| iWaS vs Jin | 14–12 | 53.85% |
| iWaS vs Reina | 12–11 | 52.17% |
| iWaS vs King | 10–4 | 71.43% |
| iWaS vs Steve | 7–6 | 53.85% |
| iWaS vs Asuka | 8–4 | 66.67% |
| iWaS vs Paul | 3–8 | 27.27% |
| iWaS vs Kazuya | 6–5 | 54.55% |
| iWaS vs Hwoarang | 8–2 | 80.00% |
| iWaS vs Nina | 5–5 | 50.00% |
| iWaS vs Jun | 6–2 | 75.00% |
| iWaS vs Azucena | 2–5 | 28.57% |
| iWaS vs Bryan | 3–3 | 50.00% |
| iWaS vs Leo | 5–1 | 83.33% |
| iWaS vs Raven | 3–3 | 50.00% |
| iWaS vs Dragunov | 4–1 | 80.00% |
| iWaS vs Eddy | 2–3 | 40.00% |
| iWaS vs Yoshimitsu | 2–2 | 50.00% |
| iWaS vs Devil Jin | 1–3 | 25.00% |
| iWaS vs Lili | 2–1 | 66.67% |
| iWaS vs Lars | 2–1 | 66.67% |
| iWaS vs Lee | 2–1 | 66.67% |
| iWaS vs Kuma | 2–0 | 100.00% |
| iWaS vs Victor | 2–0 | 100.00% |
| iWaS vs Law | 0–1 | 0.00% |
| iWaS vs Xiaoyu | 0–1 | 0.00% |
| iWaS vs Jack-8 | 0–1 | 0.00% |
| iWaS vs Feng | 0–1 | 0.00% |
| iWaS vs Zafina | 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.