| Irontoad vs Eddy | 6–20 | 23.08% |
| Irontoad vs King | 16–4 | 80.00% |
| Irontoad vs Jin | 17–3 | 85.00% |
| Irontoad vs Reina | 13–4 | 76.47% |
| Irontoad vs Dragunov | 8–8 | 50.00% |
| Irontoad vs Bryan | 7–8 | 46.67% |
| Irontoad vs Jun | 11–4 | 73.33% |
| Irontoad vs Law | 8–6 | 57.14% |
| Irontoad vs Paul | 6–6 | 50.00% |
| Irontoad vs Yoshimitsu | 8–4 | 66.67% |
| Irontoad vs Devil Jin | 8–3 | 72.73% |
| Irontoad vs Lars | 7–3 | 70.00% |
| Irontoad vs Lee | 8–2 | 80.00% |
| Irontoad vs Kazuya | 6–3 | 66.67% |
| Irontoad vs Steve | 4–5 | 44.44% |
| Irontoad vs Lili | 5–3 | 62.50% |
| Irontoad vs Victor | 5–3 | 62.50% |
| Irontoad vs Asuka | 7–0 | 100.00% |
| Irontoad vs Lidia | 1–6 | 14.29% |
| Irontoad vs Jack-8 | 4–2 | 66.67% |
| Irontoad vs Kuma | 3–3 | 50.00% |
| Irontoad vs Panda | 4–2 | 66.67% |
| Irontoad vs Hwoarang | 4–1 | 80.00% |
| Irontoad vs Leroy | 4–1 | 80.00% |
| Irontoad vs Feng | 4–0 | 100.00% |
| Irontoad vs Claudio | 4–0 | 100.00% |
| Irontoad vs Nina | 2–2 | 50.00% |
| Irontoad vs Azucena | 2–2 | 50.00% |
| Irontoad vs Raven | 4–0 | 100.00% |
| Irontoad vs Alisa | 3–0 | 100.00% |
| Irontoad vs Clive | 1–2 | 33.33% |
| Irontoad vs Xiaoyu | 0–2 | 0.00% |
| Irontoad vs Leo | 0–2 | 0.00% |
| Irontoad vs Heihachi | 2–0 | 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.