Morning rush
25 min 646 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
BoylstontoGriggs Street
Green Line
A direct MBTA train from Boylston to Griggs Street took a median 26 minutes across 3,350 observed trips; 90% of measured rides finished within approximately 31 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical26 min50th percentile
Slower trip31 min90th percentile
Scheduled28 minmedian timetable
On pace86%within 2 min of schedule
THE SHORT ANSWER
How long does Boylston to Griggs Street take?
The median completed ride from Boylston to Griggs Street was 26 minutes; the published schedule’s median was 28 minutes.
Based on 3,350 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 26 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 31 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Boylston to Griggs Street times by daypart
Morning rush produced the fastest median for Boylston to Griggs Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
27 min 889 trips · 83% on paceEvening rush
28 min 629 trips · 78% on paceOff-peak
26 min 1,186 trips · 88% on paceMEASUREMENT SAMPLE
How Boylston to Griggs Street was measured
The Boylston to Griggs Street estimate uses 3,350 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 Boylston
Trips related to Boylston to Griggs Street
The Boylston to Griggs Street record is accompanied by 6 other measured direct rides beginning at Boylston, each with a published median duration.