OSGOOD Jonathan · MOSTYN
472rank
-51.6Butler · 100 bds
-0.52per board
±4.5swing
+0.01vs par /bd · #283/553
-0.55adjusted /bd
by round
vs par split: bidding +0.75 · play -0.74
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted -0.55/bd
Card play — on target: opening leads 73.1% #431 of 551 · declarer play 50.0% #539 of 551 · defence 78.3% #478 of 553
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 72.2% (18) |
| Declarer play | 50.0% (6) | 50.0% (18) |
| Defence | 82.4% (17) | 76.7% (43) |
Opening leads by suit led: ♠ 40.0% (5) · ♥ 87.5% (8) · ♦ 83.3% (6) · ♣ 71.4% (7)
vs par by strain: NT +0.45 (29) · a suit -0.17 (71)
vs par by level: part-score -0.41 (34) · game -0.33 (55) · slam +3.00 (11)
By role: declaring -0.46/bd (-2.70 vs par · 40) · defending -0.55/bd (+1.82 vs par · 60)
By vulnerability: vulnerable -0.95/bd (-0.30 vs par · 50) · not vulnerable -0.08/bd (+0.32 vs par · 50)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Mostyn | M.Puczynski – K.Araszkiewicz | Open | 10 | -24.0 | -2.40 | -0.20 |
| Round 2 | S.Mostyn | H.Bertens – J.Cremin | Closed | 10 | +9.6 | +0.96 | +0.50 |
| Round 3 | S.Mostyn | S.Ekenberg – G.Andersson | Open | 10 | +3.2 | +0.32 | -0.10 |
| Round 4 | S.Mostyn | F.Hinden – G.Osborne | Open | 10 | +14.1 | +1.41 | +2.60 |
| Round 5 | S.Mostyn | R.Tembouret – N.Lhuissier | Closed | 10 | +10.3 | +1.03 | +3.00 |
| Round 6 | S.Mostyn | W.Starkowski – S.Golebiowski | Open | 10 | -17.3 | -1.73 | -0.40 |
| Round 7 | S.Mostyn | K.Martens – F.Multon | Closed | 10 | -23.5 | -2.35 | -2.00 |
| Round 8 | S.Mostyn | E.Ates – C.Tuncok | Open | 10 | -20.1 | -2.01 | -3.50 |
| Round 9 | S.Mostyn | J.Stamatov – D.Danailov | Open | 10 | -7.9 | -0.79 | -1.40 |
| Round 10 | S.Mostyn | S.Hinge – A.Mill | Open | 10 | +4.0 | +0.40 | +1.60 |
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 |
|---|---|---|---|---|---|---|---|
| +11.4 | Round 5 | FILIPPO5 | 18 | 6♥ | ♥5 | -1 | +12 |
| +11.1 | Round 4 | BADGER C | 7 | 6♣ | ♥3 | -2 | +13 |
| +8.0 | Round 3 | GAGGS | 29 | 4♥x | ♠6 | = | +7 |
| +7.4 | Round 9 | HARRIS | 25 | 4♠x | ♥A | -1 | +8 |
| +7.2 | Round 5 | FILIPPO5 | 11 | 3NT | ♠9 | -2 | +11 |
| +6.5 | Round 2 | CREMIN | 13 | 6♠ | ♦2 | = | +0 |
| +6.5 | Round 9 | HARRIS | 24 | 5♥x | ♠J | -1 | +13 |
| +5.8 | Round 10 | UP NORTH DOWN UNDER | 7 | 4♥ | ♠10 | -2 | +7 |
| +5.5 | Round 1 | CONNECTOR | 2 | 5♠x | ♥4 | = | +5 |
| +5.1 | Round 7 | ZIMMERMANN | 2 | 4♠x | ♥K | -2 | +2 |
| +5.0 | Round 5 | FILIPPO5 | 20 | 4♥ | ♠6 | -1 | +13 |
| +4.7 | Round 8 | CESS | 16 | 3♣ | ♦J | +2 | -10 |
| +4.5 | Round 2 | CREMIN | 16 | 3♣x | ♦A | -1 | +6 |
| +4.4 | Round 2 | CREMIN | 17 | 3♦ | ♣10 | -4 | +3 |
| +4.2 | Round 9 | HARRIS | 23 | 6♦ | ♠10 | = | +0 |
| +3.2 | Round 2 | CREMIN | 20 | 2♠x | ♥Q | -1 | +3 |
| +3.0 | Round 4 | BADGER C | 3 | 4♠ | ♦K | +2 | +11 |
| +2.9 | Round 4 | BADGER C | 9 | 5♦ | ♠7 | -1 | +10 |
| +2.8 | Round 4 | BADGER C | 5 | 2♠ | ♣4 | +2 | +1 |
| +2.7 | Round 7 | ZIMMERMANN | 8 | 4♥ | ♥J | = | +0 |
| +2.7 | Round 8 | CESS | 13 | 3NT | ♠Q | +1 | +0 |
| +2.7 | Round 10 | UP NORTH DOWN UNDER | 10 | 4♠ | ♥6 | -2 | +7 |
| +2.6 | Round 4 | BADGER C | 6 | 2♥ | ♦3 | -4 | +3 |
| +2.6 | Round 8 | CESS | 11 | 6♥ | ♣A | +1 | +11 |
| +2.6 | Round 10 | UP NORTH DOWN UNDER | 9 | 3♦ | ♠K | = | +6 |
| +2.4 | Round 3 | GAGGS | 28 | 4♠ | ♦3 | = | +0 |
| +2.1 | Round 5 | FILIPPO5 | 19 | 3♠ | ♥A | -3 | +2 |
| +1.8 | Round 6 | MAZURKIEWICZ | 21 | 2♠ | ♥A | -1 | +0 |
| +1.8 | Round 7 | ZIMMERMANN | 5 | 3NT | ♠6 | +2 | +1 |
| +1.7 | Round 3 | GAGGS | 21 | 2♥ | ♦K | +1 | +0 |
| +1.6 | Round 1 | CONNECTOR | 10 | 3NT | ♠A | -2 | -2 |
| +1.5 | Round 1 | CONNECTOR | 8 | 5♣ | ♥8 | +1 | +11 |
| +1.3 | Round 3 | GAGGS | 30 | 3♠ | ♥Q | -1 | +4 |
| +1.3 | Round 4 | BADGER C | 2 | 1NT | ♣9 | = | +11 |
| +1.2 | Round 5 | FILIPPO5 | 13 | 4♠ | ♠5 | = | -1 |
| +1.0 | Round 1 | CONNECTOR | 4 | 3NT | ♠5 | +3 | +12 |
| +0.9 | Round 2 | CREMIN | 11 | 4♠ | ♦5 | +1 | +0 |
| +0.8 | Round 5 | FILIPPO5 | 17 | 3♦ | ♣5 | -2 | -1 |
| +0.8 | Round 10 | UP NORTH DOWN UNDER | 4 | 3NT | ♠3 | +3 | +1 |
| +0.8 | Round 10 | UP NORTH DOWN UNDER | 5 | 3NT | ♣6 | +1 | -1 |
| +0.7 | Round 7 | ZIMMERMANN | 4 | 3NT | ♦10 | = | +1 |
| +0.6 | Round 10 | UP NORTH DOWN UNDER | 1 | 6NT | ♦3 | = | +11 |
| +0.1 | Round 2 | CREMIN | 18 | 2♣ | ♠5 | -1 | +0 |
| +0.1 | Round 3 | GAGGS | 27 | 2♠ | ♥J | +2 | +7 |
| +0.1 | Round 6 | MAZURKIEWICZ | 24 | 3NT | ♠6 | +1 | -1 |
| +0.1 | Round 6 | MAZURKIEWICZ | 29 | 2♥ | ♣2 | +4 | +13 |
| +0.1 | Round 10 | UP NORTH DOWN UNDER | 6 | 4♥ | ♣6 | = | -1 |
| +0.0 | Round 2 | CREMIN | 12 | 3NT | ♦K | = | -1 |
| -0.1 | Round 9 | HARRIS | 27 | 4♥ | ♣6 | +1 | +0 |
| -0.2 | Round 2 | CREMIN | 14 | 1NT | ♥7 | +1 | +0 |
| -0.2 | Round 4 | BADGER C | 10 | 4♠ | ♥5 | = | +0 |
| -0.2 | Round 6 | MAZURKIEWICZ | 28 | 3NT | ♠9 | +1 | +0 |
| -0.3 | Round 8 | CESS | 19 | 1NT | ♥2 | +2 | +7 |
| -0.4 | Round 7 | ZIMMERMANN | 3 | 1NT | ♣3 | = | +0 |
| -0.6 | Round 6 | MAZURKIEWICZ | 25 | 4♥ | ♠K | +2 | +8 |
| -0.8 | Round 3 | GAGGS | 26 | 2♦ | ♥A | -1 | -1 |
| -0.9 | Round 6 | MAZURKIEWICZ | 23 | 4♥ | ♣10 | -1 | -12 |
| -1.3 | Round 6 | MAZURKIEWICZ | 27 | 3NT | ♥9 | +2 | -1 |
| -1.4 | Round 4 | BADGER C | 8 | 5♥x | ♠3 | -4 | -12 |
| -1.4 | Round 5 | FILIPPO5 | 14 | 4NT | ♣J | +1 | +11 |
| -1.5 | Round 3 | GAGGS | 24 | 3NT | ♥2 | = | -1 |
| -1.5 | Round 8 | CESS | 15 | 1NT | ♣2 | = | -5 |
| -1.6 | Round 9 | HARRIS | 29 | 3NT | ♠3 | +2 | -1 |
| -1.7 | Round 3 | GAGGS | 23 | 2♦ | ♠7 | +2 | +0 |
| -1.7 | Round 10 | UP NORTH DOWN UNDER | 2 | 3NT | ♥6 | -1 | -1 |
| -2.0 | Round 1 | CONNECTOR | 1 | 6♠ | ♥10 | = | +0 |
| -2.0 | Round 1 | CONNECTOR | 7 | 3NT | ♣3 | +3 | -2 |
| -2.1 | Round 3 | GAGGS | 25 | 3♥ | ♠J | -1 | -5 |
| -2.1 | Round 10 | UP NORTH DOWN UNDER | 8 | 5♥ | ♦A | -4 | -3 |
| -2.2 | Round 2 | CREMIN | 15 | 2♠ | ♥J | +1 | +0 |
| -2.2 | Round 5 | FILIPPO5 | 15 | 1NT | ♣4 | -2 | +0 |
| -2.3 | Round 8 | CESS | 12 | 5♠x | ♣J | -1 | -5 |
| -2.5 | Round 6 | MAZURKIEWICZ | 30 | 4♥ | ♦9 | -2 | -11 |
| -2.5 | Round 9 | HARRIS | 21 | 4♠ | ♦A | -1 | -6 |
| -2.5 | Round 9 | HARRIS | 28 | 3♥ | ♠K | = | -6 |
| -2.8 | Round 4 | BADGER C | 1 | 1NT | ♣7 | = | -5 |
| -2.8 | Round 8 | CESS | 17 | 1NT | ♥A | -1 | -4 |
| -3.5 | Round 9 | HARRIS | 30 | 4♠ | ♦K | = | +0 |
| -3.6 | Round 5 | FILIPPO5 | 16 | 3♥ | ♦6 | -1 | -6 |
| -4.1 | Round 6 | MAZURKIEWICZ | 22 | 4♠ | ♦7 | = | +0 |
| -4.2 | Round 3 | GAGGS | 22 | 3NT | ♣5 | -1 | -12 |
| -4.2 | Round 7 | ZIMMERMANN | 9 | 2♦x | ♠4 | -1 | -2 |
| -4.8 | Round 8 | CESS | 14 | 4♦ | ♦2 | -1 | -8 |
| -4.9 | Round 7 | ZIMMERMANN | 1 | 4♥ | ♦10 | = | +0 |
| -5.2 | Round 4 | BADGER C | 4 | 2♠ | ♥6 | +1 | -6 |
| -5.6 | Round 10 | UP NORTH DOWN UNDER | 3 | 5♣ | ♥3 | -1 | -10 |
| -5.7 | Round 1 | CONNECTOR | 5 | 6♠ | ♦A | = | -12 |
| -6.0 | Round 1 | CONNECTOR | 6 | 6♠ | ♥5 | +1 | -1 |
| -6.2 | Round 9 | HARRIS | 22 | 5♣x | ♠9 | -2 | -9 |
| -7.3 | Round 1 | CONNECTOR | 9 | 6♦ | ♣5 | +1 | -1 |
| -7.6 | Round 2 | CREMIN | 19 | 3NT | ♣J | = | -6 |
| -7.7 | Round 7 | ZIMMERMANN | 10 | 4♥ | ♦4 | -1 | -12 |
| -7.8 | Round 7 | ZIMMERMANN | 7 | 4♠ | ♣K | = | +0 |
| -8.8 | Round 7 | ZIMMERMANN | 6 | 4♣ | ♦K | +1 | -10 |
| -9.0 | Round 8 | CESS | 20 | 3NT | ♠3 | +1 | -10 |
| -9.4 | Round 8 | CESS | 18 | 5♠x | ♦K | = | -11 |
| -9.6 | Round 9 | HARRIS | 26 | 4♥ | ♠K | +1 | -13 |
| -9.7 | Round 6 | MAZURKIEWICZ | 26 | 6♥ | ♥5 | = | +0 |
| -10.2 | Round 5 | FILIPPO5 | 12 | 3♥ | ♣2 | -2 | -11 |
| -10.6 | Round 1 | CONNECTOR | 3 | 5♥ | ♠10 | -4 | -12 |