BOSENBERG Christopher Henry · SOUTH AFRICA
vs par split: bidding -2.11 · play -0.93
Strength of schedule: opponents averaged +0.16/bd (a tough draw) → opponent-adjusted -2.19/bd
Card play — on target: opening leads 70.0% · declarer play 62.5% · defence 68.8%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (4) | 83.3% (6) |
| Declarer play | 66.7% (3) | 60.0% (5) |
| Defence | 57.1% (7) | 77.8% (9) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (2) · ♦ 66.7% (3) · ♣ 0.0% (1)
vs par by strain: NT -2.64 (11) · a suit -3.29 (17)
vs par by level: part-score -1.88 (8) · game -3.50 (20)
By role: declaring -1.52/bd (-6.42 vs par · 12) · defending -2.98/bd (-0.50 vs par · 16)
By vulnerability: vulnerable -1.97/bd (-3.64 vs par · 14) · not vulnerable -2.74/bd (-2.43 vs par · 14)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | N.Eber | R.Schwartz – L.Fisher | Open | 14 | -40.8 | -2.91 | -4.07 |
| Round of 32 | N.Eber | R.Schwartz – L.Fisher | Open | 14 | -25.1 | -1.79 | -2.00 |
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 |
|---|---|---|---|---|---|---|---|
| +4.3 | Round of 32 | VITAS | 25 | 5♠ | ♥7 | = | -13 |
| +3.5 | Round of 32 | VITAS | 26 | 3♣ | ♥K | +2 | +10 |
| +3.3 | Round of 32 | VITAS | 18 | 5♠ | ♥A | = | +0 |
| +2.7 | Round of 32 | VITAS | 21 | 3NT | ♦9 | = | +0 |
| +0.9 | Round of 32 | VITAS | 9 | 2♠ | ♣J | -1 | +1 |
| +0.4 | Round of 32 | VITAS | 2 | 2NT | ♥7 | = | +0 |
| +0.3 | Round of 32 | VITAS | 12 | 3♦ | ♥J | -1 | -1 |
| -0.2 | Round of 32 | VITAS | 4 | 4♠ | ♥K | +1 | -13 |
| -0.3 | Round of 32 | VITAS | 1 | 4♥ | ♦K | +1 | +0 |
| -0.3 | Round of 32 | VITAS | 27 | 4♥ | ♠5 | = | +0 |
| -0.8 | Round of 32 | VITAS | 19 | 2♥ | ♣2 | +1 | -6 |
| -1.1 | Round of 32 | VITAS | 6 | 4♠ | ♥2 | +1 | -1 |
| -1.1 | Round of 32 | VITAS | 16 | 4♥ | ♦K | +1 | -1 |
| -2.5 | Round of 32 | VITAS | 5 | 4♠ | ♦7 | -1 | -5 |
| -2.5 | Round of 32 | VITAS | 8 | 3NT | ♥2 | = | -11 |
| -2.5 | Round of 32 | VITAS | 23 | 4♠ | ♥8 | = | +0 |
| -3.9 | Round of 32 | VITAS | 24 | 4NT | ♠7 | = | +0 |
| -4.1 | Round of 32 | VITAS | 20 | 3NT | ♠8 | +4 | -2 |
| -4.1 | Round of 32 | VITAS | 22 | 4♥ | ♦9 | -1 | -6 |
| -4.6 | Round of 32 | VITAS | 7 | 2♣ | ♥6 | +3 | -10 |
| -5.5 | Round of 32 | VITAS | 10 | 3♠ | ♦A | = | +0 |
| -5.6 | Round of 32 | VITAS | 14 | 3NT | ♦J | = | +0 |
| -5.9 | Round of 32 | VITAS | 3 | 3NT | ♠3 | +2 | -1 |
| -6.1 | Round of 32 | VITAS | 15 | 3NT | ♦3 | = | +2 |
| -6.4 | Round of 32 | VITAS | 13 | 2NT | ♥2 | -3 | -9 |
| -6.5 | Round of 32 | VITAS | 17 | 3NT | ♠3 | +1 | -1 |
| -7.8 | Round of 32 | VITAS | 11 | 3NT | ♠J | = | -7 |
| -9.5 | Round of 32 | VITAS | 28 | 4♥ | ♠5 | -2 | -11 |