Boston Marathon logo
BOSTON MARATHON 2025

Heather Reynolds

Bib: 14482•F

UT

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:14
Rank: #12032
Start → 5K
23:14 | 7:29/mi
10K· 6.21 mi
47:42
Rank: #13713 (-1681)
5K → 10K
24:28 | 7:53/mi
15K· 9.32 mi
1:13:16
Rank: #15164 (-1451)
10K → 15K
25:34 | 8:14/mi
20K· 12.43 mi
1:40:33
Rank: #16612 (-1448)
15K → 20K
27:17 | 8:47/mi
Half· 13.11 mi
1:46:27
Rank: #16815 (-203)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:08:37
Rank: #17479 (-664)
Half → 25K
22:10 | 9:09/mi
30K· 18.64 mi
2:38:01
Rank: #17944 (-465)
25K → 30K
29:24 | 9:28/mi
20M
2:51:25
Rank: #18232 (-288)
30K → 20M
13:24 | 9:52/mi
21M
3:01:28
Rank: #18256 (-24)
20M → 21M
10:03 | 10:03/mi
35K· 21.75 mi
3:08:03
Rank: #18206 (+50)
21M → 35K
6:35 | 8:48/mi
23M
3:20:16
Rank: #18322 (-116)
35K → 23M
12:13 | 9:45/mi
24M
3:29:05
Rank: #18223 (+99)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:36:37
Rank: #18110 (+113)
24M → 40K
7:32 | 8:49/mi
25.2M
3:39:58
Rank: #18068 (+42)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:48:43
Rank: #18018 (+50)
25.2M → Finish
8:45 | 8:35/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
Time1:46:27
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time2:02:16
Pace9:20 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5423:147:2923:14
7:29
-
10K
6.21 mi11:19:2247:427:4124:28
7:53
+0:24
15K
9.32 mi11:44:561:13:167:5225:34
8:14
+0:21
20K
12.43 mi12:12:131:40:338:0527:17
8:47
+0:33
Half
13.11 mi12:18:071:46:278:075:54
8:39
-0:08
25K
15.53 mi12:40:172:08:378:1722:10
9:09
+0:30
30K
18.64 mi13:09:412:38:018:2929:24
9:28
+0:19
20M
20.00 mi13:23:052:51:258:3413:24
9:52
+0:24
21M
21.00 mi13:33:083:01:288:3810:03
10:03
+0:11
35K
21.75 mi13:39:433:08:038:396:35
8:48
-1:15
23M
23.00 mi13:51:563:20:168:4212:13
9:45
+0:57
24M
24.00 mi14:00:453:29:058:438:49
8:49
-0:56
40K
24.85 mi14:08:173:36:378:437:32
8:49
0:00
25.2M
25.20 mi14:11:383:39:588:443:21
9:43
+0:54
Finish
26.22 mi14:20:233:48:438:448:45
8:35
-1:08

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

7:29 /mi

Average Pace

8:44 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:16

32% of race

Time at Steady Pace

1:27:02

38% of race

Time at Slower Pace

1:08:25

30% of race

Average Pace: 8:43 /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 mi10:54:5423:147:2923:14
7:29
#12032
10K
6.21 mi11:19:2247:427:4124:28
7:53
#13713
15K
9.32 mi11:44:561:13:167:5225:34
8:14
#15164
20K
12.43 mi12:12:131:40:338:0527:17
8:47
#16612
Half
13.11 mi12:18:071:46:278:075:54
8:39
#16815
25K
15.53 mi12:40:172:08:378:1722:10
9:09
#17479
30K
18.64 mi13:09:412:38:018:2929:24
9:28
#17944
20M
20.00 mi13:23:052:51:258:3413:24
9:52
#18232
21M
21.00 mi13:33:083:01:288:3810:03
10:03
#18256
35K
21.75 mi13:39:433:08:038:396:35
8:48
#18206
23M
23.00 mi13:51:563:20:168:4212:13
9:45
#18322
24M
24.00 mi14:00:453:29:058:438:49
8:49
#18223
40K
24.85 mi14:08:173:36:378:437:32
8:49
#18110
25.2M
25.20 mi14:11:383:39:588:443:21
9:43
#18068
Finish
26.22 mi14:20:233:48:438:448:45
8:35
#18018
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi120322820282017569(Top 62%)6061(Top 50%)6061(Top 111%)
10K6.21 mi3.10 mi13713-16813774-9543774-95415465(Top 54%)4822(Top 39%)4822(Top 88%)
15K9.32 mi3.11 mi15164-14514660-8864660-88617569(Top 62%)6061(Top 50%)6061(Top 111%)
20K12.43 mi3.11 mi16612-14485508-8485508-84819834(Top 70%)7396(Top 60%)7396(Top 135%)
Half13.11 mi0.68 mi16815-2035618-1105618-11020013(Top 70%)7501(Top 61%)7501(Top 137%)
25K15.53 mi2.42 mi17479-6646049-4316049-43120526(Top 72%)7832(Top 64%)7832(Top 143%)
30K18.64 mi3.11 mi17944-4656370-3216370-32119785(Top 70%)7543(Top 62%)7543(Top 138%)
20M20.00 mi1.36 mi18232-2886549-1796549-17920472(Top 72%)8067(Top 66%)8067(Top 148%)
21M21.00 mi1.00 mi18256-246584-356584-3518460(Top 65%)7046(Top 58%)7046(Top 129%)
35K21.75 mi0.75 mi18206+506578+66578+617199(Top 61%)6478(Top 53%)6478(Top 118%)
23M23.00 mi1.25 mi18322-1166665-876665-8719629(Top 69%)7857(Top 64%)7857(Top 144%)
24M24.00 mi1.00 mi18223+996641+246641+2416366(Top 58%)6146(Top 50%)6146(Top 112%)
40K24.85 mi0.85 mi18110+1136609+326609+3215206(Top 54%)5649(Top 46%)5649(Top 103%)
25.2M25.20 mi0.35 mi18068+426591+186591+1815568(Top 55%)5891(Top 48%)5891(Top 108%)
Finish26.22 mi1.02 mi18018+506583+86583+816724(Top 59%)6427(Top 53%)6427(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17569

Females

6061

F18-39

6061

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

15465

Females

4822

F18-39

4822

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17569

Females

6061

F18-39

6061

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19834

Females

7396

F18-39

7396

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

20013

Females

7501

F18-39

7501

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20526

Females

7832

F18-39

7832

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19785

Females

7543

F18-39

7543

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20472

Females

8067

F18-39

8067

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18460

Females

7046

F18-39

7046

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17199

Females

6478

F18-39

6478

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19629

Females

7857

F18-39

7857

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16366

Females

6146

F18-39

6146

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15206

Females

5649

F18-39

5649

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15568

Females

5891

F18-39

5891

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16724

Females

6427

F18-39

6427

Passing Analysis

Category:
Athletes Passed
911
Passed By
6897
Net Change
-5986
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12032
5K → 10K131694-1681#12032#13713
10K → 15K221473-1451#13713#15164
15K → 20K271475-1448#15164#16612
20K → Half10213-203#16612#16815
Half → 25K41705-664#16815#17479
25K → 30K106571-465#17479#17944
30K → 20M59347-288#17944#18232
20M → 21M90114-24#18232#18256
21M → 35K7828+50#18256#18206
35K → 23M72188-116#18206#18322
23M → 24M12122+99#18322#18223
24M → 40K12815+113#18223#18110
40K → 25.2M5412+42#18110#18068
25.2M → Finish9040+50#18068#18018
TOTALS9116897-5986
📊

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