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Sean Keohane
Defense · BUF · NCAA

Sean Keohane

Age
21
Height
6'4"
Weight
198 lb
Shoots
L
Drafted
2023, round 6, 173rd overall
Born
USA
2025-26
NCAA · Harvard Univ.
Games
34
Goals
2
Assists
1
Points
3
Prospect score · 2026-27
Long shot

1019th of 1,160 prospects in the NHLnew

32nd in the BUF system · 12th among its defensemen

+0.6WAR a season if he sticks
Outlook
NHL odds1%Becomes a full-time NHL player — 200 games by 26
Impact odds<1%Better than the typical NHL regular among defensemen
Arrival—Too unlikely to stick for an arrival year to mean much
WAR a season if he sticks+0.0+0.6+1.4Low, middle and high outcomes among his comparables who became regulars

Of the 10 players most like him at the same point in their development, 0 became full-time NHL players.

Development

His scoring, converted to an NHL equivalent, against every player his age and position that season. Zero is the average player his age; the band is where his comparables were at each age.

-2-10+1151617181920Age2020-21, age 15, 26 GP: -1.07 vs. his age group (0.01 NHL-equivalent points per game)2021-22, age 16, 47 GP: -0.41 vs. his age group (0.04 NHL-equivalent points per game)2022-23, age 17, 46 GP: -0.71 vs. his age group (0.04 NHL-equivalent points per game)2023-24, age 18, 41 GP: -0.76 vs. his age group (0.04 NHL-equivalent points per game)2024-25, age 19, 11 GP: -0.82 vs. his age group (0.05 NHL-equivalent points per game)2025-26, age 20, 34 GP: -1.11 vs. his age group (0.02 NHL-equivalent points per game)
HimMiddle half of his comps at that ageAverage player his age
Comparables

Past prospects at the same position and the same stage after their draft, matched on draft slot, age, size and league-adjusted production. What they became is already known. The outcome is judged at 26: 200 NHL games by then makes a regular.

#PlayerMatchNHL GP by 26Career NHL GPOutcomeWAR a season
1Barron Smith2009 · #188 · at 2170%00Did not stick—
2Simon Fernholm2012 · #164 · at 2159%00Did not stick—
3Dominik Bielke2009 · #207 · at 2159%00Did not stick—
4Hardy Haman Aktell2016 · #108 · at 2155%66Did not stick—
5Steven Ruggiero2015 · #178 · at 2148%00Did not stick—
6Ryan Segalla2013 · #119 · at 2146%00Did not stick—
7Dane Birks2013 · #164 · at 2146%00Did not stick—
8Alfons Malmstrom2016 · #107 · at 2144%00Did not stick—
9Veeti Vainio2015 · #141 · at 2144%00Did not stick—
10Connor Hall2016 · #77 · at 2143%00Did not stick—
Season by season
SeasonGPGAPtsPIM
2025-26NCAA · Harvard Univ.3421320
2024-25NCAA · Harvard Univ.1102212
2023-24USHL · Tri-City Storm160114
2023-24BCHL · West Kelowna Warriors25681410
2022-23USHS-Prep · Dexter Southfield School32412160
2022-2318U AAA · Cape Cod Whalers 18U AAA141560
2021-22USHS-Prep · Dexter Southfield School24419230
2021-2218U AAA · South Shore Kings 18U AAA Prep231340
2020-2116U AAA · Cape Cod Whalers 16U AAA262350
2019-20USHS-Prep · Dexter Southfield School290000
2019-20EHF 15U Elite · Cape Cod Whalers 15U AAA41010
2019-2015U AAA · Cape Cod Whalers 15U AAA333690

The prospect score is a percentile of his expected outcome among every prospect in the league: the chance he becomes a regular, times how good his comparables who did became against others at their position. A player who never sticks counts as zero, which is why a long shot with a high ceiling can rank below a safe bet. All Sabres prospects · How the rankings work