Boston Marathon logo
BOSTON MARATHON 2025

Stephanie Yandow

Bib: 11730•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 22%
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
7:05/mi
22:01
↑ 97↓ 3451.5%
10K· 6.21 mi
6:59/mi
43:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:05/mi
1:05:43
↑ 67↓ 78
20K· 12.43 mi
7:07/mi
1:27:50
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:32:36
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:50:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:14:35
↑ 181↓ 1480.2%
20M
7:50/mi
2:25:14
↑ 64↓ 500.2%
21M
8:29/mi
2:33:43
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:39:20
↑ 17↓ 861.7%
23M
7:58/mi
2:49:18
↑ 23↓ 630.6%
24M
7:30/mi
2:56:48
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:03:30
↓ 200.3%
25.2M
8:30/mi
3:06:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:14:09
↑ 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
Time1:32:36
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:41:33
Pace7:45 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4622:017:0522:01
7:05
-
10K
6.21 mi11:10:2943:447:0221:43
6:59
-0:06
15K
9.32 mi11:32:281:05:437:0321:59
7:05
+0:06
20K
12.43 mi11:54:351:27:507:0422:07
7:07
+0:02
Half
13.11 mi11:59:211:32:367:044:46
6:59
-0:08
25K
15.53 mi12:16:571:50:127:0617:36
7:16
+0:17
30K
18.64 mi12:41:202:14:357:1324:23
7:51
+0:35
20M
20.00 mi12:51:592:25:147:1610:39
7:50
-0:01
21M
21.00 mi13:00:282:33:437:198:29
8:29
+0:39
35K
21.75 mi13:06:052:39:207:205:37
7:30
-0:59
23M
23.00 mi13:16:032:49:187:229:58
7:58
+0:28
24M
24.00 mi13:23:332:56:487:227:30
7:30
-0:28
40K
24.85 mi13:30:153:03:307:236:42
7:50
+0:20
25.2M
25.20 mi13:33:113:06:267:242:56
8:30
+0:40
Finish
26.22 mi13:40:543:14:097:257:43
7:34
-0:56

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

7:25 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:36

48% of race

Time at Steady Pace

38:26

20% of race

Time at Slower Pace

1:03:07

33% of race

Average Pace: 7:24 /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 mi10:48:4622:017:0522:01
7:05
#8524
10K
6.21 mi11:10:2943:447:0221:43
6:59
#8161
15K
9.32 mi11:32:281:05:437:0321:59
7:05
#8124
20K
12.43 mi11:54:351:27:507:0422:07
7:07
#7947
Half
13.11 mi11:59:211:32:367:044:46
6:59
#7910
25K
15.53 mi12:16:571:50:127:0617:36
7:16
#7889
30K
18.64 mi12:41:202:14:357:1324:23
7:51
#8183
20M
20.00 mi12:51:592:25:147:1610:39
7:50
#8236
21M
21.00 mi13:00:282:33:437:198:29
8:29
#8301
35K
21.75 mi13:06:052:39:207:205:37
7:30
#8277
23M
23.00 mi13:16:032:49:187:229:58
7:58
#8314
24M
24.00 mi13:23:332:56:487:227:30
7:30
#8236
40K
24.85 mi13:30:153:03:307:236:42
7:50
#8228
25.2M
25.20 mi13:33:113:06:267:242:56
8:30
#8234
Finish
26.22 mi13:40:543:14:097:257:43
7:34
#8274
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8524117311738186(Top 29%)1112(Top 9%)1112(Top 20%)
10K6.21 mi3.10 mi8161+3631053+1201053+1207873(Top 28%)965(Top 8%)965(Top 18%)
15K9.32 mi3.11 mi8124+371054-11054-18186(Top 29%)1112(Top 9%)1112(Top 20%)
20K12.43 mi3.11 mi7947+1771006+481006+487647(Top 27%)988(Top 8%)988(Top 18%)
Half13.11 mi0.68 mi7910+37997+9997+97578(Top 27%)947(Top 8%)947(Top 17%)
25K15.53 mi2.42 mi7889+211005-81005-88076(Top 28%)1245(Top 10%)1245(Top 23%)
30K18.64 mi3.11 mi8183-2941183-1781183-17810279(Top 36%)2421(Top 20%)2421(Top 44%)
20M20.00 mi1.36 mi8236-531227-441227-449289(Top 33%)2107(Top 17%)2107(Top 39%)
21M21.00 mi1.00 mi8301-651284-571284-5710346(Top 36%)2776(Top 23%)2776(Top 51%)
35K21.75 mi0.75 mi8277+241298-141298-148703(Top 31%)1982(Top 16%)1982(Top 36%)
23M23.00 mi1.25 mi8314-371358-601358-609754(Top 34%)2610(Top 21%)2610(Top 48%)
24M24.00 mi1.00 mi8236+781365-71365-77712(Top 27%)1745(Top 14%)1745(Top 32%)
40K24.85 mi0.85 mi8228+81391-261391-269038(Top 32%)2459(Top 20%)2459(Top 45%)
25.2M25.20 mi0.35 mi8234-61410-191410-198850(Top 31%)2434(Top 20%)2434(Top 45%)
Finish26.22 mi1.02 mi8274-401462-521462-529751(Top 34%)2869(Top 23%)2869(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

8186

Females

1112

F18-39

1112

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7873

Females

965

F18-39

965

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

8186

Females

1112

F18-39

1112

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7647

Females

988

F18-39

988

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7578

Females

947

F18-39

947

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8076

Females

1245

F18-39

1245

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10279

Females

2421

F18-39

2421

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9289

Females

2107

F18-39

2107

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10346

Females

2776

F18-39

2776

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8703

Females

1982

F18-39

1982

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9754

Females

2610

F18-39

2610

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7712

Females

1745

F18-39

1745

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9038

Females

2459

F18-39

2459

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8850

Females

2434

F18-39

2434

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9751

Females

2869

F18-39

2869

Passing Analysis

Category:
Athletes Passed
1724
Passed By
1474
Net Change
+250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8524
5K → 10K44481+363#8524#8161
10K → 15K162125+37#8161#8124
15K → 20K23255+177#8124#7947
20K → Half447+37#7947#7910
Half → 25K128107+21#7910#7889
25K → 30K108402-294#7889#8183
30K → 20M92145-53#8183#8236
20M → 21M71136-65#8236#8301
21M → 35K7046+24#8301#8277
35K → 23M102139-37#8277#8314
23M → 24M11537+78#8314#8236
24M → 40K6961+8#8236#8228
40K → 25.2M3238-6#8228#8234
25.2M → Finish5595-40#8234#8274
TOTALS17241474+250
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing