Ian Seymour is a left-handed starter for the Tampa Bay Rays who reached the majors in June 2025 at just 26 years old. The Madison, Wisconsin native has shown steady command on the mound since day one, posting a 3.63 ERA in his rookie year and cementing himself as a legitimate piece of Tampa Bay’s rotation.
Quick Facts
- Full name: Ian Seymour
- Position: Starting Pitcher
- Team: Tampa Bay Rays
- Number: 61
- Bats / Throws: Left / Left
- Height / Weight: 6’0″ / 216 lb
- Born: December 13, 1998 (27 years old)
- Hometown: Madison, United States 🇺🇸
- MLB Debut: June 9, 2025
Background
Born December 13, 1998, in Madison, Seymour grew up in a region with a solid baseball culture. He developed his craft through the minor leagues, refining his control and expanding his pitch mix before the Rays called him up. June 9, 2025 was the day it became official: Seymour stepped onto an MLB mound for the first time and began writing his chapter in Tampa Bay history.
Professional Career
In his 2025 debut season, Seymour threw 57.0 innings, went 4-3, struck out 64 batters and posted a 1.18 WHIP — solid control numbers for any rookie finding his footing in the big leagues.
2026 was where Seymour showed real growth. He more than doubled his workload to 113.1 innings, went 9-6 with 138 strikeouts and brought his WHIP down to 1.14. His ERA settled at 4.21 — a natural adjustment as hitters got more looks at him — but the durability and the strikeout jump told the more important story: this is a pitcher learning how to compete night after night in the majors.
Career Stats
- 2025 – Tampa Bay Rays: 4-3 | 57.0 IP | 64 K | 3.63 ERA | 1.18 WHIP
- 2026 – Tampa Bay Rays: 9-6 | 113.1 IP | 138 K | 4.21 ERA | 1.14 WHIP
Awards and Milestones
Seymour hasn’t collected individual hardware yet — no Rookie of the Year nods, no All-Star trips. But going from 57 innings in year one to 113-plus in year two, while keeping his WHIP under 1.20 both times, puts him on a trajectory that could change that conversation sooner than later.
Worth Noting
Maintaining a WHIP below 1.20 across your first two MLB seasons isn’t something every young arm pulls off. For a left-handed starter still learning the league, that kind of command is the foundation everything else gets built on. Seymour is part of a generation of lefties reshaping how teams build rotations — and the Rays, who know a thing or two about developing pitchers, seem to like what they see.
