CHEN Yunlong · CHINA OPEN 2
157rank
-5.2Butler · 70 bds
-0.07per board
±4.1swing
-0.40vs par /bd
+0.04adjusted /bd
by round
vs par split: bidding -0.87 · play +0.47
Strength of schedule: opponents averaged +0.12/bd (a tough draw) → opponent-adjusted +0.04/bd
Card play — on target: opening leads 85.7% · declarer play 85.0% · defence 89.3%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 85.7% (14) |
| Declarer play | 100.0% (4) | 81.2% (16) |
| Defence | 100.0% (1) | 88.9% (27) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 100.0% (1) · ♦ 100.0% (4) · ♣ 66.7% (3)
vs par by strain: NT -3.64 (14) · a suit +0.41 (56)
vs par by level: part-score +0.03 (29) · game -1.37 (35) · slam +3.17 (6)
By role: declaring +0.19/bd (-1.41 vs par · 42) · defending -0.47/bd (+1.11 vs par · 28)
By vulnerability: vulnerable -0.37/bd (+0.34 vs par · 35) · not vulnerable +0.23/bd (-1.14 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 64 | J.Zhao | M.Fleisher – C.Martel | Open | 14 | +5.3 | +0.38 | +1.64 |
| Round of 64 | J.Zhao | M.Fleisher – C.Martel | Open | 14 | +1.4 | +0.10 | +0.29 |
| Round of 32 | J.Zhao | A.Majcher – P.Marcinowski | Open | 14 | -0.4 | -0.03 | -1.86 |
| Round of 32 | J.Zhao | A.Majcher – P.Marcinowski | Open | 14 | +6.6 | +0.47 | -0.07 |
| Round of 32 | J.Zhao | P.Marcinowski – A.Majcher | Open | 14 | -18.1 | -1.29 | -2.00 |
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 |
|---|---|---|---|---|---|---|---|
| +9.4 | Round of 32 | POLAND JUNIORS | 20 | 4♠x | ♣8 | = | +12 |
| +8.8 | Round of 32 | POLAND JUNIORS | 37 | 5♣x | ♥A | = | +12 |
| +8.1 | Round of 64 | FLEISHER | 16 | 7♦ | ♠K | -2 | +14 |
| +8.1 | Round of 32 | POLAND JUNIORS | 49 | 4♠ | ♥3 | = | +6 |
| +6.0 | Round of 64 | FLEISHER | 23 | 6♦ | ♥2 | -1 | +13 |
| +5.0 | Round of 64 | FLEISHER | 27 | 3♠ | ♣Q | = | +10 |
| +4.7 | Round of 64 | FLEISHER | 31 | 5♦ | ♠K | = | +0 |
| +4.3 | Round of 32 | POLAND JUNIORS | 18 | 3NT | ♠Q | +4 | +2 |
| +4.0 | Round of 64 | FLEISHER | 41 | 2♥ | ♠4 | -3 | +4 |
| +4.0 | Round of 32 | POLAND JUNIORS | 42 | 5♦ | ♣K | = | -1 |
| +3.7 | Round of 64 | FLEISHER | 36 | 3♣ | ♣2 | -3 | +6 |
| +3.7 | Round of 32 | POLAND JUNIORS | 53 | 2♣ | ♥3 | +1 | -1 |
| +3.5 | Round of 32 | POLAND JUNIORS | 34 | 3♠ | ♦K | -2 | +0 |
| +3.3 | Round of 64 | FLEISHER | 35 | 3♠ | ♦2 | -1 | -1 |
| +2.9 | Round of 64 | FLEISHER | 15 | 3♠ | ♦7 | -1 | +5 |
| +2.9 | Round of 32 | POLAND JUNIORS | 29 | 1NT | ♥Q | = | +5 |
| +2.8 | Round of 32 | POLAND JUNIORS | 27 | 3♦ | ♦5 | = | +0 |
| +2.2 | Round of 64 | FLEISHER | 17 | 5♣ | ♠K | -1 | +4 |
| +2.0 | Round of 32 | POLAND JUNIORS | 17 | 3NT | ♠5 | +2 | +0 |
| +2.0 | Round of 32 | POLAND JUNIORS | 50 | 4♥ | ♥6 | +1 | +1 |
| +1.8 | Round of 32 | POLAND JUNIORS | 32 | 3♥x | ♠9 | -2 | +9 |
| +1.8 | Round of 32 | POLAND JUNIORS | 36 | 4♠ | ♣A | +1 | +4 |
| +1.8 | Round of 32 | POLAND JUNIORS | 43 | 4♥ | ♣3 | -2 | -5 |
| +1.5 | Round of 32 | POLAND JUNIORS | 41 | 3♥ | ♣7 | = | -10 |
| +1.4 | Round of 32 | POLAND JUNIORS | 30 | 1NT | ♣5 | +3 | -6 |
| +1.3 | Round of 32 | POLAND JUNIORS | 15 | 3NT | ♣5 | +2 | +0 |
| +1.1 | Round of 64 | FLEISHER | 34 | 6♠ | ♣5 | -1 | +10 |
| +0.8 | Round of 32 | POLAND JUNIORS | 54 | 5♣ | ♠K | -1 | +12 |
| +0.7 | Round of 32 | POLAND JUNIORS | 52 | 1NT | ♠7 | = | -1 |
| +0.5 | Round of 32 | POLAND JUNIORS | 21 | 3NT | ♠9 | +2 | -10 |
| +0.5 | Round of 32 | POLAND JUNIORS | 26 | 3NT | ♠J | +2 | +0 |
| +0.5 | Round of 32 | POLAND JUNIORS | 35 | 2♠ | ♥J | +1 | +1 |
| +0.4 | Round of 64 | FLEISHER | 19 | 4♠ | ♥K | +1 | +0 |
| +0.1 | Round of 64 | FLEISHER | 18 | 1NT | ♣Q | +1 | -1 |
| +0.1 | Round of 64 | FLEISHER | 26 | 4♠ | ♥5 | +1 | +0 |
| +0.1 | Round of 64 | FLEISHER | 38 | 4♥ | ♣J | +1 | +0 |
| -0.1 | Round of 64 | FLEISHER | 30 | 4♠ | ♠7 | = | +0 |
| -0.2 | Round of 32 | POLAND JUNIORS | 28 | 3NT | ♣K | -1 | -10 |
| -0.4 | Round of 64 | FLEISHER | 39 | 3♣ | ♥K | -1 | +3 |
| -0.4 | Round of 32 | POLAND JUNIORS | 39 | 2♠ | ♥Q | -1 | -1 |
| -0.4 | Round of 32 | POLAND JUNIORS | 45 | 1NTx | ♦7 | -1 | +1 |
| -0.5 | Round of 64 | FLEISHER | 42 | 2♠ | ♥8 | = | +1 |
| -0.6 | Round of 32 | POLAND JUNIORS | 33 | 2♥ | ♦4 | -2 | +0 |
| -0.7 | Round of 32 | POLAND JUNIORS | 19 | 2♥ | ♦A | +1 | +0 |
| -0.9 | Round of 64 | FLEISHER | 40 | 4♠ | ♥5 | +2 | -11 |
| -1.1 | Round of 32 | POLAND JUNIORS | 24 | 3♣ | ♥A | = | +0 |
| -1.4 | Round of 64 | FLEISHER | 28 | 3NT | ♠3 | -1 | -10 |
| -1.6 | Round of 64 | FLEISHER | 20 | 1♠x | ♥K | -1 | -2 |
| -1.7 | Round of 32 | POLAND JUNIORS | 55 | 4♥ | ♠K | -2 | -5 |
| -1.8 | Round of 32 | POLAND JUNIORS | 16 | 4♠ | ♦8 | -1 | -6 |
| -1.9 | Round of 64 | FLEISHER | 25 | 2♠ | ♠2 | +2 | -1 |
| -2.2 | Round of 64 | FLEISHER | 21 | 4♠x | ♥8 | -2 | +5 |
| -2.2 | Round of 32 | POLAND JUNIORS | 22 | 4♥ | ♠A | +1 | +0 |
| -2.3 | Round of 64 | FLEISHER | 33 | 3♣ | ♠10 | = | +0 |
| -2.5 | Round of 32 | POLAND JUNIORS | 51 | 4♠ | ♥J | -1 | -6 |
| -2.8 | Round of 32 | POLAND JUNIORS | 56 | 6NT | ♠8 | +1 | -11 |
| -2.9 | Round of 64 | FLEISHER | 37 | 3♥ | ♠3 | = | -1 |
| -4.0 | Round of 64 | FLEISHER | 24 | 3♣ | ♠8 | -1 | -5 |
| -4.0 | Round of 64 | FLEISHER | 32 | 5♦x | ♥A | -1 | -2 |
| -4.4 | Round of 64 | FLEISHER | 29 | 4♠x | ♥K | = | -5 |
| -5.0 | Round of 32 | POLAND JUNIORS | 40 | 6♠ | ♦Q | = | +0 |
| -5.5 | Round of 32 | POLAND JUNIORS | 38 | 2♣ | ♣10 | = | -5 |
| -5.7 | Round of 32 | POLAND JUNIORS | 47 | 4♠x | ♦2 | +1 | -6 |
| -6.1 | Round of 32 | POLAND JUNIORS | 44 | 4♥x | ♣3 | +1 | -6 |
| -6.8 | Round of 32 | POLAND JUNIORS | 48 | 4♠x | ♦A | -2 | +3 |
| -7.1 | Round of 32 | POLAND JUNIORS | 25 | 6♦ | ♠A | -4 | -7 |
| -8.1 | Round of 32 | POLAND JUNIORS | 23 | 5♠x | ♦A | -2 | -7 |
| -8.1 | Round of 32 | POLAND JUNIORS | 31 | 4♠x | ♣A | -3 | -9 |
| -8.4 | Round of 64 | FLEISHER | 22 | 2♦ | ♦2 | -4 | -9 |
| -9.2 | Round of 32 | POLAND JUNIORS | 46 | 3NT | ♥6 | -1 | -10 |