Jam Session
#808J/105 · usa434 · StFYC
778
-17±254
Overall Rank
#808
of 1115
Percentile
Top 72%
of 1115 boats
Rating
778
Confidence
±254
Low
Races
127
Recent Form
-17
avg last 5 races
Last raced: Sep 15, 2022
Rating Over Time
1287+303Direct Competitors
Boats Jam Session has raced against most often, with head-to-head finish record.
Akula16
J/105 · Rating 1193
69–36
66% wins · 105 races
BlackhawkUSA 40
J/105 · Rating 1298
33–72
31% wins · 105 races
Arbitrage116
J/105 · Rating 1260
33–60
35% wins · 93 races
Jabberwocky149
J/105 · Rating 1179
62–27–1
70% wins · 90 races
Donkey Jack26
J/105 · Rating 1260
55–28
66% wins · 83 races
Box of Rain46
J105 · Rating 1151
58–17
77% wins · 75 races
Godot44
J/105 · Rating 804
29–45
39% wins · 74 races
Mojo119
J/105 · Rating 1248
24–48
33% wins · 72 races
Race History
127 racesRolex Big Boat Series · R7
Sep 15, 2022/12 of 29
-17
1287
Rolex Big Boat Series · R6
Sep 15, 2022/16 of 29
-32
1304
Rolex Big Boat Series · R5
Sep 15, 2022/8 of 29
-9
1336
Rolex Big Boat Series · R4
Sep 15, 2022/12 of 29
-27
1345
Rolex Big Boat Series · R3
Sep 15, 2022/6 of 29
0
1372
Rolex Big Boat Series · R2
Sep 15, 2022/7 of 29
0
1372
Rolex Big Boat Series · R1
Sep 15, 2022/2 of 29
+25
1373
Elite Keelboat Regatta · R5
May 18, 2022/4 of 23
+14
1348
Elite Keelboat Regatta · R4
May 15, 2022/2 of 23
+27
1334
Elite Keelboat Regatta · R3
May 14, 2022/6 of 23
+1
1307
Elite Keelboat Regatta · R2
May 14, 2022/3 of 23
+30
1306
Elite Keelboat Regatta · R1
May 14, 2022/5 of 23
+22
1276
Spring Fest · R6
Apr 10, 2022/1 of 24
+15
1254
Spring Fest · R5
Apr 10, 2022/RET
-21
1239
Spring Fest · R4
Apr 10, 2022/5 of 24
+3
1260
Spring Fest · R3
Apr 9, 2022/4 of 24
+8
1258
Spring Fest · R2
Apr 9, 2022/6 of 24
+2
1250
Spring Fest · R1
Apr 9, 2022/11 of 24
-14
1248
Corinthian
Feb 26, 2022/DNF
0
1262
Three Bridge Fiasco
Jan 29, 2022/30 of 235
-20
1262
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Sep 15, 2022 | Rolex Big Boat Series · R7 | 12 / 29 | 1287 | -17 |
| Sep 15, 2022 | Rolex Big Boat Series · R6 | 16 / 29 | 1304 | -32 |
| Sep 15, 2022 | Rolex Big Boat Series · R5 | 8 / 29 | 1336 | -9 |
| Sep 15, 2022 | Rolex Big Boat Series · R4 | 12 / 29 | 1345 | -27 |
| Sep 15, 2022 | Rolex Big Boat Series · R3 | 6 / 29 | 1372 | 0 |
| Sep 15, 2022 | Rolex Big Boat Series · R2 | 7 / 29 | 1372 | 0 |
| Sep 15, 2022 | Rolex Big Boat Series · R1 | 2 / 29 | 1373 | +25 |
| May 18, 2022 | Elite Keelboat Regatta · R5 | 4 / 23 | 1348 | +14 |
| May 15, 2022 | Elite Keelboat Regatta · R4 | 2 / 23 | 1334 | +27 |
| May 14, 2022 | Elite Keelboat Regatta · R3 | 6 / 23 | 1307 | +1 |
| May 14, 2022 | Elite Keelboat Regatta · R2 | 3 / 23 | 1306 | +30 |
| May 14, 2022 | Elite Keelboat Regatta · R1 | 5 / 23 | 1276 | +22 |
| Apr 10, 2022 | Spring Fest · R6 | 1 / 24 | 1254 | +15 |
| Apr 10, 2022 | Spring Fest · R5 | RET / 24 | 1239 | -21 |
| Apr 10, 2022 | Spring Fest · R4 | 5 / 24 | 1260 | +3 |
| Apr 9, 2022 | Spring Fest · R3 | 4 / 24 | 1258 | +8 |
| Apr 9, 2022 | Spring Fest · R2 | 6 / 24 | 1250 | +2 |
| Apr 9, 2022 | Spring Fest · R1 | 11 / 24 | 1248 | -14 |
| Feb 26, 2022 | Corinthian | DNF / 86 | 1262 | 0 |
| Jan 29, 2022 | Three Bridge Fiasco | 30 / 235 | 1262 | -20 |
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 (±254) 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.