April 20 Ottawa Senators 2–6 Toronto Maple Leafs Scotiabank Arena Recap  
Drake Batherson (1) – 16:18 First period 07:09 – Oliver Ekman-Larsson (1)
12:18 – Mitch Marner (1)
No scoring Second period 04:07 – ppJohn Tavares (1)
07:19 – ppWilliam Nylander (1)
Ridly Greig (1) – 04:00 Third period 04:45 – Morgan Rielly (1)
13:13 – ppMatthew Knies (1)
Linus Ullmark 18 saves / 24 shots Goalie stats Anthony Stolarz 31 saves / 33 shots
April 22 Ottawa Senators 2–3 OT Toronto Maple Leafs Scotiabank Arena Recap  
No scoring First period 03:43 – Morgan Rielly (2)
08:20 – ppJohn Tavares (2)
Brady Tkachuk (1) – pp – 15:41 Second period No scoring
Adam Gaudette (1) – 14:47 Third period No scoring
No scoring First overtime period 03:09 – Max Domi (1)
Linus Ullmark 18 saves / 21 shots Goalie stats Anthony Stolarz 26 saves / 28 shots
April 24 Toronto Maple Leafs 3–2 OT Ottawa Senators Canadian Tire Centre Recap  
No scoring First period No scoring
Matthew Knies (2) – pp – 08:31 Second period 01:38 – ppClaude Giroux (1)
Auston Matthews (1) – 00:32 Third period 11:22 – Brady Tkachuk (2)
Simon Benoit (1) – 01:19 First overtime period No scoring
Anthony Stolarz 18 saves / 20 shots Goalie stats Linus Ullmark 17 saves / 20 shots
April 26 Toronto Maple Leafs 3–4 OT Ottawa Senators Canadian Tire Centre Recap  
John Tavares (3) – 19:05 First period 09:03 – ppTim Stutzle (1)
14:11 – shShane Pinto (1)
Matthew Knies (3) – 10:12 Second period No scoring
Oliver Ekman-Larsson (2) – 14:31 Third period 07:32 – David Perron (1)
No scoring First overtime period 17:42 – Jake Sanderson (1)
Anthony Stolarz 17 saves / 21 shots Goalie stats Linus Ullmark 32 saves / 35 shots
April 29 Ottawa Senators 4–0 Toronto Maple Leafs Scotiabank Arena Recap  
No scoring First period No scoring
Thomas Chabot (1) – 03:46 Second period No scoring
Dylan Cozens (1) – sh – 08:24
Tim Stutzle (2) – en – 17:09
Brady Tkachuk (3) – en – 19:13
Third period No scoring
Linus Ullmark 29 saves / 29 shots Goalie stats Anthony Stolarz 15 saves / 17 shots
May 1 Toronto Maple Leafs 4–2 Ottawa Senators Canadian Tire Centre Recap  
Auston Matthews (2) – pp – 18:50 First period No scoring
William Nylander (2) – 00:43 Second period 07:28 – Brady Tkachuk (4)
Max Pacioretty (1) – 14:21
William Nylander (3) – en – 19:41
Third period 12:40 – David Perron (2)
Anthony Stolarz 21 saves / 23 shots Goalie stats Linus Ullmark 19 saves / 22 shots
Toronto won series 4–2