Archimedes
#871Express 27 · 18355 · SSS
865
-33±77
Overall Rank
#871
of 1638
Percentile
Top 53%
of 1638 boats
Rating
865
Confidence
±77
High
Races
61
Recent Form
-26
avg last 5 races
Last raced: Sep 13, 2025
Rating Over Time
1018+109Direct Competitors
Boats Archimedes has raced against most often, with head-to-head finish record.
Arcadia3113
Mull/Nash Hybrid · Rating 1078
17–24–2
41% wins · 43 races
Raven69768
F27 · Rating 761
2–22–7
8% wins · 31 races
Friday Harbor28580
Beneteau 323 · Rating 340
29–1
97% wins · 30 races
Crinan II15
Wyliecat 30 · Rating 961
11–17–1
39% wins · 29 races
Outsider1000
Azzura 310 · Rating 1118
10–19
34% wins · 29 races
Galaxsea28743
Nauticat · Rating 793
20–8–1
71% wins · 29 races
Nancy28890
Wyliecatr 30 · Rating 907
14–10
58% wins · 24 races
Freedom18230
Worth 40 · Rating 936
13–8–1
62% wins · 22 races
Race History
61 racesHalf Moon Bay Race
Sep 13, 2025/8 of 10
-33
1018
Delta Ditch Run 2025
Jun 7, 2025/60 of 76
-21
1051
Sort of Singlehanded North Bay
Apr 26, 2025/5 of 10
-10
1072
Half Moon Bay Race
Sep 7, 2024/11 of 14
-59
1082
Anything Goes North Bay
Apr 22, 2023/3 of 6
-7
1141
Drakes Bay Races · R2
Aug 23, 2020/7 of 27
-24
1149
Drakes Bay Races · R12
Aug 23, 2020/2 of 14
-4
1173
Drakes Bay Races · R1
Aug 22, 2020/4 of 27
+20
1177
Drakes Bay Races · R11
Aug 22, 2020/1 of 14
+16
1157
Round the Rocks
Aug 8, 2020/1 of 6
+16
1141
Corinthian
Feb 29, 2020/87 of 131
-9
1125
Vallejo 1-2 · R2
Oct 20, 2019/11 of 49
+2
1134
Vallejo 1-2 · R1
Oct 19, 2019/2 of 5
+6
1132
Half Moon Bay Race
Sep 14, 2019/3 of 15
+18
1126
Drakes Bay Races · R2
Aug 25, 2019/2 of 5
+2
1108
Drakes Bay Races · R12
Aug 25, 2019/3 of 15
+14
1107
Drakes Bay Races · R11
Aug 24, 2019/1 of 15
+35
1092
Drakes Bay Races · R1
Aug 24, 2019/1 of 5
+13
1058
Corinthian
Feb 23, 2019/14 of 34
+1
1045
Three Bridge Fiasco
Jan 26, 2019/99 of 265
-2
1044
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Sep 13, 2025 | Half Moon Bay Race | 8 / 10 | 1018 | -33 |
| Jun 7, 2025 | Delta Ditch Run 2025 | 60 / 76 | 1051 | -21 |
| Apr 26, 2025 | Sort of Singlehanded North Bay | 5 / 10 | 1072 | -10 |
| Sep 7, 2024 | Half Moon Bay Race | 11 / 14 | 1082 | -59 |
| Apr 22, 2023 | Anything Goes North Bay | 3 / 6 | 1141 | -7 |
| Aug 23, 2020 | Drakes Bay Races · R2 | 7 / 27 | 1149 | -24 |
| Aug 23, 2020 | Drakes Bay Races · R12 | 2 / 14 | 1173 | -4 |
| Aug 22, 2020 | Drakes Bay Races · R1 | 4 / 27 | 1177 | +20 |
| Aug 22, 2020 | Drakes Bay Races · R11 | 1 / 14 | 1157 | +16 |
| Aug 8, 2020 | Round the Rocks | 1 / 6 | 1141 | +16 |
| Feb 29, 2020 | Corinthian | 87 / 131 | 1125 | -9 |
| Oct 20, 2019 | Vallejo 1-2 · R2 | 11 / 49 | 1134 | +2 |
| Oct 19, 2019 | Vallejo 1-2 · R1 | 2 / 5 | 1132 | +6 |
| Sep 14, 2019 | Half Moon Bay Race | 3 / 15 | 1126 | +18 |
| Aug 25, 2019 | Drakes Bay Races · R2 | 2 / 5 | 1108 | +2 |
| Aug 25, 2019 | Drakes Bay Races · R12 | 3 / 15 | 1107 | +14 |
| Aug 24, 2019 | Drakes Bay Races · R11 | 1 / 15 | 1092 | +35 |
| Aug 24, 2019 | Drakes Bay Races · R1 | 1 / 5 | 1058 | +13 |
| Feb 23, 2019 | Corinthian | 14 / 34 | 1045 | +1 |
| Jan 26, 2019 | Three Bridge Fiasco | 99 / 265 | 1044 | -2 |
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.