Lassiter's current-season form is up 243% on last season (Season 7→24), while his Rating climbed 13→17. That makes this his strongest season for form to date.

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Portland Timbers · 10th	22	4	3	6.9	19	23
2025/26	Portland Timbers · 8th	22	0	3	6.7	13	7
2024/25	Chicago Fire	7	0	1	6.6	—	—
2024/25	CF Montreal · 8th	27	3	2	6.6	28	18
2023/24	CF Montreal · 10th	32	1	0	6.51	29	6
2023/24	Inter Miami	7	0	0	6.51	—	—
2022/23	Inter Miami · 6th	31	4	4	6.73	35	24

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 8 earlier seasons in the full career.

Costa Rica · international

Side	Apps	G
Costa Rica	34	2

Career caps & goals — tournament breakdown in the full career.

Scout report

Experienced headGoal-getting Centre-forward

A. Lassiter is a 32-year-old centre-forward at Portland Timbers, enjoying a standout season — 4 goals and 3 assists in 22 appearances, a Season grade of 24, top 66% of Major League Soccer centre-forwards. On long-term scout potential he's rated 16.8, ranking 411th of 491 in the Major League Soccer. A seasoned veteran, he has been a rotation option (42.7% of available minutes). He brings 0.61 goal contributions per 90 (0.35 goals, 0.26 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Lassiter.

Judged on this season alone, Lassiter graded 24 — a workmanlike campaign that ranks 33rd of 50 of the 50 centre-forwards in the Major League Soccer, on 4 goals and 3 assists in 22 appearances (0.608 involvements per 90).

Year-on-year, that's a clear step up on last season (Season 7 → 24). Across the 7 seasons we hold, it's his best return yet.

On long-term talent our Rating reads 17, 41st of 50 of the 50 centre-forwards in the Major League Soccer. At 32 Lassiter is into the veteran stage, where the age curve weighs on the projection, and a market index of 2.1 reflects that trajectory.

From the career report

Read the full career report →

Lassiter is operating at his career peak — the 2022/23 level is the level.

Peak: 2022/23Holding levelBreakout: 2022/234 clubs

Current potential41st of 50 centre-forwards · Major League Soccer Current season33rd of 50 centre-forwards · Major League Soccer 33rd-best centre-forward in the Major League Soccer 411th in the Major League Soccer · potential 41st-highest potential centre-forward in the Major League Soccer

16.8

Ratingi

41st of 50 centre-forwards

24.4

Seasoni

below regular-starter level

42.7%

Minutes

rotation minutes

0.61

Goal contrib / 90

strong end product

Output in context · Portland Timbers finished 8th of 15 · a mid-table side

Apps

Goals

Assists

G+A

0.18

Goals / app

4 goals in 22 appearances (0.18 per game) — light end product the role wants to see climb. He also laid on 3 assists, so the all-round involvement reads 7 goal contributions (0.32 per appearance).

Strengths

Final-third output. 0.61 goal contributions per 90 (0.35 goals, 0.26 assists) — productive for the role.

Watch points

Game time. Only 42.7% of available minutes — needs a settled run to prove the level.
Age curve. At 32, both level and resale value are on the downslope.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 16.8, Lassiter carries the 41st-highest potential of the centre-forwards in the Major League Soccer of 50. In the final third he profiles as a genuine goal threat (0.61 goal contributions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.8× and falling).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %42.7%

Available fixtures27 of 27

Goals / 900.347

Assists / 900.26

Goal contribution / 900.608

Defensive actions / 901.475

Player flow

Goal involvements7

Shot conversion %36.4

Shot accuracy %52.4

Pass accuracy %81

Dribble success %46.2

Cards / 900.174

Foul involvement / 902.17

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~5), then tapers with age. At 32, Lassiter sits on 2.1, past its peak and easing. The blue line is Lassiter's projected Rating — 16.8 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.

Season statistics

Bars = where he ranks among centre-forwards in the Major League Soccer with 600+ minutes this season.

Shooting

Goals4

Shots on target11

Shots21

Passing

Assists3

Chances created20

Passes367

Pass accuracy81%

Possession

Successful dribbles12

Dribble success46.2%

Duels won40

Duels won %54.1%

Fouls won19

Defending

Tackles8

Interceptions7

Blocks2

Fouls committed6

Yellow/red cards

Yellow cards2

Red cards0

Transfer history

€0.1M total transfer fees · 7 moves

Portland TimbersJan 2025 – nowFree Transfer

Chicago FireAug 2024 – Jan 2025€ 68K

CF MontrealApr 2023 – Aug 2024Swap

Inter MiamiDec 2021 – Apr 2023

Houston Dynamo(on loan)Aug 2020 – Dec 2021

LLD AlajuelenseJan 2018 – Aug 2020Free

Los Angeles GalaxyFeb 2015 – Jan 2018Free

Gaisuntil Feb 2015

About A. Lassiter

Ariel Daniel Lassiter Acuña is a 32-year-old centre-forward who plays for Portland Timbers, born on September 27, 1994 in Turrialba, standing 178 cm tall. He is from Costa Rica. Portland Timbers currently sit 10th of 15 in the Major League Soccer.

This season

In the current season, A. Lassiter has made 22 appearances with 4 goals and 3 assists across 1,037 minutes, averaging a 6.93 match rating over his last 10 rated games, with 2 yellow cards. Though primarily a centre-forward, he has also lined up in midfield this season.

When A. Lassiter plays, Portland Timbers's record this season is 11W-3D-11L — and his match ratings average 7.22 at home against 6.58 on the road.

Recent matches

September 27, 2026: 1-3 loss away at San Jose Earthquakes (67 minutes, 6.39 rating)
September 20, 2026: 0-1 loss at home vs Atlanta United FC (95 minutes, 7.7 rating)
September 13, 2026: 1-2 loss away at FC Dallas (34 minutes, 1 goal, 7.93 rating)
September 10, 2026: 2-2 draw at home vs St. Louis City (65 minutes, 6.9 rating)
September 6, 2026: 5-4 win at home vs Minnesota United FC (68 minutes, 1 assist, 6.84 rating)
August 30, 2026: 1-2 loss at home vs Austin (98 minutes, 6.6 rating)
August 23, 2026: 1-1 draw away at Los Angeles FC (54 minutes, 6.5 rating)
August 20, 2026: 3-1 win at home vs San Diego (83 minutes, 1 goal, 7 rating)
August 16, 2026: 1-2 loss away at Chicago Fire (34 minutes, 6.2 rating)
August 14, 2026: 3-1 win at home vs Club Tijuana (90 minutes, 1 goal, 7.2 rating)

A. Lassiter's next match is on October 11, 2026, when Portland Timbers face Sporting Kansas City away in the Major League Soccer.

Field Insider's view

Field Insider currently rates A. Lassiter at 16.8 with a Season form score of 24.4, ranking 411th of 491 centre-forwards in the Major League Soccer. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 2 career titles — among them the Carolina Challenge Cup. Full list in the career record.

Career

Across 13 recorded seasons, A. Lassiter has totalled 341 club appearances with 77 goals and 14 assists for 9 different clubs. His busiest campaign came in 2019/20, with 48 appearances for LD Alajuelense.

A. Lassiter's career has also included time at Chicago Fire, CF Montreal, Inter Miami, Houston Dynamo, LLD Alajuelense, Los Angeles Galaxy and Gais.

On the international stage, A. Lassiter has represented Costa Rica — 34 caps and 2 goals in our records.

Transfer news

No transfer news found for this player.

Profile

Season stats

Performance data · by competition

Career

Scout report

Output in context · Portland Timbers finished 8th of 15 · a mid-table side

Strengths

Watch points