ZHOU Zi Nan · GREEN PRIMARY SCHOOL
vs par split: bidding -2.50 · play -1.15
Strength of schedule: opponents averaged -0.48/bd (an easy draw) → opponent-adjusted -2.88/bd
Card play — on target: opening leads 83.3% · declarer play 50.0% · defence 66.7%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 100.0% (2) |
| Declarer play | 100.0% (1) | 0.0% (1) |
| Defence | 75.0% (4) | 62.5% (8) |
Opening leads by suit led: ♠ 100.0% (2) · ♦ 100.0% (1) · ♣ 66.7% (3)
vs par by strain: NT -6.11 (9) · a suit -1.64 (11)
vs par by level: part-score -5.00 (6) · game -1.18 (11) · slam -10.00 (3)
By role: declaring -5.09/bd (-9.88 vs par · 8) · defending -0.61/bd (+0.50 vs par · 12)
By vulnerability: vulnerable -1.20/bd (-3.20 vs par · 10) · not vulnerable -3.60/bd (-4.10 vs par · 10)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | L.Bai | K.Wu – Y.Shen | Closed | 10 | -37.7 | -3.77 | -4.80 |
| Round 2 | L.Bai | B.Goodwin – J.Novak | Closed | 10 | -10.3 | -1.03 | -2.50 |
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 |
|---|---|---|---|---|---|---|---|
| +11.9 | Round 2 | BRIDGEMATES | 13 | 4♥ | ♠5 | -6 | +12 |
| +8.8 | Round 2 | BRIDGEMATES | 20 | 4♥ | ♠5 | -3 | +9 |
| +5.6 | Round 2 | BRIDGEMATES | 11 | 3NT | ♣3 | -4 | +7 |
| +4.4 | Round 2 | BRIDGEMATES | 15 | 4♥ | ♣7 | -2 | +8 |
| +1.2 | Round 1 | CHINA XNWY | 2 | 1NT | ♠K | -1 | -1 |
| +0.8 | Round 2 | BRIDGEMATES | 17 | 3NT | ♦2 | +4 | -14 |
| -0.8 | Round 1 | CHINA XNWY | 1 | 3NT | ♣A | +2 | -1 |
| -0.8 | Round 1 | CHINA XNWY | 4 | 1NT | ♠K | +2 | -1 |
| -1.6 | Round 1 | CHINA XNWY | 9 | 3♣ | ♣J | -1 | -6 |
| -1.8 | Round 1 | CHINA XNWY | 10 | 4♥ | ♦4 | -1 | -6 |
| -1.9 | Round 2 | BRIDGEMATES | 14 | 4♠ | ♦5 | = | +1 |
| -3.5 | Round 1 | CHINA XNWY | 3 | 2♠ | ♦K | +2 | -1 |
| -4.1 | Round 2 | BRIDGEMATES | 19 | 2NT | ♣A | +1 | -10 |
| -4.8 | Round 1 | CHINA XNWY | 8 | 3♥ | ♠2 | = | -11 |
| -6.2 | Round 1 | CHINA XNWY | 7 | 3NTx | ♣A | -1 | -8 |
| -7.2 | Round 1 | CHINA XNWY | 6 | 3NT | ♣3 | -1 | -13 |
| -7.5 | Round 2 | BRIDGEMATES | 16 | 5♣x | ♠4 | -2 | -8 |
| -12.2 | Round 1 | CHINA XNWY | 5 | 6♥ | ♦J | = | +0 |
| -13.1 | Round 2 | BRIDGEMATES | 12 | 6NTx | ♦6 | -3 | -14 |
| -15.2 | Round 2 | BRIDGEMATES | 18 | 6♦x | ♣A | = | -16 |