TROUWBORST Jaap · NETHERLANDS 1
36rank
-46.7Butler · 36 bds
-1.30per board
±4.4swing
-0.12vs par /bd
-0.89adjusted /bd
by round
vs par split: bidding -1.05 · play +1.00
Strength of schedule: opponents averaged +0.40/bd (a tough draw) → opponent-adjusted -0.89/bd
Card play — on target: opening leads 75.0% · declarer play 66.7% · defence 81.8%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 75.0% (4) |
| Declarer play | · | 66.7% (6) |
| Defence | · | 81.8% (11) |
Opening leads by suit led: ♠ 100.0% (2) · ♣ 50.0% (2)
vs par by strain: a suit -0.05 (19)
vs par by level: part-score -1.17 (12) · game +1.86 (7)
By role: declaring -2.31/bd (-0.42 vs par · 19) · defending -0.17/bd (+0.17 vs par · 17)
By vulnerability: vulnerable -0.97/bd (+0.75 vs par · 12) · not vulnerable -1.46/bd (-1.00 vs par · 24)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| QS | N.Doremans | S.Szenberg – M.Milaszewski | Closed | 12 | -15.3 | -1.28 | · |
| SS | N.Doremans | S.Zeligman – V.Melman | Closed | 12 | -8.4 | -0.70 | -0.08 |
| PS | R.Ramer | A.Cokin – A.Fisher | Open | 12 | -23.0 | -1.92 | -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 |
|---|---|---|---|---|---|---|---|
| +12.0 | PS | JEAN-MARSHA | 9 | 3N | ♠J | -6 | +12 |
| +7.1 | QS | SZENBERG | 26 | 3N | ♠5 | = | · |
| +6.0 | PS | JEAN-MARSHA | 5 | 2♥ | ♦6 | +1 | +0 |
| +5.0 | SS | MARKOWICZ | 12 | 4♥ | ♣K | = | +10 |
| +3.4 | QS | SZENBERG | 23 | 3♣ | ♥10 | +1 | · |
| +2.3 | QS | SZENBERG | 24 | 5♥ | ♠A | = | · |
| +1.0 | PS | JEAN-MARSHA | 12 | 3♠ | ♦8 | +1 | +6 |
| +0.7 | SS | MARKOWICZ | 11 | 4♥ | ♣K | = | +0 |
| +0.3 | SS | MARKOWICZ | 4 | 4♥ | ♠5 | +1 | +11 |
| +0.0 | SS | MARKOWICZ | 7 | 4♠ | ♦K | +1 | +0 |
| +0.0 | SS | MARKOWICZ | 10 | 4♥ | ♣J | +1 | -4 |
| +0.0 | PS | JEAN-MARSHA | 3 | 2♠ | ♠A | +1 | -6 |
| +0.0 | PS | JEAN-MARSHA | 7 | 3N | ♠7 | = | -1 |
| -0.7 | SS | MARKOWICZ | 1 | 2♥ | ♦6 | = | +0 |
| -0.7 | SS | MARKOWICZ | 8 | 2♣ | ♠10 | -1 | -2 |
| -0.9 | QS | SZENBERG | 18 | 4♥ | ♣6 | +1 | · |
| -1.0 | SS | MARKOWICZ | 3 | 3N | ♣6 | = | +0 |
| -1.0 | PS | JEAN-MARSHA | 11 | 4♥ | ♦Q | = | -1 |
| -1.7 | SS | MARKOWICZ | 2 | 2♣ | ♠8 | +2 | +0 |
| -2.0 | PS | JEAN-MARSHA | 2 | 2♥ | ♦7 | -1 | -11 |
| -2.3 | QS | SZENBERG | 16 | Pass | · | ||
| -2.4 | QS | SZENBERG | 25 | 3N | ♠3 | -2 | · |
| -2.6 | QS | SZENBERG | 21 | 2♦ | ♠6 | +1 | · |
| -2.7 | SS | MARKOWICZ | 6 | 3N | ♥10 | -1 | -5 |
| -3.1 | QS | SZENBERG | 17 | 4♠ | ♦3 | +2 | · |
| -3.1 | QS | SZENBERG | 19 | 3♦ | ♠A | +2 | · |
| -3.3 | SS | MARKOWICZ | 9 | 4♠ | ♥4 | = | -3 |
| -3.4 | QS | SZENBERG | 15 | 4♥ | ♠5 | +3 | · |
| -4.3 | SS | MARKOWICZ | 5 | 3N | ♥3 | -2 | -8 |
| -4.9 | QS | SZENBERG | 22 | 2♠ | ♦J | +1 | · |
| -5.4 | QS | SZENBERG | 20 | 4♠ | ♣J | = | · |
| -6.0 | PS | JEAN-MARSHA | 6 | 2♠ | ♥A | +3 | -6 |
| -6.0 | PS | JEAN-MARSHA | 8 | 3♦ | ♣5 | -2 | +1 |
| -7.0 | PS | JEAN-MARSHA | 10 | 2♠ | ♥3 | = | +10 |
| -9.0 | PS | JEAN-MARSHA | 4 | 3♦ | ♣A | -3 | -4 |
| -11.0 | PS | JEAN-MARSHA | 1 | 2♦x | ♥K | -3 | -2 |