KOISTINEN Kauko · CUSHING
415rank
-39.7Butler · 100 bds
-0.40per board
±4.0swing
-1.10vs par /bd · #490/518
-0.70adjusted /bd
by round
vs par split: bidding -1.07 · play -0.03
Strength of schedule: opponents averaged -0.30/bd (an easy draw) → opponent-adjusted -0.70/bd
Card play — on target: opening leads 77.3% #317 of 518 · declarer play 86.2% #68 of 517 · defence 86.4% #153 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 57.1% (7) | 86.7% (15) |
| Declarer play | 84.6% (13) | 87.5% (16) |
| Defence | 88.2% (17) | 85.2% (27) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 100.0% (4) · ♦ 40.0% (5) · ♣ 75.0% (8)
vs par by strain: NT +0.17 (36) · a suit -1.81 (64)
vs par by level: part-score -1.10 (38) · game -1.05 (56) · slam -1.50 (6)
By role: declaring -0.28/bd (-2.88 vs par · 56) · defending -0.54/bd (+1.16 vs par · 44)
By vulnerability: vulnerable -0.66/bd (-2.27 vs par · 51) · not vulnerable -0.12/bd (+0.12 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Romanovska | C.Rimstedt – J.Upmark | Open | 10 | -8.2 | -0.82 | -2.80 |
| Round 2 | M.Romanovska | L.Yang – Y.Wang | Open | 10 | -16.9 | -1.69 | -1.00 |
| Round 3 | M.Romanovska | J.Lall – S.Moss | Open | 10 | +23.6 | +2.36 | +2.60 |
| Round 4 | M.Romanovska | M.Kamil – S.Culham | Open | 10 | -27.7 | -2.77 | -4.40 |
| Round 5 | M.Romanovska | Y.Peng – P.Lu | Open | 10 | +9.8 | +0.98 | +0.50 |
| Round 6 | M.Romanovska | Y.Sun – L.Hu | Closed | 10 | -12.8 | -1.28 | -2.60 |
| Round 7 | M.Romanovska | S.Hammer – E.Piza | Open | 10 | +0.9 | +0.09 | -1.40 |
| Round 8 | M.Romanovska | J.Griffin – P.Griffin | Open | 10 | -5.3 | -0.53 | -1.40 |
| Round 9 | M.Romanovska | M.Sheng – W.Tian | Closed | 10 | -0.7 | -0.07 | +1.90 |
| Round 10 | M.Romanovska | C.Malcolm – M.Malcolm | Open | 10 | -2.4 | -0.24 | -2.40 |
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 |
|---|---|---|---|---|---|---|---|
| +11.0 | Round 7 | COSTA RICA | 15 | 3NT | ♠Q | = | +10 |
| +8.9 | Round 5 | YBM | 30 | 6♦ | ♠10 | -2 | +11 |
| +7.4 | Round 7 | COSTA RICA | 14 | 3NT | ♥K | -1 | +10 |
| +6.0 | Round 3 | MOSS | 4 | 3NT | ♠3 | +3 | +1 |
| +6.0 | Round 3 | MOSS | 5 | 4♥ | ♠7 | = | -1 |
| +5.7 | Round 1 | PERLMUTTER | 10 | 3NT | ♠Q | -3 | +4 |
| +5.6 | Round 9 | FEIXIANG | 14 | 5♦ | ♥A | = | +7 |
| +5.4 | Round 10 | KCKATS | 30 | 4♥ | ♠J | = | +0 |
| +4.8 | Round 5 | YBM | 28 | 1NT | ♠3 | = | +5 |
| +3.7 | Round 3 | MOSS | 10 | 1NT | ♠9 | -2 | +3 |
| +3.6 | Round 3 | MOSS | 1 | 3NT | ♣4 | +1 | +7 |
| +3.6 | Round 5 | YBM | 29 | 3NT | ♥5 | +1 | +0 |
| +3.4 | Round 10 | KCKATS | 29 | 3♦ | ♠2 | -2 | +2 |
| +3.3 | Round 3 | MOSS | 7 | 2♦ | ♠6 | = | +0 |
| +2.9 | Round 5 | YBM | 27 | 3NT | ♠4 | -1 | +5 |
| +2.9 | Round 8 | GRIFFIN | 4 | 5♥x | ♣A | -1 | +9 |
| +2.7 | Round 1 | PERLMUTTER | 3 | 5♦ | ♥K | +1 | -10 |
| +2.7 | Round 2 | LU DONG | 18 | 2♦ | ♥K | -2 | +2 |
| +2.7 | Round 10 | KCKATS | 25 | 5♠ | ♣K | = | +1 |
| +2.6 | Round 7 | COSTA RICA | 17 | 2♠ | ♥7 | +2 | -6 |
| +2.1 | Round 2 | LU DONG | 17 | 5♦ | ♥K | -1 | +8 |
| +2.0 | Round 7 | COSTA RICA | 16 | 3NT | ♥6 | +3 | +1 |
| +2.0 | Round 7 | COSTA RICA | 19 | 3♣ | ♦K | -1 | +0 |
| +2.0 | Round 9 | FEIXIANG | 19 | 4♥ | ♣4 | = | +0 |
| +1.9 | Round 1 | PERLMUTTER | 6 | 3NT | ♣3 | +1 | +0 |
| +1.9 | Round 8 | GRIFFIN | 1 | 3NT | ♣4 | +1 | +0 |
| +1.8 | Round 6 | ORG | 6 | 4♠ | ♦3 | +1 | +0 |
| +1.8 | Round 8 | GRIFFIN | 7 | 2♥ | ♣3 | +1 | +11 |
| +1.7 | Round 1 | PERLMUTTER | 7 | 1♠ | ♥Q | = | -1 |
| +1.6 | Round 6 | ORG | 10 | 3♦ | ♥7 | = | +0 |
| +1.5 | Round 6 | ORG | 4 | 3NT | ♣5 | = | -1 |
| +1.4 | Round 2 | LU DONG | 14 | 3NT | ♠7 | +3 | +14 |
| +1.4 | Round 8 | GRIFFIN | 8 | 3♣ | ♦9 | -1 | -3 |
| +1.3 | Round 3 | MOSS | 9 | 3♦ | ♦3 | = | -1 |
| +1.0 | Round 8 | GRIFFIN | 5 | 2♠ | ♦J | = | +1 |
| +0.6 | Round 6 | ORG | 8 | 2♠ | ♣3 | +1 | +6 |
| +0.5 | Round 6 | ORG | 5 | 4♠x | ♣A | +2 | -5 |
| +0.4 | Round 2 | LU DONG | 20 | 4♥ | ♠7 | +1 | +0 |
| +0.4 | Round 3 | MOSS | 8 | 1NT | ♥3 | -1 | +8 |
| +0.4 | Round 9 | FEIXIANG | 16 | 4♠ | ♦8 | +1 | +0 |
| +0.3 | Round 2 | LU DONG | 13 | 4♠ | ♦8 | +2 | -13 |
| +0.3 | Round 3 | MOSS | 6 | 4♥ | ♣8 | = | +1 |
| +0.3 | Round 4 | KAMIL | 17 | 3NT | ♥6 | +1 | +0 |
| +0.3 | Round 6 | ORG | 2 | 3NT | ♠2 | = | +0 |
| +0.2 | Round 9 | FEIXIANG | 13 | 3NT | ♦J | -1 | +6 |
| +0.1 | Round 2 | LU DONG | 11 | 3♠ | ♥9 | = | -4 |
| +0.1 | Round 10 | KCKATS | 28 | 5♦ | ♥Q | -2 | +0 |
| -0.1 | Round 3 | MOSS | 3 | 3NT | ♦4 | +1 | +0 |
| -0.1 | Round 9 | FEIXIANG | 20 | 1NT | ♦6 | +1 | -1 |
| -0.1 | Round 10 | KCKATS | 21 | 3♠ | ♣4 | -2 | +1 |
| -0.2 | Round 5 | YBM | 24 | 2♠ | ♣8 | +1 | -7 |
| -0.3 | Round 1 | PERLMUTTER | 4 | 4♠ | ♣5 | +1 | +0 |
| -0.3 | Round 9 | FEIXIANG | 17 | 4♥ | ♣3 | +1 | +10 |
| -0.4 | Round 7 | COSTA RICA | 11 | 1NT | ♥2 | = | +1 |
| -0.5 | Round 4 | KAMIL | 11 | 2♥ | ♦2 | = | +0 |
| -0.5 | Round 5 | YBM | 25 | 4♠x | ♣K | -1 | +0 |
| -0.5 | Round 9 | FEIXIANG | 11 | 4♠ | ♣J | +1 | +0 |
| -0.5 | Round 9 | FEIXIANG | 15 | 4♠ | ♦9 | +1 | +0 |
| -0.6 | Round 9 | FEIXIANG | 18 | 3NT | ♣3 | +2 | -1 |
| -0.7 | Round 2 | LU DONG | 16 | 3NT | ♥9 | +1 | +0 |
| -0.7 | Round 8 | GRIFFIN | 3 | 1NT | ♠3 | -1 | +2 |
| -0.9 | Round 3 | MOSS | 2 | 4♥x | ♠7 | -2 | +8 |
| -0.9 | Round 7 | COSTA RICA | 20 | 2♦ | ♣8 | -2 | +9 |
| -1.0 | Round 1 | PERLMUTTER | 2 | 3NT | ♥5 | +1 | +0 |
| -1.1 | Round 4 | KAMIL | 12 | 3♣ | ♠8 | -1 | -1 |
| -1.1 | Round 4 | KAMIL | 14 | 4♥ | ♦Q | -1 | +2 |
| -1.2 | Round 4 | KAMIL | 18 | 3♠ | ♣2 | = | +0 |
| -1.2 | Round 10 | KCKATS | 22 | 3♥ | ♣A | = | +0 |
| -1.5 | Round 5 | YBM | 23 | 2♥ | ♣3 | = | +1 |
| -1.7 | Round 5 | YBM | 21 | 2♦ | ♣6 | = | +0 |
| -1.7 | Round 10 | KCKATS | 23 | 4♥ | ♠2 | -1 | -12 |
| -1.8 | Round 8 | GRIFFIN | 10 | 3♠ | ♣5 | +2 | -9 |
| -2.3 | Round 5 | YBM | 26 | 6NT | ♠7 | = | +0 |
| -2.5 | Round 1 | PERLMUTTER | 1 | 1NT | ♥K | = | +0 |
| -2.6 | Round 8 | GRIFFIN | 6 | 3NT | ♠3 | +1 | -10 |
| -2.7 | Round 8 | GRIFFIN | 2 | 5♦ | ♥A | -1 | -12 |
| -2.8 | Round 6 | ORG | 9 | 2♠ | ♥A | +1 | -6 |
| -2.9 | Round 10 | KCKATS | 24 | 2♠ | ♠2 | = | +1 |
| -3.0 | Round 1 | PERLMUTTER | 5 | 3♠ | ♥Q | -1 | -5 |
| -3.0 | Round 4 | KAMIL | 19 | 3♦ | ♥8 | -1 | -10 |
| -3.0 | Round 7 | COSTA RICA | 12 | 4♣ | ♥4 | = | -9 |
| -3.2 | Round 6 | ORG | 7 | 3♣ | ♠4 | +2 | -11 |
| -3.8 | Round 2 | LU DONG | 12 | 4♠ | ♣10 | = | -10 |
| -4.0 | Round 6 | ORG | 1 | 3NT | ♠3 | +1 | -8 |
| -4.0 | Round 10 | KCKATS | 26 | 4♥x | ♠A | -1 | -7 |
| -4.1 | Round 10 | KCKATS | 27 | 4♥ | ♦K | -1 | -10 |
| -4.2 | Round 5 | YBM | 22 | 3NT | ♣10 | = | -10 |
| -4.4 | Round 4 | KAMIL | 20 | 3NT | ♣5 | -1 | -6 |
| -4.8 | Round 2 | LU DONG | 19 | 4♣ | ♥A | -2 | -7 |
| -4.8 | Round 4 | KAMIL | 15 | 3NT | ♠Q | -2 | -5 |
| -5.0 | Round 1 | PERLMUTTER | 8 | 3NT | ♠4 | -1 | -10 |
| -5.5 | Round 4 | KAMIL | 13 | 3NT | ♥8 | = | -10 |
| -6.4 | Round 4 | KAMIL | 16 | 3♣ | ♦A | -3 | -14 |
| -6.5 | Round 8 | GRIFFIN | 9 | 3NT | ♦5 | = | -3 |
| -6.9 | Round 9 | FEIXIANG | 12 | 6♦x | ♣A | -2 | -2 |
| -8.4 | Round 1 | PERLMUTTER | 9 | 3NT | ♠10 | -1 | -6 |
| -9.1 | Round 6 | ORG | 3 | 6♥ | ♦9 | +1 | -1 |
| -9.2 | Round 7 | COSTA RICA | 18 | 4♠ | ♦A | +2 | -13 |
| -10.6 | Round 7 | COSTA RICA | 13 | 6♠ | ♦3 | -2 | -17 |
| -14.6 | Round 2 | LU DONG | 15 | 6♣ | ♠K | = | +0 |