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BOSTON MARATHON 2025

Emily Chappelear

Bib: 8446•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 14%
Masters (Masters Women)
#0 / 6759
Top 5%
Division (F45-49)
#0 / 1813
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:03
Rank: #11525
Start → 5K
23:03 | 7:25/mi
10K· 6.21 mi
46:06
Rank: #11407 (+118)
5K → 10K
23:03 | 7:25/mi
15K· 9.32 mi
1:09:23
Rank: #11484 (-77)
10K → 15K
23:17 | 7:30/mi
20K· 12.43 mi
1:32:36
Rank: #11243 (+241)
15K → 20K
23:13 | 7:28/mi
Half· 13.11 mi
1:37:33
Rank: #11155 (+88)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:55:41
Rank: #10871 (+284)
Half → 25K
18:08 | 7:29/mi
30K· 18.64 mi
2:19:18
Rank: #10335 (+536)
25K → 30K
23:37 | 7:36/mi
20M
2:29:36
Rank: #10057 (+278)
30K → 20M
10:18 | 7:35/mi
21M
2:37:29
Rank: #9793 (+264)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:42:56
Rank: #9676 (+117)
21M → 35K
5:27 | 7:17/mi
23M
2:52:20
Rank: #9435 (+241)
35K → 23M
9:24 | 7:30/mi
24M
2:59:44
Rank: #9300 (+135)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
3:06:05
Rank: #9134 (+166)
24M → 40K
6:21 | 7:26/mi
25.2M
3:08:54
Rank: #9066 (+68)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:16:24
Rank: #8993 (+73)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:33
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:38:51
Pace7:32 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:4923:037:2523:03
7:25
-
10K
6.21 mi10:53:5246:067:2523:03
7:25
0:00
15K
9.32 mi11:17:091:09:237:2723:17
7:30
+0:05
20K
12.43 mi11:40:221:32:367:2723:13
7:28
-0:02
Half
13.11 mi11:45:191:37:337:264:57
7:15
-0:13
25K
15.53 mi12:03:271:55:417:2718:08
7:29
+0:14
30K
18.64 mi12:27:042:19:187:2823:37
7:36
+0:07
20M
20.00 mi12:37:222:29:367:2910:18
7:35
-0:01
21M
21.00 mi12:45:152:37:297:307:53
7:53
+0:18
35K
21.75 mi12:50:422:42:567:305:27
7:17
-0:36
23M
23.00 mi13:00:062:52:207:309:24
7:30
+0:13
24M
24.00 mi13:07:302:59:447:297:24
7:24
-0:06
40K
24.85 mi13:13:513:06:057:296:21
7:26
+0:02
25.2M
25.20 mi13:16:403:08:547:302:49
8:10
+0:44
Finish
26.22 mi13:24:103:16:247:307:30
7:22
-0:48

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

7:30 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:35

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:29 /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 mi10:30:4923:037:2523:03
7:25
#11525
10K
6.21 mi10:53:5246:067:2523:03
7:25
#11407
15K
9.32 mi11:17:091:09:237:2723:17
7:30
#11484
20K
12.43 mi11:40:221:32:367:2723:13
7:28
#11243
Half
13.11 mi11:45:191:37:337:264:57
7:15
#11155
25K
15.53 mi12:03:271:55:417:2718:08
7:29
#10871
30K
18.64 mi12:27:042:19:187:2823:37
7:36
#10335
20M
20.00 mi12:37:222:29:367:2910:18
7:35
#10057
21M
21.00 mi12:45:152:37:297:307:53
7:53
#9793
35K
21.75 mi12:50:422:42:567:305:27
7:17
#9676
23M
23.00 mi13:00:062:52:207:309:24
7:30
#9435
24M
24.00 mi13:07:302:59:447:297:24
7:24
#9300
40K
24.85 mi13:13:513:06:057:296:21
7:26
#9134
25.2M
25.20 mi13:16:403:08:547:302:49
8:10
#9066
Finish
26.22 mi13:24:103:16:247:307:30
7:22
#8993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi115252535253511723(Top 41%)2744(Top 22%)2744(Top 151%)
10K6.21 mi3.10 mi11407+1182500+352500+3511361(Top 40%)2492(Top 20%)2492(Top 137%)
15K9.32 mi3.11 mi11484-772574-742574-7411723(Top 41%)2744(Top 22%)2744(Top 151%)
20K12.43 mi3.11 mi11243+2412476+982476+9810529(Top 37%)2224(Top 18%)2224(Top 123%)
Half13.11 mi0.68 mi11155+882430+462430+469666(Top 34%)1794(Top 15%)1794(Top 99%)
25K15.53 mi2.42 mi10871+2842316+1142316+1149805(Top 35%)2015(Top 16%)2015(Top 111%)
30K18.64 mi3.11 mi10335+5362115+2012115+2018472(Top 30%)1586(Top 13%)1586(Top 87%)
20M20.00 mi1.36 mi10057+2782016+992016+997566(Top 27%)1367(Top 11%)1367(Top 75%)
21M21.00 mi1.00 mi9793+2641926+901926+906729(Top 24%)1198(Top 10%)1198(Top 66%)
35K21.75 mi0.75 mi9676+1171893+331893+337198(Top 25%)1375(Top 11%)1375(Top 76%)
23M23.00 mi1.25 mi9435+2411827+661827+666698(Top 24%)1273(Top 10%)1273(Top 70%)
24M24.00 mi1.00 mi9300+1351799+281799+287079(Top 25%)1493(Top 12%)1493(Top 82%)
40K24.85 mi0.85 mi9134+1661762+371762+376409(Top 23%)1308(Top 11%)1308(Top 72%)
25.2M25.20 mi0.35 mi9066+681752+101752+106948(Top 24%)1620(Top 13%)1620(Top 89%)
Finish26.22 mi1.02 mi8993+731763-111763-118217(Top 29%)2153(Top 18%)2153(Top 119%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11723

Females

2744

F45-49

2744

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11361

Females

2492

F45-49

2492

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11723

Females

2744

F45-49

2744

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10529

Females

2224

F45-49

2224

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9666

Females

1794

F45-49

1794

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9805

Females

2015

F45-49

2015

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8472

Females

1586

F45-49

1586

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7566

Females

1367

F45-49

1367

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6729

Females

1198

F45-49

1198

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7198

Females

1375

F45-49

1375

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6698

Females

1273

F45-49

1273

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7079

Females

1493

F45-49

1493

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6409

Females

1308

F45-49

1308

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6948

Females

1620

F45-49

1620

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8217

Females

2153

F45-49

2153

Passing Analysis

Category:
Athletes Passed
3194*
Passed By
662
Net Change
+2532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11525
5K → 10K312194+118#11525#11407
10K → 15K151228-77#11407#11484
15K → 20K30867+241#11484#11243
20K → Half924+88#11243#11155
Half → 25K31733+284#11155#10871
25K → 30K55418+536#10871#10335
30K → 20M2857+278#10335#10057
20M → 21M275*11+264#10057#9793
21M → 35K12710+117#9793#9676
35K → 23M25110+241#9676#9435
23M → 24M15621+135#9435#9300
24M → 40K1748+166#9300#9134
40K → 25.2M779+68#9134#9066
25.2M → Finish11542+73#9066#8993
TOTALS3194*662+2532

* 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