| Kobayashi vs Kazuya | 29–27 | 51.79% |
| Kobayashi vs Reina | 35–13 | 72.92% |
| Kobayashi vs Jin | 29–16 | 64.44% |
| Kobayashi vs Heihachi | 24–20 | 54.55% |
| Kobayashi vs Dragunov | 27–13 | 67.50% |
| Kobayashi vs Bryan | 18–19 | 48.65% |
| Kobayashi vs Steve | 14–21 | 40.00% |
| Kobayashi vs King | 22–9 | 70.97% |
| Kobayashi vs Yoshimitsu | 17–13 | 56.67% |
| Kobayashi vs Hwoarang | 13–13 | 50.00% |
| Kobayashi vs Lars | 13–12 | 52.00% |
| Kobayashi vs Paul | 11–13 | 45.83% |
| Kobayashi vs Law | 15–9 | 62.50% |
| Kobayashi vs Jun | 10–14 | 41.67% |
| Kobayashi vs Asuka | 13–8 | 61.90% |
| Kobayashi vs Leo | 10–10 | 50.00% |
| Kobayashi vs Nina | 14–6 | 70.00% |
| Kobayashi vs Jack-8 | 9–10 | 47.37% |
| Kobayashi vs Feng | 9–10 | 47.37% |
| Kobayashi vs Lee | 9–10 | 47.37% |
| Kobayashi vs Azucena | 12–6 | 66.67% |
| Kobayashi vs Victor | 14–4 | 77.78% |
| Kobayashi vs Raven | 11–7 | 61.11% |
| Kobayashi vs Clive | 7–10 | 41.18% |
| Kobayashi vs Claudio | 9–7 | 56.25% |
| Kobayashi vs Xiaoyu | 6–7 | 46.15% |
| Kobayashi vs Lili | 7–6 | 53.85% |
| Kobayashi vs Alisa | 2–8 | 20.00% |
| Kobayashi vs Shaheen | 2–7 | 22.22% |
| Kobayashi vs Devil Jin | 2–6 | 25.00% |
| Kobayashi vs Zafina | 3–4 | 42.86% |
| Kobayashi vs Eddy | 5–2 | 71.43% |
| Kobayashi vs Kuma | 2–4 | 33.33% |
| Kobayashi vs Leroy | 4–2 | 66.67% |
| Kobayashi vs Lidia | 4–0 | 100.00% |
| Kobayashi vs Panda | 1–1 | 50.00% |
| Kobayashi vs Anna | 2–0 | 100.00% |
| Kobayashi vs Fahkumram | 0–2 | 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.