Alchemy
#31J/105 · 275 · SFYC
1146
-3±44
Overall Rank
#31
of 228
Percentile
Top 14%
of 228 boats
Rating
1146
Confidence
±44
High
Races
198
Recent Form
-7
avg last 5 races
Last raced: Apr 10, 2026
Rating Over Time
1235+248Direct Competitors
Boats Alchemy has raced against most often, with head-to-head finish record.
Race History
202 racesFriday Night Races April 3 to September
Apr 10, 2026/3 of 11
-3
1235
SYC J/105 J/88 Spring Invitational Regatta · R3
Mar 21, 2026/RET
-12
1238
SYC J/105 J/88 Spring Invitational Regatta · R2
Mar 21, 2026/10 of 20
+6
1250
SYC J/105 J/88 Spring Invitational Regatta · R1
Mar 21, 2026/15 of 20
-25
1243
Sausalito YC/RegattaPRO Winter One Design · R8
Feb 15, 2026/6 of 20
0
1268
Sausalito YC/RegattaPRO Winter One Design · R7
Feb 15, 2026/4 of 20
+1
1268
Sausalito YC/RegattaPRO Winter One Design · R6
Feb 15, 2026/3 of 20
+19
1267
Sausalito YC/RegattaPRO Winter One Design · R5
Feb 15, 2026/4 of 20
+9
1248
Sausalito YC/RegattaPRO Winter One Design · R4
Feb 15, 2026/4 of 20
+12
1239
Sausalito YC/RegattaPRO Winter One Design · R3
Feb 15, 2026/16 of 20
-28
1227
Sausalito YC/RegattaPRO Winter One Design · R2
Feb 15, 2026/2 of 20
+20
1255
Sausalito YC/RegattaPRO Winter One Design · R1
Feb 15, 2026/9 of 20
-15
1235
Rolex Big Boat Series · R7
Sep 14, 2025/16 of 27
-7
1251
Rolex Big Boat Series · R6
Sep 13, 2025/11 of 27
0
1258
Rolex Big Boat Series · R5
Sep 13, 2025/1 of 27
+26
1258
Rolex Big Boat Series · R4
Sep 12, 2025/25 of 27
-16
1232
Rolex Big Boat Series · R3
Sep 12, 2025/17 of 27
-8
1248
Rolex Big Boat Series · R2
Sep 11, 2025/13 of 27
-5
1257
Rolex Big Boat Series · R1
Sep 11, 2025/16 of 27
-14
1261
Friday Night Races (second half) · R24
Jul 11, 2025/3 of 15
0
1276
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 (±44) 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.