🇨🇳 CHEN Yunlong · CHINA
69rank
-38.0Butler · 160 bds
-0.24per board
±4.3swing
-0.03vs par /bd · #61/98
-0.30adjusted /bd
by round
vs par split: bidding -0.13 · play +0.09
Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted -0.30/bd
Card play — on target: opening leads 86.1% #13 of 98 · declarer play 71.0% #63 of 98 · defence 89.7% #27 of 98
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 90.0% (10) | 84.6% (26) |
| Declarer play | 66.7% (6) | 72.0% (25) |
| Defence | 90.9% (22) | 89.3% (56) |
Opening leads by suit led: ♠ 90.0% (10) · ♥ 88.9% (9) · ♦ 75.0% (8) · ♣ 88.9% (9)
vs par by strain: NT +0.76 (41) · a suit -0.31 (117)
vs par by level: part-score +0.32 (57) · game -0.05 (85) · slam -1.19 (16)
By role: declaring -0.35/bd (-2.67 vs par · 81) · defending -0.12/bd (+2.67 vs par · 79)
By vulnerability: vulnerable -0.23/bd (-0.64 vs par · 80) · not vulnerable -0.25/bd (+0.57 vs par · 80)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | W.Wang | S.Duncan – D.Kane | Closed | 16 | +9.4 | +0.59 | +0.06 |
| Round 5 | W.Wang | N.Warne – T.Bergdahl | Closed | 16 | -0.5 | -0.03 | -1.38 |
| Round 6 | W.Wang | H.Graversen – P.Clemmensen | Closed | 16 | -11.6 | -0.72 | +1.62 |
| Round 7 | W.Wang | G.Fazzardi – R.Soglia | Open | 16 | +19.2 | +1.20 | +1.19 |
| Round 8 | W.Wang | N.Gartaganis – J.Gartaganis | Open | 16 | -13.7 | -0.86 | +0.88 |
| Round 10 | W.Wang | W.Olanski – V.Vainikonis | Closed | 16 | +6.0 | +0.38 | +1.88 |
| Round 11 | W.Wang | S.De Wijs – B.Muller | Closed | 16 | -23.2 | -1.45 | -1.00 |
| Round 13 | W.Wang | J.Cassin – J.Pelletier | Closed | 16 | -6.8 | -0.42 | -2.50 |
| Round 16 | W.Wang | A.Omran – K.Nabil | Closed | 16 | +1.4 | +0.09 | +0.00 |
| Round 17 | W.Wang | H.Mcgann – T.Hanlon | Open | 16 | -18.2 | -1.14 | -1.06 |
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 |
|---|---|---|---|---|---|---|---|
| +12.6 | Round 10 | 🇱🇹 LITHUANIA | 23 | 6♠ | ♦8 | +1 | +8 |
| +11.2 | Round 3 | 🏴 SCOTLAND | 7 | 3NT | ♠K | -1 | +12 |
| +10.8 | Round 16 | 🇪🇬 EGYPT | 30 | 6♠ | ♣A | = | +12 |
| +10.2 | Round 13 | 🇬🇵 GUADELOUPE | 8 | 5♦ | ♠2 | +2 | +12 |
| +9.5 | Round 17 | 🇮🇪 IRELAND | 2 | 7♠ | ♦2 | -1 | +17 |
| +9.1 | Round 7 | 🇸🇲 SAN MARINO | 8 | 4♠ | ♥A | = | +8 |
| +8.6 | Round 8 | 🇨🇦 CANADA | 32 | 3NT | ♠7 | -1 | +11 |
| +8.6 | Round 11 | 🇳🇱 NETHERLANDS | 16 | 4♠ | ♦A | = | +7 |
| +8.1 | Round 6 | 🇩🇰 DENMARK | 22 | 6♣ | ♥10 | -1 | +12 |
| +7.8 | Round 5 | 🇸🇪 SWEDEN | 5 | 3NT | ♠7 | = | +7 |
| +7.2 | Round 5 | 🇸🇪 SWEDEN | 4 | 2♠ | ♥A | -2 | +7 |
| +7.2 | Round 8 | 🇨🇦 CANADA | 21 | 1NT | ♦5 | +2 | +10 |
| +7.1 | Round 16 | 🇪🇬 EGYPT | 28 | 3♥ | ♠A | = | +7 |
| +7.0 | Round 16 | 🇪🇬 EGYPT | 26 | 3NT | ♦8 | = | +0 |
| +6.6 | Round 7 | 🇸🇲 SAN MARINO | 9 | 5♠ | ♣4 | -2 | +2 |
| +6.0 | Round 13 | 🇬🇵 GUADELOUPE | 2 | 5♥x | ♠A | -4 | +4 |
| +5.4 | Round 7 | 🇸🇲 SAN MARINO | 15 | 3NT | ♠4 | -1 | +10 |
| +5.3 | Round 10 | 🇱🇹 LITHUANIA | 32 | 3NT | ♣Q | = | +7 |
| +5.0 | Round 5 | 🇸🇪 SWEDEN | 9 | 4♠ | ♣10 | -3 | +11 |
| +4.6 | Round 3 | 🏴 SCOTLAND | 10 | 2♠ | ♣4 | = | +6 |
| +4.5 | Round 7 | 🇸🇲 SAN MARINO | 14 | 1♥ | ♦A | +1 | +6 |
| +4.4 | Round 3 | 🏴 SCOTLAND | 1 | 5♣x | ♣7 | -2 | +5 |
| +3.8 | Round 7 | 🇸🇲 SAN MARINO | 2 | 2♣x | ♥Q | = | +2 |
| +3.4 | Round 6 | 🇩🇰 DENMARK | 24 | 4♠ | ♣Q | -2 | +14 |
| +2.9 | Round 6 | 🇩🇰 DENMARK | 21 | 1♠ | ♣A | +2 | +2 |
| +2.9 | Round 7 | 🇸🇲 SAN MARINO | 12 | 4♠ | ♥8 | +1 | +11 |
| +2.7 | Round 3 | 🏴 SCOTLAND | 6 | 2NT | ♠4 | +2 | +6 |
| +2.7 | Round 11 | 🇳🇱 NETHERLANDS | 1 | 1NT | ♦3 | = | -8 |
| +2.6 | Round 13 | 🇬🇵 GUADELOUPE | 4 | 3♠ | ♥9 | -1 | +5 |
| +2.6 | Round 17 | 🇮🇪 IRELAND | 6 | 1NT | ♦K | +1 | +6 |
| +2.4 | Round 10 | 🇱🇹 LITHUANIA | 21 | 4♠ | ♥K | = | -1 |
| +2.4 | Round 11 | 🇳🇱 NETHERLANDS | 15 | 5♣ | ♥A | +1 | +0 |
| +1.9 | Round 6 | 🇩🇰 DENMARK | 25 | 4♥ | ♦6 | +1 | +0 |
| +1.9 | Round 11 | 🇳🇱 NETHERLANDS | 5 | 3♦ | ♣2 | = | -1 |
| +1.8 | Round 6 | 🇩🇰 DENMARK | 18 | 1♠ | ♥10 | +1 | +0 |
| +1.7 | Round 3 | 🏴 SCOTLAND | 16 | 6♥ | ♦7 | = | +0 |
| +1.7 | Round 6 | 🇩🇰 DENMARK | 17 | 4♥ | ♣3 | -1 | +10 |
| +1.7 | Round 7 | 🇸🇲 SAN MARINO | 7 | 2♠ | ♥K | -1 | -1 |
| +1.5 | Round 17 | 🇮🇪 IRELAND | 15 | 1NT | ♥2 | +1 | -10 |
| +1.4 | Round 16 | 🇪🇬 EGYPT | 18 | 4♠ | ♣K | -1 | +4 |
| +1.2 | Round 10 | 🇱🇹 LITHUANIA | 18 | 3♠ | ♥2 | -1 | -2 |
| +1.2 | Round 16 | 🇪🇬 EGYPT | 32 | 4♥ | ♦5 | = | +0 |
| +1.1 | Round 8 | 🇨🇦 CANADA | 20 | 3NT | ♦7 | +1 | +1 |
| +1.1 | Round 17 | 🇮🇪 IRELAND | 10 | 5♦ | ♥7 | = | -1 |
| +1.0 | Round 3 | 🏴 SCOTLAND | 8 | 4♣ | ♠Q | = | +7 |
| +1.0 | Round 5 | 🇸🇪 SWEDEN | 11 | 4♠ | ♥5 | +1 | +1 |
| +1.0 | Round 6 | 🇩🇰 DENMARK | 20 | 3♠ | ♦A | -1 | -1 |
| +1.0 | Round 13 | 🇬🇵 GUADELOUPE | 15 | 4♠ | ♥Q | +2 | -13 |
| +1.0 | Round 17 | 🇮🇪 IRELAND | 1 | 3NT | ♦9 | +2 | +0 |
| +0.9 | Round 8 | 🇨🇦 CANADA | 19 | 2♠ | ♦2 | +1 | +0 |
| +0.9 | Round 8 | 🇨🇦 CANADA | 23 | 3♠ | ♣7 | -1 | -1 |
| +0.9 | Round 13 | 🇬🇵 GUADELOUPE | 3 | 2♣ | ♥A | = | +5 |
| +0.8 | Round 6 | 🇩🇰 DENMARK | 31 | 6♥ | ♠3 | = | -7 |
| +0.8 | Round 13 | 🇬🇵 GUADELOUPE | 16 | 1♠ | ♣K | +2 | +0 |
| +0.7 | Round 8 | 🇨🇦 CANADA | 30 | 3NT | ♠4 | -1 | +5 |
| +0.7 | Round 16 | 🇪🇬 EGYPT | 27 | 2♥ | ♣A | -1 | +8 |
| +0.6 | Round 5 | 🇸🇪 SWEDEN | 14 | 5♣ | ♦Q | = | -11 |
| +0.6 | Round 17 | 🇮🇪 IRELAND | 5 | 2♠ | ♥K | = | -1 |
| +0.5 | Round 3 | 🏴 SCOTLAND | 12 | 1NT | ♥5 | +1 | -7 |
| +0.5 | Round 7 | 🇸🇲 SAN MARINO | 3 | 3NT | ♣3 | +2 | +0 |
| +0.5 | Round 10 | 🇱🇹 LITHUANIA | 22 | 3NT | ♣J | +3 | +13 |
| +0.5 | Round 11 | 🇳🇱 NETHERLANDS | 13 | 2♥ | ♥7 | -2 | -9 |
| +0.3 | Round 7 | 🇸🇲 SAN MARINO | 5 | 6♠ | ♣10 | = | +0 |
| +0.3 | Round 13 | 🇬🇵 GUADELOUPE | 9 | 2♥ | ♦8 | +1 | +1 |
| +0.3 | Round 16 | 🇪🇬 EGYPT | 24 | 1NT | ♥6 | = | -8 |
| +0.3 | Round 16 | 🇪🇬 EGYPT | 25 | 3NT | ♦8 | = | -1 |
| +0.3 | Round 17 | 🇮🇪 IRELAND | 16 | 2♥ | ♠A | -1 | +0 |
| +0.2 | Round 3 | 🏴 SCOTLAND | 14 | 3♠ | ♣A | -1 | +6 |
| +0.2 | Round 7 | 🇸🇲 SAN MARINO | 10 | 4♠ | ♥5 | = | +1 |
| +0.2 | Round 10 | 🇱🇹 LITHUANIA | 20 | 3NT | ♠Q | +2 | +0 |
| +0.2 | Round 10 | 🇱🇹 LITHUANIA | 25 | 3NT | ♠2 | = | +0 |
| +0.2 | Round 16 | 🇪🇬 EGYPT | 20 | 5♦ | ♠A | -1 | +6 |
| +0.1 | Round 3 | 🏴 SCOTLAND | 9 | 4♥ | ♦A | +1 | +0 |
| +0.1 | Round 5 | 🇸🇪 SWEDEN | 7 | 3NT | ♦7 | +3 | -13 |
| +0.1 | Round 5 | 🇸🇪 SWEDEN | 16 | 1NT | ♥7 | +1 | +7 |
| +0.1 | Round 8 | 🇨🇦 CANADA | 22 | 4♥ | ♦9 | +1 | -1 |
| +0.1 | Round 10 | 🇱🇹 LITHUANIA | 31 | 4♦ | ♥A | +1 | +6 |
| +0.1 | Round 13 | 🇬🇵 GUADELOUPE | 7 | 4♠ | ♥10 | +1 | +0 |
| +0.1 | Round 13 | 🇬🇵 GUADELOUPE | 11 | 4♠ | ♥K | +1 | +0 |
| +0.1 | Round 13 | 🇬🇵 GUADELOUPE | 13 | 4♠ | ♦2 | +2 | -12 |
| -0.0 | Round 5 | 🇸🇪 SWEDEN | 2 | 4♥ | ♣Q | +1 | +0 |
| +0.0 | Round 11 | 🇳🇱 NETHERLANDS | 2 | 4♠ | ♣10 | +1 | +0 |
| +0.0 | Round 17 | 🇮🇪 IRELAND | 8 | 5♠ | ♥6 | = | +0 |
| -0.1 | Round 5 | 🇸🇪 SWEDEN | 13 | 3NT | ♥4 | +2 | +0 |
| -0.1 | Round 10 | 🇱🇹 LITHUANIA | 24 | 3♣ | ♠9 | = | +1 |
| -0.2 | Round 11 | 🇳🇱 NETHERLANDS | 10 | 2NT | ♥Q | -1 | +5 |
| -0.2 | Round 17 | 🇮🇪 IRELAND | 11 | 6♦ | ♥K | -2 | +0 |
| -0.3 | Round 3 | 🏴 SCOTLAND | 5 | 4♠ | ♥10 | = | -8 |
| -0.3 | Round 5 | 🇸🇪 SWEDEN | 12 | 2♥ | ♠7 | +2 | -6 |
| -0.3 | Round 6 | 🇩🇰 DENMARK | 27 | 3NT | ♦10 | -1 | +3 |
| -0.4 | Round 3 | 🏴 SCOTLAND | 2 | 2♥ | ♦4 | -1 | -5 |
| -0.4 | Round 10 | 🇱🇹 LITHUANIA | 28 | 3♥ | ♣A | -1 | -2 |
| -0.5 | Round 5 | 🇸🇪 SWEDEN | 3 | 3NT | ♠7 | +1 | +0 |
| -0.5 | Round 7 | 🇸🇲 SAN MARINO | 4 | Pass | +3 | ||
| -0.5 | Round 8 | 🇨🇦 CANADA | 31 | 2♠ | ♣K | -3 | -1 |
| -0.6 | Round 5 | 🇸🇪 SWEDEN | 8 | 1♠ | ♦9 | +1 | +0 |
| -0.6 | Round 6 | 🇩🇰 DENMARK | 30 | 4♥ | ♣2 | +1 | +0 |
| -0.8 | Round 6 | 🇩🇰 DENMARK | 32 | 3NT | ♠9 | +4 | -2 |
| -0.8 | Round 10 | 🇱🇹 LITHUANIA | 29 | 2♠ | ♥9 | +3 | +7 |
| -0.8 | Round 13 | 🇬🇵 GUADELOUPE | 10 | 3NT | ♣K | = | +1 |
| -0.9 | Round 7 | 🇸🇲 SAN MARINO | 16 | 7NT | ♠5 | = | +0 |
| -0.9 | Round 11 | 🇳🇱 NETHERLANDS | 12 | 4♥ | ♦3 | = | -1 |
| -1.0 | Round 3 | 🏴 SCOTLAND | 11 | Pass | -3 | ||
| -1.1 | Round 6 | 🇩🇰 DENMARK | 23 | 3♦ | ♥K | +1 | +10 |
| -1.1 | Round 16 | 🇪🇬 EGYPT | 31 | 3♣ | ♣6 | +1 | +0 |
| -1.2 | Round 10 | 🇱🇹 LITHUANIA | 19 | 4♠ | ♠10 | +2 | +13 |
| -1.3 | Round 3 | 🏴 SCOTLAND | 15 | 5♦x | ♥A | -2 | +0 |
| -1.3 | Round 7 | 🇸🇲 SAN MARINO | 1 | 3NT | ♥5 | = | +1 |
| -1.3 | Round 11 | 🇳🇱 NETHERLANDS | 7 | 4♥ | ♣4 | = | +0 |
| -1.4 | Round 7 | 🇸🇲 SAN MARINO | 6 | 4♥ | ♣7 | = | +0 |
| -1.4 | Round 8 | 🇨🇦 CANADA | 17 | 4♥ | ♦Q | +1 | +0 |
| -1.5 | Round 10 | 🇱🇹 LITHUANIA | 30 | 1NT | ♦2 | -2 | -1 |
| -1.5 | Round 11 | 🇳🇱 NETHERLANDS | 14 | 3♥ | ♠K | -3 | +6 |
| -1.7 | Round 17 | 🇮🇪 IRELAND | 12 | 3NT | ♦5 | = | +1 |
| -1.8 | Round 5 | 🇸🇪 SWEDEN | 6 | 4♠ | ♦J | +2 | -1 |
| -2.0 | Round 8 | 🇨🇦 CANADA | 28 | 4♠ | ♥4 | +1 | -11 |
| -2.0 | Round 17 | 🇮🇪 IRELAND | 3 | 2NT | ♥J | +1 | +10 |
| -2.3 | Round 10 | 🇱🇹 LITHUANIA | 17 | 5♣ | ♣A | = | +0 |
| -2.3 | Round 17 | 🇮🇪 IRELAND | 14 | 2♠ | ♦6 | = | +8 |
| -2.4 | Round 16 | 🇪🇬 EGYPT | 17 | 3NT | ♣J | -1 | -4 |
| -2.9 | Round 7 | 🇸🇲 SAN MARINO | 13 | 6♦ | ♠4 | +1 | -13 |
| -3.3 | Round 8 | 🇨🇦 CANADA | 27 | 4♥ | ♦9 | +1 | +10 |
| -3.3 | Round 16 | 🇪🇬 EGYPT | 19 | 2♥ | ♠A | -2 | +0 |
| -3.7 | Round 8 | 🇨🇦 CANADA | 18 | 5♥ | ♠6 | +1 | +3 |
| -3.7 | Round 10 | 🇱🇹 LITHUANIA | 27 | 3♠ | ♥J | -2 | -9 |
| -3.9 | Round 8 | 🇨🇦 CANADA | 24 | 3NT | ♠9 | +2 | -1 |
| -4.0 | Round 8 | 🇨🇦 CANADA | 26 | 4♥ | ♦Q | = | +1 |
| -4.1 | Round 13 | 🇬🇵 GUADELOUPE | 12 | 2♠ | ♦2 | +1 | -1 |
| -4.3 | Round 3 | 🏴 SCOTLAND | 4 | 2♥ | ♠J | -1 | -6 |
| -4.5 | Round 5 | 🇸🇪 SWEDEN | 15 | 7♥ | ♠K | = | +0 |
| -4.6 | Round 13 | 🇬🇵 GUADELOUPE | 14 | 5♥x | ♠7 | -1 | -9 |
| -4.7 | Round 3 | 🏴 SCOTLAND | 3 | 4♥ | ♣10 | -1 | -6 |
| -4.7 | Round 6 | 🇩🇰 DENMARK | 28 | 3♣ | ♦A | +1 | -6 |
| -4.7 | Round 16 | 🇪🇬 EGYPT | 22 | 4♥ | ♣2 | -2 | -6 |
| -4.8 | Round 6 | 🇩🇰 DENMARK | 19 | 5♦ | ♠K | +1 | -11 |
| -5.0 | Round 3 | 🏴 SCOTLAND | 13 | 4♠ | ♦K | -1 | -6 |
| -5.0 | Round 17 | 🇮🇪 IRELAND | 7 | 4♠ | ♦9 | +2 | -13 |
| -5.1 | Round 5 | 🇸🇪 SWEDEN | 1 | 3NTx | ♦8 | -1 | -11 |
| -5.1 | Round 11 | 🇳🇱 NETHERLANDS | 9 | 1♠ | ♠8 | +1 | -6 |
| -5.1 | Round 11 | 🇳🇱 NETHERLANDS | 11 | 6♣x | ♣J | -1 | +0 |
| -5.1 | Round 16 | 🇪🇬 EGYPT | 23 | 3♠ | ♥9 | -3 | -5 |
| -5.3 | Round 16 | 🇪🇬 EGYPT | 21 | 4♥ | ♣7 | -2 | -8 |
| -5.5 | Round 11 | 🇳🇱 NETHERLANDS | 8 | 2♠ | ♦4 | -1 | -10 |
| -5.7 | Round 11 | 🇳🇱 NETHERLANDS | 3 | 5♥x | ♠8 | -2 | +5 |
| -5.7 | Round 13 | 🇬🇵 GUADELOUPE | 1 | 6♦ | ♥J | -1 | -16 |
| -5.7 | Round 16 | 🇪🇬 EGYPT | 29 | 3♥ | ♠10 | -3 | -5 |
| -6.0 | Round 11 | 🇳🇱 NETHERLANDS | 4 | 4♠ | ♠5 | = | +0 |
| -6.1 | Round 13 | 🇬🇵 GUADELOUPE | 6 | 3NT | ♠4 | = | +0 |
| -6.5 | Round 10 | 🇱🇹 LITHUANIA | 26 | 2♠ | ♥J | +2 | -10 |
| -7.1 | Round 8 | 🇨🇦 CANADA | 25 | 3NT | ♦4 | = | -6 |
| -7.3 | Round 8 | 🇨🇦 CANADA | 29 | 5♦x | ♣Q | = | -6 |
| -7.3 | Round 17 | 🇮🇪 IRELAND | 4 | 6♠ | ♦J | -1 | -17 |
| -7.6 | Round 13 | 🇬🇵 GUADELOUPE | 5 | 6♦ | ♣3 | -2 | -17 |
| -7.7 | Round 17 | 🇮🇪 IRELAND | 9 | 4♠ | ♥10 | = | -8 |
| -8.0 | Round 11 | 🇳🇱 NETHERLANDS | 6 | 1NTx | ♦K | +3 | -4 |
| -8.6 | Round 17 | 🇮🇪 IRELAND | 13 | 3NT | ♠Q | -3 | -9 |
| -8.8 | Round 7 | 🇸🇲 SAN MARINO | 11 | 5♥ | ♠5 | = | -11 |
| -9.4 | Round 5 | 🇸🇪 SWEDEN | 10 | 4♥ | ♠A | -1 | -13 |
| -9.9 | Round 6 | 🇩🇰 DENMARK | 26 | 4♥ | ♠Q | = | +0 |
| -11.0 | Round 6 | 🇩🇰 DENMARK | 29 | 6♣ | ♣5 | = | +2 |