| Mr Spiff vs Hwoarang | 108–128 | 45.76% |
| Mr Spiff vs King | 105–117 | 47.30% |
| Mr Spiff vs Jin | 90–105 | 46.15% |
| Mr Spiff vs Steve | 101–83 | 54.89% |
| Mr Spiff vs Kazuya | 97–81 | 54.49% |
| Mr Spiff vs Lars | 85–83 | 50.60% |
| Mr Spiff vs Law | 86–72 | 54.43% |
| Mr Spiff vs Yoshimitsu | 78–80 | 49.37% |
| Mr Spiff vs Bryan | 92–66 | 58.23% |
| Mr Spiff vs Reina | 69–74 | 48.25% |
| Mr Spiff vs Paul | 76–44 | 63.33% |
| Mr Spiff vs Raven | 55–60 | 47.83% |
| Mr Spiff vs Anna | 58–57 | 50.43% |
| Mr Spiff vs Dragunov | 45–63 | 41.67% |
| Mr Spiff vs Lee | 59–49 | 54.63% |
| Mr Spiff vs Jack-8 | 54–53 | 50.47% |
| Mr Spiff vs Asuka | 53–53 | 50.00% |
| Mr Spiff vs Lili | 63–41 | 60.58% |
| Mr Spiff vs Nina | 52–40 | 56.52% |
| Mr Spiff vs Jun | 48–39 | 55.17% |
| Mr Spiff vs Fahkumram | 38–49 | 43.68% |
| Mr Spiff vs Azucena | 40–46 | 46.51% |
| Mr Spiff vs Feng | 40–45 | 47.06% |
| Mr Spiff vs Eddy | 40–40 | 50.00% |
| Mr Spiff vs Leo | 50–29 | 63.29% |
| Mr Spiff vs Leroy | 34–44 | 43.59% |
| Mr Spiff vs Lidia | 36–41 | 46.75% |
| Mr Spiff vs Victor | 36–40 | 47.37% |
| Mr Spiff vs Devil Jin | 32–43 | 42.67% |
| Mr Spiff vs Xiaoyu | 38–33 | 53.52% |
| Mr Spiff vs Alisa | 27–41 | 39.71% |
| Mr Spiff vs Claudio | 38–27 | 58.46% |
| Mr Spiff vs Shaheen | 29–35 | 45.31% |
| Mr Spiff vs Heihachi | 30–34 | 46.88% |
| Mr Spiff vs Zafina | 29–25 | 53.70% |
| Mr Spiff vs Kuma | 20–20 | 50.00% |
| Mr Spiff vs Panda | 11–11 | 50.00% |
| Mr Spiff vs Clive | 5–16 | 23.81% |
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.