🇺🇸 GROSSACK Adam · USA1
vs par split: bidding -1.02 · play +0.90
Strength of schedule: opponents averaged -0.30/bd (an easy draw) → opponent-adjusted +0.01/bd
Card play — on target: opening leads 78.1% #62 of 116 · declarer play 85.0% #6 of 116 · defence 89.9% #10 of 116
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 57.1% (7) | 84.0% (25) |
| Declarer play | 85.0% (20) | 85.0% (20) |
| Defence | 86.7% (15) | 90.7% (54) |
Opening leads by suit led: ♠ 50.0% (6) · ♥ 90.0% (10) · ♦ 66.7% (6) · ♣ 90.0% (10)
vs par by strain: NT -0.29 (55) · a suit -0.03 (113)
vs par by level: part-score +0.57 (58) · game +0.11 (93) · slam -3.65 (17)
By role: declaring +0.92/bd (-1.27 vs par · 99) · defending -0.56/bd (+1.55 vs par · 69)
By vulnerability: vulnerable +0.82/bd (+0.32 vs par · 84) · not vulnerable -0.20/bd (-0.55 vs par · 84)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Z.Grossack | D.Cardenas Cardenas – N.Correa Laguna | Open | 14 | +25.0 | +1.79 | +4.07 |
| Round 3 | Z.Grossack | G.Herman – C.Jolly | Closed | 14 | +17.6 | +1.26 | +2.29 |
| Round 4 | Z.Grossack | J.Etchepareborda – S.Rueda | Closed | 14 | -8.8 | -0.63 | -1.43 |
| Round 6 | Z.Grossack | V.Lamoureux – X.Feng | Closed | 14 | +6.7 | +0.48 | -2.50 |
| Round 7 | Z.Grossack | O.Koivu – A.Aalto | Closed | 14 | +0.0 | +0.00 | -0.43 |
| Round 8 | Z.Grossack | G.Donati – G.Percario | Open | 14 | -39.1 | -2.79 | -4.07 |
| Round 10 | Z.Grossack | R.Yamada – K.Kobayashi | Closed | 14 | +15.5 | +1.11 | -1.79 |
| Round 11 | Z.Grossack | A.Roberts – A.Khandelwal | Open | 14 | +16.6 | +1.19 | +0.71 |
| Round 13 | Z.Grossack | O.Rimstedt – M.Rimstedt | Open | 14 | -40.5 | -2.89 | -0.50 |
| Round 16 | Z.Grossack | J.Pieper – F.Hahn | Open | 14 | +35.5 | +2.54 | +3.21 |
| Round 20 | Z.Grossack | B.Fischer – M.Vagi | Open | 14 | +12.2 | +0.87 | -1.43 |
| Round 21 | Z.Grossack | X.Chan – V.Wan | Closed | 14 | +11.6 | +0.83 | +0.50 |
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 |
|---|---|---|---|---|---|---|---|
| +12.3 | Round 1 | 🇨🇴 COLOMBIA | 7 | 4♥ | ♣K | = | +13 |
| +11.7 | Round 16 | 🇩🇪 GERMANY | 15 | 4♥x | ♦7 | -3 | +14 |
| +9.9 | Round 4 | 🇦🇷 ARGENTINA | 26 | 4♥ | ♦3 | -2 | +13 |
| +9.8 | Round 4 | 🇦🇷 ARGENTINA | 19 | 5♦ | ♠A | -1 | +12 |
| +9.6 | Round 11 | 🏴 ENGLAND | 6 | 3NT | ♥2 | = | +10 |
| +9.4 | Round 10 | 🇯🇵 JAPAN | 23 | 4♠ | ♣5 | = | +10 |
| +8.7 | Round 11 | 🏴 ENGLAND | 14 | 6♠ | ♠3 | = | -11 |
| +8.5 | Round 21 | 🇭🇰 CHINA HONG KONG | 5 | 4♠ | ♣Q | -2 | +5 |
| +8.2 | Round 16 | 🇩🇪 GERMANY | 22 | 3NT | ♠7 | = | +0 |
| +8.0 | Round 3 | 🇺🇸 USA2 | 6 | 4♠ | ♣5 | -3 | +9 |
| +7.7 | Round 21 | 🇭🇰 CHINA HONG KONG | 8 | 4♥ | ♠Q | = | +7 |
| +7.5 | Round 16 | 🇩🇪 GERMANY | 16 | 4♥ | ♣3 | = | +0 |
| +7.5 | Round 20 | 🇭🇺 HUNGARY | 17 | 3NT | ♠2 | = | +7 |
| +7.3 | Round 8 | 🇮🇹 ITALY | 28 | 7♣ | ♥Q | = | -2 |
| +7.2 | Round 3 | 🇺🇸 USA2 | 7 | 3♠ | ♣K | = | +2 |
| +7.1 | Round 1 | 🇨🇴 COLOMBIA | 2 | 4♥x | ♥A | = | +10 |
| +6.7 | Round 6 | 🇨🇦 CANADA | 26 | 5♦x | ♣6 | -2 | +0 |
| +6.6 | Round 1 | 🇨🇴 COLOMBIA | 14 | 5♥ | ♠9 | = | +11 |
| +6.4 | Round 16 | 🇩🇪 GERMANY | 21 | 1NT | ♥4 | +1 | +6 |
| +6.3 | Round 7 | 🇫🇮 FINLAND | 10 | 6♥x | ♠10 | -1 | +7 |
| +6.2 | Round 11 | 🏴 ENGLAND | 13 | 4♠ | ♦4 | -1 | +12 |
| +6.1 | Round 16 | 🇩🇪 GERMANY | 27 | 3♦ | ♥K | = | +7 |
| +5.7 | Round 7 | 🇫🇮 FINLAND | 13 | 1NT | ♥2 | -2 | +9 |
| +5.6 | Round 1 | 🇨🇴 COLOMBIA | 10 | 2NT | ♥K | = | +6 |
| +5.5 | Round 3 | 🇺🇸 USA2 | 12 | 3NT | ♠A | +1 | +8 |
| +5.1 | Round 3 | 🇺🇸 USA2 | 2 | 3♠ | ♦K | = | +6 |
| +5.0 | Round 3 | 🇺🇸 USA2 | 4 | 2♦ | ♣4 | -4 | +6 |
| +5.0 | Round 4 | 🇦🇷 ARGENTINA | 23 | 4♥ | ♦2 | -1 | +6 |
| +5.0 | Round 6 | 🇨🇦 CANADA | 18 | 6♦ | ♦4 | = | +0 |
| +4.5 | Round 1 | 🇨🇴 COLOMBIA | 6 | 2♦x | ♦7 | = | +12 |
| +4.5 | Round 8 | 🇮🇹 ITALY | 22 | 6♠ | ♥K | +1 | -11 |
| +4.4 | Round 8 | 🇮🇹 ITALY | 26 | 4♥ | ♠2 | +1 | +0 |
| +4.3 | Round 1 | 🇨🇴 COLOMBIA | 9 | 3NT | ♥3 | +2 | +0 |
| +4.3 | Round 1 | 🇨🇴 COLOMBIA | 12 | 3NT | ♠10 | = | +10 |
| +4.3 | Round 6 | 🇨🇦 CANADA | 21 | 3NT | ♥4 | +1 | +0 |
| +4.3 | Round 10 | 🇯🇵 JAPAN | 18 | 3NT | ♥6 | +2 | -12 |
| +4.1 | Round 16 | 🇩🇪 GERMANY | 18 | 3♠ | ♦Q | -1 | +5 |
| +4.0 | Round 6 | 🇨🇦 CANADA | 23 | 1NT | ♥5 | +2 | +1 |
| +4.0 | Round 11 | 🏴 ENGLAND | 5 | 2♠ | ♣K | = | +6 |
| +4.0 | Round 13 | 🇸🇪 SWEDEN | 12 | 3NTx | ♠2 | -1 | +12 |
| +4.0 | Round 20 | 🇭🇺 HUNGARY | 24 | 3♦ | ♠K | +1 | +13 |
| +3.9 | Round 3 | 🇺🇸 USA2 | 3 | 4♥ | ♥4 | = | +0 |
| +3.9 | Round 10 | 🇯🇵 JAPAN | 17 | 2NT | ♦K | = | +6 |
| +3.8 | Round 10 | 🇯🇵 JAPAN | 24 | 3NT | ♦5 | +2 | +0 |
| +3.5 | Round 16 | 🇩🇪 GERMANY | 26 | 3NT | ♠K | +3 | +2 |
| +3.4 | Round 20 | 🇭🇺 HUNGARY | 15 | 5♣ | ♦8 | -1 | -5 |
| +3.4 | Round 20 | 🇭🇺 HUNGARY | 25 | 3NT | ♥6 | -2 | +5 |
| +3.2 | Round 1 | 🇨🇴 COLOMBIA | 11 | 2♥ | ♦6 | +1 | +0 |
| +3.1 | Round 6 | 🇨🇦 CANADA | 24 | 4♠ | ♣9 | -4 | +2 |
| +3.1 | Round 11 | 🏴 ENGLAND | 9 | 4♦ | ♦6 | +1 | -8 |
| +2.7 | Round 10 | 🇯🇵 JAPAN | 16 | 4♠ | ♥Q | = | +0 |
| +2.6 | Round 7 | 🇫🇮 FINLAND | 3 | 1NT | ♠A | +2 | +2 |
| +2.5 | Round 4 | 🇦🇷 ARGENTINA | 28 | 3NT | ♥Q | +1 | +0 |
| +2.3 | Round 21 | 🇭🇰 CHINA HONG KONG | 3 | 2♠ | ♥9 | +2 | +6 |
| +2.2 | Round 6 | 🇨🇦 CANADA | 17 | 3NT | ♠3 | +2 | -10 |
| +2.2 | Round 21 | 🇭🇰 CHINA HONG KONG | 9 | 1NT | ♦6 | +1 | +1 |
| +2.0 | Round 7 | 🇫🇮 FINLAND | 11 | 2NT | ♠10 | = | -1 |
| +2.0 | Round 16 | 🇩🇪 GERMANY | 24 | 3NT | ♥4 | = | +0 |
| +2.0 | Round 20 | 🇭🇺 HUNGARY | 19 | 3NT | ♠4 | +1 | +1 |
| +1.9 | Round 7 | 🇫🇮 FINLAND | 2 | 5♣ | ♠K | = | +0 |
| +1.9 | Round 7 | 🇫🇮 FINLAND | 14 | 3NT | ♥10 | +1 | +0 |
| +1.9 | Round 20 | 🇭🇺 HUNGARY | 16 | 3NT | ♣Q | +1 | +0 |
| +1.8 | Round 16 | 🇩🇪 GERMANY | 17 | 3NT | ♦8 | +2 | +1 |
| +1.8 | Round 20 | 🇭🇺 HUNGARY | 21 | 4♥ | ♦9 | = | -11 |
| +1.8 | Round 20 | 🇭🇺 HUNGARY | 23 | 3♠ | ♥2 | -1 | -5 |
| +1.7 | Round 3 | 🇺🇸 USA2 | 14 | 4♠ | ♣9 | +1 | +0 |
| +1.7 | Round 11 | 🏴 ENGLAND | 4 | 4♠ | ♣4 | +1 | +13 |
| +1.7 | Round 20 | 🇭🇺 HUNGARY | 27 | 4♠ | ♦A | +1 | +1 |
| +1.6 | Round 11 | 🏴 ENGLAND | 7 | 2♠ | ♦A | = | +1 |
| +1.3 | Round 10 | 🇯🇵 JAPAN | 27 | 2♠ | ♥Q | -1 | +4 |
| +1.2 | Round 21 | 🇭🇰 CHINA HONG KONG | 2 | 2♥ | ♣2 | -1 | +2 |
| +1.1 | Round 16 | 🇩🇪 GERMANY | 19 | 2♥ | ♦4 | +1 | +10 |
| +1.0 | Round 8 | 🇮🇹 ITALY | 20 | 4♠ | ♣8 | +1 | +0 |
| +1.0 | Round 10 | 🇯🇵 JAPAN | 22 | 4♠ | ♦A | +1 | +0 |
| +1.0 | Round 21 | 🇭🇰 CHINA HONG KONG | 11 | 5♣x | ♣2 | -1 | +0 |
| +0.9 | Round 7 | 🇫🇮 FINLAND | 7 | 3♦ | ♣A | -2 | -2 |
| +0.9 | Round 11 | 🏴 ENGLAND | 8 | 2NT | ♠K | -3 | +0 |
| +0.8 | Round 8 | 🇮🇹 ITALY | 27 | 2♦ | ♠8 | = | -2 |
| +0.8 | Round 20 | 🇭🇺 HUNGARY | 20 | 4♠ | ♥A | -1 | +6 |
| +0.7 | Round 4 | 🇦🇷 ARGENTINA | 18 | 3NT | ♠Q | = | -13 |
| +0.7 | Round 6 | 🇨🇦 CANADA | 22 | 3NT | ♠9 | +1 | -1 |
| +0.7 | Round 13 | 🇸🇪 SWEDEN | 8 | 2NT | ♠Q | = | +0 |
| +0.6 | Round 1 | 🇨🇴 COLOMBIA | 5 | 3♦ | ♣8 | -1 | +5 |
| +0.6 | Round 6 | 🇨🇦 CANADA | 15 | 3♥ | ♣10 | +2 | +6 |
| +0.5 | Round 8 | 🇮🇹 ITALY | 16 | 2♠ | ♦9 | = | +0 |
| +0.4 | Round 4 | 🇦🇷 ARGENTINA | 24 | 4♥ | ♠J | +1 | +0 |
| +0.4 | Round 13 | 🇸🇪 SWEDEN | 5 | 4♠ | ♣Q | = | +0 |
| +0.3 | Round 21 | 🇭🇰 CHINA HONG KONG | 10 | 2NT | ♦5 | -1 | +6 |
| +0.1 | Round 1 | 🇨🇴 COLOMBIA | 4 | 6♦ | ♥6 | +1 | +13 |
| +0.1 | Round 16 | 🇩🇪 GERMANY | 28 | 3♣ | ♥4 | -3 | +4 |
| +0.0 | Round 3 | 🇺🇸 USA2 | 13 | 2♠ | ♣J | -1 | +1 |
| +0.0 | Round 10 | 🇯🇵 JAPAN | 15 | 1NT | ♦3 | +1 | +1 |
| +0.0 | Round 10 | 🇯🇵 JAPAN | 20 | 2♠ | ♦7 | = | -6 |
| -0.2 | Round 10 | 🇯🇵 JAPAN | 19 | 4♠ | ♥9 | = | +1 |
| -0.3 | Round 1 | 🇨🇴 COLOMBIA | 13 | 3♥ | ♦8 | = | +0 |
| -0.3 | Round 7 | 🇫🇮 FINLAND | 6 | 4♠ | ♣Q | +1 | +0 |
| -0.4 | Round 21 | 🇭🇰 CHINA HONG KONG | 1 | 3NT | ♠5 | = | +1 |
| -0.4 | Round 21 | 🇭🇰 CHINA HONG KONG | 12 | 3NT | ♥5 | +2 | +0 |
| -0.4 | Round 21 | 🇭🇰 CHINA HONG KONG | 14 | 3NT | ♥7 | +1 | -1 |
| -0.5 | Round 21 | 🇭🇰 CHINA HONG KONG | 7 | 6♣ | ♠9 | +1 | -7 |
| -0.6 | Round 6 | 🇨🇦 CANADA | 20 | 2♥ | ♥2 | -2 | -9 |
| -0.6 | Round 11 | 🏴 ENGLAND | 10 | 6NT | ♥2 | = | +0 |
| -0.6 | Round 11 | 🏴 ENGLAND | 11 | 4♦ | ♥K | +1 | +6 |
| -0.6 | Round 13 | 🇸🇪 SWEDEN | 3 | 3NT | ♠10 | +3 | -1 |
| -0.7 | Round 8 | 🇮🇹 ITALY | 18 | 1NT | ♥A | -2 | -2 |
| -0.7 | Round 13 | 🇸🇪 SWEDEN | 2 | 3♥ | ♣J | +1 | +8 |
| -0.7 | Round 21 | 🇭🇰 CHINA HONG KONG | 4 | 4♠ | ♦Q | = | +0 |
| -0.9 | Round 13 | 🇸🇪 SWEDEN | 10 | 1NT | ♥10 | -2 | -2 |
| -0.9 | Round 20 | 🇭🇺 HUNGARY | 28 | 3NT | ♣6 | +2 | +0 |
| -1.0 | Round 21 | 🇭🇰 CHINA HONG KONG | 6 | 1♠ | ♣K | +1 | +0 |
| -1.2 | Round 7 | 🇫🇮 FINLAND | 8 | 5♣ | ♥A | = | +0 |
| -1.3 | Round 13 | 🇸🇪 SWEDEN | 9 | 2♠ | ♥A | +2 | +6 |
| -1.4 | Round 7 | 🇫🇮 FINLAND | 1 | 3NT | ♠6 | = | +1 |
| -1.4 | Round 10 | 🇯🇵 JAPAN | 25 | 4♠ | ♣3 | -1 | -5 |
| -1.5 | Round 13 | 🇸🇪 SWEDEN | 1 | 3♦ | ♠2 | -1 | +2 |
| -1.6 | Round 3 | 🇺🇸 USA2 | 1 | 4♥ | ♦7 | +1 | +10 |
| -1.6 | Round 7 | 🇫🇮 FINLAND | 12 | 4♠ | ♦A | +2 | -1 |
| -1.7 | Round 6 | 🇨🇦 CANADA | 19 | 6♥ | ♠4 | +1 | -1 |
| -1.9 | Round 11 | 🏴 ENGLAND | 1 | 6♥ | ♠10 | = | +0 |
| -2.0 | Round 4 | 🇦🇷 ARGENTINA | 15 | 4♥ | ♦5 | = | -7 |
| -2.0 | Round 6 | 🇨🇦 CANADA | 28 | 4♥ | ♣3 | = | +0 |
| -2.0 | Round 11 | 🏴 ENGLAND | 2 | 2♠ | ♥5 | -2 | +0 |
| -2.2 | Round 4 | 🇦🇷 ARGENTINA | 27 | 3NT | ♣7 | +4 | +10 |
| -2.3 | Round 3 | 🇺🇸 USA2 | 10 | 2♦ | ♣8 | = | -1 |
| -2.4 | Round 6 | 🇨🇦 CANADA | 27 | 4♠ | ♥6 | = | -3 |
| -2.4 | Round 10 | 🇯🇵 JAPAN | 28 | 3NT | ♦3 | = | +1 |
| -2.5 | Round 6 | 🇨🇦 CANADA | 25 | 2NT | ♥K | -1 | -5 |
| -2.9 | Round 4 | 🇦🇷 ARGENTINA | 21 | 4♥ | ♣K | +1 | +0 |
| -2.9 | Round 20 | 🇭🇺 HUNGARY | 26 | 4♠ | ♥K | +2 | -13 |
| -3.1 | Round 3 | 🇺🇸 USA2 | 5 | 3♦ | ♣Q | -2 | -2 |
| -3.1 | Round 8 | 🇮🇹 ITALY | 15 | 4♥ | ♥6 | +3 | -2 |
| -3.3 | Round 13 | 🇸🇪 SWEDEN | 4 | 4♥ | ♣3 | -2 | -7 |
| -3.4 | Round 10 | 🇯🇵 JAPAN | 21 | 6NT | ♦5 | +1 | -13 |
| -3.5 | Round 7 | 🇫🇮 FINLAND | 9 | 2♠ | ♣10 | +2 | -8 |
| -3.5 | Round 10 | 🇯🇵 JAPAN | 26 | 1♦ | ♠J | = | -12 |
| -3.5 | Round 13 | 🇸🇪 SWEDEN | 6 | 5♣ | ♠6 | -1 | -6 |
| -3.6 | Round 4 | 🇦🇷 ARGENTINA | 25 | 3NT | ♥Q | -1 | -5 |
| -3.8 | Round 3 | 🇺🇸 USA2 | 9 | 3♣ | ♦9 | -2 | +0 |
| -4.0 | Round 3 | 🇺🇸 USA2 | 8 | 3NT | ♣3 | +1 | -1 |
| -4.0 | Round 3 | 🇺🇸 USA2 | 11 | 3NT | ♣Q | -2 | -6 |
| -4.0 | Round 4 | 🇦🇷 ARGENTINA | 17 | 1NT | ♣9 | +2 | -7 |
| -4.0 | Round 20 | 🇭🇺 HUNGARY | 18 | 3NT | ♥5 | -2 | -6 |
| -4.3 | Round 8 | 🇮🇹 ITALY | 19 | 3♥ | ♦2 | -3 | -6 |
| -4.5 | Round 4 | 🇦🇷 ARGENTINA | 20 | 2♠ | ♠7 | +2 | -7 |
| -4.6 | Round 16 | 🇩🇪 GERMANY | 23 | 3NT | ♣8 | -2 | -7 |
| -5.3 | Round 11 | 🏴 ENGLAND | 3 | 5♣x | ♥K | = | -4 |
| -5.3 | Round 16 | 🇩🇪 GERMANY | 20 | 4♥x | ♥3 | = | -5 |
| -5.8 | Round 13 | 🇸🇪 SWEDEN | 14 | 3NTx | ♦K | -2 | -10 |
| -5.9 | Round 4 | 🇦🇷 ARGENTINA | 16 | 4♥ | ♠3 | -4 | -12 |
| -6.0 | Round 7 | 🇫🇮 FINLAND | 5 | 5♥x | ♣A | -4 | -5 |
| -6.1 | Round 1 | 🇨🇴 COLOMBIA | 8 | 4♠ | ♣A | = | -3 |
| -6.5 | Round 8 | 🇮🇹 ITALY | 23 | 3NT | ♣Q | = | -10 |
| -6.5 | Round 13 | 🇸🇪 SWEDEN | 11 | 4♠x | ♦2 | -3 | -9 |
| -6.6 | Round 1 | 🇨🇴 COLOMBIA | 1 | 3NT | ♣2 | -1 | -10 |
| -7.0 | Round 13 | 🇸🇪 SWEDEN | 13 | 6♥ | ♠2 | = | +0 |
| -7.1 | Round 16 | 🇩🇪 GERMANY | 25 | 5♦x | ♠A | -5 | +8 |
| -7.3 | Round 7 | 🇫🇮 FINLAND | 4 | 4♥x | ♥7 | -1 | -8 |
| -8.2 | Round 21 | 🇭🇰 CHINA HONG KONG | 13 | 5♥ | ♦K | -2 | -13 |
| -8.3 | Round 20 | 🇭🇺 HUNGARY | 22 | 6♥ | ♦J | -2 | -13 |
| -8.8 | Round 11 | 🏴 ENGLAND | 12 | 6♥ | ♠A | +1 | -15 |
| -9.0 | Round 8 | 🇮🇹 ITALY | 24 | 7♠ | ♣5 | = | +0 |
| -9.9 | Round 8 | 🇮🇹 ITALY | 21 | 5♦x | ♠A | -3 | +0 |
| -10.6 | Round 1 | 🇨🇴 COLOMBIA | 3 | 4♣x | ♣6 | -5 | -10 |
| -10.7 | Round 6 | 🇨🇦 CANADA | 16 | 1♠x | ♠A | = | -15 |
| -11.1 | Round 8 | 🇮🇹 ITALY | 25 | 7♣x | ♥A | -3 | -9 |
| -12.0 | Round 4 | 🇦🇷 ARGENTINA | 22 | 4♠x | ♠2 | +1 | -10 |
| -13.0 | Round 8 | 🇮🇹 ITALY | 17 | 3♥x | ♥4 | = | -13 |
| -14.5 | Round 13 | 🇸🇪 SWEDEN | 7 | 6♥ | ♠8 | = | +0 |