JACKSON David A · BANZAI
95rank
-34.1Butler · 100 bds
-0.34per board
±4.3swing
-0.71vs par /bd · #117/132
-0.02adjusted /bd
by round
vs par split: bidding -0.54 · play -0.17
Strength of schedule: opponents averaged +0.32/bd (a tough draw) → opponent-adjusted -0.02/bd
Card play — on target: opening leads 76.9% #76 of 132 · declarer play 74.1% #51 of 132 · defence 86.5% #51 of 132
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 60.0% (5) | 81.0% (21) |
| Declarer play | 63.6% (11) | 81.2% (16) |
| Defence | 77.8% (18) | 91.2% (34) |
Opening leads by suit led: ♠ 87.5% (8) · ♥ 75.0% (8) · ♦ 83.3% (6) · ♣ 50.0% (4)
vs par by strain: NT -1.62 (34) · a suit -0.24 (66)
vs par by level: part-score -0.15 (34) · game -1.52 (58) · slam +2.75 (8)
By role: declaring +0.38/bd (-3.48 vs par · 48) · defending -1.00/bd (+1.85 vs par · 52)
By vulnerability: vulnerable +0.16/bd (-0.24 vs par · 50) · not vulnerable -0.84/bd (-1.18 vs par · 50)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Keaveney | J.Wolfson – N.Silverman | Closed | 10 | +2.0 | +0.20 | -3.70 |
| Round 2 | G.Keaveney | C.Gianardi – E.Rossano | Closed | 10 | -17.0 | -1.70 | -0.80 |
| Round 3 | G.Keaveney | D.Langer – H.Gwinner | Closed | 10 | -7.1 | -0.71 | +0.00 |
| Round 4 | G.Keaveney | A.Silva – B.Ferreira | Closed | 10 | -1.1 | -0.11 | -1.10 |
| Round 5 | G.Keaveney | Z.Mahmood – J.Meckstroth | Open | 10 | -11.5 | -1.15 | -3.30 |
| Round 6 | G.Keaveney | A.Buratti – C.Mariani | Closed | 10 | -7.6 | -0.76 | -2.80 |
| Round 7 | G.Keaveney | J.Murdoch – E.Mcgowan | Open | 10 | -22.1 | -2.21 | -1.50 |
| Round 8 | G.Keaveney | A.Toma – P.Fey | Open | 10 | +15.1 | +1.51 | +3.00 |
| Round 9 | G.Keaveney | N.Graizer – S.Horvitz | Closed | 10 | +7.0 | +0.70 | +1.00 |
| Round 10 | G.Keaveney | R.Chamberlain – P.Shields | Closed | 10 | +8.2 | +0.82 | +2.10 |
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 |
|---|---|---|---|---|---|---|---|
| +10.9 | Round 9 | GRAIZER NURIT | 22 | 4♥x | ♦Q | -2 | +9 |
| +9.9 | Round 5 | MILNER | 20 | 5♣ | ♠5 | = | -2 |
| +9.1 | Round 8 | ROMANIA | 20 | 3NT | ♠3 | +1 | +10 |
| +8.9 | Round 8 | ROMANIA | 11 | 7♥ | ♣K | = | +0 |
| +7.8 | Round 6 | WARD PLATT | 29 | 5♥ | ♣2 | +1 | -9 |
| +7.0 | Round 10 | DHONDY | 8 | 5♦x | ♠K | = | +6 |
| +6.6 | Round 3 | WHITE WINNER | 30 | 4♥x | ♠A | -2 | +5 |
| +6.3 | Round 8 | ROMANIA | 13 | 3♦ | ♠K | +1 | +11 |
| +5.7 | Round 9 | GRAIZER NURIT | 23 | 6♦ | ♦10 | = | +0 |
| +5.5 | Round 1 | WOLFSON TEAM | 5 | 6♠ | ♠2 | = | +12 |
| +5.4 | Round 3 | WHITE WINNER | 27 | 3NT | ♥7 | = | -2 |
| +5.4 | Round 4 | PORTO BRIDGE CLUB | 4 | 1♠ | ♦7 | +1 | +5 |
| +5.3 | Round 5 | MILNER | 16 | 3♥ | ♦6 | -1 | +6 |
| +5.2 | Round 1 | WOLFSON TEAM | 1 | 6♠ | ♦A | = | +0 |
| +4.8 | Round 4 | PORTO BRIDGE CLUB | 5 | 4♠ | ♣2 | -2 | +6 |
| +3.7 | Round 10 | DHONDY | 10 | 4♠ | ♥5 | -2 | +7 |
| +3.4 | Round 6 | WARD PLATT | 23 | 4♥ | ♣6 | -1 | +12 |
| +3.3 | Round 1 | WOLFSON TEAM | 8 | 3NT | ♥2 | +3 | -11 |
| +3.1 | Round 3 | WHITE WINNER | 23 | 2♦ | ♠7 | +2 | +0 |
| +3.1 | Round 4 | PORTO BRIDGE CLUB | 7 | 3NT | ♥K | = | -2 |
| +3.1 | Round 10 | DHONDY | 9 | 4♣ | ♦K | -1 | +6 |
| +2.9 | Round 5 | MILNER | 17 | 3NT | ♦J | -1 | +5 |
| +2.9 | Round 9 | GRAIZER NURIT | 26 | 3♠ | ♦7 | +1 | +1 |
| +2.4 | Round 9 | GRAIZER NURIT | 28 | 3♥ | ♣5 | -1 | -1 |
| +2.1 | Round 8 | ROMANIA | 15 | 1NT | ♣K | +1 | +6 |
| +2.1 | Round 8 | ROMANIA | 16 | 3NT | ♠4 | -1 | +12 |
| +1.9 | Round 10 | DHONDY | 5 | 3NT | ♠3 | +3 | +1 |
| +1.5 | Round 2 | SAVELLI | 17 | 2♠ | ♠2 | -1 | +4 |
| +1.4 | Round 9 | GRAIZER NURIT | 25 | 2♠ | ♣J | = | +1 |
| +1.1 | Round 2 | SAVELLI | 14 | 1NT | ♣2 | +2 | +1 |
| +1.1 | Round 4 | PORTO BRIDGE CLUB | 1 | 2♦ | ♦2 | -1 | +4 |
| +0.9 | Round 7 | SCOTLAND | 3 | 1NT | ♣3 | = | +0 |
| +0.7 | Round 7 | SCOTLAND | 10 | 2♥ | ♦4 | +2 | +10 |
| +0.6 | Round 1 | WOLFSON TEAM | 10 | 3NT | ♥3 | -3 | +4 |
| +0.6 | Round 5 | MILNER | 14 | 3NT | ♣7 | +2 | -11 |
| +0.6 | Round 10 | DHONDY | 4 | 3NT | ♠9 | +3 | +1 |
| +0.4 | Round 7 | SCOTLAND | 4 | 4♠ | ♦10 | = | +0 |
| +0.1 | Round 4 | PORTO BRIDGE CLUB | 2 | 2NT | ♥2 | = | -10 |
| +0.0 | Round 2 | SAVELLI | 15 | 2♠ | ♥J | = | -1 |
| -0.1 | Round 6 | WARD PLATT | 27 | 3NT | ♣10 | = | -1 |
| -0.1 | Round 6 | WARD PLATT | 28 | 3NT | ♠9 | +1 | +0 |
| -0.1 | Round 9 | GRAIZER NURIT | 27 | 4♥ | ♦5 | +1 | +0 |
| -0.2 | Round 6 | WARD PLATT | 25 | 5♣ | ♠K | = | -9 |
| -0.2 | Round 10 | DHONDY | 2 | 3NT | ♣2 | -2 | +0 |
| -0.2 | Round 10 | DHONDY | 6 | 4♥ | ♦4 | = | -1 |
| -0.3 | Round 1 | WOLFSON TEAM | 2 | 5♠ | ♥5 | = | +0 |
| -0.3 | Round 1 | WOLFSON TEAM | 7 | 4♥ | ♦5 | = | +0 |
| -0.3 | Round 4 | PORTO BRIDGE CLUB | 10 | 4♠ | ♦8 | = | +0 |
| -0.5 | Round 8 | ROMANIA | 14 | 3♦ | ♣J | +1 | +5 |
| -0.7 | Round 1 | WOLFSON TEAM | 4 | 4♥ | ♣K | +2 | -13 |
| -0.7 | Round 2 | SAVELLI | 11 | 4♠ | ♦8 | = | +1 |
| -0.7 | Round 3 | WHITE WINNER | 21 | 2♥ | ♦K | = | +1 |
| -0.7 | Round 3 | WHITE WINNER | 26 | 3♣ | ♦K | +1 | +0 |
| -1.0 | Round 2 | SAVELLI | 20 | 1NT | ♥2 | +1 | -1 |
| -1.1 | Round 2 | SAVELLI | 12 | 3NT | ♠5 | = | +1 |
| -1.1 | Round 4 | PORTO BRIDGE CLUB | 3 | 4♠ | ♦K | +2 | -11 |
| -1.1 | Round 10 | DHONDY | 1 | 6♥ | ♣5 | +1 | +11 |
| -1.2 | Round 3 | WHITE WINNER | 24 | 3NT | ♥4 | +3 | -2 |
| -1.3 | Round 5 | MILNER | 12 | 4♠ | ♥6 | +2 | -1 |
| -1.3 | Round 7 | SCOTLAND | 5 | 3NT | ♥J | = | +1 |
| -1.3 | Round 9 | GRAIZER NURIT | 21 | 2♥ | ♦10 | -1 | -6 |
| -1.3 | Round 9 | GRAIZER NURIT | 29 | 3NT | ♠5 | +1 | +0 |
| -1.5 | Round 8 | ROMANIA | 19 | 2♣ | ♦J | +2 | -7 |
| -1.7 | Round 2 | SAVELLI | 18 | 2NT | ♣J | -1 | +0 |
| -1.7 | Round 6 | WARD PLATT | 21 | 1NT | ♥5 | +1 | +0 |
| -1.8 | Round 7 | SCOTLAND | 1 | 2♥ | ♦2 | +2 | -6 |
| -2.1 | Round 6 | WARD PLATT | 24 | 3NT | ♥4 | +3 | -1 |
| -2.2 | Round 6 | WARD PLATT | 22 | 4♦ | ♥4 | +1 | -7 |
| -2.2 | Round 8 | ROMANIA | 17 | 2♠ | ♥K | = | +0 |
| -2.2 | Round 10 | DHONDY | 7 | 2♥ | ♠10 | = | +0 |
| -2.3 | Round 5 | MILNER | 13 | 3NT | ♣2 | +3 | -1 |
| -2.4 | Round 1 | WOLFSON TEAM | 9 | 5♦ | ♣6 | +1 | -11 |
| -2.4 | Round 3 | WHITE WINNER | 29 | 4♥ | ♠5 | = | -3 |
| -2.5 | Round 6 | WARD PLATT | 26 | 3NT | ♣6 | +3 | -13 |
| -2.5 | Round 7 | SCOTLAND | 9 | 4♠ | ♥K | -2 | -6 |
| -2.6 | Round 7 | SCOTLAND | 6 | 3NT | ♦K | +1 | +0 |
| -2.7 | Round 3 | WHITE WINNER | 25 | 2♠ | ♥Q | -1 | +1 |
| -2.9 | Round 1 | WOLFSON TEAM | 6 | 4♠ | ♦5 | +3 | -10 |
| -2.9 | Round 2 | SAVELLI | 19 | 3NT | ♣3 | -2 | -6 |
| -2.9 | Round 5 | MILNER | 15 | 1NT | ♣5 | = | -5 |
| -3.6 | Round 4 | PORTO BRIDGE CLUB | 6 | 2♥ | ♦5 | -4 | -3 |
| -3.7 | Round 5 | MILNER | 19 | 2♥ | ♠Q | +1 | -1 |
| -3.9 | Round 8 | ROMANIA | 12 | 4♥ | ♠K | = | -1 |
| -4.1 | Round 7 | SCOTLAND | 7 | 1NT | ♦3 | +1 | -12 |
| -4.2 | Round 2 | SAVELLI | 16 | 3♥ | ♣J | +1 | -7 |
| -4.2 | Round 3 | WHITE WINNER | 28 | 4♠ | ♦K | = | +0 |
| -4.4 | Round 10 | DHONDY | 3 | 5♣ | ♥2 | -1 | -10 |
| -4.7 | Round 7 | SCOTLAND | 8 | 4♥ | ♥J | = | +0 |
| -4.8 | Round 9 | GRAIZER NURIT | 30 | 4♠ | ♦K | = | +0 |
| -5.3 | Round 4 | PORTO BRIDGE CLUB | 8 | 6♠ | ♠7 | = | +11 |
| -5.3 | Round 4 | PORTO BRIDGE CLUB | 9 | 4♥x | ♠9 | -1 | -11 |
| -5.3 | Round 8 | ROMANIA | 18 | 5♦ | ♠6 | -1 | -6 |
| -6.0 | Round 1 | WOLFSON TEAM | 3 | 3NT | ♠10 | +1 | -8 |
| -7.1 | Round 7 | SCOTLAND | 2 | 4♠x | ♥K | -2 | -2 |
| -7.3 | Round 5 | MILNER | 11 | 3NT | ♠9 | -2 | -11 |
| -8.0 | Round 2 | SAVELLI | 13 | 6♠ | ♦3 | = | +0 |
| -8.8 | Round 9 | GRAIZER NURIT | 24 | 5♠x | ♥K | +1 | +6 |
| -9.9 | Round 6 | WARD PLATT | 30 | 4♥ | ♦K | = | +0 |
| -10.3 | Round 3 | WHITE WINNER | 22 | 3NT | ♦4 | = | +0 |
| -12.7 | Round 5 | MILNER | 18 | 6♥ | ♥7 | -1 | -12 |