| Master Chief vs Hwoarang | 9–10 | 47.37% |
| Master Chief vs King | 14–4 | 77.78% |
| Master Chief vs Dragunov | 11–4 | 73.33% |
| Master Chief vs Lars | 11–1 | 91.67% |
| Master Chief vs Bryan | 9–1 | 90.00% |
| Master Chief vs Lee | 8–2 | 80.00% |
| Master Chief vs Jin | 5–4 | 55.56% |
| Master Chief vs Asuka | 5–4 | 55.56% |
| Master Chief vs Steve | 7–1 | 87.50% |
| Master Chief vs Nina | 2–6 | 25.00% |
| Master Chief vs Paul | 4–2 | 66.67% |
| Master Chief vs Kazuya | 3–3 | 50.00% |
| Master Chief vs Jun | 5–1 | 83.33% |
| Master Chief vs Eddy | 3–3 | 50.00% |
| Master Chief vs Devil Jin | 4–1 | 80.00% |
| Master Chief vs Yoshimitsu | 2–2 | 50.00% |
| Master Chief vs Lili | 1–3 | 25.00% |
| Master Chief vs Leo | 2–2 | 50.00% |
| Master Chief vs Azucena | 2–2 | 50.00% |
| Master Chief vs Alisa | 2–1 | 66.67% |
| Master Chief vs Leroy | 1–2 | 33.33% |
| Master Chief vs Reina | 2–1 | 66.67% |
| Master Chief vs Lidia | 2–1 | 66.67% |
| Master Chief vs Shaheen | 0–3 | 0.00% |
| Master Chief vs Kuma | 2–1 | 66.67% |
| Master Chief vs Victor | 2–0 | 100.00% |
| Master Chief vs Raven | 2–0 | 100.00% |
| Master Chief vs Law | 0–1 | 0.00% |
| Master Chief vs Feng | 0–1 | 0.00% |
| Master Chief vs Claudio | 1–0 | 100.00% |
| Master Chief vs Xiaoyu | 1–0 | 100.00% |
| Master Chief vs Jack-8 | 0–1 | 0.00% |
| Master Chief 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.