YAMADA Kazuhiko · JAPAN SENIORS
vs par split: bidding +0.55 · play +0.44
Strength of schedule: opponents averaged +0.27/bd (a tough draw) → opponent-adjusted +0.19/bd
Card play — on target: opening leads 88.0% #14 of 148 · declarer play 92.9% #4 of 148 · defence 90.4% #24 of 148
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 85.7% (7) | 88.9% (18) |
| Declarer play | 100.0% (4) | 90.0% (10) |
| Defence | 100.0% (16) | 86.1% (36) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 88.9% (9) · ♦ 100.0% (5) · ♣ 100.0% (5)
vs par by strain: NT +1.42 (26) · a suit +0.78 (54)
vs par by level: part-score +1.47 (36) · game +1.03 (38) · slam -2.17 (6)
By role: declaring +0.46/bd (-1.61 vs par · 28) · defending -0.36/bd (+2.38 vs par · 52)
By vulnerability: vulnerable -0.27/bd (+1.23 vs par · 40) · not vulnerable +0.12/bd (+0.75 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Ino | D.Stack – J.Russell | Closed | 10 | +1.2 | +0.12 | +2.50 |
| Round 2 | A.Omasa | K.Martens – M.Kwiecien | Closed | 10 | -12.1 | -1.21 | +1.50 |
| Round 5 | M.Ino | L.Griffey – R.Passal | Closed | 10 | -12.8 | -1.28 | +0.90 |
| Round 6 | A.Omasa | R.Marsal – H.Klumpp | Open | 10 | +7.2 | +0.72 | +2.00 |
| Round 7 | A.Omasa | C.Miner – R.Giragosian | Open | 10 | +4.9 | +0.49 | -2.60 |
| Round 8 | M.Ino | M.Zwerling – S.Elliott | Open | 10 | +5.7 | +0.57 | +0.50 |
| Round 9 | M.Ino | K.Kranyak – P.Becker | Open | 10 | -3.1 | -0.31 | +0.90 |
| Round 10 | M.Ino | F.Stewart – R.Lebi | Closed | 10 | +2.8 | +0.28 | +2.20 |
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 |
|---|---|---|---|---|---|---|---|
| +10.4 | Round 10 | SILVERMAN | 20 | 3♠ | ♦K | = | +13 |
| +10.3 | Round 8 | SIMSON | 21 | 3♦ | ♠J | -1 | +10 |
| +8.9 | Round 6 | GERMAN SENIORS | 4 | 3♥ | ♣K | +1 | +8 |
| +8.5 | Round 6 | GERMAN SENIORS | 10 | 3NT | ♣2 | -2 | +8 |
| +7.4 | Round 8 | SIMSON | 22 | 3NT | ♥2 | +1 | +1 |
| +7.3 | Round 7 | MCCONNELL | 17 | 6♣ | ♦9 | +1 | -11 |
| +6.6 | Round 7 | MCCONNELL | 12 | 3NT | ♣6 | = | +0 |
| +5.9 | Round 8 | SIMSON | 29 | 3NT | ♥J | -3 | +9 |
| +5.6 | Round 7 | MCCONNELL | 14 | 4♠ | ♥3 | -2 | +0 |
| +5.3 | Round 2 | MILNER | 17 | 4♥ | ♣6 | -3 | +6 |
| +5.1 | Round 5 | PREMO | 23 | 4♦ | ♣K | +1 | +7 |
| +4.3 | Round 2 | MILNER | 14 | 4♠ | ♥K | = | +11 |
| +3.9 | Round 9 | KRANYAK | 1 | 3NT | ♥J | -2 | +11 |
| +3.9 | Round 10 | SILVERMAN | 16 | 3NT | ♠5 | -1 | +6 |
| +3.7 | Round 1 | USARUSSELL | 5 | 4♥ | ♠6 | -1 | +5 |
| +3.7 | Round 1 | USARUSSELL | 8 | 2♣ | ♦2 | +1 | +5 |
| +3.7 | Round 6 | GERMAN SENIORS | 5 | 3NT | ♥6 | = | +7 |
| +3.0 | Round 5 | PREMO | 27 | 4♥ | ♥4 | -1 | +10 |
| +2.9 | Round 1 | USARUSSELL | 9 | 2♦ | ♣K | -2 | +5 |
| +2.6 | Round 1 | USARUSSELL | 1 | 2♠ | ♣6 | -1 | -2 |
| +2.2 | Round 7 | MCCONNELL | 19 | 4♦ | ♥9 | -3 | -8 |
| +2.0 | Round 9 | KRANYAK | 5 | 3♠ | ♥8 | -1 | -2 |
| +1.5 | Round 2 | MILNER | 11 | 3NT | ♥8 | -1 | +5 |
| +1.4 | Round 10 | SILVERMAN | 18 | 1NT | ♦10 | -2 | +0 |
| +1.2 | Round 7 | MCCONNELL | 13 | 1NT | ♣6 | -1 | +0 |
| +1.1 | Round 9 | KRANYAK | 6 | 2♥ | ♣5 | +2 | +1 |
| +1.1 | Round 10 | SILVERMAN | 17 | 2♥ | ♦5 | +1 | +0 |
| +0.8 | Round 6 | GERMAN SENIORS | 8 | 4♣ | ♥A | +2 | +15 |
| +0.6 | Round 9 | KRANYAK | 2 | 4♠ | ♦K | -1 | +5 |
| +0.5 | Round 1 | USARUSSELL | 10 | 2NT | ♣3 | -1 | +6 |
| +0.4 | Round 9 | KRANYAK | 9 | 4♠ | ♣2 | +1 | +1 |
| +0.3 | Round 5 | PREMO | 25 | 3NT | ♣6 | +2 | +0 |
| +0.2 | Round 10 | SILVERMAN | 12 | 2♠ | ♦5 | = | +1 |
| +0.1 | Round 5 | PREMO | 29 | 3NT | ♥7 | = | -1 |
| +0.1 | Round 8 | SIMSON | 28 | 1NT | ♥Q | = | +1 |
| +0.0 | Round 9 | KRANYAK | 4 | 4♥ | ♣A | +1 | +0 |
| -0.1 | Round 1 | USARUSSELL | 7 | 3♣ | ♥2 | +1 | +0 |
| -0.1 | Round 2 | MILNER | 12 | 2♣ | ♥Q | +2 | +0 |
| -0.1 | Round 6 | GERMAN SENIORS | 7 | 4♥ | ♠7 | +1 | +0 |
| -0.2 | Round 7 | MCCONNELL | 11 | 4♥ | ♠10 | +2 | +11 |
| -0.3 | Round 2 | MILNER | 18 | 3NT | ♥10 | +1 | -1 |
| -0.4 | Round 8 | SIMSON | 23 | 3NT | ♥2 | +1 | +0 |
| -0.6 | Round 1 | USARUSSELL | 6 | 3♦ | ♥2 | = | +0 |
| -0.6 | Round 6 | GERMAN SENIORS | 6 | 2♠ | ♦2 | -1 | +1 |
| -1.0 | Round 2 | MILNER | 15 | 4♥ | ♣K | +1 | -1 |
| -1.0 | Round 9 | KRANYAK | 7 | 3♣ | ♦K | +1 | +11 |
| -1.0 | Round 10 | SILVERMAN | 15 | 3NT | ♥9 | -2 | -7 |
| -1.2 | Round 10 | SILVERMAN | 19 | 2NT | ♥3 | +2 | +1 |
| -1.4 | Round 8 | SIMSON | 26 | 2♥ | ♦Q | +1 | +0 |
| -1.5 | Round 2 | MILNER | 20 | 2♥ | ♠5 | -1 | -1 |
| -1.5 | Round 5 | PREMO | 24 | 6NT | ♠J | = | +0 |
| -1.8 | Round 1 | USARUSSELL | 4 | 3♦ | ♥K | +2 | +10 |
| -1.8 | Round 8 | SIMSON | 27 | 3NT | ♠6 | -1 | -5 |
| -1.9 | Round 5 | PREMO | 30 | 2♦ | ♠K | = | +0 |
| -1.9 | Round 8 | SIMSON | 24 | 4♥ | ♠7 | +1 | +0 |
| -1.9 | Round 9 | KRANYAK | 3 | 2NT | ♣7 | -1 | -4 |
| -2.0 | Round 6 | GERMAN SENIORS | 1 | 2♣ | ♥K | +2 | -1 |
| -2.0 | Round 10 | SILVERMAN | 11 | 2♠ | ♥A | -1 | -5 |
| -2.1 | Round 5 | PREMO | 21 | 3NT | ♠2 | +1 | -1 |
| -2.1 | Round 10 | SILVERMAN | 14 | 3NT | ♣6 | +1 | +0 |
| -2.4 | Round 1 | USARUSSELL | 3 | 2♠ | ♦7 | +1 | +0 |
| -2.4 | Round 2 | MILNER | 16 | 6♠ | ♥Q | +1 | +11 |
| -2.8 | Round 9 | KRANYAK | 8 | 4♠ | ♠6 | +2 | -2 |
| -3.0 | Round 7 | MCCONNELL | 16 | 3♠ | ♦A | -1 | -6 |
| -3.2 | Round 6 | GERMAN SENIORS | 2 | 2♥ | ♦K | +2 | -7 |
| -3.9 | Round 7 | MCCONNELL | 20 | 4♠ | ♣4 | +1 | +0 |
| -4.0 | Round 6 | GERMAN SENIORS | 3 | 4♥ | ♣10 | +3 | -12 |
| -4.0 | Round 7 | MCCONNELL | 15 | 3♠ | ♣10 | = | -1 |
| -4.2 | Round 2 | MILNER | 19 | 4♥ | ♦A | = | +0 |
| -4.4 | Round 5 | PREMO | 26 | 3NT | ♥10 | = | +0 |
| -4.4 | Round 5 | PREMO | 28 | 3♥ | ♠A | = | -6 |
| -4.8 | Round 6 | GERMAN SENIORS | 9 | 1NT | ♣5 | = | +1 |
| -5.2 | Round 8 | SIMSON | 30 | 3NT | ♥7 | = | +0 |
| -5.4 | Round 9 | KRANYAK | 10 | 4♠ | ♣2 | -1 | -12 |
| -6.9 | Round 7 | MCCONNELL | 18 | 6♣ | ♦K | -1 | -11 |
| -7.0 | Round 5 | PREMO | 22 | 4♥ | ♠Q | +1 | +0 |
| -7.3 | Round 1 | USARUSSELL | 2 | 5♥ | ♦8 | = | -4 |
| -7.3 | Round 8 | SIMSON | 25 | 5♥x | ♣7 | -1 | -11 |
| -7.9 | Round 10 | SILVERMAN | 13 | 6♣ | ♥J | = | +13 |
| -13.7 | Round 2 | MILNER | 13 | 7♠ | ♦7 | = | -15 |