KOBAYASHI Koki · JAPAN
vs par split: bidding -0.07 · play +0.12
Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted +0.11/bd
Card play — on target: opening leads 88.9% #10 of 78 · declarer play 64.3% #55 of 78 · defence 90.5% #23 of 78
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 100.0% (5) |
| Declarer play | 66.7% (3) | 63.6% (11) |
| Defence | 100.0% (6) | 86.7% (15) |
Opening leads by suit led: ♠ 50.0% (2) · ♥ 100.0% (4) · ♦ 100.0% (2) · ♣ 100.0% (1)
vs par by strain: NT +1.46 (11) · a suit -0.48 (29)
vs par by level: part-score +0.42 (19) · game -0.30 (20) · slam +0.00 (1)
By role: declaring +1.32/bd (-0.74 vs par · 19) · defending -1.02/bd (+0.76 vs par · 21)
By vulnerability: vulnerable -0.60/bd (-0.50 vs par · 20) · not vulnerable +0.79/bd (+0.60 vs par · 20)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | H.Tanabe | T.Sanchez – G.Lafont | Open | 10 | +29.8 | +2.98 | +0.60 |
| Round 2 | H.Tanabe | A.Mijic – J.Djilovic | Closed | 10 | -16.1 | -1.61 | -3.30 |
| Round 4 | H.Tanabe | Y.Huang – B.Chen | Closed | 10 | -1.7 | -0.17 | +1.90 |
| Round 5 | H.Tanabe | A.Hudson – C.Jolly | Open | 10 | -8.3 | -0.83 | +1.00 |
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 |
|---|---|---|---|---|---|---|---|
| +9.6 | Round 5 | COOKIE POTTER | 12 | 7♥ | ♠10 | = | +0 |
| +7.5 | Round 1 | FRANCE | 5 | 4♠ | ♥A | = | +7 |
| +6.4 | Round 4 | ZHIHAOLE | 2 | 3NT | ♣A | -2 | +8 |
| +5.7 | Round 4 | ZHIHAOLE | 9 | 1NT | ♣A | = | +13 |
| +4.6 | Round 1 | FRANCE | 7 | 2♠ | ♣J | = | +0 |
| +4.5 | Round 1 | FRANCE | 6 | 5♦x | ♥Q | -1 | +6 |
| +4.1 | Round 1 | FRANCE | 9 | 4♠ | ♠9 | -3 | +7 |
| +4.1 | Round 4 | ZHIHAOLE | 3 | 1NT | ♥5 | +1 | +6 |
| +3.6 | Round 1 | FRANCE | 3 | 3NT | ♠7 | = | -1 |
| +2.9 | Round 4 | ZHIHAOLE | 8 | 2♠ | ♦J | +5 | +4 |
| +2.8 | Round 5 | COOKIE POTTER | 15 | 2♠ | ♦Q | +1 | +11 |
| +2.7 | Round 2 | CROATIA | 14 | 4♠ | ♠3 | = | -1 |
| +2.4 | Round 1 | FRANCE | 2 | 4♥ | ♣5 | -1 | -5 |
| +2.4 | Round 1 | FRANCE | 8 | 3NT | ♦2 | -2 | +0 |
| +1.8 | Round 1 | FRANCE | 1 | 2NT | ♥4 | -1 | -2 |
| +1.5 | Round 1 | FRANCE | 10 | 3♣ | ♠J | = | +0 |
| +1.1 | Round 2 | CROATIA | 13 | 1♥ | ♠J | +1 | +1 |
| +1.0 | Round 5 | COOKIE POTTER | 13 | 3♦ | ♣K | +1 | +0 |
| +0.9 | Round 2 | CROATIA | 18 | 1NT | ♥2 | = | +5 |
| +0.7 | Round 5 | COOKIE POTTER | 16 | 2♦ | ♥6 | +2 | +0 |
| +0.1 | Round 2 | CROATIA | 17 | 4♥ | ♣Q | = | +0 |
| -0.0 | Round 4 | ZHIHAOLE | 6 | 1NT | ♦5 | = | -2 |
| -0.3 | Round 5 | COOKIE POTTER | 14 | 4♠ | ♣J | +2 | +11 |
| -0.4 | Round 2 | CROATIA | 12 | 1NT | ♠5 | +1 | +1 |
| -1.1 | Round 4 | ZHIHAOLE | 5 | 4♠ | ♣J | = | -1 |
| -1.1 | Round 5 | COOKIE POTTER | 11 | 4♠ | ♣K | = | +0 |
| -1.7 | Round 4 | ZHIHAOLE | 7 | 2♥ | ♠2 | +1 | +0 |
| -1.9 | Round 5 | COOKIE POTTER | 17 | 5♠ | ♦7 | = | +0 |
| -2.1 | Round 2 | CROATIA | 11 | 4♥ | ♦2 | +1 | -1 |
| -2.6 | Round 1 | FRANCE | 4 | 3♠ | ♥Q | = | -6 |
| -3.1 | Round 5 | COOKIE POTTER | 18 | 3NT | ♦K | -1 | -5 |
| -3.3 | Round 2 | CROATIA | 16 | 4♥ | ♦7 | -2 | -8 |
| -3.5 | Round 4 | ZHIHAOLE | 4 | 4♠ | ♥K | +1 | +0 |
| -3.7 | Round 2 | CROATIA | 15 | 4♠ | ♦6 | = | -11 |
| -4.1 | Round 2 | CROATIA | 20 | 5♠ | ♥A | -1 | -12 |
| -4.5 | Round 4 | ZHIHAOLE | 10 | 4♠ | ♥J | +1 | +0 |
| -4.9 | Round 5 | COOKIE POTTER | 20 | 2♠x | ♣10 | -2 | +4 |
| -7.3 | Round 2 | CROATIA | 19 | 1NTx | ♠6 | +2 | -7 |
| -10.0 | Round 4 | ZHIHAOLE | 1 | 2♠x | ♥10 | = | -9 |
| -11.1 | Round 5 | COOKIE POTTER | 19 | 3♣ | ♦5 | -2 | -11 |