| Massa vs Steve | 20–7 | 74.07% |
| Massa vs Kazuya | 18–2 | 90.00% |
| Massa vs Lidia | 15–3 | 83.33% |
| Massa vs Jin | 12–4 | 75.00% |
| Massa vs King | 12–3 | 80.00% |
| Massa vs Heihachi | 13–2 | 86.67% |
| Massa vs Jun | 11–3 | 78.57% |
| Massa vs Azucena | 12–2 | 85.71% |
| Massa vs Paul | 12–1 | 92.31% |
| Massa vs Reina | 9–3 | 75.00% |
| Massa vs Dragunov | 10–1 | 90.91% |
| Massa vs Yoshimitsu | 8–2 | 80.00% |
| Massa vs Eddy | 7–3 | 70.00% |
| Massa vs Hwoarang | 8–1 | 88.89% |
| Massa vs Bryan | 8–0 | 100.00% |
| Massa vs Raven | 6–2 | 75.00% |
| Massa vs Law | 6–1 | 85.71% |
| Massa vs Lars | 6–1 | 85.71% |
| Massa vs Jack-8 | 6–0 | 100.00% |
| Massa vs Lili | 5–1 | 83.33% |
| Massa vs Clive | 5–1 | 83.33% |
| Massa vs Leo | 4–1 | 80.00% |
| Massa vs Shaheen | 5–0 | 100.00% |
| Massa vs Nina | 4–0 | 100.00% |
| Massa vs Anna | 2–2 | 50.00% |
| Massa vs Miary Zo | 2–2 | 50.00% |
| Massa vs Asuka | 1–2 | 33.33% |
| Massa vs Devil Jin | 3–0 | 100.00% |
| Massa vs Kuma | 2–1 | 66.67% |
| Massa vs Victor | 3–0 | 100.00% |
| Massa vs Armor King | 3–0 | 100.00% |
| Massa vs Feng | 2–0 | 100.00% |
| Massa vs Lee | 2–0 | 100.00% |
| Massa vs Leroy | 2–0 | 100.00% |
| Massa vs Alisa | 0–1 | 0.00% |
| Massa vs Panda | 1–0 | 100.00% |
| Massa vs Fahkumram | 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.