2006-07: Appearing in his first ever TV-Pucken tournament, Robin Lehner was on the roster for the winning Goteborg team. He was also a member of Frolunda’s U18 squad (U18 Elit) and appeared in two games with the Swedish National U16 team, posting a 2.00 GAA and a .950 save percentage in two games.
2007-08: The net-minder, still in Frolunda’s system, spent the season with Frolunda’s two U18 squads. His best numbers came in the U18 Elit league, where he posted a 1.00 GAA and a .941 save percentage through 11 games; his numbers with the Allsvenskan squad were similar. He was also a member of Frolunda’s U20 team, who took the SuperElit title. He also competed with Goteborg in the TV-Pucken tournament, his second straight season with the team.
2008-09: Lehner spent the majority of the season with Frolunda’s U20 squad, posting a 3.05 goals against average and a .903 save percentage. He also joined up with Sweden’s National U18 team, posting a 2.80 GAA and .916 save percentage through four games.
2009-10: The majority of Lehner’s time was spent in the OHL with Sault Ste. Marie, where he put up a .918 Save Percentage with a .280 GAA. In two games with Binghamton, Lehner would add a 3.00 GAA with a .898 Save %. The Playoffs weren’t good to Lehner either, as he fell to a 4.29 GAA and .874 Save Percentage in 5 games with the Greyhounds.
2010-11: The Sens goaltender-of-the-future played most of the season with Binghamton in the AHL recording a 7-6-2 record, 2.67 goals against average, a .912 save percentage and two shutouts in the regular season mainly in the backup role to veteran Barry Brust who had a good season. Lehner also got a taste of NHL, as was the organizational plan, getting into eight contests while sporting a 3.52 goals against average, .888 save percentage and 1-4 record. In the opening round of the AHL Calder Cup playoffs, he took over as the starter and never looked back, leading the team to the championship with a 14-4 record, 2.10 goals against average, a .939 save percentage and three shutouts. At the WJC in Buffalo he shared the minutes and posted a 2.77 goals against average, a .906 save percentage and 1-1-1 record in three games.
2011-12: Lehner was impressive in a handful of starts for the Senators and appeared in 40 games for Ottawa AHL affiliate Binghamton in his second pro season. He made a cameo appearance in October – stopping 23 of 25 shots in a 3-2 win over Toronto and was 2-2 including his first NHL shutout in a four-game stretch in late February and early March. Lehener finished with a 2.01 goals against and .935 save percentage in five NHL games. He split time with veteran Mike McKenna in Binghamton and was 13-22-1 with 2 shutouts and had a 3.26 goals against and .907 save percentage. Binghamton missed the AHL playoffs; finishing fifth in the East Division.
2012-13: Lehner appeared in 14 NHL games, including two playoff contests, as a backup to Craig Anderson with Ottawa and was selected to the 2013 AHL All-Star game for his play with the Senators' AHL affiliate in Binghamton. He was 5-3-4 in 12 regular season games with a 2.20 goals against and .936 save percentage and was 0-1 with a 2.45 goals against and .920 save percentage in 49 minutes of action in the playoffs. Lehner played in 31 games for Binghamton. He was 18-10-2 with 3 shutouts and had a 2.12 goals against and .938 save percentage. The Senators were second in the East Division and had the AHL's fourth-best record before being swept by Wilkes-Barre/Scranton in a first round series. Lehner was with Ottawa during the AHL playoffs and Nathan Lawson started all three games.
A hybrid butterfly goalie with excellent size and good overall skills, he uses his big frame to his advantage and challenges the shooters, although not always with the desired consistency. His rebound control needs work as does his concentration and positioning. He moves pretty well side to side and is tough to beat down low which are testaments to his conditioning and mobility.