| Iolp vs Jin | 36–25 | 59.02% |
| Iolp vs Hwoarang | 40–16 | 71.43% |
| Iolp vs King | 26–26 | 50.00% |
| Iolp vs Kazuya | 33–19 | 63.46% |
| Iolp vs Lili | 29–22 | 56.86% |
| Iolp vs Reina | 29–20 | 59.18% |
| Iolp vs Heihachi | 30–16 | 65.22% |
| Iolp vs Steve | 25–16 | 60.98% |
| Iolp vs Bryan | 18–15 | 54.55% |
| Iolp vs Law | 20–10 | 66.67% |
| Iolp vs Xiaoyu | 13–17 | 43.33% |
| Iolp vs Asuka | 8–17 | 32.00% |
| Iolp vs Devil Jin | 16–9 | 64.00% |
| Iolp vs Paul | 12–12 | 50.00% |
| Iolp vs Yoshimitsu | 12–10 | 54.55% |
| Iolp vs Dragunov | 12–9 | 57.14% |
| Iolp vs Jun | 12–9 | 57.14% |
| Iolp vs Lars | 16–4 | 80.00% |
| Iolp vs Azucena | 8–11 | 42.11% |
| Iolp vs Victor | 10–7 | 58.82% |
| Iolp vs Jack-8 | 8–6 | 57.14% |
| Iolp vs Lee | 8–6 | 57.14% |
| Iolp vs Alisa | 7–3 | 70.00% |
| Iolp vs Feng | 4–5 | 44.44% |
| Iolp vs Leo | 5–3 | 62.50% |
| Iolp vs Eddy | 7–0 | 100.00% |
| Iolp vs Clive | 0–7 | 0.00% |
| Iolp vs Anna | 2–5 | 28.57% |
| Iolp vs Shaheen | 3–3 | 50.00% |
| Iolp vs Fahkumram | 4–2 | 66.67% |
| Iolp vs Nina | 5–0 | 100.00% |
| Iolp vs Kuma | 3–2 | 60.00% |
| Iolp vs Raven | 3–1 | 75.00% |
| Iolp vs Claudio | 2–1 | 66.67% |
| Iolp vs Leroy | 3–0 | 100.00% |
| Iolp vs Lidia | 1–2 | 33.33% |
| Iolp vs Zafina | 1–1 | 50.00% |
| Iolp vs Armor King | 2–0 | 100.00% |
| Iolp 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.