GROSSACK Zachary · DINKIN
20rank
+78.4Butler · 96 bds
+0.82per board
±5.1swing
+1.32vs par /bd · #20/259
+0.92adjusted /bd
by round
vs par split: bidding +0.72 · play +0.60
Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted +0.92/bd
Card play — on target: opening leads 77.8% #143 of 259 · declarer play 72.4% #95 of 259 · defence 92.9% #42 of 259
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (7) | 63.6% (11) |
| Declarer play | 64.3% (14) | 80.0% (15) |
| Defence | 90.0% (10) | 93.8% (32) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 85.7% (7) · ♦ 66.7% (3) · ♣ 33.3% (3)
vs par by strain: NT +0.81 (31) · a suit +1.57 (65)
vs par by level: part-score +2.41 (32) · game +1.00 (60) · slam -2.50 (4)
By role: declaring +0.87/bd (-0.93 vs par · 54) · defending +0.75/bd (+4.21 vs par · 42)
By vulnerability: vulnerable +1.14/bd (+1.17 vs par · 48) · not vulnerable +0.49/bd (+1.48 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Botta | P.Goncalves – R.Gomez | Closed | 12 | -7.7 | -0.64 | +1.83 |
| Round 2 | G.Botta | M.Mcmanus – J.Thompson | Open | 12 | +24.3 | +2.02 | +2.25 |
| Round 3 | G.Botta | P.Cullin – M.Michielsen | Open | 12 | -10.7 | -0.89 | -4.17 |
| Round 4 | G.Botta | I.Bacalu – C.Teodorescu | Open | 12 | +19.6 | +1.63 | +1.17 |
| Round 5 | G.Botta | P.Carter – P.Newell | Open | 12 | +39.4 | +3.28 | +2.00 |
| Round 6 | G.Botta | N.Bausback – H.Ding | Open | 12 | +16.6 | +1.38 | +2.25 |
| Round 7 | G.Botta | J.Campos – A.Rodrigues | Closed | 12 | +3.9 | +0.33 | +4.00 |
| Round 8 | G.Botta | B.Satyanarayana – K.Nadar | Closed | 12 | -7.0 | -0.58 | +1.25 |
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 |
|---|---|---|---|---|---|---|---|
| +11.4 | Round 5 | NEW ZEALAND MIX | 5 | 3NT | ♠2 | +1 | +1 |
| +10.7 | Round 6 | TAMEWARE | 15 | 3NTx | ♥4 | -3 | +9 |
| +10.5 | Round 4 | ROMANIA | 13 | 6♦ | ♠5 | +1 | +1 |
| +9.5 | Round 3 | VENTIN | 6 | 6♣ | ♠J | = | -11 |
| +9.4 | Round 4 | ROMANIA | 23 | 4♥x | ♥6 | = | +5 |
| +9.3 | Round 7 | DRINTEAM | 10 | 4♠ | ♦A | +1 | +13 |
| +8.8 | Round 2 | CHARLIE | 17 | 4♥ | ♠10 | -2 | +11 |
| +8.3 | Round 4 | ROMANIA | 15 | 3NT | ♠10 | +1 | +4 |
| +7.8 | Round 5 | NEW ZEALAND MIX | 7 | 4♠ | ♦4 | -2 | +13 |
| +7.6 | Round 2 | CHARLIE | 20 | 3NT | ♥5 | -3 | +10 |
| +7.4 | Round 2 | CHARLIE | 15 | 7♦ | ♥Q | = | -2 |
| +7.3 | Round 5 | NEW ZEALAND MIX | 9 | 3♦ | ♥5 | -1 | +6 |
| +6.9 | Round 4 | ROMANIA | 22 | 3NT | ♥8 | = | +7 |
| +6.5 | Round 1 | GAUSS | 8 | 3♣ | ♠5 | = | +9 |
| +5.6 | Round 8 | INDIAN MIXED | 13 | 3♥ | ♠A | -1 | +12 |
| +5.5 | Round 6 | TAMEWARE | 24 | 3♣x | ♥J | -2 | +5 |
| +5.3 | Round 8 | INDIAN MIXED | 22 | 4♠ | ♦6 | = | +11 |
| +5.1 | Round 1 | GAUSS | 1 | 2♥ | ♣K | +1 | +1 |
| +4.8 | Round 5 | NEW ZEALAND MIX | 8 | 5♦ | ♥Q | +1 | +11 |
| +4.6 | Round 5 | NEW ZEALAND MIX | 3 | 3NT | ♣K | +1 | +1 |
| +4.5 | Round 2 | CHARLIE | 13 | 4♠x | ♥J | -1 | +9 |
| +4.5 | Round 7 | DRINTEAM | 12 | 4♥ | ♠Q | -1 | +11 |
| +4.4 | Round 6 | TAMEWARE | 23 | 2♥ | ♠8 | +1 | +7 |
| +4.4 | Round 7 | DRINTEAM | 5 | 4♥ | ♦J | = | +0 |
| +4.3 | Round 6 | TAMEWARE | 13 | 4♥ | ♥5 | -4 | +7 |
| +4.3 | Round 6 | TAMEWARE | 20 | 2NT | ♠4 | -2 | +9 |
| +4.2 | Round 8 | INDIAN MIXED | 17 | 3♠ | ♥J | -1 | +10 |
| +3.6 | Round 5 | NEW ZEALAND MIX | 11 | 4♥ | ♠Q | = | +0 |
| +3.6 | Round 6 | TAMEWARE | 18 | 3NT | ♥3 | +1 | +0 |
| +3.3 | Round 3 | VENTIN | 1 | 3NT | ♣2 | -2 | +5 |
| +2.8 | Round 5 | NEW ZEALAND MIX | 1 | 2♦ | ♦3 | +3 | +4 |
| +2.7 | Round 4 | ROMANIA | 14 | 3NT | ♣10 | +2 | +1 |
| +2.6 | Round 2 | CHARLIE | 16 | 2♠ | ♦5 | +1 | +6 |
| +2.6 | Round 4 | ROMANIA | 18 | 2♥ | ♦2 | -1 | +4 |
| +2.4 | Round 7 | DRINTEAM | 8 | 4♠x | ♦2 | -1 | +11 |
| +2.0 | Round 1 | GAUSS | 6 | 4♥ | ♠J | -1 | +2 |
| +2.0 | Round 1 | GAUSS | 7 | 3NT | ♣5 | = | -1 |
| +2.0 | Round 2 | CHARLIE | 21 | 3♠ | ♦2 | = | +7 |
| +1.9 | Round 2 | CHARLIE | 18 | 1NT | ♥6 | = | +5 |
| +1.9 | Round 5 | NEW ZEALAND MIX | 6 | 3♠ | ♥A | -1 | +6 |
| +1.7 | Round 2 | CHARLIE | 14 | 2♥ | ♣10 | = | +5 |
| +1.5 | Round 2 | CHARLIE | 24 | 3♠x | ♥K | -3 | -10 |
| +1.5 | Round 4 | ROMANIA | 24 | 1NT | ♦A | -2 | +7 |
| +1.5 | Round 6 | TAMEWARE | 16 | 2♥ | ♠K | -1 | +11 |
| +1.3 | Round 3 | VENTIN | 5 | 4♥ | ♦6 | = | +0 |
| +1.3 | Round 4 | ROMANIA | 16 | 4♥ | ♠Q | = | +0 |
| +1.1 | Round 5 | NEW ZEALAND MIX | 12 | 4♠ | ♥A | +1 | +0 |
| +1.0 | Round 6 | TAMEWARE | 17 | 2♠ | ♣2 | = | +0 |
| +1.0 | Round 7 | DRINTEAM | 4 | 3NT | ♥5 | +3 | +1 |
| +0.9 | Round 7 | DRINTEAM | 1 | 4♥ | ♣9 | +2 | +11 |
| +0.8 | Round 3 | VENTIN | 2 | 3NT | ♠Q | +2 | -12 |
| +0.3 | Round 4 | ROMANIA | 21 | 5♥x | ♠A | -3 | +0 |
| +0.2 | Round 1 | GAUSS | 4 | 4♥ | ♣Q | = | +13 |
| +0.2 | Round 2 | CHARLIE | 22 | 2♠ | ♥9 | +1 | +0 |
| +0.2 | Round 3 | VENTIN | 11 | 4♥ | ♠3 | = | +0 |
| -0.0 | Round 1 | GAUSS | 10 | 3NT | ♥10 | = | +2 |
| +0.0 | Round 6 | TAMEWARE | 19 | 3♥ | ♣J | +1 | -2 |
| -0.2 | Round 3 | VENTIN | 8 | 4♥ | ♣J | = | +0 |
| -0.3 | Round 8 | INDIAN MIXED | 19 | 1NT | ♠9 | -2 | +0 |
| -0.3 | Round 8 | INDIAN MIXED | 21 | 2♠ | ♣3 | +2 | -10 |
| -0.4 | Round 7 | DRINTEAM | 2 | 3NT | ♠10 | +2 | +0 |
| -0.4 | Round 8 | INDIAN MIXED | 14 | 4♥ | ♦K | +1 | -14 |
| -0.6 | Round 5 | NEW ZEALAND MIX | 2 | 4♥ | ♠K | = | -13 |
| -0.6 | Round 5 | NEW ZEALAND MIX | 4 | 3NT | ♠6 | +1 | +0 |
| -0.7 | Round 3 | VENTIN | 4 | 1NT | ♥2 | +1 | +0 |
| -0.9 | Round 7 | DRINTEAM | 6 | 2♠ | ♥4 | = | -1 |
| -1.4 | Round 7 | DRINTEAM | 11 | 3NT | ♥4 | +2 | +11 |
| -1.5 | Round 3 | VENTIN | 3 | 3NT | ♦J | -1 | -10 |
| -1.6 | Round 1 | GAUSS | 9 | 4♠ | ♣3 | +1 | -1 |
| -1.6 | Round 8 | INDIAN MIXED | 15 | 3NT | ♠2 | = | +0 |
| -1.7 | Round 2 | CHARLIE | 23 | 4♥ | ♣5 | +2 | -1 |
| -1.8 | Round 6 | TAMEWARE | 14 | 4♥ | ♣J | = | +0 |
| -2.0 | Round 7 | DRINTEAM | 3 | 3♣ | ♥8 | +1 | +9 |
| -2.6 | Round 4 | ROMANIA | 17 | 4♥ | ♦K | = | +0 |
| -2.7 | Round 1 | GAUSS | 11 | 4♥ | ♦Q | +1 | +0 |
| -3.1 | Round 8 | INDIAN MIXED | 23 | 4♥ | ♣10 | +1 | +13 |
| -3.2 | Round 8 | INDIAN MIXED | 18 | 2NT | ♣K | = | -1 |
| -3.5 | Round 7 | DRINTEAM | 9 | 2♠ | ♥3 | +2 | -2 |
| -3.6 | Round 3 | VENTIN | 7 | 4♠ | ♥3 | -3 | -9 |
| -4.0 | Round 8 | INDIAN MIXED | 20 | 1NT | ♠10 | = | +0 |
| -4.1 | Round 8 | INDIAN MIXED | 24 | 3NT | ♠Q | +3 | +0 |
| -4.2 | Round 1 | GAUSS | 3 | 1NTx | ♣4 | -3 | +3 |
| -4.7 | Round 1 | GAUSS | 12 | 3NT | ♦K | -2 | -8 |
| -4.7 | Round 5 | NEW ZEALAND MIX | 10 | 3NTx | ♥2 | -3 | -5 |
| -4.8 | Round 1 | GAUSS | 5 | 6♦ | ♣6 | = | +2 |
| -5.1 | Round 8 | INDIAN MIXED | 16 | 3NT | ♥5 | -2 | -6 |
| -5.5 | Round 1 | GAUSS | 2 | 4♥ | ♣7 | = | +0 |
| -5.6 | Round 3 | VENTIN | 9 | 4♠x | ♥5 | -3 | +3 |
| -5.9 | Round 6 | TAMEWARE | 21 | 5♣ | ♦K | -2 | -8 |
| -6.4 | Round 4 | ROMANIA | 20 | 4♥ | ♠4 | = | +0 |
| -6.7 | Round 3 | VENTIN | 10 | 3NT | ♦5 | -2 | -8 |
| -7.5 | Round 3 | VENTIN | 12 | 3♠ | ♥6 | +1 | -8 |
| -10.4 | Round 7 | DRINTEAM | 7 | 5♥ | ♦A | -2 | -16 |
| -11.0 | Round 6 | TAMEWARE | 22 | 5♦ | ♠J | -2 | -11 |
| -12.2 | Round 2 | CHARLIE | 19 | 5♥x | ♦A | = | -13 |
| -14.9 | Round 4 | ROMANIA | 19 | 3♥x | ♦2 | -4 | -15 |