Karina Bertelsmann

Rating History

Crew Rating

Career: 27.47 percentile of ICSA crews
-0.50-0.250.00E. Cleaves (8 races): -0.49E. CleavesD. Kostjuhin (26 races): -0.28D. KostjuhinFall 2025: rating -0.23Fall 2025University of Texas
▲ 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 2025 University of Texas -0.23 Rating -0.23; 90% range -3.1 to 2.7; team skipper average 0.62 16.22 30.00 4 of 5 34 Team page

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Keelboat0.76unranked (fewer than 10 races or not active)1Fall 2021

Team Race Rating

Rating Rank vs fleet rating Record
1.35 (fleet 1.85) unranked (fewer than 30 matches as skipper, or not active) +0.02 ± 0.18
about what the fleet rating predicts
as skipper 24–43 (36%)
as crew 0–6 (0%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202235–7—
Spring 202116–3—
Spring 202024–170–6
Spring 201929–16—
0.250.50.7511.25Spring 2019Spring 2020Spring 2021Spring 2022Garner-Tullis Team Race (2019-03-09): rating 0.35, fleet rating alone 0.36, offset -0.00; record 7-4 in this boatSEISA Clinegatta (2020-01-26): rating 0.58, fleet rating alone 0.57, offset +0.02; record 4-2 in this boatNelson Roltsch Team Race (2020-02-15): rating 0.57, fleet rating alone 0.57, offset +0.01; record 0-3 in this boatNelson Roltsch Team Race (2020-02-15): rating 0.57, fleet rating alone 0.57, offset +0.01; record 0-3 in this boatNelson Roltsch Team Race (2020-02-15): rating 0.57, fleet rating alone 0.57, offset +0.01; record 0-3 in this boatNelson Roltsch Team Race (2020-02-15): rating 0.57, fleet rating alone 0.57, offset +0.01; record 0-6 in this boatSEISA Team Race Championship (2021-04-24): rating 0.55, fleet rating alone 0.55, offset +0.00; record 6-3 in this boatMcCarthy Cup Team Race (2022-03-05): rating 1.24, fleet rating alone 1.24, offset +0.01; record 3-0 in this boatSEISA Open Team Race Championship (2022-04-09): rating 1.23, fleet rating alone 1.21, offset +0.03; record 2-4 in this boatSEISA Women's Team Race Championship (2022-04-09): rating 1.23, fleet rating alone 1.21, offset +0.03; record 0-3 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 9 graded regattas (73 matches) the record is 24–49 against 22.9 wins the pre-event forecasts expected (+1.1). 0 regattas clearly above the rating (P ≤ 20%), 4 clearly below (P ≥ 80%); 2 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2022-04-09SEISA Women's Team Race Championshipskipper1.69-1.310–30.0≤−3.000.0>99%
2022-04-09SEISA Open Team Race Championshipskipper1.651.892–41.8+0.240.066%
2022-03-05McCarthy Cup Team Raceskipper1.694.693–02.5≥+3.000.857%
2021-04-24SEISA Team Race Championshipskipper1.052.216–35.7+1.160.271%
2020-02-15Nelson Roltsch Team Raceskipper1.09-1.910–150.5≤−3.000.7>99%
2020-02-15Nelson Roltsch Team Racecrew1.09-1.910–60.0≤−3.000.0>99%
2020-01-26SEISA Clinegattaskipper1.030.844–24.2−0.190.077%
2019-03-09Garner-Tullis Team Raceskipper0.771.257–46.2+0.480.341%
2019-02-16Nelson Roltsch Team Raceskipper0.350.382–122.0+0.030.087%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2025 Team page Season
Troy Swetnam Memorial Regatta 2025 Crew A 6 7.0 -0.08
SEISA Fall Women's Fleet Race Champs Women's Crew A 8 5.6 -0.49
Kathryn Hammond Crew B 11 10.4 -0.29
Baldwin Wood Crew A 9 12.3 +0.10
Spring 2022 Team page Season
SEISA Women's Team Race Championship Women's Skipper TR 3 0% —
SEISA Open Team Race Championship Skipper TR 9 56% —
2022 SailPack Oriental Intercollegiate Skipper A 11 7.1 2.17
Q1 Regatta Skipper A 14 2.9 0.15
North Designate/St. Francis Skipper A 6 11.7 1.00
McCarthy Cup Team Race Skipper TR 5 100% —
Harris Kempner Memorial Regatta Skipper B 6 1.0 —
College Sailing Regional Teams Nat'l Invitational Skipper A 13 7.8 1.86
Fall 2021 Team page Season
SEISA Match Race Championship Keelboat Skipper A 1 2.0 —
SEISA Fall Women's Championship Women's Skipper B 10 3.2 -0.56
Oberg Trophy Skipper B 12 16.6 0.45
Kings Point Dinghy Open Skipper B 7 14.9 0.86
Kathryn Hammond Memorial Regatta Skipper A 12 3.9 1.18
Spring 2021 Team page Season
SEISA Women's Championship Women's Skipper B 6 3.3 -1.80
SEISA Team Race Championship Skipper TR 9 67% —
2021 College Sailing Women's Nationals Women's Skipper B 16 15.6 0.81
Spring 2020 Team page Season
SEISA Clinegatta Skipper TR 8 75% —
Nelson Roltsch Team Race Skipper TR 21 0% —
Harris Kempner Memorial Skipper A 12 4.3 1.15
Eckerd Interconference Skipper B 6 13.5 0.48
Fall 2019 Team page Season
SIESA Clinic Skipper A 2 1.0 —
Patrick Sullivan Burtchaell Regatta Skipper B 4 3.2 0.64
Owlapalooza Skipper A 6 3.3 1.85
Kathryn Hammond Interconference Regatta Skipper B 4 4.5 0.73
Corpus Chirsti Invite 2019 Skipper A 6 2.8 1.41
2019 Womens Champs Women's Skipper B 6 3.7 -3.33
2019 Kilpatrick Regatta Skipper A 8 1.8 1.52
Spring 2019 Team page Season
Sperry Women's Western Semifinal Women's Skipper B 13 16.6 -0.14
SEISA Women's Championship Women's Skipper B 12 2.3 1.04
SEISA Team Race Championship Skipper TR 6 33% —
Q1 Regatta Skipper A 6 4.0 1.33
Nelson Roltsch Team Race Skipper TR 14 14% —
Harris Kempner Memorial Crew A 10 4.9 —
Garner-Tullis Team Race Skipper TR 11 64% —
Benjamin C. Haller Memorial Regatta Skipper A 2 4.0 -1.41
Spring 2018 Team page Season
Sperry Women's Eastern Semifinal Women's Crew B 12 14.7 —
SEISA Women's Championship Women's Skipper B 6 1.8 1.80
Qualifier 1 Crew B 4 10.0 —
Barnyard Bizarre Skipper B 4 2.8 0.55
2018 Harris Kempner Skipper B 2 7.5 -1.92
Fall 2017 Team page Season
Owlapalooza 2017 Skipper B 6 6.2 -0.42
Kilpatrick Regatta 2017 Crew A 2 2.0 —
Kathryn Hammond Memorial Interconference Crew A 4 5.8 —
Back to the Bayou Skipper B 4 6.5 -1.09
Aggie Fall Crew A 5 6.0 —

From the notes

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

All notes →