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BOSTON MARATHON 2024

Chun-Jie Li

Bib: 17590•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 46%
Division (F18-39)
#0 / 4660
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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:29/mi
51:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:16:22
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:42:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:47:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:09:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:28/mi
2:39:16
↑ 181↓ 1480.2%
20M
9:07/mi
2:51:40
↑ 64↓ 500.2%
21M
9:48/mi
3:01:28
↑ 106↓ 241.6%
35K· 21.75 mi
10:47/mi
3:09:32
↑ 17↓ 861.7%
23M
9:17/mi
3:21:10
↑ 23↓ 630.6%
24M
8:48/mi
3:29:58
↓ 821.3%
40K· 24.85 mi
9:23/mi
3:37:59
↓ 200.3%
25.2M
11:16/mi
3:41:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:55/mi
3:50:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:56
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:03:01
Pace9:23 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5724:508:0024:50
8:00
-
10K
6.21 mi11:42:1751:108:1426:20
8:29
+0:29
15K
9.32 mi12:07:291:16:228:1225:12
8:07
-0:22
20K
12.43 mi12:33:251:42:188:1425:56
8:21
+0:14
Half
13.11 mi12:39:031:47:568:145:38
8:15
-0:06
25K
15.53 mi13:00:582:09:518:2221:55
9:02
+0:47
30K
18.64 mi13:30:232:39:168:3329:25
9:28
+0:26
20M
20.00 mi13:42:472:51:408:3512:24
9:07
-0:21
21M
21.00 mi13:52:353:01:288:389:48
9:48
+0:41
35K
21.75 mi14:00:393:09:328:438:04
10:47
+0:59
23M
23.00 mi14:12:173:21:108:4511:38
9:17
-1:30
24M
24.00 mi14:21:053:29:588:458:48
8:48
-0:29
40K
24.85 mi14:29:063:37:598:468:01
9:23
+0:35
25.2M
25.20 mi14:32:593:41:528:483:53
11:16
+1:53
Finish
26.22 mi14:42:043:50:578:499:05
8:55
-2:21

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

8:00 /mi

Average Pace

8:49 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:56

47% of race

Time at Steady Pace

1:41:16

44% of race

Time at Slower Pace

21:45

9% of race

Average Pace: 8:48 /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 mi11:15:5724:508:0024:50
8:00
#14614
10K
6.21 mi11:42:1751:108:1426:20
8:29
#15958
15K
9.32 mi12:07:291:16:228:1225:12
8:07
#15308
20K
12.43 mi12:33:251:42:188:1425:56
8:21
#14917
Half
13.11 mi12:39:031:47:568:145:38
8:15
#14896
25K
15.53 mi13:00:582:09:518:2221:55
9:02
#14982
30K
18.64 mi13:30:232:39:168:3329:25
9:28
#15061
20M
20.00 mi13:42:472:51:408:3512:24
9:07
#14885
21M
21.00 mi13:52:353:01:288:389:48
9:48
#14693
35K
21.75 mi14:00:393:09:328:438:04
10:47
#14968
23M
23.00 mi14:12:173:21:108:4511:38
9:17
#14814
24M
24.00 mi14:21:053:29:588:458:48
8:48
#14592
40K
24.85 mi14:29:063:37:598:468:01
9:23
#14476
25.2M
25.20 mi14:32:593:41:528:483:53
11:16
#14496
Finish
26.22 mi14:42:043:50:578:499:05
8:55
#14453
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi146144698469814176(Top 55%)4475(Top 41%)4475(Top 96%)
10K6.21 mi3.10 mi15958-13445505-8075505-80717121(Top 67%)6202(Top 57%)6202(Top 133%)
15K9.32 mi3.11 mi15308+6505135+3705135+37014176(Top 55%)4475(Top 41%)4475(Top 96%)
20K12.43 mi3.11 mi14917+3914896+2394896+23913988(Top 55%)4419(Top 40%)4419(Top 95%)
Half13.11 mi0.68 mi14896+214888+84888+814416(Top 56%)4715(Top 43%)4715(Top 101%)
25K15.53 mi2.42 mi14982-864988-1004988-10015690(Top 61%)5549(Top 51%)5549(Top 119%)
30K18.64 mi3.11 mi15061-795121-1335121-13315343(Top 60%)5607(Top 51%)5607(Top 120%)
20M20.00 mi1.36 mi14885+1765051+705051+7012777(Top 50%)4452(Top 41%)4452(Top 96%)
21M21.00 mi1.00 mi14693+1924994+574994+5712161(Top 48%)4345(Top 40%)4345(Top 93%)
35K21.75 mi0.75 mi14968-2755185-1915185-19119308(Top 76%)7984(Top 73%)7984(Top 171%)
23M23.00 mi1.25 mi14814+1545151+345151+3412566(Top 49%)4695(Top 43%)4695(Top 101%)
24M24.00 mi1.00 mi14592+2225075+765075+7611147(Top 44%)3997(Top 37%)3997(Top 86%)
40K24.85 mi0.85 mi14476+1165047+285047+2812626(Top 49%)4851(Top 44%)4851(Top 104%)
25.2M25.20 mi0.35 mi14496-205069-225069-2215361(Top 60%)6199(Top 57%)6199(Top 133%)
Finish26.22 mi1.02 mi14453+435064+55064+513799(Top 54%)5373(Top 49%)5373(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14176

Females

4475

F18-39

4475

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17121

Females

6202

F18-39

6202

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14176

Females

4475

F18-39

4475

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

13988

Females

4419

F18-39

4419

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14416

Females

4715

F18-39

4715

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

15690

Females

5549

F18-39

5549

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15343

Females

5607

F18-39

5607

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

12777

Females

4452

F18-39

4452

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12161

Females

4345

F18-39

4345

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

19308

Females

7984

F18-39

7984

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

12566

Females

4695

F18-39

4695

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11147

Females

3997

F18-39

3997

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12626

Females

4851

F18-39

4851

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15361

Females

6199

F18-39

6199

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

13799

Females

5373

F18-39

5373

Passing Analysis

Category:
Athletes Passed
2814
Passed By
2653
Net Change
+161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14614
5K → 10K351379-1344#14614#15958
10K → 15K66919+650#15958#15308
15K → 20K44453+391#15308#14917
20K → Half5029+21#14917#14896
Half → 25K198284-86#14896#14982
25K → 30K241320-79#14982#15061
30K → 20M21943+176#15061#14885
20M → 21M23341+192#14885#14693
21M → 35K27302-275#14693#14968
35K → 23M20753+154#14968#14814
23M → 24M2264+222#14814#14592
24M → 40K14630+116#14592#14476
40K → 25.2M3050-20#14476#14496
25.2M → Finish8946+43#14496#14453
TOTALS28142653+161
📊

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