Sir Isaac
#736· 18944 · OIYC
911
+6±50
Overall Rank
#736
of 1751
Percentile
Top 42%
of 1751 boats
Rating
911
Confidence
±50
High
Races
59
Recent Form
+2
avg last 5 races
Last raced: Jan 1, 2026
Rating Over Time
1011+219Direct Competitors
Boats Sir Isaac has raced against most often, with head-to-head finish record.
KahunaUSA27
— · Rating 987
11–13–4
46% wins · 28 races
Tigger22
— · Rating 1002
14–11–3
56% wins · 28 races
Goes to 1119
— · Rating 747
16–11
59% wins · 27 races
White Squall9678
— · Rating 915
4–16–5
20% wins · 25 races
Grace E40622
— · Rating 1233
7–14–4
33% wins · 25 races
Les Chevaux Blancs79052
— · Rating 817
14–11
56% wins · 25 races
String Theory69087
— · Rating 1079
2–14–9
12% wins · 25 races
—gnarwhal32597
— · Rating 300
16–8–1
67% wins · 25 races
Race History
51 racesRace to the Straits
Jan 1, 2026/1 of 3
+6
1011
Winter Vashon (December 6, 2025) SSS -1
Dec 6, 2025/1 of 8
+28
1004
Swiftsure International Yacht Race 2025
May 24, 2025/1 of 7
+28
977
Duwamish Head
Jan 4, 2025/7 of 9
-24
948
Duwamish Head
Jan 4, 2025/7 of 9
-27
972
Duwamish Head
Jan 4, 2025/7 of 9
-30
999
Foulweather Bluff Race
Jan 1, 2025/3 of 5
-7
1130
Race to the Straits
Jan 1, 2025/2 of 7
-100
1029
Winter Vashon (December 7, 2024) SSS -1
Dec 7, 2024/2 of 10
+17
1101
Classic Mariners Regatta · R2
Jun 1, 2024/4 of 12
+13
1084
Classic Mariners Regatta · R1
Jun 1, 2024/6 of 12
-7
1071
41st Classic Mariners Regatta 2024 · R2
Jun 1, 2024/4 of 12
+10
1078
41st Classic Mariners Regatta 2024 · R1
Jun 1, 2024/6 of 12
-12
1068
Swiftsure International Yacht Race 2024
May 25, 2024/4 of 32
+42
1080
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-28
1038
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-33
1066
24 Islands Race Southern Sound Series
Mar 16, 2024/8 of 12
-39
1099
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-46
1139
GHYC - Islands Race 2024
Mar 16, 2024/8 of 12
-52
1185
Girts Rekevics Memorial Foulweather Race 2024
Feb 24, 2024/1 of 9
+17
1237
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 (±50) 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.