Sir Isaac
#123· 18944 · OIYC
842
+25±78
Overall Rank
#123
of 228
Percentile
Top 54%
of 228 boats
Rating
842
Confidence
±78
High
Races
49
Recent Form
-3
avg last 5 races
Last raced: Dec 6, 2025
Rating Over Time
997+206Direct Competitors
Boats Sir Isaac has raced against most often, with head-to-head finish record.
Race History
49 racesWinter Vashon (December 6, 2025) SSS -1
Dec 6, 2025/1 of 8
+25
997
Swiftsure International Yacht Race 2025
May 24, 2025/1 of 7
+25
972
Duwamish Head
Jan 4, 2025/7 of 9
-20
947
Duwamish Head
Jan 4, 2025/7 of 9
-22
968
Duwamish Head
Jan 4, 2025/7 of 9
-24
990
Foulweather Bluff Race
Jan 1, 2025/3 of 5
-3
1088
Race to the Straits
Jan 1, 2025/2 of 7
-74
1014
Winter Vashon (December 7, 2024) SSS -1
Dec 7, 2024/2 of 10
+17
1091
Classic Mariners Regatta · R2
Jun 1, 2024/4 of 12
+13
1074
Classic Mariners Regatta · R1
Jun 1, 2024/6 of 12
-6
1061
41st Classic Mariners Regatta 2024 · R2
Jun 1, 2024/4 of 12
+11
1067
41st Classic Mariners Regatta 2024 · R1
Jun 1, 2024/6 of 12
-11
1057
Swiftsure International Yacht Race 2024
May 25, 2024/4 of 32
+42
1068
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-27
1026
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-32
1053
24 Islands Race Southern Sound Series
Mar 16, 2024/8 of 12
-38
1085
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-44
1123
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-51
1167
Girts Rekevics Memorial Foulweather Race 2024
Feb 24, 2024/1 of 9
+18
1218
Toliva Shoal Race Southern Sound Series
Feb 21, 2024/1 of 10
+20
1200
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 ” link above.
The confidence band (±78) 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.