Harrison Vanderground

Rating History

Crew Rating

Career: 53.50 percentile of ICSA crews (limited evidence)
2.002.252.502.75N. Long (12 races): +0.23N. LongFall 2024: rating 2.33Fall 2024University of Miami
▲ boats did better with this crew than with the skipper's usual crews▼ worseArrow length = size of the push, in rating points
Season Team Rating Range League
percentile
Team
percentile
On team Races Team page
Fall 2024 University of Miami 2.33 Rating 2.33; 90% range -1.0 to 5.7; team skipper average 2.27 71.01 59.09 5 of 11 12 Team page

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded1.49182 of 25129Fall 2024

Team Race Rating

Rating Rank vs fleet rating Record
1.37 (fleet 1.80) 293 of 331 +0.07 ± 0.17
about what the fleet rating predicts
as skipper 22–19 (54%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2026313–13—
Spring 202519–6—
1.11.21.31.4Spring 2026SAISA Open Top 6 Team Race (2026-02-15): rating 1.22, fleet rating alone 1.20, offset +0.02; record 2-6 in this boatMendelblatt Open Team Race (2026-02-28): rating 1.24, fleet rating alone 1.20, offset +0.04; record 0-1 in this boatMendelblatt Open Team Race (2026-02-28): rating 1.24, fleet rating alone 1.20, offset +0.04; record 3-2 in this boatBud Morrow Open Team Race (2026-03-14): rating 1.25, fleet rating alone 1.19, offset +0.06; record 8-4 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 4 graded regattas (41 matches) the record is 22–19 against 15.2 wins the pre-event forecasts expected (+6.8). 3 regattas clearly above the rating (P ≤ 20%), 0 clearly below (P ≥ 80%); 6 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-03-14Bud Morrow Open Team Raceskipper1.582.908–45.3+1.312.66%
2026-02-28Mendelblatt Open Team Raceskipper1.502.753–31.8+1.251.120%
2026-02-15SAISA Open Top 6 Team Raceskipper1.382.632–60.8+1.251.119%
2025-02-15Lake Virginia Team Raceskipper0.901.489–67.3+0.580.724%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
Lake Virginia Invitational Skipper A 6 5.0 1.92
Spring 2026 Team page Season
SAISA Open Top 6 Team Race Skipper TR 8 25% —
SAISA Open Top 6 Invite Skipper B 9 13.8 —
Mendelblatt Open Team Race Skipper TR 9 33% —
Bud Morrow Open Team Race Skipper TR 12 67% —
Fall 2025 Team page Season
SAISA South Fall Tournament Skipper B 6 6.8 1.96
SAISA Miami Trophy Skipper B 6 1.0 —
Greg Popp Trophy @ ERAU Skipper A 6 7.3 0.86
Spring 2025 Team page Season
Lake Virginia Team Race Skipper TR 15 60% —
Halifax River Invitational Skipper B 6 5.0 1.16
2025 Florida Trophy Skipper A 5 6.8 1.70
Fall 2024 Team page Season
SAISA Open Singlehanded Champs Singlehanded Skipper A 10 13.5 0.37
Miami Trophy (SAISA) Skipper B 3 5.7 0.33
Lake Virginia Invitational Crew B 12 4.7 +0.23

Linked Profiles

League Name School Year
ISSA Harrison Vanderground Grand Rapids Christian High SchoolGrand Rapids Christian High School '24
ISSA Harrison Vanderground Forest Hills Eastern (MI)Forest Hills Eastern (MI) '24

From the notes

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

All notes →