Shamrock
#919Harbor 20 · 51 · CYC
778
±56
Overall Rank
#919
of 1355
Percentile
Top 68%
of 1355 boats
Rating
778
Confidence
±56
High
Races
90
Recent Form
+7
avg last 5 races
Last raced: Jan 1, 2026
Rating Over Time
891+100Direct Competitors
Boats Shamrock has raced against most often, with head-to-head finish record.
Z Force97309
— · Rating 1019
12–25–16
32% wins · 53 races
Jabberwock67035
— · Rating 621
5–17–5
23% wins · 27 races
Go Mall28
— · Rating 615
16–2
89% wins · 18 races
Shamrock69473
C&c 41 · Rating 316
3–6–4
33% wins · 13 races
Sailhook52772
— · Rating 841
1–9–3
10% wins · 13 races
Ono32551
— · Rating 759
7–2–4
78% wins · 13 races
Elusive24
— · Rating 1046
0–10
0% wins · 10 races
James BatesUSA 1315
— · Rating 479
0–6–2
0% wins · 8 races
Race History
90 racesJoe McKane Summer Twilight Series · R2
Jan 1, 2026/ENT
0
891
Beer Cans
Jan 1, 2025/6 of 6
-5
891
SBC Championships 2023 · R3
Oct 7, 2023/3 of 6
+12
896
SBC Championships 2023 · R2
Oct 7, 2023/3 of 6
+13
884
SBC Championships 2023 · R1
Oct 7, 2023/3 of 6
+14
871
Navy Cup 2023 · R3
Jul 15, 2023/3 of 5
+4
858
Navy Cup 2023 · R2
Jul 15, 2023/4 of 5
-10
853
Navy Cup 2023 · R1
Jul 15, 2023/2 of 5
+19
864
Navy Cup 2023 · R3
Jul 15, 2023/3 of 5
+5
845
Navy Cup 2023 · R2
Jul 15, 2023/4 of 5
-10
839
Navy Cup 2023 · R1
Jul 15, 2023/2 of 5
+21
849
Navy Cup 2022 · R3
Jul 16, 2022/5 of 7
-17
829
Navy Cup 2022 · R2
Jul 16, 2022/5 of 7
-20
845
Navy Cup 2022 · R1
Jul 16, 2022/5 of 7
-23
865
Neil McGuinness Twilight Series · R4
Sep 3, 2021/2 of 5
-4
889
Neil McGuinness Twilight Series · R3
Aug 21, 2021/1 of 5
0
893
Neil McGuinness Twilight Series · R2
Aug 6, 2021/2 of 5
+10
892
Joe McKane Series (6/4,6/11,6/25,7/9) · R4
Jul 9, 2021/2 of 4
-5
882
Joe McKane Series (6/4,6/11,6/25,7/9) · R3
Jun 25, 2021/2 of 4
0
888
Joe McKane Series (6/4,6/11,6/25,7/9) · R1
Jun 4, 2021/DNF
0
888
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 Harbor 20” link above.
The confidence band (±56) 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.