What this is
Grade ladder for one card across separate sales: PSA 10 Goldin Feb 2026, PSA 9 Heritage Mar 2026, PSA 8.5 Goldin Mar 2026.
The values
- PSA10 over PSA9 Heritage times: 11.7
- PSA9 over PSA8.5 times: 1.93
- 1st Tournament Pikachu PSA8 over Illustrator PSA8.5 times: 1.35
- PSA9 eBay 2025 over PSA9 Heritage 2026 times: 2.84
- Implied PSA9 fall if both true: 64.8%
Where it comes from
Our calculation from other figures in the trainer’s notes:
Show the working
- 16,492,000 / 1,406,250 = 11.73
- 1,406,250 / 727,120 = 1.93
- 982,100 / 727,120 = 1.35
- 4,000,000 / 1,406,250 = 2.84
- 1 − 1,406,250 / 4,000,000 = 64.8%