Koki Yamaguchi card values & price guide
Koki Yamaguchi has 31 cards tracked; the most valuable is the 2021 Topps Chrome NPB Nippon Professional Koki Yamaguchi Orange #112 at $19.99 as of October 24, 2026.
31 cards · 4 sets · 2021–2024
Prices last updated Oct 2026
Cards tracked
31
Highest value
$19.99
Value range
$2–$20
Median value
$6
PSA 10 avg
$42
With recorded sales
7
Most valuable Koki Yamaguchi cards
Top 7 by value
Earliest cards (2021)
The earliest Koki Yamaguchi cards in our catalog, ranked by value.
By price
Affordable under $257 cards
- 2021 Topps Chrome NPB Nippon Professional #112$19.99
- 2021 Topps Chrome NPB Nippon Professional #112$11.99
- 2021 Topps Chrome NPB Nippon Professional #112$7.57
- 2021 Topps Chrome NPB Nippon Professional #112$5.83
- 2021 Topps Chrome NPB Nippon Professional #112$2.99
- 2021 Topps Chrome NPB Nippon Professional #112$1.99
All prices
Show all 31 cards in this tableShow fewer
By year
| Year | Cards | Top card | Value |
|---|---|---|---|
| 2024 | 9 | — | — |
| 2023 | 4 | — | — |
| 2022 | 9 | — | — |
| 2021 | 9 | 2021 Topps Chrome NPB Nippon Professional #112 | $19.99 |