ZHAO Chen · ZHAO
105rank
+5.1Butler · 98 bds
+0.05per board
±4.2swing
-0.37vs par /bd · #149/196
-0.39adjusted /bd
by round
vs par split: bidding -0.27 · play -0.10
Strength of schedule: opponents averaged -0.44/bd (an easy draw) → opponent-adjusted -0.39/bd
Card play — on target: opening leads 81.8% #79 of 196 · declarer play 70.6% #154 of 196 · defence 77.1% #174 of 196
Bidding activity — not a pass: 43.5% #97 of 196 (127/292)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 71.4% (7) | 86.7% (15) |
| Declarer play | 75.0% (8) | 66.7% (9) |
| Defence | 72.7% (11) | 78.4% (37) |
Opening leads by suit led: ♠ 85.7% (7) · ♥ 85.7% (7) · ♦ 100.0% (5) · ♣ 33.3% (3)
vs par by strain: NT -0.31 (29) · a suit -0.39 (69)
vs par by level: part-score -0.47 (38) · game -0.55 (51) · slam +1.11 (9)
By role: declaring +0.88/bd (-1.40 vs par · 50) · defending -0.81/bd (+0.71 vs par · 48)
By vulnerability: vulnerable +0.28/bd (-0.67 vs par · 49) · not vulnerable -0.18/bd (-0.06 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Liu | B.Krawczyk – F.Kurlit | Closed | 14 | -10.9 | -0.78 | -1.29 |
| Round 2 | J.Liu | Z.Shi – C.Ju | Closed | 14 | +18.0 | +1.29 | +0.64 |
| Round 4 | L.Hu | M.Knottenbelt – M.Byrne | Open | 14 | -13.4 | -0.96 | -1.57 |
| Round 5 | L.Hu | C.Ng – C.Wai | Open | 14 | +18.1 | +1.29 | -0.14 |
| Round 6 | L.Hu | S.Kushari – K.Bendre | Open | 14 | -18.9 | -1.35 | -2.57 |
| Round 7 | L.Hu | H.So – L.Kuo | Closed | 14 | -5.2 | -0.37 | -0.21 |
| Round 8 | L.Hu | L.Gan – M.An | Closed | 14 | +17.4 | +1.24 | +2.57 |
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 |
|---|---|---|---|---|---|---|---|
| +13.0 | Round 2 | CHINA OPEN TEAM 1 | 21 | 3♣x | ♥2 | +1 | +12 |
| +10.7 | Round 5 | RILAKKUMA | 7 | 4♠x | ♣A | -2 | +9 |
| +9.6 | Round 5 | RILAKKUMA | 13 | 3NT | ♠4 | = | +10 |
| +8.5 | Round 8 | BEIJING RUHAI | 21 | 6♥ | ♠J | +1 | +11 |
| +8.0 | Round 2 | CHINA OPEN TEAM 1 | 15 | 5♣ | ♦T | = | -1 |
| +6.3 | Round 8 | BEIJING RUHAI | 17 | 4♠ | ♦3 | +3 | +14 |
| +6.2 | Round 7 | AMANDA | 8 | 5♣x | ♥6 | +1 | +8 |
| +6.0 | Round 8 | BEIJING RUHAI | 25 | 3NT | ♥A | -2 | +3 |
| +5.9 | Round 6 | FORMIDABLES | 26 | 4♠ | ♥5 | = | +0 |
| +5.6 | Round 2 | CHINA OPEN TEAM 1 | 25 | 6♠x | ♥A | -4 | +0 |
| +5.4 | Round 5 | RILAKKUMA | 11 | 4♦ | ♠A | +1 | +7 |
| +5.0 | Round 7 | AMANDA | 4 | 5♣ | ♥8 | = | +0 |
| +4.9 | Round 2 | CHINA OPEN TEAM 1 | 26 | 3NT | ♠Q | +1 | +11 |
| +4.6 | Round 1 | EMI | 2 | 2♠ | ♥K | = | +0 |
| +4.4 | Round 4 | KNOTTENBELT | 22 | 3NT | ♦J | +2 | +2 |
| +4.0 | Round 1 | EMI | 10 | 1NT | ♠Q | +1 | +5 |
| +3.6 | Round 8 | BEIJING RUHAI | 28 | 3NT | ♦6 | -2 | +6 |
| +3.3 | Round 2 | CHINA OPEN TEAM 1 | 17 | 1NT | ♠2 | +1 | +6 |
| +3.3 | Round 5 | RILAKKUMA | 8 | 4♠ | ♦T | = | +0 |
| +3.2 | Round 5 | RILAKKUMA | 10 | 3NT | ♥A | = | -1 |
| +3.1 | Round 8 | BEIJING RUHAI | 24 | 1NT | ♠4 | +3 | +2 |
| +2.8 | Round 6 | FORMIDABLES | 25 | 2♠ | ♦9 | -1 | +5 |
| +2.7 | Round 4 | KNOTTENBELT | 27 | 6♣ | ♦Q | = | +0 |
| +2.3 | Round 4 | KNOTTENBELT | 18 | 2♠ | ♦A | = | +1 |
| +2.3 | Round 4 | KNOTTENBELT | 19 | 3♥ | ♣2 | +2 | -6 |
| +2.3 | Round 7 | AMANDA | 3 | 4♥ | ♣4 | = | +0 |
| +2.2 | Round 5 | RILAKKUMA | 4 | 4♠x | ♦6 | -3 | -12 |
| +2.0 | Round 2 | CHINA OPEN TEAM 1 | 22 | 3NT | ♥2 | = | +7 |
| +1.9 | Round 1 | EMI | 5 | 4♥ | ♠6 | -1 | +5 |
| +1.6 | Round 4 | KNOTTENBELT | 17 | 3♣ | ♦2 | +2 | +2 |
| +1.5 | Round 5 | RILAKKUMA | 5 | 2♥ | ♦2 | = | +11 |
| +1.4 | Round 8 | BEIJING RUHAI | 22 | 2♠ | ♥3 | -1 | +2 |
| +1.2 | Round 6 | FORMIDABLES | 17 | 3NT | ♦K | +2 | +0 |
| +1.2 | Round 7 | AMANDA | 9 | 4♠ | ♣3 | = | +0 |
| +1.1 | Round 6 | FORMIDABLES | 23 | 3NT | ♦4 | = | +0 |
| +1.0 | Round 7 | AMANDA | 6 | 2♠ | ♣A | = | +6 |
| +0.9 | Round 4 | KNOTTENBELT | 24 | 4♥ | ♦J | +1 | +0 |
| +0.8 | Round 1 | EMI | 1 | 2♠ | ♥3 | -1 | +4 |
| +0.7 | Round 7 | AMANDA | 14 | 4♠ | ♥3 | +3 | -10 |
| +0.6 | Round 1 | EMI | 3 | 4♥ | ♣5 | = | +0 |
| +0.6 | Round 1 | EMI | 6 | 4♠ | ♣A | -1 | -4 |
| +0.5 | Round 7 | AMANDA | 7 | 3NT | ♦3 | +1 | +0 |
| +0.5 | Round 7 | AMANDA | 12 | 4♠ | ♦T | = | +0 |
| +0.5 | Round 8 | BEIJING RUHAI | 16 | 3NT | ♦4 | +1 | +0 |
| +0.4 | Round 6 | FORMIDABLES | 16 | 2♠ | ♥J | -2 | -1 |
| +0.3 | Round 1 | EMI | 8 | 1NT | ♥6 | = | +1 |
| +0.3 | Round 2 | CHINA OPEN TEAM 1 | 24 | 4♠ | ♦7 | +1 | +0 |
| +0.3 | Round 4 | KNOTTENBELT | 23 | 6♠ | ♥7 | = | +0 |
| +0.3 | Round 5 | RILAKKUMA | 3 | 3NT | ♠J | = | +1 |
| +0.1 | Round 2 | CHINA OPEN TEAM 1 | 23 | 3♥ | ♦A | -1 | +1 |
| +0.0 | Round 4 | KNOTTENBELT | 26 | 5♥ | ♠K | -1 | -7 |
| +0.0 | Round 8 | BEIJING RUHAI | 27 | 4♥ | ♣4 | +2 | +11 |
| -0.2 | Round 2 | CHINA OPEN TEAM 1 | 18 | 3NT | ♠2 | +3 | +10 |
| -0.3 | Round 8 | BEIJING RUHAI | 18 | 3NT | ♦2 | +2 | -12 |
| -0.5 | Round 6 | FORMIDABLES | 24 | 2♥ | ♦T | -2 | -7 |
| -0.5 | Round 8 | BEIJING RUHAI | 20 | 1NT | ♣5 | = | +1 |
| -0.9 | Round 4 | KNOTTENBELT | 28 | 3♠ | ♥7 | = | +0 |
| -1.0 | Round 1 | EMI | 9 | 2♠ | ♦A | -1 | -1 |
| -1.0 | Round 7 | AMANDA | 5 | 5♦ | ♥4 | = | +0 |
| -1.0 | Round 8 | BEIJING RUHAI | 23 | 2♥ | ♦J | = | -1 |
| -1.1 | Round 4 | KNOTTENBELT | 15 | 2♠ | ♥T | -1 | -5 |
| -1.3 | Round 5 | RILAKKUMA | 6 | 2NT | ♣5 | = | -12 |
| -1.3 | Round 6 | FORMIDABLES | 27 | 2♥ | ♠A | -1 | -2 |
| -1.3 | Round 7 | AMANDA | 11 | 4♠ | ♦K | -1 | -4 |
| -1.4 | Round 5 | RILAKKUMA | 2 | 4♠ | ♣K | -1 | +5 |
| -1.5 | Round 2 | CHINA OPEN TEAM 1 | 20 | 1NT | ♣5 | -3 | -9 |
| -1.8 | Round 6 | FORMIDABLES | 21 | 2♠ | ♥A | = | -7 |
| -1.9 | Round 1 | EMI | 4 | 4♠ | ♥K | +1 | -1 |
| -2.0 | Round 5 | RILAKKUMA | 12 | 4♠ | ♦Q | +1 | +0 |
| -2.1 | Round 1 | EMI | 11 | 3♠ | ♥A | = | -1 |
| -2.1 | Round 8 | BEIJING RUHAI | 26 | 4♥ | ♦A | = | +0 |
| -2.2 | Round 1 | EMI | 12 | 2♠ | ♥6 | +1 | +0 |
| -2.4 | Round 6 | FORMIDABLES | 15 | 4♠x | ♥A | -2 | -5 |
| -2.5 | Round 4 | KNOTTENBELT | 16 | 4♦ | ♥6 | = | -1 |
| -2.7 | Round 6 | FORMIDABLES | 19 | 1NT | ♣4 | +2 | +0 |
| -2.8 | Round 7 | AMANDA | 2 | 6♥ | ♠5 | +1 | +11 |
| -3.3 | Round 5 | RILAKKUMA | 14 | 3♣ | ♦A | +1 | -1 |
| -3.6 | Round 2 | CHINA OPEN TEAM 1 | 16 | 5♠ | ♦9 | -1 | -8 |
| -3.9 | Round 6 | FORMIDABLES | 22 | 3NT | ♣5 | -1 | -6 |
| -3.9 | Round 8 | BEIJING RUHAI | 19 | 6♠ | ♣A | = | -1 |
| -4.0 | Round 6 | FORMIDABLES | 18 | 3NT | ♥J | +1 | -1 |
| -4.1 | Round 2 | CHINA OPEN TEAM 1 | 28 | 3NT | ♠2 | +2 | -6 |
| -4.2 | Round 8 | BEIJING RUHAI | 15 | 6♥ | ♠A | = | +0 |
| -4.3 | Round 7 | AMANDA | 1 | 3♦ | ♠4 | +1 | -6 |
| -4.6 | Round 2 | CHINA OPEN TEAM 1 | 27 | 3♦ | ♥7 | -4 | -3 |
| -4.6 | Round 4 | KNOTTENBELT | 21 | 1NT | ♠2 | -3 | +3 |
| -4.6 | Round 6 | FORMIDABLES | 20 | 4♦ | ♣K | +1 | -10 |
| -4.7 | Round 5 | RILAKKUMA | 1 | 3♠ | ♣A | = | -7 |
| -4.8 | Round 1 | EMI | 7 | 3NT | ♣2 | -2 | -7 |
| -5.2 | Round 2 | CHINA OPEN TEAM 1 | 19 | 6♦ | ♥2 | -1 | -11 |
| -5.4 | Round 5 | RILAKKUMA | 9 | 3NT | ♦T | -1 | -12 |
| -5.8 | Round 1 | EMI | 14 | 4♠ | ♥K | -2 | -6 |
| -5.9 | Round 1 | EMI | 13 | 4♠ | ♥A | -2 | -13 |
| -6.4 | Round 7 | AMANDA | 10 | 2♥x | ♠3 | -1 | -7 |
| -6.8 | Round 7 | AMANDA | 13 | 5♥ | ♠A | = | -1 |
| -9.1 | Round 6 | FORMIDABLES | 28 | 4♠ | ♥6 | +1 | -2 |
| -9.3 | Round 4 | KNOTTENBELT | 20 | 3NT | ♣7 | +1 | -11 |
| -9.5 | Round 4 | KNOTTENBELT | 25 | 6♠ | ♥T | = | +0 |