PART 1I've been getting a few emails from folk on here about breeding and rather than having to type individual replies and bearing in mind some of the questions are repetitive I'm just going to post on here a few pointers.
First off this isn't going to be didactic. It's about trying to give you some broad ideas as to how to create some breeding lines and also a glimpse of what's possible. There are a lot of little things I do which make the whole process unique to me and I'm sure you will find your own way too.
The commonest question I get is how do you breed good horses. Well the simplest answer is GIGO - garbage in, garbage out. The key to breeding good horses is by starting with good stock. So the million dollar question is how to find good stock and by this I mean good game bred horses.
One method that goes way back is to create a schedule with claiming races and buy these horses that win races. See this thread here on how to modify your own schedule.
viewtopic.php?p=65589#p65589That way you potentially get good stock. The problem I have with this method is you never know how good the stock is and you end up having to run a lot of races and buy a lot of horses to find out. I find that too time consuming.
My way consists of starting the game on easy mode where you get 5 horses and checking the initial game ratings of those 5. Anything over 80 is worth looking at the detailed ratings. Just keep starting new games. You're looking for horses like these.
The key thing here is absolute potential is close to max but also the realised potential is also close to max. Run these horses for a few races. You'll find they are good enough to win G1s. That's your colt/stallion breeding stock sorted.
Finding good fillies is the other (much harder) key. If you breed horses like the one above without breeding them to good fillies, more often than not you end up with this.

Note the fall in absolute potential. The problem is fillies with close to absolute maximum potential is much harder to find/buy. If you find one great. I hope you've got that game backed up and the ttf.dat file saved. The other issue I have is even when you're breeding colts/fillies with absolute max potential sometimes you just don't get offspring that have the same max potential. So the problem is finding not only a filly that has max potential but also is a good breeder and that will produce offspring with max potential. Believe me there are not many around that I've found.
Start a random game and advance 1 year. Save the game to a back up directory before you do anything else (i.e. backup 1.sav, ext1.sav, ln1.idx, o1.idx and ns1.dat). Then transfer your colt with max potential into game. Get some cash and retire to breeding barn and breed with every single multiple G1 winning filly there. Then advance the game till you get to the crop of 2 year olds. Look for 2 year olds which have max absolute potential. None? Tough. Rinse and repeat with a new random game. When you do see a 2 year old with max absolute potential you've hit paydirt. That filly/mare that foaled that 2 year old is one you want to breed with over and over again.
You did save the game before you transferred your stallion in didn't you? Otherwise you've lost the opportunity to breed again with that filly/mare.
Here's what you're looking for.


Milly Fleur is one of these game mares that provides great offspring as discussed above which I found in the way described above.
And here's the offspring from the two.

I'm not saying every horse bred from Milly Fleur will have high max potential. What I am saying is she has the ability to provide you with that kind of offspring but you're still going to have to breed many horses to get that kind of max potential but the key is you now have good colt AND filly gamebred horses to breed from.
Having horses with max potential is a key principle of building great lines. Every horse I breed at present has nearly full absolute and realised potential.
Feel free to post questions, I'll try and answer them if I can. Not promising to give all my knowledge away but this will provide a good bump to a lot of folks stables I think.
PART 2Once you have got good breeding stock with close to max potential you're partway to getting very good CK times.
The other part is finding what I call game changing horses. Again good luck trying to find them and finding ways to dig them out of the game. But I'll illustrate here what you're trying to do.
If you've read some of my posts in the past you'll realise 1m4f was a real headache for me. I had 1m4f horses with maximum absolute and realised potential. Doc and Matt were posting some really fast times and for a long while I just could not get close despite using every trick I knew.
This is what times looked like for me when Matt and Doc had posted breaking the 2:30 barrier at Epsom.

Nothing special. 2:30:3 at the very best and I'd really hit a brick wall. At that stage my homebreds were better than any gamebred I was running against. I'd almost given up breeding with gamebreds at this time (and certainly at every other distance times were continually falling).
And then this happened

And the resulting time

And another example

And the resulting time

And here's the second point. It really is about finding the one horse sometimes. Don't get stuck in a rut thinking your homebreds are better than any gamebred and there's no point breeding to game horses any longer. Find the right horse and it's a game changer. In retrospect I think I got lucky finding horses that were game changers for most of my lines at 5-1m and 14f and as such the times fell fairly quickly and easily. 12f (but also 10f) remained a struggle for awhile till I found these game changers.
I know.. you're asking how do you find that horse. Ah well

the devil is in the detail but I've shown you the light

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Basically if you're able to do the things in these two posts then I guarantee your CK times will fall. Again feel free to ask questions you have.