Boston Marathon logo
BOSTON MARATHON 2025

Sarah Stein

Bib: 16372•F

WA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Division (F18-39)
#0 / 5469
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
46:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:08
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:33:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:38:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:57:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:21:22
↑ 181↓ 1480.2%
20M
7:53/mi
2:32:05
↑ 64↓ 500.2%
21M
8:15/mi
2:40:20
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:46:03
↑ 17↓ 861.7%
23M
7:57/mi
2:56:00
↑ 23↓ 630.6%
24M
7:43/mi
3:03:43
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:10:18
↓ 200.3%
25.2M
8:04/mi
3:13:05
↑ 13↓ 160.2%
Finish· 26.22 mi
6:59/mi
3:20:12
↑ 22↓ 21

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
Time1:38:43
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:41:29
Pace7:44 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2723:047:2523:04
7:25
-
10K
6.21 mi11:20:0546:427:3123:38
7:36
+0:11
15K
9.32 mi11:43:311:10:087:3123:26
7:33
-0:03
20K
12.43 mi12:07:021:33:397:3223:31
7:34
+0:01
Half
13.11 mi12:12:061:38:437:325:04
7:26
-0:08
25K
15.53 mi12:30:351:57:127:3318:29
7:37
+0:11
30K
18.64 mi12:54:452:21:227:3524:10
7:47
+0:10
20M
20.00 mi13:05:282:32:057:3610:43
7:53
+0:06
21M
21.00 mi13:13:432:40:207:388:15
8:15
+0:22
35K
21.75 mi13:19:262:46:037:385:43
7:38
-0:37
23M
23.00 mi13:29:232:56:007:399:57
7:57
+0:19
24M
24.00 mi13:37:063:03:437:397:43
7:43
-0:14
40K
24.85 mi13:43:413:10:187:396:35
7:42
-0:01
25.2M
25.20 mi13:46:283:13:057:402:47
8:04
+0:22
Finish
26.22 mi13:53:353:20:127:387:07
6:59
-1:05

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

6:59 /mi

Average Pace

7:38 /mi

Slowest Pace

8:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:02

65% of race

Time at Steady Pace

1:01:55

31% of race

Time at Slower Pace

8:15

4% of race

Average Pace: 7:38 /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 mi10:56:2723:047:2523:04
7:25
#11581
10K
6.21 mi11:20:0546:427:3123:38
7:36
#12274
15K
9.32 mi11:43:311:10:087:3123:26
7:33
#12207
20K
12.43 mi12:07:021:33:397:3223:31
7:34
#11960
Half
13.11 mi12:12:061:38:437:325:04
7:26
#11896
25K
15.53 mi12:30:351:57:127:3318:29
7:37
#11713
30K
18.64 mi12:54:452:21:227:3524:10
7:47
#11309
20M
20.00 mi13:05:282:32:057:3610:43
7:53
#11123
21M
21.00 mi13:13:432:40:207:388:15
8:15
#10949
35K
21.75 mi13:19:262:46:037:385:43
7:38
#10877
23M
23.00 mi13:29:232:56:007:399:57
7:57
#10753
24M
24.00 mi13:37:063:03:437:397:43
7:43
#10660
40K
24.85 mi13:43:413:10:187:396:35
7:42
#10537
25.2M
25.20 mi13:46:283:13:057:402:47
8:04
#10443
Finish
26.22 mi13:53:353:20:127:387:07
6:59
#10210
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115812564256412136(Top 43%)2978(Top 24%)2978(Top 54%)
10K6.21 mi3.10 mi12274-6932947-3832947-38313085(Top 46%)3415(Top 28%)3415(Top 62%)
15K9.32 mi3.11 mi12207+672952-52952-512136(Top 43%)2978(Top 24%)2978(Top 54%)
20K12.43 mi3.11 mi11960+2472850+1022850+10211353(Top 40%)2657(Top 22%)2657(Top 49%)
Half13.11 mi0.68 mi11896+642824+262824+2611155(Top 39%)2496(Top 20%)2496(Top 46%)
25K15.53 mi2.42 mi11713+1832760+642760+6410955(Top 39%)2560(Top 21%)2560(Top 47%)
30K18.64 mi3.11 mi11309+4042631+1292631+1299781(Top 34%)2183(Top 18%)2183(Top 40%)
20M20.00 mi1.36 mi11123+1862565+662565+669642(Top 34%)2276(Top 19%)2276(Top 42%)
21M21.00 mi1.00 mi10949+1742520+452520+458934(Top 31%)2139(Top 17%)2139(Top 39%)
35K21.75 mi0.75 mi10877+722511+92511+99669(Top 34%)2444(Top 20%)2444(Top 45%)
23M23.00 mi1.25 mi10753+1242489+222489+229648(Top 34%)2567(Top 21%)2567(Top 47%)
24M24.00 mi1.00 mi10660+932479+102479+109242(Top 33%)2440(Top 20%)2440(Top 45%)
40K24.85 mi0.85 mi10537+1232432+472432+478122(Top 29%)2049(Top 17%)2049(Top 37%)
25.2M25.20 mi0.35 mi10443+942405+272405+276430(Top 23%)1433(Top 12%)1433(Top 26%)
Finish26.22 mi1.02 mi10210+2332329+762329+765669(Top 20%)1135(Top 9%)1135(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12136

Females

2978

F18-39

2978

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13085

Females

3415

F18-39

3415

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12136

Females

2978

F18-39

2978

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11353

Females

2657

F18-39

2657

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11155

Females

2496

F18-39

2496

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10955

Females

2560

F18-39

2560

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9781

Females

2183

F18-39

2183

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9642

Females

2276

F18-39

2276

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8934

Females

2139

F18-39

2139

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9669

Females

2444

F18-39

2444

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9648

Females

2567

F18-39

2567

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9242

Females

2440

F18-39

2440

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8122

Females

2049

F18-39

2049

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6430

Females

1433

F18-39

1433

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5669

Females

1135

F18-39

1135

Passing Analysis

Category:
Athletes Passed
2647
Passed By
1276
Net Change
+1371
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11581
5K → 10K65758-693#11581#12274
10K → 15K217150+67#12274#12207
15K → 20K31669+247#12207#11960
20K → Half7915+64#11960#11896
Half → 25K24158+183#11896#11713
25K → 30K46157+404#11713#11309
30K → 20M21428+186#11309#11123
20M → 21M19824+174#11123#10949
21M → 35K9220+72#10949#10877
35K → 23M16642+124#10877#10753
23M → 24M12229+93#10753#10660
24M → 40K13916+123#10660#10537
40K → 25.2M984+94#10537#10443
25.2M → Finish2396+233#10443#10210
TOTALS26471276+1371
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing