ZHANG Yizhuo · PAN CHINA
408rank
-6.0Butler · 90 bds
-0.07per board
±4.4swing
+0.28vs par /bd · #236/695
-0.15adjusted /bd
by round
vs par split: bidding -0.08 · play +0.36
Strength of schedule: opponents averaged -0.08/bd (an easy draw) → opponent-adjusted -0.15/bd
Card play — on target: opening leads 95.8% #7 of 694 · declarer play 72.0% #428 of 694 · defence 81.8% #445 of 695
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (5) | 94.7% (19) |
| Declarer play | 71.4% (7) | 72.2% (18) |
| Defence | 100.0% (10) | 76.5% (34) |
Opening leads by suit led: ♠ 88.9% (9) · ♥ 100.0% (7) · ♦ 100.0% (3) · ♣ 100.0% (5)
vs par by strain: NT +0.76 (25) · a suit +0.09 (65)
vs par by level: part-score +0.29 (31) · game +0.07 (56) · slam +4.00 (3)
By role: declaring -0.18/bd (-1.91 vs par · 46) · defending +0.05/bd (+2.57 vs par · 44)
By vulnerability: vulnerable +0.07/bd (+0.29 vs par · 42) · not vulnerable -0.19/bd (+0.27 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Wu | V.Mihov – I.Nanev | Closed | 10 | -3.2 | -0.32 | +0.20 |
| Round 2 | Y.Wu | R.Amiry – H.Sherif | Closed | 10 | +12.2 | +1.22 | +1.20 |
| Round 4 | Y.Wu | T.Gotard – R.Jagniewski | Open | 10 | +7.2 | +0.72 | +1.60 |
| Round 5 | Y.Wu | J.Mcleod – C.Ackerley | Closed | 10 | +12.4 | +1.24 | +0.70 |
| Round 6 | Y.Wu | V.Li – A.Cheng | Closed | 10 | -18.6 | -1.86 | -2.00 |
| Round 7 | Y.Wu | L.Ahrens – M.Hoogsteden | Open | 10 | -8.2 | -0.82 | -2.80 |
| Round 10 | Y.Wu | S.Mello – P.Correa | Closed | 10 | +13.9 | +1.39 | +0.80 |
| Round 11 | Y.Wu | H.Begas – E.Schippers-Bosklopper | Closed | 10 | +5.6 | +0.56 | +4.00 |
| Round 14 | Y.Wu | M.Ionita – F.Filip | Open | 10 | -27.3 | -2.73 | -1.20 |
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 |
|---|---|---|---|---|---|---|---|
| +11.6 | Round 10 | RIO | 7 | 3NTx | ♠Q | -3 | +12 |
| +10.0 | Round 4 | ROSSARD | 6 | 5♠ | ♥K | -1 | +13 |
| +9.7 | Round 5 | TOTOJACK | 20 | 4♣x | ♦A | -3 | +5 |
| +8.9 | Round 2 | EGYPT | 20 | 4♠x | ♦A | = | +15 |
| +8.7 | Round 4 | ROSSARD | 3 | 4♠x | ♦K | = | +9 |
| +7.9 | Round 5 | TOTOJACK | 17 | 3NT | ♦Q | = | +7 |
| +6.8 | Round 5 | TOTOJACK | 19 | 6♣ | ♥A | -4 | +12 |
| +6.1 | Round 10 | RIO | 5 | 4♠ | ♠8 | = | +8 |
| +5.9 | Round 11 | PEGASUS 2 | 14 | 3NT | ♥9 | -1 | +10 |
| +5.7 | Round 11 | PEGASUS 2 | 11 | 4♥ | ♠4 | = | +11 |
| +5.5 | Round 10 | RIO | 8 | 3NT | ♣6 | = | +0 |
| +5.1 | Round 7 | STEPBRIDGE | 8 | 4♠ | ♥A | +2 | +11 |
| +5.0 | Round 11 | PEGASUS 2 | 12 | 3NT | ♥K | = | +0 |
| +4.6 | Round 6 | CHINA HONG KONG | 28 | 3♠ | ♠3 | +1 | +2 |
| +4.1 | Round 4 | ROSSARD | 10 | 6♠ | ♠2 | = | +0 |
| +4.0 | Round 1 | BULGARIA | 1 | 3NT | ♣A | -4 | +7 |
| +3.3 | Round 2 | EGYPT | 11 | 2♦ | ♣4 | = | +5 |
| +3.2 | Round 6 | CHINA HONG KONG | 25 | 3♠ | ♦6 | -3 | +2 |
| +2.4 | Round 10 | RIO | 4 | 2♠ | ♥7 | = | +6 |
| +2.3 | Round 11 | PEGASUS 2 | 13 | 4♥ | ♦5 | +1 | +0 |
| +2.1 | Round 1 | BULGARIA | 7 | 3NT | ♥5 | = | +0 |
| +2.0 | Round 2 | EGYPT | 15 | 3♣ | ♣10 | +1 | +0 |
| +1.8 | Round 1 | BULGARIA | 9 | 1NT | ♦9 | -1 | +5 |
| +1.8 | Round 4 | ROSSARD | 8 | 2♠ | ♦K | = | +0 |
| +1.7 | Round 2 | EGYPT | 14 | 4♠ | ♣7 | -2 | +0 |
| +1.6 | Round 4 | ROSSARD | 2 | 4♦ | ♥5 | -1 | +8 |
| +1.6 | Round 10 | RIO | 3 | 1NT | ♠5 | = | +0 |
| +1.4 | Round 2 | EGYPT | 16 | 4♠x | ♥9 | -1 | +0 |
| +1.4 | Round 10 | RIO | 9 | 2♠ | ♣7 | -1 | +6 |
| +1.4 | Round 11 | PEGASUS 2 | 15 | 3NT | ♦4 | +2 | +1 |
| +1.2 | Round 2 | EGYPT | 19 | 3♠ | ♦K | = | -8 |
| +1.0 | Round 2 | EGYPT | 13 | 3NT | ♣3 | +3 | +13 |
| +1.0 | Round 11 | PEGASUS 2 | 20 | 4♠ | ♥Q | +2 | +12 |
| +0.7 | Round 7 | STEPBRIDGE | 7 | 4♠ | ♦6 | = | +0 |
| +0.7 | Round 10 | RIO | 1 | 3NT | ♠4 | +2 | +0 |
| +0.6 | Round 1 | BULGARIA | 5 | 3♦ | ♦3 | +1 | -1 |
| +0.5 | Round 7 | STEPBRIDGE | 3 | 3NT | ♥5 | +1 | +1 |
| +0.3 | Round 6 | CHINA HONG KONG | 30 | 2♦ | ♠7 | = | -1 |
| +0.3 | Round 14 | ROM COLDEA | 14 | 3NT | ♦3 | = | +11 |
| +0.1 | Round 14 | ROM COLDEA | 12 | 3♠ | ♦A | -1 | -2 |
| -0.0 | Round 5 | TOTOJACK | 12 | 4♠ | ♦4 | +1 | +0 |
| +0.0 | Round 10 | RIO | 10 | 1♣ | ♥7 | +3 | +0 |
| -0.1 | Round 5 | TOTOJACK | 16 | 4♥ | ♠5 | +2 | -1 |
| -0.1 | Round 14 | ROM COLDEA | 13 | 5♦ | ♠Q | +2 | +13 |
| -0.1 | Round 14 | ROM COLDEA | 19 | 4♠ | ♥4 | +1 | +0 |
| -0.2 | Round 4 | ROSSARD | 5 | 4♥x | ♣A | -1 | +5 |
| -0.2 | Round 7 | STEPBRIDGE | 2 | 3NT | ♦10 | +2 | -1 |
| -0.3 | Round 1 | BULGARIA | 10 | 3♠ | ♥K | +1 | +1 |
| -0.3 | Round 5 | TOTOJACK | 11 | 4♠ | ♠10 | = | +0 |
| -0.4 | Round 4 | ROSSARD | 4 | 4♥ | ♠A | +1 | -1 |
| -0.4 | Round 7 | STEPBRIDGE | 5 | 2NT | ♦10 | = | -1 |
| -0.4 | Round 7 | STEPBRIDGE | 10 | 3NT | ♠6 | +4 | -16 |
| -0.6 | Round 7 | STEPBRIDGE | 1 | 3♠ | ♣3 | +1 | -6 |
| -0.8 | Round 2 | EGYPT | 17 | 2♠ | ♥7 | -1 | -2 |
| -0.9 | Round 6 | CHINA HONG KONG | 24 | 2♥x | ♠Q | -2 | +3 |
| -1.3 | Round 1 | BULGARIA | 4 | 4♠ | ♦6 | +1 | -13 |
| -1.4 | Round 1 | BULGARIA | 6 | 3♣ | ♠A | +2 | +10 |
| -1.7 | Round 6 | CHINA HONG KONG | 23 | 4♥ | ♥5 | +1 | +0 |
| -1.8 | Round 11 | PEGASUS 2 | 17 | 4♥ | ♣10 | -1 | -4 |
| -1.9 | Round 11 | PEGASUS 2 | 19 | 3NT | ♥10 | +3 | +11 |
| -2.1 | Round 6 | CHINA HONG KONG | 27 | 3♠ | ♣3 | -1 | -8 |
| -2.1 | Round 14 | ROM COLDEA | 11 | 1NT | ♥6 | +1 | -1 |
| -2.3 | Round 4 | ROSSARD | 7 | 3♥ | ♦8 | -2 | -3 |
| -2.4 | Round 5 | TOTOJACK | 13 | 4♠ | ♦7 | +3 | -12 |
| -2.4 | Round 7 | STEPBRIDGE | 4 | 3♣ | ♠A | = | -6 |
| -2.5 | Round 5 | TOTOJACK | 18 | 1NT | ♠Q | = | +1 |
| -2.5 | Round 6 | CHINA HONG KONG | 22 | 3♠ | ♥3 | = | +7 |
| -2.6 | Round 1 | BULGARIA | 3 | 5♣ | ♣3 | = | +0 |
| -2.6 | Round 2 | EGYPT | 18 | 3NT | ♦2 | -2 | -6 |
| -2.8 | Round 14 | ROM COLDEA | 15 | 4♥x | ♠3 | -1 | -7 |
| -2.9 | Round 1 | BULGARIA | 8 | 3♦ | ♠A | +1 | +0 |
| -3.0 | Round 5 | TOTOJACK | 15 | 6♥ | ♣2 | = | +0 |
| -3.0 | Round 14 | ROM COLDEA | 18 | 5♠ | ♣5 | -3 | -8 |
| -3.1 | Round 6 | CHINA HONG KONG | 26 | 2♠ | ♥5 | = | -6 |
| -3.1 | Round 7 | STEPBRIDGE | 6 | 4♥x | ♠K | -2 | +0 |
| -3.2 | Round 1 | BULGARIA | 2 | 3♥ | ♠4 | = | -7 |
| -3.3 | Round 11 | PEGASUS 2 | 18 | 4♠ | ♣K | = | -3 |
| -3.7 | Round 5 | TOTOJACK | 14 | 3NT | ♠A | -2 | -5 |
| -3.7 | Round 14 | ROM COLDEA | 16 | 5♦ | ♣4 | = | -3 |
| -3.9 | Round 2 | EGYPT | 12 | 4♥ | ♥J | -1 | -5 |
| -6.8 | Round 10 | RIO | 2 | 3NT | ♦6 | -2 | -13 |
| -7.0 | Round 4 | ROSSARD | 1 | 4♥x | ♠A | -2 | -5 |
| -7.0 | Round 6 | CHINA HONG KONG | 21 | 3NT | ♦7 | -2 | -6 |
| -7.4 | Round 7 | STEPBRIDGE | 9 | 5♣ | ♠J | -1 | -10 |
| -7.7 | Round 14 | ROM COLDEA | 17 | 4♠ | ♠10 | +2 | -14 |
| -8.2 | Round 14 | ROM COLDEA | 20 | 4♠ | ♠2 | = | -1 |
| -8.6 | Round 10 | RIO | 6 | 3NT | ♦7 | -2 | -11 |
| -8.7 | Round 11 | PEGASUS 2 | 16 | 5♦ | ♠J | = | +2 |
| -9.1 | Round 4 | ROSSARD | 9 | 4♥ | ♦A | = | -10 |
| -9.4 | Round 6 | CHINA HONG KONG | 29 | 4♠ | ♣3 | -1 | -13 |