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BOSTON MARATHON 2024

Kuan Ju Chen

Bib: 18424•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F40-44)
#0 / 1613
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:47/mi
36:36
↑ 97↓ 3451.5%
10K· 6.21 mi
13:19/mi
1:17:59
↑ 79↓ 1380.4%
15K· 9.32 mi
13:33/mi
2:00:06
↑ 67↓ 78
20K· 12.43 mi
14:12/mi
2:44:14
↑ 106↓ 860.1%
Half· 13.11 mi
13:33/mi
2:53:29
↑ 19↓ 370.5%
25K· 15.53 mi
14:16/mi
3:28:05
↑ 66↓ 880.2%
30K· 18.64 mi
15:11/mi
4:15:16
↑ 181↓ 1480.2%
20M
15:49/mi
4:36:45
↑ 64↓ 500.2%
21M
18:16/mi
4:55:01
↑ 106↓ 241.6%
35K· 21.75 mi
14:34/mi
5:05:55
↑ 17↓ 861.7%
23M
14:44/mi
5:24:22
↑ 23↓ 630.6%
24M
14:47/mi
5:39:09
↓ 821.3%
40K· 24.85 mi
16:10/mi
5:52:58
↓ 200.3%
25.2M
18:13/mi
5:59:15
↑ 13↓ 160.2%
Finish· 26.22 mi
14:12/mi
6:13:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:53:29
Pace13:14 /mi
2nd Half
Distance13.11 mi
Time3:20:14
Pace15:16 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2336:3611:4736:36
11:47
-
10K
6.21 mi12:10:461:17:5912:3341:23
13:19
+1:32
15K
9.32 mi12:52:532:00:0612:5342:07
13:33
+0:14
20K
12.43 mi13:37:012:44:1413:1344:08
14:12
+0:39
Half
13.11 mi13:46:162:53:2913:149:15
13:33
-0:39
25K
15.53 mi14:20:523:28:0513:2434:36
14:16
+0:43
30K
18.64 mi15:08:034:15:1613:4247:11
15:11
+0:55
20M
20.00 mi15:29:324:36:4513:5021:29
15:49
+0:38
21M
21.00 mi15:47:484:55:0114:0318:16
18:16
+2:27
35K
21.75 mi15:58:425:05:5514:0410:54
14:34
-3:42
23M
23.00 mi16:17:095:24:2214:0618:27
14:44
+0:10
24M
24.00 mi16:31:565:39:0914:0814:47
14:47
+0:03
40K
24.85 mi16:45:455:52:5814:1213:49
16:10
+1:23
25.2M
25.20 mi16:52:025:59:1514:156:17
18:13
+2:03
Finish
26.22 mi17:06:306:13:4314:1614:28
14:12
-4:01

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

11:47 /mi

Average Pace

14:16 /mi

Slowest Pace

18:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:21

35% of race

Time at Steady Pace

3:04:31

49% of race

Time at Slower Pace

59:51

16% of race

Average Pace: 14:15 /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 mi11:29:2336:3611:4736:36
11:47
#25341
10K
6.21 mi12:10:461:17:5912:3341:23
13:19
#25468
15K
9.32 mi12:52:532:00:0612:5342:07
13:33
#25479
20K
12.43 mi13:37:012:44:1413:1344:08
14:12
#25479
Half
13.11 mi13:46:162:53:2913:149:15
13:33
#25489
25K
15.53 mi14:20:523:28:0513:2434:36
14:16
#25469
30K
18.64 mi15:08:034:15:1613:4247:11
15:11
#25461
20M
20.00 mi15:29:324:36:4513:5021:29
15:49
#25478
21M
21.00 mi15:47:484:55:0114:0318:16
18:16
#25497
35K
21.75 mi15:58:425:05:5514:0410:54
14:34
#25499
23M
23.00 mi16:17:095:24:2214:0618:27
14:44
#25502
24M
24.00 mi16:31:565:39:0914:0814:47
14:47
#25503
40K
24.85 mi16:45:455:52:5814:1213:49
16:10
#25508
25.2M
25.20 mi16:52:025:59:1514:156:17
18:13
#25508
Finish
26.22 mi17:06:306:13:4314:1614:28
14:12
#25510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25341107921079225433(Top 100%)10858(Top 99%)10858(Top 673%)
10K6.21 mi3.10 mi25468-12710879-8710879-8725504(Top 100%)10903(Top 100%)10903(Top 676%)
15K9.32 mi3.11 mi25479-1110885-610885-625433(Top 100%)10858(Top 99%)10858(Top 673%)
20K12.43 mi3.11 mi2547910888-310888-325413(Top 99%)10848(Top 99%)10848(Top 673%)
Half13.11 mi0.68 mi25489-1010897-910897-925333(Top 99%)10812(Top 99%)10812(Top 670%)
25K15.53 mi2.42 mi25469+2010884+1310884+1325058(Top 98%)10659(Top 98%)10659(Top 661%)
30K18.64 mi3.11 mi25461+810880+410880+425054(Top 98%)10717(Top 98%)10717(Top 664%)
20M20.00 mi1.36 mi25478-1710891-1110891-1125130(Top 98%)10761(Top 99%)10761(Top 667%)
21M21.00 mi1.00 mi25497-1910901-1010901-1025316(Top 99%)10843(Top 99%)10843(Top 672%)
35K21.75 mi0.75 mi25499-210903-210903-224670(Top 97%)10603(Top 97%)10603(Top 657%)
23M23.00 mi1.25 mi25502-310905-210905-224459(Top 96%)10510(Top 96%)10510(Top 652%)
24M24.00 mi1.00 mi25503-1109051090524725(Top 97%)10661(Top 98%)10661(Top 661%)
40K24.85 mi0.85 mi25508-510910-510910-525012(Top 98%)10766(Top 99%)10766(Top 667%)
25.2M25.20 mi0.35 mi2550810911-110911-125075(Top 98%)10776(Top 99%)10776(Top 668%)
Finish26.22 mi1.02 mi25510-210913-210913-224996(Top 98%)10775(Top 99%)10775(Top 668%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

25433

Females

10858

F40-44

10858

5K→10K

3.1 - 6.2 mi

Top 100%
×5story building
+79ft-138ft

Overall

25504

Females

10903

F40-44

10903

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

25433

Females

10858

F40-44

10858

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

25413

Females

10848

F40-44

10848

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

25333

Females

10812

F40-44

10812

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

25058

Females

10659

F40-44

10659

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

25054

Females

10717

F40-44

10717

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

25130

Females

10761

F40-44

10761

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

25316

Females

10843

F40-44

10843

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

24670

Females

10603

F40-44

10603

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

24459

Females

10510

F40-44

10510

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

24725

Females

10661

F40-44

10661

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

25012

Females

10766

F40-44

10766

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

25075

Females

10776

F40-44

10776

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

24996

Females

10775

F40-44

10775

Passing Analysis

Category:
Athletes Passed
104
Passed By
273
Net Change
-169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25341
5K → 10K7134-127#25341#25468
10K → 15K1021-11#25468#25479
15K → 20K16160#25479#25479
20K → Half313-10#25479#25489
Half → 25K277+20#25489#25469
25K → 30K2113+8#25469#25461
30K → 20M522-17#25461#25478
20M → 21M423-19#25478#25497
21M → 35K24-2#25497#25499
35K → 23M25-3#25499#25502
23M → 24M34-1#25502#25503
24M → 40K16-5#25503#25508
40K → 25.2M110#25508#25508
25.2M → Finish24-2#25508#25510
TOTALS104273-169
📊

Passing Visuals

Category:
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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