VAN IPENBURG Helena · KERDIZO
398rank
-30.1Butler · 90 bds
-0.33per board
±5.3swing
-0.90vs par /bd · #502/552
-0.41adjusted /bd
by round
vs par split: bidding -0.40 · play -0.47
Strength of schedule: opponents averaged -0.08/bd (an easy draw) → opponent-adjusted -0.41/bd
Card play — on target: opening leads 75.0% #372 of 551 · declarer play 61.5% #474 of 551 · defence 79.6% #426 of 552
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (10) | 71.4% (14) |
| Declarer play | 75.0% (4) | 55.6% (9) |
| Defence | 60.0% (15) | 88.2% (34) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 62.5% (8) · ♦ 100.0% (8) · ♣ 25.0% (4)
vs par by strain: NT -0.16 (25) · a suit -1.16 (64)
vs par by level: part-score -1.17 (35) · game +0.07 (45) · slam -4.44 (9)
By role: declaring -1.46/bd (-4.29 vs par · 41) · defending +0.61/bd (+1.94 vs par · 49)
By vulnerability: vulnerable +0.03/bd (-0.67 vs par · 46) · not vulnerable -0.71/bd (-1.14 vs par · 44)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Kaptein | C.Lorenzini – J.Rombaut | Closed | 10 | -34.6 | -3.46 | -3.20 |
| Round 2 | M.Kaptein | S.Cope – M.Robertson | Closed | 10 | -11.8 | -1.18 | -3.00 |
| Round 4 | M.Kaptein | F.Beildorff – H.Adelsberger | Closed | 10 | -7.3 | -0.73 | -1.00 |
| Round 5 | M.Kaptein | G.Hop – A.Helmich | Closed | 10 | +0.8 | +0.08 | -0.90 |
| Round 6 | M.Kaptein | P.Jepsen – M.Bilde | Closed | 10 | +6.8 | +0.68 | +1.50 |
| Round 7 | M.Kaptein | G.Dauwe – T.Dobbels | Closed | 10 | -8.6 | -0.86 | -1.10 |
| Round 8 | M.Kaptein | A.Mcintosh – D.Mossop | Closed | 10 | -2.9 | -0.29 | +0.30 |
| Round 9 | M.Kaptein | R.Khomiakov – J.Van Overmeire | Closed | 10 | -8.9 | -0.89 | -0.90 |
| Round 10 | M.Kaptein | R.Brantsma – R.Jagroop | Closed | 10 | +36.4 | +3.64 | +0.20 |
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 |
|---|---|---|---|---|---|---|---|
| +12.7 | Round 10 | BRICKLAYER | 7 | 6♦ | ♦5 | -2 | +13 |
| +9.1 | Round 5 | JOLLY LOMBARD | 20 | 5♣ | ♣J | +2 | +17 |
| +9.0 | Round 6 | DEN U25 | 22 | 6♣x | ♥K | -2 | +12 |
| +8.0 | Round 2 | ROBERTSON | 12 | 3NT | ♥6 | = | +10 |
| +7.8 | Round 1 | GROUPE FRANCE | 7 | 4♥ | ♣A | = | +10 |
| +7.8 | Round 10 | BRICKLAYER | 9 | 3NT | ♠6 | -3 | +11 |
| +7.6 | Round 9 | ROYAL ANTWERP | 30 | 4♠x | ♠A | -2 | +9 |
| +7.5 | Round 9 | ROYAL ANTWERP | 25 | 4♥ | ♣K | = | +10 |
| +7.2 | Round 10 | BRICKLAYER | 2 | 5♠x | ♦K | -3 | -3 |
| +7.1 | Round 6 | DEN U25 | 29 | 4♥ | ♣6 | = | -1 |
| +7.0 | Round 7 | SQUEEZE | 3 | 4♠ | ♦9 | -1 | +10 |
| +5.4 | Round 4 | BEILDORF | 5 | 3NT | ♠9 | +3 | +11 |
| +5.3 | Round 5 | JOLLY LOMBARD | 15 | 4♠ | ♦9 | -3 | +11 |
| +4.9 | Round 8 | MOSSOP | 19 | 5♣ | ♥2 | -1 | +10 |
| +4.9 | Round 10 | BRICKLAYER | 5 | 4♥ | ♦Q | +1 | +2 |
| +4.9 | Round 10 | BRICKLAYER | 6 | 3NTx | ♥A | -2 | +5 |
| +4.7 | Round 5 | JOLLY LOMBARD | 19 | 5♣x | ♥A | +1 | -7 |
| +4.7 | Round 9 | ROYAL ANTWERP | 29 | 4♠ | ♥4 | -1 | +6 |
| +4.3 | Round 6 | DEN U25 | 30 | 4♠x | ♠3 | -5 | +3 |
| +4.3 | Round 10 | BRICKLAYER | 8 | 2NT | ♦6 | -3 | +6 |
| +3.9 | Round 5 | JOLLY LOMBARD | 18 | 3NT | ♣2 | -1 | +10 |
| +3.9 | Round 6 | DEN U25 | 23 | 3NT | ♥6 | -3 | +5 |
| +3.3 | Round 6 | DEN U25 | 25 | 2♦ | ♣5 | = | +6 |
| +3.2 | Round 4 | BEILDORF | 8 | 4♣ | ♠10 | -1 | +4 |
| +3.1 | Round 1 | GROUPE FRANCE | 4 | 4♣ | ♥A | -1 | -1 |
| +2.8 | Round 4 | BEILDORF | 6 | 1NT | ♦4 | -2 | +3 |
| +2.2 | Round 5 | JOLLY LOMBARD | 13 | 3NT | ♥2 | +2 | +0 |
| +2.2 | Round 7 | SQUEEZE | 4 | 2♠ | ♦2 | +1 | +0 |
| +1.9 | Round 10 | BRICKLAYER | 1 | 3♦ | ♠K | = | +0 |
| +1.7 | Round 5 | JOLLY LOMBARD | 17 | 3♦ | ♥2 | -3 | +0 |
| +1.6 | Round 7 | SQUEEZE | 1 | 3♦ | ♠10 | -2 | +5 |
| +1.5 | Round 7 | SQUEEZE | 2 | 1NT | ♥A | +1 | +1 |
| +1.4 | Round 2 | ROBERTSON | 20 | 4♠ | ♦K | +1 | +0 |
| +1.3 | Round 2 | ROBERTSON | 15 | 1NT | ♥Q | = | -1 |
| +1.3 | Round 8 | MOSSOP | 15 | 2♥ | ♦K | +2 | -6 |
| +1.3 | Round 8 | MOSSOP | 17 | 3♠ | ♠6 | -1 | +6 |
| +1.1 | Round 2 | ROBERTSON | 16 | 3NT | ♠10 | +2 | +0 |
| +0.8 | Round 6 | DEN U25 | 27 | 2♥ | ♦Q | = | -1 |
| +0.5 | Round 2 | ROBERTSON | 17 | 4♠x | ♥6 | -2 | -4 |
| +0.5 | Round 4 | BEILDORF | 10 | 2♥ | ♥9 | +1 | +0 |
| +0.2 | Round 4 | BEILDORF | 2 | 2NT | ♠4 | = | +0 |
| +0.2 | Round 6 | DEN U25 | 21 | 1♠ | ♦3 | = | +1 |
| +0.0 | Round 7 | SQUEEZE | 9 | 3NT | ♣7 | +1 | +1 |
| -0.1 | Round 4 | BEILDORF | 1 | 4♠ | ♣K | +1 | +0 |
| -0.1 | Round 9 | ROYAL ANTWERP | 21 | 2♠ | ♣K | +1 | +0 |
| -0.3 | Round 8 | MOSSOP | 11 | 4♠ | ♦10 | -2 | +6 |
| -0.3 | Round 8 | MOSSOP | 14 | 2♥ | ♣J | +1 | -1 |
| -0.4 | Round 8 | MOSSOP | 12 | 3NT | ♣7 | = | -1 |
| -0.4 | Round 8 | MOSSOP | 18 | 3♣ | ♣9 | +2 | +0 |
| -0.6 | Round 1 | GROUPE FRANCE | 6 | 2♥ | ♣J | +2 | +8 |
| -0.7 | Round 10 | BRICKLAYER | 3 | 4♠x | ♦Q | -3 | -12 |
| -1.0 | Round 2 | ROBERTSON | 11 | 4♠ | ♥Q | = | +0 |
| -1.1 | Round 10 | BRICKLAYER | 10 | 4♠x | ♥10 | -1 | -8 |
| -1.2 | Round 7 | SQUEEZE | 8 | 3♣ | ♣Q | +1 | +0 |
| -1.2 | Round 9 | ROYAL ANTWERP | 28 | 2♥ | ♥5 | = | +0 |
| -1.3 | Round 5 | JOLLY LOMBARD | 11 | 2♠ | ♦2 | +1 | -1 |
| -1.3 | Round 8 | MOSSOP | 16 | 4♥ | ♠J | = | +0 |
| -1.3 | Round 8 | MOSSOP | 20 | 4♥ | ♠K | = | +1 |
| -1.5 | Round 7 | SQUEEZE | 5 | 2♠ | ♣K | +2 | +1 |
| -1.7 | Round 2 | ROBERTSON | 14 | 3NT | ♠A | +3 | -2 |
| -2.0 | Round 4 | BEILDORF | 3 | 4♠ | ♦5 | -1 | -5 |
| -2.2 | Round 9 | ROYAL ANTWERP | 22 | 6♥ | ♠J | = | +0 |
| -2.3 | Round 6 | DEN U25 | 26 | 1NT | ♥3 | = | +1 |
| -2.3 | Round 7 | SQUEEZE | 7 | 3♠ | ♦K | = | +0 |
| -2.4 | Round 1 | GROUPE FRANCE | 8 | 1NT | ♦2 | +2 | -6 |
| -2.4 | Round 2 | ROBERTSON | 13 | 2♠ | ♥A | -3 | -9 |
| -2.4 | Round 4 | BEILDORF | 7 | Pass | -3 | ||
| -3.8 | Round 1 | GROUPE FRANCE | 1 | 4♥ | ♣4 | = | -1 |
| -3.9 | Round 1 | GROUPE FRANCE | 3 | 3♥ | ♦J | -1 | -5 |
| -5.2 | Round 4 | BEILDORF | 4 | 2NT | ♦7 | +2 | -9 |
| -5.5 | Round 5 | JOLLY LOMBARD | 12 | 6♦ | ♥3 | -1 | -12 |
| -5.5 | Round 10 | BRICKLAYER | 4 | 3NT | ♣Q | -1 | -12 |
| -5.8 | Round 1 | GROUPE FRANCE | 2 | 4♠ | ♣5 | +1 | -16 |
| -5.9 | Round 9 | ROYAL ANTWERP | 23 | 3♦ | ♥Q | +1 | -11 |
| -6.0 | Round 9 | ROYAL ANTWERP | 26 | 3NT | ♥K | +2 | -4 |
| -6.4 | Round 8 | MOSSOP | 13 | 4♠ | ♦A | -1 | -12 |
| -6.6 | Round 9 | ROYAL ANTWERP | 24 | 3NT | ♦K | +1 | -8 |
| -6.7 | Round 9 | ROYAL ANTWERP | 27 | 6♣x | ♥8 | -2 | -11 |
| -6.9 | Round 7 | SQUEEZE | 10 | 6♥ | ♣5 | -1 | -17 |
| -7.3 | Round 1 | GROUPE FRANCE | 10 | 2♥ | ♥5 | -3 | -9 |
| -7.5 | Round 2 | ROBERTSON | 18 | 3NT | ♥5 | +3 | -13 |
| -8.6 | Round 5 | JOLLY LOMBARD | 14 | 6♦ | ♠A | -3 | -14 |
| -9.0 | Round 1 | GROUPE FRANCE | 9 | 3NT | ♠9 | = | +0 |
| -9.0 | Round 7 | SQUEEZE | 6 | 3NT | ♦Q | -1 | -12 |
| -9.4 | Round 6 | DEN U25 | 24 | 3♦ | ♥7 | -1 | -11 |
| -9.7 | Round 4 | BEILDORF | 9 | 6♥ | ♦A | -1 | -11 |
| -10.1 | Round 6 | DEN U25 | 28 | 7♠ | ♥K | = | +0 |
| -10.7 | Round 5 | JOLLY LOMBARD | 16 | 4♥ | ♦A | = | -13 |
| -11.5 | Round 2 | ROBERTSON | 19 | 4♠ | ♦3 | +1 | -11 |
| -12.7 | Round 1 | GROUPE FRANCE | 5 | 3♣x | ♣4 | -3 | -12 |