| Neptuno vs King | 34–25 | 57.63% |
| Neptuno vs Jin | 17–25 | 40.48% |
| Neptuno vs Kazuya | 15–25 | 37.50% |
| Neptuno vs Armor King | 11–21 | 34.38% |
| Neptuno vs Hwoarang | 12–17 | 41.38% |
| Neptuno vs Steve | 9–20 | 31.03% |
| Neptuno vs Bryan | 18–9 | 66.67% |
| Neptuno vs Dragunov | 10–17 | 37.04% |
| Neptuno vs Miary Zo | 17–9 | 65.38% |
| Neptuno vs Reina | 12–12 | 50.00% |
| Neptuno vs Yoshimitsu | 7–15 | 31.82% |
| Neptuno vs Devil Jin | 10–8 | 55.56% |
| Neptuno vs Lars | 11–6 | 64.71% |
| Neptuno vs Law | 7–8 | 46.67% |
| Neptuno vs Paul | 6–8 | 42.86% |
| Neptuno vs Asuka | 8–6 | 57.14% |
| Neptuno vs Lili | 5–9 | 35.71% |
| Neptuno vs Xiaoyu | 10–3 | 76.92% |
| Neptuno vs Jun | 5–8 | 38.46% |
| Neptuno vs Eddy | 7–6 | 53.85% |
| Neptuno vs Lidia | 2–10 | 16.67% |
| Neptuno vs Feng | 2–8 | 20.00% |
| Neptuno vs Alisa | 6–4 | 60.00% |
| Neptuno vs Nina | 3–7 | 30.00% |
| Neptuno vs Zafina | 6–3 | 66.67% |
| Neptuno vs Victor | 5–4 | 55.56% |
| Neptuno vs Clive | 4–5 | 44.44% |
| Neptuno vs Fahkumram | 2–7 | 22.22% |
| Neptuno vs Lee | 4–4 | 50.00% |
| Neptuno vs Azucena | 4–4 | 50.00% |
| Neptuno vs Heihachi | 6–2 | 75.00% |
| Neptuno vs Jack-8 | 4–3 | 57.14% |
| Neptuno vs Shaheen | 4–3 | 57.14% |
| Neptuno vs Leroy | 4–3 | 57.14% |
| Neptuno vs Anna | 2–5 | 28.57% |
| Neptuno vs Leo | 3–1 | 75.00% |
| Neptuno vs Kuma | 2–2 | 50.00% |
| Neptuno vs Panda | 0–2 | 0.00% |
| Neptuno vs Claudio | 0–1 | 0.00% |
| Neptuno vs Raven | 0–1 | 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.