| Watermamelon vs Kazuya | 139–173 | 44.55% |
| Watermamelon vs Jin | 105–194 | 35.12% |
| Watermamelon vs King | 104–140 | 42.62% |
| Watermamelon vs Hwoarang | 71–125 | 36.22% |
| Watermamelon vs Law | 61–117 | 34.27% |
| Watermamelon vs Reina | 78–100 | 43.82% |
| Watermamelon vs Steve | 73–100 | 42.20% |
| Watermamelon vs Bryan | 78–94 | 45.35% |
| Watermamelon vs Heihachi | 43–86 | 33.33% |
| Watermamelon vs Lili | 49–79 | 38.28% |
| Watermamelon vs Asuka | 50–61–1 | 45.05% |
| Watermamelon vs Paul | 50–61 | 45.05% |
| Watermamelon vs Jun | 45–63 | 41.67% |
| Watermamelon vs Eddy | 25–82 | 23.36% |
| Watermamelon vs Yoshimitsu | 33–66 | 33.33% |
| Watermamelon vs Azucena | 43–50 | 46.24% |
| Watermamelon vs Dragunov | 32–60 | 34.78% |
| Watermamelon vs Xiaoyu | 36–49 | 42.35% |
| Watermamelon vs Devil Jin | 33–48 | 40.74% |
| Watermamelon vs Fahkumram | 22–58 | 27.50% |
| Watermamelon vs Victor | 23–56 | 29.11% |
| Watermamelon vs Nina | 33–43 | 43.42% |
| Watermamelon vs Alisa | 30–44 | 40.54% |
| Watermamelon vs Lidia | 24–49 | 32.88% |
| Watermamelon vs Lars | 21–47 | 30.88% |
| Watermamelon vs Jack-8 | 27–32 | 45.76% |
| Watermamelon vs Lee | 23–36 | 38.98% |
| Watermamelon vs Armor King | 17–38 | 30.91% |
| Watermamelon vs Feng | 14–33 | 29.79% |
| Watermamelon vs Clive | 19–27 | 41.30% |
| Watermamelon vs Leo | 15–29 | 34.09% |
| Watermamelon vs Leroy | 12–23 | 34.29% |
| Watermamelon vs Claudio | 14–17 | 45.16% |
| Watermamelon vs Zafina | 9–21 | 30.00% |
| Watermamelon vs Anna | 11–18 | 37.93% |
| Watermamelon vs Miary Zo | 9–18 | 33.33% |
| Watermamelon vs Kuma | 5–20 | 20.00% |
| Watermamelon vs Raven | 9–14 | 39.13% |
| Watermamelon vs Shaheen | 5–10 | 33.33% |
| Watermamelon vs Panda | 2–6 | 25.00% |
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.