Morning rush
47 min 622 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Back of the HilltoBall Square
Green Line
A direct MBTA train from Back of the Hill to Ball Square took a median 47 minutes across 3,385 observed trips; 90% of measured rides finished within approximately 55 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical47 min50th percentile
Slower trip55 min90th percentile
Scheduled50 minmedian timetable
On pace78%within 2 min of schedule
THE SHORT ANSWER
How long does Back of the Hill to Ball Square take?
The median completed ride from Back of the Hill to Ball Square was 47 minutes; the published schedule’s median was 50 minutes.
Based on 3,385 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 47 minutes. That was within 3 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 55 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Back of the Hill to Ball Square times by daypart
Off-peak produced the fastest median for Back of the Hill to Ball Square; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
49 min 841 trips · 79% on paceEvening rush
52 min 653 trips · 57% on paceOff-peak
45 min 1,269 trips · 82% on paceMEASUREMENT SAMPLE
How Back of the Hill to Ball Square was measured
The Back of the Hill to Ball Square estimate uses 3,385 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 Back of the Hill
Trips related to Back of the Hill to Ball Square
The Back of the Hill to Ball Square record is accompanied by 6 other measured direct rides beginning at Back of the Hill, each with a published median duration.