| # | School | Team | Rec. | |
|---|---|---|---|---|
| 1 | Stanford University | Cardinal | 10–0 | |
| 2 | University of Hawaii | Rainbows | 7–3 | |
| 3 | University of California at San Diego | Tritons | 5–5 | |
| 4 | University of California at Irvine | Anteaters | 5–5 | |
| 5 | University of California at Santa Barbara | Gauchos | 6–4 | |
| 6 | California Maritime Academy | Keelhaulers | 4–6 | |
| 7 | California State University Long Beach | 49ers | 3–7 | |
| 8 | University of Southern California | Trojans | 0–10 |
Each side is the sum of its three boats (the skipper's fleet rating times 0.72 plus a team race offset learned from their past matches, plus the crew's offset and a small experience term) plus the school's team race strength and a home-water edge for the host. The win probability is a logistic function of the difference. The forecast was made before the event: the model was refitted on every match sailed before the first day, with fleet ratings as of the week before.
Fitted on the 1,271 team race matches sailed before 2013-04-05, using the line-ups that actually raced. It called 29 of 40 matches (72%) with a log-loss of 0.546 (a coin flip scores 0.693), so the event went about as expected for the forecast. Orderliness −0.75 ± 0.32: an upset-heavy event, more orderly than 5% of college team race events (temperature of the forecast log-odds that best fits the results, relative to the league average; nothing about the field, venue or wind predicts it, see the Weather tab). vs forecast is a team's wins minus the wins the model expected from the matches it sailed: positive means it beat its rating.
For each side, the performance strength is the value that would have made its record least surprising: the strength at which the model's expected wins over exactly these opponents equal the actual wins, with every opponent fixed at its pre-event strength. For a skipper, the same shift is applied only to their boat in the matches they sailed, with team-mates and opponents fixed; team-mates who sailed every match together therefore get the same number. Surprise is in bits: -log2 of the probability of the record at the pre-event strength minus the same at the performance strength. P(this good or better) treats matches as independent coin flips at the model's pre-event probabilities, so it ignores form within the day; read it as a rough guide.
Pre-event strength against the strength that would have made each record least surprising, everything else fixed. Δ is in the model's logit units, the same scale as the boat values above (a side is three boats plus the school term); green is a clear over-performance, red a clear under-performance. Skippers need three or more matches.
| Place | School | Strength | Perf. | Record | Exp. wins | Δ | Surprise (bits) | P(this good or better) |
|---|---|---|---|---|---|---|---|---|
| 1 | Stanford University | 12.46 | 15.46 | 10–0 | 10.0 | ≥+3.00 | 0.0 | 97% |
| 4 | University of California at Irvine | 5.28 | 7.00 | 5–5 | 2.4 | +1.72 | 3.4 | 3% |
| 6 | California Maritime Academy | 5.11 | 6.17 | 4–6 | 2.4 | +1.05 | 1.2 | 17% |
| 2 | University of Hawaii | 7.19 | 8.23 | 7–3 | 5.9 | +1.04 | 0.7 | 32% |
| 3 | University of California at San Diego | 6.02 | 6.85 | 5–5 | 3.8 | +0.82 | 0.7 | 27% |
| 5 | University of California at Santa Barbara | 7.21 | 6.87 | 6–4 | 6.5 | −0.35 | 0.1 | 81% |
| 7 | California State University Long Beach | 7.79 | 4.92 | 3–7 | 7.5 | −2.87 | 9.8 | >99% |
| 8 | University of Southern California | 4.57 | 1.57 | 0–10 | 1.6 | ≤−3.00 | 2.5 | >99% |
Probability the model gave the side that went on to win. Red bars are upsets (the winner was given under 50%).
| Team | Rec. | Cardinal | Rainbows | Tritons | Anteaters | Gauchos | Keelhaulers | 49ers | Trojans | |
|---|---|---|---|---|---|---|---|---|---|---|
| Stanford University Cardinal | 10–0 | ✕ | W | W | W | W | W | W | W | |
| University of Hawaii Rainbows | 7–3 | L | ✕ | W | W | L | W | W | W | |
| University of California at San Diego Tritons | 5–5 | L | L | ✕ | W | W | W | W | W | |
| University of California at Irvine Anteaters | 5–5 | L | L | L | ✕ | W | W | W | W | |
| University of California at Santa Barbara Gauchos | 6–4 | L | W | L | L | ✕ | W | W | W | |
| California Maritime Academy Keelhaulers | 4–6 | L | L | L | L | L | ✕ | W | W | |
| California State University Long Beach 49ers | 3–7 | L | L | L | L | L | L | ✕ | W | |
| University of Southern California Trojans | 0–10 | L | L | L | L | L | L | L | ✕ |
| # | Winner | Loser | Pos. | ||||
|---|---|---|---|---|---|---|---|
| 1 | Keelhaulers | 1-2-5 | def. | Trojans | 3-4-6 | ||
| 2 | Cardinal | 1-2-5 | def. | Rainbows | 3-4-6 | ||
| 3 | Anteaters | 1-2-5 | def. | Gauchos | 3-4-6 | ||
| 4 | Tritons | 1-2-5 | def. | 49ers | 3-4-6 | ||
| 5 | Rainbows | 1-2-5 | def. | Trojans | 3-4-6 | ||
| 6 | Keelhaulers | 1-3-5 | def. | Gauchos | 2-4-6 | ||
| 7 | Cardinal | 1-2-3 | def. | Tritons | 4-5-6 | ||
| 8 | Anteaters | 2-3-4 | def. | 49ers | 1-5-6 | ||
| 9 | Gauchos | 1-3-4 | def. | Rainbows | 2-5-6 | ||
| 10 | Tritons | 1-2-3 | def. | Trojans | 4-5-6 | ||
| 11 | Anteaters | 1-3-4 | def. | Keelhaulers | 2-5-6 | ||
| 12 | Cardinal | 1-2-4 | def. | 49ers | 3-5-6 | ||
| 13 | Tritons | 1-3-5 | def. | Gauchos | 2-4-6 | ||
| 14 | Rainbows | 1-2-4 | def. | Anteaters | 3-5-6 | ||
| 15 | Cardinal | 1-2-4 | def. | Trojans | 3-5-6 | ||
| 16 | 49ers | 1-2-6 | def. | Keelhaulers | 3-4-5 | ||
| 17 | Anteaters | 1-4-5 | def. | Tritons | 2-3-6 | ||
| 18 | Cardinal | 1-2-3 | def. | Gauchos | 4-5-6 | ||
| 19 | Rainbows | 1-2-4 | def. | Keelhaulers | 3-5-6 | ||
| 20 | 49ers | 1-2-4 | def. | Trojans | 3-5-6 | ||
| 21 | Cardinal | 1-2-3 | def. | Anteaters | 4-5-6 | ||
| 22 | Tritons | 1-2-5 | def. | Keelhaulers | 3-4-6 | ||
| 23 | Gauchos | 1-3-4 | def. | Trojans | 2-5-6 | ||
| 24 | Rainbows | 1-2-5 | def. | 49ers | 3-4-6 | ||
| 25 | Cardinal | 1-2-3 | def. | Keelhaulers | 4-5-6 | ||
| 26 | Anteaters | 2-3-5 | def. | Trojans | 1-4-6 | ||
| 27 | Rainbows | 1-3-4 | def. | Tritons | 2-5-6 | ||
| 28 | Gauchos | 1-3-6 | def. | 49ers | 2-4-5 | ||
| 29 | Keelhaulers | 1-2-5 | def. | Trojans | 3-4-6 | ||
| 30 | Keelhaulers | 1-3-6 | def. | 49ers | 2-4-5 | ||
| 31 | 49ers | 1-2-6 | def. | Trojans | 3-4-5 | ||
| 32 | Gauchos | 1-2-6 | def. | Keelhaulers | 3-4-5 | ||
| 33 | Gauchos | 1-2-3 | def. | Trojans | 4-5-6 | ||
| 34 | Gauchos | 1-2-5 DNF,DNF,DNF | def. | 49ers | 3-4-6 DNF,DNF,DNF | ||
| 35 | Cardinal | 1-2-4 | def. | Rainbows | 3-5-6 | ||
| 36 | Tritons | 1-3-5 | def. | Anteaters | 2-4-6 | ||
| 37 | Rainbows | 2-3-4 | def. | Anteaters | 1-5-6 | ||
| 38 | Cardinal | 1-2-3 | def. | Tritons | 4-5-6 | ||
| 39 | Cardinal | 1-2-3 | def. | Anteaters | 4-5-6 | ||
| 40 | Rainbows | 1-2-5 | def. | Tritons | 3-4-6 | ||
Orderliness is how tightly a fleet race’s finishing order follows the pre-regatta ratings, relative to a typical event (0): positive is the favourites’ day, negative the underdogs’. A value of ±0.02 means a rating gap counts about 2% more than on a typical day. This event is not a fleet race the rating model scores, so there is no actual value for it: this is what this venue’s fleet racing history says about the breeze on the day, read off the chart at the star. How this is estimated · compare venues.
Short write-ups of what the ratings and results show, with the numbers and how they were computed.