Thunderstruck

#427

J/105 · CAN 358 · RCYC

951
+42±74
Overall Rank
#427
of 1183
Percentile
Top 36%
of 1183 boats
Rating
951
Confidence
±74
High
Races
30
Recent Form
-7
avg last 5 races
View all J/105Compare
Last raced: Sep 20, 2025

Rating Over Time

1100+308

Race History

30 races
+42
1100
-43
1082
+13
1125
-24
1111
-43
1135
-18
1179
+3
1197
-13
1195
-5
1208
-24
1213
+28
1236
+17
1208
+12
1191
-28
1179
-22
1208
+38
1230
+43
1192
-15
1149
+32
1164

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 J/105” link above.

The confidence band (±74) 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.