🇵🇱 PROKOPOWICZ Marcel · POLAND
29rank
+42.3Butler · 88 bds
+0.48per board
±4.5swing
-0.18vs par /bd · #64/105
+0.23adjusted /bd
by round
vs par split: bidding -0.05 · play -0.14
Strength of schedule: opponents averaged -0.25/bd (an easy draw) → opponent-adjusted +0.23/bd
Card play — on target: opening leads 80.0% #66 of 105 · declarer play 84.0% #7 of 105 · defence 84.4% #36 of 105
Bidding activity — not a pass: 46.8% #20 of 105 (116/248)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 57.1% (7) | 92.3% (13) |
| Declarer play | 50.0% (4) | 90.5% (21) |
| Defence | 86.7% (15) | 83.3% (30) |
Opening leads by suit led: ♠ 50.0% (4) · ♥ 83.3% (6) · ♦ 83.3% (6) · ♣ 100.0% (4)
vs par by strain: NT -0.17 (23) · a suit -0.18 (65)
vs par by level: part-score +0.17 (36) · game -0.41 (46) · slam -0.50 (6)
By role: declaring +0.63/bd (-2.19 vs par · 43) · defending +0.34/bd (+1.73 vs par · 45)
By vulnerability: vulnerable -0.00/bd (-1.79 vs par · 44) · not vulnerable +0.96/bd (+1.43 vs par · 44)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | B.Mroz | P.Bansal – V.Gahrotra | Closed | 8 | -5.3 | -0.66 | -1.00 |
| Round 4 | B.Mroz | Y.Liu – P.Wu | Closed | 8 | -24.3 | -3.04 | -3.12 |
| Round 5 | B.Mroz | E.Wang – Z.Yao | Closed | 8 | -3.2 | -0.40 | +0.25 |
| Round 6 | B.Mroz | A.Shih – K.Chen | Closed | 8 | -0.1 | -0.01 | -0.50 |
| Round 7 | B.Mroz | A.Xu – L.Blocher | Closed | 8 | +20.2 | +2.52 | +1.88 |
| Round 8 | B.Mroz | K.Roeangriwong – P.Aramruang | Closed | 8 | -8.7 | -1.09 | -4.62 |
| Round 11 | B.Mroz | Z.Zhao – Z.Zhu | Closed | 8 | +29.2 | +3.65 | +1.88 |
| Round 12 | B.Mroz | C.Zeeberg – T.Holm Faxoee | Closed | 8 | +8.7 | +1.09 | +2.00 |
| Round 13 | B.Mroz | K.Visser – D.De Rooij | Closed | 8 | +18.6 | +2.33 | +3.38 |
| Round 14 | B.Mroz | A.Blicharz – W.Marshall | Closed | 8 | -1.0 | -0.12 | -4.50 |
| Round 17 | B.Mroz | M.De Wiljes – A.Wlad | Closed | 8 | +8.2 | +1.02 | +2.38 |
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 |
|---|---|---|---|---|---|---|---|
| +10.9 | Round 17 | 🇩🇪 GERMANY | 15 | 4♠ | ♥6 | -2 | +13 |
| +10.8 | Round 7 | 🇺🇸 USA2 | 21 | 5♦ | ♥2 | -1 | +14 |
| +9.2 | Round 8 | 🇹🇭 THAILAND | 28 | 6♠ | ♣T | = | +0 |
| +8.9 | Round 13 | 🇳🇱 NETHERLANDS | 14 | 3NT | ♦A | -3 | +12 |
| +7.8 | Round 11 | 🇨🇳 CHINA | 22 | 6♠ | ♥3 | = | +11 |
| +7.0 | Round 11 | 🇨🇳 CHINA | 24 | 5♣ | ♠7 | -3 | +11 |
| +6.9 | Round 11 | 🇨🇳 CHINA | 18 | 4♥x | ♣A | -2 | -7 |
| +6.1 | Round 12 | 🇩🇰 DENMARK | 25 | 2♥ | ♦A | +1 | +11 |
| +6.1 | Round 12 | 🇩🇰 DENMARK | 28 | 4♠ | ♦6 | +1 | +7 |
| +5.8 | Round 17 | 🇩🇪 GERMANY | 16 | 3NT | ♣5 | -2 | +6 |
| +5.6 | Round 13 | 🇳🇱 NETHERLANDS | 15 | 2♦x | ♠T | -2 | +4 |
| +5.4 | Round 3 | 🇮🇳 INDIA | 18 | 2♦ | ♠2 | +2 | +6 |
| +5.4 | Round 13 | 🇳🇱 NETHERLANDS | 10 | 4♠x | ♣A | -2 | -3 |
| +4.9 | Round 11 | 🇨🇳 CHINA | 23 | 3NT | ♥3 | = | -1 |
| +4.6 | Round 6 | 🇺🇸 USA1 | 13 | 4♥ | ♣4 | +2 | +1 |
| +4.6 | Round 7 | 🇺🇸 USA2 | 22 | 3NT | ♦T | = | +0 |
| +4.2 | Round 14 | 🏴 ENGLAND | 24 | 4♥ | ♣K | = | +0 |
| +3.8 | Round 7 | 🇺🇸 USA2 | 19 | 4♥ | ♣J | = | +0 |
| +3.8 | Round 12 | 🇩🇰 DENMARK | 27 | 4♠ | ♥8 | -1 | +10 |
| +3.4 | Round 6 | 🇺🇸 USA1 | 15 | 4♠ | ♣4 | = | +0 |
| +3.3 | Round 17 | 🇩🇪 GERMANY | 13 | 4♥ | ♣7 | +1 | +0 |
| +3.0 | Round 13 | 🇳🇱 NETHERLANDS | 11 | 3♥ | ♠3 | +1 | +4 |
| +2.9 | Round 14 | 🏴 ENGLAND | 23 | 3♦ | ♠A | +2 | -10 |
| +2.4 | Round 4 | 🇹🇼 CHINESE TAIPEI | 32 | 6NT | ♠4 | = | -11 |
| +2.3 | Round 6 | 🇺🇸 USA1 | 16 | 2♦ | ♣8 | +1 | +0 |
| +2.3 | Round 8 | 🇹🇭 THAILAND | 31 | 3NT | ♦6 | = | -1 |
| +2.2 | Round 17 | 🇩🇪 GERMANY | 14 | 2NT | ♦7 | = | +6 |
| +1.9 | Round 5 | 🇭🇰 HONG KONG CHINA | 4 | 4♦ | ♥2 | = | +0 |
| +1.9 | Round 7 | 🇺🇸 USA2 | 20 | 2♦ | ♦2 | = | +2 |
| +1.8 | Round 3 | 🇮🇳 INDIA | 19 | 2♠ | ♦J | = | +0 |
| +1.8 | Round 11 | 🇨🇳 CHINA | 17 | 2♠ | ♣9 | +1 | +0 |
| +1.7 | Round 3 | 🇮🇳 INDIA | 21 | 2NT | ♦7 | = | +0 |
| +1.7 | Round 6 | 🇺🇸 USA1 | 11 | 2♥ | ♦5 | = | +0 |
| +1.6 | Round 14 | 🏴 ENGLAND | 19 | 4♠ | ♥A | = | -1 |
| +1.5 | Round 14 | 🏴 ENGLAND | 18 | 2NT | ♣J | -1 | -3 |
| +1.4 | Round 11 | 🇨🇳 CHINA | 21 | 1♥ | ♠4 | -1 | +1 |
| +1.4 | Round 14 | 🏴 ENGLAND | 20 | 4♠ | ♦T | -2 | -9 |
| +1.2 | Round 4 | 🇹🇼 CHINESE TAIPEI | 31 | 1NT | ♦Q | -1 | +4 |
| +1.2 | Round 17 | 🇩🇪 GERMANY | 9 | 4♥ | ♣4 | +1 | +11 |
| +1.0 | Round 4 | 🇹🇼 CHINESE TAIPEI | 30 | 3♠ | ♦2 | = | +1 |
| +1.0 | Round 5 | 🇭🇰 HONG KONG CHINA | 5 | 3♠ | ♥A | -1 | -6 |
| +1.0 | Round 5 | 🇭🇰 HONG KONG CHINA | 6 | 1NT | ♥5 | +2 | +10 |
| +0.9 | Round 8 | 🇹🇭 THAILAND | 32 | 5♦ | ♣T | = | -11 |
| +0.6 | Round 7 | 🇺🇸 USA2 | 17 | 3♠ | ♦5 | -1 | +4 |
| +0.6 | Round 13 | 🇳🇱 NETHERLANDS | 16 | 3♠ | ♥Q | +1 | +10 |
| +0.5 | Round 5 | 🇭🇰 HONG KONG CHINA | 1 | 3♣ | ♥3 | = | +5 |
| +0.5 | Round 5 | 🇭🇰 HONG KONG CHINA | 3 | 4♠ | ♦4 | = | +0 |
| +0.5 | Round 11 | 🇨🇳 CHINA | 19 | 3NT | ♦5 | = | +0 |
| +0.5 | Round 12 | 🇩🇰 DENMARK | 26 | 4♠ | ♣K | = | +0 |
| +0.4 | Round 7 | 🇺🇸 USA2 | 23 | 3♠ | ♥2 | -1 | -6 |
| +0.4 | Round 13 | 🇳🇱 NETHERLANDS | 12 | 4♠ | ♣4 | = | +1 |
| -0.1 | Round 5 | 🇭🇰 HONG KONG CHINA | 7 | 4♠ | ♥2 | = | +0 |
| -0.1 | Round 8 | 🇹🇭 THAILAND | 30 | 4♠ | ♦4 | +2 | -1 |
| -0.1 | Round 14 | 🏴 ENGLAND | 22 | 3NT | ♠9 | +2 | +0 |
| -0.3 | Round 7 | 🇺🇸 USA2 | 24 | 1NT | ♠4 | = | +1 |
| -0.4 | Round 12 | 🇩🇰 DENMARK | 32 | 4♥ | ♣A | +1 | +0 |
| -0.5 | Round 3 | 🇮🇳 INDIA | 22 | 3NT | ♦3 | = | +0 |
| -0.5 | Round 12 | 🇩🇰 DENMARK | 29 | 2♠ | ♣K | +1 | -1 |
| -0.8 | Round 6 | 🇺🇸 USA1 | 14 | 6♦ | ♠9 | +1 | +2 |
| -0.9 | Round 8 | 🇹🇭 THAILAND | 26 | 2♥ | ♦A | = | -6 |
| -1.0 | Round 4 | 🇹🇼 CHINESE TAIPEI | 26 | 2NT | ♠A | = | -11 |
| -1.1 | Round 11 | 🇨🇳 CHINA | 20 | 1NT | ♥6 | +1 | +0 |
| -1.1 | Round 13 | 🇳🇱 NETHERLANDS | 13 | 4♠ | ♠4 | +1 | +0 |
| -1.2 | Round 3 | 🇮🇳 INDIA | 20 | 3NT | ♦5 | +1 | -1 |
| -1.3 | Round 4 | 🇹🇼 CHINESE TAIPEI | 25 | 2♠ | ♣4 | +2 | -6 |
| -1.5 | Round 8 | 🇹🇭 THAILAND | 27 | 3♠ | ♥2 | = | +7 |
| -1.5 | Round 14 | 🏴 ENGLAND | 21 | 4♥ | ♦K | = | +0 |
| -1.6 | Round 7 | 🇺🇸 USA2 | 18 | 3♦ | ♣7 | = | +0 |
| -1.8 | Round 3 | 🇮🇳 INDIA | 24 | 2NT | ♥Q | +1 | +0 |
| -1.8 | Round 17 | 🇩🇪 GERMANY | 11 | 4♠ | ♠9 | +1 | +0 |
| -2.6 | Round 12 | 🇩🇰 DENMARK | 31 | 5♠ | ♠4 | = | -11 |
| -2.8 | Round 6 | 🇺🇸 USA1 | 9 | 4♠ | ♦A | -2 | -7 |
| -3.4 | Round 6 | 🇺🇸 USA1 | 10 | 5♣ | ♥A | = | +0 |
| -3.5 | Round 5 | 🇭🇰 HONG KONG CHINA | 8 | 4♥ | ♠K | -2 | -5 |
| -4.1 | Round 3 | 🇮🇳 INDIA | 17 | 4♠ | ♦J | -2 | -6 |
| -4.2 | Round 13 | 🇳🇱 NETHERLANDS | 9 | 1NT | ♠4 | +2 | -1 |
| -4.3 | Round 12 | 🇩🇰 DENMARK | 30 | 3NT | ♦J | +1 | +0 |
| -4.5 | Round 5 | 🇭🇰 HONG KONG CHINA | 2 | 5♥ | ♣A | -2 | -2 |
| -5.0 | Round 17 | 🇩🇪 GERMANY | 12 | 3NT | ♦4 | +1 | -1 |
| -5.1 | Round 6 | 🇺🇸 USA1 | 12 | 2♠ | ♣6 | -2 | +0 |
| -6.6 | Round 3 | 🇮🇳 INDIA | 23 | 3♥x | ♥9 | +1 | -7 |
| -6.6 | Round 4 | 🇹🇼 CHINESE TAIPEI | 27 | 4♥ | ♦Q | = | +0 |
| -8.0 | Round 8 | 🇹🇭 THAILAND | 29 | 4♠ | ♦5 | -1 | -13 |
| -8.4 | Round 17 | 🇩🇪 GERMANY | 10 | 6♠ | ♦J | -1 | -16 |
| -8.9 | Round 4 | 🇹🇼 CHINESE TAIPEI | 28 | 6♣ | ♥3 | +1 | +11 |
| -10.6 | Round 8 | 🇹🇭 THAILAND | 25 | 5♥ | ♠J | -1 | -12 |
| -11.0 | Round 14 | 🏴 ENGLAND | 17 | 2♥x | ♥5 | = | -13 |
| -11.1 | Round 4 | 🇹🇼 CHINESE TAIPEI | 29 | 3NT | ♥9 | -2 | -13 |