Boston Marathon logo
BOSTON MARATHON 2025

Sarah Reiter

Bib: 142•F

OR

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 1%
Gender (Female)
#0 / 12228
Top 0.2%
Division (F18-39)
#0 / 5469
Top 0.4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:08
Rank: #691
Start → 5K
18:08 | 5:50/mi
10K· 6.21 mi
36:21
Rank: #698 (-7)
5K → 10K
18:13 | 5:52/mi
15K· 9.32 mi
54:30
Rank: #656 (+42)
10K → 15K
18:09 | 5:51/mi
20K· 12.43 mi
1:12:37
Rank: #601 (+55)
15K → 20K
18:07 | 5:50/mi
Half· 13.11 mi
1:16:34
Rank: #599 (+2)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:30:38
Rank: #555 (+44)
Half → 25K
14:04 | 5:48/mi
30K· 18.64 mi
1:48:44
Rank: #483 (+72)
25K → 30K
18:06 | 5:50/mi
20M
1:56:47
Rank: #465 (+18)
30K → 20M
8:03 | 5:55/mi
21M
2:03:03
Rank: #440 (+25)
20M → 21M
6:16 | 6:16/mi
35K· 21.75 mi
2:07:14
Rank: #425 (+15)
21M → 35K
4:11 | 5:36/mi
23M
2:14:40
Rank: #406 (+19)
35K → 23M
7:26 | 5:56/mi
24M
2:20:26
Rank: #384 (+22)
23M → 24M
5:46 | 5:46/mi
40K· 24.85 mi
2:25:28
Rank: #370 (+14)
24M → 40K
5:02 | 5:53/mi
25.2M
2:27:41
Rank: #363 (+7)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:33:33
Rank: #342 (+21)
25.2M → Finish
5:52 | 5:45/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 Half⚖️ Balanced
Distance13.11 mi
Time1:16:34
Pace5:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:16:59
Pace5:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:05:1018:085:5018:08
5:50
-
10K
6.21 mi10:23:2336:215:5118:13
5:52
+0:02
15K
9.32 mi10:41:3254:305:5118:09
5:51
-0:01
20K
12.43 mi10:59:391:12:375:5118:07
5:50
-0:01
Half
13.11 mi11:03:361:16:345:503:57
5:47
-0:03
25K
15.53 mi11:17:401:30:385:5014:04
5:48
+0:01
30K
18.64 mi11:35:461:48:445:5018:06
5:50
+0:02
20M
20.00 mi11:43:491:56:475:508:03
5:55
+0:05
21M
21.00 mi11:50:052:03:035:526:16
6:16
+0:21
35K
21.75 mi11:54:162:07:145:514:11
5:36
-0:40
23M
23.00 mi12:01:422:14:405:517:26
5:56
+0:20
24M
24.00 mi12:07:282:20:265:515:46
5:46
-0:10
40K
24.85 mi12:12:302:25:285:515:02
5:53
+0:07
25.2M
25.20 mi12:14:432:27:415:522:13
6:26
+0:33
Finish
26.22 mi12:20:352:33:335:525:52
5:45
-0:41

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

5:36 /mi

Average Pace

5:52 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:04

94% of race

Time at Steady Pace

8:29

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:51 /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
#691
10K
6.21 mi10:23:2336:215:5118:13
5:52
#698
15K
9.32 mi10:41:3254:305:5118:09
5:51
#656
20K
12.43 mi10:59:391:12:375:5118:07
5:50
#601
Half
13.11 mi11:03:361:16:345:503:57
5:47
#599
25K
15.53 mi11:17:401:30:385:5014:04
5:48
#555
30K
18.64 mi11:35:461:48:445:5018:06
5:50
#483
20M
20.00 mi11:43:491:56:475:508:03
5:55
#465
21M
21.00 mi11:50:052:03:035:526:16
6:16
#440
35K
21.75 mi11:54:162:07:145:514:11
5:36
#425
23M
23.00 mi12:01:422:14:405:517:26
5:56
#406
24M
24.00 mi12:07:282:20:265:515:46
5:46
#384
40K
24.85 mi12:12:302:25:285:515:02
5:53
#370
25.2M
25.20 mi12:14:432:27:415:522:13
6:26
#363
Finish
26.22 mi12:20:352:33:335:525:52
5:45
#342
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi6914444621(Top 2%)40(Top 0.3%)40(Top 0.7%)
10K6.21 mi3.10 mi698-743+143+1750(Top 3%)42(Top 0.3%)42(Top 0.8%)
15K9.32 mi3.11 mi656+4242+142+1621(Top 2%)40(Top 0.3%)40(Top 0.7%)
20K12.43 mi3.11 mi601+5541+141+1484(Top 2%)29(Top 0.2%)29(Top 0.5%)
Half13.11 mi0.68 mi599+24141584(Top 2%)31(Top 0.3%)31(Top 0.6%)
25K15.53 mi2.42 mi555+4439+239+2419(Top 1%)27(Top 0.2%)27(Top 0.5%)
30K18.64 mi3.11 mi483+7233+633+6273(Top 1.0%)20(Top 0.2%)20(Top 0.4%)
20M20.00 mi1.36 mi465+1832+132+1303(Top 1%)21(Top 0.2%)21(Top 0.4%)
21M21.00 mi1.00 mi440+2531+131+1341(Top 1%)20(Top 0.2%)20(Top 0.4%)
35K21.75 mi0.75 mi425+153131179(Top 0.6%)14(Top 0.1%)14(Top 0.3%)
23M23.00 mi1.25 mi406+1927+427+4281(Top 1.0%)17(Top 0.1%)17(Top 0.3%)
24M24.00 mi1.00 mi384+2226+126+1256(Top 0.9%)19(Top 0.2%)19(Top 0.3%)
40K24.85 mi0.85 mi370+1425+125+1276(Top 1.0%)20(Top 0.2%)20(Top 0.4%)
25.2M25.20 mi0.35 mi363+724+124+1380(Top 1%)22(Top 0.2%)22(Top 0.4%)
Finish26.22 mi1.02 mi342+212424453(Top 2%)24(Top 0.2%)24(Top 0.4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

621

Females

40

F18-39

40

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

750

Females

42

F18-39

42

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

621

Females

40

F18-39

40

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

484

Females

29

F18-39

29

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

584

Females

31

F18-39

31

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

419

Females

27

F18-39

27

25K→30K

15.5 - 18.6 mi

Top 1.0%
×9stories
+181ft-148ft

Overall

273

Females

20

F18-39

20

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

303

Females

21

F18-39

21

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

341

Females

20

F18-39

20

21M→35K

21.0 - 21.8 mi

Top 0.6%
×7stories
+17ft-86ft

Overall

179

Females

14

F18-39

14

35K→23M

21.8 - 23.0 mi

Top 1.0%
×5stories
+23ft-63ft

Overall

281

Females

17

F18-39

17

23M→24M

23.0 - 24.0 mi

Top 0.9%
×6stories
+12ft-82ft

Overall

256

Females

19

F18-39

19

24M→40K

24.0 - 24.9 mi

Top 1.0%
×1story
+6ft-20ft

Overall

276

Females

20

F18-39

20

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

380

Females

22

F18-39

22

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

453

Females

24

F18-39

24

Passing Analysis

Category:
Athletes Passed
412
Passed By
63
Net Change
+349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#691
5K → 10K3239-7#691#698
10K → 15K464+42#698#656
15K → 20K594+55#656#601
20K → Half53+2#601#599
Half → 25K462+44#599#555
25K → 30K742+72#555#483
30K → 20M191+18#483#465
20M → 21M261+25#465#440
21M → 35K150+15#440#425
35K → 23M212+19#425#406
23M → 24M220+22#406#384
24M → 40K151+14#384#370
40K → 25.2M70+7#370#363
25.2M → Finish254+21#363#342
TOTALS41263+349
📊

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