Boomslang
#40Viper 640 · 247 · SBYC
1101
-39±133
Overall Rank
#40
of 228
Percentile
Top 18%
of 228 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.
Boiling Point212
Viper · Rating 904
16–0
100% wins · 16 races
Nice Asp221
Viper 640 · Rating 485
5–9
36% wins · 14 races
It's a Rental38
viper 640 · Rating 161
7–0
100% wins · 7 races
Breakaway192
viper 640 · Rating 161
7–0
100% wins · 7 races
Sog187
viper 640 · Rating 161
7–0
100% wins · 7 races
It's All Good204
viper 640 · Rating 636
3–4
43% wins · 7 races
Fng221
viper 640 · Rating 195
6–0
100% wins · 6 races
#hmb301
Viper 640 · Rating 589
5–1
83% wins · 6 races
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
1406
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
-40
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
1385
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
1294
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.