# Koga's Ditto #10/132 — Gym Challenge

## Summary

Koga's Ditto is a holo from the Gym Leader era, when trainer-named Pokémon were the chase and every Kanto gym leader's roster drew its own following. Ken Sugimori, who shaped the franchise's original look, adds appeal, while Ditto's lasting fan affection keeps this printing in demand. The modelled guide sits at $76, flat over 30 days on 35 copies traded, with 273 days of inventory on the board; PSA does not split this card’s population by finish, so no gem rate can be read for it, with original packs long past any pull-rate math.

## Identity

| Field | Value |
| --- | --- |
| Set | Gym Challenge |
| Number | 10/132 |
| Rarity | Holo Rare |
| Era | WOTC |
| Illustrator | Ken Sugimori |
| Release date | 2000-10-16 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Basic |
| HP | 40 |
| Types | Colorless |
| Attack: Giant Growth | cost Colorless — Flip a coin. If heads, Koga's Ditto's maximum HP is now 80 and Koga's Ditto's Pound attack's base damage is 30 instead of 10. (Benching Koga's Ditto ends this effect.) |
| Attack: Pound | cost Colorless — damage 10 |
| Weakness | Fighting x2 |
| Resistance | Psychic -30 |
| Retreat | 1 |
| Legal | Standard no · Expanded no |
| Pokédex entry | [Ditto #132](https://cardboardalpha.com/pokemon/pokedex/ditto) |
| Finishes | Holo |
| Languages | EN |

## Current stats

- Headline price: **$76.18** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-28T23:31:54.960Z
- Headline basis: MODELLED_GUIDE — The venue’s published daily market guide, which the venue itself declares MODELLED. Nothing is confirmed to have traded at it, no copy is listed at it, and it is not our estimate — it is theirs.
- 24h change: n/a · 7d change: +0.70% — as of 2026-10-28T23:31:54.960Z
- Floor delivered ask: $80.79 — as of 2026-10-28T23:31:54.960Z
- Quant score: 51/100, regime ILLIQUID_UNKNOWN — as of 2026-10-28T23:31:54.960Z — 4 of 11 inputs · 38% weight · -31% confidence

## Provenance

- Catalog — observed 2000-10-16T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-27T17:54:19.975Z, confidence 90%
- Price statistic — observed 2026-10-27T05:04:07.914Z, confidence 90%
- Confirmed sale — observed 2026-10-25T20:33:18.633Z, confidence 85%
- Inventory count — observed 2026-10-27T05:04:07.914Z, confidence 70%
- Guide price (modelled) — observed 2026-10-27T00:00:00.000Z, confidence 60%
- Population census — observed 2026-09-14T14:29:25.157Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/gym-challenge/kogas-ditto-10)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Agym2-10%3AEN%3AHOLO~NM)