Thoroughbred Racing ManagerPlay freeWhen breeding opens
Finish your first Season Race to unlock breeding. Local Races and Practice do not unlock it. A horse must be age 3 to 12, healthy, and have at least 60 Energy to breed.
Pick a sire and a dam
You can use horses in your own stable or rent an eligible horse. Rentals cost extra, and the price changes with the horse. The breeding screen does the final check before you can continue.
Both parents use their daily action if they belong to your stable, so do not schedule a race or training session for the same day.
Read the preview, not just the big ratings
The preview shows the total cost, success chance, expected foal outlook, and delivery time. It also shows how well the pairing fits. This is the screen to slow down and compare your choices.
| Word | What it means |
|---|---|
| Bloodline | The family line passed on by the sire. |
| Heritage | The family line passed on by the dam. |
| Compatibility | How those two family lines work together in the pairing. |
| Foal outlook | The likely potential of the foal, not a guarantee. |
Better compatibility can help. Matching surface and distance preferences can help too. Parent age, Energy, and close family relationships also matter. The final chance is always kept between 25% and 75%.
The Eight Founding Bloodlines
TRM begins with eight founding horses. Each founding horse gives its name to its founding bloodline: the family line that continues through later generations.
- Iron Crown
- Silver Reed
- Ember Veil
- Mist Harbor
- Royal Fern
- Cinder Lane
- Stone Orchid
- Golden Rail
Every horse ultimately descends from these original lines, but the founders are only the beginning. Through breeding, crossing lines, racing success, and generations of descendants, player-created horses and families can become more important to TRM history than the original founders.
Some pairings are blocked
TRM does not allow parent-and-child pairings or full siblings. It checks the parents and grandparents it knows about before confirming the match.
What happens after you breed
You pay when you confirm, whether the attempt works or not. A successful attempt creates a foal that arrives after three days. Make sure you have room in your stable; if it is full, the foal waits until a space opens up.
The foal starts at age 1. It gets a mix of both parents’ traits, potential, preferences, color, and family lines, with some variation. It cannot train or race until age 2.
Quick breeding checklist
- Finish an official race to unlock breeding.
- Choose a healthy sire and dam, age 3–12, with 60 or more Energy.
- Check the compatibility, cost, and chance in the preview.
- Make sure neither owned parent needs that day’s action for something else.
- Leave an open stable slot for a successful foal.
For the bigger picture, visit the breeding overview.