🇺🇸 XU Michael · USA
35rank
+43.6Butler · 96 bds
+0.45per board
±4.5swing
-0.17vs par /bd · #62/92
+0.63adjusted /bd
by round
vs par split: bidding +0.09 · play -0.23
Strength of schedule: opponents averaged +0.17/bd (a tough draw) → opponent-adjusted +0.63/bd
Card play — on target: opening leads 88.0% #6 of 92 · declarer play 77.8% #24 of 92 · defence 86.0% #18 of 92
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 94.1% (17) |
| Declarer play | 57.1% (7) | 85.0% (20) |
| Defence | 92.3% (13) | 83.3% (30) |
Opening leads by suit led: ♠ 50.0% (6) · ♥ 100.0% (7) · ♦ 100.0% (4) · ♣ 100.0% (8)
vs par by strain: NT +0.61 (28) · a suit -0.45 (67)
vs par by level: part-score -0.33 (36) · game +0.62 (53) · slam -5.67 (6)
By role: declaring +1.06/bd (-1.30 vs par · 53) · defending -0.29/bd (+1.23 vs par · 43)
By vulnerability: vulnerable +0.28/bd (+0.50 vs par · 48) · not vulnerable +0.63/bd (-0.83 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 6 | H.Luba | R.Song – J.Miao | Open | 12 | +23.7 | +1.97 | +3.25 |
| Round 7 | H.Luba | C.He – Z.Cheng | Closed | 12 | -0.4 | -0.03 | -1.75 |
| Round 10 | H.Luba | I.Foteinakis – I.Papaspyrou | Open | 12 | +13.0 | +1.08 | +1.25 |
| Round 11 | H.Luba | K.Dransfeld – M.Guendel | Open | 12 | -0.6 | -0.05 | -1.33 |
| Round 13 | H.Luba | PATEL VINAY – PATEL KUNAL | Open | 12 | +15.9 | +1.32 | -1.92 |
| Round 14 | H.Luba | A.Brogeland – M.Austad | Closed | 12 | -1.4 | -0.12 | -0.83 |
| Round 16 | H.Luba | Y.Lu – S.Liu | Closed | 12 | +5.0 | +0.42 | +2.67 |
| Round 17 | H.Luba | D.Tylvad – A.Tylvad | Open | 12 | -11.6 | -0.97 | -2.67 |
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 |
|---|---|---|---|---|---|---|---|
| +10.3 | Round 17 | 🇩🇰 DENMARK | 11 | 4♥x | ♣J | -3 | +9 |
| +9.3 | Round 6 | 🇨🇳 CHINA 1 | 6 | 6♥ | ♥2 | -1 | +12 |
| +8.9 | Round 14 | 🇳🇴 NORWAY | 1 | 1NTx | ♠9 | -3 | +3 |
| +8.6 | Round 13 | 🇮🇳 INDIA | 6 | 4♥ | ♣A | -5 | +9 |
| +7.4 | Round 13 | 🇮🇳 INDIA | 10 | 3NT | ♠J | = | +0 |
| +7.4 | Round 16 | 🇨🇳 CHINA 3 | 9 | 7♠ | ♠6 | = | +0 |
| +7.1 | Round 6 | 🇨🇳 CHINA 1 | 1 | 3NT | ♥5 | -2 | +11 |
| +6.7 | Round 10 | 🇬🇷 GREECE | 2 | 3NT | ♥5 | +1 | +10 |
| +6.7 | Round 13 | 🇮🇳 INDIA | 1 | 3NT | ♥Q | +3 | -14 |
| +6.7 | Round 13 | 🇮🇳 INDIA | 11 | 6♠ | ♦8 | +1 | -11 |
| +6.6 | Round 14 | 🇳🇴 NORWAY | 3 | 3♥ | ♦A | -3 | +10 |
| +5.6 | Round 16 | 🇨🇳 CHINA 3 | 4 | 3♠ | ♥2 | +1 | +8 |
| +5.5 | Round 7 | 🇨🇦 CANADA | 8 | 6♠ | ♦K | = | -11 |
| +5.5 | Round 16 | 🇨🇳 CHINA 3 | 12 | 5♥ | ♣2 | = | +8 |
| +5.1 | Round 16 | 🇨🇳 CHINA 3 | 10 | 3NT | ♠4 | -2 | +8 |
| +4.5 | Round 6 | 🇨🇳 CHINA 1 | 12 | 3NT | ♣5 | -2 | +11 |
| +4.5 | Round 16 | 🇨🇳 CHINA 3 | 6 | 4♥ | ♦9 | = | +0 |
| +4.4 | Round 6 | 🇨🇳 CHINA 1 | 10 | 3♣ | ♣3 | +1 | +10 |
| +4.4 | Round 7 | 🇨🇦 CANADA | 5 | 4♥ | ♠Q | -1 | +5 |
| +3.9 | Round 10 | 🇬🇷 GREECE | 9 | 4NT | ♠J | +2 | +13 |
| +3.8 | Round 16 | 🇨🇳 CHINA 3 | 8 | 2NT | ♦8 | = | +1 |
| +3.7 | Round 10 | 🇬🇷 GREECE | 4 | 2♠ | ♥J | = | +6 |
| +3.6 | Round 10 | 🇬🇷 GREECE | 5 | 3♣ | ♥8 | +2 | +1 |
| +3.6 | Round 11 | 🇩🇪 GERMANY | 3 | 2♠ | ♦A | +1 | +1 |
| +3.5 | Round 6 | 🇨🇳 CHINA 1 | 11 | 4♠ | ♣A | = | +0 |
| +3.4 | Round 10 | 🇬🇷 GREECE | 7 | 4♠ | ♣J | = | +0 |
| +3.2 | Round 11 | 🇩🇪 GERMANY | 10 | 2♦ | ♠6 | +1 | +6 |
| +3.2 | Round 13 | 🇮🇳 INDIA | 2 | 3NT | ♠8 | +2 | +0 |
| +2.9 | Round 6 | 🇨🇳 CHINA 1 | 4 | 5♦x | ♣A | -2 | -4 |
| +2.9 | Round 13 | 🇮🇳 INDIA | 8 | 5♦ | ♦7 | -1 | +4 |
| +2.8 | Round 14 | 🇳🇴 NORWAY | 2 | 3♠ | ♦K | -3 | +1 |
| +2.6 | Round 16 | 🇨🇳 CHINA 3 | 5 | 5♠ | ♥A | = | +4 |
| +2.5 | Round 17 | 🇩🇰 DENMARK | 9 | 4♥ | ♣K | = | +0 |
| +2.3 | Round 14 | 🇳🇴 NORWAY | 10 | 3NT | ♦Q | = | -1 |
| +2.0 | Round 10 | 🇬🇷 GREECE | 8 | 4♠ | ♣4 | -2 | +5 |
| +2.0 | Round 17 | 🇩🇰 DENMARK | 6 | 4♠ | ♦J | +1 | +0 |
| +1.9 | Round 7 | 🇨🇦 CANADA | 2 | 1NT | ♥10 | +1 | +5 |
| +1.7 | Round 17 | 🇩🇰 DENMARK | 4 | 3NT | ♥J | +2 | +0 |
| +1.6 | Round 6 | 🇨🇳 CHINA 1 | 5 | 2♥ | ♠A | -1 | +8 |
| +1.6 | Round 11 | 🇩🇪 GERMANY | 4 | 1NT | ♣Q | = | +2 |
| +1.6 | Round 11 | 🇩🇪 GERMANY | 12 | 4♠ | ♥J | +1 | +0 |
| +1.5 | Round 7 | 🇨🇦 CANADA | 1 | 3♠ | ♥K | -2 | -5 |
| +1.5 | Round 10 | 🇬🇷 GREECE | 1 | 4♥ | ♠7 | +1 | +0 |
| +1.2 | Round 13 | 🇮🇳 INDIA | 3 | 1NT | ♥3 | -2 | +1 |
| +1.1 | Round 7 | 🇨🇦 CANADA | 10 | 4♠ | ♥Q | -1 | +6 |
| +1.1 | Round 11 | 🇩🇪 GERMANY | 2 | 3♦ | ♠3 | +1 | -9 |
| +1.1 | Round 14 | 🇳🇴 NORWAY | 4 | 2♦ | ♥J | +1 | +0 |
| +1.0 | Round 11 | 🇩🇪 GERMANY | 1 | 4♥ | ♠J | = | +8 |
| +0.9 | Round 11 | 🇩🇪 GERMANY | 11 | 1NT | ♥6 | +1 | +1 |
| +0.8 | Round 10 | 🇬🇷 GREECE | 6 | 1NT | ♠5 | = | -1 |
| +0.8 | Round 17 | 🇩🇰 DENMARK | 8 | 3NT | ♠4 | -1 | +4 |
| +0.6 | Round 7 | 🇨🇦 CANADA | 3 | 3♣ | ♥A | -1 | -7 |
| +0.6 | Round 10 | 🇬🇷 GREECE | 3 | 4♥ | ♣Q | = | +0 |
| +0.5 | Round 11 | 🇩🇪 GERMANY | 5 | 3♣ | ♦J | = | -1 |
| +0.4 | Round 14 | 🇳🇴 NORWAY | 12 | 3♥ | ♠4 | -2 | -3 |
| +0.2 | Round 7 | 🇨🇦 CANADA | 12 | 3♥ | ♦5 | = | +1 |
| -0.1 | Round 6 | 🇨🇳 CHINA 1 | 2 | 1NT | ♠3 | = | +1 |
| -0.7 | Round 14 | 🇳🇴 NORWAY | 11 | 5♦x | ♠K | -2 | +0 |
| -0.8 | Round 11 | 🇩🇪 GERMANY | 6 | Pass | -3 | ||
| -0.9 | Round 6 | 🇨🇳 CHINA 1 | 8 | 4♠ | ♠6 | = | +0 |
| -1.1 | Round 6 | 🇨🇳 CHINA 1 | 3 | 5♦ | ♥J | -1 | -5 |
| -1.1 | Round 10 | 🇬🇷 GREECE | 10 | 3♦ | ♥J | +1 | +0 |
| -1.1 | Round 14 | 🇳🇴 NORWAY | 6 | 2♣ | ♣5 | = | +1 |
| -1.5 | Round 17 | 🇩🇰 DENMARK | 7 | 4♥ | ♣8 | +1 | +0 |
| -1.6 | Round 7 | 🇨🇦 CANADA | 4 | 5♠ | ♠7 | = | +0 |
| -1.6 | Round 11 | 🇩🇪 GERMANY | 7 | 2♥ | ♣7 | -1 | -5 |
| -1.7 | Round 7 | 🇨🇦 CANADA | 6 | 1NT | ♥K | = | -2 |
| -1.9 | Round 6 | 🇨🇳 CHINA 1 | 7 | 4♠ | ♥6 | -2 | -2 |
| -2.3 | Round 13 | 🇮🇳 INDIA | 7 | 4♠ | ♦8 | -1 | +0 |
| -2.5 | Round 10 | 🇬🇷 GREECE | 12 | 2♥ | ♠K | +2 | -8 |
| -2.9 | Round 11 | 🇩🇪 GERMANY | 9 | 5♦ | ♥A | -2 | -6 |
| -3.0 | Round 17 | 🇩🇰 DENMARK | 5 | 1NT | ♥J | = | +0 |
| -3.2 | Round 14 | 🇳🇴 NORWAY | 9 | 2♠ | ♦Q | = | -1 |
| -3.2 | Round 16 | 🇨🇳 CHINA 3 | 11 | 3NT | ♥4 | +1 | +10 |
| -3.3 | Round 13 | 🇮🇳 INDIA | 5 | 5♥ | ♣A | -3 | -4 |
| -3.3 | Round 13 | 🇮🇳 INDIA | 12 | 4♠ | ♥8 | +1 | +11 |
| -3.4 | Round 7 | 🇨🇦 CANADA | 9 | 2♦ | ♦6 | +1 | +0 |
| -3.4 | Round 17 | 🇩🇰 DENMARK | 3 | 4♥ | ♦A | +1 | -4 |
| -3.5 | Round 17 | 🇩🇰 DENMARK | 12 | 4♠ | ♦K | -1 | -6 |
| -3.6 | Round 16 | 🇨🇳 CHINA 3 | 7 | 4♠ | ♦K | +2 | +13 |
| -4.1 | Round 7 | 🇨🇦 CANADA | 7 | 1NT | ♦2 | -1 | -6 |
| -4.4 | Round 13 | 🇮🇳 INDIA | 4 | 2♦ | ♦3 | = | -12 |
| -4.4 | Round 16 | 🇨🇳 CHINA 3 | 1 | 5♣ | ♣2 | = | +0 |
| -4.4 | Round 17 | 🇩🇰 DENMARK | 1 | 3NT | ♣K | -1 | -11 |
| -4.8 | Round 7 | 🇨🇦 CANADA | 11 | 2♠x | ♦K | -1 | -7 |
| -4.8 | Round 17 | 🇩🇰 DENMARK | 2 | 4♠ | ♠6 | = | -12 |
| -4.9 | Round 14 | 🇳🇴 NORWAY | 7 | 3NT | ♥J | -3 | -9 |
| -5.6 | Round 6 | 🇨🇳 CHINA 1 | 9 | 4♥ | ♠9 | = | -3 |
| -6.5 | Round 14 | 🇳🇴 NORWAY | 8 | 6♣ | ♠A | -2 | -11 |
| -7.1 | Round 14 | 🇳🇴 NORWAY | 5 | 3NT | ♠6 | = | +0 |
| -7.5 | Round 13 | 🇮🇳 INDIA | 9 | 3NT | ♠9 | = | -7 |
| -7.9 | Round 16 | 🇨🇳 CHINA 3 | 2 | 4♥ | ♥6 | = | -7 |
| -8.3 | Round 17 | 🇩🇰 DENMARK | 10 | 2♠ | ♦9 | = | -12 |
| -8.8 | Round 11 | 🇩🇪 GERMANY | 8 | 4♥ | ♥J | -1 | -10 |
| -9.6 | Round 10 | 🇬🇷 GREECE | 11 | 4♠ | ♣A | = | -11 |
| -10.4 | Round 16 | 🇨🇳 CHINA 3 | 3 | 6NT | ♠7 | +1 | -13 |