OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

LechmeretoBall Square

Green Line

A direct MBTA train from Lechmere to Ball Square took a median 8.2 minutes across 3,597 observed trips; 90% of measured rides finished within approximately 9.8 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical8.2 min50th percentile
Slower trip9.8 min90th percentile
Scheduled10 minmedian timetable
On pace98%within 2 min of schedule

THE SHORT ANSWER

How long does Lechmere to Ball Square take?

The median completed ride from Lechmere to Ball Square was 8.2 minutes; the published schedule’s median was 10 minutes.

Based on 3,597 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 8.2 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 9.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Lechmere to Ball Square times by daypart

Midday produced the fastest median for Lechmere to Ball Square; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

8.2 min 582 trips · 98% on pace

Midday

8.2 min 919 trips · 98% on pace

Evening rush

8.8 min 668 trips · 99% on pace

Off-peak

8.2 min 1,428 trips · 99% on pace

MEASUREMENT SAMPLE

How Lechmere to Ball Square was measured

The Lechmere to Ball Square estimate uses 3,597 completed direct-trip stop-timestamp pairs matched to the schedule active for each observed train.

We publish the median because one dramatic delay should not define an everyday journey, and the 90th percentile because riders still need to understand the bad end of normal.

We do not infer why a trip ran slowly. Construction, incidents, crowding and weather require separate evidence.

Read the complete method →