GROSSACK Zachary · DINKIN
9rank
+92.2Butler · 88 bds
+1.05per board
±5.5swing
+0.56vs par /bd · #27/92
+1.23adjusted /bd
by round
vs par split: bidding +0.20 · play +0.35
Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted +1.23/bd
Card play — on target: opening leads 76.5% #68 of 92 · declarer play 86.7% #11 of 92 · defence 92.1% #15 of 92
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 25.0% (4) | 92.3% (13) |
| Declarer play | 75.0% (8) | 90.9% (22) |
| Defence | 100.0% (10) | 89.3% (28) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 80.0% (5) · ♦ 100.0% (3) · ♣ 66.7% (3)
vs par by strain: NT +0.62 (21) · a suit +0.54 (67)
vs par by level: part-score +2.96 (25) · game -0.18 (50) · slam -1.23 (13)
By role: declaring +1.06/bd (-1.98 vs par · 50) · defending +1.03/bd (+3.90 vs par · 38)
By vulnerability: vulnerable +1.57/bd (+0.73 vs par · 44) · not vulnerable +0.53/bd (+0.39 vs par · 44)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Botta | I.Miquelez Caballero – F.Guerra | Open | 8 | +22.3 | +2.79 | -1.00 |
| Round 2 | G.Botta | A.Kowalski – C.Bortoletti | Closed | 8 | +0.2 | +0.03 | +1.25 |
| Round 3 | G.Botta | T.Pokorni – V.Jacubovski | Closed | 8 | +30.3 | +3.79 | +3.12 |
| Round 4 | G.Botta | K.Mak – T.Tang | Open | 8 | +34.2 | +4.28 | +0.00 |
| Round 5 | G.Botta | M.Sainz De Vicuna – L.Lantaron | Open | 8 | +17.1 | +2.14 | +0.12 |
| Round 6 | G.Botta | M.Pauly – O.Ruthenberg | Open | 8 | +16.5 | +2.06 | +6.12 |
| Round 7 | G.Botta | T.Ramani – B.Kohli | Closed | 8 | +0.7 | +0.09 | +1.00 |
| Round 8 | G.Botta | C.Teodorescu – I.Bacalu | Open | 8 | -11.0 | -1.38 | -3.62 |
| Round 9 | G.Botta | A.Meyerson – E.Meyerson | Open | 8 | -7.2 | -0.90 | -0.38 |
| Round 10 | G.Botta | K.Martensen-Larsen – F.Poulsen | Open | 8 | +6.8 | +0.85 | +1.88 |
| Round 11 | G.Botta | G.Osborne – F.Hinden | Open | 8 | -17.7 | -2.21 | -2.38 |
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 |
|---|---|---|---|---|---|---|---|
| +12.9 | Round 2 | BORTOLETTI | 16 | 6♠x | ♦K | = | +16 |
| +12.8 | Round 6 | TAMEWARE | 15 | 3NTx | ♥10 | -4 | +14 |
| +10.5 | Round 8 | ROMANIA | 28 | 6♠ | ♥K | = | +1 |
| +9.9 | Round 4 | GEELY AUTOMOBILE | 28 | 4♠ | ♥5 | -1 | +11 |
| +9.7 | Round 4 | GEELY AUTOMOBILE | 29 | 5♥ | ♣A | -2 | +10 |
| +9.4 | Round 2 | BORTOLETTI | 12 | 3NT | ♥4 | = | +3 |
| +8.9 | Round 1 | ALGO DIVERTIDO | 4 | 4♥ | ♦5 | +1 | +1 |
| +8.9 | Round 4 | GEELY AUTOMOBILE | 31 | 6♣ | ♠Q | +1 | -13 |
| +8.9 | Round 10 | DENMARK MIXED | 13 | 4♦x | ♠A | -2 | +7 |
| +8.7 | Round 3 | MEDANOS | 18 | 3NT | ♥5 | = | +0 |
| +8.6 | Round 6 | TAMEWARE | 9 | 4♥ | ♠K | = | +7 |
| +8.4 | Round 9 | SWISS MIXED | 2 | 4♥ | ♠A | +1 | +4 |
| +7.9 | Round 10 | DENMARK MIXED | 11 | 6♠ | ♣5 | -1 | +11 |
| +7.9 | Round 11 | NETTLETON | 17 | 4♥ | ♦K | = | +3 |
| +7.3 | Round 3 | MEDANOS | 19 | 5♥ | ♠A | = | +1 |
| +7.1 | Round 4 | GEELY AUTOMOBILE | 30 | 3NT | ♠8 | -1 | +10 |
| +6.9 | Round 3 | MEDANOS | 20 | 3NT | ♥9 | -2 | +13 |
| +6.6 | Round 1 | ALGO DIVERTIDO | 7 | 2NT | ♠A | -1 | +6 |
| +5.8 | Round 6 | TAMEWARE | 14 | 7♥x | ♠K | -3 | +0 |
| +5.7 | Round 5 | MSV | 6 | 6♣ | ♥2 | +1 | -11 |
| +4.6 | Round 10 | DENMARK MIXED | 12 | 6♣ | ♦A | = | +0 |
| +4.3 | Round 1 | ALGO DIVERTIDO | 2 | 3NT | ♣J | +1 | +1 |
| +4.3 | Round 6 | TAMEWARE | 11 | 5♦x | ♥K | -1 | +9 |
| +4.2 | Round 7 | INDIAN MIXED | 19 | 3♠ | ♣J | -2 | +9 |
| +3.9 | Round 7 | INDIAN MIXED | 20 | 2♠ | ♥A | +1 | +6 |
| +3.8 | Round 5 | MSV | 1 | 6♦ | ♥J | -1 | +10 |
| +3.7 | Round 7 | INDIAN MIXED | 18 | 3♠ | ♠K | -1 | +5 |
| +3.5 | Round 5 | MSV | 2 | 3NT | ♦3 | -2 | +6 |
| +3.3 | Round 1 | ALGO DIVERTIDO | 8 | 6♣x | ♦A | -2 | +0 |
| +3.3 | Round 7 | INDIAN MIXED | 23 | 4♥ | ♦6 | -1 | +6 |
| +3.1 | Round 3 | MEDANOS | 23 | 3♦ | ♠2 | = | +6 |
| +3.1 | Round 5 | MSV | 3 | 4♥ | ♦2 | = | +6 |
| +2.9 | Round 3 | MEDANOS | 22 | 3♦ | ♥10 | -1 | +3 |
| +2.5 | Round 3 | MEDANOS | 21 | 4♠ | ♦Q | +1 | +1 |
| +2.4 | Round 5 | MSV | 8 | 1NT | ♦7 | +2 | +0 |
| +2.3 | Round 4 | GEELY AUTOMOBILE | 25 | 2♠ | ♦10 | = | +0 |
| +2.2 | Round 1 | ALGO DIVERTIDO | 5 | 4♠ | ♦4 | = | +0 |
| +1.9 | Round 5 | MSV | 7 | 2NT | ♠2 | -1 | +5 |
| +1.3 | Round 11 | NETTLETON | 23 | 1NT | ♦A | = | +1 |
| +1.1 | Round 2 | BORTOLETTI | 11 | 2♠ | ♦J | +1 | +7 |
| +1.1 | Round 8 | ROMANIA | 25 | 4♠ | ♦A | = | +0 |
| +0.9 | Round 1 | ALGO DIVERTIDO | 3 | 3♠ | ♣J | = | +0 |
| +0.9 | Round 3 | MEDANOS | 24 | 2♠ | ♦9 | = | +0 |
| +0.9 | Round 4 | GEELY AUTOMOBILE | 27 | 4♠ | ♦6 | = | +0 |
| +0.9 | Round 9 | SWISS MIXED | 3 | 4♠x | ♥K | -1 | +11 |
| +0.6 | Round 9 | SWISS MIXED | 1 | 3♥ | ♦A | -2 | +0 |
| +0.4 | Round 2 | BORTOLETTI | 9 | 4♠ | ♦5 | = | +0 |
| +0.4 | Round 10 | DENMARK MIXED | 10 | 2NT | ♣10 | = | +6 |
| +0.3 | Round 2 | BORTOLETTI | 15 | 1♠ | ♦4 | +2 | +7 |
| +0.0 | Round 8 | ROMANIA | 26 | 3♦ | ♠6 | = | +1 |
| -0.1 | Round 10 | DENMARK MIXED | 16 | 3♣ | ♦J | +1 | +0 |
| -0.2 | Round 8 | ROMANIA | 31 | 4♠ | ♥K | +1 | +0 |
| -0.5 | Round 4 | GEELY AUTOMOBILE | 26 | 4♠ | ♥9 | +2 | -13 |
| -0.5 | Round 8 | ROMANIA | 32 | 4♥ | ♥8 | +1 | +0 |
| -0.7 | Round 6 | TAMEWARE | 10 | 4♠ | ♦J | +1 | +13 |
| -0.8 | Round 9 | SWISS MIXED | 4 | 4♠ | ♣7 | -1 | -6 |
| -0.8 | Round 11 | NETTLETON | 24 | 2♠ | ♥J | = | +1 |
| -1.2 | Round 5 | MSV | 4 | 3NT | ♥5 | +4 | -12 |
| -1.3 | Round 9 | SWISS MIXED | 8 | 4NT | ♠5 | +1 | +0 |
| -1.5 | Round 1 | ALGO DIVERTIDO | 6 | 3NT | ♥2 | -1 | -5 |
| -1.5 | Round 11 | NETTLETON | 18 | 4♥ | ♣Q | +1 | +0 |
| -1.6 | Round 7 | INDIAN MIXED | 21 | 4♠ | ♥Q | -1 | -5 |
| -1.7 | Round 7 | INDIAN MIXED | 24 | 4NT | ♦3 | -1 | -14 |
| -2.0 | Round 2 | BORTOLETTI | 14 | 4♦ | ♥A | = | +0 |
| -2.0 | Round 3 | MEDANOS | 17 | 4♥ | ♣6 | = | +1 |
| -2.1 | Round 5 | MSV | 5 | 2♥ | ♣4 | -2 | -3 |
| -2.1 | Round 8 | ROMANIA | 27 | 5♣ | ♠8 | = | +0 |
| -2.1 | Round 10 | DENMARK MIXED | 15 | 4♥ | ♣K | +2 | -1 |
| -2.3 | Round 7 | INDIAN MIXED | 22 | 3♠ | ♥2 | +1 | +10 |
| -2.4 | Round 1 | ALGO DIVERTIDO | 1 | 6♠ | ♥K | -1 | -11 |
| -2.6 | Round 6 | TAMEWARE | 16 | 3♥ | ♥A | +1 | -1 |
| -2.6 | Round 10 | DENMARK MIXED | 9 | 4♥ | ♣A | = | +1 |
| -3.3 | Round 11 | NETTLETON | 20 | 2♥ | ♦Q | -2 | -2 |
| -3.6 | Round 9 | SWISS MIXED | 6 | 3NT | ♠J | +1 | +0 |
| -4.1 | Round 4 | GEELY AUTOMOBILE | 32 | 3NT | ♦2 | -1 | -5 |
| -4.8 | Round 11 | NETTLETON | 22 | 6♣ | ♥A | = | -11 |
| -5.0 | Round 6 | TAMEWARE | 13 | 6♣ | ♠10 | +1 | +12 |
| -5.6 | Round 9 | SWISS MIXED | 7 | 4♠ | ♥J | -1 | -6 |
| -5.8 | Round 9 | SWISS MIXED | 5 | 3NT | ♦2 | -1 | -6 |
| -6.7 | Round 6 | TAMEWARE | 12 | 4♠x | ♣K | = | -5 |
| -7.0 | Round 11 | NETTLETON | 21 | 3NT | ♠Q | = | +1 |
| -8.8 | Round 7 | INDIAN MIXED | 17 | 4♠x | ♥Q | -4 | -9 |
| -9.5 | Round 11 | NETTLETON | 19 | 4♠x | ♠4 | = | -12 |
| -9.6 | Round 2 | BORTOLETTI | 13 | 4♠ | ♣Q | -2 | -13 |
| -9.7 | Round 8 | ROMANIA | 29 | 6♥ | ♣2 | -2 | -20 |
| -10.1 | Round 8 | ROMANIA | 30 | 4NT | ♠J | -1 | -11 |
| -10.2 | Round 10 | DENMARK MIXED | 14 | 5♦x | ♥3 | -4 | -9 |
| -12.3 | Round 2 | BORTOLETTI | 10 | 4♠x | ♣3 | -4 | -10 |