🇨🇳 CAI Zixi · CHINA
13rank
+114.6Butler · 140 bds
+0.82per board
±4.9swing
-0.46vs par /bd · #79/99
+0.36adjusted /bd
by round
vs par split: bidding -0.34 · play -0.14
Strength of schedule: opponents averaged -0.46/bd (an easy draw) → opponent-adjusted +0.36/bd
Card play — on target: opening leads 82.1% #20 of 99 · declarer play 75.7% #41 of 99 · defence 78.0% #85 of 99
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 92.3% (13) | 73.3% (15) |
| Declarer play | 83.3% (12) | 72.0% (25) |
| Defence | 68.2% (22) | 83.8% (37) |
Opening leads by suit led: ♠ 84.6% (13) · ♥ 85.7% (7) · ♦ 80.0% (5) · ♣ 66.7% (3)
vs par by strain: NT +0.43 (47) · a suit -0.91 (93)
vs par by level: part-score +0.14 (57) · game -0.30 (73) · slam -5.10 (10)
By role: declaring +1.28/bd (-1.86 vs par · 80) · defending +0.21/bd (+1.40 vs par · 60)
By vulnerability: vulnerable +0.85/bd (-0.64 vs par · 70) · not vulnerable +0.79/bd (-0.29 vs par · 70)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | F.Yuan | C.Shi – C.Chen | Closed | 14 | +13.3 | +0.95 | -1.64 |
| Round 4 | F.Yuan | R.Giannotti – H.Paoli | Open | 14 | +29.8 | +2.13 | +1.93 |
| Round 6 | F.Yuan | F.Alter – L.Streck | Open | 14 | -31.5 | -2.25 | -2.29 |
| Round 7 | F.Yuan | M.Shabeer – R.Vadumangudi Balasundaram | Closed | 14 | +47.1 | +3.36 | +3.86 |
| Round 8 | F.Yuan | V.Ildeikins – E.Gavrilova | Closed | 14 | +26.2 | +1.87 | +1.00 |
| Round 11 | F.Yuan | S.Caspersen – C.Lahrmann | Open | 14 | -11.8 | -0.84 | -2.71 |
| Round 12 | F.Yuan | Y.Liu – A.Leung | Closed | 14 | -11.8 | -0.84 | -2.29 |
| Round 14 | F.Yuan | S.Clementsson – A.Sandin | Open | 14 | +25.3 | +1.81 | -0.07 |
| Round 15 | F.Yuan | H.Berk – D.Soukup | Closed | 14 | +3.2 | +0.23 | -2.21 |
| Round 16 | F.Yuan | T.Irby – G.Cacace | Open | 14 | +24.8 | +1.77 | -0.21 |
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 |
|---|---|---|---|---|---|---|---|
| +14.4 | Round 7 | 🇮🇳 INDIA | 20 | 3NT | ♥8 | = | +15 |
| +13.5 | Round 14 | 🇸🇪 SWEDEN | 22 | 5♥x | ♠5 | -4 | +15 |
| +11.8 | Round 4 | 🇧🇷 BRAZIL | 13 | 3♥x | ♠Q | -3 | +5 |
| +11.3 | Round 7 | 🇮🇳 INDIA | 28 | 4♥x | ♣A | -4 | +16 |
| +10.9 | Round 8 | 🇱🇻 LATVIA | 14 | 2♠x | ♦J | +2 | +11 |
| +10.9 | Round 16 | 🇧🇲 BERMUDA | 26 | 6♠ | ♥K | = | +0 |
| +10.3 | Round 8 | 🇱🇻 LATVIA | 13 | 4♥ | ♦8 | = | +3 |
| +9.6 | Round 6 | 🇩🇪 GERMANY | 8 | 6♣ | ♥A | -1 | +10 |
| +9.0 | Round 15 | 🇺🇸 USA | 9 | 4♠ | ♣7 | = | +3 |
| +8.7 | Round 14 | 🇸🇪 SWEDEN | 26 | 2NT | ♠4 | +2 | +10 |
| +7.8 | Round 1 | 🇹🇼 CHINESE TAIPEI | 9 | 6♠x | ♥K | -1 | +11 |
| +7.8 | Round 16 | 🇧🇲 BERMUDA | 21 | 4♠x | ♦9 | +1 | -7 |
| +7.4 | Round 1 | 🇹🇼 CHINESE TAIPEI | 7 | 4♠ | ♦2 | = | +9 |
| +7.3 | Round 7 | 🇮🇳 INDIA | 17 | 3♥ | ♥10 | -1 | +6 |
| +6.9 | Round 7 | 🇮🇳 INDIA | 25 | 3♦ | ♥10 | +1 | +1 |
| +6.9 | Round 11 | 🇩🇰 DENMARK | 9 | 4♠ | ♥A | = | +1 |
| +6.6 | Round 4 | 🇧🇷 BRAZIL | 14 | 4♠ | ♣A | +1 | +4 |
| +6.3 | Round 11 | 🇩🇰 DENMARK | 10 | 1NTx | ♠7 | +1 | +6 |
| +6.1 | Round 11 | 🇩🇰 DENMARK | 11 | 4♥ | ♦Q | = | +8 |
| +6.0 | Round 15 | 🇺🇸 USA | 11 | 4♠ | ♣K | = | -1 |
| +5.9 | Round 14 | 🇸🇪 SWEDEN | 16 | 4♥ | ♣4 | -3 | +11 |
| +5.8 | Round 12 | 🇸🇬 SINGAPORE | 23 | 5♣ | ♥7 | = | -1 |
| +5.1 | Round 12 | 🇸🇬 SINGAPORE | 18 | 3NT | ♠10 | -2 | +6 |
| +5.0 | Round 12 | 🇸🇬 SINGAPORE | 25 | 2NT | ♦2 | -1 | +5 |
| +4.8 | Round 7 | 🇮🇳 INDIA | 26 | 3♠ | ♦4 | -2 | +10 |
| +4.6 | Round 16 | 🇧🇲 BERMUDA | 23 | 2♠ | ♦A | = | +1 |
| +4.4 | Round 1 | 🇹🇼 CHINESE TAIPEI | 2 | 5♦ | ♣A | -2 | +5 |
| +4.3 | Round 11 | 🇩🇰 DENMARK | 4 | 4♥ | ♥6 | -2 | +7 |
| +4.2 | Round 4 | 🇧🇷 BRAZIL | 8 | 3♠ | ♠9 | -2 | +5 |
| +4.2 | Round 16 | 🇧🇲 BERMUDA | 27 | 4♠ | ♥2 | +1 | +1 |
| +4.1 | Round 8 | 🇱🇻 LATVIA | 6 | 3♦ | ♥3 | -1 | +12 |
| +4.1 | Round 8 | 🇱🇻 LATVIA | 7 | 4♠ | ♥7 | +2 | +2 |
| +4.0 | Round 7 | 🇮🇳 INDIA | 16 | 3♠ | ♦9 | -1 | +4 |
| +3.9 | Round 4 | 🇧🇷 BRAZIL | 6 | 2♠ | ♠9 | = | +0 |
| +3.9 | Round 8 | 🇱🇻 LATVIA | 11 | 3♥x | ♥2 | -2 | +10 |
| +3.6 | Round 1 | 🇹🇼 CHINESE TAIPEI | 4 | 6♦ | ♥K | +1 | -13 |
| +3.6 | Round 1 | 🇹🇼 CHINESE TAIPEI | 14 | 5♦ | ♦3 | -1 | -4 |
| +3.6 | Round 16 | 🇧🇲 BERMUDA | 24 | 1NT | ♠8 | -1 | +13 |
| +3.5 | Round 4 | 🇧🇷 BRAZIL | 12 | 1NT | ♣7 | -2 | +2 |
| +3.4 | Round 16 | 🇧🇲 BERMUDA | 20 | 4♠x | ♥4 | -1 | +8 |
| +3.1 | Round 12 | 🇸🇬 SINGAPORE | 19 | 1NT | ♠9 | = | +5 |
| +3.1 | Round 16 | 🇧🇲 BERMUDA | 15 | 3NT | ♥9 | -1 | -5 |
| +2.9 | Round 7 | 🇮🇳 INDIA | 15 | 4♥ | ♠Q | +1 | +0 |
| +2.8 | Round 4 | 🇧🇷 BRAZIL | 7 | 3NT | ♠7 | +1 | +0 |
| +2.8 | Round 7 | 🇮🇳 INDIA | 23 | 3NT | ♣K | = | +10 |
| +2.6 | Round 1 | 🇹🇼 CHINESE TAIPEI | 8 | 3♠ | ♠2 | +1 | -4 |
| +2.6 | Round 11 | 🇩🇰 DENMARK | 14 | 4♥x | ♦A | -1 | +6 |
| +2.5 | Round 6 | 🇩🇪 GERMANY | 2 | 3NT | ♥8 | = | +0 |
| +2.5 | Round 7 | 🇮🇳 INDIA | 19 | 4♠ | ♦A | -1 | +4 |
| +2.5 | Round 12 | 🇸🇬 SINGAPORE | 15 | 4NT | ♣3 | +2 | -13 |
| +2.4 | Round 11 | 🇩🇰 DENMARK | 8 | 2NT | ♠Q | -1 | +5 |
| +2.4 | Round 14 | 🇸🇪 SWEDEN | 20 | 4♥ | ♠4 | = | +0 |
| +2.2 | Round 15 | 🇺🇸 USA | 8 | 3♣ | ♣J | = | +0 |
| +2.2 | Round 16 | 🇧🇲 BERMUDA | 17 | 1NT | ♣10 | +2 | +1 |
| +2.1 | Round 15 | 🇺🇸 USA | 7 | 3♦ | ♣A | +1 | +0 |
| +2.0 | Round 14 | 🇸🇪 SWEDEN | 21 | 1NT | ♥4 | -1 | -1 |
| +1.9 | Round 1 | 🇹🇼 CHINESE TAIPEI | 5 | 2♦ | ♣A | +1 | -1 |
| +1.9 | Round 14 | 🇸🇪 SWEDEN | 15 | 3♠ | ♥8 | +1 | -6 |
| +1.8 | Round 4 | 🇧🇷 BRAZIL | 1 | 2NT | ♥8 | -1 | +4 |
| +1.5 | Round 8 | 🇱🇻 LATVIA | 3 | 3♦ | ♥J | +2 | +1 |
| +1.5 | Round 15 | 🇺🇸 USA | 2 | 3NT | ♦7 | +2 | +0 |
| +1.5 | Round 16 | 🇧🇲 BERMUDA | 16 | 3NT | ♠4 | = | -1 |
| +1.4 | Round 4 | 🇧🇷 BRAZIL | 4 | 2♥ | ♣7 | = | +6 |
| +1.1 | Round 14 | 🇸🇪 SWEDEN | 19 | 3♥ | ♦4 | +2 | -9 |
| +0.9 | Round 1 | 🇹🇼 CHINESE TAIPEI | 3 | 3NT | ♣Q | +1 | +0 |
| +0.9 | Round 8 | 🇱🇻 LATVIA | 10 | 5♣ | ♠A | = | -13 |
| +0.8 | Round 14 | 🇸🇪 SWEDEN | 27 | 3NT | ♥K | = | +0 |
| +0.6 | Round 15 | 🇺🇸 USA | 1 | 4♠ | ♣K | +1 | +0 |
| +0.5 | Round 6 | 🇩🇪 GERMANY | 12 | 4♠ | ♥4 | = | +1 |
| +0.5 | Round 11 | 🇩🇰 DENMARK | 3 | 3NT | ♥6 | +3 | +1 |
| +0.5 | Round 14 | 🇸🇪 SWEDEN | 18 | 2♠ | ♦Q | +1 | +0 |
| +0.5 | Round 16 | 🇧🇲 BERMUDA | 19 | 3NT | ♠4 | +1 | +1 |
| +0.4 | Round 16 | 🇧🇲 BERMUDA | 28 | 3NT | +1 | +1 | |
| +0.2 | Round 15 | 🇺🇸 USA | 14 | 3♣ | ♥A | -1 | -2 |
| +0.1 | Round 7 | 🇮🇳 INDIA | 18 | 2♥ | ♥J | +1 | +0 |
| -0.0 | Round 15 | 🇺🇸 USA | 4 | 4♥ | ♠10 | +1 | +0 |
| -0.1 | Round 8 | 🇱🇻 LATVIA | 12 | 3NT | ♠8 | +1 | -1 |
| -0.1 | Round 14 | 🇸🇪 SWEDEN | 25 | 4♠ | ♦4 | +2 | -13 |
| -0.3 | Round 12 | 🇸🇬 SINGAPORE | 27 | 1NT | ♠5 | +2 | -1 |
| -0.4 | Round 4 | 🇧🇷 BRAZIL | 3 | 3NT | ♠J | +1 | -1 |
| -0.5 | Round 1 | 🇹🇼 CHINESE TAIPEI | 10 | 2NT | ♦9 | -1 | -1 |
| -0.5 | Round 4 | 🇧🇷 BRAZIL | 2 | 1NT | ♠10 | = | +1 |
| -0.5 | Round 4 | 🇧🇷 BRAZIL | 5 | 5♥x | ♠A | -2 | +5 |
| -0.5 | Round 7 | 🇮🇳 INDIA | 21 | 4♣ | ♥J | +2 | -12 |
| -0.6 | Round 6 | 🇩🇪 GERMANY | 7 | 3♦ | ♣A | -2 | -2 |
| -0.6 | Round 8 | 🇱🇻 LATVIA | 2 | 2♥ | ♦2 | +2 | -4 |
| -0.6 | Round 16 | 🇧🇲 BERMUDA | 25 | 2NT | ♥4 | -1 | +4 |
| -0.8 | Round 12 | 🇸🇬 SINGAPORE | 21 | 3♥ | ♠5 | -2 | -1 |
| -0.8 | Round 14 | 🇸🇪 SWEDEN | 17 | 3NT | ♠4 | = | +1 |
| -0.8 | Round 15 | 🇺🇸 USA | 6 | 3NT | ♠7 | = | -1 |
| -0.8 | Round 15 | 🇺🇸 USA | 13 | 4♥ | ♣4 | = | -3 |
| -1.0 | Round 4 | 🇧🇷 BRAZIL | 9 | 2♥ | ♦Q | -2 | -3 |
| -1.1 | Round 8 | 🇱🇻 LATVIA | 4 | 4♠ | ♥J | = | -1 |
| -1.2 | Round 4 | 🇧🇷 BRAZIL | 11 | 1NT | ♠Q | -3 | -1 |
| -1.2 | Round 11 | 🇩🇰 DENMARK | 2 | 3♦ | ♠7 | -1 | -10 |
| -1.3 | Round 11 | 🇩🇰 DENMARK | 5 | 4♠ | ♣Q | +1 | -1 |
| -1.4 | Round 7 | 🇮🇳 INDIA | 27 | 2♠ | ♥K | +1 | +0 |
| -1.5 | Round 6 | 🇩🇪 GERMANY | 6 | 5♠ | ♦3 | = | +0 |
| -1.5 | Round 8 | 🇱🇻 LATVIA | 1 | 3♥ | ♥A | = | +0 |
| -1.5 | Round 12 | 🇸🇬 SINGAPORE | 16 | 4♠x | ♠6 | -1 | -6 |
| -1.6 | Round 6 | 🇩🇪 GERMANY | 1 | 3NT | ♠4 | +1 | +0 |
| -1.8 | Round 8 | 🇱🇻 LATVIA | 5 | 3♦ | ♠7 | = | +0 |
| -1.9 | Round 1 | 🇹🇼 CHINESE TAIPEI | 6 | 4♠ | ♦A | -2 | -12 |
| -2.0 | Round 8 | 🇱🇻 LATVIA | 8 | 4♥ | ♥2 | +1 | -1 |
| -2.1 | Round 6 | 🇩🇪 GERMANY | 5 | 3NT | ♠5 | +1 | +0 |
| -2.2 | Round 1 | 🇹🇼 CHINESE TAIPEI | 11 | 2NT | ♥4 | -3 | +0 |
| -2.2 | Round 6 | 🇩🇪 GERMANY | 11 | 1NT | ♠4 | = | -6 |
| -2.2 | Round 15 | 🇺🇸 USA | 3 | 2♠ | ♥A | -2 | -11 |
| -2.3 | Round 6 | 🇩🇪 GERMANY | 4 | 5♦ | ♥Q | -1 | -1 |
| -2.4 | Round 8 | 🇱🇻 LATVIA | 9 | 3NT | ♥2 | -1 | -5 |
| -2.4 | Round 12 | 🇸🇬 SINGAPORE | 28 | 3NT | ♥5 | +1 | +0 |
| -2.4 | Round 14 | 🇸🇪 SWEDEN | 24 | 3NT | ♥4 | +1 | -1 |
| -2.5 | Round 1 | 🇹🇼 CHINESE TAIPEI | 13 | 3♥ | ♠5 | +1 | -1 |
| -2.6 | Round 4 | 🇧🇷 BRAZIL | 10 | 4♥ | ♠9 | = | +0 |
| -2.7 | Round 15 | 🇺🇸 USA | 5 | 3NT | ♦6 | -1 | -5 |
| -2.9 | Round 15 | 🇺🇸 USA | 12 | 5♥ | ♠K | +1 | -2 |
| -3.1 | Round 7 | 🇮🇳 INDIA | 24 | 6♠ | ♥8 | +1 | -11 |
| -3.6 | Round 12 | 🇸🇬 SINGAPORE | 26 | 3NT | ♠7 | = | +1 |
| -3.6 | Round 14 | 🇸🇪 SWEDEN | 23 | 1NT | ♣K | +1 | +0 |
| -3.8 | Round 11 | 🇩🇰 DENMARK | 1 | 3♦ | ♦5 | +1 | -6 |
| -3.9 | Round 12 | 🇸🇬 SINGAPORE | 17 | 3NT | ♥5 | -1 | -10 |
| -4.5 | Round 6 | 🇩🇪 GERMANY | 9 | 3♠ | ♠2 | = | -8 |
| -4.6 | Round 6 | 🇩🇪 GERMANY | 3 | 2♣ | ♠6 | -2 | -7 |
| -4.6 | Round 12 | 🇸🇬 SINGAPORE | 22 | 3♣ | ♠J | = | -6 |
| -4.6 | Round 14 | 🇸🇪 SWEDEN | 28 | 2♠ | ♥8 | = | -8 |
| -4.9 | Round 6 | 🇩🇪 GERMANY | 13 | 4♠ | ♠Q | = | +0 |
| -4.9 | Round 7 | 🇮🇳 INDIA | 22 | 6♠ | ♣J | +1 | +11 |
| -5.1 | Round 11 | 🇩🇰 DENMARK | 12 | 4♥ | ♦10 | -1 | -12 |
| -5.8 | Round 1 | 🇹🇼 CHINESE TAIPEI | 1 | 4♥ | ♠2 | +1 | -2 |
| -6.0 | Round 1 | 🇹🇼 CHINESE TAIPEI | 12 | 3NT | ♠5 | = | -10 |
| -6.3 | Round 16 | 🇧🇲 BERMUDA | 18 | 5♦ | ♠6 | -2 | -6 |
| -7.8 | Round 12 | 🇸🇬 SINGAPORE | 24 | 4♠ | ♠2 | -1 | -11 |
| -8.4 | Round 6 | 🇩🇪 GERMANY | 14 | 6♦ | ♥8 | -3 | -11 |
| -8.4 | Round 12 | 🇸🇬 SINGAPORE | 20 | 3NT | ♠Q | = | +0 |
| -8.6 | Round 11 | 🇩🇰 DENMARK | 6 | 4♠x | ♣4 | -3 | -9 |
| -8.7 | Round 11 | 🇩🇰 DENMARK | 13 | 7♥ | ♣A | -1 | -17 |
| -9.0 | Round 15 | 🇺🇸 USA | 10 | 1NTx | ♦10 | -2 | -9 |
| -10.5 | Round 16 | 🇧🇲 BERMUDA | 22 | 7♥ | ♠5 | -4 | -14 |
| -11.4 | Round 6 | 🇩🇪 GERMANY | 10 | 5♠x | ♥K | = | -8 |
| -12.2 | Round 11 | 🇩🇰 DENMARK | 7 | 6♥ | ♣K | -2 | -17 |