🇭🇰 CAI Yutong · HONG KONG CHINA
19rank
+70.8Butler · 96 bds
+0.74per board
±4.6swing
+0.71vs par /bd · #21/105
+0.71adjusted /bd
by round
vs par split: bidding +0.18 · play +0.53
Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted +0.71/bd
Card play — on target: opening leads 79.2% #68 of 105 · declarer play 76.0% #28 of 105 · defence 75.5% #85 of 105
Bidding activity — not a pass: 42.5% #61 of 105 (110/259)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 60.0% (5) | 84.2% (19) |
| Declarer play | 62.5% (8) | 82.4% (17) |
| Defence | 90.0% (10) | 71.8% (39) |
Opening leads by suit led: ♠ 60.0% (5) · ♥ 71.4% (7) · ♦ 100.0% (8) · ♣ 75.0% (4)
vs par by strain: NT +1.38 (24) · a suit +0.49 (72)
vs par by level: part-score +0.51 (41) · game +0.61 (51) · slam +4.00 (4)
By role: declaring +0.59/bd (-1.04 vs par · 47) · defending +0.88/bd (+2.39 vs par · 49)
By vulnerability: vulnerable +0.35/bd (+0.88 vs par · 48) · not vulnerable +1.13/bd (+0.54 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | O.Deng | S.Litvak – M.Briedis | Open | 8 | +12.8 | +1.60 | -0.38 |
| Round 3 | O.Deng | W.Gu – W.Liu | Open | 8 | +1.9 | +0.24 | -0.12 |
| Round 4 | O.Deng | S.Vangdal – S.Draege | Closed | 8 | +2.8 | +0.35 | +0.62 |
| Round 6 | O.Deng | A.Blicharz – W.Marshall | Open | 8 | -5.5 | -0.69 | -1.50 |
| Round 8 | O.Deng | M.De Wiljes – A.Wlad | Open | 8 | +23.0 | +2.88 | -1.00 |
| Round 9 | O.Deng | A.Chen – J.Xiao | Open | 8 | +0.5 | +0.06 | +1.38 |
| Round 11 | O.Deng | K.Roeangriwong – P.Aramruang | Closed | 8 | +5.4 | +0.68 | +1.50 |
| Round 12 | O.Deng | C.Wang – Y.Peng | Closed | 8 | -4.6 | -0.57 | +1.12 |
| Round 13 | O.Deng | S.Lahav – A.Zaidenberg Gatt | Open | 8 | +15.3 | +1.91 | +0.62 |
| Round 14 | O.Deng | K.Visser – T.Pothof | Closed | 8 | +28.9 | +3.61 | +8.38 |
| Round 15 | O.Deng | C.Zeeberg – T.Holm Faxoee | Open | 8 | -12.2 | -1.52 | -1.25 |
| Round 16 | O.Deng | L.Crepin – E.Lyoen | Closed | 8 | +2.5 | +0.31 | -0.88 |
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 |
|---|---|---|---|---|---|---|---|
| +13.2 | Round 6 | 🏴 ENGLAND | 14 | 7♥ | ♣A | -1 | +14 |
| +12.4 | Round 14 | 🇳🇱 NETHERLANDS | 22 | 6NT | ♠T | = | +13 |
| +9.5 | Round 9 | 🇺🇸 USA1 | 2 | 3♣x | ♣2 | = | +8 |
| +9.2 | Round 8 | 🇩🇪 GERMANY | 28 | 6♠ | ♣9 | = | +0 |
| +8.8 | Round 14 | 🇳🇱 NETHERLANDS | 19 | 4♠ | ♥A | -1 | +11 |
| +8.6 | Round 4 | 🇳🇴 NORWAY | 32 | 4♥ | ♦3 | +2 | +14 |
| +7.8 | Round 15 | 🇩🇰 DENMARK | 30 | 4♠ | ♥6 | -2 | +11 |
| +7.2 | Round 1 | 🇱🇻 LATVIA | 1 | 5♣ | ♠8 | -2 | +11 |
| +6.5 | Round 14 | 🇳🇱 NETHERLANDS | 24 | 4♥ | ♣K | -1 | +10 |
| +6.2 | Round 11 | 🇹🇭 THAILAND | 21 | 3NT | ♠3 | = | +7 |
| +6.1 | Round 8 | 🇩🇪 GERMANY | 32 | 5♠x | ♣A | -4 | -7 |
| +5.6 | Round 11 | 🇹🇭 THAILAND | 18 | 3NT | ♥K | -3 | +14 |
| +4.6 | Round 6 | 🏴 ENGLAND | 13 | 4♥ | ♣4 | +2 | +1 |
| +4.6 | Round 13 | 🇮🇱 ISRAEL | 15 | 4♠ | ♥5 | -1 | +6 |
| +4.5 | Round 16 | 🇫🇷 FRANCE | 6 | 3♥ | ♠K | +1 | +6 |
| +4.3 | Round 15 | 🇩🇰 DENMARK | 26 | 3♠ | ♦Q | = | +1 |
| +4.1 | Round 13 | 🇮🇱 ISRAEL | 10 | 3♠ | ♣A | -1 | +11 |
| +4.1 | Round 13 | 🇮🇱 ISRAEL | 11 | 4♠ | ♣4 | +1 | +4 |
| +3.9 | Round 16 | 🇫🇷 FRANCE | 4 | 2♠ | ♦K | -1 | +6 |
| +3.8 | Round 8 | 🇩🇪 GERMANY | 25 | 4♥ | ♦6 | +1 | +4 |
| +3.7 | Round 1 | 🇱🇻 LATVIA | 2 | 4♠ | ♦Q | -1 | +6 |
| +3.6 | Round 3 | 🇨🇦 CANADA | 23 | 5♣ | ♥A | -5 | +4 |
| +3.6 | Round 8 | 🇩🇪 GERMANY | 27 | 2♦ | ♥Q | -1 | +10 |
| +3.6 | Round 14 | 🇳🇱 NETHERLANDS | 17 | 3NT | ♠4 | -1 | +10 |
| +3.5 | Round 16 | 🇫🇷 FRANCE | 7 | 4♥ | ♣A | -1 | +1 |
| +3.2 | Round 13 | 🇮🇱 ISRAEL | 14 | 4♥ | ♦A | = | -1 |
| +3.1 | Round 1 | 🇱🇻 LATVIA | 6 | 1NT | ♥3 | -1 | +4 |
| +3.1 | Round 8 | 🇩🇪 GERMANY | 31 | 4♠ | ♥9 | = | +0 |
| +3.1 | Round 9 | 🇺🇸 USA1 | 5 | 2NT | ♦3 | = | +0 |
| +3.0 | Round 11 | 🇹🇭 THAILAND | 22 | 4♠ | ♣A | +2 | -1 |
| +2.9 | Round 3 | 🇨🇦 CANADA | 24 | 4♠ | ♦4 | -1 | +5 |
| +2.9 | Round 4 | 🇳🇴 NORWAY | 31 | 1♠ | ♣2 | +1 | +0 |
| +2.8 | Round 3 | 🇨🇦 CANADA | 19 | 2♠ | ♣4 | +1 | +1 |
| +2.5 | Round 9 | 🇺🇸 USA1 | 3 | 5♣ | ♥8 | -2 | +6 |
| +2.5 | Round 15 | 🇩🇰 DENMARK | 27 | 1♥ | ♦J | +3 | +7 |
| +2.4 | Round 16 | 🇫🇷 FRANCE | 3 | 3♣ | ♥2 | -1 | +4 |
| +2.3 | Round 9 | 🇺🇸 USA1 | 1 | 4♠ | ♥4 | -1 | +10 |
| +2.2 | Round 1 | 🇱🇻 LATVIA | 3 | 3♠ | ♦A | = | +0 |
| +2.2 | Round 12 | 🇹🇼 CHINESE TAIPEI | 30 | 4♦ | ♠2 | -3 | +7 |
| +2.1 | Round 6 | 🏴 ENGLAND | 11 | 1NT | ♠2 | +1 | +0 |
| +2.1 | Round 11 | 🇹🇭 THAILAND | 20 | 1NT | ♠3 | +2 | +1 |
| +1.8 | Round 12 | 🇹🇼 CHINESE TAIPEI | 32 | 3NT | ♠4 | = | +2 |
| +1.4 | Round 15 | 🇩🇰 DENMARK | 28 | 4♠ | ♣Q | = | +6 |
| +1.1 | Round 6 | 🏴 ENGLAND | 12 | 1NT | ♥6 | +1 | +5 |
| +1.0 | Round 4 | 🇳🇴 NORWAY | 26 | 2NT | ♠A | = | +11 |
| +0.9 | Round 8 | 🇩🇪 GERMANY | 30 | 4♠ | ♥2 | +1 | +0 |
| +0.9 | Round 14 | 🇳🇱 NETHERLANDS | 20 | 4♠ | ♦Q | -1 | +11 |
| +0.8 | Round 4 | 🇳🇴 NORWAY | 27 | 3♥ | ♦Q | +1 | -6 |
| +0.7 | Round 3 | 🇨🇦 CANADA | 21 | 2NT | ♣6 | +1 | -1 |
| +0.7 | Round 13 | 🇮🇱 ISRAEL | 12 | 3NT | ♣6 | +2 | +0 |
| +0.5 | Round 12 | 🇹🇼 CHINESE TAIPEI | 26 | 4♠ | ♣K | = | +0 |
| +0.5 | Round 14 | 🇳🇱 NETHERLANDS | 21 | 3NT | ♠4 | = | -1 |
| +0.3 | Round 1 | 🇱🇻 LATVIA | 8 | 3♣ | ♥5 | -2 | -8 |
| +0.3 | Round 13 | 🇮🇱 ISRAEL | 16 | 3♠ | ♦2 | +2 | -9 |
| +0.2 | Round 16 | 🇫🇷 FRANCE | 8 | 1NT | ♣4 | = | -1 |
| +0.1 | Round 1 | 🇱🇻 LATVIA | 7 | 4♠ | ♦A | = | +0 |
| +0.1 | Round 13 | 🇮🇱 ISRAEL | 13 | 4♠ | ♣9 | = | -1 |
| -0.0 | Round 9 | 🇺🇸 USA1 | 4 | 4♥ | ♦Q | -1 | +6 |
| -0.2 | Round 12 | 🇹🇼 CHINESE TAIPEI | 28 | 3♠ | ♣A | +1 | +1 |
| -0.5 | Round 1 | 🇱🇻 LATVIA | 4 | 3♣ | ♠A | -1 | -1 |
| -0.5 | Round 3 | 🇨🇦 CANADA | 22 | 3NT | ♥4 | = | +0 |
| -0.5 | Round 11 | 🇹🇭 THAILAND | 19 | 3NT | ♦5 | = | +0 |
| -0.7 | Round 11 | 🇹🇭 THAILAND | 17 | 1♥ | ♦K | +1 | +1 |
| -0.9 | Round 8 | 🇩🇪 GERMANY | 26 | 2NT | ♥9 | -1 | -5 |
| -1.0 | Round 4 | 🇳🇴 NORWAY | 30 | 2♠ | ♣7 | +1 | -1 |
| -1.1 | Round 9 | 🇺🇸 USA1 | 6 | 4♠ | ♣Q | -1 | -6 |
| -1.2 | Round 3 | 🇨🇦 CANADA | 20 | 3NT | ♦5 | +1 | -1 |
| -1.5 | Round 12 | 🇹🇼 CHINESE TAIPEI | 27 | 3♠ | ♥Q | = | +7 |
| -1.5 | Round 14 | 🇳🇱 NETHERLANDS | 18 | 2♥ | ♥7 | -1 | +3 |
| -1.6 | Round 4 | 🇳🇴 NORWAY | 28 | 4NT | ♦J | = | -14 |
| -1.8 | Round 12 | 🇹🇼 CHINESE TAIPEI | 31 | 4♠ | ♦4 | +2 | -11 |
| -1.8 | Round 13 | 🇮🇱 ISRAEL | 9 | 2♦ | ♣A | = | -5 |
| -2.1 | Round 4 | 🇳🇴 NORWAY | 29 | 5♦ | ♥A | = | +2 |
| -2.1 | Round 16 | 🇫🇷 FRANCE | 2 | 2♠ | ♣A | -1 | -1 |
| -2.3 | Round 14 | 🇳🇱 NETHERLANDS | 23 | 3♦ | ♠A | +1 | +10 |
| -2.5 | Round 12 | 🇹🇼 CHINESE TAIPEI | 29 | 3♦ | ♠6 | -2 | -3 |
| -2.5 | Round 16 | 🇫🇷 FRANCE | 1 | 4♠ | ♥Q | +2 | -11 |
| -2.6 | Round 3 | 🇨🇦 CANADA | 17 | 4♥ | ♦J | -1 | -5 |
| -2.8 | Round 8 | 🇩🇪 GERMANY | 29 | 2♥ | ♠4 | +3 | -10 |
| -3.1 | Round 12 | 🇹🇼 CHINESE TAIPEI | 25 | 2NT | ♠2 | -2 | +6 |
| -3.3 | Round 1 | 🇱🇻 LATVIA | 5 | 4♠ | ♥T | +1 | -15 |
| -3.6 | Round 15 | 🇩🇰 DENMARK | 32 | 3♠ | ♥Q | -1 | -6 |
| -3.8 | Round 3 | 🇨🇦 CANADA | 18 | 3NT | ♠3 | -5 | -4 |
| -4.5 | Round 9 | 🇺🇸 USA1 | 7 | 2♦ | ♥7 | +2 | -1 |
| -4.8 | Round 6 | 🏴 ENGLAND | 10 | 3NT | ♠J | +2 | -2 |
| -4.8 | Round 11 | 🇹🇭 THAILAND | 24 | 5♦ | ♠A | -1 | -10 |
| -5.1 | Round 6 | 🏴 ENGLAND | 16 | 2♥ | ♣J | +2 | -7 |
| -5.5 | Round 11 | 🇹🇭 THAILAND | 23 | 4♠ | ♣7 | = | +0 |
| -5.8 | Round 4 | 🇳🇴 NORWAY | 25 | 4♠ | ♣3 | +1 | -1 |
| -6.1 | Round 15 | 🇩🇰 DENMARK | 25 | 5♦ | ♠6 | -1 | -6 |
| -7.4 | Round 16 | 🇫🇷 FRANCE | 5 | 6NT | ♣K | -2 | -11 |
| -7.7 | Round 15 | 🇩🇰 DENMARK | 31 | 4♠ | ♥A | = | -13 |
| -7.8 | Round 6 | 🏴 ENGLAND | 15 | 5♣ | ♥3 | -3 | -11 |
| -8.8 | Round 6 | 🏴 ENGLAND | 9 | 4♣x | ♠7 | = | -12 |
| -10.8 | Round 15 | 🇩🇰 DENMARK | 29 | 4♠ | ♦K | = | -10 |
| -11.3 | Round 9 | 🇺🇸 USA1 | 8 | 2♣x | ♠2 | -4 | -12 |