| Santos vs Armor King | 74–82 | 47.44% |
| Santos vs King | 59–73 | 44.70% |
| Santos vs Steve | 41–61 | 40.20% |
| Santos vs Jin | 48–52 | 48.00% |
| Santos vs Law | 41–54 | 43.16% |
| Santos vs Reina | 45–50 | 47.37% |
| Santos vs Hwoarang | 50–44 | 53.19% |
| Santos vs Bryan | 59–25 | 70.24% |
| Santos vs Kazuya | 45–39 | 53.57% |
| Santos vs Eddy | 40–30 | 57.14% |
| Santos vs Yoshimitsu | 31–38 | 44.93% |
| Santos vs Lili | 33–34 | 49.25% |
| Santos vs Jun | 26–41 | 38.81% |
| Santos vs Lee | 34–26 | 56.67% |
| Santos vs Heihachi | 32–27 | 54.24% |
| Santos vs Xiaoyu | 28–30 | 48.28% |
| Santos vs Miary Zo | 24–34 | 41.38% |
| Santos vs Dragunov | 32–24 | 57.14% |
| Santos vs Lars | 24–30 | 44.44% |
| Santos vs Fahkumram | 26–26 | 50.00% |
| Santos vs Clive | 16–28 | 36.36% |
| Santos vs Paul | 23–17 | 57.50% |
| Santos vs Azucena | 19–21 | 47.50% |
| Santos vs Victor | 15–23 | 39.47% |
| Santos vs Leroy | 16–21 | 43.24% |
| Santos vs Asuka | 18–18 | 50.00% |
| Santos vs Alisa | 14–16 | 46.67% |
| Santos vs Lidia | 15–15 | 50.00% |
| Santos vs Feng | 12–17 | 41.38% |
| Santos vs Leo | 10–16 | 38.46% |
| Santos vs Claudio | 4–21 | 16.00% |
| Santos vs Devil Jin | 10–14 | 41.67% |
| Santos vs Shaheen | 12–12 | 50.00% |
| Santos vs Nina | 10–14 | 41.67% |
| Santos vs Raven | 15–9 | 62.50% |
| Santos vs Anna | 9–15 | 37.50% |
| Santos vs Kuma | 13–9 | 59.09% |
| Santos vs Zafina | 5–9 | 35.71% |
| Santos vs Jack-8 | 6–3 | 66.67% |
| Santos vs Panda | 3–0 | 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.