Thomas Sitzmann

Rating History

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded4.494 of 25135Fall 2026
Keelboat2.211 of 9819Fall 2025

Team Race Rating

Rating Rank vs fleet rating Record
3.69 (fleet 5.36) 2 of 328 −0.19 ± 0.13
worse at team racing than the fleet rating predicts
as skipper 190–74 (72%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2026450–9—
Spring 2025562–38—
Spring 2024678–27—
3.253.53.75Spring 2024Spring 2025Spring 2026St. Mary's Team Race Inter-Conference (2024-03-09): rating 3.43, fleet rating alone 3.42, offset +0.00; record 18-3 in this boat63rd Jan Friis Team Race (2024-03-23): rating 3.43, fleet rating alone 3.45, offset -0.03; record 0-2 in this boat63rd Jan Friis Team Race (2024-03-23): rating 3.43, fleet rating alone 3.45, offset -0.03; record 3-3 in this boatThe 41st Cardinal Red Lynne Marchiando Trophy (2024-03-30): rating 3.36, fleet rating alone 3.45, offset -0.09; record 9-9 in this boatThompson Trophy Camel (2024-04-13): rating 3.33, fleet rating alone 3.47, offset -0.15; record 20-1 in this boatICSA Open Team Racing National Championship (2024-04-25): rating 3.38, fleet rating alone 3.46, offset -0.08; record 13-9 in this boatSt. Mary's College of MD Team Race (2025-03-08): rating 3.41, fleet rating alone 3.52, offset -0.11; record 12-7 in this boat64th Jan Friis Team Race (2025-03-22): rating 3.51, fleet rating alone 3.61, offset -0.10; record 12-4 in this boat2025 Marchiando Trophy-Red Regatta (2025-03-29): rating 3.50, fleet rating alone 3.60, offset -0.10; record 4-5 in this boat2025 Marchiando Trophy-Red Regatta (2025-03-29): rating 3.50, fleet rating alone 3.60, offset -0.10; record 8-4 in this boatThompson Trophy Camel (2025-04-12): rating 3.51, fleet rating alone 3.65, offset -0.14; record 11-7 in this boatICSA Open Team Race National Championship (2025-04-24): rating 3.49, fleet rating alone 3.67, offset -0.18; record 1-5 in this boatICSA Open Team Race National Championship (2025-04-24): rating 3.49, fleet rating alone 3.67, offset -0.18; record 4-5 in this boatICSA Open Team Race National Championship (2025-04-24): rating 3.49, fleet rating alone 3.67, offset -0.18; record 10-1 in this boatNelson Roltsch Team Race (2026-02-28): rating 3.62, fleet rating alone 3.82, offset -0.20; record 10-0 in this boatSt. Mary's Team Race Inter-Conference (2026-03-07): rating 3.64, fleet rating alone 3.83, offset -0.19; record 9-0 in this boatThompson Trophy (2026-04-11): rating 3.56, fleet rating alone 3.74, offset -0.18; record 2-0 in this boatThompson Trophy (2026-04-11): rating 3.56, fleet rating alone 3.74, offset -0.18; record 12-1 in this boatICSA Open Team Race National Championship (2026-04-23): rating 3.59, fleet rating alone 3.76, offset -0.17; record 17-8 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 15 graded regattas (264 matches) the record is 190–74 against 203.5 wins the pre-event forecasts expected (−13.5). 2 regattas clearly above the rating (P ≤ 20%), 9 clearly below (P ≥ 80%); 29 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-04-23ICSA Open Team Race National Championshipskipper4.313.7617–819.3−0.540.992%
2026-04-11Thompson Trophyskipper4.275.0714–113.2+0.800.442%
2026-03-07St. Mary's Team Race Inter-Conferenceskipper4.277.279–08.0≥+3.001.533%
2026-02-28Nelson Roltsch Team Raceskipper4.217.2110–08.5≥+3.002.417%
2025-04-24ICSA Open Team Race National Championshipskipper4.193.7515–1117.2−0.440.789%
2025-04-12Thompson Trophy Camelskipper4.102.7611–715.0−1.354.1>99%
2025-03-292025 Marchiando Trophy-Red Regattaskipper4.053.0212–915.6−1.032.899%
2025-03-2264th Jan Friis Team Raceskipper4.043.9912–412.1−0.060.067%
2025-03-08St. Mary's College of MD Team Raceskipper3.944.1112–711.4+0.170.148%
2024-04-25ICSA Open Team Racing National Championshipskipper3.933.5213–914.8−0.410.587%
2024-04-13Thompson Trophy Camelskipper3.806.1720–115.3+2.376.5<1%
2024-03-30The 41st Cardinal Red Lynne Marchiando Trophyskipper3.822.499–913.2−1.334.2>99%
2024-03-2363rd Jan Friis Team Raceskipper3.891.933–56.0−1.964.3>99%
2024-03-09St. Mary's Team Race Inter-Conferenceskipper3.903.2418–319.2−0.660.691%
2024-03-02McIntyre Team Raceskipper3.886.8815–014.9≥+3.000.191%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
PCCSC Open Singlehanded Championship Singlehanded Skipper A 7 1.1 6.70
Spring 2026 Team page Season
Thompson Trophy Skipper TR 15 93% —
St. Mary's Team Race Inter-Conference Skipper TR 9 100% —
Open Fleet Race National Championships Skipper A 14 4.6 5.64
Nelson Roltsch Team Race Skipper TR 10 100% —
ICSA Open Team Race National Championship Skipper TR 25 68% —
Fall 2025 Team page Season
College Sailing Match Race National Championship Keelboat Skipper A 1 10.0 —
PCCSC Richard Sweet Match Race Championship Keelboat Skipper A 1 1.0 —
PCCSC Men's Singlehanded Championship Singlehanded Skipper A 10 2.1 3.99
Open Atlantic Coast Championship Finals Skipper A 14 6.1 5.13
Glen S. Foster Trophy Singlehanded Skipper A 7 5.7 4.76
The 34th Captain Hurst Bowl Skipper A 7 3.9 4.84
Spring 2025 Team page Season
Thompson Trophy Camel Skipper TR 18 61% —
St. Mary's College of MD Team Race Skipper TR 19 63% —
Open Western Semi Finals Skipper A 8 3.1 5.86
Open Fleet Race National Championships Skipper A 7 4.7 5.62
ICSA Open Team Race National Championship Skipper TR 25 56% —
64th Jan Friis Team Race Skipper TR 16 75% —
2025 Marchiando Trophy-Red Regatta Skipper TR 21 57% —
Fall 2024 Team page Season
PCCSC Richard Sweet Match Race Championship Keelboat Crew A 1 1.0 —
Open Atlantic Coast Championship Round 1A Skipper A 18 5.4 5.04
Open Atlantic Coast Championship Final Skipper B 7 5.7 5.11
ICSA Match Race National Championship Keelboat Crew A 1 4.0 —
Danmark Trophy Skipper A 8 10.6 4.17
The 33rd Captain Hurst Bowl Skipper A 13 2.9 5.57
Spring 2024 Team page Season
Top-9 Invite Skipper A 9 2.3 4.32
Thompson Trophy Camel Skipper TR 21 95% —
St. Mary's Team Race Inter-Conference Skipper TR 21 86% —
Open Dinghy National Championship Skipper A 10 8.2 4.75
McIntyre Team Race Skipper TR 15 100% —
ICSA Open Team Racing National Championship Skipper TR 22 59% —
Eastern Open National Semi-Final Skipper B 10 4.0 5.21
63rd Jan Friis Team Race Skipper TR 8 38% —
The 41st Cardinal Red Lynne Marchiando Trophy Skipper TR 18 50% —
Fall 2023 Team page Season
PCCSC Match Race Championship Keelboat Skipper A 1 1.0 —
Open ACCs Round 1B Skipper B 14 3.8 5.43
ICSA Match Race National Championship Keelboat Skipper A 1 5.0 —
Fall Pacific Coast Championship Skipper A 10 1.2 6.81
Danmark Trophy Skipper B 9 8.4 4.06
Atlantic Coast Open Championship Finals Skipper B 14 7.1 4.76

Linked Profiles

League Name School Year
ISSA Thomas Sitzmann Severn SchoolSevern School '23

From the notes

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

All notes →