SailELO

Donkey Jack

#27

J/105 · 26 · StFYC

1255
-15±38
Overall Rank
#27
of 414
Percentile
Top 7%
of 414 boats
Rating
1255
Confidence
±38
High
Races
189
Recent Form
+1
avg last 5 races
View all J/105Compare
Last raced: May 17, 2026

Rating Over Time

1330+299

Direct Competitors

Donkey Jack hasn't raced enough times against the same boats yet to surface direct rivals. Check back after a few more series.

Race History

188 races
Elite Fleet Regatta · R5
May 17, 2026/11 of 23
-15
1330
Elite Fleet Regatta · R4
May 17, 2026/6 of 23
+5
1345
Elite Fleet Regatta · R3
May 16, 2026/6 of 23
+4
1339
Elite Fleet Regatta · R2
May 16, 2026/11 of 23
-19
1336
Elite Fleet Regatta · R1
May 16, 2026/1 of 23
+29
1355
Friday Night Races April 3 to September
Apr 24, 2026/2 of 11
-2
1326
SYC J/105 J/88 Spring Invitational Regatta · R6
Mar 22, 2026/3 of 20
+19
1327
SYC J/105 J/88 Spring Invitational Regatta · R5
Mar 22, 2026/15 of 20
-37
1308
SYC J/105 J/88 Spring Invitational Regatta · R4
Mar 22, 2026/12 of 20
-32
1345
SYC J/105 J/88 Spring Invitational Regatta · R3
Mar 21, 2026/2 of 20
+14
1377
SYC J/105 J/88 Spring Invitational Regatta · R2
Mar 21, 2026/3 of 20
+14
1364
SYC J/105 J/88 Spring Invitational Regatta · R1
Mar 21, 2026/1 of 20
+29
1349
10th Anniversary of the Auxiliary Cup · R2
Oct 4, 2025/1 of 5
+5
1321
10th Anniversary of the Auxiliary Cup · R1
Oct 4, 2025/2 of 5
-3
1316
Rolex Big Boat Series · R7
Sep 14, 2025/2 of 27
+6
1319
Rolex Big Boat Series · R6
Sep 13, 2025/9 of 27
-8
1313
Rolex Big Boat Series · R5
Sep 13, 2025/16 of 27
-22
1321
Rolex Big Boat Series · R4
Sep 12, 2025/7 of 27
-10
1343
Rolex Big Boat Series · R3
Sep 12, 2025/2 of 27
+1
1353
Rolex Big Boat Series · R2
Sep 11, 2025/3 of 27
-1
1352

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.