Boston Marathon logo
BOSTON MARATHON 2025

Lucy Dobbs

Bib: 158•F

IN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 2%
Gender (Female)
#0 / 12228
Top 0.4%
Division (F18-39)
#0 / 5469
Top 0.7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:08
Rank: #693
Start → 5K
18:08 | 5:50/mi
10K· 6.21 mi
36:22
Rank: #703 (-10)
5K → 10K
18:14 | 5:52/mi
15K· 9.32 mi
54:30
Rank: #658 (+45)
10K → 15K
18:08 | 5:50/mi
20K· 12.43 mi
1:12:45
Rank: #622 (+36)
15K → 20K
18:15 | 5:52/mi
Half· 13.11 mi
1:16:46
Rank: #629 (-7)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:05
Rank: #609 (+20)
Half → 25K
14:19 | 5:54/mi
30K· 18.64 mi
1:49:57
Rank: #586 (+23)
25K → 30K
18:52 | 6:04/mi
20M
1:58:28
Rank: #601 (-15)
30K → 20M
8:31 | 6:16/mi
21M
2:05:10
Rank: #609 (-8)
20M → 21M
6:42 | 6:42/mi
35K· 21.75 mi
2:09:43
Rank: #614 (-5)
21M → 35K
4:33 | 6:05/mi
23M
2:17:36
Rank: #612 (+2)
35K → 23M
7:53 | 6:18/mi
24M
2:23:42
Rank: #611 (+1)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:28:56
Rank: #603 (+8)
24M → 40K
5:14 | 6:07/mi
25.2M
2:31:14
Rank: #604 (-1)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:37:25
Rank: #603 (+1)
25.2M → Finish
6:11 | 6:04/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
Time1:16:46
Pace5:51 /mi
2nd Half
Distance13.11 mi
Time1:20:39
Pace6:09 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:05:1018:085:5018:08
5:50
-
10K
6.21 mi10:23:2436:225:5118:14
5:52
+0:02
15K
9.32 mi10:41:3254:305:5118:08
5:50
-0:02
20K
12.43 mi10:59:471:12:455:5118:15
5:52
+0:02
Half
13.11 mi11:03:481:16:465:514:01
5:53
+0:01
25K
15.53 mi11:18:071:31:055:5214:19
5:54
+0:01
30K
18.64 mi11:36:591:49:575:5418:52
6:04
+0:10
20M
20.00 mi11:45:301:58:285:558:31
6:16
+0:12
21M
21.00 mi11:52:122:05:105:586:42
6:42
+0:26
35K
21.75 mi11:56:452:09:435:584:33
6:05
-0:37
23M
23.00 mi12:04:382:17:365:597:53
6:18
+0:13
24M
24.00 mi12:10:442:23:425:596:06
6:06
-0:12
40K
24.85 mi12:15:582:28:566:005:14
6:07
+0:01
25.2M
25.20 mi12:18:162:31:146:002:18
6:40
+0:33
Finish
26.22 mi12:24:272:37:256:006:11
6:04
-0:36

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

5:50 /mi

Average Pace

6:00 /mi

Slowest Pace

6:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:25

94% of race

Time at Steady Pace

9:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:00 /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 mi10:05:1018:085:5018:08
5:50
#693
10K
6.21 mi10:23:2436:225:5118:14
5:52
#703
15K
9.32 mi10:41:3254:305:5118:08
5:50
#658
20K
12.43 mi10:59:471:12:455:5118:15
5:52
#622
Half
13.11 mi11:03:481:16:465:514:01
5:53
#629
25K
15.53 mi11:18:071:31:055:5214:19
5:54
#609
30K
18.64 mi11:36:591:49:575:5418:52
6:04
#586
20M
20.00 mi11:45:301:58:285:558:31
6:16
#601
21M
21.00 mi11:52:122:05:105:586:42
6:42
#609
35K
21.75 mi11:56:452:09:435:584:33
6:05
#614
23M
23.00 mi12:04:382:17:365:597:53
6:18
#612
24M
24.00 mi12:10:442:23:425:596:06
6:06
#611
40K
24.85 mi12:15:582:28:566:005:14
6:07
#603
25.2M
25.20 mi12:18:162:31:146:002:18
6:40
#604
Finish
26.22 mi12:24:272:37:256:006:11
6:04
#603
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi6934646609(Top 2%)39(Top 0.3%)39(Top 0.7%)
10K6.21 mi3.10 mi703-1045+145+1764(Top 3%)44(Top 0.4%)44(Top 0.8%)
15K9.32 mi3.11 mi658+4544+144+1609(Top 2%)39(Top 0.3%)39(Top 0.7%)
20K12.43 mi3.11 mi622+3643+143+1567(Top 2%)40(Top 0.3%)40(Top 0.7%)
Half13.11 mi0.68 mi629-74343839(Top 3%)43(Top 0.4%)43(Top 0.8%)
25K15.53 mi2.42 mi609+2042+142+1589(Top 2%)42(Top 0.3%)42(Top 0.8%)
30K18.64 mi3.11 mi586+234242626(Top 2%)38(Top 0.3%)38(Top 0.7%)
20M20.00 mi1.36 mi601-1543-143-1888(Top 3%)44(Top 0.4%)44(Top 0.8%)
21M21.00 mi1.00 mi609-843431218(Top 4%)60(Top 0.5%)60(Top 1%)
35K21.75 mi0.75 mi614-54343936(Top 3%)51(Top 0.4%)51(Top 0.9%)
23M23.00 mi1.25 mi612+24343891(Top 3%)46(Top 0.4%)46(Top 0.8%)
24M24.00 mi1.00 mi611+14343785(Top 3%)42(Top 0.3%)42(Top 0.8%)
40K24.85 mi0.85 mi603+84343605(Top 2%)36(Top 0.3%)36(Top 0.7%)
25.2M25.20 mi0.35 mi604-14343741(Top 3%)48(Top 0.4%)48(Top 0.9%)
Finish26.22 mi1.02 mi603+144-144-11123(Top 4%)65(Top 0.5%)65(Top 1%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

609

Females

39

F18-39

39

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

764

Females

44

F18-39

44

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

609

Females

39

F18-39

39

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

567

Females

40

F18-39

40

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

839

Females

43

F18-39

43

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

589

Females

42

F18-39

42

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

626

Females

38

F18-39

38

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

888

Females

44

F18-39

44

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1218

Females

60

F18-39

60

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

936

Females

51

F18-39

51

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

891

Females

46

F18-39

46

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

785

Females

42

F18-39

42

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

605

Females

36

F18-39

36

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

741

Females

48

F18-39

48

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1123

Females

65

F18-39

65

Passing Analysis

Category:
Athletes Passed
278
Passed By
188
Net Change
+90
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#693
5K → 10K3141-10#693#703
10K → 15K483+45#703#658
15K → 20K4610+36#658#622
20K → Half07-7#622#629
Half → 25K288+20#629#609
25K → 30K4118+23#609#586
30K → 20M924-15#586#601
20M → 21M1321-8#601#609
21M → 35K813-5#609#614
35K → 23M1412+2#614#612
23M → 24M1110+1#612#611
24M → 40K135+8#611#603
40K → 25.2M23-1#603#604
25.2M → Finish1413+1#604#603
TOTALS278188+90
📊

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