All are in 3rd seat not-vulnerable.
Netherlands in the 2005 Worlds vs vulnerable:
3
♥
Netherlands was against USA 1. De Wijs’s 3
♥ opening saw Hamman overcalling 4NT for the minors, and Soloway bid 5
♣ down 2, -200. At the other table, Meckstroth opened 1
♦, raised Rodwell’s 1
♥ to 2, and Rodwell bid 4. Down 1, -50. So 6 Imps to Netherlands.
See board 18 in:
2005 Worlds
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In the US 2004 Team Trials, Welland had this vs vulnerable:
3
♦
After Welland’s 3
♦, and 3
♥ overcall by Ekeblad, Fallenius jumped to 5
♦ with 3-2-5-3, got doubled and Welland went for -1100. At the other table, it was only a 2
♦ opening, which got bumped to 4
♦ over the
♥ overcall and NS ended in 4
♥ making 6 (cold on the layout of 2-2 trumps, and 3-3 spades with finesse on). So 9 IMPs to Ekeblad.
See board 18 (again!) in:
2004 US Team Trials
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This is Fantoni in the 2006 Worlds vs not-vulnerable:
3
♠
After Fantoni’s 3
♠, Schwartz doubled and Willenken bid 3NT, down 3, -150. At the other table El Ahmadi opened 1
♠, ended in 2
♠, +140. No swing.
See board 11 in:
2006 Worlds
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Dating back a bit, here’s Huang in the 1996 Semi-Finals vs vulnerable:
3
♣
3
♣ went around to RHO (Mouiel) who doubled, passed out for down 1, -100. At the other table a 1
♣ opening found the 5-4
♦ fit, so then Mari-Bompis drove the hands to 5
♦, down 3. 2 IMPs for Taipei.
This is board 60 of the semi-finals, in one of the biggest books ever published on the World Championships.
So in general it seems somewhat random effects. To see the largest range of bids, check out expert four-of-a-major openings in 3rd seat white vs red. Top of the range is 9 tricks or so, while bottom is any excuse.
My study of preempts opposite passed hands show that a heavy preempt can be successful if it immediately puts the partnership in its most likely landing spot if partner has about 9 HCP and a flat hand. Given this, I don’t think the Welland bid was doing this with 3
♦ so I don’t recommend the heavy three-level preempt with five cards, though I do have admiration for the imagination to make this call.