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BOSTON MARATHON 2024

Chelsea Elam

Bib: 17666•F

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Overall
#0 / 25550
Top 45%
Gender (Female)
#0 / 10924
Top 32%
Division (F18-39)
#0 / 4660
Top 49%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:16
Rank: #13181
Start → 5K
24:16 | 7:49/mi
10K· 6.21 mi
48:32
Rank: #12959 (+222)
5K → 10K
24:16 | 7:49/mi
15K· 9.32 mi
1:13:05
Rank: #12859 (+100)
10K → 15K
24:33 | 7:54/mi
20K· 12.43 mi
1:38:25
Rank: #12783 (+76)
15K → 20K
25:20 | 8:09/mi
Half· 13.11 mi
1:43:47
Rank: #12725 (+58)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:03:47
Rank: #12462 (+263)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:31:05
Rank: #12391 (+71)
25K → 30K
27:18 | 8:47/mi
20M
2:43:29
Rank: #12358 (+33)
30K → 20M
12:24 | 9:07/mi
21M
2:53:22
Rank: #12330 (+28)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
2:59:37
Rank: #12209 (+121)
21M → 35K
6:15 | 8:21/mi
23M
3:10:58
Rank: #12115 (+94)
35K → 23M
11:21 | 9:04/mi
24M
3:19:13
Rank: #11912 (+203)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:26:32
Rank: #11727 (+185)
24M → 40K
7:19 | 8:33/mi
25.2M
3:29:53
Rank: #11679 (+48)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:38:04
Rank: #11509 (+170)
25.2M → Finish
8:11 | 8:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:54:17
Pace8:43 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4324:167:4924:16
7:49
-
10K
6.21 mi11:39:5948:327:4924:16
7:49
0:00
15K
9.32 mi12:04:321:13:057:5024:33
7:54
+0:05
20K
12.43 mi12:29:521:38:257:5525:20
8:09
+0:15
Half
13.11 mi12:35:141:43:477:555:22
7:52
-0:17
25K
15.53 mi12:55:142:03:477:5820:00
8:15
+0:23
30K
18.64 mi13:22:322:31:058:0627:18
8:47
+0:32
20M
20.00 mi13:34:562:43:298:1012:24
9:07
+0:20
21M
21.00 mi13:44:492:53:228:159:53
9:53
+0:46
35K
21.75 mi13:51:042:59:378:166:15
8:21
-1:32
23M
23.00 mi14:02:253:10:588:1811:21
9:04
+0:43
24M
24.00 mi14:10:403:19:138:188:15
8:15
-0:49
40K
24.85 mi14:17:593:26:328:197:19
8:33
+0:18
25.2M
25.20 mi14:21:203:29:538:203:21
9:43
+1:10
Finish
26.22 mi14:29:313:38:048:198:11
8:02
-1:41

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

7:49 /mi

Average Pace

8:19 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:27

36% of race

Time at Steady Pace

1:15:20

35% of race

Time at Slower Pace

1:04:17

29% of race

Average Pace: 8:19 /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 mi11:15:4324:167:4924:16
7:49
#13181
10K
6.21 mi11:39:5948:327:4924:16
7:49
#12959
15K
9.32 mi12:04:321:13:057:5024:33
7:54
#12859
20K
12.43 mi12:29:521:38:257:5525:20
8:09
#12783
Half
13.11 mi12:35:141:43:477:555:22
7:52
#12725
25K
15.53 mi12:55:142:03:477:5820:00
8:15
#12462
30K
18.64 mi13:22:322:31:058:0627:18
8:47
#12391
20M
20.00 mi13:34:562:43:298:1012:24
9:07
#12358
21M
21.00 mi13:44:492:53:228:159:53
9:53
#12330
35K
21.75 mi13:51:042:59:378:166:15
8:21
#12209
23M
23.00 mi14:02:253:10:588:1811:21
9:04
#12115
24M
24.00 mi14:10:403:19:138:188:15
8:15
#11912
40K
24.85 mi14:17:593:26:328:197:19
8:33
#11727
25.2M
25.20 mi14:21:203:29:538:203:21
9:43
#11679
Finish
26.22 mi14:29:313:38:048:198:11
8:02
#11509
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131813825382512712(Top 50%)3631(Top 33%)3631(Top 78%)
10K6.21 mi3.10 mi12959+2223706+1193706+11912751(Top 50%)3621(Top 33%)3621(Top 78%)
15K9.32 mi3.11 mi12859+1003673+333673+3312712(Top 50%)3631(Top 33%)3631(Top 78%)
20K12.43 mi3.11 mi12783+763642+313642+3112865(Top 50%)3770(Top 35%)3770(Top 81%)
Half13.11 mi0.68 mi12725+583627+153627+1511845(Top 46%)3255(Top 30%)3255(Top 70%)
25K15.53 mi2.42 mi12462+2633514+1133514+11311681(Top 46%)3333(Top 31%)3333(Top 72%)
30K18.64 mi3.11 mi12391+713574-603574-6012129(Top 47%)3791(Top 35%)3791(Top 81%)
20M20.00 mi1.36 mi12358+333601-273601-2712761(Top 50%)4436(Top 41%)4436(Top 95%)
21M21.00 mi1.00 mi12330+283653-523653-5212511(Top 49%)4525(Top 41%)4525(Top 97%)
35K21.75 mi0.75 mi12209+1213623+303623+309922(Top 39%)3188(Top 29%)3188(Top 68%)
23M23.00 mi1.25 mi12115+943640-173640-1711515(Top 45%)4159(Top 38%)4159(Top 89%)
24M24.00 mi1.00 mi11912+2033569+713569+718074(Top 32%)2530(Top 23%)2530(Top 54%)
40K24.85 mi0.85 mi11727+1853527+423527+428694(Top 34%)2926(Top 27%)2926(Top 63%)
25.2M25.20 mi0.35 mi11679+483516+113516+119732(Top 38%)3505(Top 32%)3505(Top 75%)
Finish26.22 mi1.02 mi11509+1703468+483468+488748(Top 34%)2939(Top 27%)2939(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

12712

Females

3631

F18-39

3631

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

12751

Females

3621

F18-39

3621

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

12712

Females

3631

F18-39

3631

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

12865

Females

3770

F18-39

3770

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

11845

Females

3255

F18-39

3255

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

11681

Females

3333

F18-39

3333

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12129

Females

3791

F18-39

3791

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

12761

Females

4436

F18-39

4436

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

12511

Females

4525

F18-39

4525

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

9922

Females

3188

F18-39

3188

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11515

Females

4159

F18-39

4159

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8074

Females

2530

F18-39

2530

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8694

Females

2926

F18-39

2926

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

9732

Females

3505

F18-39

3505

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

8748

Females

2939

F18-39

2939

Passing Analysis

Category:
Athletes Passed
3026
Passed By
1354
Net Change
+1672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13181
5K → 10K417195+222#13181#12959
10K → 15K261161+100#12959#12859
15K → 20K309233+76#12859#12783
20K → Half7012+58#12783#12725
Half → 25K366103+263#12725#12462
25K → 30K332261+71#12462#12391
30K → 20M155122+33#12391#12358
20M → 21M145117+28#12358#12330
21M → 35K14019+121#12330#12209
35K → 23M17581+94#12209#12115
23M → 24M2096+203#12115#11912
24M → 40K19712+185#11912#11727
40K → 25.2M6820+48#11727#11679
25.2M → Finish18212+170#11679#11509
TOTALS30261354+1672
📊

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