Boston Marathon logo
BOSTON MARATHON 2025

Jessica Smith

Bib: 13909•F

CT

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
23:04
Rank: #11568
Start → 5K
23:04 | 7:25/mi
10K· 6.21 mi
45:56
Rank: #11178 (+390)
5K → 10K
22:52 | 7:22/mi
15K· 9.32 mi
1:08:48
Rank: #10898 (+280)
10K → 15K
22:52 | 7:22/mi
20K· 12.43 mi
1:31:37
Rank: #10514 (+384)
15K → 20K
22:49 | 7:21/mi
Half· 13.11 mi
1:36:30
Rank: #10399 (+115)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:54:21
Rank: #10101 (+298)
Half → 25K
17:51 | 7:22/mi
30K· 18.64 mi
2:17:13
Rank: #9374 (+727)
25K → 30K
22:52 | 7:22/mi
20M
2:27:13
Rank: #9063 (+311)
30K → 20M
10:00 | 7:22/mi
21M
2:34:53
Rank: #8766 (+297)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:40:05
Rank: #8570 (+196)
21M → 35K
5:12 | 6:57/mi
23M
2:49:01
Rank: #8213 (+357)
35K → 23M
8:56 | 7:08/mi
24M
2:56:09
Rank: #8019 (+194)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
3:02:16
Rank: #7840 (+179)
24M → 40K
6:07 | 7:09/mi
25.2M
3:04:55
Rank: #7744 (+96)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:11:53
Rank: #7583 (+161)
25.2M → Finish
6:58 | 6:50/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 Half
Distance13.11 mi
Time1:36:30
Pace7:22 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:23
Pace7:17 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5323:047:2523:04
7:25
-
10K
6.21 mi11:16:4545:567:2422:52
7:22
-0:03
15K
9.32 mi11:39:371:08:487:2322:52
7:22
0:00
20K
12.43 mi12:02:261:31:377:2222:49
7:21
-0:01
Half
13.11 mi12:07:191:36:307:224:53
7:09
-0:12
25K
15.53 mi12:25:101:54:217:2217:51
7:22
+0:13
30K
18.64 mi12:48:022:17:137:2222:52
7:22
0:00
20M
20.00 mi12:58:022:27:137:2210:00
7:22
0:00
21M
21.00 mi13:05:422:34:537:237:40
7:40
+0:18
35K
21.75 mi13:10:542:40:057:225:12
6:57
-0:43
23M
23.00 mi13:19:502:49:017:218:56
7:08
+0:11
24M
24.00 mi13:26:582:56:097:207:08
7:08
0:00
40K
24.85 mi13:33:053:02:167:206:07
7:09
+0:01
25.2M
25.20 mi13:35:443:04:557:202:39
7:41
+0:32
Finish
26.22 mi13:42:423:11:537:196:58
6:50
-0:51

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

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:34

95% of race

Time at Steady Pace

10:19

5% of race

Time at Slower Pace

0:00

0% 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 mi10:53:5323:047:2523:04
7:25
#11568
10K
6.21 mi11:16:4545:567:2422:52
7:22
#11178
15K
9.32 mi11:39:371:08:487:2322:52
7:22
#10898
20K
12.43 mi12:02:261:31:377:2222:49
7:21
#10514
Half
13.11 mi12:07:191:36:307:224:53
7:09
#10399
25K
15.53 mi12:25:101:54:217:2217:51
7:22
#10101
30K
18.64 mi12:48:022:17:137:2222:52
7:22
#9374
20M
20.00 mi12:58:022:27:137:2210:00
7:22
#9063
21M
21.00 mi13:05:422:34:537:237:40
7:40
#8766
35K
21.75 mi13:10:542:40:057:225:12
6:57
#8570
23M
23.00 mi13:19:502:49:017:218:56
7:08
#8213
24M
24.00 mi13:26:582:56:097:207:08
7:08
#8019
40K
24.85 mi13:33:053:02:167:206:07
7:09
#7840
25.2M
25.20 mi13:35:443:04:557:202:39
7:41
#7744
Finish
26.22 mi13:42:423:11:537:196:58
6:50
#7583
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115682551255110499(Top 37%)2115(Top 17%)2115(Top 39%)
10K6.21 mi3.10 mi11178+3902384+1672384+16710834(Top 38%)2214(Top 18%)2214(Top 40%)
15K9.32 mi3.11 mi10898+2802266+1182266+11810499(Top 37%)2115(Top 17%)2115(Top 39%)
20K12.43 mi3.11 mi10514+3842105+1612105+1619410(Top 33%)1691(Top 14%)1691(Top 31%)
Half13.11 mi0.68 mi10399+1152060+452060+458770(Top 31%)1382(Top 11%)1382(Top 25%)
25K15.53 mi2.42 mi10101+2981961+991961+998813(Top 31%)1564(Top 13%)1564(Top 29%)
30K18.64 mi3.11 mi9374+7271669+2921669+2926830(Top 24%)951(Top 8%)951(Top 17%)
20M20.00 mi1.36 mi9063+3111563+1061563+1066168(Top 22%)854(Top 7%)854(Top 16%)
21M21.00 mi1.00 mi8766+2971471+921471+925515(Top 19%)764(Top 6%)764(Top 14%)
35K21.75 mi0.75 mi8570+1961418+531418+535115(Top 18%)647(Top 5%)647(Top 12%)
23M23.00 mi1.25 mi8213+3571317+1011317+1014489(Top 16%)536(Top 4%)536(Top 10%)
24M24.00 mi1.00 mi8019+1941290+271290+275462(Top 19%)887(Top 7%)887(Top 16%)
40K24.85 mi0.85 mi7840+1791246+441246+444841(Top 17%)737(Top 6%)737(Top 13%)
25.2M25.20 mi0.35 mi7744+961231+151231+154360(Top 15%)682(Top 6%)682(Top 12%)
Finish26.22 mi1.02 mi7583+1611201+301201+304757(Top 17%)782(Top 6%)782(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10499

Females

2115

F18-39

2115

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10834

Females

2214

F18-39

2214

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10499

Females

2115

F18-39

2115

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9410

Females

1691

F18-39

1691

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8770

Females

1382

F18-39

1382

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8813

Females

1564

F18-39

1564

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6830

Females

951

F18-39

951

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6168

Females

854

F18-39

854

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5515

Females

764

F18-39

764

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5115

Females

647

F18-39

647

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4489

Females

536

F18-39

536

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5462

Females

887

F18-39

887

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4841

Females

737

F18-39

737

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4360

Females

682

F18-39

682

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4757

Females

782

F18-39

782

Passing Analysis

Category:
Athletes Passed
4238*
Passed By
253
Net Change
+3985
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11568
5K → 10K495105+390#11568#11178
10K → 15K33959+280#11178#10898
15K → 20K40622+384#10898#10514
20K → Half1205+115#10514#10399
Half → 25K32325+298#10399#10101
25K → 30K728*1+727#10101#9374
30K → 20M3176+311#9374#9063
20M → 21M3047+297#9063#8766
21M → 35K1971+196#8766#8570
35K → 23M3592+357#8570#8213
23M → 24M2006+194#8213#8019
24M → 40K1845+179#8019#7840
40K → 25.2M971+96#7840#7744
25.2M → Finish1698+161#7744#7583
TOTALS4238*253+3985

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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