vs par split: bidding -0.57 · play +0.28
Strength of schedule: opponents averaged -0.18/bd (an easy draw) → opponent-adjusted -0.56/bd
Card play — on target: opening leads 78.3% #430 of 671 · declarer play 69.2% #516 of 671 · defence 82.9% #433 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 78.3% (23) |
| Declarer play | · | 69.2% (13) |
| Defence | · | 82.9% (35) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 60.0% (5) · ♦ 77.8% (9) · ♣ 83.3% (6)
vs par by strain: a suit -0.14 (66)
vs par by level: part-score +1.62 (32) · game -2.59 (29) · slam +2.80 (5)
By role: declaring +0.56/bd (-0.74 vs par · 46) · defending -1.17/bd (+0.46 vs par · 54)
By vulnerability: vulnerable -0.10/bd (+0.06 vs par · 50) · not vulnerable -0.65/bd (-0.24 vs par · 50)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Jiang | S.Wang – X.Liu | Open | 10 | +24.1 | +2.41 | +4.10 |
| Round 3 | Y.Jiang | J.George – J.Bojoh | Open | 10 | -19.3 | -1.93 | -4.00 |
| Round 4 | Y.Jiang | A.Versace – E.Bove | Closed | 10 | +17.3 | +1.73 | +2.00 |
| Round 6 | Y.Jiang | H.Drenkelford – J.Van Cleeff | Open | 10 | -15.1 | -1.51 | -0.50 |
| Round 7 | Y.Jiang | S.O'Lubaigh – P.Delaney | Closed | 10 | -15.0 | -1.50 | -0.70 |
| Round 8 | Y.Jiang | J.Zhang – W.Han | Closed | 10 | -2.4 | -0.24 | +0.20 |
| Round 9 | Y.Jiang | J.Goenka – S.Iyengar | Closed | 10 | +2.7 | +0.27 | +1.00 |
| Round 10 | Y.Jiang | Z.Chen – C.Wang | Open | 10 | -13.6 | -1.36 | +0.20 |
| Round 11 | Y.Jiang | S.Thadani – M.Karmarkar | Closed | 10 | +12.0 | +1.20 | +0.90 |
| Round 12 | Y.Jiang | T.Binderkrantz – N.Bekkouche | Open | 10 | -28.1 | -2.81 | -4.10 |
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 |
|---|---|---|---|---|---|---|---|
| +11.6 | Round 1 | SHANGHAI YOUTH 2 | 9 | 6N | ♥10 | -1 | +13 |
| +11.2 | Round 11 | SECOND CHANCE | 20 | 6♣ | ♠9 | = | -2 |
| +10.1 | Round 4 | LEONINA | 8 | 2Nx | ♦4 | +1 | +10 |
| +8.9 | Round 1 | SHANGHAI YOUTH 2 | 3 | 6♦x | ♠A | -1 | +13 |
| +7.4 | Round 4 | LEONINA | 4 | 4♠ | ♥J | = | +0 |
| +7.0 | Round 8 | BLUEMAROON | 11 | 2♠ | ♥A | +1 | +10 |
| +6.8 | Round 11 | SECOND CHANCE | 16 | 6♠ | ♦9 | -1 | +13 |
| +5.8 | Round 11 | SECOND CHANCE | 17 | 3♦ | ♥3 | -5 | +4 |
| +4.6 | Round 1 | SHANGHAI YOUTH 2 | 4 | 2♠ | ♥10 | = | +6 |
| +4.6 | Round 9 | INDIA RED | 29 | 1♠ | ♥K | = | +5 |
| +4.5 | Round 4 | LEONINA | 1 | 5♦ | ♦8 | -4 | +7 |
| +4.5 | Round 9 | INDIA RED | 25 | 3N | ♠5 | -2 | +8 |
| +4.5 | Round 10 | WONDERS INFO | 1 | 2♦x | ♥J | = | +6 |
| +3.9 | Round 7 | DELANEY | 2 | 2♦ | ♠K | -2 | +6 |
| +3.7 | Round 9 | INDIA RED | 21 | 3N | ♣2 | = | +5 |
| +3.6 | Round 11 | SECOND CHANCE | 14 | 3♦ | ♥K | +2 | +15 |
| +3.4 | Round 1 | SHANGHAI YOUTH 2 | 2 | 3♠x | ♥2 | -3 | +5 |
| +3.4 | Round 8 | BLUEMAROON | 12 | 3N | ♣10 | -2 | +6 |
| +3.3 | Round 3 | INDONESIA OPEN | 30 | 3N | ♦4 | = | -6 |
| +3.1 | Round 12 | FIREWORKS | 27 | 4♥ | ♠A | +1 | -5 |
| +2.7 | Round 8 | BLUEMAROON | 20 | 3N | ♦2 | +1 | +0 |
| +2.3 | Round 4 | LEONINA | 10 | 2N | ♠6 | = | +0 |
| +2.3 | Round 10 | WONDERS INFO | 8 | 3♠ | ♦A | = | +6 |
| +2.1 | Round 1 | SHANGHAI YOUTH 2 | 7 | 3♥ | ♦4 | +1 | +10 |
| +1.8 | Round 1 | SHANGHAI YOUTH 2 | 5 | 4♠ | ♣7 | -1 | +5 |
| +1.7 | Round 1 | SHANGHAI YOUTH 2 | 6 | 2N | ♣5 | = | +1 |
| +1.6 | Round 10 | WONDERS INFO | 2 | 2N | ♣6 | +2 | +6 |
| +1.5 | Round 9 | INDIA RED | 27 | 1♦x | ♥A | -1 | -1 |
| +1.3 | Round 9 | INDIA RED | 28 | 3N | ♠K | +2 | -4 |
| +1.2 | Round 11 | SECOND CHANCE | 13 | 2♥ | ♣2 | = | +1 |
| +1.1 | Round 6 | VENTIN | 26 | 4♠ | ♥Q | = | +5 |
| +1.1 | Round 8 | BLUEMAROON | 16 | 2♠ | ♥2 | +1 | +0 |
| +1.0 | Round 3 | INDONESIA OPEN | 25 | 2♠ | ♦5 | -1 | +1 |
| +1.0 | Round 4 | LEONINA | 5 | 1N | ♦5 | -1 | -1 |
| +1.0 | Round 10 | WONDERS INFO | 4 | 2♠ | ♥3 | -1 | +5 |
| +0.9 | Round 8 | BLUEMAROON | 15 | 2♥ | ♦Q | = | -1 |
| +0.8 | Round 7 | DELANEY | 9 | 4♥ | ♠8 | +2 | -11 |
| +0.8 | Round 12 | FIREWORKS | 21 | 4♠ | ♦A | -1 | +0 |
| +0.7 | Round 8 | BLUEMAROON | 14 | 3♦ | ♥9 | -1 | +2 |
| +0.5 | Round 9 | INDIA RED | 30 | 4♥ | ♦10 | -2 | -1 |
| +0.5 | Round 10 | WONDERS INFO | 6 | 4♠ | ♣A | = | +0 |
| +0.3 | Round 4 | LEONINA | 7 | 1N | ♥2 | = | +2 |
| +0.3 | Round 10 | WONDERS INFO | 5 | 4♠ | ♣3 | +2 | +11 |
| +0.2 | Round 6 | VENTIN | 27 | 4♥ | ♦K | -1 | +5 |
| +0.2 | Round 7 | DELANEY | 4 | 4♥ | ♣4 | = | +1 |
| -0.0 | Round 6 | VENTIN | 28 | 3N | ♣2 | +2 | +0 |
| +0.0 | Round 7 | DELANEY | 3 | 1N | ♣K | -2 | +9 |
| +0.0 | Round 10 | WONDERS INFO | 10 | 2♠ | ♣5 | = | +0 |
| -0.1 | Round 7 | DELANEY | 1 | 4♥ | ♦7 | = | -1 |
| -0.2 | Round 1 | SHANGHAI YOUTH 2 | 10 | 3N | ♦2 | +1 | +4 |
| -0.2 | Round 6 | VENTIN | 22 | 2♠ | ♦A | = | -5 |
| -0.3 | Round 3 | INDONESIA OPEN | 21 | 2N | ♣9 | = | -1 |
| -0.3 | Round 3 | INDONESIA OPEN | 22 | 3N | ♥2 | = | -5 |
| -0.5 | Round 3 | INDONESIA OPEN | 29 | 3N | ♥K | = | +2 |
| -0.5 | Round 6 | VENTIN | 29 | 1N | ♣K | +1 | +0 |
| -0.5 | Round 12 | FIREWORKS | 23 | 5♦ | ♠A | -1 | -6 |
| -0.7 | Round 7 | DELANEY | 10 | 2♥ | ♣Q | +1 | +0 |
| -0.8 | Round 12 | FIREWORKS | 25 | 3N | ♥2 | +2 | -6 |
| -0.9 | Round 4 | LEONINA | 2 | 3N | ♣4 | +2 | -1 |
| -0.9 | Round 8 | BLUEMAROON | 13 | 4♠ | ♠2 | +2 | -7 |
| -1.1 | Round 7 | DELANEY | 5 | 6♦ | ♥6 | -2 | +0 |
| -1.1 | Round 9 | INDIA RED | 23 | 1N | ♥4 | +2 | -1 |
| -1.2 | Round 11 | SECOND CHANCE | 19 | 4♠ | ♣J | +1 | -1 |
| -1.5 | Round 4 | LEONINA | 3 | 3N | ♥9 | +1 | +1 |
| -1.5 | Round 11 | SECOND CHANCE | 12 | 2N | ♣4 | +1 | -10 |
| -1.6 | Round 12 | FIREWORKS | 29 | 2♥ | ♠A | = | +0 |
| -1.9 | Round 9 | INDIA RED | 24 | 4♥ | ♦4 | +1 | +5 |
| -2.0 | Round 11 | SECOND CHANCE | 18 | 3♠ | ♥6 | -1 | +0 |
| -2.1 | Round 6 | VENTIN | 23 | 3♦ | ♣J | -2 | -2 |
| -2.1 | Round 6 | VENTIN | 30 | 3N | ♠2 | -2 | -6 |
| -2.3 | Round 3 | INDONESIA OPEN | 23 | 4♠ | ♣10 | +1 | +0 |
| -2.5 | Round 8 | BLUEMAROON | 18 | 2♠ | ♦Q | +1 | -1 |
| -2.6 | Round 4 | LEONINA | 6 | 4♣x | ♠Q | -2 | +8 |
| -2.7 | Round 6 | VENTIN | 24 | 2N | ♠K | = | +0 |
| -2.7 | Round 9 | INDIA RED | 26 | 1N | ♣5 | +2 | +0 |
| -3.1 | Round 12 | FIREWORKS | 28 | 2♠ | ♦K | +1 | -7 |
| -3.2 | Round 12 | FIREWORKS | 26 | 3♥ | ♣8 | = | +0 |
| -3.3 | Round 1 | SHANGHAI YOUTH 2 | 1 | 2♠ | ♦8 | -1 | -9 |
| -3.3 | Round 4 | LEONINA | 9 | 1N | ♠4 | +1 | -6 |
| -3.3 | Round 6 | VENTIN | 25 | 1♥ | ♠6 | +2 | +0 |
| -3.4 | Round 8 | BLUEMAROON | 17 | 3N | ♦Q | +3 | +4 |
| -3.4 | Round 11 | SECOND CHANCE | 11 | 3N | ♣J | +1 | +0 |
| -4.1 | Round 3 | INDONESIA OPEN | 27 | 5♣x | ♠2 | -1 | -6 |
| -4.2 | Round 3 | INDONESIA OPEN | 26 | 4♠ | ♦Q | = | -8 |
| -4.6 | Round 7 | DELANEY | 6 | 5♣x | ♦K | -4 | -4 |
| -4.7 | Round 7 | DELANEY | 7 | 3♠ | ♥4 | +1 | -1 |
| -4.8 | Round 10 | WONDERS INFO | 7 | 2♦ | ♠K | = | -11 |
| -5.4 | Round 12 | FIREWORKS | 24 | 3♠ | ♣7 | = | +0 |
| -5.5 | Round 6 | VENTIN | 21 | 5♣x | ♣K | -2 | -2 |
| -5.6 | Round 3 | INDONESIA OPEN | 24 | 3N | ♥4 | -2 | -6 |
| -6.3 | Round 3 | INDONESIA OPEN | 28 | 4♥ | ♦7 | -1 | -11 |
| -6.5 | Round 1 | SHANGHAI YOUTH 2 | 8 | 3N | ♦4 | = | -7 |
| -7.7 | Round 9 | INDIA RED | 22 | 4♠ | ♦6 | +1 | -6 |
| -8.2 | Round 10 | WONDERS INFO | 9 | 4♥x | ♠4 | = | -10 |
| -8.5 | Round 11 | SECOND CHANCE | 15 | 4♠ | ♣A | +2 | -11 |
| -8.5 | Round 12 | FIREWORKS | 22 | 6♣x | ♥A | -2 | -10 |
| -8.7 | Round 7 | DELANEY | 8 | 5♦x | ♦8 | = | -6 |
| -8.9 | Round 12 | FIREWORKS | 30 | 4♥ | ♠6 | = | -7 |
| -10.8 | Round 10 | WONDERS INFO | 3 | 4♥ | ♥2 | +2 | -11 |
| -11.4 | Round 8 | BLUEMAROON | 19 | 3N | ♦6 | +1 | -11 |