Roster Mating Explained
Roster Mating tests one mare against every stallion standing at a given farm in a single pass, instead of running them one at a time.
There are two Roster Matings in G1 Goldmine, and they do different jobs. One sits in Stallion Match and one in the Impact Profile. Which you want depends on the question you are asking.
Why run a whole roster
Assessing matings one by one is slow, and the slowness has a real cost: it pushes breeders towards checking only the stallions they had already thought of.
That is the wrong way round. The stallion you assumed was the answer may rate third on the farm's list, and the one that rates highest may be a horse you would never have looked at, standing at a lower fee, because nothing about his reputation drew your attention. Running the full roster takes your own prior expectations out of the shortlisting.
It also matters commercially. Farms usually have a headline stallion and a deeper roster, and the deeper roster is where value tends to sit.
Roster Mating in Stallion Match
Enter your mare, select a farm, and the platform returns a table covering the farm's roster.
This is a shortlisting view. It gives you the whole roster in one screen so you can see which stallions are worth examining, then click through on any of them to open a full Stallion Match search for that pairing, with the complete stakes winner list, the pattern-matched pedigrees and the supporting panels.
Use this one when you are starting from a farm and want to know which of their stallions to look at properly.
Roster Mating in the Impact Profile
This runs the Impact Profile itself across the roster, producing the cross analysis for your mare against each stallion at the farm rather than a summary to drill into.
The output is analytical rather than navigational. Where the Stallion Match version tells you which pairings deserve a closer look, this one gives you the cross-level assessment for each pairing directly, so you can compare how the crosses within each resulting pedigree score.
Use this one when you already know you want the Impact Profile view across a farm's stallions and do not want to run them individually.
Which to use
- Starting from a farm and narrowing down? Stallion Match Roster Mating. Scan the table, click into the ones that stand out.
- Want cross-level analysis across a roster? Impact Profile Roster Mating.
- Doing both? Shortlist in Stallion Match first, then run the Impact Profile on the survivors. That is usually the faster order.
Reading the results
Treat either output as a sorting exercise rather than an answer.
Use it to shortlist, not to decide. The value is in reducing twenty stallions to three or four worth serious examination.
Look at the gaps. If three stallions separate clearly from the rest, that is meaningful. If the whole roster clusters together, the analysis is not distinguishing between them and the decision will rest on other grounds.
Do not ignore the bottom. Knowing which stallions clearly do not suit your mare is worth as much as knowing which do, particularly when a farm is promoting one of them to you.
Ratings are not the only input. Fee, physical match to the mare, the farm's location, and where you intend to sell or race the foal all bear on the decision and none of them appear in a pedigree analysis.
Adding your mare
If your mare is not already in the database, add her using Add a Horse and she is available to match immediately.
Working across several farms
Roster Mating covers one farm at a time. When comparing across farms, run each roster separately and compare the leaders.
An alternative is to work from the stallion roster filters instead, narrowing by location, fee range and year to stud to build a list that spans farms. This is often the better route when budget is the binding constraint rather than geography.