'io
#221Antrim 27 · 38124 · RYC
1112
+7±78
Overall Rank
#221
of 1778
Percentile
Top 12%
of 1778 boats
Rating
1112
Confidence
±78
High
Races
26
Recent Form
+8
avg last 5 races
Last raced: Aug 23, 2025
Rating Over Time
1268-135Direct Competitors
Boats 'io has raced against most often, with head-to-head finish record.
Ahi30980
Santana 35 · Rating 932
13–5
72% wins · 18 races
Jeannette40646
Frers 40 · Rating 1097
9–7–1
56% wins · 17 races
Heart of Gold41327
Olson 911S · Rating 994
11–3–3
79% wins · 17 races
Arcadia3113
Mull/Nash Hybrid · Rating 1077
6–5–4
55% wins · 15 races
Sea Star38022
Cal 39 · Rating 917
8–6–1
57% wins · 15 races
Another GirlXX
Serious Fun · Rating 888
14–1
93% wins · 15 races
Nuckelavee208
Melges 32 · Rating 1098
7–4–4
64% wins · 15 races
Spindrift V18305
Express37 · Rating 967
4–6–4
40% wins · 14 races
Race History
26 racesIntraclub Regatta #3 2025
Aug 23, 2025/1 of 5
+7
1268
Big Daddy Sunday 2025
Mar 9, 2025/12 of 106
-15
1261
Jan 18/19 + Feb 15/16 – MidWinters Regatta · R4
Feb 16, 2025/2 of 15
+29
1276
Jan 18/19 + Feb 15/16 – MidWinters Regatta · R3
Feb 16, 2025/6 of 15
-8
1247
Jan 18/19 + Feb 15/16 – MidWinters Regatta · R1
Jan 18, 2025/3 of 15
+26
1255
California Offshore Race Week Series - Spinnaker Cup
May 25, 2024/4 of 7
-9
1229
Midwinter Regatta Jan 20/21, Feb 17/18 · R3
Feb 17, 2024/1 of 11
+31
1239
Midwinter Regatta Jan 20/21, Feb 17/18 · R2
Jan 21, 2024/4 of 11
-5
1208
Midwinter Regatta Jan 20/21, Feb 17/18 · R1
Jan 20, 2024/2 of 11
+26
1213
Great Pumpkin Saturday 2023 · R3
Oct 28, 2023/3 of 7
-9
1187
Great Pumpkin Saturday 2023 · R2
Oct 28, 2023/1 of 7
+18
1196
Great Pumpkin Saturday 2023 · R1
Oct 28, 2023/2 of 7
+7
1178
SoCal 300
Jun 1, 2023/1 of 6
+10
1171
Spinnaker Cup
May 27, 2023/5 of 7
-19
1161
Big Daddy Sunday 2023
Mar 14, 2023/46 of 80
-48
1179
Big Daddy Saturday 2023
Mar 11, 2023/1 of 5
+13
1227
Great Pumpkin Sunday 2022
Oct 30, 2022/71 of 159
-67
1215
Great Pumpkin Saturday 2022 · R3
Oct 29, 2022/1 of 6
+12
1282
Great Pumpkin Saturday 2022 · R2
Oct 29, 2022/2 of 6
-4
1270
Great Pumpkin Saturday 2022 · R1
Oct 29, 2022/1 of 6
+12
1274
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 Antrim 27” 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.