Breeding can often provide a clue to help sway your opinion one way or another. Some sires are known to produce horses that handle wet ground while others seem to produce horses that struggle in the wet.
I asked Daniel O'Sullivan from The Rating Bureau to dive into their TopRate database to help understand the best wet track sires.
Below is a table that highlights which New Zealand sires see the biggest improvement in performance on heavy (wet) tracks compared to their overall strike rate. The key column is the “S/R Difference – Wet (+)”, which shows how much a sire’s winning strike rate increases when conditions are testing.
At the top of the list is Hello Youmzain, showing a significant jump from a 13.3 overall strike rate to 22.7 on heavy tracks, a +9.4 increase. That’s a standout figure and suggests his progeny is particularly well suited to wet conditions. Eminent and Ardrossan also show strong positive shifts (+7.7 and +6.5 respectively), reinforcing their profiles as sires whose runners handle soft or heavy ground far better than average.
Here is a list showing the winning horses by the strong wet track sires and some of those currently racing worth keeping an eye on.
The first column, “Top Heavy Track Horses (Wins)”, highlights the most successful wet-track performers for each sire based on total wins. These are the horses that have already demonstrated a clear ability to handle testing conditions and are largely responsible for the sire’s established reputation on heavy ground.
The second column, “Active/Recent Heavy Track Horses (Wins)”, focuses on currently racing or recently active horses that are contributing to ongoing performance.
The final column, “Young/Active No Runs on Heavy (Ratings)”, is arguably the most forward-looking. It lists horses that haven’t yet raced on heavy tracks but have strong ratings, indicating potential upside if they encounter those conditions.
For example, Belardo produced Aurora Belle who won a maiden nicely on a Soft 5 at Te Rapa. Every reason to be confident if that mare strikes wetter ground over coming weeks, then she's well placed.
Remember though that there are always exceptions to the rule and breeding alone will not guarantee performance. It’s purely one piece of information that could be useful, especially if you are uncertain about a horse on one or more factors.
