Jam Session
#907J/105 · usa434 · StFYC
785
-17±255
Overall Rank
#907
of 1355
Percentile
Top 67%
of 1355 boats
Rating
785
Confidence
±255
Low
Races
147
Recent Form
-18
avg last 5 races
Last raced: Sep 15, 2022
Rating Over Time
1294+305Direct Competitors
Boats Jam Session has raced against most often, with head-to-head finish record.
Akula16
J/105 · Rating 1213
69–36
66% wins · 105 races
BlackhawkUSA 40
J/105 · Rating 1221
33–72
31% wins · 105 races
Arbitrage116
J/105 · Rating 1194
33–60
35% wins · 93 races
Jabberwocky149
J/105 · Rating 1212
62–27–1
70% wins · 90 races
Donkey Jack26
J/105 · Rating 1252
55–28
66% wins · 83 races
Box of Rain46
J105 · Rating 1153
58–17
77% wins · 75 races
Godot44
J/105 · Rating 810
29–45
39% wins · 74 races
Mojo119
J/105 · Rating 1312
24–48
33% wins · 72 races
Race History
127 racesRolex Big Boat Series · R7
Sep 15, 2022/12 of 29
-17
1294
Rolex Big Boat Series · R6
Sep 15, 2022/16 of 29
-32
1311
Rolex Big Boat Series · R5
Sep 15, 2022/8 of 29
-10
1343
Rolex Big Boat Series · R4
Sep 15, 2022/12 of 29
-28
1353
Rolex Big Boat Series · R3
Sep 15, 2022/6 of 29
-1
1380
Rolex Big Boat Series · R2
Sep 15, 2022/7 of 29
-1
1381
Rolex Big Boat Series · R1
Sep 15, 2022/2 of 29
+24
1382
Elite Keelboat Regatta · R5
May 18, 2022/4 of 23
+14
1358
Elite Keelboat Regatta · R4
May 15, 2022/2 of 23
+27
1344
Elite Keelboat Regatta · R3
May 14, 2022/6 of 23
0
1317
Elite Keelboat Regatta · R2
May 14, 2022/3 of 23
+32
1317
Elite Keelboat Regatta · R1
May 14, 2022/5 of 23
+22
1285
Spring Fest · R6
Apr 10, 2022/1 of 24
+16
1263
Spring Fest · R5
Apr 10, 2022/RET
-22
1248
Spring Fest · R4
Apr 10, 2022/5 of 24
+2
1269
Spring Fest · R3
Apr 9, 2022/4 of 24
+8
1267
Spring Fest · R2
Apr 9, 2022/6 of 24
+1
1260
Spring Fest · R1
Apr 9, 2022/11 of 24
-18
1258
Corinthian
Feb 26, 2022/DNF
0
1276
Three Bridge Fiasco
Jan 29, 2022/30 of 235
-18
1266
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Sep 15, 2022 | Rolex Big Boat Series · R7 | 12 / 29 | 1294 | -17 |
| Sep 15, 2022 | Rolex Big Boat Series · R6 | 16 / 29 | 1311 | -32 |
| Sep 15, 2022 | Rolex Big Boat Series · R5 | 8 / 29 | 1343 | -10 |
| Sep 15, 2022 | Rolex Big Boat Series · R4 | 12 / 29 | 1353 | -28 |
| Sep 15, 2022 | Rolex Big Boat Series · R3 | 6 / 29 | 1380 | -1 |
| Sep 15, 2022 | Rolex Big Boat Series · R2 | 7 / 29 | 1381 | -1 |
| Sep 15, 2022 | Rolex Big Boat Series · R1 | 2 / 29 | 1382 | +24 |
| May 18, 2022 | Elite Keelboat Regatta · R5 | 4 / 23 | 1358 | +14 |
| May 15, 2022 | Elite Keelboat Regatta · R4 | 2 / 23 | 1344 | +27 |
| May 14, 2022 | Elite Keelboat Regatta · R3 | 6 / 23 | 1317 | 0 |
| May 14, 2022 | Elite Keelboat Regatta · R2 | 3 / 23 | 1317 | +32 |
| May 14, 2022 | Elite Keelboat Regatta · R1 | 5 / 23 | 1285 | +22 |
| Apr 10, 2022 | Spring Fest · R6 | 1 / 24 | 1263 | +16 |
| Apr 10, 2022 | Spring Fest · R5 | RET / 24 | 1248 | -22 |
| Apr 10, 2022 | Spring Fest · R4 | 5 / 24 | 1269 | +2 |
| Apr 9, 2022 | Spring Fest · R3 | 4 / 24 | 1267 | +8 |
| Apr 9, 2022 | Spring Fest · R2 | 6 / 24 | 1260 | +1 |
| Apr 9, 2022 | Spring Fest · R1 | 11 / 24 | 1258 | -18 |
| Feb 26, 2022 | Corinthian | DNF / 86 | 1276 | 0 |
| Jan 29, 2022 | Three Bridge Fiasco | 30 / 235 | 1266 | -18 |
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 (±255) 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.