Boomslang
#153Viper 640 · 247 · SBYC
1101
-39±133
Overall Rank
#153
of 1169
Percentile
Top 13%
of 1169 boats
Rating
1101
Confidence
±133
Medium
Races
30
Recent Form
0
avg last 5 races
Last raced: Dec 15, 2024
Rating Over Time
1368+314Direct Competitors
Boats Boomslang has raced against most often, with head-to-head finish record.
Race History
30 racesViper 640 North American Championship · R10
Dec 15, 2024/DNF
-39
1368
Viper 640 North American Championship · R9
Dec 15, 2024/16 of 30
-69
1407
Viper 640 North American Championship · R8
Dec 15, 2024/1 of 30
+31
1476
Viper 640 North American Championship · R6
Dec 14, 2024/1 of 30
+37
1444
Viper 640 North American Championship · R5
Dec 14, 2024/1 of 30
+40
1408
Viper 640 North American Championship · R4
Dec 14, 2024/10 of 30
-39
1368
Viper 640 North American Championship · R7
Dec 13, 2024/3 of 30
+22
1407
Viper 640 North American Championship · R3
Dec 13, 2024/5 of 30
+1
1386
Viper 640 North American Championship · R2
Dec 13, 2024/1 of 30
+47
1384
Viper 640 North American Championship · R1
Dec 13, 2024/1 of 30
+42
1337
Viper 640 Pacific Coast Championship · R6
Aug 10, 2019/1 of 18
+33
1295
Viper 640 Pacific Coast Championship · R5
Aug 10, 2019/9 of 18
-50
1262
Viper 640 Pacific Coast Championship · R4
Aug 10, 2019/4 of 18
-1
1312
Viper 640 Pacific Coast Championship · R3
Aug 10, 2019/4 of 18
+11
1313
Viper 640 Pacific Coast Championship · R2
Aug 10, 2019/2 of 18
+32
1302
Viper 640 Pacific Coast Championship · R1
Aug 10, 2019/3 of 18
+19
1270
Spring One Design Regatta 2019 · R7
May 11, 2019/2 of 11
+12
1251
Spring One Design Regatta 2019 · R6
May 11, 2019/2 of 11
+14
1239
Spring One Design Regatta 2019 · R5
May 11, 2019/5 of 11
-34
1225
Spring One Design Regatta 2019 · R4
May 11, 2019/3 of 11
-5
1259
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 Viper 640” link above.
The confidence band (±133) 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.