Morning rush
52 min 579 trips · 74% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Ball SquaretoHeath Street
Green Line
A direct MBTA train from Ball Square to Heath Street took a median 51 minutes across 2,855 observed trips; 90% of measured rides finished within approximately 59 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical51 min50th percentile
Slower trip59 min90th percentile
Scheduled52 minmedian timetable
On pace70%within 2 min of schedule
THE SHORT ANSWER
How long does Ball Square to Heath Street take?
The median completed ride from Ball Square to Heath Street was 51 minutes; the published schedule’s median was 52 minutes.
Based on 2,855 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 51 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 59 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Ball Square to Heath Street times by daypart
Off-peak produced the fastest median for Ball Square to Heath Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
52 min 701 trips · 68% on paceEvening rush
54 min 565 trips · 66% on paceOff-peak
49 min 1,010 trips · 70% on paceMEASUREMENT SAMPLE
How Ball Square to Heath Street was measured
The Ball Square to Heath Street estimate uses 2,855 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 →MORE FROM Ball Square
Trips related to Ball Square to Heath Street
The Ball Square to Heath Street record is accompanied by 6 other measured direct rides beginning at Ball Square, each with a published median duration.