KOIVU Oskari · FINLAND
13rank
-52.3Butler · 112 bds
-0.47per board
±5.7swing
+0.36vs par /bd · #6/17
-0.45adjusted /bd
by round
vs par split: bidding +0.18 · play +0.18
Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted -0.45/bd
Card play — on target: opening leads 65.5% #12 of 17 · declarer play 79.3% #6 of 17 · defence 87.0% #7 of 17
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 54.5% (11) | 72.2% (18) |
| Declarer play | 62.5% (8) | 85.7% (21) |
| Defence | 95.2% (21) | 81.8% (33) |
Opening leads by suit led: ♠ 63.6% (11) · ♥ 100.0% (3) · ♦ 66.7% (6) · ♣ 55.6% (9)
vs par by strain: NT +0.62 (40) · a suit +0.21 (72)
vs par by level: part-score +1.06 (33) · game -0.23 (73) · slam +3.67 (6)
By role: declaring -0.01/bd (-1.62 vs par · 58) · defending -0.95/bd (+2.48 vs par · 54)
By vulnerability: vulnerable +0.77/bd (+1.04 vs par · 56) · not vulnerable -1.70/bd (-0.32 vs par · 56)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Semifinal | H.Huhtamaki | S.Ghosh – A.Chakraborty | Closed | 14 | +9.5 | +0.68 | +1.86 |
| Semifinal | H.Huhtamaki | S.Bar – S.Das | Closed | 14 | -7.2 | -0.51 | +0.43 |
| Semifinal | H.Huhtamaki | S.Bar – S.Das | Closed | 14 | +11.7 | +0.84 | +1.79 |
| Semifinal | H.Huhtamaki | S.Ghosh – A.Chakraborty | Closed | 14 | -4.9 | -0.35 | +4.07 |
| Final | H.Huhtamaki | J.Stoeckli – A.Calmanovici | Open | 14 | -30.7 | -2.19 | -1.71 |
| Final | H.Huhtamaki | J.Stoeckli – A.Calmanovici | Open | 14 | -2.1 | -0.15 | +0.57 |
| Final | H.Huhtamaki | J.Stoeckli – A.Calmanovici | Open | 14 | -11.6 | -0.83 | -3.14 |
| Final | H.Huhtamaki | J.Stoeckli – A.Calmanovici | Open | 14 | -17.0 | -1.21 | -1.00 |
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 | Final | SWEECE | 28 | 5♣x | ♦A | +1 | +13 |
| +13.0 | Semifinal | INDIA U31 | 4 | 6♠ | ♣J | +1 | +13 |
| +13.0 | Semifinal | INDIA U31 | 55 | 5♣x | ♦A | -5 | +12 |
| +13.0 | Final | SWEECE | 26 | 3NT | ♠4 | -1 | +12 |
| +10.7 | Semifinal | INDIA U31 | 11 | 3♠x | ♣3 | +2 | +13 |
| +9.7 | Semifinal | INDIA U31 | 32 | 6♣x | ♠K | -1 | +13 |
| +9.3 | Semifinal | INDIA U31 | 22 | 3♣ | ♦7 | -3 | -1 |
| +9.0 | Semifinal | INDIA U31 | 7 | 2♥ | ♣5 | -2 | +7 |
| +8.7 | Semifinal | INDIA U31 | 33 | 5♥ | ♠A | = | +0 |
| +8.0 | Semifinal | INDIA U31 | 46 | 3NT | ♥J | = | +10 |
| +8.0 | Final | SWEECE | 52 | 5♥ | ♠K | = | +4 |
| +7.0 | Semifinal | INDIA U31 | 2 | 4♠ | ♣10 | +1 | +8 |
| +6.7 | Semifinal | INDIA U31 | 40 | 4♠ | ♥2 | +1 | +0 |
| +6.3 | Semifinal | INDIA U31 | 54 | 3NT | ♠5 | -2 | +13 |
| +6.0 | Final | SWEECE | 29 | 6♥ | ♠6 | = | +10 |
| +6.0 | Final | SWEECE | 36 | 1NT | ♠7 | +1 | +1 |
| +5.3 | Semifinal | INDIA U31 | 49 | 4♥ | ♠A | +2 | +9 |
| +5.0 | Semifinal | INDIA U31 | 15 | 3NT | ♠4 | +1 | +0 |
| +4.7 | Semifinal | INDIA U31 | 5 | 6♦ | ♠A | -1 | +10 |
| +4.7 | Semifinal | INDIA U31 | 39 | 4♠ | ♦5 | +2 | +1 |
| +4.7 | Final | SWEECE | 33 | 4♠x | ♣9 | -1 | -9 |
| +4.3 | Semifinal | INDIA U31 | 30 | 5♥ | ♠K | -1 | +8 |
| +4.0 | Semifinal | INDIA U31 | 35 | 4♥ | ♣5 | = | +0 |
| +4.0 | Final | SWEECE | 13 | 5♦ | ♠5 | = | +0 |
| +4.0 | Final | SWEECE | 44 | 5♣ | ♥A | -1 | +12 |
| +3.7 | Semifinal | INDIA U31 | 20 | 5♦ | ♠K | -1 | -6 |
| +3.0 | Semifinal | INDIA U31 | 36 | 1NT | ♠6 | +1 | +1 |
| +2.3 | Semifinal | INDIA U31 | 21 | 3♦ | ♠J | -1 | -2 |
| +2.0 | Semifinal | INDIA U31 | 14 | 4♥ | ♠J | -1 | +4 |
| +2.0 | Final | SWEECE | 5 | 3NT | ♣3 | +3 | +11 |
| +2.0 | Final | SWEECE | 17 | 4♠ | ♣A | -1 | -5 |
| +2.0 | Final | SWEECE | 25 | 3♥x | ♥9 | -1 | +2 |
| +2.0 | Final | SWEECE | 48 | 1NT | ♠6 | +1 | +1 |
| +1.7 | Final | SWEECE | 20 | 3NT | ♥2 | -3 | +10 |
| +1.3 | Semifinal | INDIA U31 | 52 | 4♠ | ♣7 | = | +1 |
| +1.3 | Final | SWEECE | 15 | 4♦ | ♥A | -1 | +4 |
| +1.0 | Final | SWEECE | 41 | 4NT | ♥7 | +3 | -17 |
| +1.0 | Final | SWEECE | 43 | 1NT | ♦2 | +1 | +7 |
| +1.0 | Final | SWEECE | 45 | 1NT | ♣Q | +2 | +0 |
| +1.0 | Final | SWEECE | 49 | 3♥ | ♣Q | +1 | +6 |
| +1.0 | Final | SWEECE | 55 | 1NT | ♦2 | +1 | +1 |
| +0.3 | Semifinal | INDIA U31 | 17 | 3NT | ♠5 | +2 | +10 |
| +0.3 | Semifinal | INDIA U31 | 28 | 4♠ | ♠10 | +1 | +0 |
| +0.3 | Final | SWEECE | 2 | 3NT | ♦5 | +1 | +0 |
| +0.0 | Semifinal | INDIA U31 | 10 | 3NT | ♠9 | = | +0 |
| +0.0 | Semifinal | INDIA U31 | 16 | 3NT | ♠J | +1 | +0 |
| +0.0 | Semifinal | INDIA U31 | 38 | 4♥ | ♦5 | +2 | +13 |
| +0.0 | Semifinal | INDIA U31 | 51 | 4♠ | ♣Q | = | +0 |
| +0.0 | Final | SWEECE | 7 | 3NT | ♠5 | +1 | +0 |
| +0.0 | Final | SWEECE | 12 | 3NT | ♠10 | +1 | -1 |
| +0.0 | Final | SWEECE | 35 | 3NT | ♦10 | +1 | +0 |
| +0.0 | Final | SWEECE | 39 | 4♥ | ♠Q | = | +0 |
| +0.0 | Final | SWEECE | 46 | 4♥ | ♦A | -1 | -6 |
| +0.0 | Final | SWEECE | 47 | 3NT | ♠5 | -2 | +2 |
| +0.0 | Final | SWEECE | 53 | 3NT | ♦4 | +3 | -14 |
| -0.3 | Semifinal | INDIA U31 | 8 | 4♥ | ♣10 | +2 | +2 |
| -0.3 | Semifinal | INDIA U31 | 24 | 4♠x | ♥K | -2 | -4 |
| -0.3 | Final | SWEECE | 31 | 3NT | ♥8 | +1 | -1 |
| -0.7 | Semifinal | INDIA U31 | 29 | 3NT | ♦5 | +2 | +10 |
| -0.7 | Final | SWEECE | 6 | 1NT | ♥8 | -2 | +1 |
| -1.0 | Semifinal | INDIA U31 | 43 | 2♠ | ♦6 | = | +0 |
| -1.0 | Final | SWEECE | 4 | 4♥ | ♠Q | = | +0 |
| -1.0 | Final | SWEECE | 23 | 2♥ | ♠J | -1 | -1 |
| -1.3 | Final | SWEECE | 3 | 3♣ | ♣K | -1 | +2 |
| -1.3 | Final | SWEECE | 38 | 2♠ | ♦A | +1 | +0 |
| -1.7 | Semifinal | INDIA U31 | 19 | 4♠ | ♥10 | = | +0 |
| -1.7 | Semifinal | INDIA U31 | 23 | 3♠ | ♦A | -2 | +10 |
| -1.7 | Semifinal | INDIA U31 | 47 | 4♥ | ♦Q | +2 | +9 |
| -1.7 | Final | SWEECE | 8 | 4♥ | ♦10 | -2 | -5 |
| -1.7 | Final | SWEECE | 30 | 3NT | ♦6 | +2 | +0 |
| -2.3 | Semifinal | INDIA U31 | 42 | 3♥ | ♣K | = | -1 |
| -2.3 | Final | SWEECE | 19 | 4♠ | ♣A | = | -3 |
| -2.3 | Final | SWEECE | 32 | 3NT | ♦J | = | +2 |
| -2.7 | Semifinal | INDIA U31 | 45 | 3NT | ♥7 | -1 | -5 |
| -2.7 | Final | SWEECE | 22 | 2♠ | ♥A | -1 | +1 |
| -2.7 | Final | SWEECE | 27 | 1NT | ♠Q | +3 | +6 |
| -3.0 | Semifinal | INDIA U31 | 6 | 4♠ | ♠9 | -3 | +5 |
| -3.3 | Semifinal | INDIA U31 | 1 | 4♦ | ♣4 | +1 | +1 |
| -3.3 | Semifinal | INDIA U31 | 13 | 6♠ | ♦K | -1 | -17 |
| -3.7 | Semifinal | INDIA U31 | 25 | 4♠ | ♦10 | +1 | +1 |
| -3.7 | Semifinal | INDIA U31 | 26 | 4♠ | ♥K | = | +0 |
| -3.7 | Final | SWEECE | 11 | 4♥ | ♠3 | +1 | -8 |
| -4.0 | Semifinal | INDIA U31 | 44 | 3♠ | ♠4 | +1 | +8 |
| -4.0 | Final | SWEECE | 40 | 3NT | ♥3 | -1 | -6 |
| -4.7 | Semifinal | INDIA U31 | 41 | 3NT | ♣3 | = | -10 |
| -5.0 | Semifinal | INDIA U31 | 48 | 3NT | ♦Q | -1 | +12 |
| -5.0 | Final | SWEECE | 16 | 3NT | ♠4 | +1 | +1 |
| -5.0 | Final | SWEECE | 34 | 3NT | ♣J | -1 | -11 |
| -5.3 | Final | SWEECE | 9 | 4♣ | ♦A | +1 | +4 |
| -5.7 | Semifinal | INDIA U31 | 56 | 4♥ | ♠A | -4 | +1 |
| -5.7 | Final | SWEECE | 37 | 4♠ | ♥A | -1 | -5 |
| -6.0 | Semifinal | INDIA U31 | 37 | 1NT | ♣10 | -4 | -3 |
| -6.0 | Semifinal | INDIA U31 | 50 | 3♠ | ♣Q | +1 | -6 |
| -6.0 | Final | SWEECE | 1 | 4♠x | ♦5 | -1 | -6 |
| -6.0 | Final | SWEECE | 21 | 5♣ | ♦2 | -1 | -12 |
| -6.0 | Final | SWEECE | 54 | 3♥ | ♣Q | = | +0 |
| -6.7 | Semifinal | INDIA U31 | 27 | 5♣ | ♦A | = | -3 |
| -7.0 | Semifinal | INDIA U31 | 34 | 1NTx | ♣Q | = | -3 |
| -7.7 | Semifinal | INDIA U31 | 12 | 3♥ | ♦9 | -2 | -8 |
| -8.0 | Final | SWEECE | 18 | 3♣x | ♠A | -1 | -11 |
| -8.0 | Final | SWEECE | 51 | 4♥ | ♠K | -2 | -13 |
| -8.3 | Final | SWEECE | 14 | 3NT | ♠A | -1 | -10 |
| -8.7 | Semifinal | INDIA U31 | 31 | 3♠ | ♥7 | -1 | -4 |
| -8.7 | Final | SWEECE | 24 | 5♥ | ♣A | +1 | -9 |
| -9.0 | Semifinal | INDIA U31 | 3 | 1NT | ♣2 | -1 | -1 |
| -9.0 | Final | SWEECE | 10 | 4♥ | ♠10 | -5 | -12 |
| -9.0 | Final | SWEECE | 42 | 5♠ | ♥4 | = | -8 |
| -10.0 | Final | SWEECE | 56 | 3NT | ♦9 | = | -5 |
| -10.3 | Semifinal | INDIA U31 | 9 | 4♥ | ♣A | -1 | -11 |
| -10.3 | Semifinal | INDIA U31 | 18 | 3NT | ♣9 | = | +1 |
| -11.0 | Final | SWEECE | 50 | 4♠ | ♦Q | +2 | -9 |
| -12.7 | Semifinal | INDIA U31 | 53 | 6♣ | ♠A | = | -7 |