🇨🇭 PIEDRA Fernando · SWITZERLAND
33rank
-20.4Butler · 96 bds
-0.21per board
±5.6swing
-0.20vs par /bd
-0.41adjusted /bd
by round
vs par split: bidding -0.03 · play -0.17
Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted -0.41/bd
Card play — on target: opening leads 76.2% · declarer play 70.4% · defence 82.7%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (6) | 86.7% (15) |
| Declarer play | 75.0% (4) | 69.6% (23) |
| Defence | 69.2% (13) | 87.2% (39) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 77.8% (9) · ♦ 75.0% (4) · ♣ 75.0% (4)
vs par by strain: NT +0.53 (19) · a suit -0.38 (77)
vs par by level: part-score -2.15 (27) · game +0.40 (60) · slam +1.67 (9)
By role: declaring -0.94/bd (-1.96 vs par · 44) · defending +0.40/bd (+1.29 vs par · 52)
By vulnerability: vulnerable +0.42/bd (-0.85 vs par · 48) · not vulnerable -0.85/bd (+0.46 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | P.Zimmermann | K.Dyke – M.Byrne | Open | 16 | -39.6 | -2.48 | -2.12 |
| Semifinal | P.Zimmermann | B.Levin – S.Weinstein | Open | 16 | +41.7 | +2.61 | +3.31 |
| Semifinal | P.Zimmermann | G.Hampson – E.Greco | Open | 16 | -3.8 | -0.24 | +1.06 |
| Semifinal | P.Zimmermann | S.Weinstein – B.Levin | Open | 16 | -3.7 | -0.23 | -0.44 |
| Final | P.Zimmermann | S.De Wijs – B.Muller | Closed | 16 | +4.0 | +0.25 | +0.38 |
| Final | P.Zimmermann | B.Muller – S.De Wijs | Open | 16 | -19.0 | -1.19 | -3.38 |
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 |
|---|---|---|---|---|---|---|---|
| +14.0 | Semifinal | 🇺🇸 USA 1 | 38 | 3NTx | ♥9 | -3 | +14 |
| +13.0 | Final | 🇳🇱 NETHERLANDS | 19 | 5♦ | ♠K | +1 | -3 |
| +12.3 | Semifinal | 🇺🇸 USA 1 | 52 | 6♣ | ♦6 | -1 | +13 |
| +11.0 | Final | 🇳🇱 NETHERLANDS | 8 | 4♠ | ♦3 | +1 | +1 |
| +10.7 | Semifinal | 🇺🇸 USA 1 | 31 | 5♥ | ♦7 | +2 | +14 |
| +10.0 | Final | 🇳🇱 NETHERLANDS | 6 | 3NT | ♠A | -1 | +10 |
| +9.3 | Semifinal | 🇺🇸 USA 1 | 27 | 3NT | ♦3 | +1 | +7 |
| +9.1 | Quarterfinal | 🏴 ENGLAND | 4 | 6♦ | ♥3 | +1 | -2 |
| +9.0 | Semifinal | 🇺🇸 USA 1 | 26 | 4♠ | ♦3 | +1 | +13 |
| +9.0 | Final | 🇳🇱 NETHERLANDS | 5 | 5♥ | ♦A | -1 | +12 |
| +7.7 | Semifinal | 🇺🇸 USA 1 | 58 | 5♣ | ♦K | -2 | +8 |
| +6.0 | Semifinal | 🇺🇸 USA 1 | 45 | 4♠ | ♣Q | -1 | +12 |
| +6.0 | Semifinal | 🇺🇸 USA 1 | 47 | 4♥ | ♣6 | = | +10 |
| +5.3 | Semifinal | 🇺🇸 USA 1 | 20 | 4♠ | ♦5 | -2 | +13 |
| +4.7 | Semifinal | 🇺🇸 USA 1 | 37 | 3♣ | ♠J | -1 | +0 |
| +4.0 | Final | 🇳🇱 NETHERLANDS | 15 | 2♠ | ♠10 | = | +5 |
| +3.7 | Semifinal | 🇺🇸 USA 1 | 24 | 3NT | ♥Q | -2 | +11 |
| +3.3 | Semifinal | 🇺🇸 USA 1 | 17 | 3NT | ♣5 | -1 | +5 |
| +3.3 | Semifinal | 🇺🇸 USA 1 | 30 | 4♠ | ♥9 | = | +7 |
| +3.0 | Final | 🇳🇱 NETHERLANDS | 2 | 3♦x | ♥A | -1 | +2 |
| +3.0 | Final | 🇳🇱 NETHERLANDS | 29 | 5♦ | ♥10 | -1 | -12 |
| +2.3 | Semifinal | 🇺🇸 USA 1 | 18 | 2♥ | ♦K | +2 | -1 |
| +2.0 | Semifinal | 🇺🇸 USA 1 | 64 | 4♥ | ♦Q | = | +0 |
| +1.7 | Semifinal | 🇺🇸 USA 1 | 28 | 2♥ | ♠A | -2 | -1 |
| +1.7 | Semifinal | 🇺🇸 USA 1 | 32 | 2NT | ♦6 | -1 | +0 |
| +1.7 | Semifinal | 🇺🇸 USA 1 | 35 | 5♣x | ♠4 | -2 | +5 |
| +1.3 | Semifinal | 🇺🇸 USA 1 | 55 | 3♦ | ♥A | -2 | +2 |
| +1.0 | Final | 🇳🇱 NETHERLANDS | 4 | 3♠ | ♣5 | = | +0 |
| +1.0 | Final | 🇳🇱 NETHERLANDS | 11 | 3NT | ♥8 | +2 | -1 |
| +1.0 | Final | 🇳🇱 NETHERLANDS | 16 | 4♥ | ♣A | +1 | +1 |
| +1.0 | Final | 🇳🇱 NETHERLANDS | 20 | 2♥ | ♣2 | +3 | -9 |
| +1.0 | Final | 🇳🇱 NETHERLANDS | 21 | 4♠x | ♥Q | -6 | +1 |
| +0.9 | Quarterfinal | 🏴 ENGLAND | 14 | 3♥ | ♥10 | = | +0 |
| +0.7 | Semifinal | 🇺🇸 USA 1 | 43 | 2NT | ♥9 | -3 | +0 |
| +0.3 | Quarterfinal | 🏴 ENGLAND | 7 | 4♥ | ♠4 | +1 | +0 |
| +0.3 | Semifinal | 🇺🇸 USA 1 | 25 | 3NT | ♦6 | +2 | +0 |
| +0.0 | Quarterfinal | 🏴 ENGLAND | 1 | 4♠ | ♥J | +1 | +0 |
| +0.0 | Quarterfinal | 🏴 ENGLAND | 13 | 6♠ | ♣J | = | +0 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 22 | 6♦ | ♠3 | +1 | +12 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 44 | 4♥ | ♦K | +1 | +0 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 49 | 4♥ | ♥6 | -1 | -5 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 57 | 4♠ | ♥6 | = | -3 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 61 | 4♥ | ♣A | +1 | +0 |
| +0.0 | Semifinal | 🇺🇸 USA 1 | 63 | 3NT | ♠A | +2 | +0 |
| -0.0 | Final | 🇳🇱 NETHERLANDS | 1 | 5♦ | ♥A | -1 | +5 |
| -0.0 | Final | 🇳🇱 NETHERLANDS | 3 | 6♠ | ♣J | = | +0 |
| -0.0 | Final | 🇳🇱 NETHERLANDS | 7 | 4♥ | ♣10 | +1 | +0 |
| -0.0 | Final | 🇳🇱 NETHERLANDS | 13 | 6♥ | ♠Q | = | -8 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 17 | 3NT | ♥4 | +1 | -1 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 18 | 3♠ | ♦9 | -2 | -1 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 23 | 4♠ | ♦2 | +2 | -1 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 25 | 3NT | ♦3 | +1 | +0 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 27 | 4♠ | ♦Q | = | +0 |
| +0.0 | Final | 🇳🇱 NETHERLANDS | 28 | 1NT | ♠2 | -2 | -3 |
| -0.3 | Semifinal | 🇺🇸 USA 1 | 23 | 4♠ | ♦3 | = | +0 |
| -0.3 | Semifinal | 🇺🇸 USA 1 | 29 | 3♥ | ♠3 | -2 | -15 |
| -0.3 | Semifinal | 🇺🇸 USA 1 | 42 | 4♠ | ♦3 | +1 | +0 |
| -0.3 | Semifinal | 🇺🇸 USA 1 | 60 | 2♠ | ♥3 | = | +0 |
| -0.7 | Semifinal | 🇺🇸 USA 1 | 40 | 4♠ | ♥7 | +1 | -1 |
| -0.7 | Semifinal | 🇺🇸 USA 1 | 48 | 4♠ | ♣4 | +1 | -1 |
| -0.7 | Semifinal | 🇺🇸 USA 1 | 59 | 4♥ | ♣8 | +2 | +11 |
| -1.0 | Quarterfinal | 🏴 ENGLAND | 16 | 3♥ | ♠K | -1 | -1 |
| -1.0 | Semifinal | 🇺🇸 USA 1 | 62 | 3♣ | ♣K | -3 | -2 |
| -1.3 | Quarterfinal | 🏴 ENGLAND | 5 | 5♥x | ♣K | -2 | -11 |
| -1.3 | Semifinal | 🇺🇸 USA 1 | 21 | 3♠ | ♦J | -1 | -6 |
| -2.0 | Quarterfinal | 🏴 ENGLAND | 9 | 3♣ | ♣A | -1 | -8 |
| -2.0 | Semifinal | 🇺🇸 USA 1 | 41 | 4♥ | ♦6 | -2 | +0 |
| -2.0 | Final | 🇳🇱 NETHERLANDS | 24 | 6♣ | ♥5 | -2 | +0 |
| -2.1 | Quarterfinal | 🏴 ENGLAND | 11 | 3♣ | ♠10 | = | +1 |
| -2.3 | Semifinal | 🇺🇸 USA 1 | 53 | 4♠ | ♥Q | -1 | -12 |
| -3.0 | Quarterfinal | 🏴 ENGLAND | 15 | 3♠ | ♥A | -2 | -2 |
| -3.0 | Final | 🇳🇱 NETHERLANDS | 30 | 3♦ | ♠10 | -1 | +2 |
| -3.0 | Final | 🇳🇱 NETHERLANDS | 31 | 3NT | ♠10 | -2 | -13 |
| -3.1 | Quarterfinal | 🏴 ENGLAND | 2 | 4♥ | ♠5 | = | +0 |
| -3.3 | Semifinal | 🇺🇸 USA 1 | 39 | 3NT | ♠3 | = | +1 |
| -4.0 | Semifinal | 🇺🇸 USA 1 | 34 | 4♠ | ♦6 | -1 | -9 |
| -4.0 | Semifinal | 🇺🇸 USA 1 | 51 | 3♥ | ♦2 | -1 | +2 |
| -4.7 | Quarterfinal | 🏴 ENGLAND | 12 | 5♠ | ♥K | -1 | -5 |
| -4.7 | Semifinal | 🇺🇸 USA 1 | 50 | 4♠ | ♥6 | -2 | -8 |
| -5.0 | Semifinal | 🇺🇸 USA 1 | 54 | 4♠ | ♦J | -2 | -6 |
| -5.0 | Final | 🇳🇱 NETHERLANDS | 12 | 4♠ | ♦9 | -2 | -5 |
| -5.4 | Quarterfinal | 🏴 ENGLAND | 8 | 5♦ | ♠Q | -1 | +4 |
| -6.0 | Final | 🇳🇱 NETHERLANDS | 9 | 5♣ | ♥A | -1 | -5 |
| -6.0 | Final | 🇳🇱 NETHERLANDS | 10 | 2♦ | ♥A | +1 | -1 |
| -6.0 | Final | 🇳🇱 NETHERLANDS | 32 | 1NT | ♥2 | +1 | -6 |
| -7.0 | Semifinal | 🇺🇸 USA 1 | 19 | 2♣x | ♣5 | -1 | -6 |
| -7.3 | Semifinal | 🇺🇸 USA 1 | 36 | 3NT | ♣7 | +2 | -1 |
| -7.4 | Quarterfinal | 🏴 ENGLAND | 3 | 6♥ | ♦2 | = | +0 |
| -8.3 | Semifinal | 🇺🇸 USA 1 | 46 | 4♥ | ♥2 | -1 | -4 |
| -9.0 | Quarterfinal | 🏴 ENGLAND | 6 | 6♦ | ♦5 | = | +0 |
| -9.0 | Semifinal | 🇺🇸 USA 1 | 56 | 4♥ | ♣K | = | -7 |
| -10.3 | Semifinal | 🇺🇸 USA 1 | 33 | 5♦x | ♠3 | -2 | -9 |
| -10.9 | Quarterfinal | 🏴 ENGLAND | 10 | 3NT | ♥2 | = | -10 |
| -11.0 | Final | 🇳🇱 NETHERLANDS | 26 | 3NT | ♦6 | = | -3 |
| -12.0 | Final | 🇳🇱 NETHERLANDS | 22 | 4♠x | ♥8 | -3 | -5 |
| -19.0 | Final | 🇳🇱 NETHERLANDS | 14 | 3♣x | ♣3 | -8 | -10 |