🇯🇵 NAKAYAMA Naozumi · Japan
62rank
-17.5Butler · 80 bds
-0.22per board
±4.7swing
-0.28adjusted /bd
by round
Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted -0.28/bd
By role: declaring -0.29/bd (43) · defending -0.11/bd (36)
By vulnerability: not vulnerable -0.22/bd (80)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | S.Gotoda | A.Blagov – G.Zind | Closed | 10 | +21.0 | +2.10 | · |
| Round 4 | S.Gotoda | I.Volozhenin – K.Nekrasova | Open | 10 | -5.6 | -0.56 | · |
| Round 6 | S.Gotoda | V.De Pagter – J.Hop | Closed | 10 | +40.9 | +4.09 | · |
| Round 10 | S.Gotoda | Y.Chen – Z.Lin | Closed | 10 | -31.9 | -3.19 | · |
| Round 11 | S.Gotoda | S.Katz – D.Goldfein | Open | 10 | -26.4 | -2.64 | · |
| Round 14 | S.Gotoda | J.Katerbau – M.Rehder | Open | 10 | -14.1 | -1.41 | · |
| Round 15 | S.Gotoda | L.Johansen – H.Bogen | Closed | 10 | -17.3 | -1.73 | · |
| Round 16 | S.Gotoda | K.Kong – C.Lau | Open | 10 | +15.9 | +1.59 | · |
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 |
|---|---|---|---|---|---|---|---|
| +11.2 | Round 6 | 🇳🇱 Netherlands | 23 | 4♠x | ♦K | = | · |
| +9.3 | Round 6 | 🇳🇱 Netherlands | 21 | 3♠ | ♣6 | +2 | · |
| +8.8 | Round 16 | 🇭🇰 China Hong Kong | 8 | 4♥ | ♥T | +2 | · |
| +8.0 | Round 6 | 🇳🇱 Netherlands | 26 | 2♦ | ♣3 | +3 | · |
| +7.4 | Round 3 | 🇨🇦 Canada | 28 | 6♠ | ♥K | -1 | · |
| +6.4 | Round 4 | 🇷🇺 Russia | 6 | 3N | ♠T | = | · |
| +6.2 | Round 3 | 🇨🇦 Canada | 24 | 4♥ | ♣Q | = | · |
| +6.1 | Round 6 | 🇳🇱 Netherlands | 25 | 5♦ | ♥A | = | · |
| +6.0 | Round 14 | 🇩🇪 Germany | 16 | 2♣ | ♣3 | +2 | · |
| +5.7 | Round 3 | 🇨🇦 Canada | 26 | 4♥ | ♦A | -1 | · |
| +5.3 | Round 14 | 🇩🇪 Germany | 20 | 1N | ♥T | +1 | · |
| +4.6 | Round 4 | 🇷🇺 Russia | 4 | 1N | ♥T | = | · |
| +4.4 | Round 16 | 🇭🇰 China Hong Kong | 6 | 6♠ | ♣T | = | · |
| +4.3 | Round 6 | 🇳🇱 Netherlands | 29 | 3N | ♠K | -1 | · |
| +3.8 | Round 3 | 🇨🇦 Canada | 30 | 5♦x | ♥K | -1 | · |
| +2.9 | Round 14 | 🇩🇪 Germany | 15 | 4♠ | ♠A | +1 | · |
| +2.1 | Round 10 | 🇨🇳 China | 8 | 6♣ | ♠9 | +1 | · |
| +1.9 | Round 3 | 🇨🇦 Canada | 22 | 5♣ | ♥3 | +1 | · |
| +1.9 | Round 16 | 🇭🇰 China Hong Kong | 7 | 4♥ | ♦6 | +2 | · |
| +1.8 | Round 6 | 🇳🇱 Netherlands | 27 | 4♠ | ♦2 | -2 | · |
| +1.6 | Round 10 | 🇨🇳 China | 7 | 3N | ♦3 | +3 | · |
| +1.6 | Round 11 | 🇺🇸 USA 2 | 15 | 5♥ | ♦5 | = | · |
| +1.6 | Round 15 | 🇳🇴 Norway | 27 | 4♠ | ♣K | -3 | · |
| +1.4 | Round 16 | 🇭🇰 China Hong Kong | 4 | 4♠ | ♠5 | +1 | · |
| +1.3 | Round 16 | 🇭🇰 China Hong Kong | 2 | 4♠ | ♥A | -1 | · |
| +1.1 | Round 3 | 🇨🇦 Canada | 27 | 2♠ | ♠3 | = | · |
| +1.1 | Round 16 | 🇭🇰 China Hong Kong | 1 | 5♦ | ♥5 | = | · |
| +1.1 | Round 16 | 🇭🇰 China Hong Kong | 9 | 3♠ | ♦K | = | · |
| +1.0 | Round 4 | 🇷🇺 Russia | 7 | 3♦ | ♥2 | = | · |
| +0.9 | Round 11 | 🇺🇸 USA 2 | 18 | 1N | ♥2 | +1 | · |
| +0.9 | Round 14 | 🇩🇪 Germany | 17 | 3♠ | ♦K | = | · |
| +0.8 | Round 10 | 🇨🇳 China | 10 | 1N | ♦9 | = | · |
| +0.7 | Round 6 | 🇳🇱 Netherlands | 28 | 4♠ | ♣2 | = | · |
| +0.5 | Round 3 | 🇨🇦 Canada | 21 | 4♥ | ♣5 | = | · |
| +0.5 | Round 6 | 🇳🇱 Netherlands | 30 | 2♠ | ♦2 | -1 | · |
| +0.3 | Round 3 | 🇨🇦 Canada | 29 | 5♥ | ♦T | -1 | · |
| +0.3 | Round 4 | 🇷🇺 Russia | 10 | 3♦ | ♥K | = | · |
| +0.2 | Round 3 | 🇨🇦 Canada | 25 | 2♠ | ♣Q | -1 | · |
| +0.2 | Round 4 | 🇷🇺 Russia | 3 | 3♣ | ♠Q | = | · |
| +0.1 | Round 11 | 🇺🇸 USA 2 | 14 | 1N | ♥6 | -1 | · |
| -0.1 | Round 15 | 🇳🇴 Norway | 29 | 1N | ♦4 | +1 | · |
| -0.2 | Round 15 | 🇳🇴 Norway | 30 | 3♥ | ♠5 | -1 | · |
| -0.3 | Round 6 | 🇳🇱 Netherlands | 22 | 2♥ | ♣J | -2 | · |
| -0.3 | Round 15 | 🇳🇴 Norway | 24 | 3N | ♦4 | = | · |
| -0.3 | Round 15 | 🇳🇴 Norway | 28 | 4♥x | ♠9 | -3 | · |
| -0.3 | Round 16 | 🇭🇰 China Hong Kong | 5 | 4♠ | ♥J | = | · |
| -0.6 | Round 15 | 🇳🇴 Norway | 22 | 1N | ♦7 | = | · |
| -0.7 | Round 6 | 🇳🇱 Netherlands | 24 | 3♣ | ♦J | -2 | · |
| -0.7 | Round 10 | 🇨🇳 China | 3 | 4♠ | ♣Q | +2 | · |
| -0.7 | Round 16 | 🇭🇰 China Hong Kong | 10 | 4♥ | ♠4 | = | · |
| -0.8 | Round 14 | 🇩🇪 Germany | 18 | 3♥ | ♦2 | +1 | · |
| -0.9 | Round 4 | 🇷🇺 Russia | 9 | 3N | ♥4 | +1 | · |
| -1.0 | Round 11 | 🇺🇸 USA 2 | 17 | 4♥ | ♣5 | = | · |
| -1.4 | Round 4 | 🇷🇺 Russia | 8 | 2♥ | ♣2 | +1 | · |
| -1.4 | Round 10 | 🇨🇳 China | 4 | 3♥ | ♣A | = | · |
| -1.4 | Round 15 | 🇳🇴 Norway | 23 | Pass | · | ||
| -1.6 | Round 14 | 🇩🇪 Germany | 19 | 4♠ | ♥9 | +2 | · |
| -1.7 | Round 11 | 🇺🇸 USA 2 | 16 | 2♥ | ♣5 | -1 | · |
| -2.2 | Round 11 | 🇺🇸 USA 2 | 13 | 4♠x | ♦5 | -2 | · |
| -2.5 | Round 11 | 🇺🇸 USA 2 | 12 | 3♠ | ♥7 | -2 | · |
| -2.5 | Round 11 | 🇺🇸 USA 2 | 20 | 4♦x | ♦7 | -1 | · |
| -2.5 | Round 15 | 🇳🇴 Norway | 25 | 3N | ♠4 | = | · |
| -2.9 | Round 4 | 🇷🇺 Russia | 2 | 5♦ | ♠A | = | · |
| -3.1 | Round 16 | 🇭🇰 China Hong Kong | 3 | 3♣ | ♦K | = | · |
| -3.6 | Round 4 | 🇷🇺 Russia | 1 | 3♥ | ♣A | -3 | · |
| -3.7 | Round 15 | 🇳🇴 Norway | 21 | 5♣ | ♥2 | +1 | · |
| -3.8 | Round 10 | 🇨🇳 China | 2 | 3N | ♦6 | = | · |
| -3.9 | Round 14 | 🇩🇪 Germany | 12 | 4♠ | ♥J | = | · |
| -4.1 | Round 10 | 🇨🇳 China | 5 | 2♥ | ♣K | = | · |
| -4.6 | Round 10 | 🇨🇳 China | 6 | 4♥ | ♠J | = | · |
| -4.9 | Round 11 | 🇺🇸 USA 2 | 19 | 5♣ | ♠K | -1 | · |
| -5.0 | Round 14 | 🇩🇪 Germany | 13 | 3N | ♣8 | -2 | · |
| -6.1 | Round 3 | 🇨🇦 Canada | 23 | 2♥ | ♠6 | = | · |
| -7.0 | Round 14 | 🇩🇪 Germany | 11 | 3N | ♠2 | -1 | · |
| -9.3 | Round 4 | 🇷🇺 Russia | 5 | 4♠ | ♣8 | = | · |
| -9.3 | Round 10 | 🇨🇳 China | 1 | 4♠ | ♦3 | = | · |
| -9.8 | Round 15 | 🇳🇴 Norway | 26 | 3N | ♠K | +2 | · |
| -10.9 | Round 14 | 🇩🇪 Germany | 14 | 5♥x | ♠K | -1 | · |
| -12.5 | Round 10 | 🇨🇳 China | 9 | 2♦x | ♣A | -3 | · |
| -14.2 | Round 11 | 🇺🇸 USA 2 | 11 | 7♦ | ♥Q | -1 | · |