LIN Chii-Mou · YBS
51rank
+21.3Butler · 100 bds
+0.21per board
±3.5swing
+0.07vs par /bd · #69/148
+0.39adjusted /bd
by round
vs par split: bidding -0.07 · play +0.14
Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted +0.39/bd
Card play — on target: opening leads 84.2% #36 of 148 · declarer play 86.2% #18 of 148 · defence 73.8% #141 of 148
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 90.9% (11) |
| Declarer play | 69.2% (13) | 100.0% (16) |
| Defence | 68.8% (16) | 76.9% (26) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 66.7% (6) · ♦ 87.5% (8) · ♣ 100.0% (4)
vs par by strain: NT -0.84 (38) · a suit +0.63 (62)
vs par by level: part-score -0.28 (43) · game +0.25 (52) · slam +1.20 (5)
By role: declaring +0.69/bd (-1.19 vs par · 58) · defending -0.45/bd (+1.81 vs par · 42)
By vulnerability: vulnerable -0.45/bd (-0.61 vs par · 51) · not vulnerable +0.90/bd (+0.78 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | K.Cheng | J.Datloff – R.Mcnay | Closed | 10 | -1.2 | -0.12 | +2.60 |
| Round 2 | K.Cheng | K.Kranyak – P.Becker | Closed | 10 | +9.6 | +0.96 | -1.40 |
| Round 3 | Y.Zhang | R.Oshlag – P.Munafo | Closed | 10 | -5.6 | -0.56 | -2.30 |
| Round 4 | Y.Zhang | C.Bjaring – J.Ostberg | Closed | 10 | +22.5 | +2.25 | +1.40 |
| Round 5 | K.Cheng | A.Kowalski – J.Romanski | Closed | 10 | -2.9 | -0.29 | -2.30 |
| Round 6 | K.Cheng | D.Simson – J.Aker | Closed | 10 | -5.7 | -0.57 | -1.00 |
| Round 7 | Y.Zhang | M.Kwiecien – K.Martens | Closed | 10 | -15.4 | -1.54 | +1.40 |
| Round 8 | Y.Zhang | D.Mcguire – W.Burt | Closed | 10 | +4.8 | +0.48 | +0.60 |
| Round 9 | K.Cheng | S.Zeligman – V.Melman | Closed | 10 | +16.7 | +1.67 | +3.10 |
| Round 10 | K.Cheng | M.Itabashi – E.Wold | Closed | 10 | -1.5 | -0.15 | -1.40 |
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 |
|---|---|---|---|---|---|---|---|
| +14.6 | Round 4 | KASLE | 15 | 5♥x | ♠K | = | +16 |
| +9.2 | Round 4 | KASLE | 16 | 4♠ | ♥3 | -2 | +12 |
| +7.6 | Round 1 | NORTHWEST PLUS | 7 | 3NT | ♦6 | -2 | +8 |
| +7.1 | Round 5 | VYTAS | 27 | 4♥ | ♥2 | = | +0 |
| +7.1 | Round 9 | MARKOWICZ | 10 | 4♠ | ♦4 | = | +3 |
| +6.7 | Round 10 | LEWIS | 12 | 3NT | ♦6 | = | +6 |
| +6.0 | Round 7 | MILNER | 14 | 4♠ | ♦J | = | +11 |
| +5.2 | Round 8 | HALMAN | 30 | 3NT | ♠2 | = | +0 |
| +5.0 | Round 6 | SIMSON | 3 | 4♥ | ♣10 | +2 | +13 |
| +4.7 | Round 3 | USARUSSELL | 9 | 4♠ | ♣6 | -1 | +5 |
| +4.2 | Round 2 | KRANYAK | 19 | 4♥ | ♥4 | = | +0 |
| +3.9 | Round 1 | NORTHWEST PLUS | 2 | 4♠ | ♥3 | -2 | +9 |
| +3.8 | Round 7 | MILNER | 13 | 1♠ | ♠9 | = | +5 |
| +3.6 | Round 10 | LEWIS | 11 | 4♦ | ♥2 | -2 | +6 |
| +3.3 | Round 6 | SIMSON | 6 | 2♠ | ♣A | -2 | +2 |
| +3.3 | Round 9 | MARKOWICZ | 5 | 4♠ | ♣7 | -2 | +0 |
| +3.2 | Round 3 | USARUSSELL | 1 | 3NT | ♣4 | +1 | +7 |
| +2.5 | Round 4 | KASLE | 11 | 3NT | ♣Q | = | -1 |
| +2.4 | Round 2 | KRANYAK | 16 | 6♠ | ♥Q | +1 | -11 |
| +2.4 | Round 8 | HALMAN | 22 | 3♠ | ♥6 | -1 | +10 |
| +2.4 | Round 9 | MARKOWICZ | 2 | 4♠ | ♦K | -2 | +6 |
| +2.3 | Round 9 | MARKOWICZ | 1 | 3NT | ♥10 | -1 | +10 |
| +2.1 | Round 2 | KRANYAK | 14 | 2♠ | ♦7 | +1 | -6 |
| +2.1 | Round 5 | VYTAS | 21 | 3NT | ♣2 | +1 | +1 |
| +2.1 | Round 10 | LEWIS | 14 | 3NT | ♣6 | +1 | +0 |
| +2.0 | Round 9 | MARKOWICZ | 3 | 1NT | ♣7 | = | +0 |
| +1.9 | Round 8 | HALMAN | 24 | 4♥ | ♠7 | +1 | +0 |
| +1.5 | Round 5 | VYTAS | 24 | 6NT | ♣A | = | +0 |
| +1.4 | Round 2 | KRANYAK | 11 | 2♦ | ♣A | -1 | -2 |
| +1.4 | Round 8 | HALMAN | 21 | 3NT | ♠6 | +2 | +2 |
| +1.4 | Round 8 | HALMAN | 26 | 2♥ | ♦Q | +1 | +0 |
| +1.3 | Round 10 | LEWIS | 20 | 5♣ | ♠A | = | -2 |
| +1.2 | Round 6 | SIMSON | 4 | 4♥ | ♣A | = | +3 |
| +1.1 | Round 6 | SIMSON | 1 | 3♣ | ♦9 | = | +0 |
| +1.1 | Round 9 | MARKOWICZ | 6 | 2♥ | ♣3 | +2 | +1 |
| +1.0 | Round 2 | KRANYAK | 13 | 6♠ | ♣10 | = | +8 |
| +1.0 | Round 4 | KASLE | 20 | 3NT | ♥7 | +3 | -13 |
| +1.0 | Round 10 | LEWIS | 15 | 4NT | ♥9 | -2 | +7 |
| +0.9 | Round 3 | USARUSSELL | 2 | 1NT | ♥6 | +2 | -6 |
| +0.9 | Round 4 | KASLE | 17 | 5♣x | ♦A | -2 | +4 |
| +0.9 | Round 4 | KASLE | 18 | 2♠ | ♥7 | = | -1 |
| +0.7 | Round 5 | VYTAS | 25 | 3NT | ♣6 | +1 | +1 |
| +0.5 | Round 3 | USARUSSELL | 5 | 5♣ | ♥5 | = | +2 |
| +0.4 | Round 8 | HALMAN | 23 | 3NT | ♦4 | +1 | +0 |
| +0.4 | Round 9 | MARKOWICZ | 9 | 4♠ | ♠A | +1 | +1 |
| +0.3 | Round 2 | KRANYAK | 18 | 3NT | ♥4 | +1 | +1 |
| +0.3 | Round 4 | KASLE | 12 | 6♦ | ♣A | = | -2 |
| +0.2 | Round 7 | MILNER | 11 | 4♥ | ♣A | +2 | -11 |
| +0.1 | Round 1 | NORTHWEST PLUS | 1 | 3NT | ♠3 | -1 | -4 |
| +0.1 | Round 2 | KRANYAK | 12 | 3♣ | ♦K | +1 | +0 |
| +0.1 | Round 5 | VYTAS | 23 | 5♦ | ♣K | -1 | -1 |
| +0.1 | Round 6 | SIMSON | 7 | 4♥ | ♣9 | +1 | +0 |
| +0.1 | Round 7 | MILNER | 12 | 3♦ | ♥3 | +1 | +7 |
| -0.0 | Round 1 | NORTHWEST PLUS | 5 | 3♠ | ♠3 | -1 | +2 |
| -0.0 | Round 2 | KRANYAK | 15 | 4♥ | ♠9 | = | +0 |
| -0.0 | Round 3 | USARUSSELL | 6 | 3NT | ♠4 | = | +0 |
| +0.0 | Round 9 | MARKOWICZ | 4 | 4♥ | ♣K | +1 | +0 |
| +0.0 | Round 9 | MARKOWICZ | 7 | 3♥ | ♠A | -1 | +11 |
| -0.1 | Round 5 | VYTAS | 29 | 3NT | ♥7 | = | +1 |
| -0.1 | Round 8 | HALMAN | 28 | 1NT | ♥K | = | -1 |
| -0.5 | Round 2 | KRANYAK | 17 | 2♥ | ♦A | -1 | -2 |
| -0.5 | Round 6 | SIMSON | 9 | 3♠ | ♣A | -2 | -5 |
| -0.7 | Round 1 | NORTHWEST PLUS | 3 | 1NT | ♦K | = | +2 |
| -0.7 | Round 3 | USARUSSELL | 8 | 2NT | ♦2 | +2 | -1 |
| -1.0 | Round 6 | SIMSON | 10 | 2♠ | ♥8 | +1 | +0 |
| -1.2 | Round 1 | NORTHWEST PLUS | 4 | 3♦ | ♥K | +1 | +10 |
| -1.3 | Round 4 | KASLE | 19 | 1NT | ♠A | = | -1 |
| -1.4 | Round 2 | KRANYAK | 20 | 2♥ | ♠5 | -2 | -2 |
| -1.4 | Round 10 | LEWIS | 18 | 1NT | ♦10 | -2 | +0 |
| -1.6 | Round 1 | NORTHWEST PLUS | 6 | 3♠ | ♣A | = | -1 |
| -1.7 | Round 4 | KASLE | 14 | 2♠ | ♦9 | = | +1 |
| -1.7 | Round 8 | HALMAN | 29 | 3♣ | ♥J | -1 | -5 |
| -1.8 | Round 5 | VYTAS | 28 | 2♠ | ♥A | = | +0 |
| -1.9 | Round 9 | MARKOWICZ | 8 | 4♠ | ♣J | +1 | -1 |
| -2.2 | Round 7 | MILNER | 15 | 2♠ | ♥2 | -1 | -5 |
| -2.2 | Round 7 | MILNER | 19 | 1NT | ♠4 | +2 | +8 |
| -2.4 | Round 7 | MILNER | 16 | 3♠ | ♦A | = | -1 |
| -2.4 | Round 8 | HALMAN | 27 | 3♣ | ♦3 | = | +0 |
| -2.5 | Round 3 | USARUSSELL | 10 | 2NT | ♠10 | -1 | +0 |
| -2.6 | Round 1 | NORTHWEST PLUS | 8 | 1NT | ♥K | +1 | -1 |
| -2.6 | Round 1 | NORTHWEST PLUS | 9 | 1NT | ♥5 | -1 | +0 |
| -2.8 | Round 6 | SIMSON | 2 | 4♥ | ♦K | = | +1 |
| -2.9 | Round 10 | LEWIS | 17 | 2♥ | ♦2 | +3 | -2 |
| -3.2 | Round 3 | USARUSSELL | 4 | 4♥ | ♠10 | -1 | -6 |
| -3.2 | Round 5 | VYTAS | 30 | 2♣ | ♦2 | +1 | -5 |
| -3.4 | Round 5 | VYTAS | 22 | 2♥ | ♦10 | +3 | -10 |
| -3.7 | Round 6 | SIMSON | 5 | 3NT | ♥6 | = | -7 |
| -3.7 | Round 8 | HALMAN | 25 | 4♠ | ♦A | = | +0 |
| -3.9 | Round 3 | USARUSSELL | 3 | 4♠ | ♥8 | -1 | -12 |
| -3.9 | Round 4 | KASLE | 13 | 3NT | ♥7 | +3 | -1 |
| -3.9 | Round 10 | LEWIS | 13 | 4NT | ♥J | +2 | -17 |
| -3.9 | Round 10 | LEWIS | 16 | 3NT | ♠5 | -1 | -6 |
| -4.1 | Round 1 | NORTHWEST PLUS | 10 | 1NT | ♣10 | = | +1 |
| -4.1 | Round 10 | LEWIS | 19 | 3NT | ♥6 | = | -6 |
| -4.3 | Round 7 | MILNER | 18 | 3NT | ♦K | +2 | +0 |
| -4.6 | Round 3 | USARUSSELL | 7 | 3NT | ♣K | -1 | -12 |
| -5.9 | Round 5 | VYTAS | 26 | 1NT | ♥10 | +2 | -10 |
| -7.1 | Round 7 | MILNER | 20 | 2♦ | ♠2 | +3 | -11 |
| -7.3 | Round 7 | MILNER | 17 | 6♣ | ♦9 | +1 | +11 |
| -8.4 | Round 6 | SIMSON | 8 | 4♠ | ♥K | -4 | -17 |