🇳🇱 VISSER Karlijn · NETHERLANDS
94rank
-81.7Butler · 96 bds
-0.85per board
±5.3swing
-1.84vs par /bd · #103/105
-0.87adjusted /bd
by round
vs par split: bidding -1.31 · play -0.53
Strength of schedule: opponents averaged -0.02/bd (an average draw) → opponent-adjusted -0.87/bd
Card play — on target: opening leads 70.0% #97 of 105 · declarer play 55.6% #92 of 105 · defence 71.7% #99 of 105
Bidding activity — not a pass: 50.6% #5 of 105 (137/271)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (8) | 77.3% (22) |
| Declarer play | 80.0% (5) | 50.0% (22) |
| Defence | 77.8% (9) | 70.3% (37) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 71.4% (7) · ♦ 72.7% (11) · ♣ 66.7% (6)
vs par by strain: NT -2.71 (24) · a suit -1.56 (72)
vs par by level: part-score -1.11 (35) · game -2.45 (56) · slam -0.20 (5)
By role: declaring -0.85/bd (-4.04 vs par · 50) · defending -0.85/bd (+0.54 vs par · 46)
By vulnerability: vulnerable -1.08/bd (-1.96 vs par · 48) · not vulnerable -0.62/bd (-1.73 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | D.De Rooij | A.Shih – K.Chen | Closed | 8 | -14.9 | -1.86 | -2.25 |
| Round 4 | D.De Rooij | Z.Zhao – Z.Zhu | Closed | 8 | -2.0 | -0.25 | -0.50 |
| Round 5 | T.Pothof | C.Wang – Y.Peng | Closed | 8 | -21.7 | -2.71 | -1.62 |
| Round 6 | T.Pothof | O.Gal Or – Y.Ben Melech | Closed | 8 | -11.2 | -1.40 | -2.12 |
| Round 7 | Y.Liu | X.Roulle – T.Bernieri | Open | 8 | +1.4 | +0.17 | +0.00 |
| Round 8 | Y.Liu | A.Zodypache – A.Zodypache | Closed | 8 | -4.0 | -0.50 | -3.88 |
| Round 9 | T.Blomsteel | M.Vlachou – N.Oikonomou | Closed | 8 | -0.7 | -0.09 | -0.88 |
| Round 10 | T.Blomsteel | I.Binderkrantz – E.Knie-Andersen | Open | 8 | +5.5 | +0.69 | +0.00 |
| Round 13 | D.De Rooij | B.Mroz – M.Prokopowicz | Closed | 8 | -18.6 | -2.33 | -3.38 |
| Round 14 | T.Pothof | O.Deng – Y.Cai | Closed | 8 | -28.9 | -3.61 | -8.38 |
| Round 16 | Y.Liu | A.Blicharz – W.Marshall | Open | 8 | +3.8 | +0.47 | -0.88 |
| Round 17 | T.Blomsteel | R.Cheng – J.Ke | Open | 8 | +9.6 | +1.20 | +1.75 |
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 |
|---|---|---|---|---|---|---|---|
| +13.2 | Round 6 | 🇮🇱 ISRAEL | 14 | 7♥ | ♣A | -1 | +14 |
| +11.9 | Round 4 | 🇨🇳 CHINA | 32 | 7NT | ♣6 | = | +0 |
| +10.7 | Round 6 | 🇮🇱 ISRAEL | 9 | 5♦x | ♣8 | -3 | +9 |
| +10.3 | Round 7 | 🇫🇷 FRANCE | 17 | 3♦x | ♣K | = | +8 |
| +10.2 | Round 10 | 🇩🇰 DENMARK | 13 | 4♥x | ♣A | -2 | +17 |
| +7.9 | Round 17 | 🇨🇦 CANADA | 12 | 3NT | ♥2 | -1 | +12 |
| +6.4 | Round 17 | 🇨🇦 CANADA | 14 | 4♥x | ♣T | -2 | +9 |
| +5.8 | Round 17 | 🇨🇦 CANADA | 16 | 2♥ | ♥Q | = | +6 |
| +5.2 | Round 9 | 🇬🇷 GREECE | 8 | 4♠ | ♥K | = | +7 |
| +4.5 | Round 10 | 🇩🇰 DENMARK | 11 | 3NT | ♥5 | +3 | +1 |
| +4.4 | Round 7 | 🇫🇷 FRANCE | 18 | 4♠ | ♥3 | -2 | +3 |
| +4.4 | Round 17 | 🇨🇦 CANADA | 10 | 4♠ | ♦J | = | -13 |
| +4.3 | Round 16 | 🏴 ENGLAND | 5 | 4NT | ♣K | = | -1 |
| +4.2 | Round 13 | 🇵🇱 POLAND | 9 | 1NT | ♠4 | +2 | +1 |
| +3.9 | Round 16 | 🏴 ENGLAND | 4 | 2♠ | ♦K | -1 | +6 |
| +3.8 | Round 10 | 🇩🇰 DENMARK | 16 | 3NT | ♥T | -1 | -4 |
| +3.6 | Round 8 | 🇮🇳 INDIA | 27 | 4♠ | ♥5 | -1 | +10 |
| +3.5 | Round 9 | 🇬🇷 GREECE | 7 | 3♠ | ♣A | -1 | +0 |
| +3.1 | Round 8 | 🇮🇳 INDIA | 31 | 4♠ | ♦6 | = | +0 |
| +2.9 | Round 3 | 🇺🇸 USA1 | 24 | 4♠ | ♥4 | -1 | +5 |
| +2.9 | Round 8 | 🇮🇳 INDIA | 25 | 4♥ | ♦6 | = | +3 |
| +2.8 | Round 4 | 🇨🇳 CHINA | 29 | 5♦ | ♠3 | +1 | -1 |
| +2.8 | Round 16 | 🏴 ENGLAND | 2 | 3♠ | ♣A | -3 | +5 |
| +2.3 | Round 14 | 🇭🇰 HONG KONG CHINA | 23 | 3♦ | ♠A | +1 | -10 |
| +2.1 | Round 5 | 🇹🇼 CHINESE TAIPEI | 2 | 5♣ | ♥Q | -1 | +5 |
| +1.8 | Round 10 | 🇩🇰 DENMARK | 12 | 4♠ | ♥A | -1 | +6 |
| +1.8 | Round 16 | 🏴 ENGLAND | 7 | 3♠ | ♦6 | +1 | -1 |
| +1.7 | Round 3 | 🇺🇸 USA1 | 21 | 2NT | ♠9 | = | +0 |
| +1.5 | Round 8 | 🇮🇳 INDIA | 28 | 4♠ | ♣9 | +2 | -11 |
| +1.5 | Round 14 | 🇭🇰 HONG KONG CHINA | 18 | 2♥ | ♥7 | -1 | -3 |
| +1.4 | Round 10 | 🇩🇰 DENMARK | 15 | 1NT | ♠K | +1 | +1 |
| +1.2 | Round 4 | 🇨🇳 CHINA | 27 | 3♠ | ♦A | -2 | +8 |
| +1.2 | Round 9 | 🇬🇷 GREECE | 5 | 3NT | ♠9 | -1 | +5 |
| +1.2 | Round 10 | 🇩🇰 DENMARK | 14 | 3♥ | ♦K | -1 | +5 |
| +1.1 | Round 9 | 🇬🇷 GREECE | 6 | 3♠ | ♣Q | -1 | +6 |
| +1.1 | Round 13 | 🇵🇱 POLAND | 13 | 4♠ | ♠4 | +1 | +0 |
| +1.0 | Round 5 | 🇹🇼 CHINESE TAIPEI | 5 | 4♠ | ♦Q | -1 | -6 |
| +0.9 | Round 4 | 🇨🇳 CHINA | 26 | 1NT | ♠A | +3 | -10 |
| +0.8 | Round 7 | 🇫🇷 FRANCE | 20 | 1♠ | ♣Q | +3 | +1 |
| +0.5 | Round 5 | 🇹🇼 CHINESE TAIPEI | 3 | 4♠ | ♦7 | = | +0 |
| +0.5 | Round 7 | 🇫🇷 FRANCE | 21 | 3NT | ♥5 | +2 | -10 |
| +0.3 | Round 7 | 🇫🇷 FRANCE | 24 | 1NT | ♥3 | = | -1 |
| +0.2 | Round 17 | 🇨🇦 CANADA | 9 | 4♥ | ♦T | +2 | +11 |
| +0.1 | Round 3 | 🇺🇸 USA1 | 23 | 4♥ | ♣Q | +1 | +0 |
| +0.0 | Round 5 | 🇹🇼 CHINESE TAIPEI | 6 | 2♠ | ♥J | +2 | +10 |
| -0.1 | Round 5 | 🇹🇼 CHINESE TAIPEI | 7 | 4♠ | ♥4 | = | +0 |
| -0.1 | Round 8 | 🇮🇳 INDIA | 30 | 5♠ | ♥2 | +1 | -1 |
| -0.4 | Round 13 | 🇵🇱 POLAND | 12 | 4♠ | ♣4 | = | -1 |
| -0.5 | Round 3 | 🇺🇸 USA1 | 22 | 3NT | ♣6 | = | +0 |
| -0.5 | Round 14 | 🇭🇰 HONG KONG CHINA | 21 | 3NT | ♠4 | = | +1 |
| -0.6 | Round 13 | 🇵🇱 POLAND | 16 | 3♠ | ♥Q | +1 | -10 |
| -0.9 | Round 8 | 🇮🇳 INDIA | 26 | 2♥ | ♦A | = | -6 |
| -0.9 | Round 14 | 🇭🇰 HONG KONG CHINA | 20 | 4♠ | ♦Q | -1 | -11 |
| -1.2 | Round 3 | 🇺🇸 USA1 | 20 | 3NT | ♦4 | +1 | -1 |
| -1.4 | Round 16 | 🏴 ENGLAND | 3 | 3♣ | ♦6 | = | +0 |
| -1.5 | Round 16 | 🏴 ENGLAND | 6 | 4♥ | ♠K | = | +0 |
| -1.7 | Round 9 | 🇬🇷 GREECE | 2 | 3♣ | ♦K | = | +1 |
| -1.8 | Round 17 | 🇨🇦 CANADA | 11 | 4♠ | ♦3 | +1 | +0 |
| -2.2 | Round 4 | 🇨🇳 CHINA | 25 | 2♠ | ♣3 | +1 | -7 |
| -2.3 | Round 9 | 🇬🇷 GREECE | 1 | 4♠ | ♥6 | -1 | -10 |
| -2.5 | Round 16 | 🏴 ENGLAND | 1 | 4♠ | ♥Q | +2 | -11 |
| -2.6 | Round 3 | 🇺🇸 USA1 | 17 | 3NT | ♣2 | -1 | -5 |
| -2.7 | Round 6 | 🇮🇱 ISRAEL | 11 | 2♥ | ♦5 | -1 | -4 |
| -2.8 | Round 9 | 🇬🇷 GREECE | 4 | 4♥ | ♦Q | -2 | -8 |
| -2.9 | Round 4 | 🇨🇳 CHINA | 31 | 2♥ | ♠6 | = | +0 |
| -3.0 | Round 13 | 🇵🇱 POLAND | 11 | 3♥ | ♠3 | +1 | -4 |
| -3.1 | Round 6 | 🇮🇱 ISRAEL | 16 | 3♠ | ♣A | -1 | -5 |
| -3.1 | Round 17 | 🇨🇦 CANADA | 15 | 3NT | ♦3 | = | +2 |
| -3.6 | Round 14 | 🇭🇰 HONG KONG CHINA | 17 | 3NT | ♠4 | -1 | -10 |
| -3.6 | Round 16 | 🏴 ENGLAND | 8 | 3NT | ♥K | -1 | -5 |
| -3.8 | Round 7 | 🇫🇷 FRANCE | 19 | 4♥ | ♠Q | = | +0 |
| -4.7 | Round 3 | 🇺🇸 USA1 | 19 | 3♥ | ♥T | = | -6 |
| -4.9 | Round 9 | 🇬🇷 GREECE | 3 | 3NT | ♠Q | -4 | -8 |
| -5.1 | Round 6 | 🇮🇱 ISRAEL | 12 | 2♠ | ♣6 | -2 | +0 |
| -5.2 | Round 7 | 🇫🇷 FRANCE | 22 | 3NT | ♦A | +1 | -1 |
| -5.4 | Round 13 | 🇵🇱 POLAND | 10 | 4♠x | ♣A | -2 | +3 |
| -5.5 | Round 4 | 🇨🇳 CHINA | 30 | 3♠ | ♥K | -2 | -5 |
| -5.6 | Round 13 | 🇵🇱 POLAND | 15 | 2♦x | ♠T | -2 | -4 |
| -5.9 | Round 5 | 🇹🇼 CHINESE TAIPEI | 1 | 3♠ | ♣J | = | -1 |
| -5.9 | Round 5 | 🇹🇼 CHINESE TAIPEI | 8 | 2NT | ♦3 | -4 | -7 |
| -5.9 | Round 7 | 🇫🇷 FRANCE | 23 | 3♠ | ♥2 | = | +0 |
| -6.1 | Round 8 | 🇮🇳 INDIA | 32 | 4♠x | ♣A | -2 | -13 |
| -6.3 | Round 6 | 🇮🇱 ISRAEL | 15 | 5♠ | ♥8 | -1 | -10 |
| -6.5 | Round 14 | 🇭🇰 HONG KONG CHINA | 24 | 4♥ | ♣K | -1 | -10 |
| -7.8 | Round 10 | 🇩🇰 DENMARK | 9 | 4♠ | ♥6 | +2 | -11 |
| -8.0 | Round 8 | 🇮🇳 INDIA | 29 | 3♠ | ♦5 | -1 | -13 |
| -8.2 | Round 4 | 🇨🇳 CHINA | 28 | 6♣ | ♠Q | = | +11 |
| -8.2 | Round 6 | 🇮🇱 ISRAEL | 13 | 4♥ | ♦8 | -1 | -13 |
| -8.8 | Round 14 | 🇭🇰 HONG KONG CHINA | 19 | 4♠ | ♥A | -1 | -11 |
| -8.9 | Round 13 | 🇵🇱 POLAND | 14 | 3NT | ♦A | -3 | -12 |
| -9.6 | Round 10 | 🇩🇰 DENMARK | 10 | 4♠ | ♣K | = | -15 |
| -9.7 | Round 6 | 🇮🇱 ISRAEL | 10 | 5♣x | ♦7 | +1 | -8 |
| -10.2 | Round 17 | 🇨🇦 CANADA | 13 | 6♥ | ♣2 | -1 | -13 |
| -10.6 | Round 3 | 🇺🇸 USA1 | 18 | 4♥ | ♦A | = | -11 |
| -12.4 | Round 14 | 🇭🇰 HONG KONG CHINA | 22 | 6NT | ♠T | = | -13 |
| -13.4 | Round 5 | 🇹🇼 CHINESE TAIPEI | 4 | 4♥x | ♠T | = | -14 |