| Iron Grandpa vs King | 22–13 | 62.86% |
| Iron Grandpa vs Law | 22–10 | 68.75% |
| Iron Grandpa vs Steve | 20–11 | 64.52% |
| Iron Grandpa vs Jin | 10–9 | 52.63% |
| Iron Grandpa vs Kazuya | 12–6 | 66.67% |
| Iron Grandpa vs Paul | 11–6 | 64.71% |
| Iron Grandpa vs Hwoarang | 12–5 | 70.59% |
| Iron Grandpa vs Reina | 13–4 | 76.47% |
| Iron Grandpa vs Heihachi | 11–6 | 64.71% |
| Iron Grandpa vs Bryan | 11–5 | 68.75% |
| Iron Grandpa vs Lars | 8–7 | 53.33% |
| Iron Grandpa vs Azucena | 11–2 | 84.62% |
| Iron Grandpa vs Lili | 11–1 | 91.67% |
| Iron Grandpa vs Leo | 6–6 | 50.00% |
| Iron Grandpa vs Lee | 7–5 | 58.33% |
| Iron Grandpa vs Devil Jin | 9–2 | 81.82% |
| Iron Grandpa vs Feng | 6–5 | 54.55% |
| Iron Grandpa vs Victor | 4–7 | 36.36% |
| Iron Grandpa vs Xiaoyu | 7–3 | 70.00% |
| Iron Grandpa vs Raven | 6–4 | 60.00% |
| Iron Grandpa vs Yoshimitsu | 6–3 | 66.67% |
| Iron Grandpa vs Zafina | 6–3 | 66.67% |
| Iron Grandpa vs Leroy | 7–2 | 77.78% |
| Iron Grandpa vs Eddy | 4–5 | 44.44% |
| Iron Grandpa vs Lidia | 8–1 | 88.89% |
| Iron Grandpa vs Jack-8 | 3–5 | 37.50% |
| Iron Grandpa vs Kuma | 4–2 | 66.67% |
| Iron Grandpa vs Claudio | 4–1 | 80.00% |
| Iron Grandpa vs Nina | 5–0 | 100.00% |
| Iron Grandpa vs Jun | 3–2 | 60.00% |
| Iron Grandpa vs Dragunov | 2–1 | 66.67% |
| Iron Grandpa vs Alisa | 2–1 | 66.67% |
| Iron Grandpa vs Shaheen | 2–1 | 66.67% |
| Iron Grandpa vs Fahkumram | 3–0 | 100.00% |
| Iron Grandpa vs Asuka | 2–0 | 100.00% |
| Iron Grandpa vs Panda | 1–0 | 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.