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Best Lead

1NT best lead

Best Lead20,000 boardsAug 9, 2026SlobodanComplete

Answer

Conclusion

Best opening leadT♣6.28 defensive tricks+0.02 vs next best
Contract1NT SBoards20,000 / 20,000Attempts-Pick rate-Candidates11
Opening hand
♠
Q♠8♠5♠
♥
K♥4♥
♦
A♦Q♦T♦9♦7♦6♦
♣
T♣3♣

Primary evidence

What the data says

LeadDefensive tricksDeclarer make %Difference from best
T♣Best6.2851.9%-
3♣6.2652.3%-0.02
A♦6.1058.0%-0.18
5♠6.0557.7%-0.23
8♠6.0557.7%-0.23
K♥6.0059.1%-0.28
T9♦5.9862.7%-0.3
76♦5.9762.9%-0.31
Q♦5.9662.5%-0.32
Q♠5.9360.1%-0.35
4♥5.8861.8%-0.4

Breakdown

Analyze by hand shape and points

Breakdown

1NT best lead

5,000 boards

This table uses the 5,000 boards currently loaded from 20,000 matching boards.

FilterBoardsBest leadAverageDefense
5 HCP235Q♠ (96)Declarer 8.00Defense 5.00
6 HCP523Q♠ (212)Declarer 7.46Defense 5.54
7 HCP1,052Q♠ (429)Declarer 6.77Defense 6.23
8 HCP1,141Q♠ (494)Declarer 6.08Defense 6.92
9 HCP1,059Q♠ (475)Declarer 5.39Defense 7.61
10 HCP670Q♠ (337)Declarer 4.90Defense 8.10
11 HCP320Q♠ (147)Declarer 4.27Defense 8.73

Scenario

Opening lead setup

LHO
6-10 HCP♠ 4-5 cards
Partner

Any hand

RHO
12-14 HCP♠ 2-3 cards♥ 2-4 cards♦ 3-5 cards♣ 2-4 cards

Detailed analysis

Full result detail

T♣6.28
3♣6.26
A♦6.1
5♠6.05
8♠6.05
LeadDefensive tricksDeclarer make %Difference from best
T♣Best6.2851.9%-
3♣6.2652.3%-0.02
A♦6.1058.0%-0.18
5♠6.0557.7%-0.23
8♠6.0557.7%-0.23
K♥6.0059.1%-0.28
T9♦5.9862.7%-0.3
76♦5.9762.9%-0.31
Q♦5.9662.5%-0.32
Q♠5.9360.1%-0.35
4♥5.8861.8%-0.4

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HCP

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Boards

Best Lead boards

20000
BoardBest leadDecl. tricksDef. tricksResultOpen
Showing 8 of 5000 loaded boards from 20,000 saved boards.Large shared results load the first 5,000 boards as a sample.
Run detailsTechnical generation informationShow
Requested20,000Generated20,000Attempts-Pick rate-StatusCompleteModeBest LeadCreated8/9/2026, 10:52:55 PMBoard sample20,000 total saved boards