Io
#136Antrim 27 · 38124 · RYC
1108
+23±41
Overall Rank
#136
of 1112
Percentile
Top 12%
of 1112 boats
Rating
1108
Confidence
±41
High
Races
44
Recent Form
+3
avg last 5 races
Last raced: Jan 31, 2026
Rating Over Time
1191-448Direct Competitors
Boats Io has raced against most often, with head-to-head finish record.
Sea Star38022
Cal 39 · Rating 914
13–3–4
81% wins · 20 races
Motorcycle Irene28137
Express 27 Fleet · Rating 1155
3–10–7
23% wins · 20 races
Current Affair56
Express 27 · Rating 869
17–0–2
100% wins · 19 races
Hang 2048
Express 27 · Rating 758
17–0
100% wins · 17 races
Ergo40428
Express 27 Fleet · Rating 920
16–1
94% wins · 17 races
Bombora38047
Express 27 Fleet · Rating 1063
14–3
82% wins · 17 races
Ahi30980
Santana 35 · Rating 912
9–3–4
75% wins · 16 races
O'mar28258
Olson 25 · Rating 974
11–4–1
73% wins · 16 races
Race History
50 racesThree Bridge Fiasco
Jan 31, 2026/91 of 302
+23
1191
46th Annual Doublehanded Farallones Race
Apr 5, 2025/1 of 6
+13
1168
Round the Rocks
Mar 29, 2025/17 of 98
-13
1155
Corinthian
Feb 22, 2025/16 of 91
-8
1168
2025 Berkeley Midwinters · R7
Feb 8, 2025/4 of 12
-1
1176
Three Bridge Fiasco
Jan 25, 2025/4 of 328
+57
1177
2025 Berkeley Midwinters · R1
Nov 9, 2024/7 of 10
-24
1120
Offshore Series · R2
May 18, 2024/1 of 4
+10
1254
Offshore Series · R1
Apr 27, 2024/10 of 6
-15
1244
45th Annual Doublehanded Farallones Race
Apr 13, 2024/9 of 41
-4
1144
Corinthian
Feb 24, 2024/23 of 89
-14
1148
2024 Midwinters · R7
Feb 10, 2024/2 of 10
+6
1162
Three Bridge Fiasco
Jan 27, 2024/RET
-71
1156
2024 Midwinters · R3
Dec 9, 2023/3 of 10
-2
1226
2024 Midwinters · R1
Nov 11, 2023/1 of 10
+16
1228
Offshore Series
Apr 29, 2023/1 of 9
+26
1358
2023 Midwinters · R7
Feb 11, 2023/2 of 12
+14
1213
Three Bridge Fiasco
Jan 28, 2023/20 of 256
-22
1198
2023 Jack Frost Series · R6
Jan 7, 2023/1 of 8
+16
1220
2023 Jack Frost Series · R5
Jan 7, 2023/1 of 8
+19
1205
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Jan 31, 2026 | Three Bridge Fiasco | 91 / 302 | 1191 | +23 |
| Apr 5, 2025 | 46th Annual Doublehanded Farallones Race | 1 / 6 | 1168 | +13 |
| Mar 29, 2025 | Round the Rocks | 17 / 98 | 1155 | -13 |
| Feb 22, 2025 | Corinthian | 16 / 91 | 1168 | -8 |
| Feb 8, 2025 | 2025 Berkeley Midwinters · R7 | 4 / 12 | 1176 | -1 |
| Jan 25, 2025 | Three Bridge Fiasco | 4 / 328 | 1177 | +57 |
| Nov 9, 2024 | 2025 Berkeley Midwinters · R1 | 7 / 10 | 1120 | -24 |
| May 18, 2024 | Offshore Series · R2 | 1 / 4 | 1254 | +10 |
| Apr 27, 2024 | Offshore Series · R1 | 10 / 6 | 1244 | -15 |
| Apr 13, 2024 | 45th Annual Doublehanded Farallones Race | 9 / 41 | 1144 | -4 |
| Feb 24, 2024 | Corinthian | 23 / 89 | 1148 | -14 |
| Feb 10, 2024 | 2024 Midwinters · R7 | 2 / 10 | 1162 | +6 |
| Jan 27, 2024 | Three Bridge Fiasco | RET / 297 | 1156 | -71 |
| Dec 9, 2023 | 2024 Midwinters · R3 | 3 / 10 | 1226 | -2 |
| Nov 11, 2023 | 2024 Midwinters · R1 | 1 / 10 | 1228 | +16 |
| Apr 29, 2023 | Offshore Series | 1 / 9 | 1358 | +26 |
| Feb 11, 2023 | 2023 Midwinters · R7 | 2 / 12 | 1213 | +14 |
| Jan 28, 2023 | Three Bridge Fiasco | 20 / 256 | 1198 | -22 |
| Jan 7, 2023 | 2023 Jack Frost Series · R6 | 1 / 8 | 1220 | +16 |
| Jan 7, 2023 | 2023 Jack Frost Series · R5 | 1 / 8 | 1205 | +19 |
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 (±41) 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.