The tables
Why the pair is rated this way
The Ox and the Rooster sit four steps apart and belong to the same trine (三合), the metal trio they share with the Snake. Two members of a trine are read as a half harmony: they pull toward the same element even without the third.
The Ox is an earth sign and the Rooster a metal sign. In the generating cycle earth bears metal, so the Ox is read as the one who supports and the Rooster as the one who grows from it.
The Ox rules the winter month that starts around Jan 6 and the hours from 1 am to 3 am; the Rooster rules the autumn month that starts around Sep 8 and the hours from 5 pm to 7 pm.
For comparison, the Ox's harmony partner is the Rat and its trine partners are the Snake and the Rooster; the Rooster's harmony partner is the Dragon and its trine partners are the Snake and the Ox.
Reading
In love, friendship and work
Traditionally the Ox is patient, steady and hard-working, and the Rooster is observant, hard-working and frank. The Ox tends to bring reliability and look for loyalty; the Rooster tends to bring honesty and order and look for appreciation.
In love, trine partners tend to want the same things from life, so they tend to forgive each other's different styles more easily.
As friends or co-workers the support tends to run one way, so it helps when the one who gets it gives something back.
Years
Which years are these animals?
Ox years: 1949 (Earth Ox), 1961 (Metal Ox), 1973 (Water Ox), 1985 (Wood Ox), 1997 (Fire Ox), 2009 (Earth Ox), 2021 (Metal Ox).
Rooster years: 1957 (Fire Rooster), 1969 (Earth Rooster), 1981 (Metal Rooster), 1993 (Water Rooster), 2005 (Wood Rooster), 2017 (Fire Rooster), 2029 (Earth Rooster).
12 of the idols with a Bias Match idol page were born in Ox years.
12 of the idols with a Bias Match idol page were born in Rooster years.
Your pair
Check two birth years
A zodiac year starts in late January or February, not on January 1: Chinese New Year calendars switch at Lunar New Year, and saju switches at Lichun, around February 4. If you were born in January or early February, you may belong to the year before.
Beyond the birth year
On Bias Match the animal that counts most is not the birth year but the day branch, the animal in each person's day pillar. If two people's day branches are Ox (丑) and Rooster (酉), the compatibility calculator scores that check as half a plus, next to five other checks.
The text is fixed sentence templates filled in with the classical relation tables built into the Bias Match engine; no AI model generates or rewrites it. For entertainment only: the zodiac describes old patterns, not what will happen between two people.