| Neptunephantom vs Kazuya | 82–67 | 55.03% |
| Neptunephantom vs King | 76–68 | 52.78% |
| Neptunephantom vs Bryan | 69–73 | 48.59% |
| Neptunephantom vs Jin | 63–74 | 45.99% |
| Neptunephantom vs Reina | 68–67 | 50.37% |
| Neptunephantom vs Hwoarang | 71–56 | 55.91% |
| Neptunephantom vs Paul | 63–42 | 60.00% |
| Neptunephantom vs Lee | 42–61 | 40.78% |
| Neptunephantom vs Steve | 48–48 | 50.00% |
| Neptunephantom vs Dragunov | 42–52 | 44.68% |
| Neptunephantom vs Law | 36–53 | 40.45% |
| Neptunephantom vs Yoshimitsu | 47–42 | 52.81% |
| Neptunephantom vs Feng | 49–34 | 59.04% |
| Neptunephantom vs Jun | 44–36 | 55.00% |
| Neptunephantom vs Lili | 40–37 | 51.95% |
| Neptunephantom vs Heihachi | 36–40 | 47.37% |
| Neptunephantom vs Lars | 35–40 | 46.67% |
| Neptunephantom vs Devil Jin | 34–30 | 53.12% |
| Neptunephantom vs Xiaoyu | 26–36 | 41.94% |
| Neptunephantom vs Asuka | 31–25 | 55.36% |
| Neptunephantom vs Jack-8 | 31–22 | 58.49% |
| Neptunephantom vs Nina | 20–33 | 37.74% |
| Neptunephantom vs Leo | 29–23 | 55.77% |
| Neptunephantom vs Victor | 17–35 | 32.69% |
| Neptunephantom vs Alisa | 33–18 | 64.71% |
| Neptunephantom vs Leroy | 25–22 | 53.19% |
| Neptunephantom vs Raven | 14–32 | 30.43% |
| Neptunephantom vs Azucena | 21–23 | 47.73% |
| Neptunephantom vs Eddy | 19–24 | 44.19% |
| Neptunephantom vs Claudio | 20–19 | 51.28% |
| Neptunephantom vs Shaheen | 19–16 | 54.29% |
| Neptunephantom vs Kuma | 14–17 | 45.16% |
| Neptunephantom vs Lidia | 10–18 | 35.71% |
| Neptunephantom vs Zafina | 13–14 | 48.15% |
| Neptunephantom vs Clive | 9–10 | 47.37% |
| Neptunephantom vs Anna | 4–4 | 50.00% |
| Neptunephantom vs Fahkumram | 0–4 | 0.00% |
| Neptunephantom vs Panda | 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.