🇺🇸 GROSSACK Zachary · USA U26
vs par split: bidding -1.21 · play +0.62
Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.83/bd
Card play — on target: opening leads 83.3% #51 of 79 · declarer play 80.0% #38 of 78 · defence 92.3% #7 of 79
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 100.0% (4) |
| Declarer play | 60.0% (5) | 100.0% (5) |
| Defence | 83.3% (6) | 100.0% (7) |
Opening leads by suit led: ♠ 66.7% (3) · ♦ 100.0% (2) · ♣ 100.0% (1)
vs par by strain: NT -2.37 (19) · a suit +0.87 (23)
vs par by level: part-score -0.92 (13) · game +0.00 (26) · slam -4.33 (3)
By role: declaring +0.86/bd (-2.21 vs par · 29) · defending +0.95/bd (+3.00 vs par · 13)
By vulnerability: vulnerable +0.53/bd (-0.19 vs par · 21) · not vulnerable +1.25/bd (-1.00 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | K.Rosenberg | M.Stepper – J.Pieper | Closed | 6 | +16.1 | +2.68 | +3.00 |
| Round 3 | K.Rosenberg | R.Gabriel – E.Sykorova | Open | 6 | +13.4 | +2.23 | -2.00 |
| Round 4 | K.Rosenberg | K.Stefanec – M.Ferenca | Closed | 6 | +1.3 | +0.22 | -1.17 |
| Round 5 | K.Rosenberg | S.Van Oosten – J.Freeman | Open | 6 | +7.0 | +1.17 | -3.83 |
| Round 6 | K.Rosenberg | C.Bens – M.Roches | Closed | 6 | +4.4 | +0.73 | -0.17 |
| Round 7 | K.Rosenberg | S.Clementsson – A.Sandin | Closed | 6 | +3.7 | +0.62 | -0.17 |
| Round 8 | K.Rosenberg | A.Gaiotti – S.Scata | Closed | 6 | -8.6 | -1.43 | +0.17 |
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 4 | 🇭🇷 CROATIA U26 | 22 | 4♥x | ♠9 | -2 | +12 |
| +12.1 | Round 3 | 🇸🇰 SLOVAKIA | 18 | 6♦ | ♠A | = | +0 |
| +11.7 | Round 6 | 🇫🇷 FRANCE U22 | 1 | 4♥ | ♠K | = | +12 |
| +7.7 | Round 5 | BRIDGENOOBS | 29 | 3NT | ♥4 | -2 | +8 |
| +6.9 | Round 2 | 🇩🇪 GERMANY U26 | 11 | 3NT | ♠Q | = | +6 |
| +6.9 | Round 7 | BRIDGESTARS | 7 | 6♠ | ♣5 | = | +0 |
| +5.7 | Round 8 | 🇮🇹 ITALY U26 GREEN | 17 | 4♠ | ♠5 | +1 | +0 |
| +4.7 | Round 2 | 🇩🇪 GERMANY U26 | 10 | 4♠ | ♦7 | -1 | +12 |
| +4.1 | Round 2 | 🇩🇪 GERMANY U26 | 12 | 3♥ | ♥4 | -2 | +0 |
| +3.9 | Round 3 | 🇸🇰 SLOVAKIA | 14 | 5♦ | ♠A | = | +0 |
| +3.6 | Round 3 | 🇸🇰 SLOVAKIA | 17 | 4♠ | ♣3 | +1 | +1 |
| +3.2 | Round 6 | 🇫🇷 FRANCE U22 | 3 | 3♠ | ♥J | -2 | -1 |
| +3.0 | Round 2 | 🇩🇪 GERMANY U26 | 8 | 4♥ | ♦K | = | +0 |
| +2.7 | Round 4 | 🇭🇷 CROATIA U26 | 24 | 3♥ | ♦4 | +1 | +2 |
| +1.5 | Round 4 | 🇭🇷 CROATIA U26 | 23 | 1NT | ♥5 | +1 | +1 |
| +1.5 | Round 7 | BRIDGESTARS | 8 | 1NT | ♠7 | -2 | +1 |
| +1.3 | Round 6 | 🇫🇷 FRANCE U22 | 6 | 3NT | ♦4 | = | +0 |
| +1.1 | Round 2 | 🇩🇪 GERMANY U26 | 9 | 4♠ | ♥7 | = | +0 |
| +1.0 | Round 5 | BRIDGENOOBS | 30 | 1NT | ♦4 | +2 | -7 |
| +0.9 | Round 5 | BRIDGENOOBS | 28 | 1NT | ♦6 | +2 | +1 |
| +0.9 | Round 7 | BRIDGESTARS | 10 | 3♠ | ♦4 | = | +6 |
| +0.2 | Round 4 | 🇭🇷 CROATIA U26 | 20 | 3NT | ♠2 | +2 | +0 |
| +0.2 | Round 8 | 🇮🇹 ITALY U26 GREEN | 18 | 4♥ | ♣2 | = | +0 |
| +0.0 | Round 5 | BRIDGENOOBS | 26 | 3NT | ♠A | -2 | -13 |
| -0.1 | Round 3 | 🇸🇰 SLOVAKIA | 16 | 3NT | ♠5 | +2 | +0 |
| -0.4 | Round 3 | 🇸🇰 SLOVAKIA | 13 | 4♥ | ♠3 | = | +0 |
| -0.7 | Round 7 | BRIDGESTARS | 12 | 3♥ | ♦K | -1 | -4 |
| -0.9 | Round 5 | BRIDGENOOBS | 27 | 3NT | ♥3 | +1 | -1 |
| -1.2 | Round 7 | BRIDGESTARS | 11 | 3NT | ♥K | -1 | -4 |
| -1.5 | Round 8 | 🇮🇹 ITALY U26 GREEN | 16 | 3NT | ♦K | = | -3 |
| -1.6 | Round 6 | 🇫🇷 FRANCE U22 | 4 | 1NT | ♦2 | -1 | -1 |
| -1.7 | Round 5 | BRIDGENOOBS | 25 | 5♣ | ♦Q | +1 | -11 |
| -3.6 | Round 8 | 🇮🇹 ITALY U26 GREEN | 14 | 3♠ | ♣A | -1 | -4 |
| -3.7 | Round 2 | 🇩🇪 GERMANY U26 | 7 | 4♠ | ♣A | = | +0 |
| -3.7 | Round 7 | BRIDGESTARS | 9 | 3NT | ♠7 | +2 | +0 |
| -4.1 | Round 6 | 🇫🇷 FRANCE U22 | 5 | 1NT | ♠3 | +1 | -1 |
| -4.3 | Round 8 | 🇮🇹 ITALY U26 GREEN | 15 | 2♦ | ♣A | -1 | -5 |
| -5.1 | Round 8 | 🇮🇹 ITALY U26 GREEN | 13 | 4♥ | ♦3 | +1 | +13 |
| -5.7 | Round 3 | 🇸🇰 SLOVAKIA | 15 | 6♠ | ♥A | -2 | -13 |
| -6.1 | Round 6 | 🇫🇷 FRANCE U22 | 2 | 3NT | ♥K | -1 | -10 |
| -7.3 | Round 4 | 🇭🇷 CROATIA U26 | 19 | 3NT | ♣2 | -1 | -10 |
| -8.1 | Round 4 | 🇭🇷 CROATIA U26 | 21 | 3NT | ♦2 | -2 | -12 |