BOSENBERG Christopher Henry · SOUTH AFRICA
37rank
+80.7Butler · 100 bds
+0.81per board
±4.1swing
+1.43vs par /bd · #6/466
+0.87adjusted /bd
by round
vs par split: bidding +1.41 · play +0.02
Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted +0.87/bd
Card play — on target: opening leads 86.2% #137 of 466 · declarer play 73.9% #201 of 466 · defence 80.0% #404 of 466
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 42.9% (7) | 100.0% (22) |
| Declarer play | 100.0% (6) | 64.7% (17) |
| Defence | 66.7% (15) | 85.0% (40) |
Opening leads by suit led: ♠ 100.0% (6) · ♥ 66.7% (6) · ♦ 87.5% (8) · ♣ 88.9% (9)
vs par by strain: NT +0.27 (30) · a suit +1.93 (70)
vs par by level: part-score +1.42 (41) · game +0.67 (48) · slam +4.82 (11)
By role: declaring +0.72/bd (-1.29 vs par · 45) · defending +0.88/bd (+3.65 vs par · 55)
By vulnerability: vulnerable +1.60/bd (+2.92 vs par · 51) · not vulnerable -0.02/bd (-0.12 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | N.Eber | S.Aal – A.Forfot | Closed | 10 | +20.0 | +2.00 | +3.20 |
| Round 2 | N.Eber | M.Barel – Y.Zack | Closed | 10 | -1.7 | -0.17 | -1.50 |
| Round 3 | N.Eber | T.Garvey – J.Carroll | Closed | 10 | +10.0 | +1.00 | +1.70 |
| Round 4 | N.Eber | E.Friedlander – I.Liran | Closed | 10 | -14.6 | -1.46 | -1.20 |
| Round 5 | N.Eber | T.Helness – G.Helgemo | Open | 10 | -16.0 | -1.60 | +0.30 |
| Round 6 | N.Eber | A.Oevervatn – J.Oevervatn | Closed | 10 | +37.2 | +3.72 | +4.70 |
| Round 7 | N.Eber | M.Ticha – R.Ritmeijer | Closed | 10 | +3.2 | +0.32 | +1.30 |
| Round 8 | N.Eber | B.Rydland – J.Bogen | Closed | 10 | +25.9 | +2.59 | +3.00 |
| Round 9 | N.Eber | Y.Khiuppenen – V.Kholomeev | Closed | 10 | +15.7 | +1.57 | +0.80 |
| Round 10 | N.Eber | L.Stern – L.Urman | Closed | 10 | +1.0 | +0.10 | +2.00 |
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 |
|---|---|---|---|---|---|---|---|
| +13.0 | Round 8 | TEAM FFFF | 16 | 3NT | ♥4 | +2 | +14 |
| +12.2 | Round 9 | KHYUPPENEN | 25 | 6♠ | ♦A | = | +0 |
| +10.2 | Round 6 | SALTEN RUNDT | 29 | 6♦ | ♠6 | = | -1 |
| +8.9 | Round 1 | RASEDYRA | 7 | 6♣ | ♥9 | -1 | +17 |
| +8.1 | Round 6 | SALTEN RUNDT | 22 | 3NT | ♦4 | -1 | +6 |
| +7.9 | Round 1 | RASEDYRA | 9 | 4♣ | ♠K | -3 | +11 |
| +7.5 | Round 8 | TEAM FFFF | 17 | 4♥ | ♦2 | -1 | +10 |
| +7.3 | Round 6 | SALTEN RUNDT | 28 | 6♠ | ♣A | -1 | +14 |
| +6.8 | Round 3 | IRELAND | 30 | 4♠ | ♦6 | = | +11 |
| +6.7 | Round 9 | KHYUPPENEN | 23 | 3♥ | ♣Q | +1 | +10 |
| +6.4 | Round 5 | MONACO | 13 | 4♠ | ♣K | +1 | +1 |
| +6.2 | Round 1 | RASEDYRA | 5 | 5♦x | ♥K | -3 | -5 |
| +6.0 | Round 2 | MCALLISTER | 15 | 4♦ | ♠5 | = | +7 |
| +5.9 | Round 10 | LEVY STERN | 4 | 6♠ | ♠6 | -1 | +13 |
| +5.3 | Round 6 | SALTEN RUNDT | 24 | 3NT | ♠6 | -2 | +5 |
| +5.3 | Round 8 | TEAM FFFF | 13 | 4♣ | ♠K | +1 | +15 |
| +5.3 | Round 9 | KHYUPPENEN | 29 | 4♠ | ♥2 | = | +3 |
| +4.6 | Round 6 | SALTEN RUNDT | 30 | 3♦ | ♣10 | -2 | +9 |
| +4.3 | Round 3 | IRELAND | 25 | 3NT | ♦3 | +1 | +0 |
| +3.9 | Round 9 | KHYUPPENEN | 26 | 4♠ | ♦6 | -3 | +10 |
| +3.8 | Round 7 | TEAM ORANGE RED | 7 | 3NT | ♥10 | -1 | +12 |
| +3.4 | Round 10 | LEVY STERN | 10 | 3♥ | ♦A | -1 | +6 |
| +3.0 | Round 7 | TEAM ORANGE RED | 8 | 6♠ | ♣Q | -1 | +13 |
| +2.8 | Round 8 | TEAM FFFF | 19 | 3NT | ♣4 | = | -1 |
| +2.6 | Round 3 | IRELAND | 21 | 3♠ | ♣J | -1 | +6 |
| +2.6 | Round 10 | LEVY STERN | 9 | 4♥ | ♦5 | +1 | +0 |
| +2.3 | Round 9 | KHYUPPENEN | 30 | 4♥ | ♣K | -1 | +4 |
| +2.0 | Round 3 | IRELAND | 28 | 3NT | ♥J | -1 | +5 |
| +1.8 | Round 3 | IRELAND | 24 | 4♣ | ♠A | = | +1 |
| +1.7 | Round 6 | SALTEN RUNDT | 23 | 2♠ | ♥A | +1 | +0 |
| +1.7 | Round 6 | SALTEN RUNDT | 25 | 5♦ | ♦4 | +2 | +0 |
| +1.7 | Round 8 | TEAM FFFF | 12 | 2♠ | ♥A | +2 | +1 |
| +1.5 | Round 5 | MONACO | 12 | 2♠ | ♥10 | = | +0 |
| +1.4 | Round 2 | MCALLISTER | 11 | 4♦ | ♥A | = | -7 |
| +1.4 | Round 7 | TEAM ORANGE RED | 6 | 4♥ | ♣2 | +1 | +0 |
| +1.3 | Round 1 | RASEDYRA | 2 | 5♣ | ♠4 | = | -1 |
| +1.3 | Round 2 | MCALLISTER | 13 | 1NT | ♠4 | +2 | +1 |
| +1.3 | Round 2 | MCALLISTER | 19 | 4♣ | ♦A | -1 | -1 |
| +1.2 | Round 7 | TEAM ORANGE RED | 9 | 3♣ | ♠A | +1 | +10 |
| +1.0 | Round 2 | MCALLISTER | 12 | 4♠ | ♥3 | = | -1 |
| +1.0 | Round 2 | MCALLISTER | 20 | 2♥ | ♣5 | -1 | +1 |
| +1.0 | Round 8 | TEAM FFFF | 14 | 1NT | ♥6 | -2 | +0 |
| +0.9 | Round 4 | PDC | 6 | 3NT | ♠2 | +1 | +1 |
| +0.9 | Round 8 | TEAM FFFF | 18 | 3NT | ♠Q | = | +0 |
| +0.8 | Round 4 | PDC | 1 | 3♦ | ♦A | -2 | +0 |
| +0.7 | Round 10 | LEVY STERN | 3 | 3NT | ♦6 | +2 | +0 |
| +0.6 | Round 10 | LEVY STERN | 6 | 4♠ | ♥A | +1 | +11 |
| +0.5 | Round 4 | PDC | 7 | 2♦x | ♦8 | -1 | -9 |
| +0.4 | Round 1 | RASEDYRA | 6 | 3♦ | ♣Q | +1 | +7 |
| +0.4 | Round 1 | RASEDYRA | 8 | 2♥ | ♣Q | -1 | +4 |
| +0.3 | Round 7 | TEAM ORANGE RED | 2 | 3NT | ♥8 | = | -1 |
| +0.2 | Round 2 | MCALLISTER | 17 | 3NT | ♣5 | +3 | -11 |
| +0.2 | Round 7 | TEAM ORANGE RED | 5 | 4♠ | ♣6 | +2 | -13 |
| +0.1 | Round 1 | RASEDYRA | 4 | 2♥ | ♥10 | +1 | +0 |
| +0.1 | Round 3 | IRELAND | 23 | 2NT | ♥Q | = | +0 |
| +0.1 | Round 10 | LEVY STERN | 1 | 4♠ | ♠3 | = | +0 |
| +0.0 | Round 4 | PDC | 10 | 1NT | ♦J | = | +0 |
| -0.0 | Round 5 | MONACO | 19 | 2♠ | ♥7 | -1 | +2 |
| -0.0 | Round 7 | TEAM ORANGE RED | 1 | 3NT | ♠5 | = | -2 |
| -0.1 | Round 1 | RASEDYRA | 1 | 2♦ | ♣K | +1 | -1 |
| -0.1 | Round 7 | TEAM ORANGE RED | 3 | 4♥ | ♠K | = | +0 |
| -0.2 | Round 10 | LEVY STERN | 2 | 4♦ | ♣7 | -1 | +5 |
| -0.3 | Round 5 | MONACO | 18 | 4♠ | ♣6 | -1 | +5 |
| -0.3 | Round 6 | SALTEN RUNDT | 21 | 4♥ | ♠7 | = | +0 |
| -0.3 | Round 9 | KHYUPPENEN | 24 | 1NT | ♣2 | -1 | -2 |
| -0.3 | Round 9 | KHYUPPENEN | 27 | 4♠ | ♠8 | +1 | +0 |
| -0.4 | Round 3 | IRELAND | 27 | 1NTx | ♥3 | -1 | +0 |
| -0.4 | Round 6 | SALTEN RUNDT | 26 | 3NT | ♦5 | +2 | +13 |
| -0.5 | Round 3 | IRELAND | 29 | 3NT | ♦6 | = | +1 |
| -0.7 | Round 5 | MONACO | 15 | 2♥ | ♦5 | +1 | +7 |
| -0.7 | Round 7 | TEAM ORANGE RED | 10 | 3♥ | ♣A | -1 | -1 |
| -0.8 | Round 4 | PDC | 2 | 4♥ | ♦4 | = | +3 |
| -0.9 | Round 1 | RASEDYRA | 10 | 4♦ | ♠A | = | +0 |
| -1.0 | Round 4 | PDC | 8 | 2♠ | ♣10 | -1 | -9 |
| -1.0 | Round 6 | SALTEN RUNDT | 27 | 3♣ | ♥J | = | +1 |
| -1.7 | Round 4 | PDC | 5 | 2♠ | ♥K | -1 | +0 |
| -1.8 | Round 8 | TEAM FFFF | 20 | 4♥ | ♣5 | -1 | +1 |
| -2.0 | Round 2 | MCALLISTER | 18 | 6♦ | ♠K | +1 | +11 |
| -2.0 | Round 4 | PDC | 3 | 5♣ | ♦5 | -1 | -5 |
| -2.0 | Round 5 | MONACO | 11 | 4♥ | ♠4 | +1 | +0 |
| -2.1 | Round 10 | LEVY STERN | 7 | 6♥ | ♦2 | = | +0 |
| -2.2 | Round 8 | TEAM FFFF | 11 | 4♥ | ♠A | -1 | -10 |
| -2.3 | Round 8 | TEAM FFFF | 15 | 2♠ | ♦9 | = | +0 |
| -2.4 | Round 9 | KHYUPPENEN | 21 | 1NT | ♥3 | -1 | -4 |
| -2.7 | Round 5 | MONACO | 14 | 3♦ | ♥10 | -2 | +0 |
| -2.8 | Round 3 | IRELAND | 26 | 2♦ | ♥7 | +1 | -6 |
| -3.2 | Round 2 | MCALLISTER | 16 | 3NT | ♥2 | +3 | -1 |
| -3.2 | Round 5 | MONACO | 17 | 4♠ | ♦10 | +1 | +0 |
| -3.6 | Round 5 | MONACO | 20 | 3NT | ♦9 | = | +0 |
| -3.9 | Round 3 | IRELAND | 22 | 1NTx | ♣7 | -1 | -1 |
| -4.2 | Round 1 | RASEDYRA | 3 | 6NT | ♠J | = | +0 |
| -4.6 | Round 10 | LEVY STERN | 8 | 3NT | ♥Q | -1 | -10 |
| -5.0 | Round 4 | PDC | 4 | 5♠x | ♣A | -2 | +7 |
| -5.4 | Round 10 | LEVY STERN | 5 | 5♣x | ♣5 | -4 | -5 |
| -5.5 | Round 9 | KHYUPPENEN | 28 | 6♠ | ♠J | = | +0 |
| -5.9 | Round 7 | TEAM ORANGE RED | 4 | 1NT | ♦4 | -1 | -5 |
| -6.2 | Round 9 | KHYUPPENEN | 22 | 5♦ | ♥5 | -2 | -13 |
| -6.3 | Round 4 | PDC | 9 | 3NT | ♣5 | +1 | +0 |
| -8.7 | Round 2 | MCALLISTER | 14 | 6♣ | ♠K | -1 | -14 |
| -11.4 | Round 5 | MONACO | 16 | 3NT | ♦6 | +1 | -12 |