BERKOWITZ David · GOODMAN
vs par split: bidding -0.46 · play +0.37
Strength of schedule: opponents averaged +0.00/bd (an average draw) → opponent-adjusted +0.24/bd
Card play — on target: opening leads 73.7% #139 of 196 · declarer play 76.2% #112 of 196 · defence 91.7% #20 of 196
Bidding activity — not a pass: 47.1% #57 of 196 (121/257)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 62.5% (8) | 81.8% (11) |
| Declarer play | 62.5% (8) | 84.6% (13) |
| Defence | 100.0% (12) | 87.5% (24) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 66.7% (3) · ♦ 71.4% (7) · ♣ 50.0% (4)
vs par by strain: NT +1.00 (25) · a suit -0.56 (59)
vs par by level: part-score -0.73 (30) · game +0.49 (43) · slam -0.64 (11)
By role: declaring +0.01/bd (-2.31 vs par · 48) · defending +0.54/bd (+2.86 vs par · 36)
By vulnerability: vulnerable +0.54/bd (+0.88 vs par · 42) · not vulnerable -0.06/bd (-1.07 vs par · 42)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | J.Meckstroth | B.Drijver – S.Ashe | Open | 14 | -8.3 | -0.59 | -1.36 |
| Round 3 | J.Meckstroth | J.Lesniczak – V.Valchev | Open | 14 | -7.3 | -0.52 | +0.43 |
| Round 4 | J.Meckstroth | Y.Chumak – E.Kupriianov | Open | 14 | +27.2 | +1.94 | +2.21 |
| Round 6 | J.Meckstroth | D.Msika – I.Moskovitz | Open | 14 | -20.0 | -1.43 | -2.64 |
| Round 7 | J.Meckstroth | S.Kushari – K.Bendre | Closed | 14 | +19.6 | +1.40 | +1.43 |
| Round 8 | J.Meckstroth | G.Shen – C.Dong | Closed | 14 | +9.0 | +0.64 | -0.64 |
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 |
|---|---|---|---|---|---|---|---|
| +11.6 | Round 2 | ASHE | 27 | 3NTx | ♦J | -4 | +13 |
| +9.5 | Round 4 | JUSTJUMP | 25 | 6♠ | ♦2 | = | +0 |
| +8.2 | Round 7 | FORMIDABLES | 12 | 3♦x | ♠K | -3 | +9 |
| +8.1 | Round 4 | JUSTJUMP | 26 | 5♥x | ♠K | -2 | +12 |
| +7.8 | Round 8 | CHINA OPEN TEAM 1 | 28 | 3NT | ♦2 | = | +7 |
| +6.8 | Round 7 | FORMIDABLES | 13 | 4♥ | ♠A | +1 | +1 |
| +6.6 | Round 4 | JUSTJUMP | 22 | 3NT | ♥6 | -1 | +10 |
| +6.5 | Round 4 | JUSTJUMP | 16 | 4♥x | ♠A | -2 | +5 |
| +6.1 | Round 4 | JUSTJUMP | 17 | 3♥ | ♠A | = | +6 |
| +5.9 | Round 6 | BIANCHI | 26 | 4♠ | ♥6 | = | +0 |
| +5.0 | Round 6 | BIANCHI | 20 | 5♦ | ♣Q | = | +0 |
| +5.0 | Round 7 | FORMIDABLES | 4 | 4♦ | ♦2 | +1 | +10 |
| +4.5 | Round 3 | PKB INTERNATIONAL | 4 | 1NT | ♥4 | = | +5 |
| +4.2 | Round 2 | ASHE | 19 | 5♦ | ♥T | = | -2 |
| +4.2 | Round 8 | CHINA OPEN TEAM 1 | 15 | 6♥ | ♣7 | = | +0 |
| +4.1 | Round 2 | ASHE | 26 | 3NT | ♠Q | = | +10 |
| +3.6 | Round 2 | ASHE | 17 | 3♥ | ♠5 | = | +6 |
| +3.6 | Round 6 | BIANCHI | 19 | 3NT | ♦Q | -2 | +6 |
| +3.6 | Round 7 | FORMIDABLES | 8 | 5♦x | ♣J | -1 | +5 |
| +3.1 | Round 3 | PKB INTERNATIONAL | 7 | 6♦ | ♣9 | -1 | +15 |
| +3.0 | Round 7 | FORMIDABLES | 11 | 4♠x | ♦K | -1 | +5 |
| +2.8 | Round 7 | FORMIDABLES | 2 | 6♥ | ♠6 | +1 | -11 |
| +2.7 | Round 4 | JUSTJUMP | 18 | 3♥ | ♦T | -3 | +4 |
| +2.6 | Round 8 | CHINA OPEN TEAM 1 | 21 | 7♥ | ♠J | = | +0 |
| +2.3 | Round 4 | JUSTJUMP | 21 | 2♦ | ♦2 | -2 | -5 |
| +2.3 | Round 8 | CHINA OPEN TEAM 1 | 19 | 6♦ | ♣A | = | -1 |
| +2.2 | Round 2 | ASHE | 18 | 5♦ | ♠5 | = | +11 |
| +2.1 | Round 8 | CHINA OPEN TEAM 1 | 26 | 4♥ | ♦7 | = | +0 |
| +1.6 | Round 8 | CHINA OPEN TEAM 1 | 25 | 2NT | ♥A | = | +6 |
| +1.4 | Round 3 | PKB INTERNATIONAL | 11 | 3♥ | ♠6 | -1 | -2 |
| +1.2 | Round 6 | BIANCHI | 17 | 4♠ | ♦K | +1 | +0 |
| +1.2 | Round 7 | FORMIDABLES | 14 | 5♠ | ♣T | = | +11 |
| +1.1 | Round 4 | JUSTJUMP | 15 | 1NT | ♣Q | = | +5 |
| +1.1 | Round 6 | BIANCHI | 23 | 3NT | ♥J | = | +0 |
| +1.1 | Round 8 | CHINA OPEN TEAM 1 | 18 | 3NT | ♦2 | +1 | +12 |
| +1.0 | Round 3 | PKB INTERNATIONAL | 9 | 4♠ | ♣A | -3 | +1 |
| +1.0 | Round 7 | FORMIDABLES | 5 | 5♦ | ♥6 | = | +0 |
| +0.8 | Round 3 | PKB INTERNATIONAL | 8 | 3♥ | ♣A | -1 | +2 |
| +0.8 | Round 6 | BIANCHI | 27 | 4♦ | ♥A | = | +0 |
| +0.7 | Round 4 | JUSTJUMP | 23 | 6♠ | ♣J | +1 | +1 |
| +0.6 | Round 3 | PKB INTERNATIONAL | 1 | 3♦ | ♣6 | +1 | +0 |
| +0.6 | Round 8 | CHINA OPEN TEAM 1 | 16 | 3NT | ♦5 | = | +1 |
| +0.4 | Round 2 | ASHE | 21 | 3♥ | ♣A | -1 | -2 |
| +0.1 | Round 4 | JUSTJUMP | 24 | 4♥ | ♦T | = | +1 |
| +0.0 | Round 8 | CHINA OPEN TEAM 1 | 23 | 2♥ | ♥A | +1 | +0 |
| -0.0 | Round 8 | CHINA OPEN TEAM 1 | 27 | 4♥ | ♣4 | +2 | -11 |
| -0.3 | Round 3 | PKB INTERNATIONAL | 13 | 3NT | ♦8 | = | +1 |
| -0.5 | Round 7 | FORMIDABLES | 7 | 3NT | ♦4 | +1 | +0 |
| -0.7 | Round 6 | BIANCHI | 21 | 2♠ | ♥K | +1 | -6 |
| -0.9 | Round 7 | FORMIDABLES | 6 | 1♠ | ♣5 | -1 | -5 |
| -0.9 | Round 7 | FORMIDABLES | 10 | 3♣ | ♥T | -1 | +0 |
| -1.2 | Round 7 | FORMIDABLES | 9 | 4♠ | ♣3 | = | +0 |
| -1.3 | Round 4 | JUSTJUMP | 20 | 1♦ | ♣2 | +1 | -1 |
| -1.3 | Round 8 | CHINA OPEN TEAM 1 | 24 | 2NT | ♠4 | = | -1 |
| -1.4 | Round 8 | CHINA OPEN TEAM 1 | 22 | 2♠ | ♠A | -1 | -2 |
| -1.5 | Round 2 | ASHE | 20 | 1NT | ♣6 | -3 | -9 |
| -1.5 | Round 2 | ASHE | 23 | 3♦ | ♥2 | +2 | -1 |
| -1.5 | Round 3 | PKB INTERNATIONAL | 6 | 3NT | ♦J | = | +1 |
| -1.6 | Round 3 | PKB INTERNATIONAL | 2 | 4♠ | ♥5 | -2 | -6 |
| -1.7 | Round 3 | PKB INTERNATIONAL | 14 | 3NT | ♥Q | = | -2 |
| -2.1 | Round 3 | PKB INTERNATIONAL | 10 | 6♠ | ♣Q | +1 | +13 |
| -2.3 | Round 7 | FORMIDABLES | 3 | 4♥ | ♦K | = | +0 |
| -2.4 | Round 6 | BIANCHI | 15 | 4♠x | ♥K | -2 | -5 |
| -2.6 | Round 2 | ASHE | 28 | 3NT | ♠Q | = | -5 |
| -3.3 | Round 6 | BIANCHI | 18 | 3NT | ♥T | = | +0 |
| -3.4 | Round 4 | JUSTJUMP | 27 | 6♣ | ♠3 | +1 | -1 |
| -3.7 | Round 3 | PKB INTERNATIONAL | 3 | 3♠ | ♦J | -3 | -5 |
| -3.7 | Round 3 | PKB INTERNATIONAL | 12 | 4♥ | ♦J | +3 | -10 |
| -3.9 | Round 4 | JUSTJUMP | 28 | 4♠ | ♥2 | -1 | -5 |
| -4.1 | Round 3 | PKB INTERNATIONAL | 5 | 3♥ | ♠K | = | -7 |
| -4.1 | Round 6 | BIANCHI | 16 | 4♦ | ♥A | -1 | -6 |
| -4.2 | Round 2 | ASHE | 22 | 2NT | ♣6 | +1 | +1 |
| -4.2 | Round 6 | BIANCHI | 24 | 1NT | ♥2 | -1 | -10 |
| -4.3 | Round 8 | CHINA OPEN TEAM 1 | 20 | 1NT | ♣8 | -1 | -6 |
| -5.3 | Round 2 | ASHE | 15 | 3NT | ♦A | -1 | -12 |
| -5.7 | Round 2 | ASHE | 24 | 4♠x | ♣2 | +1 | -6 |
| -5.9 | Round 6 | BIANCHI | 22 | 3NT | ♣6 | -2 | -8 |
| -6.1 | Round 2 | ASHE | 25 | 6♥ | ♠A | = | -12 |
| -6.2 | Round 7 | FORMIDABLES | 1 | 5♦x | ♣A | -2 | -5 |
| -6.3 | Round 8 | CHINA OPEN TEAM 1 | 17 | 4♠ | ♦T | +3 | -14 |
| -7.5 | Round 2 | ASHE | 16 | 6♥x | ♠J | -1 | -11 |
| -7.9 | Round 4 | JUSTJUMP | 19 | 4♥ | ♣3 | +1 | -1 |
| -8.1 | Round 6 | BIANCHI | 28 | 3NT | ♥5 | = | +0 |
| -8.9 | Round 6 | BIANCHI | 25 | 2♦x | ♣8 | -2 | -8 |