Morning rush
26 min 678 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Griggs StreettoBoylston
Green Line
A direct MBTA train from Griggs Street to Boylston took a median 28 minutes across 3,363 observed trips; 90% of measured rides finished within approximately 33 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical28 min50th percentile
Slower trip33 min90th percentile
Scheduled29 minmedian timetable
On pace79%within 2 min of schedule
THE SHORT ANSWER
How long does Griggs Street to Boylston take?
The median completed ride from Griggs Street to Boylston was 28 minutes; the published schedule’s median was 29 minutes.
Based on 3,363 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 28 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 33 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Griggs Street to Boylston times by daypart
Morning rush produced the fastest median for Griggs Street to Boylston; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
28 min 871 trips · 82% on paceEvening rush
29 min 664 trips · 71% on paceOff-peak
27 min 1,150 trips · 76% on paceMEASUREMENT SAMPLE
How Griggs Street to Boylston was measured
The Griggs Street to Boylston estimate uses 3,363 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 Griggs Street
Trips related to Griggs Street to Boylston
The Griggs Street to Boylston record is accompanied by 6 other measured direct rides beginning at Griggs Street, each with a published median duration.