Aggregating logic, intelligence and odds...

Competitive Advantage

Partscore Competitive

Opps' Contract Alternative
Contract Score Contract Not DBL DBL
1/1 70 minus 1 50 100
1/1 80
1NT 90
2/2 90
2/2 110 minus 2 100 300
2NT 120
3/3 110
4/4 130
3/3 140 minus 3 150 500
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
1/1 70 minus 1 100 200
1/1 80
1NT 90
2/2 90
2/2 110 minus 1 100 200
2NT 120
3/3 110
4/4 130
3/3 140 minus 1 100 200

Summary: Partscore only allow to go "minus 1" for competitive advantage. If you are not vulnerable, you can go to "minus 2". However do not get DOUBLED!

Game Competitive

Opps' Contract Alternative
Contract Score Contract Not DBL DBL
3NT 400
minus-2 100 300
minus-3 150 500
minus-4 200 800
...  
minus-8 400  
minus-9 450  
5/5 400
4/4 420
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
3NT 600
minus-2 100 300
minus-3 150 500
minus-4 200 800
...  
minus-10 500  
minus-11 550  
5/5 600
4/4 620
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
3NT 400
minus-1 100 200
minus-2 200 500
minus-3 300 800
minus-4 400  
minus-5 500  
5/5 400
4/4 420
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
3NT 600
minus-2 200 500
minus-3 300 800
...  
minus-6 600  
minus-7 550  
5/5 600
4/4 620

Summary:

  • We are NV vs Vul Opps
    • If Not Doubled:can have no trick but still ahead
    • If Doubled: minus-3
  • We are NV vs NV Opps
    • If Not Doubled: minus-8
    • If Doubled: minus-2
  • We are Vul vs Vul Opps
    • If Not Doubled: minus-6
    • If Doubled: minus-2
  • We are Vul vs NV Opps
    • If Not Doubled: minus-4
    • If Doubled: minus-1

Slam Competitive

Opps' Contract Alternative
Contract Score Contract Not DBL DBL
6/6 920
minus-4 200 800
minus-5 250 1100
...  
minus-12 600  
6/6 980
6NT 990
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
6/6 1370
minus-6 300 1400
minus-7 350 1700
...  
minus-12 600  
6/6 1430
6NT 1440
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
6/6 920
minus-3 300 800
minus-4 400 1100
...  
minus-9 900  
6/6 980
6NT 990
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
6/6 1370
minus-5 500 1400
minus-6 600 1700
...  
minus-12 1200  
6/6 1430
6NT 1440

Summary:

  • If you are not doubled, you just need 3 tricks for Vul vs NV - the rest you can lose all the trick and still ahead.
  • If you are doubled:
    • We are NV vs Vul Opps: max. minus-6
    • We are Vul vs Vul Opps: max. minus-5
    • We are NV vs NV Opps: max. minus-4
    • We are Vul vs NV Opps: max. minus-3

Grandslam Competitive

Opps' Contract Alternative
Contract Score Contract Not DBL DBL
7/7 1440
minus-6 300 1400
minus-7 350 1700
...  
minus-13 650  
7/7 1510
7NT 1520
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
7/7 2140
minus-8 400 2000
minus-9 450 2300
...  
minus-13 650  
7/7 2210
7NT 2220
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
7/7 1440
minus-5 500 1400
minus-6 600 1700
...    
minus-13 1300  
7/7 1510
7NT 1520
Opps' Contract Alternative
Contract Score Contract Not DBL DBL
7/7 2140
minus-7 700 2000
minus-8 800 2300
...  
minus-13 1300  
7/7 2210
7NT 2220

Summary:

  • If you are not doubled, you can lose all the trick and still ahead.
  • If you are doubled:
    • We are NV vs Vul Opps: max. minus-8
    • We are Vul vs Vul Opps: max. minus-7
    • We are NV vs NV Opps: max. minus-6
    • We are Vul vs NV Opps: max. minus-5