Amateurs
#339Viper 640 · US 130 · KHYC
Rating Over Time
1241+263Direct Competitors
Amateurs hasn't raced enough times against the same boats yet to surface direct rivals. Check back after a few more series.
Race History
13 races| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R6 | 3 / 18 | 1241 | +14 |
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R5 | 6 / 18 | 1227 | -9 |
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R4 | 2 / 18 | 1235 | +34 |
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R3 | 2 / 18 | 1201 | +40 |
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R2 | 3 / 18 | 1161 | +44 |
| Aug 10, 2019 | Viper 640 Pacific Coast Championship · R1 | 7 / 18 | 1116 | +2 |
| Aug 19, 2018 | Viper 640 PCC · R7 | 6 / 14 | 1115 | -1 |
| Aug 19, 2018 | Viper 640 PCC · R6 | 6 / 14 | 1116 | -4 |
| Aug 19, 2018 | Viper 640 PCC · R5 | 3 / 14 | 1119 | +45 |
| Aug 18, 2018 | Viper 640 PCC · R4 | 6 / 14 | 1075 | 0 |
| Aug 18, 2018 | Viper 640 PCC · R3 | 5 / 14 | 1074 | -14 |
| Aug 18, 2018 | Viper 640 PCC · R2 | 4 / 14 | 1088 | +110 |
| Aug 18, 2018 | Viper 640 PCC · R1 | 4 / 14 | 978 | +186 |
About the Rating
Ratings are computed using Glicko-2, a chess-style system that considers who you beat and who beat you. Winning against higher-rated boats earns more points than beating lower-rated boats.
The overall rank compares this boat to all others across every class. To see how it stacks up within its class, use the “View all Viper 640” link above.
The confidence band (±315) shows how certain we are about this rating. It narrows as more races are completed and widens during periods of inactivity.
The shaded area on the chart represents the 95% confidence interval — the true skill of this boat likely falls within that range.