KATAYAMA Takanori · JAPAN
vs par split: bidding -0.08 · play -0.29
Strength of schedule: opponents averaged -0.33/bd (an easy draw) → opponent-adjusted -0.20/bd
Card play — on target: opening leads 72.2% #53 of 78 · declarer play 78.9% #24 of 78 · defence 66.7% #75 of 78
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (4) | 64.3% (14) |
| Declarer play | 50.0% (4) | 86.7% (15) |
| Defence | 50.0% (10) | 75.0% (20) |
Opening leads by suit led: ♠ 60.0% (5) · ♥ 100.0% (5) · ♦ 60.0% (5) · ♣ 66.7% (3)
vs par by strain: NT -0.94 (17) · a suit -0.14 (42)
vs par by level: part-score -0.68 (25) · game -1.96 (27) · slam +6.86 (7)
By role: declaring -0.11/bd (-2.79 vs par · 29) · defending +0.35/bd (+1.81 vs par · 31)
By vulnerability: vulnerable -0.33/bd (-0.30 vs par · 30) · not vulnerable +0.59/bd (-0.53 vs par · 30)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | H.Yuge | H.Castel – V.Langlet | Closed | 10 | +1.6 | +0.16 | +2.40 |
| Round 3 | H.Yuge | O.Koivu – M.Myllaeri | Closed | 10 | -3.4 | -0.34 | -1.70 |
| Round 4 | H.Yuge | Y.Zhao – T.Chen | Open | 10 | -11.6 | -1.16 | -3.90 |
| Round 6 | H.Yuge | S.Vazic – O.Kikic | Closed | 10 | +23.4 | +2.34 | +1.30 |
| Round 7 | H.Yuge | G.Minutti – S.Ochoa | Closed | 10 | -6.9 | -0.69 | -1.50 |
| Round 8 | H.Yuge | S.Harrison – M.Henbest | Open | 10 | +4.7 | +0.47 | +0.90 |
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 |
|---|---|---|---|---|---|---|---|
| +11.0 | Round 7 | SUDAMERICA | 9 | 6♥ | ♠3 | +1 | +11 |
| +10.4 | Round 1 | FRANCE | 3 | 6♣ | ♠7 | -3 | +14 |
| +10.0 | Round 6 | SRBIJA | 25 | 6NT | ♥3 | -2 | +14 |
| +9.0 | Round 6 | SRBIJA | 29 | 6♣ | ♦3 | = | +0 |
| +5.3 | Round 6 | SRBIJA | 21 | 6♥ | ♠6 | +1 | +11 |
| +4.5 | Round 4 | ZHIHAOLE | 10 | 4♠ | ♣K | +1 | +0 |
| +4.3 | Round 3 | FINLAND | 23 | 5♣ | ♠K | -1 | -1 |
| +4.3 | Round 7 | SUDAMERICA | 1 | 6♥ | ♣5 | = | +0 |
| +4.3 | Round 7 | SUDAMERICA | 8 | 6♣ | ♥J | = | -2 |
| +3.9 | Round 8 | AUSTRALIA | 11 | 2♠ | ♣Q | -1 | +4 |
| +3.8 | Round 3 | FINLAND | 24 | 3♠ | ♦6 | -1 | +2 |
| +3.7 | Round 8 | AUSTRALIA | 14 | 4♦ | ♦2 | -1 | +4 |
| +3.5 | Round 1 | FRANCE | 7 | 4♠ | ♥3 | -2 | +8 |
| +3.3 | Round 7 | SUDAMERICA | 2 | 2♥ | ♦J | = | +5 |
| +3.2 | Round 1 | FRANCE | 1 | 1NT | ♥4 | +1 | +6 |
| +2.5 | Round 6 | SRBIJA | 22 | 3NT | ♦3 | +2 | +0 |
| +2.1 | Round 3 | FINLAND | 29 | 5♣ | ♠A | -1 | -6 |
| +2.1 | Round 6 | SRBIJA | 28 | 2♥ | ♥3 | +1 | +1 |
| +2.1 | Round 8 | AUSTRALIA | 17 | 1NT | ♣10 | -1 | +5 |
| +2.0 | Round 4 | ZHIHAOLE | 9 | 5♦ | ♦8 | = | -11 |
| +1.7 | Round 8 | AUSTRALIA | 16 | 3NT | ♣5 | -1 | +5 |
| +1.6 | Round 6 | SRBIJA | 26 | 4♠ | ♦4 | +1 | +1 |
| +1.3 | Round 3 | FINLAND | 22 | 2♣ | ♠3 | = | +0 |
| +1.2 | Round 3 | FINLAND | 26 | 2♠ | ♣4 | +2 | +10 |
| +1.1 | Round 3 | FINLAND | 30 | 2♦ | ♥J | +2 | +0 |
| +0.8 | Round 7 | SUDAMERICA | 10 | 5♥ | ♠A | = | +0 |
| +0.8 | Round 8 | AUSTRALIA | 12 | 3NT | ♣4 | +2 | +1 |
| +0.6 | Round 1 | FRANCE | 6 | 4♥ | ♦K | = | +0 |
| +0.5 | Round 8 | AUSTRALIA | 19 | 4♠ | ♦5 | +2 | +1 |
| +0.2 | Round 4 | ZHIHAOLE | 8 | 3♠ | ♣3 | = | -1 |
| +0.2 | Round 6 | SRBIJA | 27 | 2♠ | ♦2 | -1 | -2 |
| +0.2 | Round 7 | SUDAMERICA | 7 | 5♠ | ♥Q | +1 | +13 |
| +0.1 | Round 8 | AUSTRALIA | 20 | 4♠ | ♥2 | +1 | +0 |
| +0.0 | Round 4 | ZHIHAOLE | 6 | 1NT | ♦6 | = | +2 |
| -0.1 | Round 4 | ZHIHAOLE | 2 | 1NT | ♦7 | -1 | -3 |
| -0.3 | Round 1 | FRANCE | 5 | 4♥ | ♠A | -1 | +1 |
| -1.0 | Round 4 | ZHIHAOLE | 5 | 3NT | ♣4 | +3 | -1 |
| -1.1 | Round 1 | FRANCE | 9 | 3NT | ♣7 | -1 | -5 |
| -1.3 | Round 6 | SRBIJA | 24 | 3NT | ♦2 | +2 | -11 |
| -1.5 | Round 1 | FRANCE | 10 | 3♣ | ♠J | = | +0 |
| -1.8 | Round 4 | ZHIHAOLE | 1 | 2♠ | ♣Q | -1 | -4 |
| -1.9 | Round 3 | FINLAND | 27 | 4♠ | ♥10 | +1 | -1 |
| -1.9 | Round 6 | SRBIJA | 30 | 4♠ | ♦8 | = | +0 |
| -2.2 | Round 8 | AUSTRALIA | 15 | 2♠ | ♦6 | +1 | -1 |
| -2.3 | Round 3 | FINLAND | 21 | Pass | -3 | ||
| -2.3 | Round 8 | AUSTRALIA | 18 | 4♥ | ♦8 | +1 | -4 |
| -2.4 | Round 1 | FRANCE | 2 | 4♠ | ♦A | -1 | +5 |
| -3.1 | Round 4 | ZHIHAOLE | 3 | 1NT | ♥5 | = | -5 |
| -3.6 | Round 8 | AUSTRALIA | 13 | 1NT | ♥5 | +2 | -6 |
| -3.7 | Round 7 | SUDAMERICA | 5 | 3♣ | ♠6 | +2 | -7 |
| -4.1 | Round 6 | SRBIJA | 23 | 1NT | ♥9 | +2 | -1 |
| -5.0 | Round 1 | FRANCE | 8 | 3NT | ♠5 | -4 | -3 |
| -5.1 | Round 4 | ZHIHAOLE | 7 | 3♥ | ♣K | -1 | -6 |
| -5.8 | Round 1 | FRANCE | 4 | 1NTx | ♠7 | = | -2 |
| -6.0 | Round 3 | FINLAND | 25 | 4♠ | ♥6 | -2 | -7 |
| -7.0 | Round 3 | FINLAND | 28 | 4♠ | ♥K | +2 | -11 |
| -7.2 | Round 4 | ZHIHAOLE | 4 | 3♠ | ♥A | +1 | -10 |
| -7.3 | Round 7 | SUDAMERICA | 3 | 3NT | ♦K | -1 | -12 |
| -7.7 | Round 7 | SUDAMERICA | 4 | 4♦ | ♥K | = | -8 |
| -12.1 | Round 7 | SUDAMERICA | 6 | 5♦x | ♠7 | -2 | -15 |