ZACK EFRAIMSSON Anna · GOLDBERG
58rank
+29.9Butler · 112 bds
+0.27per board
±4.0swing
+0.28vs par /bd · #86/221
+0.36adjusted /bd
by round
vs par split: bidding -0.05 · play +0.33
Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted +0.36/bd
Card play — on target: opening leads 80.0% #156 of 221 · declarer play 82.4% #46 of 221 · defence 90.2% #22 of 221
Bidding activity — not a pass: 45.2% #64 of 221 (138/305)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 72.7% (11) | 84.2% (19) |
| Declarer play | 75.0% (4) | 84.6% (13) |
| Defence | 75.0% (16) | 95.6% (45) |
Opening leads by suit led: ♠ 72.7% (11) · ♥ 100.0% (7) · ♦ 83.3% (6) · ♣ 66.7% (6)
vs par by strain: NT +0.12 (32) · a suit +0.34 (80)
vs par by level: part-score +0.31 (45) · game +0.46 (65) · slam -6.50 (2)
By role: declaring +0.04/bd (-2.77 vs par · 51) · defending +0.46/bd (+2.82 vs par · 61)
By vulnerability: vulnerable +0.05/bd (-0.59 vs par · 56) · not vulnerable +0.49/bd (+1.14 vs par · 56)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | B.Efraimsson | N.Selway – K.Preddy | Open | 14 | -1.0 | -0.07 | -1.43 |
| Round 2 | B.Efraimsson | L.Marino – R.Pisani | Open | 14 | -16.3 | -1.16 | +0.86 |
| Round 3 | B.Efraimsson | O.Haramati – A.Brajovic | Open | 14 | +3.0 | +0.21 | -2.93 |
| Round 4 | B.Efraimsson | W.Wang – G.Hampson | Open | 14 | +4.4 | +0.31 | +3.50 |
| Round 5 | B.Efraimsson | I.Yadlin – O.Moran Ohayon | Open | 14 | +19.1 | +1.36 | +0.29 |
| Round 6 | B.Efraimsson | I.Ozbay – F.Bernal | Open | 14 | -12.3 | -0.88 | -2.43 |
| Round 7 | B.Efraimsson | S.Li – H.Wong | Open | 14 | +14.3 | +1.02 | +2.43 |
| Round 8 | B.Efraimsson | I.Ozkok Kocaman – K.Ozkurt | Open | 14 | +18.7 | +1.34 | +1.93 |
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 |
|---|---|---|---|---|---|---|---|
| +11.2 | Round 5 | BEKKER | 3 | 5♠ | ♥5 | -1 | +13 |
| +11.0 | Round 5 | BEKKER | 1 | 5♦x | ♠A | -6 | +9 |
| +10.0 | Round 1 | TEAM LLAMA | 3 | 4♠x | ♣Q | -4 | +7 |
| +8.6 | Round 6 | BERNAL | 28 | 3NT | ♠5 | +1 | +0 |
| +7.8 | Round 2 | SPEZIA BRIDGE | 22 | 4♠ | ♦5 | +2 | +13 |
| +7.7 | Round 8 | FRIENDS | 23 | 4♠x | ♥K | = | +7 |
| +7.6 | Round 7 | BANANA | 9 | 3NT | ♠8 | -4 | +6 |
| +6.8 | Round 7 | BANANA | 1 | 5♣x | ♠A | -3 | +12 |
| +6.0 | Round 3 | OFER | 4 | 2♥ | ♠6 | -1 | +6 |
| +6.0 | Round 8 | FRIENDS | 22 | 2NT | ♣8 | = | +1 |
| +5.4 | Round 2 | SPEZIA BRIDGE | 26 | 3♣ | ♠5 | -3 | +9 |
| +5.3 | Round 8 | FRIENDS | 26 | 2♥ | ♠A | -2 | +10 |
| +5.1 | Round 4 | ZHANG | 17 | 5♦ | ♠K | -1 | +11 |
| +4.7 | Round 8 | FRIENDS | 16 | 3♣ | ♥K | = | +3 |
| +4.5 | Round 2 | SPEZIA BRIDGE | 23 | 3♥ | ♠5 | +1 | +10 |
| +4.3 | Round 6 | BERNAL | 20 | 1♠ | ♦T | -2 | +2 |
| +4.3 | Round 7 | BANANA | 3 | 3NT | ♠6 | +1 | +7 |
| +3.8 | Round 3 | OFER | 8 | 4♠ | ♥T | +1 | +0 |
| +3.8 | Round 6 | BERNAL | 19 | 5♣ | ♥7 | = | +0 |
| +3.7 | Round 8 | FRIENDS | 17 | 2♥ | ♣4 | -1 | +11 |
| +3.6 | Round 3 | OFER | 10 | 4♥ | ♠A | = | -10 |
| +3.6 | Round 4 | ZHANG | 18 | 4♥ | ♠J | -1 | +5 |
| +3.0 | Round 4 | ZHANG | 15 | 4♥ | ♠9 | +1 | +6 |
| +2.7 | Round 4 | ZHANG | 23 | 4♣ | ♥7 | -1 | +5 |
| +2.4 | Round 8 | FRIENDS | 27 | 4♠ | ♦A | -3 | +2 |
| +2.3 | Round 3 | OFER | 9 | 3NT | ♦Q | = | -1 |
| +2.2 | Round 7 | BANANA | 11 | 3♠ | ♥8 | +1 | +2 |
| +2.1 | Round 3 | OFER | 5 | 4♠ | ♦K | = | +0 |
| +2.0 | Round 1 | TEAM LLAMA | 12 | 3NT | ♦2 | +1 | -1 |
| +1.8 | Round 1 | TEAM LLAMA | 2 | 3♠ | ♦7 | +1 | +1 |
| +1.6 | Round 7 | BANANA | 14 | 4♥ | ♠4 | +1 | +0 |
| +1.5 | Round 6 | BERNAL | 25 | 6♥ | ♣5 | = | +0 |
| +1.4 | Round 2 | SPEZIA BRIDGE | 19 | 5♦ | ♠Q | -1 | +6 |
| +1.3 | Round 7 | BANANA | 5 | 5♦ | ♠4 | +1 | +11 |
| +1.2 | Round 1 | TEAM LLAMA | 13 | 2♠ | ♥A | = | -10 |
| +1.2 | Round 5 | BEKKER | 7 | 2♥ | ♦T | -2 | +2 |
| +1.2 | Round 8 | FRIENDS | 18 | 4♥ | ♣A | +2 | +9 |
| +1.1 | Round 5 | BEKKER | 5 | 3NT | ♦7 | +1 | +1 |
| +1.0 | Round 5 | BEKKER | 4 | 4♥ | ♠3 | +1 | +1 |
| +1.0 | Round 7 | BANANA | 12 | 1NT | ♣Q | +3 | -10 |
| +0.9 | Round 1 | TEAM LLAMA | 8 | 4♠ | ♣Q | = | -1 |
| +0.7 | Round 1 | TEAM LLAMA | 14 | 2♠ | ♥K | -2 | +7 |
| +0.7 | Round 3 | OFER | 7 | 3NT | ♣9 | +1 | -1 |
| +0.6 | Round 5 | BEKKER | 6 | 4♠ | ♦J | +1 | +0 |
| +0.6 | Round 6 | BERNAL | 27 | 4♥ | ♦7 | +1 | +0 |
| +0.5 | Round 4 | ZHANG | 22 | 1NT | ♣5 | +3 | +6 |
| +0.5 | Round 8 | FRIENDS | 21 | 3NT | ♥5 | +1 | +0 |
| +0.4 | Round 5 | BEKKER | 13 | 4♥ | ♥9 | = | +0 |
| +0.3 | Round 1 | TEAM LLAMA | 4 | 3♣ | ♣3 | = | +0 |
| +0.3 | Round 5 | BEKKER | 11 | 1NT | ♦J | +2 | -6 |
| +0.3 | Round 6 | BERNAL | 22 | 4♠ | ♥4 | +1 | +0 |
| +0.3 | Round 7 | BANANA | 2 | 3NT | ♣2 | +3 | +14 |
| +0.2 | Round 1 | TEAM LLAMA | 10 | 1NT | ♦Q | +2 | -1 |
| +0.2 | Round 4 | ZHANG | 16 | 4♥ | ♣A | +1 | +0 |
| +0.2 | Round 4 | ZHANG | 25 | 1NT | ♣6 | +1 | +1 |
| +0.2 | Round 5 | BEKKER | 14 | 3♥ | ♠A | +1 | -6 |
| +0.2 | Round 7 | BANANA | 4 | 4♠ | ♥7 | -1 | -5 |
| -0.0 | Round 1 | TEAM LLAMA | 6 | 2♥ | ♠K | -1 | -2 |
| -0.1 | Round 2 | SPEZIA BRIDGE | 25 | 3NT | ♣J | +2 | +0 |
| -0.1 | Round 3 | OFER | 2 | 4♠ | ♣Q | +2 | -12 |
| -0.2 | Round 4 | ZHANG | 19 | 2♥ | ♦A | +2 | +6 |
| -0.2 | Round 4 | ZHANG | 28 | 2♠ | ♥A | -1 | +1 |
| -0.2 | Round 5 | BEKKER | 9 | 2NT | ♠7 | = | -7 |
| -0.2 | Round 5 | BEKKER | 10 | 1NT | ♠2 | +2 | +10 |
| -0.2 | Round 6 | BERNAL | 26 | 3♠ | ♣A | -1 | +0 |
| -0.3 | Round 2 | SPEZIA BRIDGE | 28 | 4♠ | ♥2 | +1 | -13 |
| -0.3 | Round 8 | FRIENDS | 20 | 4♠ | ♥Q | -1 | -7 |
| -0.4 | Round 1 | TEAM LLAMA | 11 | 1NT | ♦4 | +1 | +0 |
| -0.5 | Round 7 | BANANA | 8 | 3NT | ♠2 | = | +11 |
| -0.6 | Round 3 | OFER | 14 | 2♦ | ♣Q | -2 | -7 |
| -0.6 | Round 6 | BERNAL | 23 | 4♥ | ♠A | = | +0 |
| -0.6 | Round 8 | FRIENDS | 25 | 2♣ | ♣4 | -1 | -6 |
| -1.0 | Round 2 | SPEZIA BRIDGE | 17 | 5♦ | ♣Q | = | +11 |
| -1.0 | Round 3 | OFER | 13 | 2♥ | ♥A | = | -1 |
| -1.0 | Round 4 | ZHANG | 24 | 4♠ | ♣Q | = | +1 |
| -1.0 | Round 4 | ZHANG | 27 | 3NT | ♣T | +3 | +11 |
| -1.0 | Round 8 | FRIENDS | 24 | 3NT | ♠2 | +1 | -1 |
| -1.1 | Round 7 | BANANA | 6 | 3♦ | ♠2 | = | -6 |
| -1.2 | Round 3 | OFER | 11 | 3♠ | ♥5 | = | +0 |
| -1.3 | Round 1 | TEAM LLAMA | 5 | 3♦ | ♥6 | = | +5 |
| -1.3 | Round 3 | OFER | 6 | 1NT | ♠2 | = | +1 |
| -1.4 | Round 3 | OFER | 12 | 3♠ | ♥Q | = | +0 |
| -1.4 | Round 6 | BERNAL | 16 | 3♦ | ♥J | = | +1 |
| -1.5 | Round 2 | SPEZIA BRIDGE | 24 | 2♥ | ♠7 | -2 | +0 |
| -1.5 | Round 4 | ZHANG | 26 | 4♠ | ♣J | +1 | +0 |
| -1.5 | Round 5 | BEKKER | 2 | 3NT | ♠9 | = | +1 |
| -1.6 | Round 8 | FRIENDS | 28 | 4♠ | ♥8 | = | -3 |
| -1.8 | Round 4 | ZHANG | 20 | 4♥ | ♣3 | +2 | -1 |
| -1.9 | Round 2 | SPEZIA BRIDGE | 15 | 3♥ | ♣A | = | -1 |
| -2.2 | Round 7 | BANANA | 13 | 1NT | ♠3 | -1 | +0 |
| -2.5 | Round 5 | BEKKER | 12 | 2♥ | ♠A | -1 | -11 |
| -2.5 | Round 7 | BANANA | 7 | 4♥ | ♦Q | +2 | -2 |
| -2.7 | Round 6 | BERNAL | 17 | 4♠ | ♥7 | = | -8 |
| -2.7 | Round 8 | FRIENDS | 19 | 3NT | ♥6 | +3 | +11 |
| -3.0 | Round 1 | TEAM LLAMA | 1 | 3♠ | ♥J | = | +0 |
| -3.4 | Round 2 | SPEZIA BRIDGE | 21 | 3♣ | ♠6 | -1 | +0 |
| -3.5 | Round 5 | BEKKER | 8 | 4♠ | ♥T | = | -3 |
| -3.5 | Round 6 | BERNAL | 24 | 4♠ | ♦4 | = | -8 |
| -3.9 | Round 6 | BERNAL | 21 | 4♣ | ♠A | -2 | +0 |
| -4.4 | Round 3 | OFER | 3 | 4♠ | ♥A | -1 | -5 |
| -4.7 | Round 2 | SPEZIA BRIDGE | 18 | 3NT | ♦6 | = | +1 |
| -4.7 | Round 7 | BANANA | 10 | 3NT | ♥5 | -1 | -6 |
| -5.2 | Round 4 | ZHANG | 21 | 4♥ | ♠2 | = | -3 |
| -5.3 | Round 2 | SPEZIA BRIDGE | 16 | 5♦ | ♣Q | = | +1 |
| -5.5 | Round 3 | OFER | 1 | 5♦ | ♦3 | +1 | -11 |
| -6.5 | Round 1 | TEAM LLAMA | 7 | 6NT | ♦6 | +1 | -13 |
| -6.6 | Round 8 | FRIENDS | 15 | 3NT | ♥A | -1 | -10 |
| -6.9 | Round 1 | TEAM LLAMA | 9 | 3♥x | ♣K | -3 | -12 |
| -7.0 | Round 6 | BERNAL | 18 | 4♥ | ♦J | -1 | -12 |
| -7.3 | Round 2 | SPEZIA BRIDGE | 20 | 5♣ | ♠A | +1 | -13 |
| -9.9 | Round 2 | SPEZIA BRIDGE | 27 | 3NTx | ♠9 | -3 | -12 |
| -12.1 | Round 6 | BERNAL | 15 | 3NTxx | ♣K | = | -9 |