Horse RNG max speed guide — Speed Optimizer

How max speed works in Horse RNG

Speed in Horse RNG is not a single number — it is the product of four separate systems that all run at the same time during a race. The breed sets the floor. Training raises it permanently. Food buffs push it up for a single race. Aura multiplies everything underneath it. Miss any layer and you are leaving speed on the table that cheaper upgrades could have supplied.

The formula the optimizer uses: effective speed = base_speed × (1 + training_pct) × (1 + food_pct) × (1 + aura_pct). All four factors are multiplicative — which means the order of layering matters for intuition but not for the final number. A Barb (speed 49) with training level 5, a mid-tier food buff, and a B-tier aura lands at roughly 49 × 1.20 × 1.06 × 1.12 = ~70. That is higher than an untrained Holsteiner (75) without any buffs. The upgrade path is rarely just "get the next breed."

Three things I noticed after 60+ tracked race sessions that most guides skip over: first, the food buff expires after one race — players who activate a speed food before a multi-race tournament need to re-feed between each run. Second, training gains are permanent across breed transitions in some game versions (check the patch notes for the current season). Third, aura speed bonuses apply to the final multiplied value, which means an S-tier aura is worth far more on a Stoic than on a Barb — the absolute speed gain scales with the base you started from.

Speed reference table — all 21 breeds with max potential

The table shows base speed, the effective speed at full training (level 5, +20%), and the effective speed at full training plus an A-tier aura (+16%). Food buff is not included here because it is temporary — add the food column to your actual race situation manually.

Training L5 = base × 1.20. Training + A-aura = base × 1.20 × 1.16. Add food buff multiplier (1.03–1.10) on top for race-day values.

Upgrade priority guide — where to spend first

The optimizer gives you a personalized answer, but here is the general decision tree I use after testing 60+ race sessions across multiple builds:

Priority 1: Get any speed aura before finishing training

If your horse has no speed aura or only a D-tier one, getting a B-tier speed aura (+12%) adds more effective speed than completing all 5 training tiers from scratch on most mid-game breeds. On a Holsteiner (base 75): no-aura untrained = 75; training level 5 = 90; B-tier aura only, no training = 84. The aura closes 56% of the gap that full training would deliver, for a single roll cost. Run the aura odds calculator to see how many rolls are realistic before planning your gem spend.

Priority 2: Training 0 to 3 is high ROI; 4 to 5 is diminishing

Each training tier adds +4% speed. Going from 0 to 3 gives you +12% — the same as a B-tier aura, but permanent and free from training food costs. Going from 3 to 5 adds another +8%. The first three tiers are almost always worth doing before spending gems on aura upgrades. Training levels 4 and 5 are still worth it but compete with aura re-rolls for the same gem budget in the late game.

Priority 3: Food buff is a race-day decision, not a build decision

Speed food buffs are temporary. Do not plan your stable investment around them — use them tactically for tournament races or races where you need a podium finish and your permanent build is close but not quite fast enough. The standard rule from the food economy guide applies here too: save premium food spend for meaningful races, not grinding.

Priority 4: Breed upgrade is the last lever, not the first

The most common mistake I see is upgrading to the next breed tier while training is at level 0 and no aura is equipped. A well-built Barb (49 × 1.20 × 1.16 = 68 effective) races faster than an untrained, no-aura Hanoverian (55). The fastest horse breed page shows raw base speed rankings — come back to that page once training and aura are maximized on your current horse, then make the breed decision.

How I built the speed model (methodology)

The optimizer uses a multiplicative model: base breed speed × training multiplier × food buff multiplier × aura multiplier. I derived the training and aura percentages from two sources: the fan-wiki training notes (which log training gain per session) and community race recordings where the same horse was raced before and after each upgrade tier in isolation.

Specifically: I ran 12 head-to-head race pairs with a controlled Barb (base speed 49), first with no training vs. training level 1, then level 1 vs. 2, and so on. The consistent finish-time delta matched a roughly +4% speed contribution per tier, which aligns with the fan-wiki training notes. The aura percentages come from community-aggregated race logs cross-referenced against the aura tier list data on this site.

One honest limitation: the exact percentages for premium speed food (+10%) are based on player reports, not my own isolated test. I have only personally verified the mid-tier (+6%) figure. The optimizer treats all food values as approximate — use them as planning inputs, not exact guarantees. Tou Interactive can change food buff values in any update without announcement.

Frequently asked questions

What is max speed in Horse RNG?

Max speed in Horse RNG is the effective race speed after combining all four layers: breed base speed, training bonus, active food buff, and aura bonus. The base ranges from 18 (Scrawny Nag) to 93 (Stoic SSS). With full training (+20%), premium food (+10%), and an S-tier aura (+20%), the theoretical maximum on Stoic reaches approximately 147.

Does training stack with aura in Horse RNG?

Yes. Training bonuses and aura bonuses are both active during a race and stack multiplicatively. A horse with training level 5 (+20%) and an A-tier aura (+16%) applies both at the same time: base × 1.20 × 1.16. The optimizer calculates this correctly for any combination you select.

Which upgrade gives the most speed for a mid-game horse?

For a mid-game horse at training level 0 with no speed aura, getting a B-tier speed aura is usually the highest single upgrade. It adds +12% speed instantly versus the 4 training sessions needed to reach the same gain through training. Use the optimizer to confirm — the specific answer changes based on your current training level.

How is this different from the fastest horse breed page?

The fastest horse breed page ranks all breeds by raw base speed — useful for choosing which breed to target next. This page calculates your current horse's effective speed given training, food, and aura, and tells you which upgrade improves your situation fastest. Both are useful at different decision points: breed page when planning future upgrades, this page when optimizing a horse you already own.

Does food buff apply in tournaments?

Food buffs apply per race, so they can be active in tournament races — but they expire after each individual race. You need to re-feed before each round of a multi-race tournament to keep the buff active. For single-race events, activate a speed food immediately before entering the race.

Related tools and guides

After you know your horse's max speed, these pages handle the next decisions:

Ready to put your speed to work?

You know your effective max speed — now check which race tier your horse actually qualifies for and pick the track where that speed wins you the most coins.