Seamus Hendrickson

Rating History

Crew Rating

Career: 51.20 percentile of ICSA crews (limited evidence)

No season rating yet: needs 8+ crewed races in a season.

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded2.22unranked (fewer than 10 races or not active)48Spring 2021
Keelboat1.1416 of 10154Fall 2025

Team Race Rating

Rating Rank vs fleet rating Record
1.71 (fleet 2.77) unranked (fewer than 30 matches as skipper, or not active) −0.00 ± 0.18
about what the fleet rating predicts
as skipper 23–17 (57%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202128–7—
Spring 201927–4—
Spring 201815–3—
Spring 201613–3—
1.51.61.71.8Spring 2018Spring 2019Spring 2021LMSS Team Race Varsity (2018-05-19): rating 1.57, fleet rating alone 1.60, offset -0.02; record 1-1 in this boatLMSS Team Race Varsity (2018-05-19): rating 1.57, fleet rating alone 1.60, offset -0.02; record 4-2 in this boatMISSA Baker Qualifier (2019-05-04): rating 1.72, fleet rating alone 1.74, offset -0.03; record 1-0 in this boatMISSA Baker Qualifier (2019-05-04): rating 1.72, fleet rating alone 1.74, offset -0.03; record 1-1 in this boatMISSA Baker Qualifier (2019-05-04): rating 1.72, fleet rating alone 1.74, offset -0.03; record 5-1 in this boatMISSA Gold sail-off (2019-05-05): rating 1.74, fleet rating alone 1.74, offset -0.00; record 0-1 in this boatMISSA Gold sail-off (2019-05-05): rating 1.74, fleet rating alone 1.74, offset -0.00; record 0-1 in this boatMISSA West Baker Qualifier (2021-04-10): rating 1.70, fleet rating alone 1.71, offset -0.01; record 3-7 in this boatMinnesota Conference #1 (2021-05-08): rating 1.59, fleet rating alone 1.62, offset -0.03; record 5-0 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 5 graded regattas (38 matches) the record is 23–15 against 23.0 wins the pre-event forecasts expected (−0.0). 1 regatta clearly above the rating (P ≤ 20%), 2 clearly below (P ≥ 80%); 6 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2021-05-08Minnesota Conference #1skipper1.764.765–03.1≥+3.003.37%
2021-04-10MISSA West Baker Qualifierskipper1.880.813–74.8−1.071.194%
2019-05-04MISSA Baker Qualifierskipper1.882.887–25.7+1.000.728%
2018-05-19LMSS Team Race Varsityskipper1.581.465–35.1−0.110.071%
2016-04-16MN Conference #2 Team Raceskipper1.08-0.123–34.2−1.200.894%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2021 Team page Season
MN Conference #3 at Minneapolis Sailing Center Skipper A 7 3.1 2.43
MISSA West League Mallory Pre-Qualifier Skipper A 12 3.7 1.97
MISSA West Baker Qualifier Skipper TR 10 30% —
MISSA Singlehanded Championship (Radial) Singlehanded Skipper A 5 14.8 0.86
Minnesota Conference #1 Skipper TR 5 100% —
2021 MISSA Mallory Qualifier Skipper A 9 11.4 1.23
Fall 2019 Team page Season
MN State Singlehanded Tournament Singlehanded Skipper A 5 4.8 2.02
MN Conference 1 - Fall 2019 Skipper A 7 4.1 2.32
MISSA Great Lakes West Skipper A 13 2.2 2.64
MISSA Cressy Qualifier (Radial) Singlehanded Skipper A 14 9.3 2.04
2019 Atlantic Coast Championship Skipper A 18 12.1 0.37
Spring 2019 Team page Season
MN Boys State Championship Skipper A 10 2.6 2.81
MISSA Mallory Qualifier Skipper A 11 8.0 1.48
MISSA Baker Qualifier Skipper TR 9 78% —
ISSA Fleet Race Nationals (Mallory Trophy) Skipper A 14 13.8 -0.10
MISSA Gold sail-off Skipper TR 2 0% —
Fall 2018 Team page Season
MN State Singles Championship - Radial Rig Singlehanded Skipper A 7 5.0 1.67
MN Conference Regatta #4 Fall 2018 SCSS Skipper A 5 6.6 1.39
MN Conference #1 Skipper A 5 15.0 -0.35
MISSA Keelboat Qualifier Keelboat Skipper A 6 1.7 3.16
MISSA Great Lakes Championship Skipper A 13 7.7 1.33
Dusty Waters West Great Lake Qualifier Skipper A 8 3.2 1.79
Art Johnson Skipper A 6 2.7 3.25
Spring 2018 Team page Season
Phebe Corckran King Memorial Trophy Skipper A 12 12.1 -0.37
MN Conference #4 Skipper A 6 4.3 2.10
MISSA Mallory Qualifier Skipper A 9 8.8 0.98
LMSS Team Race Varsity Skipper TR 8 62% —
2018 Coed State Championship Skipper A 3 5.3 0.54
2018 Boys MN State Championship Skipper A 8 2.2 2.48
Fall 2017 Team page Season
MN State Singlehanded Champ Radial Singlehanded Skipper A 8 3.4 2.35
MN Fall Conference #2 Skipper A 6 6.7 0.90
MN Conference # 1 Skipper A 7 5.1 1.59
MISSA Great Oaks - Championship Fleet Skipper A 10 5.1 1.55
MISSA Great Oaks (C-420 Qualifying) Skipper A 6 4.0 1.21
MISSA Great Lakes Championship Crew A, B 7 5.9 —
MISSA Cressy Radial Qualifier Singlehanded Skipper A 9 13.1 0.29
Minnesota Conference #3 Skipper A 6 5.0 1.76
Great Oaks red Skipper A 10 7.0 1.11
Great Oaks Gold Skipper A 6 10.8 0.29
Fall Scramble Crew A, B 6 4.2 —
Spring 2017 Team page Season
MN State Tournament (Boys) Skipper A 4 2.5 1.65
MN Conference #4 Skipper A 6 6.3 0.71
MN Conference Finale Skipper A 3 2.7 2.35
MN Conference #2 Skipper A 5 4.6 1.11
MN Coed State Championship Skipper A 7 5.0 1.07
Minnesota Conference #1 Skipper A 6 2.5 1.01
Fall 2016 Team page Season
MN Conference #2 Skipper A 6 7.3 0.75
Minnesota Conference Finale Tier 3 Skipper A 6 5.3 1.25
Minnesota Conference #4 Skipper A 5 5.2 1.05
LMSS MN Conference #3 Skipper A 5 2.4 2.47
Conference #1 Skipper A 6 6.2 1.06
Art Johnson Invitational Skipper A 7 8.0 0.60
Spring 2016 Team page Season
MN State Coed Championship Skipper A 9 5.8 0.09
MN Conference #2 Team Race Skipper TR — — —
MN Conference #5 Skipper B 6 3.8 1.90
MISSA Conference Regatta #3 Skipper B 6 2.7 2.23
Minnesota Conference Regatta Finale - Tier 3 Skipper A 7 5.3 1.52
Minnesota Boy's State Championship Skipper A 6 3.7 2.07
Conference #4 Skipper B 7 2.4 2.57
2016 Ice Breaker Crew B 6 9.0 —
Fall 2015 Team page Season
MN - Conference #3 Skipper A 5 7.2 0.69
Minnesota Fall Conference #2 Skipper B 4 6.5 0.36
Minnesota Conference #4 Skipper B 4 5.8 1.69
Fall Conference Regatta #5 Skipper A 7 11.0 0.23
MN Fall 2015 - Conference 1 Skipper B 5 7.0 0.37
Art Johnson Invite Crew B 2 2.0 —

Linked Profiles

League Name School Year
ICSA Seamus Hendrickson University of WisconsinUniversity of Wisconsin '25
ICSA Seamus Hendrickson University of KansasUniversity of Kansas '25
ISSA Seamus Hendrickson Providence AcademyProvidence Academy '20
ISSA Seamus Hendrickson Wayzata High SchoolWayzata High School '21

From the notes

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

All notes →

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