IMHO i think this is one that might go over. If it was a medium at 13.1 or a small at 12.1 I wouldnt be so worried. Does it look "finished" or is it butt high? It might be a crap shoot or you might have just the perfect 14.2 pony. Any other opinions?
I'd be worried about this one. Especially with that bit of warmblood in there. He might grow for a bit longer...
Like Sugarbrook said, Does he look like a full grown or does he look like he may have another spurt or two?
My filly out of a 15 hand RPSI mare (she is by a 16.2 sire and out of 14.1 dam) by a 13 hand Welsh stalion measured 14.1 at 22 months, so 14.2 at 36 months ight be safe. How high is her rump. My 14.1 mare's rump stopped growing at 19 months and the rest caught up at 30 months. My 15 hand mare was 14.3 at 3 years just for the heck of it , I measured her at 5 years and found out to my surprise that she had grown another inch.
However I will add,, that if the filly IS breeding material , I might not be too concerned if she went over , if breeding was of interest, because this is exactly the type of pedigree I would want if breeding sportpony types, which is why we bred Hot Shot.
I think there is a very good chance he will go over. Even my TBs and non-warmblood TB crosses grew more than an inch from age 3 to 4. And with the warmbloods sometimes they stop growing for a little while and fool you into thinking they are done and then TA DAAAA! You get another inch or two more that you didn't think would come.
I don't know anything about Welsh ponies though. How long do they typically grow?
In the FWIW department, I think the baby in question in the OP's post is too close for comfort to the 14.2 mark...I would expect it will probably creep over the mark. That's just my gut feeling...crossbreds are so hard to get a good reading on in terms of growth patterns since they are in essence a genetic crapshoot. Case in point: Amos.
My TB/Morgan boy just turned 3 this past Tuesday, 3/25. His TB mama is 16h, and his Morgan sire is 14h on his tippy toes. The thing with Amos is, he's always looked "finished"...like a miniature grown-up horse, with just a few slight butt-high spells, but he never went through the gangly fuglies. Because of this, I at first thought he might wind up just tiny, but he grew..and grew...and grew. He always just got uniformly bigger. He's been 14.2 1/2 now since last fall, but so far he's done all of his major growing in the spring/summer (like a hand at a time!) so I expect him to have another spurt here soon. He'll probably finish at around 15.1 - 15.2, since Morgans are known to grow forever and his TB mama also grew til she was almost 6.
I've been doing some of these crosses since the early 90s ... warmblood/ warmblood cross mares and small stallions. I'm not as concerned about height as the hunter pony breeders since I'm looking mostly at dressage and eventing, but I have found that 12.2 hands is about the upper limit for the stallion if you need 14.2 and under and are using mares that are 15.2 and over. You also need to keep in mind that a lot of the warmblood cross ponies I've had will grow through their 6 year old year ... and I've heard the same thing from other breeders.