| Marcus the Worm vs Jin | 12–8 | 60.00% |
| Marcus the Worm vs King | 8–7 | 53.33% |
| Marcus the Worm vs Law | 7–5 | 58.33% |
| Marcus the Worm vs Reina | 9–3 | 75.00% |
| Marcus the Worm vs Armor King | 9–3 | 75.00% |
| Marcus the Worm vs Hwoarang | 8–3 | 72.73% |
| Marcus the Worm vs Bryan | 4–7 | 36.36% |
| Marcus the Worm vs Kazuya | 5–6 | 45.45% |
| Marcus the Worm vs Yoshimitsu | 3–7 | 30.00% |
| Marcus the Worm vs Steve | 7–1 | 87.50% |
| Marcus the Worm vs Lee | 5–2 | 71.43% |
| Marcus the Worm vs Jack-8 | 3–3 | 50.00% |
| Marcus the Worm vs Jun | 6–0 | 100.00% |
| Marcus the Worm vs Heihachi | 2–3 | 40.00% |
| Marcus the Worm vs Fahkumram | 4–1 | 80.00% |
| Marcus the Worm vs Lili | 2–2 | 50.00% |
| Marcus the Worm vs Lars | 0–4 | 0.00% |
| Marcus the Worm vs Asuka | 2–1 | 66.67% |
| Marcus the Worm vs Dragunov | 3–0 | 100.00% |
| Marcus the Worm vs Panda | 1–2 | 33.33% |
| Marcus the Worm vs Miary Zo | 0–3 | 0.00% |
| Marcus the Worm vs Paul | 2–0 | 100.00% |
| Marcus the Worm vs Leo | 2–0 | 100.00% |
| Marcus the Worm vs Feng | 0–1 | 0.00% |
| Marcus the Worm vs Victor | 1–0 | 100.00% |
| Marcus the Worm vs Eddy | 0–1 | 0.00% |
| Marcus the Worm vs Clive | 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.