ZHOU Jitong · CHINA SMZY SPLINTER
vs par split: bidding +0.88 · play +0.17
Strength of schedule: opponents averaged +0.16/bd (a tough draw) → opponent-adjusted +0.91/bd
Card play — on target: opening leads 82.4% #59 of 144 · declarer play 75.0% #55 of 144 · defence 80.0% #73 of 144
Bidding activity — not a pass: 37.6% #117 of 144 (68/181)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 88.9% (9) |
| Declarer play | 75.0% (4) | 75.0% (12) |
| Defence | 71.4% (14) | 85.7% (21) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 60.0% (5) · ♦ 100.0% (4) · ♣ 100.0% (4)
vs par by strain: NT +0.24 (25) · a suit +1.56 (39)
vs par by level: part-score +0.25 (28) · game +1.13 (30) · slam +4.33 (6)
By role: declaring +1.68/bd (-1.00 vs par · 29) · defending -0.02/bd (+2.74 vs par · 35)
By vulnerability: vulnerable +1.18/bd (+1.60 vs par · 30) · not vulnerable +0.38/bd (+0.56 vs par · 34)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | E.Liu | I.Kotewicz – A.Wojtowicz | Open | 8 | +6.5 | +0.81 | -0.12 |
| Round 2 | Y.Xu | Z.Wang – Y.Zhang | Open | 8 | +42.5 | +5.31 | +7.50 |
| Round 4 | O.Deng | K.Jurkiewicz – A.Mazur | Closed | 8 | +10.8 | +1.35 | -2.50 |
| Round 5 | B.Chen | H.Wang – X.Lyu | Closed | 8 | +2.9 | +0.36 | +0.12 |
| Round 6 | E.Liu | Z.Zabradi – G.Szabo | Open | 8 | +27.2 | +3.40 | -0.50 |
| Round 7 | O.Deng | C.Wu – T.Chen | Closed | 8 | -7.9 | -0.99 | -0.25 |
| Round 9 | E.Liu | M.Holowacz – J.Adamczak | Open | 8 | -13.4 | -1.68 | +3.50 |
| Round 10 | B.Chen | A.Zaidenberg Gatt – S.Zaidenberg Gatt | Closed | 8 | -20.5 | -2.56 | +0.62 |
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 |
|---|---|---|---|---|---|---|---|
| +11.8 | Round 2 | BRIDGE SCHOOL TEAM3 | 2 | 4♠ | ♦A | = | +11 |
| +11.5 | Round 2 | BRIDGE SCHOOL TEAM3 | 8 | 6♠ | ♦2 | = | +11 |
| +11.1 | Round 9 | AZS UW WARSAW 1 | 11 | 5♦x | ♥2 | -4 | +8 |
| +10.2 | Round 4 | VERCO CKIS SKAWINA | 23 | 6♠ | ♥9 | +1 | -13 |
| +10.1 | Round 2 | BRIDGE SCHOOL TEAM3 | 3 | 4♥ | ♠T | -3 | +14 |
| +9.2 | Round 6 | CZE HUN | 14 | 5♥ | ♦J | -1 | +10 |
| +9.1 | Round 9 | AZS UW WARSAW 1 | 18 | 3NT | ♣A | = | +3 |
| +8.1 | Round 10 | USRAEL | 21 | 3NT | ♥3 | -1 | +12 |
| +7.3 | Round 1 | VERCO | 25 | 3NT | ♣6 | = | -1 |
| +7.1 | Round 5 | RDFZ | 4 | 3NT | ♠2 | -2 | +7 |
| +6.8 | Round 6 | CZE HUN | 11 | 4♥ | ♣8 | = | +0 |
| +6.7 | Round 4 | VERCO CKIS SKAWINA | 28 | 2♣ | ♠7 | -3 | +5 |
| +6.7 | Round 6 | CZE HUN | 17 | 3NT | ♣A | +2 | +1 |
| +5.9 | Round 6 | CZE HUN | 16 | 4♠ | ♥J | = | +0 |
| +5.7 | Round 4 | VERCO CKIS SKAWINA | 26 | 4♠ | ♦5 | +2 | +13 |
| +5.7 | Round 5 | RDFZ | 1 | 3NT | ♦Q | +1 | -1 |
| +5.7 | Round 7 | CT 360 | 24 | 4♠ | ♦4 | -1 | +4 |
| +5.6 | Round 2 | BRIDGE SCHOOL TEAM3 | 5 | 6♥ | ♠A | -6 | +4 |
| +5.1 | Round 10 | USRAEL | 22 | 3NT | ♥2 | -1 | +10 |
| +4.3 | Round 2 | BRIDGE SCHOOL TEAM3 | 7 | 2♥ | ♣J | +1 | +6 |
| +4.1 | Round 2 | BRIDGE SCHOOL TEAM3 | 1 | 3♠ | ♥A | = | +7 |
| +3.8 | Round 1 | VERCO | 21 | 4♠ | ♦3 | +1 | +1 |
| +3.4 | Round 5 | RDFZ | 7 | 1NT | ♥6 | = | +6 |
| +2.9 | Round 1 | VERCO | 22 | 2♣ | ♠9 | +1 | +0 |
| +2.7 | Round 6 | CZE HUN | 13 | 2NT | ♠J | = | +0 |
| +2.2 | Round 4 | VERCO CKIS SKAWINA | 24 | 1♣ | ♣5 | +4 | -6 |
| +1.7 | Round 5 | RDFZ | 5 | 5♠ | ♣Q | = | +0 |
| +1.2 | Round 1 | VERCO | 23 | 2NT | ♦2 | +1 | -7 |
| +1.0 | Round 1 | VERCO | 27 | 1♠ | ♥6 | = | -1 |
| +0.8 | Round 10 | USRAEL | 25 | 3♦ | ♥Q | -1 | +11 |
| +0.5 | Round 6 | CZE HUN | 15 | 2NT | ♦8 | +1 | -6 |
| +0.3 | Round 7 | CT 360 | 22 | 4♥ | ♣K | -1 | +4 |
| +0.1 | Round 1 | VERCO | 26 | 2♠ | ♣J | +2 | +10 |
| +0.1 | Round 6 | CZE HUN | 12 | 3NT | ♣7 | -1 | -4 |
| -0.2 | Round 7 | CT 360 | 25 | 1NT | ♠3 | +1 | +0 |
| -0.5 | Round 7 | CT 360 | 27 | 1NT | ♠9 | -5 | +5 |
| -0.8 | Round 2 | BRIDGE SCHOOL TEAM3 | 4 | 6♥ | ♠A | -4 | +14 |
| -0.9 | Round 7 | CT 360 | 28 | 3NT | ♠Q | -1 | -1 |
| -1.3 | Round 9 | AZS UW WARSAW 1 | 13 | 2NT | ♥3 | +2 | +10 |
| -1.4 | Round 4 | VERCO CKIS SKAWINA | 25 | 3♦ | ♠K | = | +1 |
| -1.4 | Round 9 | AZS UW WARSAW 1 | 15 | 1NT | ♠K | -1 | -2 |
| -1.5 | Round 7 | CT 360 | 21 | 3♦ | ♦8 | = | +0 |
| -1.7 | Round 7 | CT 360 | 26 | 2♠ | ♥K | +2 | -1 |
| -2.1 | Round 4 | VERCO CKIS SKAWINA | 27 | 2♠ | ♥2 | -1 | -5 |
| -2.3 | Round 5 | RDFZ | 2 | 3♠ | ♥7 | -2 | +5 |
| -2.7 | Round 10 | USRAEL | 27 | 3NT | ♣J | = | +2 |
| -2.9 | Round 5 | RDFZ | 3 | 2♦ | ♠A | +1 | +0 |
| -3.0 | Round 9 | AZS UW WARSAW 1 | 12 | 2NT | ♥3 | +1 | -1 |
| -3.2 | Round 1 | VERCO | 24 | 3NT | ♠K | +1 | +0 |
| -3.4 | Round 10 | USRAEL | 24 | 3NT | ♥A | -1 | -5 |
| -4.1 | Round 2 | BRIDGE SCHOOL TEAM3 | 6 | 3♠ | ♣Q | = | -7 |
| -4.3 | Round 10 | USRAEL | 28 | 2♥ | ♣K | +1 | -1 |
| -4.6 | Round 4 | VERCO CKIS SKAWINA | 22 | 3NT | ♠4 | = | -5 |
| -4.7 | Round 6 | CZE HUN | 18 | 3♠ | ♣K | -1 | -5 |
| -4.8 | Round 5 | RDFZ | 8 | 1NT | ♣5 | +1 | -5 |
| -5.0 | Round 5 | RDFZ | 6 | 3NT | ♥5 | -2 | -11 |
| -5.9 | Round 4 | VERCO CKIS SKAWINA | 21 | 5♣ | ♠5 | -1 | -10 |
| -6.6 | Round 1 | VERCO | 28 | 4♠ | ♥2 | = | -3 |
| -6.8 | Round 9 | AZS UW WARSAW 1 | 17 | 4♥ | ♠2 | +1 | +0 |
| -9.1 | Round 7 | CT 360 | 23 | 4♥ | ♥3 | +1 | -13 |
| -9.1 | Round 9 | AZS UW WARSAW 1 | 14 | 6♠ | ♣3 | +1 | +11 |
| -11.7 | Round 10 | USRAEL | 23 | 4♥x | ♠2 | -3 | -12 |
| -12.0 | Round 9 | AZS UW WARSAW 1 | 16 | 6NT | ♦J | +1 | -1 |
| -12.4 | Round 10 | USRAEL | 26 | 3♠x | ♦K | -3 | -12 |