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BOSTON MARATHON 2024

Jui Chuan Chao

Bib: 9811•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 37%
Gender (Female)
#0 / 10924
Top 22%
Masters (Masters Women)
#0 / 6263
Top 11%
Division (F45-49)
#0 / 1753
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:10
Rank: #7923
Start → 5K
22:10 | 7:08/mi
10K· 6.21 mi
45:19
Rank: #8869 (-946)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:08:53
Rank: #9283 (-414)
10K → 15K
23:34 | 7:35/mi
20K· 12.43 mi
1:33:37
Rank: #9884 (-601)
15K → 20K
24:44 | 7:58/mi
Half· 13.11 mi
1:38:55
Rank: #9959 (-75)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
1:58:47
Rank: #10147 (-188)
Half → 25K
19:52 | 8:12/mi
30K· 18.64 mi
2:24:23
Rank: #9872 (+275)
25K → 30K
25:36 | 8:14/mi
20M
2:35:43
Rank: #9679 (+193)
30K → 20M
11:20 | 8:20/mi
21M
2:44:57
Rank: #9622 (+57)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
2:51:01
Rank: #9514 (+108)
21M → 35K
6:04 | 8:07/mi
23M
3:02:12
Rank: #9577 (-63)
35K → 23M
11:11 | 8:56/mi
24M
3:10:33
Rank: #9494 (+83)
23M → 24M
8:21 | 8:21/mi
40K· 24.85 mi
3:17:56
Rank: #9455 (+39)
24M → 40K
7:23 | 8:38/mi
25.2M
3:21:15
Rank: #9446 (+9)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:29:51
Rank: #9525 (-79)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:55
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:50:56
Pace8:28 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4722:107:0822:10
7:08
-
10K
6.21 mi11:10:5645:197:1823:09
7:27
+0:19
15K
9.32 mi11:34:301:08:537:2323:34
7:35
+0:08
20K
12.43 mi11:59:141:33:377:3224:44
7:58
+0:23
Half
13.11 mi12:04:321:38:557:335:18
7:46
-0:12
25K
15.53 mi12:24:241:58:477:3919:52
8:12
+0:26
30K
18.64 mi12:50:002:24:237:4525:36
8:14
+0:02
20M
20.00 mi13:01:202:35:437:4711:20
8:20
+0:06
21M
21.00 mi13:10:342:44:577:519:14
9:14
+0:54
35K
21.75 mi13:16:382:51:017:526:04
8:07
-1:07
23M
23.00 mi13:27:493:02:127:5511:11
8:56
+0:49
24M
24.00 mi13:36:103:10:337:568:21
8:21
-0:35
40K
24.85 mi13:43:333:17:567:587:23
8:38
+0:17
25.2M
25.20 mi13:46:523:21:157:593:19
9:37
+0:59
Finish
26.22 mi13:55:283:29:518:018:36
8:26
-1:11

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

7:08 /mi

Average Pace

8:01 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:11

35% of race

Time at Steady Pace

1:44:33

50% of race

Time at Slower Pace

31:07

15% of race

Average Pace: 8:00 /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 mi10:47:4722:107:0822:10
7:08
#7923
10K
6.21 mi11:10:5645:197:1823:09
7:27
#8869
15K
9.32 mi11:34:301:08:537:2323:34
7:35
#9283
20K
12.43 mi11:59:141:33:377:3224:44
7:58
#9884
Half
13.11 mi12:04:321:38:557:335:18
7:46
#9959
25K
15.53 mi12:24:241:58:477:3919:52
8:12
#10147
30K
18.64 mi12:50:002:24:237:4525:36
8:14
#9872
20M
20.00 mi13:01:202:35:437:4711:20
8:20
#9679
21M
21.00 mi13:10:342:44:577:519:14
9:14
#9622
35K
21.75 mi13:16:382:51:017:526:04
8:07
#9514
23M
23.00 mi13:27:493:02:127:5511:11
8:56
#9577
24M
24.00 mi13:36:103:10:337:568:21
8:21
#9494
40K
24.85 mi13:43:333:17:567:587:23
8:38
#9455
25.2M
25.20 mi13:46:523:21:157:593:19
9:37
#9446
Finish
26.22 mi13:55:283:29:518:018:36
8:26
#9525
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi79231142114210339(Top 40%)2352(Top 22%)2352(Top 134%)
10K6.21 mi3.10 mi8869-9461561-4191561-4199873(Top 39%)2041(Top 19%)2041(Top 116%)
15K9.32 mi3.11 mi9283-4141752-1911752-19110339(Top 40%)2352(Top 22%)2352(Top 134%)
20K12.43 mi3.11 mi9884-6012084-3322084-33211569(Top 45%)3095(Top 28%)3095(Top 177%)
Half13.11 mi0.68 mi9959-752133-492133-4911116(Top 44%)2856(Top 26%)2856(Top 163%)
25K15.53 mi2.42 mi10147-1882288-1552288-15511321(Top 44%)3129(Top 29%)3129(Top 178%)
30K18.64 mi3.11 mi9872+2752254+342254+349239(Top 36%)2334(Top 21%)2334(Top 133%)
20M20.00 mi1.36 mi9679+1932218+362218+368609(Top 34%)2281(Top 21%)2281(Top 130%)
21M21.00 mi1.00 mi9622+572237-192237-199648(Top 38%)3031(Top 28%)3031(Top 173%)
35K21.75 mi0.75 mi9514+1082224+132224+138486(Top 33%)2452(Top 22%)2452(Top 140%)
23M23.00 mi1.25 mi9577-632318-942318-9410818(Top 42%)3798(Top 35%)3798(Top 217%)
24M24.00 mi1.00 mi9494+832326-82326-88577(Top 34%)2746(Top 25%)2746(Top 157%)
40K24.85 mi0.85 mi9455+392351-252351-259065(Top 35%)3107(Top 28%)3107(Top 177%)
25.2M25.20 mi0.35 mi9446+92364-132364-139242(Top 36%)3257(Top 30%)3257(Top 186%)
Finish26.22 mi1.02 mi9525-792431-672431-6711192(Top 44%)4064(Top 37%)4064(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10339

Females

2352

F45-49

2352

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

9873

Females

2041

F45-49

2041

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10339

Females

2352

F45-49

2352

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11569

Females

3095

F45-49

3095

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11116

Females

2856

F45-49

2856

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11321

Females

3129

F45-49

3129

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9239

Females

2334

F45-49

2334

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

8609

Females

2281

F45-49

2281

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

9648

Females

3031

F45-49

3031

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8486

Females

2452

F45-49

2452

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

10818

Females

3798

F45-49

3798

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

8577

Females

2746

F45-49

2746

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9065

Females

3107

F45-49

3107

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9242

Females

3257

F45-49

3257

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11192

Females

4064

F45-49

4064

Passing Analysis

Category:
Athletes Passed
1793*
Passed By
3392
Net Change
-1602
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7923
5K → 10K45991-946#7923#8869
10K → 15K79493-414#8869#9283
15K → 20K82682-601#9283#9884
20K → Half2196-75#9884#9959
Half → 25K156342-188#9959#10147
25K → 30K415140+275#10147#9872
30K → 20M24249+193#9872#9679
20M → 21M14689+57#9679#9622
21M → 35K13628+108#9622#9514
35K → 23M128191-63#9514#9577
23M → 24M140*57+83#9577#9494
24M → 40K10566+39#9494#9455
40K → 25.2M4132+9#9455#9446
25.2M → Finish57136-79#9446#9525
TOTALS1793*3392-1602

* 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