Mallory Dietsch

Rating History

Crew Rating

Career: 72.30 percentile of ICSA crews
0.751.001.251.501.752.002.25K. Brooksbank (20 races): -0.63K. BrooksbankA. Leshaw (14 races): +0.16A. LeshawFall 2023: rating 1.57Fall 2023Massachusetts Maritime AcademyA. Leshaw (25 races): +0.36A. LeshawZ. Earnshaw (12 races): -0.25Z. EarnshawFall 2024: rating 1.83Fall 2024Massachusetts Maritime AcademyL. Kenahan (26 races): +0.39L. KenahanC. Shearley (9 races): +0.22C. ShearleyFall 2025: rating 1.17Fall 2025Massachusetts Maritime AcademyL. Kenahan (9 races): +0.26L. KenahanSpring 2026: rating 1.61Spring 2026Massachusetts Maritime Academy
▲ 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
Spring 2026 Massachusetts Maritime Academy 1.61 Rating 1.61; 90% range -1.1 to 4.3; team skipper average 0.97 59.33 68.75 3 of 8 9 Team page
Fall 2025 Massachusetts Maritime Academy 1.17 Rating 1.17; 90% range -1.5 to 3.8; team skipper average 0.90 47.92 64.29 3 of 7 35 Team page
Fall 2024 Massachusetts Maritime Academy 1.83 Rating 1.83; 90% range -0.8 to 4.5; team skipper average 1.05 60.28 68.75 3 of 8 37 Team page
Fall 2023 Massachusetts Maritime Academy 1.57 Rating 1.57; 90% range -1.1 to 4.3; team skipper average 0.99 51.56 80.77 3 of 13 34 Team page

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded0.45unranked (fewer than 10 races or not active)12Fall 2022

Team Race Rating

Rating Rank vs fleet rating Record
-0.06 (fleet -0.08) unranked (fewer than 30 matches as skipper, or not active) +0.00
about what the fleet rating predicts
as crew 23–45 (34%)
SeasonRegattas Skipper W–LCrew W–L
Spring 20261—12–6
Spring 20252—1–22
Spring 20244—10–17

Team race surprisal: regatta by regatta

Over 6 graded regattas (66 matches) the record is 22–44 against 17.1 wins the pre-event forecasts expected (+4.9). 2 regattas clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 4 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-03-21Brenton Cove Team Racecrew1.782.2812–69.9+0.500.722%
2025-03-222025 Staake Trophycrew1.25-1.750–150.3≤−3.000.4>99%
2025-03-15Mass Maritime Team Race Invitecrew1.221.391–70.9+0.170.060%
2024-04-06Alymers Team Race Invitecrew1.181.485–44.5+0.290.151%
2024-03-10Salve Regina Team Race Invitecrew1.453.241–70.2+1.791.318%
2024-03-02McMerrick Cup SATURDAYcrew1.983.243–51.3+1.261.612%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2026 Team page Season
New England Dinghy Tournament Crew A 9 3.8 +0.26
J70 Invite #2 2026 Keelboat Crew A 15 3.5 —
Brenton Cove Team Race Crew TR 18 67% —
Fall 2025 Team page Season
Shields Trophy Keelboat Crew A 2 6.0 —
Mt. Hope Bay Invite Crew A 9 10.9 +0.22
McMillan Cup Keelboat Crew A 7 7.4 —
Hewitt Trophy Crew A 12 10.6 -0.05
Callagy Ross Regatta Crew A 14 4.5 +0.43
Spring 2025 Team page Season
Oberg Trophy Crew B 6 14.0 +0.14
Mass Maritime Team Race Invite Crew TR 10 20% —
J70 Invite #1 Keelboat Crew A 14 3.2 —
2025 Staake Trophy Crew TR 15 0% —
Fall 2024 Team page Season
Sister Esther Trophy Crew B 14 9.1 +0.40
Shields Trophy Keelboat Crew A 7 8.1 —
Schell Trophy NEISA Open Championship Crew B 5 16.0 +0.05
Salt Pond Invite Crew A 4 2.5 +0.30
Penobscot Bay Open Crew A 8 15.1 -0.54
NEISA Match Race Championship Keelboat Crew A 3 7.0 —
McMillan Cup Keelboat Crew A 4 8.8 —
McGill Cup Crew B 6 2.3 -0.09
Spring 2024 Team page Season
Salve Regina Team Race Invite Crew TR 10 10% —
McMerrick Cup SUNDAY Crew TR 5 40% —
McMerrick Cup SATURDAY Crew TR 8 38% —
CGA J70 Invite #1 Keelboat Crew A 9 5.2 —
Central 1 Crew A 6 11.5 +0.24
Alymers Team Race Invite Crew TR 9 56% —
Fall 2023 Team page Season
Sister Esther Trophy Crew A 14 12.2 +0.16
Oberg Trophy Crew C 14 10.0 -0.61
Nickerson Trophy Crew A 6 11.0 -0.03
NEISA Match Race Championship Keelboat Crew A 3 8.0 —

Linked Profiles

League Name School Year
ISSA Mallory Dietsch Toledo School of the ArtsToledo School of the Arts '23
ISSA Mallory Dietsch Westerville South High SchoolWesterville South High School '23
ISSA Mallory Dietsch Toledo Technology AcademyToledo Technology Academy '23

From the notes

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

All notes →