Alchemy
#83J/105 · 275 · SFYC
1227
+28±38
Overall Rank
#83
of 1752
Percentile
Top 5%
of 1752 boats
Rating
1227
Confidence
±38
High
Races
208
Recent Form
+14
avg last 5 races
Last raced: Jul 11, 2026
Rating Over Time
1304+317Direct Competitors
Boats Alchemy has raced against most often, with head-to-head finish record.
BlackhawkUSA 40
J/105 · Rating 1295
19–125
13% wins · 144 races
Akula16
J/105 · Rating 1191
38–85–1
31% wins · 124 races
Arbitrage116
J/105 · Rating 1258
32–91–1
26% wins · 124 races
Peaches268
J/105 · Rating 1105
59–60
50% wins · 119 races
Arrived!USA 337
J/105 · Rating 1203
81–26
76% wins · 107 races
Aquavitusa103
J/105 · Rating 1024
88–18
83% wins · 106 races
Jabberwocky149
J/105 · Rating 1177
39–67
37% wins · 106 races
Kestrel312
J/105 · Rating 1094
74–26
74% wins · 100 races
Race History
213 racesSYC J/105, J/88 Summer Invitational Regatta · R6
Jul 11, 2026/2 of 19
+28
1304
SYC J/105, J/88 Summer Invitational Regatta · R5
Jul 11, 2026/5 of 19
+19
1276
SYC J/105, J/88 Summer Invitational Regatta · R4
Jul 11, 2026/10 of 19
-2
1257
SYC J/105, J/88 Summer Invitational Regatta · R3
Jul 11, 2026/6 of 19
+14
1259
SYC J/105, J/88 Summer Invitational Regatta · R2
Jul 11, 2026/8 of 19
+9
1245
SYC J/105, J/88 Summer Invitational Regatta · R1
Jul 11, 2026/10 of 19
0
1237
Elite Fleet Regatta · R5
May 17, 2026/13 of 23
-4
1237
Elite Fleet Regatta · R4
May 17, 2026/13 of 23
-5
1240
Elite Fleet Regatta · R3
May 16, 2026/11 of 23
+2
1245
Elite Fleet Regatta · R2
May 16, 2026/9 of 23
+18
1243
Elite Fleet Regatta · R1
May 16, 2026/13 of 23
-3
1225
Friday Night Races April 3 to September
Apr 10, 2026/3 of 11
-3
1228
SYC J/105 J/88 Spring Invitational Regatta · R3
Mar 21, 2026/RET
-12
1231
SYC J/105 J/88 Spring Invitational Regatta · R2
Mar 21, 2026/10 of 20
+7
1243
SYC J/105 J/88 Spring Invitational Regatta · R1
Mar 21, 2026/15 of 20
-24
1236
Sausalito YC/RegattaPRO Winter One Design · R8
Feb 15, 2026/6 of 20
0
1260
Sausalito YC/RegattaPRO Winter One Design · R7
Feb 15, 2026/4 of 20
+1
1260
Sausalito YC/RegattaPRO Winter One Design · R6
Feb 15, 2026/3 of 20
+19
1259
Sausalito YC/RegattaPRO Winter One Design · R5
Feb 15, 2026/4 of 20
+9
1240
Sausalito YC/RegattaPRO Winter One Design · R4
Feb 15, 2026/4 of 20
+12
1231
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 J/105” link above.
The confidence band (±38) 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.