Archimedes
#850Express 27 · 18355 · SSS
861
-33±77
Overall Rank
#850
of 1574
Percentile
Top 54%
of 1574 boats
Rating
861
Confidence
±77
High
Races
61
Recent Form
-26
avg last 5 races
Last raced: Sep 13, 2025
Rating Over Time
1014+105Direct Competitors
Boats Archimedes has raced against most often, with head-to-head finish record.
Arcadia3113
Mull/Nash Hybrid · Rating 1070
17–24–2
41% wins · 43 races
Raven69768
F27 · Rating 760
2–22–7
8% wins · 31 races
Friday Harbor28580
Beneteau 323 · Rating 331
29–1
97% wins · 30 races
Crinan II15
Wyliecat 30 · Rating 957
11–17–1
39% wins · 29 races
Outsider1000
Azzura 310 · Rating 1116
10–19
34% wins · 29 races
Galaxsea28743
Nauticat · Rating 784
20–8–1
71% wins · 29 races
Nancy28890
Wyliecatr 30 · Rating 875
14–10
58% wins · 24 races
Freedom18230
Worth 40 · Rating 927
13–8–1
62% wins · 22 races
Race History
61 racesHalf Moon Bay Race
Sep 13, 2025/8 of 10
-33
1014
Delta Ditch Run 2025
Jun 7, 2025/60 of 76
-20
1047
Sort of Singlehanded North Bay
Apr 26, 2025/5 of 10
-10
1068
Half Moon Bay Race
Sep 7, 2024/11 of 14
-59
1078
Anything Goes North Bay
Apr 22, 2023/3 of 6
-7
1137
Drakes Bay Races · R2
Aug 23, 2020/7 of 27
-25
1144
Drakes Bay Races · R12
Aug 23, 2020/2 of 14
-4
1169
Drakes Bay Races · R1
Aug 22, 2020/4 of 27
+20
1172
Drakes Bay Races · R11
Aug 22, 2020/1 of 14
+15
1152
Round the Rocks
Aug 8, 2020/1 of 6
+17
1137
Corinthian
Feb 29, 2020/87 of 131
-17
1120
Vallejo 1-2 · R2
Oct 20, 2019/11 of 49
+1
1138
Vallejo 1-2 · R1
Oct 19, 2019/2 of 5
+6
1137
Half Moon Bay Race
Sep 14, 2019/3 of 15
+18
1131
Drakes Bay Races · R2
Aug 25, 2019/2 of 5
+2
1114
Drakes Bay Races · R12
Aug 25, 2019/3 of 15
+14
1112
Drakes Bay Races · R11
Aug 24, 2019/1 of 15
+34
1098
Drakes Bay Races · R1
Aug 24, 2019/1 of 5
+12
1064
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 | 1014 | -33 |
| Jun 7, 2025 | Delta Ditch Run 2025 | 60 / 76 | 1047 | -20 |
| Apr 26, 2025 | Sort of Singlehanded North Bay | 5 / 10 | 1068 | -10 |
| Sep 7, 2024 | Half Moon Bay Race | 11 / 14 | 1078 | -59 |
| Apr 22, 2023 | Anything Goes North Bay | 3 / 6 | 1137 | -7 |
| Aug 23, 2020 | Drakes Bay Races · R2 | 7 / 27 | 1144 | -25 |
| Aug 23, 2020 | Drakes Bay Races · R12 | 2 / 14 | 1169 | -4 |
| Aug 22, 2020 | Drakes Bay Races · R1 | 4 / 27 | 1172 | +20 |
| Aug 22, 2020 | Drakes Bay Races · R11 | 1 / 14 | 1152 | +15 |
| Aug 8, 2020 | Round the Rocks | 1 / 6 | 1137 | +17 |
| Feb 29, 2020 | Corinthian | 87 / 131 | 1120 | -17 |
| Oct 20, 2019 | Vallejo 1-2 · R2 | 11 / 49 | 1138 | +1 |
| Oct 19, 2019 | Vallejo 1-2 · R1 | 2 / 5 | 1137 | +6 |
| Sep 14, 2019 | Half Moon Bay Race | 3 / 15 | 1131 | +18 |
| Aug 25, 2019 | Drakes Bay Races · R2 | 2 / 5 | 1114 | +2 |
| Aug 25, 2019 | Drakes Bay Races · R12 | 3 / 15 | 1112 | +14 |
| Aug 24, 2019 | Drakes Bay Races · R11 | 1 / 15 | 1098 | +34 |
| Aug 24, 2019 | Drakes Bay Races · R1 | 1 / 5 | 1064 | +12 |
| 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.