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BOSTON MARATHON 2024

Emily Ambrose

Bib: 4455•F

OH

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0:00
/ mi
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Overall
#0 / 25550
Top 23%
Gender (Female)
#0 / 10924
Top 8%
Division (F18-39)
#0 / 4660
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #3515
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
40:40
Rank: #3428 (+87)
5K → 10K
20:23 | 6:34/mi
15K· 9.32 mi
1:01:15
Rank: #3393 (+35)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:23:02
Rank: #3815 (-422)
15K → 20K
21:47 | 7:01/mi
Half· 13.11 mi
1:27:39
Rank: #3835 (-20)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:45:02
Rank: #4074 (-239)
Half → 25K
17:23 | 7:10/mi
30K· 18.64 mi
2:08:01
Rank: #4204 (-130)
25K → 30K
22:59 | 7:24/mi
20M
2:19:06
Rank: #4438 (-234)
30K → 20M
11:05 | 8:09/mi
21M
2:27:15
Rank: #4386 (+52)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:34:00
Rank: #4655 (-269)
21M → 35K
6:45 | 9:01/mi
23M
2:45:04
Rank: #4857 (-202)
35K → 23M
11:04 | 8:50/mi
24M
2:54:11
Rank: #5093 (-236)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:03:25
Rank: #5579 (-486)
24M → 40K
9:14 | 10:48/mi
25.2M
3:06:34
Rank: #5584 (-5)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:15:43
Rank: #5836 (-252)
25.2M → Finish
9:09 | 8:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:39
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:48:04
Pace8:15 /mi
📊Positive Split: 23.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2920:176:3220:17
6:32
-
10K
6.21 mi10:43:5240:406:3320:23
6:34
+0:02
15K
9.32 mi11:04:271:01:156:3420:35
6:38
+0:04
20K
12.43 mi11:26:141:23:026:4121:47
7:01
+0:23
Half
13.11 mi11:30:511:27:396:414:37
6:46
-0:15
25K
15.53 mi11:48:141:45:026:4617:23
7:10
+0:24
30K
18.64 mi12:11:132:08:016:5222:59
7:24
+0:14
20M
20.00 mi12:22:182:19:066:5711:05
8:09
+0:45
21M
21.00 mi12:30:272:27:157:018:09
8:09
0:00
35K
21.75 mi12:37:122:34:007:056:45
9:01
+0:52
23M
23.00 mi12:48:162:45:047:1111:04
8:50
-0:11
24M
24.00 mi12:57:232:54:117:159:07
9:07
+0:17
40K
24.85 mi13:06:373:03:257:239:14
10:48
+1:41
25.2M
25.20 mi13:09:463:06:347:243:09
9:08
-1:40
Finish
26.22 mi13:18:553:15:437:289:09
8:59
-0:09

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

6:32 /mi

Average Pace

7:28 /mi

Slowest Pace

10:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:01

65% of race

Time at Steady Pace

19:14

10% of race

Time at Slower Pace

48:28

25% of race

Average Pace: 7:28 /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 mi10:23:2920:176:3220:17
6:32
#3515
10K
6.21 mi10:43:5240:406:3320:23
6:34
#3428
15K
9.32 mi11:04:271:01:156:3420:35
6:38
#3393
20K
12.43 mi11:26:141:23:026:4121:47
7:01
#3815
Half
13.11 mi11:30:511:27:396:414:37
6:46
#3835
25K
15.53 mi11:48:141:45:026:4617:23
7:10
#4074
30K
18.64 mi12:11:132:08:016:5222:59
7:24
#4204
20M
20.00 mi12:22:182:19:066:5711:05
8:09
#4438
21M
21.00 mi12:30:272:27:157:018:09
8:09
#4386
35K
21.75 mi12:37:122:34:007:056:45
9:01
#4655
23M
23.00 mi12:48:162:45:047:1111:04
8:50
#4857
24M
24.00 mi12:57:232:54:117:159:07
9:07
#5093
40K
24.85 mi13:06:373:03:257:239:14
10:48
#5579
25.2M
25.20 mi13:09:463:06:347:243:09
9:08
#5584
Finish
26.22 mi13:18:553:15:437:289:09
8:59
#5836
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 mi35151621623440(Top 13%)173(Top 2%)173(Top 4%)
10K6.21 mi3.10 mi3428+87163-1163-13392(Top 13%)162(Top 1%)162(Top 3%)
15K9.32 mi3.11 mi3393+35156+7156+73440(Top 13%)173(Top 2%)173(Top 4%)
20K12.43 mi3.11 mi3815-422198-42198-425336(Top 21%)492(Top 5%)492(Top 11%)
Half13.11 mi0.68 mi3835-20204-6204-64354(Top 17%)321(Top 3%)321(Top 7%)
25K15.53 mi2.42 mi4074-239245-41245-415157(Top 20%)560(Top 5%)560(Top 12%)
30K18.64 mi3.11 mi4204-130282-37282-374632(Top 18%)538(Top 5%)538(Top 12%)
20M20.00 mi1.36 mi4438-234346-64346-647571(Top 30%)1802(Top 16%)1802(Top 39%)
21M21.00 mi1.00 mi4386+52348-2348-24749(Top 19%)807(Top 7%)807(Top 17%)
35K21.75 mi0.75 mi4655-269410-62410-6213415(Top 53%)5008(Top 46%)5008(Top 107%)
23M23.00 mi1.25 mi4857-202490-80490-8010306(Top 40%)3549(Top 32%)3549(Top 76%)
24M24.00 mi1.00 mi5093-236579-89579-8912722(Top 50%)4779(Top 44%)4779(Top 103%)
40K24.85 mi0.85 mi5579-486741-162741-16217555(Top 69%)7293(Top 67%)7293(Top 157%)
25.2M25.20 mi0.35 mi5584-5766-25766-257184(Top 28%)2251(Top 21%)2251(Top 48%)
Finish26.22 mi1.02 mi5836-252872-106872-10614094(Top 55%)5514(Top 50%)5514(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3440

Females

173

F18-39

173

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3392

Females

162

F18-39

162

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3440

Females

173

F18-39

173

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5336

Females

492

F18-39

492

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4354

Females

321

F18-39

321

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5157

Females

560

F18-39

560

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4632

Females

538

F18-39

538

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7571

Females

1802

F18-39

1802

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

4749

Females

807

F18-39

807

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

13415

Females

5008

F18-39

5008

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10306

Females

3549

F18-39

3549

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

12722

Females

4779

F18-39

4779

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

17555

Females

7293

F18-39

7293

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7184

Females

2251

F18-39

2251

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14094

Females

5514

F18-39

5514

Passing Analysis

Category:
Athletes Passed
888
Passed By
3209
Net Change
-2321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3515
5K → 10K18497+87#3515#3428
10K → 15K11479+35#3428#3393
15K → 20K43465-422#3393#3815
20K → Half1636-20#3815#3835
Half → 25K74313-239#3835#4074
25K → 30K163293-130#4074#4204
30K → 20M49283-234#4204#4438
20M → 21M10957+52#4438#4386
21M → 35K13282-269#4386#4655
35K → 23M37239-202#4655#4857
23M → 24M20256-236#4857#5093
24M → 40K16502-486#5093#5579
40K → 25.2M3439-5#5579#5584
25.2M → Finish16268-252#5584#5836
TOTALS8883209-2321
📊

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