Radim Mrtka
Defense · BUF · WHL

Radim Mrtka

Age
19
Height
6'6"
Weight
219 lb
Shoots
R
Drafted
2025, round 1, 9th overall
Born
CZE
2026-27
AHL · Rochester Americans
Games
4
Goals
0
Assists
0
Points
0

His NHL ratings and game log →

Prospect score · 2026-27
High end

45th of 1,160 prospects in the NHLnew

4th in the BUF system · 2nd among its defensemen

+0.4WAR a season if he sticks
Outlook
NHL odds83%Becomes a full-time NHL player — 200 games by 26
Impact odds33%Better than the typical NHL regular among defensemen
Arrival2028-29The season his comps who made it typically became regulars
WAR a season if he sticks+0.0+0.4+1.2Low, middle and high outcomes among his comparables who became regulars

Of the 10 players most like him at the same point in their development, 8 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.

-10+1+2161718Age2023-24, age 16, 19 GP: -0.15 vs. his age group (0.05 NHL-equivalent points per game)2024-25, age 17, 63 GP: +0.75 vs. his age group (0.11 NHL-equivalent points per game)2025-26, age 18, 43 GP: +0.60 vs. his age group (0.14 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
1Darnell Nurse2013 · #7 · at 1942%477804Regular+0.38
2Derek Forbort2010 · #15 · at 1941%255552Regular−0.08
3Jacob Trouba2012 · #9 · at 1941%516913Regular+0.56
4Travis Sanheim2014 · #17 · at 1941%416669Regular+0.81
5Griffin Reinhart2012 · #4 · at 1937%3737Did not stick—
6Erik Gudbranson2010 · #3 · at 1937%467847Regular+0.09
7Jake Gardiner2008 · #17 · at 1936%407645Regular+1.17
8Duncan Siemens2011 · #11 · at 1936%2020Did not stick—
9Haydn Fleury2014 · #7 · at 1936%244348Regular+0.17
10Tyler Myers2008 · #12 · at 1935%4731146Regular+0.26
Season by season
SeasonGPGAPtsPIM
2026-27AHL · Rochester Americans40002
2025-26WJC-20 · Czechia U2050002
2025-26WHL · Seattle Thunderbirds431333438
2025-26AHL · Rochester Americans80117
2024-25WJC-18 · Czechia U1851344
2024-25WHL · Seattle Thunderbirds433323546
2024-25Hlinka Gretzky Cup · Czechia U1850222
2024-25Czechia2 · HC Frydek-Mistek10000
2024-25Czechia U20 · HC Ocelari Trinec U20100446
2024-25Czechia · HC Ocelari Trinec100110
2024-25Champions HL · HC Ocelari Trinec70110
2023-24WJC-18 · Czechia U18500031
2023-24WHC-17 · Czechia U1782242
2023-24Czechia U20 · HC Ocelari Trinec U201947118
2023-24Czechia U17 · HC Ocelari Trinec U1718310138
2023-24Czechia · HC Ocelari Trinec30002
2022-23Czechia U17 · HC Ocelari Trinec U17361121314
2021-22MMCR · Kraj Vysocina U1560004
2021-22Czechia U17 · BK Havlickuv Brod U174127936
2021-22Czech U17 · BK Havlickuv Brod U1771234

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