Archimedes
#909Express 27 · 18355 · SSS
862
-33±77
Overall Rank
#909
of 1797
Percentile
Top 51%
of 1797 boats
Rating
862
Confidence
±77
High
Races
61
Recent Form
-26
avg last 5 races
Last raced: Sep 13, 2025
Rating Over Time
1016+107Direct Competitors
Boats Archimedes has raced against most often, with head-to-head finish record.
Arcadia3113
Mull/Nash Hybrid · Rating 1081
17–24–2
41% wins · 43 races
Raven69768
F27 · Rating 762
2–22–7
8% wins · 31 races
Friday Harbor28580
Beneteau 323 · Rating 338
29–1
97% wins · 30 races
Crinan II15
Wyliecat 30 · Rating 958
11–17–1
39% wins · 29 races
Outsider1000
Azzura 310 · Rating 1110
10–19
34% wins · 29 races
Galaxsea28743
Nauticat · Rating 790
20–8–1
71% wins · 29 races
Nancy28890
Wyliecatr 30 · Rating 905
14–10
58% wins · 24 races
Freedom18230
Worth 40 · Rating 932
13–8–1
62% wins · 22 races
Race History
61 racesHalf Moon Bay Race
Sep 13, 2025/8 of 10
-33
1016
Delta Ditch Run 2025
Jun 7, 2025/60 of 76
-21
1049
Sort of Singlehanded North Bay
Apr 26, 2025/5 of 10
-10
1070
Half Moon Bay Race
Sep 7, 2024/11 of 14
-59
1080
Anything Goes North Bay
Apr 22, 2023/3 of 6
-7
1139
Drakes Bay Races · R2
Aug 23, 2020/7 of 27
-24
1147
Drakes Bay Races · R12
Aug 23, 2020/2 of 14
-4
1171
Drakes Bay Races · R1
Aug 22, 2020/4 of 27
+20
1175
Drakes Bay Races · R11
Aug 22, 2020/1 of 14
+16
1155
Round the Rocks
Aug 8, 2020/1 of 6
+16
1140
Corinthian
Feb 29, 2020/87 of 131
-12
1124
Vallejo 1-2 · R2
Oct 20, 2019/11 of 49
-2
1136
Vallejo 1-2 · R1
Oct 19, 2019/2 of 5
+6
1137
Half Moon Bay Race
Sep 14, 2019/3 of 15
+18
1132
Drakes Bay Races · R2
Aug 25, 2019/2 of 5
+1
1114
Drakes Bay Races · R12
Aug 25, 2019/3 of 15
+14
1113
Drakes Bay Races · R11
Aug 24, 2019/1 of 15
+34
1099
Drakes Bay Races · R1
Aug 24, 2019/1 of 5
+13
1065
Corinthian
Feb 23, 2019/14 of 34
0
1052
Three Bridge Fiasco
Jan 26, 2019/99 of 265
+5
1052
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Sep 13, 2025 | Half Moon Bay Race | 8 / 10 | 1016 | -33 |
| Jun 7, 2025 | Delta Ditch Run 2025 | 60 / 76 | 1049 | -21 |
| Apr 26, 2025 | Sort of Singlehanded North Bay | 5 / 10 | 1070 | -10 |
| Sep 7, 2024 | Half Moon Bay Race | 11 / 14 | 1080 | -59 |
| Apr 22, 2023 | Anything Goes North Bay | 3 / 6 | 1139 | -7 |
| Aug 23, 2020 | Drakes Bay Races · R2 | 7 / 27 | 1147 | -24 |
| Aug 23, 2020 | Drakes Bay Races · R12 | 2 / 14 | 1171 | -4 |
| Aug 22, 2020 | Drakes Bay Races · R1 | 4 / 27 | 1175 | +20 |
| Aug 22, 2020 | Drakes Bay Races · R11 | 1 / 14 | 1155 | +16 |
| Aug 8, 2020 | Round the Rocks | 1 / 6 | 1140 | +16 |
| Feb 29, 2020 | Corinthian | 87 / 131 | 1124 | -12 |
| Oct 20, 2019 | Vallejo 1-2 · R2 | 11 / 49 | 1136 | -2 |
| Oct 19, 2019 | Vallejo 1-2 · R1 | 2 / 5 | 1137 | +6 |
| Sep 14, 2019 | Half Moon Bay Race | 3 / 15 | 1132 | +18 |
| Aug 25, 2019 | Drakes Bay Races · R2 | 2 / 5 | 1114 | +1 |
| Aug 25, 2019 | Drakes Bay Races · R12 | 3 / 15 | 1113 | +14 |
| Aug 24, 2019 | Drakes Bay Races · R11 | 1 / 15 | 1099 | +34 |
| Aug 24, 2019 | Drakes Bay Races · R1 | 1 / 5 | 1065 | +13 |
| Feb 23, 2019 | Corinthian | 14 / 34 | 1052 | 0 |
| Jan 26, 2019 | Three Bridge Fiasco | 99 / 265 | 1052 | +5 |
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 Express 27” link above.
The confidence band (±77) 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.