Boston Marathon logo
BOSTON MARATHON 2025

Laura Thomas

Bib: 15418•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:17
Rank: #12206
Start → 5K
23:17 | 7:30/mi
10K· 6.21 mi
46:35
Rank: #12108 (+98)
5K → 10K
23:18 | 7:30/mi
15K· 9.32 mi
1:09:42
Rank: #11801 (+307)
10K → 15K
23:07 | 7:26/mi
20K· 12.43 mi
1:33:02
Rank: #11528 (+273)
15K → 20K
23:20 | 7:31/mi
Half· 13.11 mi
1:38:01
Rank: #11447 (+81)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:56:55
Rank: #11558 (-111)
Half → 25K
18:54 | 7:48/mi
30K· 18.64 mi
2:21:05
Rank: #11192 (+366)
25K → 30K
24:10 | 7:47/mi
20M
2:32:30
Rank: #11292 (-100)
30K → 20M
11:25 | 8:24/mi
21M
2:40:58
Rank: #11193 (+99)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
2:46:40
Rank: #11109 (+84)
21M → 35K
5:42 | 7:37/mi
23M
2:57:29
Rank: #11280 (-171)
35K → 23M
10:49 | 8:38/mi
24M
3:05:28
Rank: #11224 (+56)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:12:15
Rank: #11131 (+93)
24M → 40K
6:47 | 7:56/mi
25.2M
3:15:19
Rank: #11122 (+9)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:22:51
Rank: #10982 (+140)
25.2M → Finish
7:32 | 7:24/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
Time1:38:01
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:44:50
Pace8:00 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4623:177:3023:17
7:30
-
10K
6.21 mi11:19:0446:357:3023:18
7:30
0:00
15K
9.32 mi11:42:111:09:427:2923:07
7:26
-0:04
20K
12.43 mi12:05:311:33:027:2923:20
7:31
+0:05
Half
13.11 mi12:10:301:38:017:294:59
7:18
-0:13
25K
15.53 mi12:29:241:56:557:3218:54
7:48
+0:30
30K
18.64 mi12:53:342:21:057:3424:10
7:47
-0:01
20M
20.00 mi13:04:592:32:307:3711:25
8:24
+0:37
21M
21.00 mi13:13:272:40:587:408:28
8:28
+0:04
35K
21.75 mi13:19:092:46:407:405:42
7:37
-0:51
23M
23.00 mi13:29:582:57:297:4310:49
8:38
+1:01
24M
24.00 mi13:37:573:05:287:447:59
7:59
-0:39
40K
24.85 mi13:44:443:12:157:446:47
7:56
-0:03
25.2M
25.20 mi13:47:483:15:197:453:04
8:54
+0:58
Finish
26.22 mi13:55:203:22:517:457:32
7:24
-1:30

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

7:18 /mi

Average Pace

7:45 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:33

52% of race

Time at Steady Pace

1:03:32

31% of race

Time at Slower Pace

33:46

17% of race

Average Pace: 7:44 /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 mi10:55:4623:177:3023:17
7:30
#12206
10K
6.21 mi11:19:0446:357:3023:18
7:30
#12108
15K
9.32 mi11:42:111:09:427:2923:07
7:26
#11801
20K
12.43 mi12:05:311:33:027:2923:20
7:31
#11528
Half
13.11 mi12:10:301:38:017:294:59
7:18
#11447
25K
15.53 mi12:29:241:56:557:3218:54
7:48
#11558
30K
18.64 mi12:53:342:21:057:3424:10
7:47
#11192
20M
20.00 mi13:04:592:32:307:3711:25
8:24
#11292
21M
21.00 mi13:13:272:40:587:408:28
8:28
#11193
35K
21.75 mi13:19:092:46:407:405:42
7:37
#11109
23M
23.00 mi13:29:582:57:297:4310:49
8:38
#11280
24M
24.00 mi13:37:573:05:287:447:59
7:59
#11224
40K
24.85 mi13:44:443:12:157:446:47
7:56
#11131
25.2M
25.20 mi13:47:483:15:197:453:04
8:54
#11122
Finish
26.22 mi13:55:203:22:517:457:32
7:24
#10982
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122062907290711262(Top 40%)2511(Top 21%)2511(Top 46%)
10K6.21 mi3.10 mi12108+982865+422865+4212097(Top 43%)2868(Top 23%)2868(Top 52%)
15K9.32 mi3.11 mi11801+3072714+1512714+15111262(Top 40%)2511(Top 21%)2511(Top 46%)
20K12.43 mi3.11 mi11528+2732628+862628+8610864(Top 38%)2403(Top 20%)2403(Top 44%)
Half13.11 mi0.68 mi11447+812579+492579+4910130(Top 36%)2036(Top 17%)2036(Top 37%)
25K15.53 mi2.42 mi11558-1112681-1022681-10212302(Top 43%)3269(Top 27%)3269(Top 60%)
30K18.64 mi3.11 mi11192+3662565+1162565+1169785(Top 34%)2187(Top 18%)2187(Top 40%)
20M20.00 mi1.36 mi11292-1002663-982663-9813168(Top 46%)4060(Top 33%)4060(Top 74%)
21M21.00 mi1.00 mi11193+992655+82655+810268(Top 36%)2743(Top 22%)2743(Top 50%)
35K21.75 mi0.75 mi11109+842625+302625+309513(Top 33%)2368(Top 19%)2368(Top 43%)
23M23.00 mi1.25 mi11280-1712763-1382763-13814183(Top 50%)4886(Top 40%)4886(Top 89%)
24M24.00 mi1.00 mi11224+562774-112774-1111131(Top 39%)3363(Top 28%)3363(Top 61%)
40K24.85 mi0.85 mi11131+932758+162758+169726(Top 34%)2785(Top 23%)2785(Top 51%)
25.2M25.20 mi0.35 mi11122+92771-132771-1311223(Top 40%)3597(Top 29%)3597(Top 66%)
Finish26.22 mi1.02 mi10982+1402731+402731+408466(Top 30%)2277(Top 19%)2277(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11262

Females

2511

F18-39

2511

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12097

Females

2868

F18-39

2868

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11262

Females

2511

F18-39

2511

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10864

Females

2403

F18-39

2403

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10130

Females

2036

F18-39

2036

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

12302

Females

3269

F18-39

3269

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9785

Females

2187

F18-39

2187

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

13168

Females

4060

F18-39

4060

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10268

Females

2743

F18-39

2743

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9513

Females

2368

F18-39

2368

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

14183

Females

4886

F18-39

4886

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11131

Females

3363

F18-39

3363

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9726

Females

2785

F18-39

2785

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11223

Females

3597

F18-39

3597

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8466

Females

2277

F18-39

2277

Passing Analysis

Category:
Athletes Passed
2475
Passed By
1251
Net Change
+1224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12206
5K → 10K295197+98#12206#12108
10K → 15K36558+307#12108#11801
15K → 20K34471+273#11801#11528
20K → Half876+81#11528#11447
Half → 25K131242-111#11447#11558
25K → 30K42559+366#11558#11192
30K → 20M87187-100#11192#11292
20M → 21M15051+99#11292#11193
21M → 35K10117+84#11193#11109
35K → 23M69240-171#11109#11280
23M → 24M11054+56#11280#11224
24M → 40K11926+93#11224#11131
40K → 25.2M3728+9#11131#11122
25.2M → Finish15515+140#11122#10982
TOTALS24751251+1224
📊

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