Geoffrey Slaff
#1099Harbor 20 · 338 · SBYC
804
-22±260
Overall Rank
#1099
of 1759
Percentile
Top 62%
of 1759 boats
Rating
804
Confidence
±260
Low
Races
17
Recent Form
-13
avg last 5 races
Last raced: Oct 1, 2022
Rating Over Time
1324+37Direct Competitors
Boats Geoffrey Slaff has raced against most often, with head-to-head finish record.
S.O.D383
Harbor 20 · Rating 1089
8–9
47% wins · 17 races
AverageUSA549
Melges 24 · Rating 1096
2–9–6
18% wins · 17 races
Escape1036
J/70 · Rating 716
16–1
94% wins · 17 races
Mojito850
J/70 · Rating 471
17–0
100% wins · 17 races
Cake351
J/70 · Rating 1100
8–2–7
80% wins · 17 races
Shiokaze301
Melges 24 · Rating 745
14–1–2
93% wins · 17 races
Tinka757
Melges 24 · Rating 898
15–1
94% wins · 16 races
3 Big Dogs58
J/70 · Rating 1057
1–9–5
10% wins · 15 races
Race History
17 racesSBYC Fall Regatta · R3
Oct 1, 2022/3 of 5
-22
1324
SBYC Fall Regatta · R2
Oct 1, 2022/2 of 5
-3
1346
SBYC Fall Regatta · R1
Oct 1, 2022/3 of 5
-24
1349
Fiesta Cup · R7
Jul 22, 2022/2 of 8
+5
1373
Fiesta Cup · R6
Jul 22, 2022/3 of 8
-22
1368
Fiesta Cup · R5
Jul 22, 2022/1 of 8
+23
1390
Fiesta Cup · R4
Jul 22, 2022/2 of 8
+9
1367
Fiesta Cup · R3
Jul 22, 2022/4 of 8
-42
1358
Fiesta Cup · R2
Jul 22, 2022/1 of 8
+36
1401
Fiesta Cup · R1
Jul 22, 2022/2 of 8
+14
1364
Fiesta Cup · R7
Jul 22, 2022/2 of 8
+10
1350
Fiesta Cup · R6
Jul 22, 2022/3 of 8
-41
1341
Fiesta Cup · R5
Jul 22, 2022/1 of 8
+44
1382
Fiesta Cup · R4
Jul 22, 2022/2 of 8
+27
1338
Fiesta Cup · R3
Jul 22, 2022/4 of 8
-117
1311
Fiesta Cup · R2
Jul 22, 2022/1 of 8
+140
1428
Fiesta Cup · R1
Jul 22, 2022/2 of 8
+496
1287
| Date | Regatta | Place | Rating After | Change |
|---|---|---|---|---|
| Oct 1, 2022 | SBYC Fall Regatta · R3 | 3 / 5 | 1324 | -22 |
| Oct 1, 2022 | SBYC Fall Regatta · R2 | 2 / 5 | 1346 | -3 |
| Oct 1, 2022 | SBYC Fall Regatta · R1 | 3 / 5 | 1349 | -24 |
| Jul 22, 2022 | Fiesta Cup · R7 | 2 / 8 | 1373 | +5 |
| Jul 22, 2022 | Fiesta Cup · R6 | 3 / 8 | 1368 | -22 |
| Jul 22, 2022 | Fiesta Cup · R5 | 1 / 8 | 1390 | +23 |
| Jul 22, 2022 | Fiesta Cup · R4 | 2 / 8 | 1367 | +9 |
| Jul 22, 2022 | Fiesta Cup · R3 | 4 / 8 | 1358 | -42 |
| Jul 22, 2022 | Fiesta Cup · R2 | 1 / 8 | 1401 | +36 |
| Jul 22, 2022 | Fiesta Cup · R1 | 2 / 8 | 1364 | +14 |
| Jul 22, 2022 | Fiesta Cup · R7 | 2 / 8 | 1350 | +10 |
| Jul 22, 2022 | Fiesta Cup · R6 | 3 / 8 | 1341 | -41 |
| Jul 22, 2022 | Fiesta Cup · R5 | 1 / 8 | 1382 | +44 |
| Jul 22, 2022 | Fiesta Cup · R4 | 2 / 8 | 1338 | +27 |
| Jul 22, 2022 | Fiesta Cup · R3 | 4 / 8 | 1311 | -117 |
| Jul 22, 2022 | Fiesta Cup · R2 | 1 / 8 | 1428 | +140 |
| Jul 22, 2022 | Fiesta Cup · R1 | 2 / 8 | 1287 | +496 |
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 Harbor 20” link above.
The confidence band (±260) 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.