Data 9Z20 Main |
| by Richard Pavlicek |
Table 1: 4-4 Major Table 2: 6-2 Major
A total of 14 cases occurred in 40,069 deals from 72 major events 1996-2014.
Cases with swings of 2+ IMPs are shown here, most recent first.
2014 USBC Semifinal, Segment 5 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 1 | A Q 9 7 5 3 J 9 7 3 10 A 10 | Lee West 4 AP Lead K A J 7 A | Katz North Dbl 2nd 10 3 2 K 8 | Hamman EAST Pass Pass 3rd 2 6 4 5 | Nickell South 1 4 4th 3 Q 6 5 | Levin West 2 4 Lead A 6 K 5 K 2 A J | Bramley North 2 4 2nd 4 3 3 4 6 3 10 K | Weinstein EAST Pass 3 AP 3rd 6 A 4 J 7 A 4 5 | Stansby South 1 Pass 4th 7 10 Q 2 8 5 5 8 | ||
6 2 6 A K J 9 8 7 5 Q 6 3 | 10 8 4 A K 10 2 6 4 2 8 7 5 | ||||||||||
Par +420 4 NS | K J Q 8 5 4 Q 3 K J 9 4 2 | ||||||||||
4 / 6-2 +10 | 4 / 6-2 10-0 | 4 S -1 | -50 | 4 N = | +420 |
2012 World Championship Qualifying, Round 6 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 2 | Q 8 7 3 A 5 J 10 8 3 K Q 10 | Meckstroth West Dbl Pass Lead A K A 6 3 2 | Zmudzinski North Rdbl 4 2nd 3 8 10 10 5 9 | Rodwell East 2 AP 3rd 5 9 2 7 A Q | Balicki SOUTH 1 2 4th 4 Q 7 2 6 J | Narkiewicz West Dbl Pass Lead A 6 2 5 Q 7 | Zia North Rdbl 4 2nd 3 8 3 9 10 4 | Buras East 3 AP 3rd 9 5 A K 3 Q | Hamman SOUTH 2 3 4th 4 Q 6 7 2 6 | ||
K 9 6 10 7 3 A K 6 2 A 8 4 | J 5 9 6 9 7 5 J 9 6 5 3 2 | ||||||||||
Par +620 4 South | A 10 4 2 K Q J 8 4 2 Q 4 7 | ||||||||||
4 / 6-2 +12 | 4 / 6-2 22-0 | 4 S -1 | -100 | 4 S = | +620 |
2012 World Championship Qualifying, Round 6 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 3 | Q 8 7 3 A 5 J 10 8 3 K Q 10 | Bertheau West Pass Pass Lead A K A 2 Q 6 | Madala North 2 4 2nd 3 8 10 10 5 J | Cullin East Pass AP 3rd 9 5 2 7 2 J | Bocchi SOUTH 1 2 4th 4 Q 7 2 K A | Sementa West Dbl AP Lead A 6 7 6 5 | Upmark North Rdbl 2nd 3 8 A Q 6 | Duboin East 3 3rd 9 7 10 5 J | Nystrom SOUTH 2 4 4th 4 Q 2 2 3 | ||
K 9 6 10 7 3 A K 6 2 A 8 4 | J 5 9 6 9 7 5 J 9 6 5 3 2 | ||||||||||
Par +620 4 South | A 10 4 2 K Q J 8 4 2 Q 4 7 | ||||||||||
4 / 6-2 +13 | 4 / 6-2 35-0 | 4 S -2 | -200 | 4 S +1 | +650 |
2010 USBC Semifinal, Segment 6 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 4 | K 10 K 10 8 4 K J 10 7 9 8 6 | Nickell West Pass Pass Pass AP Lead A 4 Q 4 9 A J 7 4 10 | Weinstein NORTH Pass 1 NT 3 3 2nd 6 8 2 7 K Q 7 3 8 J | Katz East Pass Pass Dbl Pass 3rd 10 Q 4 K 5 10 8 A K 3 | Levin South 1 2 Pass 4 4th J 3 6 5 5 6 9 2 5 6 | Martel West Pass AP Lead 6 7 4 K A 5 | Meckstroth NORTH 1 1 NT 2nd 10 5 7 9 Q 2 | Stansby East Pass Pass 3rd 3 A K J 10 K | Rodwell South 1 4 4th 4 8 5 9 6 A | ||
Q 7 7 2 Q 9 8 6 2 A 7 5 4 | 9 6 5 A J 6 5 3 K Q 10 3 2 | ||||||||||
Par +650 5 NS | A J 8 4 3 2 Q 9 5 3 A 4 J | ||||||||||
4 / 6-2 +12 | 4 / 6-2 47-0 | 4 S -1 | -100 | 4 S = | +620 |
2007 Vanderbilt Round of 16, Segment 3 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 5 | A Q 10 8 A Q J 9 3 2 9 8 7 | Kamil West 3 Pass AP Lead K 4 K A 8 A 2 5 | Rosenberg North 3 4 2nd 7 7 3 5 4 2 4 J | Fleisher East Pass Pass 3rd 7 10 J 4 9 3 K Q | Zia SOUTH Pass 3 NT 4 4th A K 8 9 8 6 10 | Weinstein West 3 Pass Pass Lead A K Q 8 3 2 | Bramley North Dbl 3 4 2nd 3 5 10 A 6 4 | Levin East 3 Pass AP 3rd J 4 K 6 10 10 | Feldman SOUTH Pass Pass 4 4th 7 8 9 8 K J | ||
J 7 6 10 J 4 K Q J 9 6 3 2 | K 2 8 7 6 4 A K Q 6 2 8 7 | ||||||||||
Par -100 4 × NS -1 | 9 5 4 3 K 5 10 5 3 A 10 5 4 | ||||||||||
4 / 4-4 +10 | 4 / 6-2 47-11 | 4 S = | +420 | 4 N -1 | -50 |
2004 Olympiad Quarterfinal, Segment 1 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 6 | 7 2 K J 9 2 Q 8 2 A Q 10 7 | Khan West Pass 2 Pass AP Lead 5 2 4 3 7 K 5 | Lauria NORTH 1 1 NT Pass 3 2nd A 5 6 7 A 4 6 | Jafer East Pass Dbl Pass Pass 3rd 8 K J 10 3 7 A | Versace South 1 Rdbl 2 4 4th 9 4 Q K 9 2 8 | Fantoni West Pass AP Lead 10 J 3 7 Q 8 4 A | Allana NORTH 1 1 NT 2nd J 4 5 5 3 3 7 8 | Nunes East Pass Pass 3rd Q 2 6 K 7 2 K 4 | Fazli South 1 4 4th A A 9 9 10 2 8 4 | ||
9 4 10 6 A J 10 7 3 6 5 4 3 | A 10 5 Q 8 3 K 5 K J 9 8 2 | ||||||||||
Par +140 3 NS | K Q J 8 6 3 A 7 5 4 9 6 4 | ||||||||||
4 / 6-2 +12 | 4 / 6-2 59-11 | 4 S -1 | -100 | 4 S = | +620 |
2004 Olympiad Quarterfinal, Segment 1 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 7 | K Q J 8 6 3 A 7 5 4 9 6 4 | Mesbur West Pass Pass Pass Lead 2 A 2 4 7 K 10 2 | Schollaardt North 1 2 4 2nd 4 8 5 6 A 9 Q 8 | Fitzgibbon East Pass Pass AP 3rd 5 6 K K 3 3 10 A | Drijver SOUTH 1 1 NT 2 4th 7 3 9 3 4 2 J 7 | Brink West Pass Pass Pass Lead 10 K J K 5 10 | McGann North 1 3 4 2nd J 4 9 6 9 Q | v.Prooijen East Pass Pass AP 3rd Q 2 7 3 A 10 | Hanlon SOUTH 1 1 NT 3 NT 4th A 5 A 2 8 4 | ||
A 10 5 Q 8 3 K 5 K J 9 8 2 | 9 4 10 6 A J 10 7 3 6 5 4 3 | ||||||||||
Par +140 3 NS | 7 2 K J 9 2 Q 8 2 A Q 10 7 | ||||||||||
4 / 4-4 +12 | 4 / 6-2 59-23 | 4 S = | +620 | 4 N -1 | -100 |
2003 Bermuda Bowl Quarterfinal, Segment 2 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 8 | A Q 10 8 K Q J 6 4 3 7 K 7 | Trendafilov WEST 1 3 Pass Lead K 9 10 A Q J 3 J 9 K 4 | Helgemo North 1 4 4 2nd 7 5 6 3 7 8 10 A Q 4 | Karaivanov East Pass Pass AP 3rd 3 K 4 2 2 10 5 7 9 2 | Helness South 1 4 4th A A 10 7 3 5 6 2 5 8 | Saelensminde WEST 1 Pass AP Lead 2 3 7 2 Q 10 K 4 9 A 8 5 | Gunev North Dbl 3 2nd 10 K 3 5 A 2 8 10 J 3 4 Q | Brogeland East Pass Pass 3rd A 4 A J 9 8 5 6 Q 2 K Q | Stamatov South 2 4 4th 7 J 4 7 5 3 6 8 6 7 9 6 | ||
7 5 K Q 9 8 4 A Q 8 6 5 3 | J 6 4 3 A 10 8 7 10 3 9 4 2 | ||||||||||
Par +420 4 NS | K 9 5 2 9 2 A J 6 5 2 J 10 | ||||||||||
4 / 4-4 +10 | 4 / 6-2 59-33 | 4 S = | +420 | 4 N -1 | -50 |
1998 Team Trials Semifinal, Segment 5 | 4 / 4-4 NS | 4 / 6-2 NS | |||||||||
Case 9 | A 7 6 4 A K Q 10 8 4 J 9 4 | Soloway West Pass Pass Lead 2 6 4 8 A 6 A 4 4 | Stansby North 1 4 2nd 4 2 10 9 7 J 3 9 8 | Hamman East Pass AP 3rd K A J K 2 Q 3 J 7 | Martel SOUTH Pass 1 4th A 5 K 3 J 6 2 3 7 | Lair West Pass Pass Pass Lead 10 4 A | Freeman North 1 3 4 2nd J 5 2 | Schwartz East 2 Pass AP 3rd Q J 4 | Nickell SOUTH Pass Dbl 3 NT 4th A 2 | ||
K Q 5 2 7 3 2 Q 10 8 2 8 2 | 10 9 5 K 9 7 6 3 A K 10 6 5 | ||||||||||
Par +140 3 NS | J 9 8 3 J 6 A J 5 4 Q 7 3 | ||||||||||
4 / 6-2 +11 | 4 / 6-2 70-33 | 4 S -2 | -100 | 4 N = | +420 |
Data 9Z20 Main | Top 4-4 Major vs 6-2 Major |
© 2014 Richard Pavlicek