Sir Isaac
#788· 18944 · OIYC
842
+25±78
Overall Rank
#788
of 1355
Percentile
Top 58%
of 1355 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.
White Squall9678
— · Rating 908
3–16–5
16% wins · 24 races
Terramoto59902
— · Rating 1169
2–5
29% wins · 7 races
Peer Gynt235
J/105 · Rating 1026
5–1
83% wins · 6 races
Welcomed ChangeN/A
— · Rating 475
5–0–1
100% wins · 6 races
Balder 269927
— · Rating 736
4–1–1
80% wins · 6 races
Fortuna62
— · Rating 556
5–0
100% wins · 5 races
Gusto44119
— · Rating 577
5–0
100% wins · 5 races
Creative51911
J- Boat J-105 · Rating 1095
1–1–3
50% wins · 5 races
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.