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BOSTON MARATHON 2025

Sarah Mckelvain

Bib: 19170•F

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Masters (Masters Women)
#0 / 6759
Top 14%
Division (F40-44)
#0 / 1718
Top 29%
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
7:45/mi
24:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
47:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:11:35
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:36:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:41:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:54/mi
2:00:26
↑ 66↓ 880.2%
30K· 18.64 mi
8:11/mi
2:25:52
↑ 181↓ 1480.2%
20M
8:15/mi
2:37:04
↑ 64↓ 500.2%
21M
8:50/mi
2:45:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:51:56
↑ 17↓ 861.7%
23M
8:16/mi
3:02:17
↑ 23↓ 630.6%
24M
7:54/mi
3:10:11
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:17:02
↓ 200.3%
25.2M
8:48/mi
3:20:04
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:27:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:17
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:46:42
Pace8:08 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5724:047:4524:04
7:45
-
10K
6.21 mi11:38:3447:417:4023:37
7:36
-0:09
15K
9.32 mi12:02:281:11:357:4123:54
7:42
+0:06
20K
12.43 mi12:26:531:36:007:4324:25
7:52
+0:10
Half
13.11 mi12:32:101:41:177:445:17
7:45
-0:07
25K
15.53 mi12:51:192:00:267:4519:09
7:54
+0:09
30K
18.64 mi13:16:452:25:527:4925:26
8:11
+0:17
20M
20.00 mi13:27:572:37:047:5111:12
8:15
+0:04
21M
21.00 mi13:36:472:45:547:548:50
8:50
+0:35
35K
21.75 mi13:42:492:51:567:546:02
8:04
-0:46
23M
23.00 mi13:53:103:02:177:5610:21
8:16
+0:12
24M
24.00 mi14:01:043:10:117:557:54
7:54
-0:22
40K
24.85 mi14:07:553:17:027:566:51
8:01
+0:07
25.2M
25.20 mi14:10:573:20:047:563:02
8:48
+0:47
Finish
26.22 mi14:18:523:27:597:567:55
7:46
-1:02

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

7:36 /mi

Average Pace

7:56 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:07

94% of race

Time at Steady Pace

11:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi11:14:5724:047:4524:04
7:45
#14357
10K
6.21 mi11:38:3447:417:4023:37
7:36
#13707
15K
9.32 mi12:02:281:11:357:4123:54
7:42
#13579
20K
12.43 mi12:26:531:36:007:4324:25
7:52
#13582
Half
13.11 mi12:32:101:41:177:445:17
7:45
#13586
25K
15.53 mi12:51:192:00:267:4519:09
7:54
#13462
30K
18.64 mi13:16:452:25:527:4925:26
8:11
#13302
20M
20.00 mi13:27:572:37:047:5111:12
8:15
#13157
21M
21.00 mi13:36:472:45:547:548:50
8:50
#13094
35K
21.75 mi13:42:492:51:567:546:02
8:04
#13070
23M
23.00 mi13:53:103:02:177:5610:21
8:16
#12968
24M
24.00 mi14:01:043:10:117:557:54
7:54
#12835
40K
24.85 mi14:07:553:17:027:566:51
8:01
#12710
25.2M
25.20 mi14:10:573:20:047:563:02
8:48
#12665
Finish
26.22 mi14:18:523:27:597:567:55
7:46
#12585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi143574132413213440(Top 47%)3702(Top 30%)3702(Top 215%)
10K6.21 mi3.10 mi13707+6503768+3643768+36413054(Top 46%)3400(Top 28%)3400(Top 198%)
15K9.32 mi3.11 mi13579+1283734+343734+3413440(Top 47%)3702(Top 30%)3702(Top 215%)
20K12.43 mi3.11 mi13582-33778-443778-4413762(Top 48%)3961(Top 32%)3961(Top 231%)
Half13.11 mi0.68 mi13586-43783-53783-513815(Top 49%)3954(Top 32%)3954(Top 230%)
25K15.53 mi2.42 mi13462+1243748+353748+3513089(Top 46%)3718(Top 30%)3718(Top 216%)
30K18.64 mi3.11 mi13302+1603717+313717+3112732(Top 45%)3680(Top 30%)3680(Top 214%)
20M20.00 mi1.36 mi13157+1453665+523665+5212096(Top 43%)3500(Top 29%)3500(Top 204%)
21M21.00 mi1.00 mi13094+633658+73658+712532(Top 44%)3879(Top 32%)3879(Top 226%)
35K21.75 mi0.75 mi13070+243663-53663-512713(Top 45%)3996(Top 33%)3996(Top 233%)
23M23.00 mi1.25 mi12968+1023647+163647+1611845(Top 42%)3656(Top 30%)3656(Top 213%)
24M24.00 mi1.00 mi12835+1333608+393608+3910580(Top 37%)3091(Top 25%)3091(Top 180%)
40K24.85 mi0.85 mi12710+1253568+403568+4010339(Top 36%)3103(Top 25%)3103(Top 181%)
25.2M25.20 mi0.35 mi12665+453554+143554+1410684(Top 38%)3340(Top 27%)3340(Top 194%)
Finish26.22 mi1.02 mi12585+803541+133541+1311242(Top 40%)3578(Top 29%)3578(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13440

Females

3702

F40-44

3702

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13054

Females

3400

F40-44

3400

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13440

Females

3702

F40-44

3702

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13762

Females

3961

F40-44

3961

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13815

Females

3954

F40-44

3954

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13089

Females

3718

F40-44

3718

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12732

Females

3680

F40-44

3680

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12096

Females

3500

F40-44

3500

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12532

Females

3879

F40-44

3879

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12713

Females

3996

F40-44

3996

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11845

Females

3656

F40-44

3656

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10580

Females

3091

F40-44

3091

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10339

Females

3103

F40-44

3103

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10684

Females

3340

F40-44

3340

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11242

Females

3578

F40-44

3578

Passing Analysis

Category:
Athletes Passed
2759
Passed By
987
Net Change
+1772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14357
5K → 10K71767+650#14357#13707
10K → 15K270142+128#13707#13579
15K → 20K190193-3#13579#13582
20K → Half3135-4#13582#13586
Half → 25K21692+124#13586#13462
25K → 30K326166+160#13462#13302
30K → 20M18742+145#13302#13157
20M → 21M13370+63#13157#13094
21M → 35K6137+24#13094#13070
35K → 23M15856+102#13070#12968
23M → 24M15724+133#12968#12835
24M → 40K14217+125#12835#12710
40K → 25.2M5712+45#12710#12665
25.2M → Finish11434+80#12665#12585
TOTALS2759987+1772
📊

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