OMASA Akito · JAPAN SENIOR
402rank
-20.5Butler · 80 bds
-0.26per board
±3.7swing
+0.04vs par /bd · #257/535
-0.08adjusted /bd
by round
vs par split: bidding +0.23 · play -0.19
Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted -0.08/bd
Card play — on target: opening leads 81.0% #179 of 534 · declarer play 66.7% #403 of 534 · defence 86.4% #236 of 535
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 85.7% (7) | 78.6% (14) |
| Declarer play | 42.9% (7) | 78.6% (14) |
| Defence | 81.2% (16) | 89.3% (28) |
Opening leads by suit led: ♠ 85.7% (7) · ♥ 100.0% (5) · ♦ 40.0% (5) · ♣ 100.0% (4)
vs par by strain: NT -1.16 (25) · a suit +0.58 (55)
vs par by level: part-score +0.73 (37) · game -0.32 (38) · slam -2.40 (5)
By role: declaring -0.35/bd (-2.61 vs par · 36) · defending -0.18/bd (+2.21 vs par · 44)
By vulnerability: vulnerable -0.15/bd (-1.02 vs par · 41) · not vulnerable -0.37/bd (+1.15 vs par · 39)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 6 | T.Imakura | C.Rieusset – B.Rieusset | Open | 10 | -7.4 | -0.74 | -1.50 |
| Round 7 | T.Imakura | N.Selway – K.Preddy | Open | 10 | +4.0 | +0.40 | +0.20 |
| Round 9 | K.Ohno | J.Bian – X.Cao | Closed | 10 | +0.7 | +0.07 | +0.00 |
| Round 10 | K.Yamada | A.Waszkiewicz – J.Jagodzinski | Open | 10 | -14.5 | -1.45 | +0.40 |
| Round 11 | T.Imakura | P.Sridharan – S.Srinivasan | Closed | 10 | -18.6 | -1.86 | +0.20 |
| Round 12 | T.Imakura | T.Ponomareva – T.Dikhnova | Closed | 10 | +0.6 | +0.06 | -0.10 |
| Round 14 | T.Imakura | H.Melbourne – B.Thompson | Closed | 10 | +11.6 | +1.16 | +1.70 |
| Round 15 | T.Imakura | J.Sprung – D.Sprung | Open | 10 | +3.1 | +0.31 | -0.60 |
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 |
|---|---|---|---|---|---|---|---|
| +8.3 | Round 9 | CHINA XHJT | 27 | 3NT | ♣10 | -4 | +8 |
| +7.8 | Round 7 | BELL | 7 | 4♥ | ♠3 | -2 | +13 |
| +7.0 | Round 14 | AUSSIE OTHERS | 20 | 4♠x | ♥J | = | +4 |
| +5.2 | Round 15 | PUNCH | 23 | 1NT | ♦K | -3 | +5 |
| +5.0 | Round 12 | MOET | 22 | 3♠ | ♣K | +2 | +6 |
| +5.0 | Round 15 | PUNCH | 22 | 5♥x | ♣A | -1 | +6 |
| +4.7 | Round 10 | POLAND UNIVERSITY | 1 | 3NT | ♦3 | +1 | +0 |
| +4.6 | Round 6 | MERRET | 22 | 6NT | ♥2 | = | +0 |
| +4.4 | Round 15 | PUNCH | 26 | 3NT | ♦4 | = | -1 |
| +4.2 | Round 7 | BELL | 1 | 4♥ | ♠4 | = | +8 |
| +4.1 | Round 10 | POLAND UNIVERSITY | 5 | 4♠ | ♦K | -3 | +7 |
| +4.0 | Round 14 | AUSSIE OTHERS | 14 | 3♥ | ♦K | = | +1 |
| +3.8 | Round 7 | BELL | 9 | 7♣ | ♣5 | = | -2 |
| +3.8 | Round 11 | INDIA OPEN | 15 | 2♠ | ♥8 | -1 | +4 |
| +3.0 | Round 9 | CHINA XHJT | 24 | 3NT | ♥5 | -3 | +6 |
| +2.7 | Round 10 | POLAND UNIVERSITY | 4 | 4♠ | ♦K | -1 | +6 |
| +1.9 | Round 6 | MERRET | 21 | 4♠x | ♦A | -2 | +11 |
| +1.8 | Round 6 | MERRET | 29 | 2♥ | ♦A | +1 | +0 |
| +1.8 | Round 14 | AUSSIE OTHERS | 13 | 2♠ | ♦2 | = | +1 |
| +1.7 | Round 15 | PUNCH | 30 | 1NT | ♣2 | = | +2 |
| +1.5 | Round 10 | POLAND UNIVERSITY | 7 | 3♦ | ♠9 | -1 | +5 |
| +1.4 | Round 7 | BELL | 8 | 3♠ | ♦K | -1 | +2 |
| +1.4 | Round 9 | CHINA XHJT | 21 | 2♦ | ♠4 | +1 | +11 |
| +1.4 | Round 14 | AUSSIE OTHERS | 11 | 3♥ | ♠K | -2 | +0 |
| +1.2 | Round 12 | MOET | 26 | 3NT | ♦10 | +2 | +1 |
| +1.1 | Round 11 | INDIA OPEN | 17 | 3NT | ♠J | -1 | +5 |
| +1.1 | Round 14 | AUSSIE OTHERS | 18 | 4♠ | ♥5 | -2 | +5 |
| +0.8 | Round 11 | INDIA OPEN | 18 | 1♣ | ♦4 | = | +2 |
| +0.8 | Round 14 | AUSSIE OTHERS | 17 | 1NT | ♣Q | +3 | -6 |
| +0.7 | Round 9 | CHINA XHJT | 30 | 2♥ | ♠3 | = | +0 |
| +0.5 | Round 7 | BELL | 6 | 2♦ | ♥4 | +1 | -1 |
| +0.5 | Round 12 | MOET | 28 | 2♠ | ♣A | +2 | +1 |
| +0.5 | Round 12 | MOET | 29 | 4♥ | ♠K | +1 | +0 |
| +0.4 | Round 9 | CHINA XHJT | 25 | 3NT | ♠2 | +2 | -13 |
| +0.4 | Round 9 | CHINA XHJT | 28 | 4♥ | ♣3 | = | +0 |
| +0.1 | Round 6 | MERRET | 28 | 2♥ | ♦Q | -1 | +1 |
| +0.1 | Round 9 | CHINA XHJT | 22 | 4♥ | ♣Q | +1 | +0 |
| +0.1 | Round 9 | CHINA XHJT | 23 | 2♦ | ♠9 | = | -1 |
| -0.0 | Round 10 | POLAND UNIVERSITY | 9 | 2♦ | ♠A | = | -1 |
| -0.1 | Round 12 | MOET | 21 | 3♠ | ♠2 | -2 | -6 |
| -0.2 | Round 14 | AUSSIE OTHERS | 19 | 4♥ | ♣2 | +2 | +13 |
| -0.3 | Round 6 | MERRET | 25 | 6♣ | ♦A | -2 | -8 |
| -0.3 | Round 10 | POLAND UNIVERSITY | 8 | 3♦ | ♥7 | +2 | +7 |
| -0.4 | Round 6 | MERRET | 27 | 4♠ | ♥10 | +1 | +0 |
| -0.4 | Round 12 | MOET | 24 | 1NT | ♦5 | +1 | +7 |
| -0.4 | Round 15 | PUNCH | 24 | 3♥ | ♣6 | = | +0 |
| -0.5 | Round 12 | MOET | 25 | 2NT | ♥3 | = | +1 |
| -0.7 | Round 15 | PUNCH | 21 | 4♠ | ♦10 | +2 | -1 |
| -0.8 | Round 15 | PUNCH | 27 | 4♥ | ♠2 | = | +1 |
| -0.9 | Round 11 | INDIA OPEN | 11 | 2♥ | ♠A | -2 | +0 |
| -0.9 | Round 12 | MOET | 23 | 3NT | ♥4 | +2 | +0 |
| -1.0 | Round 6 | MERRET | 24 | 3NT | ♥3 | = | +1 |
| -1.0 | Round 14 | AUSSIE OTHERS | 15 | 2NT | ♠3 | = | +0 |
| -1.2 | Round 12 | MOET | 27 | 4♠ | ♦4 | -1 | -5 |
| -1.2 | Round 14 | AUSSIE OTHERS | 12 | 2♠ | ♦7 | +1 | +0 |
| -1.3 | Round 7 | BELL | 2 | 2NT | ♠J | = | +0 |
| -1.4 | Round 15 | PUNCH | 25 | 4♥ | ♦K | = | +1 |
| -1.5 | Round 7 | BELL | 10 | 2♥ | ♦3 | -1 | +1 |
| -2.0 | Round 11 | INDIA OPEN | 13 | 3NT | ♠6 | +1 | -1 |
| -2.1 | Round 10 | POLAND UNIVERSITY | 3 | 2♥ | ♦J | +1 | +10 |
| -2.1 | Round 14 | AUSSIE OTHERS | 16 | 1NT | ♠5 | +1 | -1 |
| -2.6 | Round 7 | BELL | 3 | 3♠ | ♥10 | -2 | -7 |
| -2.8 | Round 7 | BELL | 5 | 2♠ | ♦7 | = | +0 |
| -2.8 | Round 9 | CHINA XHJT | 29 | 2♣ | ♠5 | +3 | -1 |
| -2.8 | Round 11 | INDIA OPEN | 12 | 4♥ | ♣Q | +2 | -1 |
| -2.8 | Round 15 | PUNCH | 28 | 3♣ | ♣9 | = | -7 |
| -3.0 | Round 6 | MERRET | 23 | 3NT | ♦3 | +2 | -1 |
| -3.5 | Round 12 | MOET | 30 | 2♠ | ♠3 | +2 | -6 |
| -3.6 | Round 10 | POLAND UNIVERSITY | 10 | 4♥ | ♣K | -1 | -6 |
| -3.8 | Round 11 | INDIA OPEN | 14 | 6♠ | ♠4 | = | +11 |
| -4.1 | Round 11 | INDIA OPEN | 19 | 3NT | ♥2 | +2 | -1 |
| -4.5 | Round 6 | MERRET | 30 | 2NT | ♠7 | -4 | -3 |
| -4.8 | Round 11 | INDIA OPEN | 20 | 5♦ | ♠A | -1 | -6 |
| -5.5 | Round 7 | BELL | 4 | 3NT | ♠8 | -1 | -12 |
| -5.9 | Round 11 | INDIA OPEN | 16 | 4♥ | ♦J | +1 | -11 |
| -6.6 | Round 6 | MERRET | 26 | 3NT | ♠2 | -1 | -16 |
| -7.1 | Round 15 | PUNCH | 29 | 5♦ | ♣K | -1 | -12 |
| -10.6 | Round 10 | POLAND UNIVERSITY | 6 | 6♣ | ♦J | = | -13 |
| -10.9 | Round 9 | CHINA XHJT | 26 | 3NT | ♥6 | = | -10 |
| -10.9 | Round 10 | POLAND UNIVERSITY | 2 | 5♣ | ♠6 | -4 | -11 |