2018 Topps Chrome Base Set Ryan McMahon Green Wave Refractor #21
2018
$14.00est. value (ungraded)
Prices updated 2026-10-15
Based on recorded sold prices how we price cards
Ryan McMahon price history
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Recent recorded prices
2 recorded price points for the 2018 Topps Chrome Base Set Ryan McMahon Green Wave Refractor #21 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 15, 2026 | Market value | $14.00 |
| Oct 14, 2026 | Market value | $14.00 |
Ryan McMahon prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $14.00 | Buy on eBay ↗ |
| PSA 9 | $18.48 | Buy on eBay ↗ |
| Grade 9.5 | $20.00 | Buy on eBay ↗ |
| PSA 10 | $40.00 | Buy on eBay ↗ |
| BGS 10 | $52.00 | Buy on eBay ↗ |
| CGC 10 | $24.00 | Buy on eBay ↗ |
| SGC 10 | $24.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2018 Topps Chrome Base Set Ryan McMahon Green Wave Refractor #21 value & prices
The 2018 Topps Chrome Base Set Ryan McMahon Green Wave Refractor #21 is a Baseball card (Green Wave Refractor parallel) released in 2018. Ungraded copies carry a market value of about $14.00.
An ungraded copy is worth around $14.00, a PSA 9 around $18.48, a PSA 10 (Gem Mint) around $40.00 and a pristine BGS 10 around $52.00. The gem-mint premium is modest (about 2.9× raw), so condition matters here but doesn't completely define the price.
Is it worth grading?
The spread between raw ($14.00) and top-graded ($40.00) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.