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Use when valuing PSA 9 vs PSA 10 across categories. The multiplier is the most important card-pricing variable.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/x3allamerican/cards-skills --skill psa-9-to-psa-10-multipliers命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
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基于 SOC 职业分类
| name | psa-9-to-psa-10-multipliers |
| description | Use when valuing PSA 9 vs PSA 10 across categories. The multiplier is the most important card-pricing variable. |
PSA 10 multiplier varies 2× to 50× over PSA 9. Modern Pokemon is steepest (5-15×); vintage sports flatter (2-4×).
| Category | PSA 10 vs PSA 9 |
|---|---|
| Modern Pokemon | 5-15× |
| Modern Magic | 2-5× |
| Vintage Pokemon WOTC | 8-20× |
| Modern sports rookies | 3-8× |
| Vintage sports (pre-1980) | 2-4× |
| Modern Bowman 1st | 5-12× |
| Modern parallels /50 | 4-10× |
| 1/1 cards | N/A (auction discovery) |
High-multiplier categories: submit only confident 10 candidates. Modern Pokemon, vintage Pokemon WOTC, Bowman 1st — careful pre-screen. Low-multiplier categories: submit borderline cards. Vintage sports (PSA 8 still strong), modern parallels (PSA 9 acceptable).
Drives Crossover Arbitrage tool EV calculations.