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BOSTON MARATHON 2025

Sarah Stephens

Bib: 19377•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:06
Rank: #11670
Start → 5K
23:06 | 7:26/mi
10K· 6.21 mi
45:47
Rank: #10945 (+725)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:08:38
Rank: #10753 (+192)
10K → 15K
22:51 | 7:21/mi
20K· 12.43 mi
1:31:55
Rank: #10735 (+18)
15K → 20K
23:17 | 7:30/mi
Half· 13.11 mi
1:36:52
Rank: #10666 (+69)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:54:51
Rank: #10393 (+273)
Half → 25K
17:59 | 7:25/mi
30K· 18.64 mi
2:19:19
Rank: #10347 (+46)
25K → 30K
24:28 | 7:53/mi
20M
2:30:17
Rank: #10373 (-26)
30K → 20M
10:58 | 8:04/mi
21M
2:39:05
Rank: #10494 (-121)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:44:55
Rank: #10473 (+21)
21M → 35K
5:50 | 7:48/mi
23M
2:54:50
Rank: #10356 (+117)
35K → 23M
9:55 | 7:55/mi
24M
3:02:28
Rank: #10246 (+110)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:08:54
Rank: #10081 (+165)
24M → 40K
6:26 | 7:31/mi
25.2M
3:11:51
Rank: #10056 (+25)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:19:30
Rank: #9997 (+59)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:52
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:42:38
Pace7:50 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5123:067:2623:06
7:26
-
10K
6.21 mi11:37:3245:477:2222:41
7:18
-0:08
15K
9.32 mi12:00:231:08:387:2222:51
7:21
+0:03
20K
12.43 mi12:23:401:31:557:2423:17
7:30
+0:09
Half
13.11 mi12:28:371:36:527:234:57
7:15
-0:15
25K
15.53 mi12:46:361:54:517:2417:59
7:25
+0:10
30K
18.64 mi13:11:042:19:197:2824:28
7:53
+0:28
20M
20.00 mi13:22:022:30:177:3110:58
8:04
+0:11
21M
21.00 mi13:30:502:39:057:358:48
8:48
+0:44
35K
21.75 mi13:36:402:44:557:355:50
7:48
-1:00
23M
23.00 mi13:46:352:54:507:369:55
7:55
+0:07
24M
24.00 mi13:54:133:02:287:367:38
7:38
-0:17
40K
24.85 mi14:00:393:08:547:366:26
7:31
-0:07
25.2M
25.20 mi14:03:363:11:517:372:57
8:33
+1:02
Finish
26.22 mi14:11:153:19:307:377:39
7:30
-1:03

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

7:15 /mi

Average Pace

7:37 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:57

2% of race

Time at Steady Pace

2:11:37

66% of race

Time at Slower Pace

1:02:56

32% of race

Average Pace: 7:37 /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 mi11:14:5123:067:2623:06
7:26
#11670
10K
6.21 mi11:37:3245:477:2222:41
7:18
#10945
15K
9.32 mi12:00:231:08:387:2222:51
7:21
#10753
20K
12.43 mi12:23:401:31:557:2423:17
7:30
#10735
Half
13.11 mi12:28:371:36:527:234:57
7:15
#10666
25K
15.53 mi12:46:361:54:517:2417:59
7:25
#10393
30K
18.64 mi13:11:042:19:197:2824:28
7:53
#10347
20M
20.00 mi13:22:022:30:177:3110:58
8:04
#10373
21M
21.00 mi13:30:502:39:057:358:48
8:48
#10494
35K
21.75 mi13:36:402:44:557:355:50
7:48
#10473
23M
23.00 mi13:46:352:54:507:369:55
7:55
#10356
24M
24.00 mi13:54:133:02:287:367:38
7:38
#10246
40K
24.85 mi14:00:393:08:547:366:26
7:31
#10081
25.2M
25.20 mi14:03:363:11:517:372:57
8:33
#10056
Finish
26.22 mi14:11:153:19:307:377:39
7:30
#9997
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116702616261610467(Top 37%)2102(Top 17%)2102(Top 38%)
10K6.21 mi3.10 mi10945+7252281+3352281+33510367(Top 36%)1995(Top 16%)1995(Top 36%)
15K9.32 mi3.11 mi10753+1922204+772204+7710467(Top 37%)2102(Top 17%)2102(Top 38%)
20K12.43 mi3.11 mi10735+182207-32207-310725(Top 38%)2328(Top 19%)2328(Top 43%)
Half13.11 mi0.68 mi10666+692175+322175+329690(Top 34%)1818(Top 15%)1818(Top 33%)
25K15.53 mi2.42 mi10393+2732082+932082+939310(Top 33%)1781(Top 15%)1781(Top 33%)
30K18.64 mi3.11 mi10347+462123-412123-4110460(Top 37%)2518(Top 21%)2518(Top 46%)
20M20.00 mi1.36 mi10373-262185-622185-6210902(Top 38%)2889(Top 24%)2889(Top 53%)
21M21.00 mi1.00 mi10494-1212292-1072292-10712297(Top 43%)3748(Top 31%)3748(Top 69%)
35K21.75 mi0.75 mi10473+212293-12293-110822(Top 38%)3005(Top 25%)3005(Top 55%)
23M23.00 mi1.25 mi10356+1172291+22291+29455(Top 33%)2475(Top 20%)2475(Top 45%)
24M24.00 mi1.00 mi10246+1102266+252266+258681(Top 31%)2176(Top 18%)2176(Top 40%)
40K24.85 mi0.85 mi10081+1652216+502216+506979(Top 25%)1550(Top 13%)1550(Top 28%)
25.2M25.20 mi0.35 mi10056+252223-72223-79159(Top 32%)2596(Top 21%)2596(Top 47%)
Finish26.22 mi1.02 mi9997+592220+32220+39258(Top 33%)2645(Top 22%)2645(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10467

Females

2102

F18-39

2102

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10367

Females

1995

F18-39

1995

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10467

Females

2102

F18-39

2102

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10725

Females

2328

F18-39

2328

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9690

Females

1818

F18-39

1818

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9310

Females

1781

F18-39

1781

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10460

Females

2518

F18-39

2518

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10902

Females

2889

F18-39

2889

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12297

Females

3748

F18-39

3748

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10822

Females

3005

F18-39

3005

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9455

Females

2475

F18-39

2475

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8681

Females

2176

F18-39

2176

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6979

Females

1550

F18-39

1550

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9159

Females

2596

F18-39

2596

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9258

Females

2645

F18-39

2645

Passing Analysis

Category:
Athletes Passed
2729*
Passed By
1055
Net Change
+1673
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11670
5K → 10K77954+725#11670#10945
10K → 15K26876+192#10945#10753
15K → 20K176158+18#10753#10735
20K → Half767+69#10735#10666
Half → 25K31138+273#10666#10393
25K → 30K256209+46#10393#10347
30K → 20M105131-26#10347#10373
20M → 21M73194-121#10373#10494
21M → 35K6544+21#10494#10473
35K → 23M16346+117#10473#10356
23M → 24M13828+110#10356#10246
24M → 40K1738+165#10246#10081
40K → 25.2M4722+25#10081#10056
25.2M → Finish99*40+59#10056#9997
TOTALS2729*1055+1673

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing