| Heero vs Kazuya | 9–5 | 64.29% |
| Heero vs King | 9–4 | 69.23% |
| Heero vs Jin | 8–4 | 66.67% |
| Heero vs Steve | 9–3 | 75.00% |
| Heero vs Xiaoyu | 8–3 | 72.73% |
| Heero vs Bryan | 5–5 | 50.00% |
| Heero vs Heihachi | 3–7 | 30.00% |
| Heero vs Law | 6–2 | 75.00% |
| Heero vs Reina | 5–3 | 62.50% |
| Heero vs Dragunov | 3–4 | 42.86% |
| Heero vs Asuka | 4–2 | 66.67% |
| Heero vs Zafina | 2–3 | 40.00% |
| Heero vs Leroy | 3–2 | 60.00% |
| Heero vs Lidia | 0–5 | 0.00% |
| Heero vs Anna | 4–1 | 80.00% |
| Heero vs Victor | 1–3 | 25.00% |
| Heero vs Hwoarang | 1–2 | 33.33% |
| Heero vs Jack-8 | 3–0 | 100.00% |
| Heero vs Feng | 3–0 | 100.00% |
| Heero vs Lee | 1–2 | 33.33% |
| Heero vs Panda | 1–2 | 33.33% |
| Heero vs Clive | 0–3 | 0.00% |
| Heero vs Paul | 2–0 | 100.00% |
| Heero vs Yoshimitsu | 2–0 | 100.00% |
| Heero vs Leo | 0–2 | 0.00% |
| Heero vs Kuma | 0–2 | 0.00% |
| Heero vs Jun | 2–0 | 100.00% |
| Heero vs Raven | 2–0 | 100.00% |
| Heero vs Lars | 0–1 | 0.00% |
| Heero vs Alisa | 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.