DE KNIJFF Martin · DE KNIJFF
37rank
+56.2Butler · 120 bds
+0.47per board
±5.1swing
+1.38vs par /bd · #5/240
+0.18adjusted /bd
by round
vs par split: bidding +0.91 · play +0.47
Strength of schedule: opponents averaged -0.29/bd (an easy draw) → opponent-adjusted +0.18/bd
Card play — on target: opening leads 76.2% #136 of 239 · defence 88.9% #92 of 240
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 69.2% (13) | 78.0% (50) |
| Defence | 100.0% (13) | 86.0% (50) |
Opening leads by suit led: ♠ 84.2% (19) · ♥ 62.5% (16) · ♦ 92.9% (14) · ♣ 64.3% (14)
vs par by strain: NT +0.66 (29) · a suit +1.61 (91)
vs par by level: part-score +1.98 (42) · game +1.13 (63) · slam +0.80 (15)
By role: declaring -0.07/bd (-1.81 vs par · 57) · defending +0.96/bd (+4.27 vs par · 63)
By vulnerability: vulnerable +0.68/bd (+1.83 vs par · 60) · not vulnerable +0.25/bd (+0.93 vs par · 60)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | P.Fredin | J.Shah – D.Majumdar | Open | 10 | -5.9 | -0.59 | -0.30 |
| Round 4 | P.Fredin | L.Taciuc – C.Stancescu | Closed | 10 | -1.6 | -0.16 | +3.20 |
| Round 5 | P.Fredin | B.Amin – N.Hassan | Open | 10 | -44.7 | -4.47 | -3.90 |
| Round 7 | P.Fredin | A.Pidal – M.Panadero | Open | 10 | +35.8 | +3.58 | +5.80 |
| Round 8 | P.Fredin | R.Minero – P.Musso | Closed | 10 | +3.9 | +0.39 | +0.80 |
| Round 9 | P.Fredin | W.Starkowski – S.Golebiowski | Closed | 10 | +9.6 | +0.96 | +3.30 |
| Round 10 | P.Fredin | V.Dragan – V.Porkhun | Closed | 10 | +3.3 | +0.33 | +0.40 |
| Round 11 | P.Fredin | R.Grzelak – J.Romanski | Open | 10 | +2.9 | +0.29 | -1.40 |
| Round 12 | P.Fredin | M.Karpov – T.Laanemae | Closed | 10 | +24.5 | +2.45 | +5.30 |
| Round 13 | P.Fredin | M.Gundogdu – L.Imamoglu | Closed | 10 | +4.5 | +0.45 | -0.50 |
| Round 14 | P.Fredin | E.Erichsen – S.Gillis | Closed | 10 | +36.3 | +3.63 | +4.10 |
| Round 15 | P.Fredin | B.Marina – I.Coldea | Closed | 10 | -12.4 | -1.24 | -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 |
|---|---|---|---|---|---|---|---|
| +14.3 | Round 12 | ESTONIA | 28 | 7♠ | ♠3 | -1 | +17 |
| +13.3 | Round 7 | GUTI | 3 | 5♠x | ♦A | -2 | +12 |
| +13.0 | Round 14 | GILLIS | 15 | 3♠x | ♠3 | -4 | +14 |
| +11.6 | Round 10 | NEVER CLAIM | 3 | 4♥ | ♣10 | -4 | +14 |
| +11.5 | Round 7 | GUTI | 2 | 3NT | ♥J | +1 | +12 |
| +10.3 | Round 14 | GILLIS | 17 | 3♠x | ♦A | -3 | +9 |
| +10.2 | Round 7 | GUTI | 7 | 4♥ | ♣3 | -2 | +17 |
| +10.0 | Round 12 | ESTONIA | 24 | 6♥ | ♦3 | = | +11 |
| +9.9 | Round 15 | DRACULA | 24 | 6♥ | ♣3 | -1 | +14 |
| +9.5 | Round 11 | BRIDGE24PL B | 14 | 3NT | ♦3 | = | +7 |
| +9.1 | Round 4 | PACIFIC | 6 | 4♠ | ♥3 | -1 | +12 |
| +8.1 | Round 12 | ESTONIA | 29 | 2♠ | ♥3 | +1 | +12 |
| +7.3 | Round 8 | CUNEO | 11 | 3NT | ♦3 | +2 | +14 |
| +6.6 | Round 7 | GUTI | 4 | 5♦x | ♠3 | -3 | +12 |
| +6.2 | Round 9 | POLAND | 30 | 5♣ | ♦6 | +2 | +14 |
| +5.4 | Round 10 | NEVER CLAIM | 10 | 4♠ | ♣3 | -3 | +10 |
| +5.1 | Round 9 | POLAND | 26 | 2♥ | ♣3 | -1 | +5 |
| +4.7 | Round 4 | PACIFIC | 8 | 3♣ | ♣7 | -1 | +10 |
| +4.7 | Round 9 | POLAND | 23 | 3NT | ♥Q | +1 | +0 |
| +4.3 | Round 14 | GILLIS | 19 | 2♠ | ♥J | +1 | +10 |
| +4.3 | Round 15 | DRACULA | 23 | 4♠x | ♣A | -1 | +8 |
| +4.2 | Round 8 | CUNEO | 15 | 4♠ | ♥Q | = | +8 |
| +4.0 | Round 14 | GILLIS | 20 | 2♣ | ♦A | = | +12 |
| +3.9 | Round 9 | POLAND | 21 | 1NT | ♠J | = | +0 |
| +3.6 | Round 5 | DURONTO RAJSHAHI | 14 | 2♥ | ♦3 | +1 | +0 |
| +3.6 | Round 9 | POLAND | 28 | 4♠ | ♥3 | = | +3 |
| +3.6 | Round 13 | NONAME | 2 | 4♥ | ♣3 | -1 | +11 |
| +3.5 | Round 13 | NONAME | 9 | 4♠ | ♣3 | = | +0 |
| +3.2 | Round 12 | ESTONIA | 22 | 4♣x | ♥K | +1 | +5 |
| +3.0 | Round 14 | GILLIS | 16 | 3♠ | ♥3 | = | +7 |
| +2.8 | Round 3 | GOVINDACHARI TEAM | 29 | 2NT | ♥3 | = | +0 |
| +2.6 | Round 13 | NONAME | 6 | 3NT | ♥3 | +3 | -10 |
| +2.5 | Round 14 | GILLIS | 12 | 4♣ | ♠9 | -1 | +4 |
| +2.5 | Round 14 | GILLIS | 18 | 4♠ | ♦J | +1 | -13 |
| +2.4 | Round 7 | GUTI | 8 | 4♣ | ♠3 | -1 | +4 |
| +2.3 | Round 4 | PACIFIC | 7 | 4♠ | ♦3 | -1 | +6 |
| +2.3 | Round 7 | GUTI | 5 | 5♥x | ♦5 | -3 | +5 |
| +2.3 | Round 12 | ESTONIA | 25 | 1♠ | ♠K | +1 | +5 |
| +2.1 | Round 10 | NEVER CLAIM | 9 | 4♥ | ♦3 | +1 | +0 |
| +2.1 | Round 11 | BRIDGE24PL B | 18 | 4♥ | ♠3 | +1 | +1 |
| +2.0 | Round 10 | NEVER CLAIM | 1 | 3NT | ♣3 | +2 | +1 |
| +1.9 | Round 14 | GILLIS | 11 | 3♠ | ♣Q | -3 | +2 |
| +1.7 | Round 10 | NEVER CLAIM | 4 | 3♣ | ♦A | -3 | +5 |
| +1.4 | Round 3 | GOVINDACHARI TEAM | 21 | 1NT | ♦3 | -1 | -2 |
| +1.4 | Round 3 | GOVINDACHARI TEAM | 25 | 4♥ | ♠2 | -1 | +0 |
| +1.4 | Round 11 | BRIDGE24PL B | 11 | 6♥ | ♠3 | = | -10 |
| +1.3 | Round 8 | CUNEO | 19 | 4♥ | ♠3 | = | +0 |
| +1.2 | Round 8 | CUNEO | 14 | 3NT | ♣3 | = | +0 |
| +1.0 | Round 13 | NONAME | 7 | 1NT | ♥3 | +1 | +0 |
| +0.9 | Round 11 | BRIDGE24PL B | 12 | 1NT | ♥3 | = | +1 |
| +0.4 | Round 5 | DURONTO RAJSHAHI | 11 | 1NT | ♠3 | = | +1 |
| +0.4 | Round 7 | GUTI | 1 | 4♠ | ♥A | +2 | -11 |
| +0.4 | Round 12 | ESTONIA | 23 | 6♦ | ♠3 | +1 | +13 |
| +0.4 | Round 15 | DRACULA | 27 | 4♠x | ♥A | -2 | -3 |
| +0.4 | Round 15 | DRACULA | 29 | 1NT | ♠3 | = | +2 |
| +0.3 | Round 13 | NONAME | 4 | 4♥ | ♠K | +1 | +0 |
| +0.2 | Round 8 | CUNEO | 18 | 3NT | ♠3 | +1 | +0 |
| +0.2 | Round 12 | ESTONIA | 26 | 3NT | ♠3 | +1 | +0 |
| +0.2 | Round 15 | DRACULA | 21 | 2♥ | ♦3 | -1 | -1 |
| +0.1 | Round 8 | CUNEO | 17 | 3NT | ♠J | +1 | +0 |
| +0.1 | Round 11 | BRIDGE24PL B | 15 | 4♠ | ♦3 | = | -1 |
| +0.1 | Round 13 | NONAME | 10 | 4♥ | ♦K | = | +0 |
| -0.1 | Round 9 | POLAND | 27 | 2♥ | ♦J | = | +0 |
| -0.2 | Round 5 | DURONTO RAJSHAHI | 15 | 4♠ | ♥3 | +1 | +0 |
| -0.2 | Round 10 | NEVER CLAIM | 7 | 2♥ | ♦3 | +1 | -1 |
| -0.3 | Round 8 | CUNEO | 16 | 4♠ | ♥3 | = | +0 |
| -0.3 | Round 9 | POLAND | 22 | 4♠ | ♥3 | +2 | +13 |
| -0.3 | Round 15 | DRACULA | 22 | 3♦ | ♣K | = | -1 |
| -0.4 | Round 3 | GOVINDACHARI TEAM | 26 | 3♣ | ♣J | +2 | +10 |
| -0.5 | Round 8 | CUNEO | 20 | 3NT | ♥3 | = | -2 |
| -0.6 | Round 4 | PACIFIC | 4 | 6♥ | ♠Q | +1 | +1 |
| -0.7 | Round 7 | GUTI | 6 | 3♣ | ♠3 | -3 | -2 |
| -0.8 | Round 11 | BRIDGE24PL B | 20 | 3NT | ♠3 | +2 | -1 |
| -0.9 | Round 3 | GOVINDACHARI TEAM | 28 | 3♠ | ♥3 | +1 | -1 |
| -0.9 | Round 12 | ESTONIA | 21 | 4♥ | ♠3 | = | +1 |
| -0.9 | Round 13 | NONAME | 8 | 2♦ | ♠3 | +2 | -7 |
| -1.0 | Round 4 | PACIFIC | 2 | 4♠ | ♥3 | -1 | -6 |
| -1.3 | Round 4 | PACIFIC | 1 | 6NT | ♦3 | = | +10 |
| -1.3 | Round 9 | POLAND | 29 | 3♥ | ♥3 | +1 | +8 |
| -1.4 | Round 10 | NEVER CLAIM | 5 | 2NT | ♥Q | -1 | -5 |
| -1.5 | Round 11 | BRIDGE24PL B | 16 | 5♠x | ♦3 | -1 | -7 |
| -1.5 | Round 13 | NONAME | 3 | 2♠ | ♥Q | -2 | +1 |
| -1.6 | Round 3 | GOVINDACHARI TEAM | 22 | 3♥ | ♣8 | -1 | +2 |
| -1.6 | Round 3 | GOVINDACHARI TEAM | 23 | 6♠ | ♠2 | +1 | -13 |
| -1.6 | Round 3 | GOVINDACHARI TEAM | 30 | 3NT | ♥3 | = | +1 |
| -1.6 | Round 13 | NONAME | 5 | 4♠ | ♣K | = | +1 |
| -2.1 | Round 3 | GOVINDACHARI TEAM | 27 | 2♥ | ♣J | -2 | +0 |
| -2.1 | Round 11 | BRIDGE24PL B | 13 | 3♥ | ♠A | +2 | -2 |
| -2.2 | Round 11 | BRIDGE24PL B | 19 | 5♦x | ♣A | -2 | +0 |
| -2.4 | Round 9 | POLAND | 25 | 5♦ | ♥3 | -1 | -10 |
| -2.4 | Round 15 | DRACULA | 28 | 4♠ | ♣3 | = | +0 |
| -2.6 | Round 13 | NONAME | 1 | 3♥ | ♠Q | = | -1 |
| -2.6 | Round 14 | GILLIS | 13 | 2♠ | ♥J | +2 | -10 |
| -2.6 | Round 14 | GILLIS | 14 | 3♦ | ♥3 | +2 | +6 |
| -2.7 | Round 4 | PACIFIC | 5 | 3NT | ♥A | +1 | +1 |
| -2.9 | Round 4 | PACIFIC | 10 | 4♥ | ♥9 | = | -3 |
| -3.1 | Round 5 | DURONTO RAJSHAHI | 19 | 4♥ | ♣3 | +1 | +0 |
| -3.3 | Round 3 | GOVINDACHARI TEAM | 24 | 5♦ | ♥3 | -2 | +0 |
| -3.6 | Round 12 | ESTONIA | 27 | 4♥ | ♦3 | -2 | +1 |
| -3.7 | Round 4 | PACIFIC | 9 | 4♥ | ♠3 | -2 | -6 |
| -3.9 | Round 7 | GUTI | 9 | 4♥ | ♣K | +1 | -4 |
| -4.1 | Round 5 | DURONTO RAJSHAHI | 12 | 1NT | ♥3 | -1 | -5 |
| -4.3 | Round 8 | CUNEO | 12 | 3NT | ♠J | = | +1 |
| -4.5 | Round 11 | BRIDGE24PL B | 17 | 1NT | ♦3 | -3 | -2 |
| -4.9 | Round 5 | DURONTO RAJSHAHI | 20 | 3NT | ♠3 | +4 | +12 |
| -5.0 | Round 10 | NEVER CLAIM | 6 | 3NT | ♠9 | -5 | -8 |
| -5.3 | Round 8 | CUNEO | 13 | 6♣ | ♠J | +1 | -13 |
| -5.5 | Round 4 | PACIFIC | 3 | 6♠x | ♥3 | -5 | +7 |
| -6.0 | Round 10 | NEVER CLAIM | 8 | 4♠ | ♥3 | = | -7 |
| -6.3 | Round 5 | DURONTO RAJSHAHI | 17 | 6♦ | ♣A | -1 | -11 |
| -6.3 | Round 7 | GUTI | 10 | 6♥ | ♠3 | +1 | +13 |
| -6.7 | Round 15 | DRACULA | 26 | 4♥ | ♣3 | -3 | -10 |
| -6.9 | Round 10 | NEVER CLAIM | 2 | 5♦x | ♥3 | -1 | -5 |
| -8.2 | Round 15 | DRACULA | 30 | 5♣ | ♥3 | = | -7 |
| -9.5 | Round 12 | ESTONIA | 30 | 2♣x | ♦K | +1 | -12 |
| -9.8 | Round 5 | DURONTO RAJSHAHI | 16 | 6♥ | ♥3 | -2 | -14 |
| -9.8 | Round 9 | POLAND | 24 | 7♠ | ♥3 | = | +0 |
| -10.0 | Round 5 | DURONTO RAJSHAHI | 13 | 3NT | ♥3 | -3 | -9 |
| -10.0 | Round 15 | DRACULA | 25 | 5♦x | ♠K | = | -4 |
| -10.3 | Round 5 | DURONTO RAJSHAHI | 18 | 6♥ | ♥Q | -1 | -13 |