ROBERTSON Marion · BELL
222rank
-78.2Butler · 140 bds
-0.56per board
±5.0swing
-0.51vs par /bd · #175/240
-0.60adjusted /bd
by round
vs par split: bidding -0.14 · play -0.40
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted -0.60/bd
Card play — on target: opening leads 81.6% #74 of 239 · declarer play 64.7% #210 of 239 · defence 73.7% #232 of 240
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 81.8% (11) | 81.5% (27) |
| Declarer play | 46.2% (13) | 76.2% (21) |
| Defence | 68.2% (22) | 75.9% (54) |
Opening leads by suit led: ♠ 83.3% (12) · ♥ 87.5% (8) · ♦ 77.8% (9) · ♣ 77.8% (9)
vs par by strain: NT -0.25 (44) · a suit -0.67 (95)
vs par by level: part-score -0.74 (50) · game -1.10 (77) · slam +3.92 (12)
By role: declaring -0.52/bd (-2.98 vs par · 63) · defending -0.59/bd (+1.51 vs par · 77)
By vulnerability: vulnerable -0.55/bd (-0.87 vs par · 69) · not vulnerable -0.57/bd (-0.17 vs par · 71)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Bell | S.Mukherjee – B.Satyanarayana | Open | 10 | -14.3 | -1.43 | -3.70 |
| Round 2 | M.Bell | L.Lauria – A.Versace | Open | 10 | -2.7 | -0.27 | +0.20 |
| Round 3 | M.Bell | M.Macura – M.Schollaardt | Open | 10 | +14.4 | +1.44 | +1.00 |
| Round 4 | M.Bell | A.Pidal – M.Panadero | Open | 10 | -10.2 | -1.02 | -3.30 |
| Round 5 | M.Bell | T.Hanlon – M.Moran | Open | 10 | +5.8 | +0.58 | -0.20 |
| Round 6 | M.Bell | G.Hallberg – P.Bertheau | Open | 10 | -0.5 | -0.05 | -0.50 |
| Round 7 | M.Bell | E.Erichsen – S.Gillis | Open | 10 | +1.7 | +0.17 | +0.70 |
| Round 8 | M.Bell | I.Bareket – A.Lengy | Open | 10 | +4.8 | +0.48 | +0.60 |
| Round 9 | M.Bell | J.Romanski – R.Grzelak | Open | 10 | -13.5 | -1.35 | +1.80 |
| Round 10 | M.Bell | B.Combescure – J.Bernard | Open | 10 | -29.9 | -2.99 | -3.10 |
| Round 11 | M.Bell | W.Wang – SHEN (1) Qi | Open | 10 | -28.5 | -2.85 | -1.60 |
| Round 13 | M.Bell | J.Viennois – R.Hassan | Closed | 10 | -6.3 | -0.63 | +0.30 |
| Round 14 | M.Bell | D.Malakova – J.Harris | Closed | 10 | +33.8 | +3.38 | +1.60 |
| Round 15 | M.Bell | Y.Chumak – O.Rovyshyn | Open | 10 | -32.8 | -3.28 | -1.00 |
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 |
|---|---|---|---|---|---|---|---|
| +12.7 | Round 4 | GUTI | 9 | 3♠x | ♦3 | = | +13 |
| +10.5 | Round 14 | HARRIS | 18 | 6NT | ♦9 | -1 | +17 |
| +10.2 | Round 3 | NETHERLANDS BLUE | 26 | 4♥ | ♦4 | = | +0 |
| +9.9 | Round 8 | EMERALD | 14 | 3NT | ♣3 | -2 | +11 |
| +9.8 | Round 5 | MORAN | 16 | 6♥ | ♠J | -2 | +14 |
| +9.6 | Round 14 | HARRIS | 20 | 3NT | ♣7 | = | -1 |
| +8.8 | Round 7 | GILLIS | 7 | 6♦ | ♠5 | -1 | +16 |
| +8.4 | Round 14 | HARRIS | 14 | 3NT | ♥2 | +1 | +1 |
| +8.2 | Round 6 | BLACK | 23 | 4♠ | ♦2 | +2 | +11 |
| +7.3 | Round 14 | HARRIS | 13 | 1NT | ♠Q | = | +12 |
| +7.0 | Round 2 | VYTAS | 17 | Adj. | ♥K | +3 | |
| +6.8 | Round 7 | GILLIS | 10 | 4♥ | ♦7 | +3 | +17 |
| +6.7 | Round 3 | NETHERLANDS BLUE | 28 | 4♥ | ♣K | = | +7 |
| +6.3 | Round 5 | MORAN | 17 | 5♦ | ♠Q | -1 | +11 |
| +6.1 | Round 10 | FRANCE JUNIORS | 8 | 3NT | ♣5 | +1 | +7 |
| +5.9 | Round 6 | BLACK | 25 | 5♦ | ♥7 | -1 | -2 |
| +5.3 | Round 8 | EMERALD | 15 | 4♥ | ♦2 | -2 | +5 |
| +5.1 | Round 7 | GILLIS | 3 | 3♠ | ♥6 | = | +0 |
| +4.6 | Round 8 | EMERALD | 19 | 2♥ | ♠J | +2 | +6 |
| +4.3 | Round 2 | VYTAS | 14 | 3NT | ♥Q | -2 | +5 |
| +4.2 | Round 1 | FORMIDABLES | 3 | 3NT | ♥5 | = | -1 |
| +3.8 | Round 4 | GUTI | 7 | 3♠ | ♥2 | = | +0 |
| +3.8 | Round 9 | BRIDGE24PL B | 23 | 3NT | ♥Q | = | -1 |
| +3.6 | Round 9 | BRIDGE24PL B | 28 | 4♠ | ♥5 | = | +3 |
| +3.4 | Round 5 | MORAN | 20 | 4♥ | ♦J | +1 | -13 |
| +3.4 | Round 15 | NEVER CLAIM | 30 | 5♣x | ♠K | -1 | +5 |
| +3.1 | Round 4 | GUTI | 6 | 4♠ | ♥3 | = | +3 |
| +2.8 | Round 2 | VYTAS | 15 | 3NT | ♠7 | -4 | +3 |
| +2.6 | Round 14 | HARRIS | 15 | 4♥ | ♣Q | -1 | +0 |
| +2.5 | Round 6 | BLACK | 27 | 5♣ | ♥K | -1 | +4 |
| +2.5 | Round 13 | BRUNET | 5 | 4♥ | ♠3 | +1 | +0 |
| +2.4 | Round 3 | NETHERLANDS BLUE | 30 | 3NT | ♥2 | +1 | +0 |
| +2.2 | Round 6 | BLACK | 30 | 2NT | ♠9 | +1 | +2 |
| +2.1 | Round 3 | NETHERLANDS BLUE | 27 | 2♥ | ♣J | -2 | +0 |
| +2.0 | Round 14 | HARRIS | 17 | 3♦ | ♠9 | -2 | +5 |
| +1.9 | Round 2 | VYTAS | 11 | 4♥ | ♣A | -1 | +8 |
| +1.9 | Round 2 | VYTAS | 20 | 4♠ | ♣K | = | +0 |
| +1.9 | Round 11 | CHINA LADIES TEAM | 14 | 3NT | ♠6 | -2 | +6 |
| +1.9 | Round 13 | BRUNET | 9 | 2♠ | ♦2 | +3 | +6 |
| +1.8 | Round 14 | HARRIS | 12 | 1NT | ♦K | +1 | +0 |
| +1.7 | Round 2 | VYTAS | 16 | 2♥ | ♣4 | = | +5 |
| +1.6 | Round 1 | FORMIDABLES | 1 | 4♥ | ♦5 | -1 | +4 |
| +1.6 | Round 3 | NETHERLANDS BLUE | 23 | 6♠ | ♦7 | +1 | +13 |
| +1.5 | Round 1 | FORMIDABLES | 2 | 3NT | ♠10 | -3 | +6 |
| +1.5 | Round 4 | GUTI | 4 | 6♥ | ♦3 | = | +0 |
| +1.4 | Round 15 | NEVER CLAIM | 21 | 1NT | ♠2 | = | +0 |
| +1.3 | Round 10 | FRANCE JUNIORS | 6 | 5♦ | ♠6 | -2 | +5 |
| +1.1 | Round 10 | FRANCE JUNIORS | 7 | 2♦x | ♦J | = | +2 |
| +1.0 | Round 4 | GUTI | 2 | 5♣ | ♥6 | -1 | +6 |
| +0.9 | Round 2 | VYTAS | 12 | 2NT | ♥10 | +1 | +6 |
| +0.8 | Round 6 | BLACK | 22 | 1NT | ♦J | -1 | -5 |
| +0.7 | Round 13 | BRUNET | 4 | 4♥ | ♠3 | = | +1 |
| +0.6 | Round 5 | MORAN | 11 | 2NT | ♠3 | = | +0 |
| +0.6 | Round 6 | BLACK | 26 | 4♠ | ♣Q | = | +1 |
| +0.5 | Round 8 | EMERALD | 20 | 3NT | ♥3 | = | +2 |
| +0.4 | Round 7 | GILLIS | 1 | 4♠ | ♥A | +2 | -11 |
| +0.3 | Round 8 | EMERALD | 16 | 4♠ | ♥3 | = | +0 |
| +0.2 | Round 5 | MORAN | 15 | 4♠ | ♣6 | +1 | +0 |
| +0.2 | Round 9 | BRIDGE24PL B | 26 | 1NT | ♣6 | = | +1 |
| +0.1 | Round 13 | BRUNET | 7 | 1NT | ♥4 | = | +1 |
| -0.0 | Round 13 | BRUNET | 8 | 3♦ | ♦9 | +2 | +6 |
| -0.1 | Round 3 | NETHERLANDS BLUE | 24 | 4♠ | ♦3 | -1 | -4 |
| -0.1 | Round 8 | EMERALD | 17 | 3NT | ♥4 | +1 | +0 |
| -0.1 | Round 9 | BRIDGE24PL B | 27 | 3♣ | ♥Q | = | +0 |
| -0.1 | Round 13 | BRUNET | 10 | 4♥ | ♣K | = | +0 |
| -0.2 | Round 7 | GILLIS | 8 | 3♠ | ♠6 | -1 | +2 |
| -0.2 | Round 8 | EMERALD | 12 | 3♠ | ♥A | -2 | -6 |
| -0.2 | Round 8 | EMERALD | 18 | 3NT | ♠4 | +1 | +0 |
| -0.2 | Round 11 | CHINA LADIES TEAM | 17 | 3♠ | ♥K | -1 | -4 |
| -0.2 | Round 11 | CHINA LADIES TEAM | 20 | 3NT | ♠2 | +1 | +0 |
| -0.3 | Round 9 | BRIDGE24PL B | 22 | 4♠ | ♥8 | +2 | +13 |
| -0.4 | Round 9 | BRIDGE24PL B | 29 | 2♥ | ♣5 | +1 | +8 |
| -0.6 | Round 15 | NEVER CLAIM | 29 | 1NT | ♠6 | +1 | +1 |
| -0.7 | Round 7 | GILLIS | 6 | 3♣ | ♠7 | -3 | -2 |
| -0.7 | Round 15 | NEVER CLAIM | 24 | 5♥ | ♣A | = | +11 |
| -0.8 | Round 5 | MORAN | 12 | 1NT | ♠J | = | +0 |
| -0.9 | Round 1 | FORMIDABLES | 7 | 4♥ | ♣2 | = | -13 |
| -1.0 | Round 4 | GUTI | 8 | 2♠x | ♥Q | -1 | -7 |
| -1.0 | Round 5 | MORAN | 13 | 4♠x | ♣6 | -1 | -3 |
| -1.1 | Round 5 | MORAN | 14 | 3♣ | ♠3 | -1 | +3 |
| -1.1 | Round 11 | CHINA LADIES TEAM | 15 | 4♠ | ♦2 | +1 | +0 |
| -1.2 | Round 7 | GILLIS | 2 | 2♠ | ♣K | = | +0 |
| -1.2 | Round 11 | CHINA LADIES TEAM | 18 | 4♥ | ♦10 | = | +0 |
| -1.4 | Round 1 | FORMIDABLES | 5 | 1NT | ♣5 | -1 | -2 |
| -1.4 | Round 3 | NETHERLANDS BLUE | 25 | 3♥ | ♦Q | -1 | +0 |
| -1.4 | Round 9 | BRIDGE24PL B | 21 | 1NT | ♥5 | +1 | -5 |
| -1.4 | Round 11 | CHINA LADIES TEAM | 11 | 6♥ | ♠2 | = | +10 |
| -1.5 | Round 1 | FORMIDABLES | 6 | 3NT | ♥Q | +2 | -11 |
| -1.8 | Round 1 | FORMIDABLES | 8 | 4♥ | ♣3 | +1 | -1 |
| -1.8 | Round 13 | BRUNET | 6 | 3NT | ♠5 | +2 | +10 |
| -1.9 | Round 14 | HARRIS | 11 | 2♥ | ♠4 | +1 | -1 |
| -2.0 | Round 10 | FRANCE JUNIORS | 1 | 3NT | ♣10 | +2 | -1 |
| -2.1 | Round 3 | NETHERLANDS BLUE | 22 | 2♠ | ♠2 | -1 | -6 |
| -2.1 | Round 6 | BLACK | 21 | 2NT | ♣5 | -1 | +0 |
| -2.1 | Round 10 | FRANCE JUNIORS | 9 | 4♥ | ♣10 | +1 | +0 |
| -2.2 | Round 5 | MORAN | 18 | 4NT | ♦A | +2 | -1 |
| -2.3 | Round 3 | NETHERLANDS BLUE | 29 | 3♣ | ♣7 | = | +0 |
| -2.4 | Round 15 | NEVER CLAIM | 28 | 4♠ | ♦K | = | +0 |
| -2.5 | Round 13 | BRUNET | 1 | 4♥ | ♠Q | -1 | -4 |
| -2.7 | Round 1 | FORMIDABLES | 4 | 4♠ | ♥J | +1 | -1 |
| -2.7 | Round 3 | NETHERLANDS BLUE | 21 | 2NT | ♦5 | -2 | +0 |
| -2.7 | Round 4 | GUTI | 3 | 4♥ | ♠3 | +2 | -12 |
| -3.0 | Round 14 | HARRIS | 16 | 3♠ | ♠A | = | -7 |
| -3.2 | Round 10 | FRANCE JUNIORS | 10 | 3NT | ♣2 | -2 | -8 |
| -3.5 | Round 10 | FRANCE JUNIORS | 5 | 1NT | ♥Q | = | +0 |
| -3.5 | Round 13 | BRUNET | 3 | 3NT | ♦6 | -1 | -6 |
| -3.5 | Round 14 | HARRIS | 19 | 2NT | ♣2 | +2 | -10 |
| -3.6 | Round 13 | BRUNET | 2 | 4♥ | ♣6 | -1 | -11 |
| -3.7 | Round 15 | NEVER CLAIM | 23 | 3♠ | ♣K | = | +0 |
| -3.9 | Round 7 | GILLIS | 9 | 4♥ | ♣K | +1 | -4 |
| -4.1 | Round 9 | BRIDGE24PL B | 30 | 6♣ | ♥J | +1 | +10 |
| -4.2 | Round 1 | FORMIDABLES | 9 | 3♠ | ♦A | +2 | -6 |
| -4.2 | Round 15 | NEVER CLAIM | 27 | 4♠x | ♥K | -1 | -8 |
| -4.4 | Round 6 | BLACK | 24 | 3NT | ♣7 | +1 | -1 |
| -5.0 | Round 7 | GILLIS | 5 | 3♦ | ♥10 | +1 | -5 |
| -5.0 | Round 9 | BRIDGE24PL B | 25 | 6♦ | ♦A | -3 | -11 |
| -5.3 | Round 4 | GUTI | 10 | 4♠x | ♣4 | -1 | -7 |
| -5.5 | Round 6 | BLACK | 29 | 3♠ | ♦K | -2 | -8 |
| -5.6 | Round 2 | VYTAS | 13 | 5♠ | ♥Q | -1 | -7 |
| -5.6 | Round 15 | NEVER CLAIM | 22 | 2♠ | ♦J | = | -6 |
| -5.7 | Round 11 | CHINA LADIES TEAM | 12 | 3♣ | ♥8 | -2 | -5 |
| -5.8 | Round 11 | CHINA LADIES TEAM | 19 | 1♠ | ♦A | = | -9 |
| -6.1 | Round 10 | FRANCE JUNIORS | 4 | 3♣x | ♦K | -2 | -9 |
| -6.1 | Round 11 | CHINA LADIES TEAM | 13 | 4♥ | ♠A | -2 | -8 |
| -7.1 | Round 2 | VYTAS | 19 | 3NT | ♦7 | -1 | -10 |
| -7.3 | Round 8 | EMERALD | 11 | 4♥ | ♦Q | +1 | -14 |
| -7.8 | Round 15 | NEVER CLAIM | 25 | 5♦ | ♠A | = | +0 |
| -7.9 | Round 4 | GUTI | 5 | 6♦ | ♦5 | -1 | -11 |
| -8.0 | Round 8 | EMERALD | 13 | 7♣ | ♠J | = | +2 |
| -8.4 | Round 7 | GILLIS | 4 | 4♠ | ♣A | -1 | -6 |
| -8.7 | Round 6 | BLACK | 28 | 3NT | ♠2 | = | -7 |
| -8.7 | Round 11 | CHINA LADIES TEAM | 16 | 5♠ | ♦3 | = | -6 |
| -9.1 | Round 1 | FORMIDABLES | 10 | 4♠x | ♥4 | = | -12 |
| -9.4 | Round 5 | MORAN | 19 | 6♥ | ♥10 | -1 | -13 |
| -9.8 | Round 9 | BRIDGE24PL B | 24 | 7♠ | ♠5 | = | +0 |
| -10.5 | Round 2 | VYTAS | 18 | 4♥ | ♠5 | -2 | -11 |
| -10.6 | Round 10 | FRANCE JUNIORS | 2 | 4♠x | ♥4 | -5 | -13 |
| -10.9 | Round 10 | FRANCE JUNIORS | 3 | 3NT | ♣Q | -3 | -14 |
| -12.6 | Round 15 | NEVER CLAIM | 26 | 3♠x | ♣K | = | -13 |
| -15.4 | Round 4 | GUTI | 1 | 3NT | ♠5 | = | -18 |