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BOSTON MARATHON 2024

Ya Ching Chang

Bib: 18696•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
9:03/mi
28:06
↑ 97↓ 3451.5%
10K· 6.21 mi
9:18/mi
57:00
↑ 79↓ 1380.4%
15K· 9.32 mi
9:34/mi
1:26:44
↑ 67↓ 78
20K· 12.43 mi
9:36/mi
1:56:34
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:02:51
↑ 19↓ 370.5%
25K· 15.53 mi
9:36/mi
2:26:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:56:35
↑ 181↓ 1480.2%
20M
9:44/mi
3:09:48
↑ 64↓ 500.2%
21M
10:06/mi
3:19:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:05/mi
3:26:42
↑ 17↓ 861.7%
23M
9:36/mi
3:38:43
↑ 23↓ 630.6%
24M
9:16/mi
3:47:59
↓ 821.3%
40K· 24.85 mi
9:32/mi
3:56:08
↓ 200.3%
25.2M
10:26/mi
3:59:44
↑ 13↓ 160.2%
Finish· 26.22 mi
9:01/mi
4:08:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:51
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time2:06:04
Pace9:37 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0928:069:0328:06
9:03
-
10K
6.21 mi11:48:0357:009:1028:54
9:18
+0:15
15K
9.32 mi12:17:471:26:449:1829:44
9:34
+0:16
20K
12.43 mi12:47:371:56:349:2329:50
9:36
+0:02
Half
13.11 mi12:53:542:02:519:226:17
9:13
-0:23
25K
15.53 mi13:17:102:26:079:2423:16
9:36
+0:23
30K
18.64 mi13:47:382:56:359:2830:28
9:48
+0:12
20M
20.00 mi14:00:513:09:489:2913:13
9:44
-0:04
21M
21.00 mi14:10:573:19:549:3110:06
10:06
+0:22
35K
21.75 mi14:17:453:26:429:306:48
9:05
-1:01
23M
23.00 mi14:29:463:38:439:3112:01
9:36
+0:31
24M
24.00 mi14:39:023:47:599:309:16
9:16
-0:20
40K
24.85 mi14:47:113:56:089:308:09
9:32
+0:16
25.2M
25.20 mi14:50:473:59:449:313:36
10:26
+0:54
Finish
26.22 mi14:59:584:08:559:309:11
9:01
-1:25

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

9:01 /mi

Average Pace

9:30 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:55:13

94% of race

Time at Steady Pace

13:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:30 /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 mi11:19:0928:069:0328:06
9:03
#20257
10K
6.21 mi11:48:0357:009:1028:54
9:18
#20554
15K
9.32 mi12:17:471:26:449:1829:44
9:34
#20665
20K
12.43 mi12:47:371:56:349:2329:50
9:36
#20363
Half
13.11 mi12:53:542:02:519:226:17
9:13
#20298
25K
15.53 mi13:17:102:26:079:2423:16
9:36
#19882
30K
18.64 mi13:47:382:56:359:2830:28
9:48
#19280
20M
20.00 mi14:00:513:09:489:2913:13
9:44
#18985
21M
21.00 mi14:10:573:19:549:3110:06
10:06
#18651
35K
21.75 mi14:17:453:26:429:306:48
9:05
#18469
23M
23.00 mi14:29:463:38:439:3112:01
9:36
#18184
24M
24.00 mi14:39:023:47:599:309:16
9:16
#17980
40K
24.85 mi14:47:113:56:089:308:09
9:32
#17799
25.2M
25.20 mi14:50:473:59:449:313:36
10:26
#17706
Finish
26.22 mi14:59:584:08:559:309:11
9:01
#17557
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi202578013801320874(Top 82%)8259(Top 76%)8259(Top 512%)
10K6.21 mi3.10 mi20554-2978145-1328145-13220794(Top 81%)8251(Top 76%)8251(Top 512%)
15K9.32 mi3.11 mi20665-1118175-308175-3020874(Top 82%)8259(Top 76%)8259(Top 512%)
20K12.43 mi3.11 mi20363+3028013+1628013+16219513(Top 76%)7549(Top 69%)7549(Top 468%)
Half13.11 mi0.68 mi20298+657976+377976+3719127(Top 75%)7405(Top 68%)7405(Top 459%)
25K15.53 mi2.42 mi19882+4167775+2017775+20117861(Top 70%)6746(Top 62%)6746(Top 418%)
30K18.64 mi3.11 mi19280+6027527+2487527+24816669(Top 65%)6332(Top 58%)6332(Top 393%)
20M20.00 mi1.36 mi18985+2957394+1337394+13315486(Top 61%)5952(Top 54%)5952(Top 369%)
21M21.00 mi1.00 mi18651+3347234+1607234+16013407(Top 52%)5001(Top 46%)5001(Top 310%)
35K21.75 mi0.75 mi18469+1827152+827152+8213810(Top 54%)5239(Top 48%)5239(Top 325%)
23M23.00 mi1.25 mi18184+2857025+1277025+12713939(Top 55%)5390(Top 49%)5390(Top 334%)
24M24.00 mi1.00 mi17980+2046943+826943+8213434(Top 53%)5152(Top 47%)5152(Top 319%)
40K24.85 mi0.85 mi17799+1816870+736870+7313276(Top 52%)5191(Top 48%)5191(Top 322%)
25.2M25.20 mi0.35 mi17706+936832+386832+3812665(Top 50%)4954(Top 45%)4954(Top 307%)
Finish26.22 mi1.02 mi17557+1496782+506782+5014302(Top 56%)5634(Top 52%)5634(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

20874

Females

8259

F40-44

8259

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

20794

Females

8251

F40-44

8251

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

20874

Females

8259

F40-44

8259

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

19513

Females

7549

F40-44

7549

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

19127

Females

7405

F40-44

7405

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

17861

Females

6746

F40-44

6746

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

16669

Females

6332

F40-44

6332

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

15486

Females

5952

F40-44

5952

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13407

Females

5001

F40-44

5001

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

13810

Females

5239

F40-44

5239

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

13939

Females

5390

F40-44

5390

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13434

Females

5152

F40-44

5152

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13276

Females

5191

F40-44

5191

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

12665

Females

4954

F40-44

4954

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14302

Females

5634

F40-44

5634

Passing Analysis

Category:
Athletes Passed
3525
Passed By
825
Net Change
+2700
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20257
5K → 10K157454-297#20257#20554
10K → 15K166277-111#20554#20665
15K → 20K35351+302#20665#20363
20K → Half705+65#20363#20298
Half → 25K42711+416#20298#19882
25K → 30K6097+602#19882#19280
30K → 20M2972+295#19280#18985
20M → 21M3340+334#18985#18651
21M → 35K1820+182#18651#18469
35K → 23M2894+285#18469#18184
23M → 24M2073+204#18184#17980
24M → 40K1854+181#17980#17799
40K → 25.2M952+93#17799#17706
25.2M → Finish1545+149#17706#17557
TOTALS3525825+2700
📊

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