Boston Marathon logo
BOSTON MARATHON 2025

Sandra Eerhart

Bib: 14930•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
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
23:54
Rank: #13933
Start → 5K
23:54 | 7:42/mi
10K· 6.21 mi
47:34
Rank: #13556 (+377)
5K → 10K
23:40 | 7:37/mi
15K· 9.32 mi
1:11:03
Rank: #13070 (+486)
10K → 15K
23:29 | 7:34/mi
20K· 12.43 mi
1:34:36
Rank: #12597 (+473)
15K → 20K
23:33 | 7:35/mi
Half· 13.11 mi
1:39:43
Rank: #12556 (+41)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:58:15
Rank: #12298 (+258)
Half → 25K
18:32 | 7:39/mi
30K· 18.64 mi
2:23:22
Rank: #12187 (+111)
25K → 30K
25:07 | 8:05/mi
20M
2:34:40
Rank: #12181 (+6)
30K → 20M
11:18 | 8:19/mi
21M
2:47:06
Rank: #13532 (-1351)
20M → 21M
12:26 | 12:26/mi
35K· 21.75 mi
2:53:27
Rank: #13592 (-60)
21M → 35K
6:21 | 8:29/mi
23M
3:04:05
Rank: #13548 (+44)
35K → 23M
10:38 | 8:29/mi
24M
3:13:29
Rank: #13901 (-353)
23M → 24M
9:24 | 9:24/mi
40K· 24.85 mi
3:21:15
Rank: #14021 (-120)
24M → 40K
7:46 | 9:05/mi
25.2M
3:25:30
Rank: #14293 (-272)
40K → 25.2M
4:15 | 12:19/mi
Finish· 26.22 mi
3:34:25
Rank: #14396 (-103)
25.2M → Finish
8:55 | 8:45/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
Time1:39:43
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:54:42
Pace8:45 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0823:547:4223:54
7:42
-
10K
6.21 mi11:17:4847:347:3923:40
7:37
-0:05
15K
9.32 mi11:41:171:11:037:3723:29
7:34
-0:03
20K
12.43 mi12:04:501:34:367:3723:33
7:35
+0:01
Half
13.11 mi12:09:571:39:437:365:07
7:30
-0:05
25K
15.53 mi12:28:291:58:157:3718:32
7:39
+0:09
30K
18.64 mi12:53:362:23:227:4125:07
8:05
+0:26
20M
20.00 mi13:04:542:34:407:4411:18
8:19
+0:14
21M
21.00 mi13:17:202:47:067:5712:26
12:26
+4:07
35K
21.75 mi13:23:412:53:277:596:21
8:29
-3:57
23M
23.00 mi13:34:193:04:058:0010:38
8:29
0:00
24M
24.00 mi13:43:433:13:298:049:24
9:24
+0:55
40K
24.85 mi13:51:293:21:158:067:46
9:05
-0:19
25.2M
25.20 mi13:55:443:25:308:094:15
12:19
+3:14
Finish
26.22 mi14:04:393:34:258:118:55
8:45
-3:34

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

7:30 /mi

Average Pace

8:11 /mi

Slowest Pace

12:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:07

2% of race

Time at Steady Pace

3:03:13

85% of race

Time at Slower Pace

26:05

12% of race

Average Pace: 8:11 /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 mi10:54:0823:547:4223:54
7:42
#13933
10K
6.21 mi11:17:4847:347:3923:40
7:37
#13556
15K
9.32 mi11:41:171:11:037:3723:29
7:34
#13070
20K
12.43 mi12:04:501:34:367:3723:33
7:35
#12597
Half
13.11 mi12:09:571:39:437:365:07
7:30
#12556
25K
15.53 mi12:28:291:58:157:3718:32
7:39
#12298
30K
18.64 mi12:53:362:23:227:4125:07
8:05
#12187
20M
20.00 mi13:04:542:34:407:4411:18
8:19
#12181
21M
21.00 mi13:17:202:47:067:5712:26
12:26
#13532
35K
21.75 mi13:23:412:53:277:596:21
8:29
#13592
23M
23.00 mi13:34:193:04:058:0010:38
8:29
#13548
24M
24.00 mi13:43:433:13:298:049:24
9:24
#13901
40K
24.85 mi13:51:293:21:158:067:46
9:05
#14021
25.2M
25.20 mi13:55:443:25:308:094:15
12:19
#14293
Finish
26.22 mi14:04:393:34:258:118:55
8:45
#14396
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 mi139333865386512266(Top 43%)3053(Top 25%)3053(Top 56%)
10K6.21 mi3.10 mi13556+3773679+1863679+18613205(Top 46%)3499(Top 29%)3499(Top 64%)
15K9.32 mi3.11 mi13070+4863430+2493430+24912266(Top 43%)3053(Top 25%)3053(Top 56%)
20K12.43 mi3.11 mi12597+4733202+2283202+22811452(Top 40%)2717(Top 22%)2717(Top 50%)
Half13.11 mi0.68 mi12556+413183+193183+1911805(Top 42%)2844(Top 23%)2844(Top 52%)
25K15.53 mi2.42 mi12298+2583076+1073076+10711121(Top 39%)2654(Top 22%)2654(Top 49%)
30K18.64 mi3.11 mi12187+1113092-163092-1612002(Top 42%)3298(Top 27%)3298(Top 60%)
20M20.00 mi1.36 mi12181+63128-363128-3612617(Top 44%)3764(Top 31%)3764(Top 69%)
21M21.00 mi1.00 mi13532-13513907-7793907-77924313(Top 86%)10188(Top 83%)10188(Top 186%)
35K21.75 mi0.75 mi13592-603969-623969-6215470(Top 54%)5526(Top 45%)5526(Top 101%)
23M23.00 mi1.25 mi13548+443984-153984-1513229(Top 47%)4406(Top 36%)4406(Top 81%)
24M24.00 mi1.00 mi13901-3534203-2194203-21919234(Top 68%)7662(Top 63%)7662(Top 140%)
40K24.85 mi0.85 mi14021-1204287-844287-8416776(Top 59%)6456(Top 53%)6456(Top 118%)
25.2M25.20 mi0.35 mi14293-2724446-1594446-15923868(Top 84%)10093(Top 83%)10093(Top 185%)
Finish26.22 mi1.02 mi14396-1034535-894535-8917778(Top 63%)6961(Top 57%)6961(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

12266

Females

3053

F18-39

3053

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

13205

Females

3499

F18-39

3499

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

12266

Females

3053

F18-39

3053

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11452

Females

2717

F18-39

2717

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11805

Females

2844

F18-39

2844

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

11121

Females

2654

F18-39

2654

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

12002

Females

3298

F18-39

3298

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12617

Females

3764

F18-39

3764

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24313

Females

10188

F18-39

10188

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15470

Females

5526

F18-39

5526

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13229

Females

4406

F18-39

4406

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19234

Females

7662

F18-39

7662

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16776

Females

6456

F18-39

6456

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23868

Females

10093

F18-39

10093

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17778

Females

6961

F18-39

6961

Passing Analysis

Category:
Athletes Passed
2586
Passed By
3049
Net Change
-463
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13933
5K → 10K513136+377#13933#13556
10K → 15K52438+486#13556#13070
15K → 20K50027+473#13070#12597
20K → Half5514+41#12597#12556
Half → 25K29638+258#12556#12298
25K → 30K288177+111#12298#12187
30K → 20M122116+6#12187#12181
20M → 21M31354-1351#12181#13532
21M → 35K3494-60#13532#13592
35K → 23M13389+44#13592#13548
23M → 24M29382-353#13548#13901
24M → 40K50170-120#13901#14021
40K → 25.2M1273-272#14021#14293
25.2M → Finish38141-103#14293#14396
TOTALS25863049-463
📊

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