When a great horse is lost, what remains isn’t just a name on paper — it’s a legacy. It’s years of careful selection, investment, training, and dreams carried forward through the genetic decisions owners and breeders make with intention. That legacy should be stewarded responsibly, over time — not forced into a frantic, two-year sprint.
That’s why I’m calling on AQHA and its membership to strike down REG111.6 and REG112.9 — the rules commonly referred to as the “Two-Year Rule.” While the rule was positioned as a tool to protect genetic diversity, the reality is that it can do the opposite: it compresses breeding decisions into a 24-month window, encourages market saturation, devalues foals by flooding supply, and undermines thoughtful long-term planning. It replaces breeder judgement with a countdown.
What the Two-Year Rule says (direct from the AQHA Rulebook)
The policy applies to stallions and mares foaled in 2015 or after, and limits AQHA registration eligibility for foals produced using stored genetics after a defined deadline. The rulebook states:
REG111.6 With respect to a stallion foaled in 2015 or after, the semen of such stallion may not be used beyond 2 calendar years following the year of his death or his being gelded to produce a foal eligible for registration with AQHA. If fresh, cooled or frozen semen is used to create an embryo, refer to REG 112.9. Example: Stallion born in 2015, died in 2019, his semen cannot be used after 12/31/2021.
REG112.9 With respect to a mare foaled in 2015 or after, any embryos of such mare may not be used beyond 2 calendar years following the year of her death or being spayed to produce a foal eligible for registration with AQHA. If fresh, cooled or frozen semen is used to create an embryo, the embryo must be in utero within the defined time as outlined for the stallion and the mare. Example: Mare born in 2015, died in 2019, her frozen embryo cannot be used after 12/31/2021. If the sire is born in 2015, embryo created and frozen in 2018, the sire died in 2021, the frozen embryo cannot be used after 12/31/2023."
If genetic diversity is the goal, this isn’t the right tool
The strongest argument used to defend the Two-Year Rule is “genetic diversity.” But the numbers make something very clear: deceased stallions are not the source of genetic concentration.
The reality, using 2024 breeding-report metrics
- Approximately 17,000 stallions have 2024 Stallion Breeding Reports.
- Only 136 of those are deceased stallions — breeding less than 1% of the mare population.
- Meanwhile, 121 popular stallions (about 1% of the stallion population) are breeding nearly 20% of the mare population (as of 2024).
- Nine stallions bred 4.5% of ALL mares in 2024.
If diversity is the concern, then we have a concentration problem — but it’s not driven by deceased stallions. It’s driven by extreme sire density among a very small group of highly popular, actively marketed stallions. The Two-Year Rule does not address that reality. Worse, it can unintentionally intensify it by restricting access to proven outcrosses and older, less saturated genetics that breeders might otherwise use strategically over time.
The Two-Year Rule forces grief into a deadline
At StallionCompare, we receive messages from owners who are grieving — and simultaneously trying to make high-stakes, expensive decisions under a ticking clock. The moment a stallion or mare passes, the rule turns preserved genetics into a rapidly expiring asset.
That pressure does not protect the breed. It pressures owners to rush utilisation, often in higher volume, simply to preserve registration eligibility. The predictable downstream effects are painful:
- Oversaturation: too many foals from the same genetics hitting the market at once.
- Devaluation: exceptional genetics can lose value when supply is artificially compressed into a short window.
- Reduced diversity: restrictions narrow options, especially for breeders intentionally seeking outcrosses.
- Welfare risk: a hard deadline can unintentionally influence end-of-life decisions or reproductive retirement decisions — where the horse’s comfort should be the only priority.
This is not just theory — it’s happening right now
In recent months alone, we’ve been notified of the passing of multiple mares and stallions on our platform. Ten of the most recent include: Mystical Frenchman, Bank On The Best, Isnt Shee Something, Hot Dayum, Relentless PYC, Ricato Suave, The Heisman Legend, Platinum Sixx, Bet Hesa Ginnin, and FG Born Legacy. Under the Two-Year Rule, each of their breeding legacies becomes a 24-month race — regardless of the owner’s long-term planning, finances, or the realities of mare management.
We should delete the rule — and replace it with better tools
A growing number of breeders and programmes have reached the same conclusion: the Two-Year Rule should be deleted. Solo Select Horses recently published a clear, data-driven perspective supporting deletion, noting that market forces have historically limited overuse naturally — and that restricting access can narrow options rather than expand them.
If AQHA wants to genuinely support genetic diversity, the answer is not blunt restrictions — it’s transparency and breeder-facing data tools. Give breeders data. Not restrictions.
Practical, pro-diversity solutions AQHA can implement
- Publish genetic diversity metrics annually so members can track real change over time.
- Publish annual breeding-report data for every stallion (including number of mares bred) so breeders can evaluate sire density and market saturation.
- Provide accessible COI (Coefficient of Inbreeding) and relatedness data within the AQHA database for individual horses.
- Develop a Breeder Decision Tool where members can enter a proposed cross, view projected inbreeding coefficient, and review the sire’s breeding volume and total foals registered over the past five years to understand market saturation and competitive density.
What you can do
If you agree that legacy deserves stewardship — not a countdown — consider taking action:
- Share this article with AQHA members in your network.
- Write a respectful letter to AQHA asking them to delete REG111.6 and REG112.9.
- Encourage member participation and informed voting at the next AQHA Convention.
- Ask for transparency: diversity metrics, COI tools, and breeding-volume reporting.
Deleting the Two-Year Rule doesn’t mean abandoning responsibility. It means choosing smarter, data-led tools that actually address genetic concentration — while preserving breeder autonomy, market stability, and the legacies our horses leave behind.
