BaZi match: branches, day masters, and element balance
A BaZi match sets two finished pillar charts side by side. The classic object is marriage matching. Romantic and family lenses are included. A business partnership is not, because this tool has no separate classical frame for it.
- English name
- BaZi marriage match
- Also called
- Four Pillars match · 合婚
Editorial review: 2026-09-22 · Reviewed by fateshow · Editorial method
Synastry
Year branch and day branch are compared for combination, clash, harm, and punishment. Complement means one person’s weakest element is the other’s strongest — both missing the same element is not a complement.
Concept snapshot
Input
Both birth dates and times
What is calculated
Branch relations, day-master combinations, ten gods each way, element complement
Scenes
Romantic, marriage, family
What it is not
A business-partner chart
What is being compared
Each person needs a four-pillar chart first, so both hours matter. The match then looks at relations between the two charts: the year branches (the animal pair) and the day branches (the spouse branches) for six-combination, three-combination, clash, harm, and punishment. Two relations on one pair are both listed.
Day masters are checked for the five stem combinations, a clash, or the same stem. Each day master is also read as a ten god of the other. Element complement uses the hidden-stem weights from the single chart: complement holds only when one side’s weakest element is the other side’s strongest.
What fateshow calculates
Pillars are shown in parallel with their ten gods and nayin. Year-pillar nayin is compared as generating, controlling, or the same phase. The peach-blossom branch derived from the year-branch three-combination is marked against the other person’s day branch. These are structure marks, not lucky or unlucky labels.
The lens may be romantic, marriage, or family. Marriage is the system’s home reading. Business cooperation is refused rather than improvised from the same pillars.
What it is not
It is not a score out of 100, and “day masters combine” is one stem relation, not a verdict that two people will stay together.
It does not import Zi Wei spouse palaces or Western house overlays. If the question is a working partnership, use the astrology or Human Design synastry tools, which actually declare that scene.
Safety boundary
Branch relations and element balance are a conditional frame. They are not medical, legal, or financial advice, and they are not a reason to accept or refuse a marriage.
Common mistakes
- Calling two charts complementary when both are weak in the same element.
- Using this match to judge a business partnership.
- Treating one stem combination as the whole comparison.
Use it in fateshow
Frequently asked questions
Which relationships does this tool cover?
Romantic, marriage, and family. Business partnership is not offered.
What does “complement” mean here?
One person’s weakest weighted element is the other person’s strongest. If both lack the same element, the chart does not call that a complement.
Do both hours need to be known?
Yes for a stable match. The hour pillar changes ten gods and the element weights that the complement uses.
Sources and editorial basis
- 1. fateshow BaZi match rules
Supports year-branch and day-branch relations, day-master combinations both ways, hidden-stem element complement, nayin, and the peach-blossom mark. It does not add a business-partnership mode.