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BOSTON MARATHON 2024

Isabel Chen

Bib: 29256•F

NY

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:16
Rank: #23127
Start → 5K
31:16 | 10:04/mi
10K· 6.21 mi
1:03:47
Rank: #23330 (-203)
5K → 10K
32:31 | 10:28/mi
15K· 9.32 mi
1:37:46
Rank: #23455 (-125)
10K → 15K
33:59 | 10:56/mi
20K· 12.43 mi
2:14:02
Rank: #23579 (-124)
15K → 20K
36:16 | 11:40/mi
Half· 13.11 mi
2:21:23
Rank: #23558 (+21)
20K → Half
7:21 | 10:46/mi
25K· 15.53 mi
2:52:20
Rank: #23700 (-142)
Half → 25K
30:57 | 12:46/mi
30K· 18.64 mi
3:33:45
Rank: #23724 (-24)
25K → 30K
41:25 | 13:20/mi
20M
3:52:20
Rank: #23726 (-2)
30K → 20M
18:35 | 13:40/mi
21M
4:06:30
Rank: #23654 (+72)
20M → 21M
14:10 | 14:10/mi
35K· 21.75 mi
4:16:07
Rank: #23633 (+21)
21M → 35K
9:37 | 12:51/mi
23M
4:32:16
Rank: #23580 (+53)
35K → 23M
16:09 | 12:54/mi
24M
4:44:46
Rank: #23546 (+34)
23M → 24M
12:30 | 12:30/mi
40K· 24.85 mi
4:55:27
Rank: #23491 (+55)
24M → 40K
10:41 | 12:30/mi
25.2M
5:00:00
Rank: #23460 (+31)
40K → 25.2M
4:33 | 13:12/mi
Finish· 26.22 mi
5:10:41
Rank: #23382 (+78)
25.2M → Finish
10:41 | 10:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:23
Pace10:47 /mi
2nd Half
Distance13.11 mi
Time2:49:18
Pace12:55 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:2131:1610:0431:16
10:04
-
10K
6.21 mi12:28:521:03:4710:1632:31
10:28
+0:24
15K
9.32 mi13:02:511:37:4610:2933:59
10:56
+0:28
20K
12.43 mi13:39:072:14:0210:4736:16
11:40
+0:44
Half
13.11 mi13:46:282:21:2310:477:21
10:46
-0:54
25K
15.53 mi14:17:252:52:2011:0630:57
12:46
+2:00
30K
18.64 mi14:58:503:33:4511:2841:25
13:20
+0:34
20M
20.00 mi15:17:253:52:2011:3718:35
13:40
+0:20
21M
21.00 mi15:31:354:06:3011:4414:10
14:10
+0:30
35K
21.75 mi15:41:124:16:0711:479:37
12:51
-1:19
23M
23.00 mi15:57:214:32:1611:5016:09
12:54
+0:03
24M
24.00 mi16:09:514:44:4611:5212:30
12:30
-0:24
40K
24.85 mi16:20:324:55:2711:5310:41
12:30
0:00
25.2M
25.20 mi16:25:055:00:0011:544:33
13:12
+0:42
Finish
26.22 mi16:35:465:10:4111:5110:41
10:29
-2:43

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

10:04 /mi

Average Pace

11:51 /mi

Slowest Pace

14:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:04

49% of race

Time at Steady Pace

1:19:54

26% of race

Time at Slower Pace

1:18:43

25% of race

Average Pace: 11:51 /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 mi11:56:2131:1610:0431:16
10:04
#23127
10K
6.21 mi12:28:521:03:4710:1632:31
10:28
#23330
15K
9.32 mi13:02:511:37:4610:2933:59
10:56
#23455
20K
12.43 mi13:39:072:14:0210:4736:16
11:40
#23579
Half
13.11 mi13:46:282:21:2310:477:21
10:46
#23558
25K
15.53 mi14:17:252:52:2011:0630:57
12:46
#23700
30K
18.64 mi14:58:503:33:4511:2841:25
13:20
#23724
20M
20.00 mi15:17:253:52:2011:3718:35
13:40
#23726
21M
21.00 mi15:31:354:06:3011:4414:10
14:10
#23654
35K
21.75 mi15:41:124:16:0711:479:37
12:51
#23633
23M
23.00 mi15:57:214:32:1611:5016:09
12:54
#23580
24M
24.00 mi16:09:514:44:4611:5212:30
12:30
#23546
40K
24.85 mi16:20:324:55:2711:5310:41
12:30
#23491
25.2M
25.20 mi16:25:055:00:0011:544:33
13:12
#23460
Finish
26.22 mi16:35:465:10:4111:5110:41
10:29
#23382
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi231279461946123662(Top 93%)9782(Top 90%)9782(Top 210%)
10K6.21 mi3.10 mi23330-2039583-1229583-12223462(Top 92%)9666(Top 88%)9666(Top 207%)
15K9.32 mi3.11 mi23455-1259655-729655-7223662(Top 93%)9782(Top 90%)9782(Top 210%)
20K12.43 mi3.11 mi23579-1249740-859740-8523601(Top 92%)9782(Top 90%)9782(Top 210%)
Half13.11 mi0.68 mi23558+219729+119729+1123199(Top 91%)9610(Top 88%)9610(Top 206%)
25K15.53 mi2.42 mi23700-1429818-899818-8923988(Top 94%)10069(Top 92%)10069(Top 216%)
30K18.64 mi3.11 mi23724-249869-519869-5123659(Top 93%)9987(Top 91%)9987(Top 214%)
20M20.00 mi1.36 mi23726-29879-109879-1023657(Top 93%)10077(Top 92%)10077(Top 216%)
21M21.00 mi1.00 mi23654+729852+279852+2722557(Top 88%)9575(Top 88%)9575(Top 205%)
35K21.75 mi0.75 mi23633+219862-109862-1023071(Top 90%)9860(Top 90%)9860(Top 212%)
23M23.00 mi1.25 mi23580+539851+119851+1122389(Top 88%)9550(Top 87%)9550(Top 205%)
24M24.00 mi1.00 mi23546+349846+59846+522300(Top 87%)9581(Top 88%)9581(Top 206%)
40K24.85 mi0.85 mi23491+559831+159831+1521398(Top 84%)9181(Top 84%)9181(Top 197%)
25.2M25.20 mi0.35 mi23460+319827+49827+420146(Top 79%)8605(Top 79%)8605(Top 185%)
Finish26.22 mi1.02 mi23382+789790+379790+3720000(Top 78%)8482(Top 78%)8482(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

23662

Females

9782

F18-39

9782

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

23462

Females

9666

F18-39

9666

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

23662

Females

9782

F18-39

9782

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

23601

Females

9782

F18-39

9782

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

23199

Females

9610

F18-39

9610

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

23988

Females

10069

F18-39

10069

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

23659

Females

9987

F18-39

9987

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

23657

Females

10077

F18-39

10077

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

22557

Females

9575

F18-39

9575

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23071

Females

9860

F18-39

9860

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

22389

Females

9550

F18-39

9550

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

22300

Females

9581

F18-39

9581

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

21398

Females

9181

F18-39

9181

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20146

Females

8605

F18-39

8605

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20000

Females

8482

F18-39

8482

Passing Analysis

Category:
Athletes Passed
1032
Passed By
1287
Net Change
-255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23127
5K → 10K122325-203#23127#23330
10K → 15K106231-125#23330#23455
15K → 20K89213-124#23455#23579
20K → Half3514+21#23579#23558
Half → 25K60202-142#23558#23700
25K → 30K105129-24#23700#23724
30K → 20M5052-2#23724#23726
20M → 21M9018+72#23726#23654
21M → 35K5231+21#23654#23633
35K → 23M7825+53#23633#23580
23M → 24M5824+34#23580#23546
24M → 40K6914+55#23546#23491
40K → 25.2M376+31#23491#23460
25.2M → Finish813+78#23460#23382
TOTALS10321287-255
📊

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