| Master Spammer vs Kazuya | 24–15 | 61.54% |
| Master Spammer vs King | 20–16 | 55.56% |
| Master Spammer vs Dragunov | 18–18 | 50.00% |
| Master Spammer vs Reina | 12–17 | 41.38% |
| Master Spammer vs Jin | 12–16 | 42.86% |
| Master Spammer vs Bryan | 14–14 | 50.00% |
| Master Spammer vs Law | 8–18 | 30.77% |
| Master Spammer vs Azucena | 12–13 | 48.00% |
| Master Spammer vs Steve | 11–12 | 47.83% |
| Master Spammer vs Hwoarang | 8–14 | 36.36% |
| Master Spammer vs Lee | 14–7 | 66.67% |
| Master Spammer vs Lili | 8–10 | 44.44% |
| Master Spammer vs Yoshimitsu | 9–8 | 52.94% |
| Master Spammer vs Jack-8 | 7–9 | 43.75% |
| Master Spammer vs Lars | 5–10 | 33.33% |
| Master Spammer vs Paul | 5–9 | 35.71% |
| Master Spammer vs Jun | 8–6 | 57.14% |
| Master Spammer vs Victor | 8–6 | 57.14% |
| Master Spammer vs Asuka | 4–7 | 36.36% |
| Master Spammer vs Kuma | 6–4 | 60.00% |
| Master Spammer vs Leo | 6–3 | 66.67% |
| Master Spammer vs Claudio | 6–3 | 66.67% |
| Master Spammer vs Eddy | 1–8 | 11.11% |
| Master Spammer vs Devil Jin | 6–2 | 75.00% |
| Master Spammer vs Feng | 3–5 | 37.50% |
| Master Spammer vs Panda | 4–3 | 57.14% |
| Master Spammer vs Raven | 2–5 | 28.57% |
| Master Spammer vs Leroy | 2–4 | 33.33% |
| Master Spammer vs Xiaoyu | 2–3 | 40.00% |
| Master Spammer vs Nina | 3–2 | 60.00% |
| Master Spammer vs Shaheen | 1–3 | 25.00% |
| Master Spammer vs Alisa | 0–3 | 0.00% |
| Master Spammer vs Zafina | 0–2 | 0.00% |
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.