Brad Seferian

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
2.48 (fleet 3.37) unranked (fewer than 30 matches as skipper, or not active) +0.03 ± 0.18
about what the fleet rating predicts
as skipper 79–91 (46%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2019638–37—
Spring 2018519–33—
Spring 2017322–21—
1.7522.252.5Spring 2017Spring 2018Spring 2019NEISA/MAISA Team Race (2017-03-25): rating 1.89, fleet rating alone 1.83, offset +0.06; record 7-11 in this boatCamel Team Race (2017-04-02): rating 1.92, fleet rating alone 1.85, offset +0.07; record 7-3 in this boatGW Team Race (2018-03-03): rating 1.94, fleet rating alone 1.83, offset +0.12; record 1-1 in this boatWood Trophy (2018-03-10): rating 1.96, fleet rating alone 1.83, offset +0.13; record 5-9 in this boatGraham Hall Team Race (2018-03-17): rating 1.98, fleet rating alone 1.82, offset +0.15; record 1-6 in this boatAdmiral Moore Team Race (2018-03-24): rating 1.93, fleet rating alone 1.81, offset +0.12; record 8-9 in this boatTeam Race Challenge (2018-03-31): rating 1.85, fleet rating alone 1.76, offset +0.08; record 4-8 in this boatGeorgetown Team Race (2019-03-02): rating 2.32, fleet rating alone 2.27, offset +0.04; record 6-6 in this boatSt. Mary's Team Race InterConference (2019-03-09): rating 2.32, fleet rating alone 2.27, offset +0.05; record 4-5 in this boatGraham Hall (2019-03-16): rating 2.32, fleet rating alone 2.28, offset +0.04; record 3-1 in this boatGraham Hall (2019-03-16): rating 2.32, fleet rating alone 2.28, offset +0.04; record 5-6 in this boatAdmiral Moore Team Race (2019-03-23): rating 2.36, fleet rating alone 2.30, offset +0.06; record 8-2 in this boatProsser Trophy (2019-04-06): rating 2.36, fleet rating alone 2.30, offset +0.07; record 6-8 in this boatLaserPerformance Team Race National Championship (2019-05-25): rating 2.45, fleet rating alone 2.38, offset +0.08; record 1-0 in this boatLaserPerformance Team Race National Championship (2019-05-25): rating 2.45, fleet rating alone 2.38, offset +0.08; record 1-3 in this boatLaserPerformance Team Race National Championship (2019-05-25): rating 2.45, fleet rating alone 2.38, offset +0.08; record 4-6 in this boatTeam race rating

Rating before each regatta driven (solid; dots green when the boat won 60% or more of its matches there, red under 40%) and what the fleet rating alone would give (dashed). The gap is the team race offset as it stood at the time. Hover a dot for the regatta; click to open it.

Team race surprisal: regatta by regatta

Over 13 graded regattas (168 matches) the record is 78–90 against 67.7 wins the pre-event forecasts expected (+10.3). 2 regattas clearly above the rating (P ≤ 20%), 2 clearly below (P ≥ 80%); 19 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2019-05-25LaserPerformance Team Race National Championshipskipper3.333.006–96.7−0.330.279%
2019-04-06Prosser Trophyskipper3.213.746–84.4+0.540.625%
2019-03-23Admiral Moore Team Raceskipper3.223.978–27.1+0.750.539%
2019-03-16Graham Hallskipper3.153.698–76.7+0.550.530%
2019-03-09St. Mary's Team Race InterConferenceskipper3.113.164–53.9+0.040.062%
2019-03-02Georgetown Team Raceskipper3.083.156–65.9+0.060.060%
2018-03-31Team Race Challengeskipper2.331.094–86.6−1.242.398%
2018-03-24Admiral Moore Team Raceskipper2.372.498–97.7+0.120.054%
2018-03-17Graham Hall Team Raceskipper2.500.631–62.4−1.861.799%
2018-03-10Wood Trophyskipper2.522.895–93.9+0.380.335%
2017-04-02Camel Team Raceskipper2.574.967–31.8+2.399.5<1%
2017-03-25NEISA/MAISA Team Raceskipper2.412.577–116.4+0.160.147%
2017-03-18Washington College Team Raceskipper2.023.288–74.2+1.263.62%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2019 Team page Season
St. Mary's Team Race InterConference Skipper TR 9 44% —
Prosser Trophy Skipper TR 14 43% —
Navy Spring Skipper B 14 7.6 3.43
LaserPerformance Team Race National Championship Skipper TR 15 40% —
Graham Hall Skipper TR 15 53% —
Gill Coed Eastern Semifinals Skipper B 14 8.8 3.46
Georgetown Team Race Skipper TR 15 60% —
America Trophy Skipper B 4 5.0 4.46
Admiral Moore Team Race Skipper TR 10 80% —
Admiral's Cup Skipper B 8 11.5 3.12
Fall 2018 Team page Season
Truxtun Umsted Coed Showcase Skipper B 4 4.2 4.43
Oyster Bowl Fleet 1 Skipper A 8 10.0 0.99
Jesuit Invitational Skipper A 1 9.0 —
Danmark Trophy Skipper B 4 12.5 2.79
The Coed Showcase A Regatta Skipper A 4 14.5 2.23
Spring 2018 Team page Season
Wood Trophy Skipper TR 14 36% —
Thompson Trophy Skipper C 12 9.2 3.41
Team Race Challenge Skipper TR 12 33% —
GW Team Race Skipper TR 5 40% —
Graham Hall Team Race Skipper TR 15 27% —
Gill Coed Western Semifinal Skipper B 3 8.7 3.46
Admirals Cup Skipper B 10 8.9 3.39
Admiral Moore Team Race Skipper TR 17 47% —
Fall 2017 Team page Season
Truxtun Umsted Skipper D 13 12.4 2.54
Nevins Trophy Skipper C 14 14.0 1.89
Moody Trophy Skipper B 10 10.0 2.95
Kings Point Dinghy Open Skipper A 4 10.8 1.93
Jesuit Interconference Skipper A 9 3.8 3.48
35th Professor Stedman Hood Trophy Skipper A 6 13.5 2.36
Spring 2017 Team page Season
Washington College Team Race Skipper TR 15 53% —
NEISA/MAISA Team Race Skipper TR 18 39% —
Camel Team Race Skipper TR 10 70% —
Admirals Cup Skipper C 3 16.0 0.72
Fall 2016 Team page Season
Jesuit Interconference Skipper A 12 3.7 3.51
David Lee Arnoff Skipper B 13 6.4 2.31
34th Professor Stedman Hood Trophy Skipper B 13 11.6 2.59
Spring 2016 Team page Season
Greater New York Dinghy Regatta Skipper B 12 3.0 2.67
Fall 2015 Team page Season
Kings Point Dinghy Open Skipper B 10 10.1 1.64
Jack Boehringer '52 Memorial Regatta Skipper B 6 7.3 1.97

Linked Profiles

League Name School Year
ISSA Brad Seferian Wayland High SchoolWayland High School '15

From the notes

Short write-ups of what the ratings and results show, with the numbers and how they were computed.

All notes →