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BOSTON MARATHON 2025

Emily Dunn

Bib: 5253•F

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Overall
#0 / 28404
Top 16%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #5423
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
41:38
Rank: #5375 (+48)
5K → 10K
20:50 | 6:42/mi
15K· 9.32 mi
1:02:28
Rank: #5283 (+92)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:23:38
Rank: #5271 (+12)
15K → 20K
21:10 | 6:49/mi
Half· 13.11 mi
1:28:05
Rank: #5164 (+107)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:44:23
Rank: #4973 (+191)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:05:32
Rank: #4603 (+370)
25K → 30K
21:09 | 6:48/mi
20M
2:15:33
Rank: #4761 (-158)
30K → 20M
10:01 | 7:22/mi
21M
2:23:19
Rank: #4811 (-50)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:28:22
Rank: #4733 (+78)
21M → 35K
5:03 | 6:45/mi
23M
2:37:01
Rank: #4608 (+125)
35K → 23M
8:39 | 6:55/mi
24M
2:43:54
Rank: #4543 (+65)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:50:12
Rank: #4603 (-60)
24M → 40K
6:18 | 7:22/mi
25.2M
2:53:03
Rank: #4659 (-56)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
2:59:50
Rank: #4642 (+17)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:31:45
Pace7:00 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0120:486:4220:48
6:42
-
10K
6.21 mi10:45:5141:386:4220:50
6:42
0:00
15K
9.32 mi11:06:411:02:286:4220:50
6:42
0:00
20K
12.43 mi11:27:511:23:386:4421:10
6:49
+0:07
Half
13.11 mi11:32:181:28:056:434:27
6:31
-0:18
25K
15.53 mi11:48:361:44:236:4316:18
6:43
+0:12
30K
18.64 mi12:09:452:05:326:4421:09
6:48
+0:05
20M
20.00 mi12:19:462:15:336:4710:01
7:22
+0:34
21M
21.00 mi12:27:322:23:196:497:46
7:46
+0:24
35K
21.75 mi12:32:352:28:226:495:03
6:45
-1:01
23M
23.00 mi12:41:142:37:016:508:39
6:55
+0:10
24M
24.00 mi12:48:072:43:546:506:53
6:53
-0:02
40K
24.85 mi12:54:252:50:126:516:18
7:22
+0:29
25.2M
25.20 mi12:57:162:53:036:522:51
8:16
+0:54
Finish
26.22 mi13:04:032:59:506:526:47
6:39
-1:37

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

6:31 /mi

Average Pace

6:52 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:27

2% of race

Time at Steady Pace

2:28:27

83% of race

Time at Slower Pace

26:56

15% of race

Average Pace: 6:52 /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 mi10:25:0120:486:4220:48
6:42
#5423
10K
6.21 mi10:45:5141:386:4220:50
6:42
#5375
15K
9.32 mi11:06:411:02:286:4220:50
6:42
#5283
20K
12.43 mi11:27:511:23:386:4421:10
6:49
#5271
Half
13.11 mi11:32:181:28:056:434:27
6:31
#5164
25K
15.53 mi11:48:361:44:236:4316:18
6:43
#4973
30K
18.64 mi12:09:452:05:326:4421:09
6:48
#4603
20M
20.00 mi12:19:462:15:336:4710:01
7:22
#4761
21M
21.00 mi12:27:322:23:196:497:46
7:46
#4811
35K
21.75 mi12:32:352:28:226:495:03
6:45
#4733
23M
23.00 mi12:41:142:37:016:508:39
6:55
#4608
24M
24.00 mi12:48:072:43:546:506:53
6:53
#4543
40K
24.85 mi12:54:252:50:126:516:18
7:22
#4603
25.2M
25.20 mi12:57:162:53:036:522:51
8:16
#4659
Finish
26.22 mi13:04:032:59:506:526:47
6:39
#4642
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi54233783785149(Top 18%)371(Top 3%)371(Top 7%)
10K6.21 mi3.10 mi5375+48383-5383-55410(Top 19%)398(Top 3%)398(Top 7%)
15K9.32 mi3.11 mi5283+92372+11372+115149(Top 18%)371(Top 3%)371(Top 7%)
20K12.43 mi3.11 mi5271+12378-6378-65439(Top 19%)444(Top 4%)444(Top 8%)
Half13.11 mi0.68 mi5164+107363+15363+153915(Top 14%)222(Top 2%)222(Top 4%)
25K15.53 mi2.42 mi4973+191348+15348+154320(Top 15%)305(Top 2%)305(Top 6%)
30K18.64 mi3.11 mi4603+370307+41307+413511(Top 12%)240(Top 2%)240(Top 4%)
20M20.00 mi1.36 mi4761-158341-34341-346220(Top 22%)856(Top 7%)856(Top 16%)
21M21.00 mi1.00 mi4811-50355-14355-146008(Top 21%)916(Top 7%)916(Top 17%)
35K21.75 mi0.75 mi4733+783553553870(Top 14%)380(Top 3%)380(Top 7%)
23M23.00 mi1.25 mi4608+125349+6349+63291(Top 12%)289(Top 2%)289(Top 5%)
24M24.00 mi1.00 mi4543+65347+2347+24021(Top 14%)457(Top 4%)457(Top 8%)
40K24.85 mi0.85 mi4603-60361-14361-146032(Top 21%)1140(Top 9%)1140(Top 21%)
25.2M25.20 mi0.35 mi4659-56372-11372-117472(Top 26%)1812(Top 15%)1812(Top 33%)
Finish26.22 mi1.02 mi4642+17373-1373-13669(Top 13%)467(Top 4%)467(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5149

Females

371

F18-39

371

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5410

Females

398

F18-39

398

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5149

Females

371

F18-39

371

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5439

Females

444

F18-39

444

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3915

Females

222

F18-39

222

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4320

Females

305

F18-39

305

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3511

Females

240

F18-39

240

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6220

Females

856

F18-39

856

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

6008

Females

916

F18-39

916

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3870

Females

380

F18-39

380

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3291

Females

289

F18-39

289

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

4021

Females

457

F18-39

457

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

6032

Females

1140

F18-39

1140

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7472

Females

1812

F18-39

1812

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3669

Females

467

F18-39

467

Passing Analysis

Category:
Athletes Passed
1729
Passed By
948
Net Change
+781
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5423
5K → 10K209161+48#5423#5375
10K → 15K17078+92#5375#5283
15K → 20K135123+12#5283#5271
20K → Half1092+107#5271#5164
Half → 25K21120+191#5164#4973
25K → 30K38919+370#4973#4603
30K → 20M33191-158#4603#4761
20M → 21M4898-50#4761#4811
21M → 35K9416+78#4811#4733
35K → 23M13914+125#4733#4608
23M → 24M9429+65#4608#4543
24M → 40K3898-60#4543#4603
40K → 25.2M763-56#4603#4659
25.2M → Finish5336+17#4659#4642
TOTALS1729948+781
📊

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