DE DONDER Steven · RIVIERA
vs par split: bidding -0.70 · play +0.17
Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted +0.17/bd
Card play — on target: opening leads 78.9% #37 of 66 · declarer play 66.7% #57 of 66 · defence 85.3% #27 of 66
Bidding activity — not a pass: 41.1% #42 of 66 (81/197)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (1) | 77.8% (18) |
| Declarer play | 57.1% (7) | 72.7% (11) |
| Defence | 75.0% (8) | 88.5% (26) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 50.0% (4) · ♦ 80.0% (5) · ♣ 100.0% (4)
vs par by strain: NT -4.19 (21) · a suit +1.04 (49)
vs par by level: part-score -1.31 (26) · game +0.10 (40) · slam -1.75 (4)
By role: declaring -0.70/bd (-3.75 vs par · 36) · defending +0.89/bd (+2.88 vs par · 34)
By vulnerability: vulnerable +0.90/bd (-0.22 vs par · 37) · not vulnerable -0.86/bd (-0.88 vs par · 33)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | D.De Roos | B.Gierulski – J.Skrzypczak | Closed | 10 | +26.1 | +2.61 | +2.50 |
| Round 3 | D.De Roos | G.Hop – Y.Smit | Open | 10 | -0.1 | -0.01 | -0.30 |
| Round 4 | D.De Roos | L.De Michelis – G.Failla | Closed | 10 | -11.7 | -1.17 | -1.20 |
| Round 6 | D.De Roos | A.Majcher – R.Glodowski | Closed | 10 | +25.3 | +2.53 | +2.10 |
| Round 7 | D.De Roos | T.Garvey – A.Mesbur | Open | 10 | +6.2 | +0.62 | -2.70 |
| Round 9 | D.De Roos | M.Mestric – T.Brkljacic | Open | 10 | -10.7 | -1.07 | +1.90 |
| Round 10 | D.De Roos | M.Klukowski – J.Kalita | Closed | 10 | -30.1 | -3.01 | -6.00 |
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 |
|---|---|---|---|---|---|---|---|
| +11.5 | Round 7 | IRISH CHAMPIONS | 4 | 5♦ | ♦6 | -1 | +13 |
| +10.7 | Round 1 | BRIDGESCANNER | 10 | 4♥ | ♠K | -2 | +13 |
| +9.0 | Round 9 | JT2 | 10 | 3NT | ♥3 | = | +10 |
| +8.0 | Round 1 | BRIDGESCANNER | 7 | 1NTx | ♥2 | -2 | +8 |
| +7.8 | Round 6 | ESKOM WARSZAWA | 22 | 4♥ | ♦9 | -1 | +13 |
| +6.3 | Round 6 | ESKOM WARSZAWA | 23 | 3♦ | ♣J | = | +12 |
| +5.9 | Round 4 | BRIDGE ADDAURA ASD | 9 | 6♦ | ♣A | = | +7 |
| +5.2 | Round 1 | BRIDGESCANNER | 6 | 2♠ | ♦7 | -1 | +0 |
| +5.1 | Round 4 | BRIDGE ADDAURA ASD | 2 | 4♠ | ♥K | -2 | +12 |
| +4.8 | Round 3 | LOMBARD | 23 | 4♥x | ♠Q | -1 | +8 |
| +4.6 | Round 1 | BRIDGESCANNER | 1 | 5♣ | ♥A | -2 | +5 |
| +4.4 | Round 6 | ESKOM WARSZAWA | 25 | 4♠ | ♣A | = | +0 |
| +4.2 | Round 9 | JT2 | 8 | 3♦ | ♠Q | +1 | +8 |
| +4.0 | Round 1 | BRIDGESCANNER | 4 | 4♠ | ♣K | -1 | +6 |
| +3.8 | Round 10 | BRIDGE CONTACT CLUB | 12 | 3♠x | ♦K | -1 | +0 |
| +3.6 | Round 6 | ESKOM WARSZAWA | 28 | 2♠ | ♥A | +2 | +6 |
| +2.9 | Round 3 | LOMBARD | 30 | 3♦ | ♥K | +1 | +7 |
| +2.6 | Round 6 | ESKOM WARSZAWA | 30 | 4♠ | ♦8 | -2 | +6 |
| +2.5 | Round 6 | ESKOM WARSZAWA | 21 | 1NT | ♣3 | +3 | -2 |
| +2.3 | Round 1 | BRIDGESCANNER | 2 | 4♠ | ♣A | +1 | +0 |
| +2.2 | Round 10 | BRIDGE CONTACT CLUB | 13 | 3NT | ♥2 | +1 | -1 |
| +1.9 | Round 3 | LOMBARD | 26 | 1NT | ♣Q | = | -11 |
| +1.9 | Round 4 | BRIDGE ADDAURA ASD | 6 | 4♠ | ♣K | = | +0 |
| +1.7 | Round 6 | ESKOM WARSZAWA | 24 | 3♥ | ♠J | = | +0 |
| +1.5 | Round 3 | LOMBARD | 28 | 4♥ | ♠K | +2 | +11 |
| +1.0 | Round 7 | IRISH CHAMPIONS | 6 | 4♠ | ♣8 | +2 | +1 |
| +0.9 | Round 3 | LOMBARD | 27 | 6♥ | ♠T | = | +0 |
| +0.9 | Round 4 | BRIDGE ADDAURA ASD | 4 | 2♦ | ♥3 | +2 | +1 |
| +0.9 | Round 4 | BRIDGE ADDAURA ASD | 10 | 2♥ | ♣5 | +2 | -10 |
| +0.7 | Round 7 | IRISH CHAMPIONS | 9 | 1NT | ♦5 | +2 | -8 |
| +0.5 | Round 3 | LOMBARD | 22 | 1NT | ♣8 | -2 | -6 |
| +0.4 | Round 7 | IRISH CHAMPIONS | 8 | 4♥ | ♣Q | = | +0 |
| +0.2 | Round 3 | LOMBARD | 21 | 3♣ | ♣2 | = | +0 |
| +0.2 | Round 3 | LOMBARD | 24 | 2♣ | ♥A | -2 | +1 |
| +0.2 | Round 6 | ESKOM WARSZAWA | 26 | 4♥ | ♥3 | = | +0 |
| +0.1 | Round 1 | BRIDGESCANNER | 9 | 4♠ | ♦J | +1 | +13 |
| -0.0 | Round 7 | IRISH CHAMPIONS | 7 | 6♥ | ♠T | +1 | -13 |
| -0.1 | Round 3 | LOMBARD | 25 | 3♠ | ♦5 | = | +0 |
| -0.1 | Round 9 | JT2 | 2 | 3NT | ♠2 | = | +0 |
| -0.4 | Round 10 | BRIDGE CONTACT CLUB | 15 | 3NT | ♠J | +2 | -13 |
| -0.5 | Round 4 | BRIDGE ADDAURA ASD | 3 | 3NT | ♦6 | +1 | +0 |
| -0.5 | Round 6 | ESKOM WARSZAWA | 29 | 3NT | ♠K | = | -13 |
| -0.5 | Round 7 | IRISH CHAMPIONS | 10 | 3NT | ♠7 | = | +0 |
| -0.5 | Round 9 | JT2 | 3 | 3♥ | ♠2 | -2 | +1 |
| -0.5 | Round 9 | JT2 | 5 | 3NT | ♠5 | -1 | +8 |
| -0.9 | Round 7 | IRISH CHAMPIONS | 3 | 4♥ | ♦K | +2 | -1 |
| -1.2 | Round 1 | BRIDGESCANNER | 5 | 3♠ | ♥A | -1 | -5 |
| -1.3 | Round 10 | BRIDGE CONTACT CLUB | 20 | 3NT | ♥4 | +2 | -13 |
| -1.5 | Round 9 | JT2 | 6 | 5♠x | ♥A | -3 | -5 |
| -1.8 | Round 4 | BRIDGE ADDAURA ASD | 1 | 2♦ | ♥5 | +1 | +0 |
| -1.9 | Round 7 | IRISH CHAMPIONS | 2 | 3NT | ♥Q | = | -11 |
| -1.9 | Round 7 | IRISH CHAMPIONS | 5 | 4♠ | ♦7 | -2 | -6 |
| -2.1 | Round 10 | BRIDGE CONTACT CLUB | 14 | 3♦x | ♣9 | -2 | -3 |
| -2.2 | Round 7 | IRISH CHAMPIONS | 1 | 4♠ | ♣J | -3 | -2 |
| -2.5 | Round 9 | JT2 | 1 | 5♦ | ♥A | = | +0 |
| -3.0 | Round 9 | JT2 | 9 | 3NT | ♣T | -3 | -6 |
| -3.3 | Round 6 | ESKOM WARSZAWA | 27 | 6NT | ♥5 | +1 | -1 |
| -3.4 | Round 1 | BRIDGESCANNER | 8 | 3NT | ♣3 | +3 | -14 |
| -3.8 | Round 10 | BRIDGE CONTACT CLUB | 11 | 3♦ | ♠3 | -2 | -5 |
| -4.2 | Round 1 | BRIDGESCANNER | 3 | 3♠ | ♠J | = | -1 |
| -4.9 | Round 9 | JT2 | 4 | 4♠ | ♣7 | +2 | +13 |
| -5.1 | Round 10 | BRIDGE CONTACT CLUB | 17 | 3NT | ♠7 | -1 | -5 |
| -5.2 | Round 4 | BRIDGE ADDAURA ASD | 7 | 2♥ | ♦Q | -2 | -3 |
| -5.9 | Round 10 | BRIDGE CONTACT CLUB | 19 | 2♦ | ♠3 | +1 | -11 |
| -6.8 | Round 10 | BRIDGE CONTACT CLUB | 16 | 3NT | ♥6 | +1 | +0 |
| -9.3 | Round 4 | BRIDGE ADDAURA ASD | 8 | 5♣ | ♥K | -1 | -10 |
| -9.6 | Round 4 | BRIDGE ADDAURA ASD | 5 | 5♥ | ♠5 | +1 | -9 |
| -10.7 | Round 10 | BRIDGE CONTACT CLUB | 18 | 5♠ | ♦5 | -3 | -9 |
| -10.9 | Round 9 | JT2 | 7 | 3NT | ♥6 | = | -10 |
| -12.9 | Round 3 | LOMBARD | 29 | 4♦x | ♣T | -1 | -13 |