Mackenzie Speece

Crew Rating

Career: 1.36 percentile of ICSA crews
-0.250.000.250.500.751.00J. Grayson (14 races): -0.23J. GraysonJ. Crager (6 races): -0.14J. CragerFall 2024: rating 0.55Fall 2024Roger Williams UniversityT. Smith (6 races): +0.22T. SmithE. Herman (4 races): +0.06E. HermanE. Gaillard (17 races): +0.04Fall 2025: rating 0.73Fall 2025Roger Williams UniversityT. Smith (12 races): -0.94T. SmithSpring 2026: rating 0.65Spring 2026Roger Williams UniversityT. Smith (6 races): -0.53T. SmithJ. Lanz (19 races): -0.38J. LanzP. Chapman (7 races): -0.30Fall 2026: rating 0.39Fall 2026Roger Williams University
▲ 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 2026 Roger Williams University 0.39 Rating 0.39; 90% range -2.4 to 3.2; team skipper average 3.11 28.90 2.94 17 of 17 32 Team page
Spring 2026 Roger Williams University 0.65 Rating 0.65; 90% range -2.1 to 3.4; team skipper average 3.30 39.79 3.85 13 of 13 14 Team page
Fall 2025 Roger Williams University 0.73 Rating 0.73; 90% range -2.1 to 3.6; team skipper average 3.09 38.83 2.38 21 of 21 27 Team page
Fall 2024 Roger Williams University 0.55 Rating 0.55; 90% range -2.2 to 3.3; team skipper average 3.25 32.78 2.78 18 of 18 20 Team page

Team Race Rating

Rating Rank vs fleet rating Record
1.41 unranked (fewer than 30 matches as skipper, or not active) +0.00
about what the fleet rating predicts
as crew 49–43 (53%)
SeasonRegattas Skipper W–LCrew W–L
Spring 20268—49–43

Team race surprisal: regatta by regatta

Over 8 graded regattas (92 matches) the record is 49–43 against 42.9 wins the pre-event forecasts expected (+6.1). 2 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)
2026-04-26ICSA Women's Team Race National Championshipcrew3.193.191–21.0−0.000.072%
2026-04-11NEISA Women's Team Race Championship - Leglercrew3.033.037–97.0−0.000.061%
2026-04-04Yale Women'screw2.984.356–23.9+1.372.010%
2026-03-28Dellenbaugh Women's Team Race Trophycrew2.992.866–106.4−0.130.069%
2026-03-21Duplin Women's Team Racecrew2.953.5010–78.4+0.550.626%
2026-03-14Women's SNE Team Racecrew2.883.597–55.6+0.700.726%
2026-03-07Phebe Corckran King Women's Team Racecrew2.852.558–48.6−0.300.179%
2026-03-01Harvard Women's Team Racecrew2.654.304–41.9+1.652.66%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
Women's Atlantic Coast Championship Finals Women's Crew B 6 11.8 -0.53
Regis Trophy Women's Crew B 10 9.7 -0.40
Mt. Hope Bay Invite Crew C 9 9.2 +0.02
Coast Guard Invite Crew A 7 11.1 -0.30
Spring 2026 Team page Season
Yale Women's Women's Crew TR 8 75% —
Women's SNE Team Race Women's Crew TR 12 58% —
Women's Fleet Race National Championships Women's Crew B 2 16.0 -0.26
Women's Eastern National Semis Women's Crew A, B 4 9.2 -0.40
Phebe Corckran King Women's Team Race Women's Crew TR 12 67% —
NEISA Women's Team Race Championship - Legler Women's Crew TR 16 44% —
NEISA Women's Fleet Race Championship -Reed Trophy Women's Crew B 8 6.8 -0.28
ICSA Women's Team Race National Championship Women's Crew TR 14 50% —
Harvard Women's Team Race Women's Crew TR 8 50% —
Duplin Women's Team Race Women's Crew TR 16 62% —
Dellenbaugh Women's Team Race Trophy Women's Crew TR 16 38% —
Fall 2025 Team page Season
Women's Atlantic Coast Tournament Women's Crew B 4 3.2 +0.12
The Victorian Urn Trophy Women's Crew B 2 4.5 +0.10
Toni Deutsch '58 Trophy 2025 Women's Crew B 14 11.6 -0.01
Salt Pond Sunday Crew A 4 2.8 +0.06
BU Invite Crew B 3 6.0 +0.05
Spring 2025 Team page Season
O’Toole Saturday Crew B 5 2.6 -0.04
Fall 2024 Team page Season
Mt. Hope Bay Invite Crew A 14 9.0 -0.23
BU Invite Crew B 6 7.3 -0.14

From the notes

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

All notes →