YAMADA Akihiko · JAPAN SENIOR
148rank
+2.6Butler · 84 bds
+0.03per board
±4.4swing
+0.75vs par /bd · #62/268
+0.02adjusted /bd
by round
vs par split: bidding -0.01 · play +0.72
Strength of schedule: opponents averaged -0.01/bd (an average draw) → opponent-adjusted +0.02/bd
Card play — on target: opening leads 84.6% #69 of 268 · declarer play 88.9% #10 of 268 · defence 85.7% #124 of 268
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 85.7% (7) | 84.2% (19) |
| Declarer play | 83.3% (6) | 91.7% (12) |
| Defence | 71.4% (14) | 91.4% (35) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 66.7% (9) · ♦ 100.0% (6) · ♣ 85.7% (7)
vs par by strain: NT +2.00 (22) · a suit +0.25 (61)
vs par by level: part-score +0.66 (32) · game +1.07 (45) · slam -1.67 (6)
By role: declaring +0.61/bd (-0.69 vs par · 35) · defending -0.38/bd (+1.78 vs par · 49)
By vulnerability: vulnerable -0.05/bd (+1.19 vs par · 42) · not vulnerable +0.11/bd (+0.31 vs par · 42)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | K.Ohno | T.Charlsen – T.Hoftaniska | Closed | 12 | -5.5 | -0.46 | -0.08 |
| Round 3 | K.Ohno | R.Shourie – G.Wolpert | Closed | 12 | -16.3 | -1.36 | -0.42 |
| Round 4 | K.Ohno | M.Caracci – L.Cuevas | Open | 12 | -0.6 | -0.05 | +0.08 |
| Round 5 | K.Ohno | K.Martensen-Larsen – F.Poulsen | Open | 12 | -13.7 | -1.14 | -2.17 |
| Round 6 | K.Ohno | R.Solomon – A.Grant | Open | 12 | -5.3 | -0.44 | +3.00 |
| Round 7 | K.Ohno | S.Schapira – J.Rosen Marschoff | Open | 12 | +43.7 | +3.64 | +4.25 |
| Round 8 | K.Ohno | W.Wang – W.Lai | Open | 12 | +0.3 | +0.02 | +0.58 |
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 |
|---|---|---|---|---|---|---|---|
| +11.4 | Round 4 | CHILE MIXTO | 19 | 3NT | ♠9 | -3 | +16 |
| +10.6 | Round 7 | ARMEX | 10 | 3NT | ♠4 | -1 | +12 |
| +10.3 | Round 2 | NORWAY | 18 | 4♣ | ♥Q | -2 | +11 |
| +9.6 | Round 3 | SHOURIE | 6 | 4♥ | ♣10 | +1 | +0 |
| +8.1 | Round 7 | ARMEX | 5 | 4♠ | ♥4 | -1 | +10 |
| +7.9 | Round 7 | ARMEX | 3 | 3NT | ♠7 | +3 | +1 |
| +7.7 | Round 2 | NORWAY | 21 | 6♥ | ♣J | -1 | +14 |
| +6.8 | Round 7 | ARMEX | 9 | 2♠ | ♥8 | +3 | +10 |
| +5.1 | Round 7 | ARMEX | 8 | 4♣ | ♦4 | -2 | +11 |
| +5.0 | Round 7 | ARMEX | 2 | 3♥ | ♠7 | = | +7 |
| +4.7 | Round 8 | GEELY AUTOMOBILE | 16 | 3NT | ♣4 | = | +7 |
| +4.6 | Round 2 | NORWAY | 24 | 3NT | ♣10 | -2 | +11 |
| +4.6 | Round 6 | KIWI BLUE | 17 | 3NT | ♥3 | -2 | +6 |
| +4.0 | Round 4 | CHILE MIXTO | 15 | 5♥x | ♦K | -2 | -5 |
| +3.9 | Round 7 | ARMEX | 12 | Pass | +4 | ||
| +3.5 | Round 5 | DENMARK MIXED | 8 | 2NT | ♥10 | = | +1 |
| +3.4 | Round 8 | GEELY AUTOMOBILE | 22 | 2♠ | ♥9 | -1 | +6 |
| +3.3 | Round 7 | ARMEX | 4 | 2♦ | ♥2 | -1 | +11 |
| +2.7 | Round 7 | ARMEX | 11 | 2♠ | ♦J | +2 | +1 |
| +2.6 | Round 8 | GEELY AUTOMOBILE | 17 | 1NT | ♥5 | = | +5 |
| +2.4 | Round 5 | DENMARK MIXED | 1 | 4♠ | ♦7 | = | +3 |
| +2.2 | Round 4 | CHILE MIXTO | 16 | 3NT | ♠7 | +1 | +0 |
| +1.7 | Round 8 | GEELY AUTOMOBILE | 18 | 3♦ | ♥8 | +1 | +2 |
| +1.5 | Round 6 | KIWI BLUE | 18 | 3♣ | ♥Q | -1 | +5 |
| +1.2 | Round 3 | SHOURIE | 12 | 4♥ | ♦9 | -2 | +6 |
| +1.0 | Round 6 | KIWI BLUE | 13 | 3NT | ♣4 | +2 | +1 |
| +0.9 | Round 4 | CHILE MIXTO | 24 | 4♠x | ♥A | -2 | +4 |
| +0.9 | Round 5 | DENMARK MIXED | 12 | 4♠ | ♥5 | = | +0 |
| +0.7 | Round 6 | KIWI BLUE | 21 | 3♣ | ♦5 | -1 | +1 |
| +0.6 | Round 4 | CHILE MIXTO | 14 | 3NT | ♥Q | -3 | -7 |
| +0.5 | Round 4 | CHILE MIXTO | 18 | 4♠ | ♥J | +1 | +0 |
| +0.5 | Round 6 | KIWI BLUE | 24 | 4♠ | ♦J | = | +0 |
| +0.2 | Round 2 | NORWAY | 17 | 3NT | ♥K | -1 | -6 |
| +0.2 | Round 2 | NORWAY | 22 | 4♥ | ♣6 | = | -1 |
| -0.0 | Round 8 | GEELY AUTOMOBILE | 24 | 3NT | ♥Q | +1 | +1 |
| -0.1 | Round 3 | SHOURIE | 5 | 5♦ | ♠K | -1 | +10 |
| -0.1 | Round 3 | SHOURIE | 10 | 4♠ | ♥K | = | +0 |
| -0.1 | Round 8 | GEELY AUTOMOBILE | 15 | 2♥ | ♥3 | +2 | -10 |
| -0.1 | Round 8 | GEELY AUTOMOBILE | 20 | 3NT | ♠5 | +2 | +0 |
| -0.2 | Round 7 | ARMEX | 1 | 4♥ | ♠2 | = | +0 |
| -0.3 | Round 8 | GEELY AUTOMOBILE | 21 | 3♦ | ♥9 | -1 | -5 |
| -0.4 | Round 4 | CHILE MIXTO | 17 | 3♥ | ♦2 | -1 | -2 |
| -0.4 | Round 5 | DENMARK MIXED | 7 | 4♥ | ♣7 | = | +0 |
| -0.4 | Round 5 | DENMARK MIXED | 10 | 3♦ | ♣7 | = | -10 |
| -0.5 | Round 7 | ARMEX | 6 | 2♥ | ♦7 | +2 | -6 |
| -0.7 | Round 2 | NORWAY | 15 | 5♠x | ♦Q | -1 | +0 |
| -0.7 | Round 2 | NORWAY | 20 | 2♠ | ♥K | -1 | -1 |
| -0.7 | Round 3 | SHOURIE | 7 | 2♠ | ♣K | +1 | +0 |
| -0.9 | Round 4 | CHILE MIXTO | 20 | 3NT | ♠10 | +1 | +12 |
| -1.0 | Round 4 | CHILE MIXTO | 21 | 2♠ | ♥K | = | +1 |
| -1.0 | Round 6 | KIWI BLUE | 23 | 5♣ | ♦7 | +1 | +10 |
| -1.1 | Round 3 | SHOURIE | 2 | 3♠ | ♣J | = | -6 |
| -1.1 | Round 5 | DENMARK MIXED | 9 | 3NT | ♥10 | = | -2 |
| -1.1 | Round 6 | KIWI BLUE | 20 | 4♥ | ♥7 | +2 | +13 |
| -1.1 | Round 8 | GEELY AUTOMOBILE | 14 | 2♠ | ♦Q | -1 | +2 |
| -1.2 | Round 3 | SHOURIE | 4 | 2♠ | ♥2 | +3 | +10 |
| -1.4 | Round 2 | NORWAY | 14 | 5♦x | ♥Q | -1 | -5 |
| -1.5 | Round 5 | DENMARK MIXED | 2 | 1NT | ♣A | -1 | +5 |
| -1.5 | Round 6 | KIWI BLUE | 15 | 4♠ | ♣3 | = | +0 |
| -1.8 | Round 6 | KIWI BLUE | 19 | 3NT | ♣6 | +3 | +12 |
| -2.0 | Round 4 | CHILE MIXTO | 22 | 6♠x | ♣K | -1 | +5 |
| -2.1 | Round 2 | NORWAY | 13 | 3♠ | ♥3 | +2 | -9 |
| -2.1 | Round 5 | DENMARK MIXED | 11 | 4♠ | ♣A | = | +0 |
| -2.2 | Round 2 | NORWAY | 16 | 2♥ | ♣5 | -1 | -4 |
| -2.2 | Round 3 | SHOURIE | 11 | 4♠x | ♦K | -2 | +0 |
| -2.5 | Round 5 | DENMARK MIXED | 3 | 2♥ | ♦K | -1 | +2 |
| -2.5 | Round 5 | DENMARK MIXED | 4 | 2♠ | ♦A | -1 | -5 |
| -2.5 | Round 6 | KIWI BLUE | 14 | 6♦ | ♠J | -2 | -6 |
| -2.7 | Round 6 | KIWI BLUE | 22 | 4♠ | ♥Q | = | -3 |
| -2.7 | Round 8 | GEELY AUTOMOBILE | 23 | 1NT | ♥5 | +3 | -1 |
| -2.8 | Round 3 | SHOURIE | 3 | 5♦ | ♠Q | -1 | -6 |
| -2.9 | Round 8 | GEELY AUTOMOBILE | 19 | 2♠ | ♦K | = | +0 |
| -3.0 | Round 6 | KIWI BLUE | 16 | 4♥ | ♠10 | = | -3 |
| -3.5 | Round 3 | SHOURIE | 9 | 2♥ | ♦Q | +1 | +0 |
| -4.6 | Round 5 | DENMARK MIXED | 5 | 5♥x | ♠A | -3 | -12 |
| -4.9 | Round 8 | GEELY AUTOMOBILE | 13 | 4♠ | ♦Q | = | +0 |
| -5.4 | Round 5 | DENMARK MIXED | 6 | 4♠x | ♣3 | +1 | -8 |
| -6.8 | Round 3 | SHOURIE | 1 | 4♠ | ♣4 | -1 | -10 |
| -7.2 | Round 4 | CHILE MIXTO | 23 | 6♠ | ♣K | = | -12 |
| -7.9 | Round 2 | NORWAY | 23 | 7♣ | ♦A | = | +2 |
| -8.6 | Round 3 | SHOURIE | 8 | 3NT | ♠5 | +3 | -9 |
| -8.7 | Round 4 | CHILE MIXTO | 13 | 1NT | ♠4 | -1 | -11 |
| -9.0 | Round 7 | ARMEX | 7 | 3NT | ♠3 | = | -10 |
| -13.5 | Round 2 | NORWAY | 19 | 6♠ | ♥9 | = | -13 |