Morning rush
11 min 746 trips · 87% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Ball SquaretoScience Park/West End
Green Line
A direct MBTA train from Ball Square to Science Park/West End took a median 11 minutes across 3,585 observed trips; 90% of measured rides finished within approximately 14 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical11 min50th percentile
Slower trip14 min90th percentile
Scheduled11 minmedian timetable
On pace87%within 2 min of schedule
THE SHORT ANSWER
How long does Ball Square to Science Park/West End take?
The median completed ride from Ball Square to Science Park/West End was 11 minutes; the published schedule’s median was 11 minutes.
Based on 3,585 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 11 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 14 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Ball Square to Science Park/West End times by daypart
Evening rush produced the fastest median for Ball Square to Science Park/West End; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
11 min 899 trips · 88% on paceEvening rush
11 min 707 trips · 85% on paceOff-peak
11 min 1,233 trips · 87% on paceMEASUREMENT SAMPLE
How Ball Square to Science Park/West End was measured
The Ball Square to Science Park/West End estimate uses 3,585 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 Science Park/West End
The Ball Square to Science Park/West End record is accompanied by 6 other measured direct rides beginning at Ball Square, each with a published median duration.