LI Jingfeng · BLACK EARTH GOD DUCK BRIDGE CL
644rank
-19.2Butler · 7 bds
-2.74per board
±5.7swing
-3.00vs par /bd
-2.47adjusted /bd
by round
vs par split: bidding -1.29 · play -1.71
Strength of schedule: opponents averaged +0.27/bd (a tough draw) → opponent-adjusted -2.47/bd
Card play — on target: opening leads 100.0% · declarer play 0.0% · defence 100.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 100.0% (1) |
| Declarer play | 0.0% (1) | · |
| Defence | 100.0% (1) | 100.0% (2) |
Opening leads by suit led: ♥ 100.0% (1)
vs par by strain: NT +1.50 (2) · a suit -4.80 (5)
vs par by level: part-score -4.80 (5) · game +1.50 (2)
By role: declaring -5.50/bd (-9.25 vs par · 4) · defending +0.93/bd (+5.33 vs par · 3)
By vulnerability: vulnerable -0.20/bd (+2.33 vs par · 3) · not vulnerable -4.65/bd (-7.00 vs par · 4)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 7 | H.Liu | J.Liu – Y.Wang | Open | 7 | -19.2 | -2.74 | -3.00 |
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 |
|---|---|---|---|---|---|---|---|
| +3.5 | Round 7 | TIANJIN COM-JADEITE | 19 | 3♣ | ♥5 | -1 | +5 |
| +2.6 | Round 7 | TIANJIN COM-JADEITE | 21 | 2♠ | ♣7 | +1 | +0 |
| -0.3 | Round 7 | TIANJIN COM-JADEITE | 17 | 2♠ | ♥3 | +2 | -1 |
| -0.4 | Round 7 | TIANJIN COM-JADEITE | 20 | 3NT | ♦7 | +3 | +12 |
| -3.7 | Round 7 | TIANJIN COM-JADEITE | 16 | 3♦ | ♠10 | +2 | -10 |
| -6.5 | Round 7 | TIANJIN COM-JADEITE | 18 | 3NT | ♥5 | -5 | -9 |
| -14.4 | Round 7 | TIANJIN COM-JADEITE | 15 | 3♣x | ♦K | -4 | -18 |