CHEN Dawei · PLATINUM
vs par split: bidding +0.66 · play +0.20
Strength of schedule: opponents averaged -0.13/bd (an easy draw) → opponent-adjusted +0.51/bd
Card play — on target: opening leads 92.6% #52 of 488 · declarer play 63.6% #427 of 488 · defence 90.7% #135 of 488
Bidding activity — not a pass: 42.9% #237 of 488 (145/338)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 95.5% (22) |
| Declarer play | 40.0% (10) | 73.9% (23) |
| Defence | 88.9% (9) | 91.1% (45) |
Opening leads by suit led: ♠ 100.0% (7) · ♥ 88.9% (9) · ♦ 85.7% (7) · ♣ 100.0% (4)
vs par by strain: NT -0.80 (25) · a suit +1.34 (86)
vs par by level: part-score +2.03 (33) · game -0.27 (64) · slam +3.21 (14)
By role: declaring +0.44/bd (-2.46 vs par · 57) · defending +0.86/bd (+4.35 vs par · 54)
By vulnerability: vulnerable +0.44/bd (+0.73 vs par · 56) · not vulnerable +0.84/bd (+0.91 vs par · 56)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Shirogane | N.Hetz – M.Poplilov | Closed | 14 | +11.7 | +0.84 | -1.71 |
| Round 2 | M.Shirogane | M.Tylvad – D.Tylvad | Open | 14 | -10.1 | -0.72 | +0.36 |
| Round 3 | M.Shirogane | N.Sandqvist – N.Shashou | Open | 14 | +24.1 | +1.72 | +1.57 |
| Round 4 | M.Shirogane | V.Di Bacco – T.Gotard | Open | 14 | +4.5 | +0.32 | +0.07 |
| Round 5 | M.Shirogane | T.Bessis – I.Baroni | Closed | 14 | +3.4 | +0.24 | +1.64 |
| Round 6 | M.Shirogane | M.Andonov – M.Lafchieva | Closed | 14 | +18.2 | +1.30 | +2.64 |
| Round 7 | M.Shirogane | J.Kalita – C.Baldysz | Open | 14 | -18.9 | -1.35 | -0.71 |
| Round 8 | M.Shirogane | S.Rubenstein – C.Parker | Closed | 14 | +38.5 | +2.75 | +2.71 |
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 |
|---|---|---|---|---|---|---|---|
| +10.4 | Round 6 | BULGARIA MIXED | 26 | 3NT | ♥3 | -1 | +12 |
| +10.0 | Round 3 | SUSHI BELT | 4 | 6♣ | ♦4 | = | -13 |
| +9.8 | Round 7 | LEIBOWITZ | 3 | 5♦x | ♣J | = | +9 |
| +9.4 | Round 6 | BULGARIA MIXED | 27 | 6♥ | ♦6 | -2 | +11 |
| +9.3 | Round 2 | PLAN B BRIDGE | 28 | 6♥ | ♦K | -2 | +11 |
| +8.8 | Round 8 | PARKER | 28 | 5♣ | ♠A | -2 | +13 |
| +8.7 | Round 6 | BULGARIA MIXED | 20 | 3NT | ♥8 | = | +10 |
| +8.4 | Round 4 | BV WALDSOLMS | 26 | 4♠ | ♦A | = | +3 |
| +8.2 | Round 4 | BV WALDSOLMS | 17 | 2♠ | ♣J | = | +11 |
| +7.8 | Round 5 | MINITER | 8 | 6♣ | ♥T | = | -2 |
| +7.4 | Round 6 | BULGARIA MIXED | 24 | 4♠ | ♥A | -1 | +8 |
| +7.3 | Round 5 | MINITER | 4 | 4♥x | ♦4 | -1 | +13 |
| +6.6 | Round 1 | HETZ | 8 | 4♥ | ♣A | = | +8 |
| +6.2 | Round 8 | PARKER | 15 | 6♠ | ♣8 | = | +0 |
| +6.1 | Round 3 | SUSHI BELT | 6 | 3♥ | ♠6 | -3 | +11 |
| +6.1 | Round 3 | SUSHI BELT | 10 | 3NT | ♦Q | -1 | +6 |
| +6.0 | Round 8 | PARKER | 19 | 4♠ | ♥A | = | +0 |
| +5.8 | Round 8 | PARKER | 22 | 3♠ | ♥K | +3 | +13 |
| +5.6 | Round 1 | HETZ | 5 | 2♦x | ♥7 | -2 | +4 |
| +5.1 | Round 8 | PARKER | 24 | 3NT | ♣4 | = | +6 |
| +5.0 | Round 4 | BV WALDSOLMS | 28 | 4♠ | ♣A | -2 | +7 |
| +4.5 | Round 5 | MINITER | 6 | 6♦ | ♥A | -1 | +10 |
| +4.4 | Round 8 | PARKER | 23 | 4♠ | ♥Q | -1 | +12 |
| +3.2 | Round 2 | PLAN B BRIDGE | 20 | 5♣ | ♠9 | = | +2 |
| +3.2 | Round 3 | SUSHI BELT | 12 | 2♠ | ♦Q | -3 | +10 |
| +3.2 | Round 6 | BULGARIA MIXED | 17 | 3♥ | ♦K | +1 | +4 |
| +3.1 | Round 5 | MINITER | 12 | 4♠ | ♥5 | -1 | +5 |
| +3.1 | Round 8 | PARKER | 27 | 2♦ | ♠8 | = | +5 |
| +2.9 | Round 1 | HETZ | 13 | 6♦ | ♦6 | = | -13 |
| +2.8 | Round 2 | PLAN B BRIDGE | 15 | 3♣ | ♣2 | -1 | +5 |
| +2.8 | Round 8 | PARKER | 17 | 6NT | ♥6 | = | +0 |
| +2.5 | Round 6 | BULGARIA MIXED | 15 | 4♥ | ♠3 | -2 | +0 |
| +2.4 | Round 1 | HETZ | 2 | 3NT | ♠2 | +1 | -5 |
| +2.2 | Round 2 | PLAN B BRIDGE | 25 | 3NT | ♥3 | -1 | +0 |
| +2.2 | Round 4 | BV WALDSOLMS | 27 | 4♣ | ♥5 | -1 | +9 |
| +2.1 | Round 4 | BV WALDSOLMS | 16 | 3♣ | ♥A | -1 | +4 |
| +2.0 | Round 3 | SUSHI BELT | 1 | 4♥ | ♠A | -2 | +0 |
| +2.0 | Round 3 | SUSHI BELT | 5 | 4♥ | ♥A | +2 | +1 |
| +1.7 | Round 8 | PARKER | 20 | 3♣ | ♠4 | -1 | -1 |
| +1.6 | Round 6 | BULGARIA MIXED | 19 | 3NT | ♠4 | = | -1 |
| +1.6 | Round 7 | LEIBOWITZ | 2 | 1NT | ♣5 | +1 | +0 |
| +1.5 | Round 2 | PLAN B BRIDGE | 22 | 3NT | ♣8 | +1 | -11 |
| +1.3 | Round 6 | BULGARIA MIXED | 18 | 5♣ | ♥A | -1 | +5 |
| +1.2 | Round 1 | HETZ | 12 | 4♥ | ♣A | = | -1 |
| +1.2 | Round 8 | PARKER | 26 | 3♥ | ♣3 | -2 | +3 |
| +1.1 | Round 3 | SUSHI BELT | 14 | 4♠ | ♣3 | +1 | +0 |
| +1.0 | Round 1 | HETZ | 6 | 4♥ | ♦9 | = | +0 |
| +0.9 | Round 5 | MINITER | 5 | 3♥ | ♦J | -1 | +5 |
| +0.9 | Round 5 | MINITER | 11 | 3NT | ♦2 | +2 | +1 |
| +0.8 | Round 3 | SUSHI BELT | 13 | 6♥ | ♠4 | +1 | +13 |
| +0.8 | Round 4 | BV WALDSOLMS | 22 | 2♥ | ♦Q | +1 | +7 |
| +0.6 | Round 1 | HETZ | 3 | 4♠ | ♣4 | = | +0 |
| +0.6 | Round 3 | SUSHI BELT | 2 | 4♦ | ♠A | = | +6 |
| +0.6 | Round 7 | LEIBOWITZ | 10 | 3NT | ♥6 | +1 | -1 |
| +0.5 | Round 1 | HETZ | 11 | 2NT | ♥4 | = | +7 |
| +0.5 | Round 2 | PLAN B BRIDGE | 21 | 5♦x | ♣2 | -2 | -5 |
| +0.5 | Round 5 | MINITER | 14 | 1NT | ♥T | = | -1 |
| +0.5 | Round 7 | LEIBOWITZ | 13 | 6♥ | ♥3 | +1 | +13 |
| +0.4 | Round 2 | PLAN B BRIDGE | 16 | 2♥ | ♣6 | -1 | +5 |
| +0.4 | Round 3 | SUSHI BELT | 7 | 3NT | ♥4 | +1 | +0 |
| +0.3 | Round 7 | LEIBOWITZ | 6 | 4♥ | ♦K | = | +0 |
| +0.2 | Round 3 | SUSHI BELT | 11 | 4♥ | ♣Q | +1 | +0 |
| +0.2 | Round 6 | BULGARIA MIXED | 25 | 4♠ | ♥J | +1 | +0 |
| +0.1 | Round 1 | HETZ | 7 | 3♠ | ♦A | +1 | -1 |
| -0.0 | Round 5 | MINITER | 1 | Pass | -3 | ||
| -0.1 | Round 2 | PLAN B BRIDGE | 26 | 4♠ | ♥6 | -1 | +6 |
| -0.1 | Round 5 | MINITER | 3 | 4♠ | ♣8 | = | -13 |
| -0.2 | Round 4 | BV WALDSOLMS | 25 | 3♣ | ♠2 | -1 | +1 |
| -0.3 | Round 6 | BULGARIA MIXED | 16 | 4♥ | ♦6 | = | +0 |
| -0.3 | Round 7 | LEIBOWITZ | 8 | 4♥ | ♦3 | = | +0 |
| -0.3 | Round 7 | LEIBOWITZ | 9 | 3NT | ♥2 | +3 | +13 |
| -0.4 | Round 5 | MINITER | 9 | 3♠ | ♦6 | = | +6 |
| -0.5 | Round 7 | LEIBOWITZ | 14 | 4♠ | ♥9 | -1 | -4 |
| -0.6 | Round 1 | HETZ | 14 | 4♥ | ♣9 | = | +1 |
| -0.6 | Round 4 | BV WALDSOLMS | 20 | 1NT | ♠5 | -1 | -1 |
| -0.6 | Round 4 | BV WALDSOLMS | 24 | 3♦ | ♠9 | -1 | -4 |
| -0.6 | Round 8 | PARKER | 25 | 3NT | ♥2 | +1 | -1 |
| -0.7 | Round 8 | PARKER | 16 | 4♠ | ♥9 | = | +0 |
| -0.8 | Round 1 | HETZ | 10 | 5♥ | ♣6 | = | +0 |
| -0.9 | Round 4 | BV WALDSOLMS | 21 | 2♠ | ♥5 | +1 | +0 |
| -0.9 | Round 5 | MINITER | 2 | 3NT | ♥J | = | +0 |
| -1.1 | Round 4 | BV WALDSOLMS | 23 | 4♠ | ♦9 | -1 | -6 |
| -1.5 | Round 8 | PARKER | 18 | 3♠ | ♦T | = | -7 |
| -1.6 | Round 7 | LEIBOWITZ | 5 | 3♦ | ♥T | -1 | +0 |
| -1.7 | Round 1 | HETZ | 1 | 4♥ | ♣3 | +1 | -11 |
| -2.0 | Round 2 | PLAN B BRIDGE | 19 | 3NT | ♠2 | -2 | -11 |
| -2.0 | Round 3 | SUSHI BELT | 3 | 4♥ | ♣K | -1 | -5 |
| -2.0 | Round 6 | BULGARIA MIXED | 21 | 3♥ | ♠Q | = | +0 |
| -2.1 | Round 3 | SUSHI BELT | 9 | 3NT | ♥T | -2 | -8 |
| -2.2 | Round 1 | HETZ | 9 | 3♠ | ♥A | = | -7 |
| -2.6 | Round 2 | PLAN B BRIDGE | 24 | 4♥ | ♣J | -1 | +2 |
| -2.7 | Round 2 | PLAN B BRIDGE | 27 | 3♦x | ♦3 | -3 | -2 |
| -3.5 | Round 4 | BV WALDSOLMS | 18 | 4♠ | ♦J | = | -3 |
| -3.5 | Round 5 | MINITER | 7 | 5♥ | ♦6 | = | +10 |
| -3.7 | Round 7 | LEIBOWITZ | 1 | 3♥ | ♠2 | -1 | -10 |
| -3.8 | Round 5 | MINITER | 10 | 1NT | ♣T | +2 | -10 |
| -3.8 | Round 8 | PARKER | 21 | 3♠ | ♣T | -1 | -5 |
| -3.9 | Round 1 | HETZ | 4 | 4♠ | ♥T | -1 | -6 |
| -4.3 | Round 3 | SUSHI BELT | 8 | 5♦ | ♥3 | = | +1 |
| -4.9 | Round 7 | LEIBOWITZ | 4 | 4♠ | ♥8 | +1 | -11 |
| -5.0 | Round 2 | PLAN B BRIDGE | 23 | 6♦ | ♣2 | +1 | +13 |
| -5.3 | Round 6 | BULGARIA MIXED | 22 | 4♥ | ♦3 | -1 | -5 |
| -6.0 | Round 4 | BV WALDSOLMS | 19 | 4NT | ♥6 | +2 | -16 |
| -6.2 | Round 7 | LEIBOWITZ | 7 | 5♦ | ♠A | +2 | -14 |
| -6.3 | Round 7 | LEIBOWITZ | 11 | 3NT | ♥4 | = | +1 |
| -7.9 | Round 7 | LEIBOWITZ | 12 | 4♥ | ♠K | = | -6 |
| -8.2 | Round 2 | PLAN B BRIDGE | 17 | 6♥ | ♠T | = | +0 |
| -8.3 | Round 6 | BULGARIA MIXED | 23 | 4♥ | ♣K | -4 | -7 |
| -9.3 | Round 4 | BV WALDSOLMS | 15 | 4♠ | ♣J | -1 | -11 |
| -9.4 | Round 2 | PLAN B BRIDGE | 18 | 3NT | ♦J | -3 | -10 |
| -10.6 | Round 6 | BULGARIA MIXED | 28 | 6♠ | ♦2 | = | +0 |
| -12.9 | Round 5 | MINITER | 13 | 6♣ | ♥A | = | +2 |