| Matthew Mack vs King | 181–174 | 50.99% |
| Matthew Mack vs Kazuya | 155–170 | 47.69% |
| Matthew Mack vs Jin | 139–176 | 44.13% |
| Matthew Mack vs Reina | 107–136 | 44.03% |
| Matthew Mack vs Bryan | 103–122 | 45.78% |
| Matthew Mack vs Steve | 110–111–1 | 49.77% |
| Matthew Mack vs Hwoarang | 92–126 | 42.20% |
| Matthew Mack vs Law | 107–109 | 49.54% |
| Matthew Mack vs Eddy | 94–97 | 49.21% |
| Matthew Mack vs Lili | 77–82 | 48.43% |
| Matthew Mack vs Jun | 84–72 | 53.85% |
| Matthew Mack vs Dragunov | 76–76 | 50.00% |
| Matthew Mack vs Azucena | 83–56 | 59.71% |
| Matthew Mack vs Yoshimitsu | 58–65 | 47.15% |
| Matthew Mack vs Heihachi | 50–73 | 40.65% |
| Matthew Mack vs Lars | 63–58 | 52.07% |
| Matthew Mack vs Asuka | 53–67 | 44.17% |
| Matthew Mack vs Paul | 44–73 | 37.61% |
| Matthew Mack vs Xiaoyu | 59–48 | 55.14% |
| Matthew Mack vs Fahkumram | 54–49 | 52.43% |
| Matthew Mack vs Lee | 51–50 | 50.50% |
| Matthew Mack vs Nina | 47–48 | 49.47% |
| Matthew Mack vs Feng | 42–46 | 47.73% |
| Matthew Mack vs Lidia | 45–42 | 51.72% |
| Matthew Mack vs Victor | 41–44–1 | 48.24% |
| Matthew Mack vs Leo | 26–59 | 30.59% |
| Matthew Mack vs Armor King | 35–45 | 43.75% |
| Matthew Mack vs Clive | 34–45 | 43.04% |
| Matthew Mack vs Raven | 32–39 | 45.07% |
| Matthew Mack vs Alisa | 24–44 | 35.29% |
| Matthew Mack vs Devil Jin | 27–40 | 40.30% |
| Matthew Mack vs Leroy | 36–30 | 54.55% |
| Matthew Mack vs Jack-8 | 29–31 | 48.33% |
| Matthew Mack vs Claudio | 23–33 | 41.07% |
| Matthew Mack vs Zafina | 20–26 | 43.48% |
| Matthew Mack vs Kuma | 26–19 | 57.78% |
| Matthew Mack vs Anna | 17–26 | 39.53% |
| Matthew Mack vs Shaheen | 15–14 | 51.72% |
| Matthew Mack vs Panda | 4–15 | 21.05% |
| Matthew Mack vs Miary Zo | 5–4 | 55.56% |
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.