SCHAFFER Barry · FELDMAN
171rank
-24.8Butler · 60 bds
-0.41per board
±3.9swing
-0.89adjusted /bd
by round
Strength of schedule: opponents averaged -0.48/bd (an easy draw) → opponent-adjusted -0.89/bd
By role: declaring -0.46/bd (28) · defending -0.38/bd (32)
By vulnerability: not vulnerable -0.41/bd (60)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | L.Feldman | S.Weyand – J.Carbonneaux | Open | 10 | -12.1 | -1.21 | · |
| Round 2 | L.Feldman | H.Kahlenberg – D.Morgen | Closed | 10 | +24.8 | +2.48 | · |
| Round 3 | L.Feldman | X.Wang – Y.Wang | Closed | 10 | +5.0 | +0.50 | · |
| Round 4 | L.Reich | B.Saurer – D.Fischer | Closed | 10 | -18.1 | -1.81 | · |
| Round 5 | L.Reich | D.Berkowitz – L.Berkowitz | Closed | 10 | -10.5 | -1.05 | · |
| Round 7 | L.Reich | W.Wang – Y.Liu | Closed | 10 | -13.9 | -1.39 | · |
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 |
|---|---|---|---|---|---|---|---|
| +10.1 | Round 2 | KAHLENBERG | 12 | 6♥ | ♠A | -1 | · |
| +8.2 | Round 3 | BEIJING TRINERGY | 22 | 3N | ♥Q | -3 | · |
| +8.0 | Round 2 | KAHLENBERG | 13 | 4♠ | ♣K | -2 | · |
| +6.7 | Round 3 | BEIJING TRINERGY | 24 | 5♣x | ♦5 | = | · |
| +6.1 | Round 5 | MELTZER | 19 | 2♣x | ♥8 | = | · |
| +5.0 | Round 4 | INDIA ALIZEE | 8 | 4♥ | ♣2 | = | · |
| +4.2 | Round 2 | KAHLENBERG | 14 | 2♦ | ♠Q | = | · |
| +3.9 | Round 2 | KAHLENBERG | 20 | 2♥ | ♠4 | +1 | · |
| +3.9 | Round 7 | PIN AN | 10 | 3N | ♥7 | -2 | · |
| +3.3 | Round 1 | NICE GIRLS | 6 | 3♥ | ♣2 | +1 | · |
| +3.0 | Round 5 | MELTZER | 13 | 3N | ♥8 | -2 | · |
| +2.4 | Round 4 | INDIA ALIZEE | 4 | 2♠ | ♣J | +1 | · |
| +2.1 | Round 7 | PIN AN | 9 | 4♠ | ♣3 | +1 | · |
| +1.8 | Round 2 | KAHLENBERG | 15 | 3N | ♠5 | -2 | · |
| +1.6 | Round 3 | BEIJING TRINERGY | 27 | 2♠ | ♦5 | = | · |
| +1.3 | Round 7 | PIN AN | 8 | 2N | ♣5 | +2 | · |
| +0.9 | Round 7 | PIN AN | 5 | 4♠ | ♦K | +1 | · |
| +0.8 | Round 1 | NICE GIRLS | 10 | 4♥ | ♠3 | +1 | · |
| +0.8 | Round 3 | BEIJING TRINERGY | 28 | 2♠ | ♣7 | +2 | · |
| +0.7 | Round 3 | BEIJING TRINERGY | 21 | 2♠ | ♦T | -1 | · |
| +0.6 | Round 4 | INDIA ALIZEE | 3 | 3N | ♥T | -1 | · |
| +0.5 | Round 2 | KAHLENBERG | 11 | 3♣ | ♥K | +1 | · |
| +0.4 | Round 1 | NICE GIRLS | 2 | 2N | ♦2 | = | · |
| +0.1 | Round 5 | MELTZER | 17 | 3N | ♦6 | +2 | · |
| +0.0 | Round 3 | BEIJING TRINERGY | 30 | 4♠ | ♥A | +1 | · |
| -0.2 | Round 2 | KAHLENBERG | 16 | 3♥ | ♦K | +1 | · |
| -0.2 | Round 3 | BEIJING TRINERGY | 25 | 4♦ | ♥4 | -1 | · |
| -0.3 | Round 1 | NICE GIRLS | 1 | 4♥ | ♣3 | +1 | · |
| -0.4 | Round 7 | PIN AN | 3 | 3N | ♥3 | +1 | · |
| -0.5 | Round 2 | KAHLENBERG | 17 | 4♥ | ♦Q | = | · |
| -0.9 | Round 2 | KAHLENBERG | 19 | 3♠x | ♣K | -2 | · |
| -1.2 | Round 4 | INDIA ALIZEE | 10 | 4♠ | ♥Q | +2 | · |
| -1.2 | Round 5 | MELTZER | 12 | 1N | ♦2 | -1 | · |
| -1.2 | Round 5 | MELTZER | 20 | 4♠ | ♦4 | +1 | · |
| -1.3 | Round 5 | MELTZER | 14 | 3♣ | ♠Q | +1 | · |
| -1.3 | Round 5 | MELTZER | 15 | 2♣ | ♦K | = | · |
| -1.4 | Round 7 | PIN AN | 1 | 4♠ | ♦2 | -2 | · |
| -1.5 | Round 1 | NICE GIRLS | 3 | 1N | ♣3 | = | · |
| -1.6 | Round 5 | MELTZER | 18 | 4♥ | ♠5 | +2 | · |
| -1.7 | Round 1 | NICE GIRLS | 5 | 4♥ | ♠7 | -2 | · |
| -1.7 | Round 1 | NICE GIRLS | 8 | 4♦ | ♥3 | -2 | · |
| -1.9 | Round 7 | PIN AN | 2 | 3N | ♦4 | = | · |
| -2.1 | Round 2 | KAHLENBERG | 18 | 2♣ | ♠Q | -3 | · |
| -2.9 | Round 4 | INDIA ALIZEE | 6 | 3♠ | ♦3 | -1 | · |
| -3.0 | Round 4 | INDIA ALIZEE | 7 | 3N | ♠3 | = | · |
| -3.1 | Round 1 | NICE GIRLS | 4 | 4♠ | ♣9 | = | · |
| -3.1 | Round 3 | BEIJING TRINERGY | 26 | 3N | ♦5 | +3 | · |
| -3.2 | Round 4 | INDIA ALIZEE | 2 | 2♦x | ♠3 | -1 | · |
| -3.4 | Round 3 | BEIJING TRINERGY | 29 | 3♥ | ♠9 | = | · |
| -3.6 | Round 7 | PIN AN | 6 | 3N | ♠4 | -1 | · |
| -3.8 | Round 1 | NICE GIRLS | 9 | 3N | ♣5 | +3 | · |
| -4.5 | Round 1 | NICE GIRLS | 7 | 3N | ♥J | +1 | · |
| -4.6 | Round 4 | INDIA ALIZEE | 1 | 4♥ | ♠2 | +2 | · |
| -4.7 | Round 5 | MELTZER | 16 | 3N | ♠Q | +2 | · |
| -4.8 | Round 4 | INDIA ALIZEE | 9 | 4♥ | ♠5 | = | · |
| -4.9 | Round 7 | PIN AN | 7 | 4♣ | ♠2 | +1 | · |
| -6.3 | Round 3 | BEIJING TRINERGY | 23 | 3N | ♦7 | -3 | · |
| -6.4 | Round 4 | INDIA ALIZEE | 5 | 2♥ | ♣K | +3 | · |
| -8.4 | Round 5 | MELTZER | 11 | 4♠ | ♥T | = | · |
| -9.9 | Round 7 | PIN AN | 4 | 4♥ | ♠6 | = | · |