Boston Marathon logo
BOSTON MARATHON 2025

Tasfia Azim

Bib: 7133•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:40
Rank: #7634
Start → 5K
21:40 | 6:58/mi
10K· 6.21 mi
42:55
Rank: #7211 (+423)
5K → 10K
21:15 | 6:50/mi
15K· 9.32 mi
1:04:22
Rank: #7127 (+84)
10K → 15K
21:27 | 6:54/mi
20K· 12.43 mi
1:25:50
Rank: #6878 (+249)
15K → 20K
21:28 | 6:55/mi
Half· 13.11 mi
1:30:31
Rank: #6860 (+18)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:58
Rank: #6933 (-73)
Half → 25K
17:27 | 7:12/mi
30K· 18.64 mi
2:11:42
Rank: #7120 (-187)
25K → 30K
23:44 | 7:38/mi
20M
2:22:28
Rank: #7217 (-97)
30K → 20M
10:46 | 7:55/mi
21M
2:31:20
Rank: #7424 (-207)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:37:11
Rank: #7515 (-91)
21M → 35K
5:51 | 7:49/mi
23M
2:47:27
Rank: #7678 (-163)
35K → 23M
10:16 | 8:12/mi
24M
2:55:20
Rank: #7763 (-85)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
3:01:51
Rank: #7720 (+43)
24M → 40K
6:31 | 7:37/mi
25.2M
3:04:47
Rank: #7709 (+11)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:11:53
Rank: #7584 (+125)
25.2M → Finish
7:06 | 6:58/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:31
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:41:22
Pace7:44 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:0421:406:5821:40
6:58
-
10K
6.21 mi10:49:1942:556:5421:15
6:50
-0:08
15K
9.32 mi11:10:461:04:226:5421:27
6:54
+0:04
20K
12.43 mi11:32:141:25:506:5421:28
6:55
+0:01
Half
13.11 mi11:36:551:30:316:544:41
6:52
-0:03
25K
15.53 mi11:54:221:47:586:5717:27
7:12
+0:20
30K
18.64 mi12:18:062:11:427:0423:44
7:38
+0:26
20M
20.00 mi12:28:522:22:287:0710:46
7:55
+0:17
21M
21.00 mi12:37:442:31:207:128:52
8:52
+0:57
35K
21.75 mi12:43:352:37:117:145:51
7:49
-1:03
23M
23.00 mi12:53:512:47:277:1710:16
8:12
+0:23
24M
24.00 mi13:01:442:55:207:187:53
7:53
-0:19
40K
24.85 mi13:08:153:01:517:196:31
7:37
-0:16
25.2M
25.20 mi13:11:113:04:477:202:56
8:30
+0:53
Finish
26.22 mi13:18:173:11:537:197:06
6:58
-1:32

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:50 /mi

Average Pace

7:19 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:04

60% of race

Time at Steady Pace

54:45

29% of race

Time at Slower Pace

22:04

12% of race

Average Pace: 7:19 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:28:0421:406:5821:40
6:58
#7634
10K
6.21 mi10:49:1942:556:5421:15
6:50
#7211
15K
9.32 mi11:10:461:04:226:5421:27
6:54
#7127
20K
12.43 mi11:32:141:25:506:5421:28
6:55
#6878
Half
13.11 mi11:36:551:30:316:544:41
6:52
#6860
25K
15.53 mi11:54:221:47:586:5717:27
7:12
#6933
30K
18.64 mi12:18:062:11:427:0423:44
7:38
#7120
20M
20.00 mi12:28:522:22:287:0710:46
7:55
#7217
21M
21.00 mi12:37:442:31:207:128:52
8:52
#7424
35K
21.75 mi12:43:352:37:117:145:51
7:49
#7515
23M
23.00 mi12:53:512:47:277:1710:16
8:12
#7678
24M
24.00 mi13:01:442:55:207:187:53
7:53
#7763
40K
24.85 mi13:08:153:01:517:196:31
7:37
#7720
25.2M
25.20 mi13:11:113:04:477:202:56
8:30
#7709
Finish
26.22 mi13:18:173:11:537:197:06
6:58
#7584
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76348668667004(Top 25%)738(Top 6%)738(Top 13%)
10K6.21 mi3.10 mi7211+423744+122744+1226806(Top 24%)665(Top 5%)665(Top 12%)
15K9.32 mi3.11 mi7127+84731+13731+137004(Top 25%)738(Top 6%)738(Top 13%)
20K12.43 mi3.11 mi6878+249675+56675+566291(Top 22%)619(Top 5%)619(Top 11%)
Half13.11 mi0.68 mi6860+186756756736(Top 24%)714(Top 6%)714(Top 13%)
25K15.53 mi2.42 mi6933-73711-36711-367618(Top 27%)1079(Top 9%)1079(Top 20%)
30K18.64 mi3.11 mi7120-187805-94805-948749(Top 31%)1719(Top 14%)1719(Top 31%)
20M20.00 mi1.36 mi7217-97867-62867-629936(Top 35%)2397(Top 20%)2397(Top 44%)
21M21.00 mi1.00 mi7424-207967-100967-10012713(Top 45%)3974(Top 32%)3974(Top 73%)
35K21.75 mi0.75 mi7515-911029-621029-6210991(Top 39%)3089(Top 25%)3089(Top 56%)
23M23.00 mi1.25 mi7678-1631127-981127-9811363(Top 40%)3409(Top 28%)3409(Top 62%)
24M24.00 mi1.00 mi7763-851186-591186-5910443(Top 37%)3009(Top 25%)3009(Top 55%)
40K24.85 mi0.85 mi7720+431210-241210-247581(Top 27%)1786(Top 15%)1786(Top 33%)
25.2M25.20 mi0.35 mi7709+111218-81218-88846(Top 31%)2430(Top 20%)2430(Top 44%)
Finish26.22 mi1.02 mi7584+1251202+161202+165544(Top 20%)1073(Top 9%)1073(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7004

Females

738

F18-39

738

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6806

Females

665

F18-39

665

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7004

Females

738

F18-39

738

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6291

Females

619

F18-39

619

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6736

Females

714

F18-39

714

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7618

Females

1079

F18-39

1079

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8749

Females

1719

F18-39

1719

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9936

Females

2397

F18-39

2397

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12713

Females

3974

F18-39

3974

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

10991

Females

3089

F18-39

3089

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11363

Females

3409

F18-39

3409

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

10443

Females

3009

F18-39

3009

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7581

Females

1786

F18-39

1786

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8846

Females

2430

F18-39

2430

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5544

Females

1073

F18-39

1073

Passing Analysis

Category:
Athletes Passed
1712
Passed By
1662
Net Change
+50
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7634
5K → 10K47350+423#7634#7211
10K → 15K17793+84#7211#7127
15K → 20K29243+249#7127#6878
20K → Half3315+18#6878#6860
Half → 25K97170-73#6860#6933
25K → 30K130317-187#6933#7120
30K → 20M66163-97#7120#7217
20M → 21M34241-207#7217#7424
21M → 35K35126-91#7424#7515
35K → 23M57220-163#7515#7678
23M → 24M46131-85#7678#7763
24M → 40K9249+43#7763#7720
40K → 25.2M3827+11#7720#7709
25.2M → Finish14217+125#7709#7584
TOTALS17121662+50
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing