| IRON_GRAMPA vs Jin | 43–29 | 59.72% |
| IRON_GRAMPA vs King | 42–28 | 60.00% |
| IRON_GRAMPA vs Reina | 44–24–1 | 64.71% |
| IRON_GRAMPA vs Kazuya | 35–33 | 51.47% |
| IRON_GRAMPA vs Steve | 29–25 | 53.70% |
| IRON_GRAMPA vs Heihachi | 27–26 | 50.94% |
| IRON_GRAMPA vs Yoshimitsu | 26–15 | 63.41% |
| IRON_GRAMPA vs Hwoarang | 27–14 | 65.85% |
| IRON_GRAMPA vs Eddy | 18–22 | 45.00% |
| IRON_GRAMPA vs Lili | 27–12 | 69.23% |
| IRON_GRAMPA vs Dragunov | 26–10 | 72.22% |
| IRON_GRAMPA vs Lidia | 21–11 | 65.62% |
| IRON_GRAMPA vs Jun | 19–12 | 61.29% |
| IRON_GRAMPA vs Paul | 19–11 | 63.33% |
| IRON_GRAMPA vs Victor | 15–15 | 50.00% |
| IRON_GRAMPA vs Bryan | 13–14 | 48.15% |
| IRON_GRAMPA vs Feng | 17–9 | 65.38% |
| IRON_GRAMPA vs Nina | 20–5 | 80.00% |
| IRON_GRAMPA vs Law | 12–12 | 50.00% |
| IRON_GRAMPA vs Azucena | 14–10 | 58.33% |
| IRON_GRAMPA vs Xiaoyu | 15–7 | 68.18% |
| IRON_GRAMPA vs Claudio | 15–5 | 75.00% |
| IRON_GRAMPA vs Leo | 9–10 | 47.37% |
| IRON_GRAMPA vs Lars | 9–10 | 47.37% |
| IRON_GRAMPA vs Devil Jin | 13–5 | 72.22% |
| IRON_GRAMPA vs Lee | 10–8 | 55.56% |
| IRON_GRAMPA vs Asuka | 12–4 | 75.00% |
| IRON_GRAMPA vs Zafina | 9–5 | 64.29% |
| IRON_GRAMPA vs Leroy | 9–5 | 64.29% |
| IRON_GRAMPA vs Raven | 3–8 | 27.27% |
| IRON_GRAMPA vs Clive | 8–3 | 72.73% |
| IRON_GRAMPA vs Jack-8 | 7–2 | 77.78% |
| IRON_GRAMPA vs Panda | 2–6 | 25.00% |
| IRON_GRAMPA vs Kuma | 4–3 | 57.14% |
| IRON_GRAMPA vs Alisa | 1–5 | 16.67% |
| IRON_GRAMPA vs Shaheen | 6–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.