Uma Musume Training Terms Glossary: Bond, Rainbow & More

July 20, 2026

Uma Musume’s training system leans on a handful of terms constantly once bond and support cards enter the conversation. Here’s what each one means for the uma affinity calculator.

Bond Gauge (Affinity)

The 0-100 friendship meter tracked between your trainee and one specific support card, raised mainly through training at that support’s matching facility, random support events, and hint-icon clicks. This is the number the uma affinity calculator tracks toward the 40/60/80/100 thresholds.

Rainbow Training (Friendship Training)

The training bonus that activates once a support card’s bond gauge crosses 80 and its icon turns orange. Training at that support’s matching facility now grants a significant stat-gain multiplier — widely considered the single biggest jump in training efficiency in the whole game, which is why most guides prioritize pushing key supports to 80 first.

Matching Facility

Each support card has a stat type (Speed, Stamina, Power, Guts, Wisdom, or Friend-type), and training at the facility matching that type is what grants bond with that specific support. Training at a non-matching facility does not build bond with that card.

Hint Icon

A special icon that can appear on a support card during training, more likely to show up once bond passes roughly 40. Clicking it teaches (or gets you closer to teaching) a skill hint for that card’s associated skill, and often grants a small bond bump on top.

Support Event

A story-style pop-up that can trigger during a training turn involving one of your equipped supports, usually granting a flat bond amount (commonly +5 or +10) along with flavor dialogue, and sometimes additional stat or energy rewards.

Combined Training Bonus / Friendship Training Bonus

The stacking effect from having multiple supports at high bond training together at the same facility in the same turn — since Rainbow Training multipliers from different supports can combine, prioritizing bond across a whole support deck (not just one card) compounds the benefit.

Trainee Bond Level (Different System)

A separate mechanic from support-card bond — this one tracks the relationship between your trainee character and other trainee characters (rivals, training partners) encountered during a career run, with its own triggers and rewards unrelated to support-card training. The uma affinity calculator does not cover this system.

Rarity (SSR / SR / R)

Support card rarity tiers. Higher-rarity cards, especially SSR, more often carry unique effects — boosted starting friendship, training-effectiveness multipliers, or event-effect-up — that can shave sessions off reaching a given bond threshold compared to an SR or R card, though the effect isn’t a single fixed universal percentage across every card.

Using This Glossary

Match these terms against what you’re seeing in-game, then enter a support card’s current bond value and rarity into the uma affinity calculator to see how many training sessions remain to the next threshold. For a strategy on which supports to prioritize first, see which supports to prioritize to 80 bond first. For these terms applied across a full support deck, see bond training planning: worked examples.