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BOSTON MARATHON 2025

Sarah Lapp

Bib: 17119•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
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
23:28
Rank: #12707
Start → 5K
7:33/mi
23:28 split
10K· 6.21 mi
46:27
Rank: #11927 (+780)
5K → 10K
7:24/mi
22:59 split
15K· 9.32 mi
1:10:04
Rank: #12149 (-222)
10K → 15K
7:36/mi
23:37 split
20K· 12.43 mi
1:34:35
Rank: #12587 (-438)
15K → 20K
7:53/mi
24:31 split
Half· 13.11 mi
1:39:53
Rank: #12663 (-76)
20K → Half
7:46/mi
5:18 split
25K· 15.53 mi
1:59:21
Rank: #12890 (-227)
Half → 25K
8:02/mi
19:28 split
30K· 18.64 mi
2:27:17
Rank: #13890 (-1000)
25K → 30K
8:59/mi
27:56 split
20M
2:39:58
Rank: #14315 (-425)
30K → 20M
9:20/mi
12:41 split
21M
2:49:57
Rank: #14630 (-315)
20M → 21M
9:59/mi
9:59 split
35K· 21.75 mi
2:56:26
Rank: #14668 (-38)
21M → 35K
8:40/mi
6:29 split
23M
3:08:20
Rank: #14933 (-265)
35K → 23M
9:30/mi
11:54 split
24M
3:17:15
Rank: #15015 (-82)
23M → 24M
8:55/mi
8:55 split
40K· 24.85 mi
3:24:35
Rank: #14966 (+49)
24M → 40K
8:35/mi
7:20 split
25.2M
3:27:46
Rank: #14919 (+47)
40K → 25.2M
9:14/mi
3:11 split
Finish· 26.22 mi
3:35:54
Rank: #14804 (+115)
25.2M → Finish
7:59/mi
8:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:53
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:56:01
Pace8:51 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3623:287:3323:28
7:33
-
10K
6.21 mi11:37:3546:277:2922:59
7:24
-0:09
15K
9.32 mi12:01:121:10:047:3123:37
7:36
+0:12
20K
12.43 mi12:25:431:34:357:3724:31
7:53
+0:17
Half
13.11 mi12:31:011:39:537:375:18
7:46
-0:07
25K
15.53 mi12:50:291:59:217:4119:28
8:02
+0:16
30K
18.64 mi13:18:252:27:177:5427:56
8:59
+0:57
20M
20.00 mi13:31:062:39:588:0012:41
9:20
+0:21
21M
21.00 mi13:41:052:49:578:069:59
9:59
+0:39
35K
21.75 mi13:47:342:56:268:076:29
8:40
-1:19
23M
23.00 mi13:59:283:08:208:1111:54
9:30
+0:50
24M
24.00 mi14:08:233:17:158:138:55
8:55
-0:35
40K
24.85 mi14:15:433:24:358:147:20
8:35
-0:20
25.2M
25.20 mi14:18:543:27:468:153:11
9:14
+0:39
Finish
26.22 mi14:27:023:35:548:148:08
7:59
-1:15

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

7:24 /mi

Average Pace

8:14 /mi

Slowest Pace

9:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:29

59% of race

Time at Steady Pace

22:44

11% of race

Time at Slower Pace

1:05:41

30% of race

Average Pace: 8:14 /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 mi11:14:3623:287:3323:28
7:33
#12707
10K
6.21 mi11:37:3546:277:2922:59
7:24
#11927
15K
9.32 mi12:01:121:10:047:3123:37
7:36
#12149
20K
12.43 mi12:25:431:34:357:3724:31
7:53
#12587
Half
13.11 mi12:31:011:39:537:375:18
7:46
#12663
25K
15.53 mi12:50:291:59:217:4119:28
8:02
#12890
30K
18.64 mi13:18:252:27:177:5427:56
8:59
#13890
20M
20.00 mi13:31:062:39:588:0012:41
9:20
#14315
21M
21.00 mi13:41:052:49:578:069:59
9:59
#14630
35K
21.75 mi13:47:342:56:268:076:29
8:40
#14668
23M
23.00 mi13:59:283:08:208:1111:54
9:30
#14933
24M
24.00 mi14:08:233:17:158:138:55
8:55
#15015
40K
24.85 mi14:15:433:24:358:147:20
8:35
#14966
25.2M
25.20 mi14:18:543:27:468:153:11
9:14
#14919
Finish
26.22 mi14:27:023:35:548:148:08
7:59
#14804
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127073172317212626(Top 44%)3238(Top 26%)3238(Top 59%)
10K6.21 mi3.10 mi11927+7802772+4002772+40011180(Top 39%)2413(Top 20%)2413(Top 44%)
15K9.32 mi3.11 mi12149-2222918-1462918-14612626(Top 44%)3238(Top 26%)3238(Top 59%)
20K12.43 mi3.11 mi12587-4383196-2783196-27814025(Top 49%)4113(Top 34%)4113(Top 75%)
Half13.11 mi0.68 mi12663-763252-563252-5614089(Top 50%)4122(Top 34%)4122(Top 75%)
25K15.53 mi2.42 mi12890-2273416-1643416-16414150(Top 50%)4284(Top 35%)4284(Top 78%)
30K18.64 mi3.11 mi13890-10004043-6274043-62717648(Top 62%)6384(Top 52%)6384(Top 117%)
20M20.00 mi1.36 mi14315-4254309-2664309-26618445(Top 65%)6967(Top 57%)6967(Top 127%)
21M21.00 mi1.00 mi14630-3154515-2064515-20618242(Top 64%)6913(Top 57%)6913(Top 126%)
35K21.75 mi0.75 mi14668-384547-324547-3216485(Top 58%)6044(Top 49%)6044(Top 111%)
23M23.00 mi1.25 mi14933-2654729-1824729-18218726(Top 66%)7361(Top 60%)7361(Top 135%)
24M24.00 mi1.00 mi15015-824810-814810-8116935(Top 60%)6459(Top 53%)6459(Top 118%)
40K24.85 mi0.85 mi14966+494812-24812-213950(Top 49%)4936(Top 40%)4936(Top 90%)
25.2M25.20 mi0.35 mi14919+474799+134799+1313166(Top 46%)4585(Top 37%)4585(Top 84%)
Finish26.22 mi1.02 mi14804+1154758+414758+4112789(Top 45%)4332(Top 35%)4332(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12626

Females

3238

F18-39

3238

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

11180

Females

2413

F18-39

2413

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12626

Females

3238

F18-39

3238

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

14025

Females

4113

F18-39

4113

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14089

Females

4122

F18-39

4122

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14150

Females

4284

F18-39

4284

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17648

Females

6384

F18-39

6384

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18445

Females

6967

F18-39

6967

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18242

Females

6913

F18-39

6913

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16485

Females

6044

F18-39

6044

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18726

Females

7361

F18-39

7361

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

16935

Females

6459

F18-39

6459

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13950

Females

4936

F18-39

4936

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13166

Females

4585

F18-39

4585

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12789

Females

4332

F18-39

4332

Passing Analysis

Category:
Athletes Passed
1771
Passed By
3868
Net Change
-2097
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12707
5K → 10K83050+780#12707#11927
10K → 15K115337-222#11927#12149
15K → 20K89527-438#12149#12587
20K → Half985-76#12587#12663
Half → 25K107334-227#12663#12890
25K → 30K751075-1000#12890#13890
30K → 20M39464-425#13890#14315
20M → 21M42357-315#14315#14630
21M → 35K63101-38#14630#14668
35K → 23M54319-265#14668#14933
23M → 24M58140-82#14933#15015
24M → 40K8839+49#15015#14966
40K → 25.2M6114+47#14966#14919
25.2M → Finish14126+115#14919#14804
TOTALS17713868-2097
📊

Passing Visuals

Category:
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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