Derby Stallion
Game Boy Advance · 1994
About this game
Best Keiba: Derby Stallion is a simulation game which focuses not only on horse races, but on producing and training racehorses as well.
Thus it has something from managerial game.
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The stage is a ranch, stables, and racetrack.
Initially, it starts with one breeding mare and 15 million yen in funding.
The first given breeding mare is of course the lowest class.
Horse maintenance costs are 100,000 yen for each horse on a farm and 400,000 yen for each horse in a stable.
This fee is collected at the beginning of each month.
When the funds reach zero, the game ends with bankruptcy.
Of the basic parameters of a racehorse, four are directly related to racing: speed, stamina, temperament, and competitive spirit.
Furthermore, performance changes depending on factors such as sturdiness, fatigue recovery, condition, horse weight, and growth rate.
If you have a bad temper, you'll be late, or you'll waste your stamina by moving ahead without following the instructions on the way.
If you have a fighting spirit, it will be easier to win when competing in a straight line.
If it is highly durable, it is less likely to break down during training or racing.
There will also be fewer cases of athletes becoming unwell after a race.
If you have a high level of recovery, it will be easier to overcome fatigue after a race, and you will be able to run tougher even if you run repeatedly at short intervals.
The condition of a horse is what is called a biorhythm, and no matter how capable a horse may be, if it is put into a race when it is not in good shape, it will not be able to fully demonstrate its potential.
Each type has a different peak time, with early maturing being around the middle of 4 years of age, normal being late 5 years of age, and late maturing around 7 years of age.
Horses might by injured during races and in such cases they are excluded from next races.
In extreme situations, when prognosis are poor, horse can be euthanized.
About Game Boy Advance
Nintendo's Game Boy Advance (2001) offered near-SNES-level graphics in a handheld and became a home for excellent ports as well as original titles across nearly every genre. GBA cartridges are generally durable and plentiful, making it an approachable platform for new collectors, though a few late-release RPGs and limited exclusives have become genuine chase items.
Gamevaro tracks Derby Stallion for Game Boy Advance with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding Derby Stallion to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This GBA release dates back to 1994.
Price history
Market values by condition
NTSC-J
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-18 | New (sealed) | NTSC-J | €22.74 |
| 2026-07-18 | Item only | NTSC-J | €4.09 |
| 2026-07-18 | Manual Only | NTSC-J | €3.84 |
| 2026-07-18 | Graded New | NTSC-J | €25.01 |
| 2026-07-18 | Complete in Box | NTSC-J | €15.35 |
| 2026-07-18 | Box Only | NTSC-J | €6.14 |
| 2026-07-16 | Item only | NTSC-J | €4.10 |
| 2026-07-16 | Box Only | NTSC-J | €6.15 |
| 2026-07-16 | New (sealed) | NTSC-J | €22.80 |
| 2026-07-16 | Manual Only | NTSC-J | €3.85 |
| 2026-07-16 | Complete in Box | NTSC-J | €15.39 |
| 2026-07-16 | Graded New | NTSC-J | €25.07 |
| 2026-07-14 | New (sealed) | NTSC-J | €22.76 |
| 2026-07-14 | Manual Only | NTSC-J | €3.84 |
| 2026-07-14 | Graded New | NTSC-J | €25.04 |
| 2026-07-14 | Box Only | NTSC-J | €6.14 |
| 2026-07-14 | Item only | NTSC-J | €4.10 |
| 2026-07-14 | Complete in Box | NTSC-J | €15.36 |
| 2026-07-13 | New (sealed) | NTSC-J | €22.75 |
| 2026-07-13 | Graded New | NTSC-J | €25.02 |
| 2026-07-13 | Manual Only | NTSC-J | €3.84 |
| 2026-07-13 | Box Only | NTSC-J | €6.14 |
| 2026-07-13 | Complete in Box | NTSC-J | €15.35 |
| 2026-07-13 | Item only | NTSC-J | €4.09 |
| 2026-07-12 | New (sealed) | NTSC-J | €22.75 |
| 2026-07-12 | Item only | NTSC-J | €4.09 |
| 2026-07-12 | Box Only | NTSC-J | €6.14 |
| 2026-07-12 | Graded New | NTSC-J | €25.02 |
| 2026-07-12 | Complete in Box | NTSC-J | €15.35 |
| 2026-07-12 | Manual Only | NTSC-J | €3.84 |
Market insights
Rarity & condition
Derby Stallion has a steady sales history on the tracked marketplaces, meaning enough copies circulate to establish a reliable market price.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is Derby Stallion worth?
Derby Stallion for Game Boy Advance is currently worth €8.76 loose, €15.35 complete in box, and €22.74 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is Derby Stallion rare?
Derby Stallion has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.
What's the difference between loose, CIB and sealed for Derby Stallion?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Derby Stallion, loose is €8.76 and CIB is €15.35 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Ratings & Reviews
Also on other platforms
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