CHEN Bojia · CHINA SMZY SPLINTER
vs par split: bidding +0.11 · play +0.05
Strength of schedule: opponents averaged +0.62/bd (a tough draw) → opponent-adjusted +0.27/bd
Card play — on target: opening leads 93.8% #12 of 144 · declarer play 76.9% #46 of 144 · defence 82.9% #47 of 144
Bidding activity — not a pass: 39.3% #96 of 144 (66/168)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (5) | 90.9% (11) |
| Declarer play | 66.7% (3) | 80.0% (10) |
| Defence | 80.0% (10) | 84.0% (25) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (6) · ♦ 100.0% (2) · ♣ 75.0% (4)
vs par by strain: NT +0.60 (20) · a suit -0.04 (44)
vs par by level: part-score +0.12 (32) · game +0.74 (31) · slam -17.00 (1)
By role: declaring -0.59/bd (-3.10 vs par · 29) · defending -0.14/bd (+2.86 vs par · 35)
By vulnerability: vulnerable -0.94/bd (+0.04 vs par · 28) · not vulnerable +0.11/bd (+0.25 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | O.Deng | T.Bradkin – M.Blicharz | Closed | 8 | -8.9 | -1.11 | -0.62 |
| Round 2 | O.Deng | S.Liu – Z.Wang | Closed | 8 | +3.8 | +0.47 | -1.88 |
| Round 3 | O.Deng | Z.Meyer – L.Blocher | Closed | 8 | -1.4 | -0.17 | +0.62 |
| Round 5 | J.Zhou | H.Wang – X.Lyu | Closed | 8 | +2.9 | +0.36 | +0.12 |
| Round 6 | O.Deng | P.Slovakova – E.Konstacka | Closed | 8 | +12.1 | +1.51 | +5.25 |
| Round 8 | O.Deng | A.Chen – J.Xiao | Closed | 8 | -12.8 | -1.60 | +0.38 |
| Round 9 | O.Deng | H.Ozibko – K.Turant | Closed | 8 | +2.6 | +0.33 | -3.25 |
| Round 10 | J.Zhou | 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 |
|---|---|---|---|---|---|---|---|
| +9.9 | Round 9 | AZS UW WARSAW 1 | 13 | 3NT | ♥8 | +1 | +0 |
| +8.1 | Round 10 | USRAEL | 21 | 3NT | ♥3 | -1 | +12 |
| +7.1 | Round 5 | RDFZ | 4 | 3NT | ♠2 | -2 | +7 |
| +6.6 | Round 6 | CZE HUN | 16 | 4♠ | ♣2 | -1 | +12 |
| +6.4 | Round 9 | AZS UW WARSAW 1 | 18 | 4♠ | ♦5 | -2 | +12 |
| +6.2 | Round 2 | BRIDGE SCHOOL TEAM3 | 7 | 3♠ | ♣K | -3 | +5 |
| +5.7 | Round 5 | RDFZ | 1 | 3NT | ♦Q | +1 | -1 |
| +5.3 | Round 3 | WEPLAYBRIDGE4US | 17 | 3♠ | ♦Q | = | +10 |
| +5.1 | Round 10 | USRAEL | 22 | 3NT | ♥2 | -1 | +10 |
| +4.3 | Round 3 | WEPLAYBRIDGE4US | 13 | 4♠ | ♠T | = | +10 |
| +4.2 | Round 6 | CZE HUN | 11 | 5♦ | ♠9 | -1 | +10 |
| +4.1 | Round 2 | BRIDGE SCHOOL TEAM3 | 6 | 2♥ | ♣8 | +1 | +7 |
| +4.0 | Round 2 | BRIDGE SCHOOL TEAM3 | 5 | 1♥ | ♣6 | +1 | +6 |
| +3.4 | Round 5 | RDFZ | 7 | 1NT | ♥6 | = | +6 |
| +3.2 | Round 1 | VERCO | 24 | 3NT | ♠4 | +1 | +0 |
| +3.2 | Round 6 | CZE HUN | 14 | 4♠ | ♥3 | +3 | +2 |
| +3.1 | Round 1 | VERCO | 25 | 1NT | ♥2 | = | +11 |
| +3.1 | Round 8 | JACK | 2 | 4♠ | ♥6 | = | +0 |
| +2.6 | Round 1 | VERCO | 27 | 2♠ | ♥6 | -1 | +5 |
| +2.2 | Round 1 | VERCO | 22 | 3♣ | ♥3 | -1 | +5 |
| +2.1 | Round 3 | WEPLAYBRIDGE4US | 16 | 4♠ | ♠4 | = | +0 |
| +2.0 | Round 8 | JACK | 6 | 3♠ | ♥2 | -2 | -5 |
| +1.7 | Round 5 | RDFZ | 5 | 5♠ | ♣Q | = | +0 |
| +1.3 | Round 3 | WEPLAYBRIDGE4US | 18 | 4♠ | ♦K | +1 | -11 |
| +1.3 | Round 6 | CZE HUN | 17 | 2♠ | ♣3 | = | +8 |
| +0.8 | Round 10 | USRAEL | 25 | 3♦ | ♥Q | -1 | +11 |
| +0.6 | Round 2 | BRIDGE SCHOOL TEAM3 | 3 | 2♠ | ♣Q | +2 | -10 |
| +0.1 | Round 6 | CZE HUN | 18 | 3♠ | ♣K | = | +0 |
| -0.1 | Round 6 | CZE HUN | 12 | 3NT | ♦2 | -1 | +4 |
| -0.2 | Round 9 | AZS UW WARSAW 1 | 11 | 2♠ | ♦2 | +3 | +6 |
| -0.3 | Round 8 | JACK | 8 | 2♦ | ♥5 | = | -7 |
| -0.4 | Round 3 | WEPLAYBRIDGE4US | 14 | 4♠ | ♣9 | = | +9 |
| -0.7 | Round 9 | AZS UW WARSAW 1 | 14 | 4♠ | ♣2 | +3 | -14 |
| -0.8 | Round 8 | JACK | 1 | 1NT | ♥4 | = | -2 |
| -0.8 | Round 9 | AZS UW WARSAW 1 | 15 | 1NT | ♦Q | +1 | +0 |
| -0.9 | Round 9 | AZS UW WARSAW 1 | 17 | 1♦ | ♣5 | +2 | -8 |
| -1.1 | Round 2 | BRIDGE SCHOOL TEAM3 | 4 | 4♥ | ♣T | -3 | -15 |
| -1.3 | Round 8 | JACK | 3 | 4♥ | ♣5 | -1 | -5 |
| -1.4 | Round 6 | CZE HUN | 15 | 2♥ | ♠K | +2 | +6 |
| -1.6 | Round 3 | WEPLAYBRIDGE4US | 15 | 4♠ | ♥K | +1 | +0 |
| -1.8 | Round 6 | CZE HUN | 13 | 1NT | ♥Q | -1 | +0 |
| -1.9 | Round 1 | VERCO | 26 | 2♥ | ♣7 | -1 | -11 |
| -2.3 | Round 5 | RDFZ | 2 | 3♠ | ♥7 | -2 | +5 |
| -2.4 | Round 8 | JACK | 4 | 3NT | ♥3 | +2 | +12 |
| -2.5 | Round 2 | BRIDGE SCHOOL TEAM3 | 8 | 5♦ | ♠2 | +2 | -1 |
| -2.6 | Round 9 | AZS UW WARSAW 1 | 12 | 1♦ | ♣T | = | -5 |
| -2.7 | Round 3 | WEPLAYBRIDGE4US | 11 | 2♣ | ♦Q | = | +0 |
| -2.7 | Round 10 | USRAEL | 27 | 3NT | ♣J | = | +2 |
| -2.9 | Round 5 | RDFZ | 3 | 2♦ | ♠A | +1 | +0 |
| -3.2 | Round 2 | BRIDGE SCHOOL TEAM3 | 1 | 3♥ | ♣2 | +1 | -6 |
| -3.4 | Round 10 | USRAEL | 24 | 3NT | ♥A | -1 | -5 |
| -3.8 | Round 1 | VERCO | 21 | 4♠ | ♣J | +1 | -1 |
| -4.3 | Round 2 | BRIDGE SCHOOL TEAM3 | 2 | 3♥ | ♦2 | = | -1 |
| -4.3 | Round 10 | USRAEL | 28 | 2♥ | ♣K | +1 | -1 |
| -4.8 | Round 5 | RDFZ | 8 | 1NT | ♣5 | +1 | -5 |
| -5.0 | Round 5 | RDFZ | 6 | 3NT | ♥5 | -2 | -11 |
| -6.4 | Round 8 | JACK | 5 | 4♥ | ♣3 | +2 | +8 |
| -6.7 | Round 8 | JACK | 7 | 3NT | ♠9 | = | +2 |
| -7.1 | Round 1 | VERCO | 23 | 4♣x | ♠T | -1 | -2 |
| -7.2 | Round 1 | VERCO | 28 | 3♥ | ♦5 | = | -12 |
| -8.5 | Round 9 | AZS UW WARSAW 1 | 16 | 6NT | ♥8 | -2 | -17 |
| -9.7 | Round 3 | WEPLAYBRIDGE4US | 12 | 3NTx | ♠A | -2 | -13 |
| -11.7 | Round 10 | USRAEL | 23 | 4♥x | ♠2 | -3 | -12 |
| -12.4 | Round 10 | USRAEL | 26 | 3♠x | ♦K | -3 | -12 |