| Marcus_M3 vs King | 10–20 | 33.33% |
| Marcus_M3 vs Jin | 9–15 | 37.50% |
| Marcus_M3 vs Hwoarang | 7–14 | 33.33% |
| Marcus_M3 vs Bryan | 5–16 | 23.81% |
| Marcus_M3 vs Kazuya | 8–12 | 40.00% |
| Marcus_M3 vs Law | 8–11 | 42.11% |
| Marcus_M3 vs Steve | 5–12 | 29.41% |
| Marcus_M3 vs Reina | 6–10 | 37.50% |
| Marcus_M3 vs Jun | 7–8 | 46.67% |
| Marcus_M3 vs Armor King | 8–7 | 53.33% |
| Marcus_M3 vs Yoshimitsu | 5–7 | 41.67% |
| Marcus_M3 vs Victor | 7–5 | 58.33% |
| Marcus_M3 vs Lili | 3–8 | 27.27% |
| Marcus_M3 vs Clive | 4–7 | 36.36% |
| Marcus_M3 vs Jack-8 | 7–3 | 70.00% |
| Marcus_M3 vs Lars | 3–7 | 30.00% |
| Marcus_M3 vs Eddy | 6–4 | 60.00% |
| Marcus_M3 vs Fahkumram | 2–8 | 20.00% |
| Marcus_M3 vs Lee | 6–3 | 66.67% |
| Marcus_M3 vs Heihachi | 2–7 | 22.22% |
| Marcus_M3 vs Asuka | 3–5 | 37.50% |
| Marcus_M3 vs Alisa | 4–4 | 50.00% |
| Marcus_M3 vs Leroy | 4–4 | 50.00% |
| Marcus_M3 vs Feng | 4–3 | 57.14% |
| Marcus_M3 vs Nina | 4–3 | 57.14% |
| Marcus_M3 vs Azucena | 6–1 | 85.71% |
| Marcus_M3 vs Paul | 4–2 | 66.67% |
| Marcus_M3 vs Devil Jin | 1–5 | 16.67% |
| Marcus_M3 vs Anna | 1–5 | 16.67% |
| Marcus_M3 vs Xiaoyu | 3–2 | 60.00% |
| Marcus_M3 vs Miary Zo | 4–1 | 80.00% |
| Marcus_M3 vs Dragunov | 2–2 | 50.00% |
| Marcus_M3 vs Lidia | 3–1 | 75.00% |
| Marcus_M3 vs Panda | 1–2 | 33.33% |
| Marcus_M3 vs Zafina | 2–1 | 66.67% |
| Marcus_M3 vs Claudio | 1–1 | 50.00% |
| Marcus_M3 vs Shaheen | 0–2 | 0.00% |
| Marcus_M3 vs Raven | 2–0 | 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.