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BOSTON MARATHON 2025

Erin Shedd

Bib: 19347•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 28%
Masters (Masters Women)
#0 / 6759
Top 13%
Division (F40-44)
#0 / 1718
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:52
Rank: #16621
Start → 5K
24:52 | 8:00/mi
10K· 6.21 mi
49:30
Rank: #16228 (+393)
5K → 10K
24:38 | 7:56/mi
15K· 9.32 mi
1:13:50
Rank: #15685 (+543)
10K → 15K
24:20 | 7:50/mi
20K· 12.43 mi
1:38:00
Rank: #14960 (+725)
15K → 20K
24:10 | 7:47/mi
Half· 13.11 mi
1:43:15
Rank: #14893 (+67)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:02:06
Rank: #14387 (+506)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:27:18
Rank: #13897 (+490)
25K → 30K
25:12 | 8:07/mi
20M
2:38:15
Rank: #13625 (+272)
30K → 20M
10:57 | 8:03/mi
21M
2:46:39
Rank: #13363 (+262)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:52:32
Rank: #13268 (+95)
21M → 35K
5:53 | 7:52/mi
23M
3:02:21
Rank: #12987 (+281)
35K → 23M
9:49 | 7:50/mi
24M
3:10:04
Rank: #12798 (+189)
23M → 24M
7:43 | 7:43/mi
40K· 24.85 mi
3:16:42
Rank: #12612 (+186)
24M → 40K
6:38 | 7:45/mi
25.2M
3:19:39
Rank: #12522 (+90)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:27:04
Rank: #12296 (+226)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:43:15
Pace7:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:43:49
Pace7:55 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3924:528:0024:52
8:00
-
10K
6.21 mi11:41:1749:307:5824:38
7:56
-0:04
15K
9.32 mi12:05:371:13:507:5524:20
7:50
-0:06
20K
12.43 mi12:29:471:38:007:5324:10
7:47
-0:03
Half
13.11 mi12:35:021:43:157:535:15
7:42
-0:05
25K
15.53 mi12:53:532:02:067:5218:51
7:46
+0:04
30K
18.64 mi13:19:052:27:187:5425:12
8:07
+0:21
20M
20.00 mi13:30:022:38:157:5510:57
8:03
-0:04
21M
21.00 mi13:38:262:46:397:568:24
8:24
+0:21
35K
21.75 mi13:44:192:52:327:565:53
7:52
-0:32
23M
23.00 mi13:54:083:02:217:569:49
7:50
-0:02
24M
24.00 mi14:01:513:10:047:557:43
7:43
-0:07
40K
24.85 mi14:08:293:16:427:556:38
7:45
+0:02
25.2M
25.20 mi14:11:263:19:397:552:57
8:33
+0:48
Finish
26.22 mi14:18:513:27:047:547:25
7:17
-1:16

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

7:17 /mi

Average Pace

7:54 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:34

77% of race

Time at Steady Pace

47:30

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi11:16:3924:528:0024:52
8:00
#16621
10K
6.21 mi11:41:1749:307:5824:38
7:56
#16228
15K
9.32 mi12:05:371:13:507:5524:20
7:50
#15685
20K
12.43 mi12:29:471:38:007:5324:10
7:47
#14960
Half
13.11 mi12:35:021:43:157:535:15
7:42
#14893
25K
15.53 mi12:53:532:02:067:5218:51
7:46
#14387
30K
18.64 mi13:19:052:27:187:5425:12
8:07
#13897
20M
20.00 mi13:30:022:38:157:5510:57
8:03
#13625
21M
21.00 mi13:38:262:46:397:568:24
8:24
#13363
35K
21.75 mi13:44:192:52:327:565:53
7:52
#13268
23M
23.00 mi13:54:083:02:217:569:49
7:50
#12987
24M
24.00 mi14:01:513:10:047:557:43
7:43
#12798
40K
24.85 mi14:08:293:16:427:556:38
7:45
#12612
25.2M
25.20 mi14:11:263:19:397:552:57
8:33
#12522
Finish
26.22 mi14:18:513:27:047:547:25
7:17
#12296
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi166215524552414654(Top 52%)4385(Top 36%)4385(Top 255%)
10K6.21 mi3.10 mi16228+3935281+2435281+24315902(Top 56%)5065(Top 41%)5065(Top 295%)
15K9.32 mi3.11 mi15685+5434942+3394942+33914654(Top 52%)4385(Top 36%)4385(Top 255%)
20K12.43 mi3.11 mi14960+7254561+3814561+38113095(Top 46%)3599(Top 29%)3599(Top 209%)
Half13.11 mi0.68 mi14893+674532+294532+2913393(Top 47%)3704(Top 30%)3704(Top 216%)
25K15.53 mi2.42 mi14387+5064266+2664266+26612159(Top 43%)3201(Top 26%)3201(Top 186%)
30K18.64 mi3.11 mi13897+4904047+2194047+21912185(Top 43%)3380(Top 28%)3380(Top 197%)
20M20.00 mi1.36 mi13625+2723921+1263921+12610853(Top 38%)2869(Top 23%)2869(Top 167%)
21M21.00 mi1.00 mi13363+2623811+1103811+1109885(Top 35%)2569(Top 21%)2569(Top 150%)
35K21.75 mi0.75 mi13268+953776+353776+3511342(Top 40%)3294(Top 27%)3294(Top 192%)
23M23.00 mi1.25 mi12987+2813659+1173659+1178911(Top 31%)2221(Top 18%)2221(Top 129%)
24M24.00 mi1.00 mi12798+1893587+723587+729268(Top 33%)2466(Top 20%)2466(Top 144%)
40K24.85 mi0.85 mi12612+1863510+773510+778539(Top 30%)2254(Top 18%)2254(Top 131%)
25.2M25.20 mi0.35 mi12522+903484+263484+269221(Top 32%)2658(Top 22%)2658(Top 155%)
Finish26.22 mi1.02 mi12296+2263407+773407+777666(Top 27%)1938(Top 16%)1938(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14654

Females

4385

F40-44

4385

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15902

Females

5065

F40-44

5065

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14654

Females

4385

F40-44

4385

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

13095

Females

3599

F40-44

3599

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

13393

Females

3704

F40-44

3704

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

12159

Females

3201

F40-44

3201

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

12185

Females

3380

F40-44

3380

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10853

Females

2869

F40-44

2869

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9885

Females

2569

F40-44

2569

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11342

Females

3294

F40-44

3294

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8911

Females

2221

F40-44

2221

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9268

Females

2466

F40-44

2466

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8539

Females

2254

F40-44

2254

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9221

Females

2658

F40-44

2658

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7666

Females

1938

F40-44

1938

Passing Analysis

Category:
Athletes Passed
4608
Passed By
283
Net Change
+4325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16621
5K → 10K520127+393#16621#16228
10K → 15K57835+543#16228#15685
15K → 20K7316+725#15685#14960
20K → Half747+67#14960#14893
Half → 25K5082+506#14893#14387
25K → 30K52939+490#14387#13897
30K → 20M2819+272#13897#13625
20M → 21M2697+262#13625#13363
21M → 35K11015+95#13363#13268
35K → 23M29211+281#13268#12987
23M → 24M1989+189#12987#12798
24M → 40K1948+186#12798#12612
40K → 25.2M922+90#12612#12522
25.2M → Finish2326+226#12522#12296
TOTALS4608283+4325
📊

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