| Ithil vs Reina | 25–18 | 58.14% |
| Ithil vs Eddy | 11–16 | 40.74% |
| Ithil vs King | 16–10 | 61.54% |
| Ithil vs Jin | 14–12 | 53.85% |
| Ithil vs Kazuya | 10–12 | 45.45% |
| Ithil vs Yoshimitsu | 10–7 | 58.82% |
| Ithil vs Steve | 9–8 | 52.94% |
| Ithil vs Bryan | 8–8 | 50.00% |
| Ithil vs Victor | 10–6 | 62.50% |
| Ithil vs Law | 8–7 | 53.33% |
| Ithil vs Hwoarang | 7–8 | 46.67% |
| Ithil vs Paul | 8–6 | 57.14% |
| Ithil vs Asuka | 5–8 | 38.46% |
| Ithil vs Jun | 10–2 | 83.33% |
| Ithil vs Dragunov | 8–3 | 72.73% |
| Ithil vs Lars | 8–3 | 72.73% |
| Ithil vs Alisa | 6–4 | 60.00% |
| Ithil vs Xiaoyu | 8–0 | 100.00% |
| Ithil vs Devil Jin | 2–6 | 25.00% |
| Ithil vs Claudio | 6–2 | 75.00% |
| Ithil vs Lidia | 5–3 | 62.50% |
| Ithil vs Lili | 4–3 | 57.14% |
| Ithil vs Feng | 3–3 | 50.00% |
| Ithil vs Nina | 5–1 | 83.33% |
| Ithil vs Azucena | 6–0 | 100.00% |
| Ithil vs Fahkumram | 5–1 | 83.33% |
| Ithil vs Shaheen | 2–3 | 40.00% |
| Ithil vs Panda | 3–2 | 60.00% |
| Ithil vs Heihachi | 1–4 | 20.00% |
| Ithil vs Lee | 2–2 | 50.00% |
| Ithil vs Zafina | 1–2 | 33.33% |
| Ithil vs Leroy | 3–0 | 100.00% |
| Ithil vs Anna | 2–1 | 66.67% |
| Ithil vs Miary Zo | 3–0 | 100.00% |
| Ithil vs Jack-8 | 1–1 | 50.00% |
| Ithil vs Leo | 0–2 | 0.00% |
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.