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BOSTON MARATHON 2024

Chiayi Lin

Bib: 21481•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
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
8:37/mi
26:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:01/mi
1:21:33
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
1:52:02
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
1:58:16
↑ 19↓ 370.5%
25K· 15.53 mi
11:20/mi
2:25:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:35/mi
2:58:36
↑ 181↓ 1480.2%
20M
11:00/mi
3:13:33
↑ 64↓ 500.2%
21M
13:22/mi
3:26:55
↑ 106↓ 241.6%
35K· 21.75 mi
11:23/mi
3:35:26
↑ 17↓ 861.7%
23M
11:29/mi
3:49:49
↑ 23↓ 630.6%
24M
11:45/mi
4:01:34
↓ 821.3%
40K· 24.85 mi
11:18/mi
4:11:14
↓ 200.3%
25.2M
12:46/mi
4:15:38
↑ 13↓ 160.2%
Finish· 26.22 mi
9:35/mi
4:25:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:16
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:27:08
Pace11:13 /mi
📊Positive Split: 24.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5726:468:3726:46
8:37
-
10K
6.21 mi11:49:4353:328:3726:46
8:37
0:00
15K
9.32 mi12:17:441:21:338:4528:01
9:01
+0:24
20K
12.43 mi12:48:131:52:029:0130:29
9:49
+0:48
Half
13.11 mi12:54:271:58:169:016:14
9:08
-0:41
25K
15.53 mi13:21:552:25:449:2327:28
11:20
+2:12
30K
18.64 mi13:54:472:58:369:3532:52
10:35
-0:45
20M
20.00 mi14:09:443:13:339:4114:57
11:00
+0:25
21M
21.00 mi14:23:063:26:559:5113:22
13:22
+2:22
35K
21.75 mi14:31:373:35:269:548:31
11:23
-1:59
23M
23.00 mi14:46:003:49:4910:0014:23
11:29
+0:06
24M
24.00 mi14:57:454:01:3410:0411:45
11:45
+0:16
40K
24.85 mi15:07:254:11:1410:069:40
11:18
-0:27
25.2M
25.20 mi15:11:494:15:3810:094:24
12:46
+1:28
Finish
26.22 mi15:21:354:25:2410:089:46
9:35
-3:11

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

8:37 /mi

Average Pace

10:08 /mi

Slowest Pace

13:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:02

48% of race

Time at Steady Pace

1:47:51

41% of race

Time at Slower Pace

29:31

11% of race

Average Pace: 10:07 /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 mi11:22:5726:468:3726:46
8:37
#18417
10K
6.21 mi11:49:4353:328:3726:46
8:37
#18173
15K
9.32 mi12:17:441:21:338:4528:01
9:01
#18449
20K
12.43 mi12:48:131:52:029:0130:29
9:49
#19020
Half
13.11 mi12:54:271:58:169:016:14
9:08
#18998
25K
15.53 mi13:21:552:25:449:2327:28
11:20
#19798
30K
18.64 mi13:54:472:58:369:3532:52
10:35
#19615
20M
20.00 mi14:09:443:13:339:4114:57
11:00
#19582
21M
21.00 mi14:23:063:26:559:5113:22
13:22
#19681
35K
21.75 mi14:31:373:35:269:548:31
11:23
#19710
23M
23.00 mi14:46:003:49:4910:0014:23
11:29
#19707
24M
24.00 mi14:57:454:01:3410:0411:45
11:45
#19758
40K
24.85 mi15:07:254:11:1410:069:40
11:18
#19712
25.2M
25.20 mi15:11:494:15:3810:094:24
12:46
#19701
Finish
26.22 mi15:21:354:25:2410:089:46
9:35
#19595
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi184177007700719000(Top 74%)7250(Top 66%)7250(Top 611%)
10K6.21 mi3.10 mi18173+2446849+1586849+15817952(Top 70%)6698(Top 61%)6698(Top 564%)
15K9.32 mi3.11 mi18449-2766995-1466995-14619000(Top 74%)7250(Top 66%)7250(Top 611%)
20K12.43 mi3.11 mi19020-5717304-3097304-30920086(Top 79%)7863(Top 72%)7863(Top 662%)
Half13.11 mi0.68 mi18998+227292+127292+1218883(Top 74%)7273(Top 67%)7273(Top 613%)
25K15.53 mi2.42 mi19798-8007738-4467738-44622136(Top 87%)9074(Top 83%)9074(Top 764%)
30K18.64 mi3.11 mi19615+1837695+437695+4318972(Top 74%)7562(Top 69%)7562(Top 637%)
20M20.00 mi1.36 mi19582+337711-167711-1619305(Top 76%)7865(Top 72%)7865(Top 663%)
21M21.00 mi1.00 mi19681-997781-707781-7021338(Top 84%)8957(Top 82%)8957(Top 755%)
35K21.75 mi0.75 mi19710-297817-367817-3620616(Top 81%)8640(Top 79%)8640(Top 728%)
23M23.00 mi1.25 mi19707+37844-277844-2719615(Top 77%)8201(Top 75%)8201(Top 691%)
24M24.00 mi1.00 mi19758-517878-347878-3420923(Top 82%)8896(Top 81%)8896(Top 749%)
40K24.85 mi0.85 mi19712+467870+87870+818877(Top 74%)7950(Top 73%)7950(Top 670%)
25.2M25.20 mi0.35 mi19701+117871-17871-119182(Top 75%)8101(Top 74%)8101(Top 682%)
Finish26.22 mi1.02 mi19595+1067837+347837+3416894(Top 66%)6965(Top 64%)6965(Top 587%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19000

Females

7250

F50-54

7250

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

17952

Females

6698

F50-54

6698

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19000

Females

7250

F50-54

7250

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20086

Females

7863

F50-54

7863

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

18883

Females

7273

F50-54

7273

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

22136

Females

9074

F50-54

9074

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18972

Females

7562

F50-54

7562

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

19305

Females

7865

F50-54

7865

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

21338

Females

8957

F50-54

8957

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

20616

Females

8640

F50-54

8640

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

19615

Females

8201

F50-54

8201

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

20923

Females

8896

F50-54

8896

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

18877

Females

7950

F50-54

7950

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19182

Females

8101

F50-54

8101

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

16894

Females

6965

F50-54

6965

Passing Analysis

Category:
Athletes Passed
1628
Passed By
2806
Net Change
-1178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18417
5K → 10K417173+244#18417#18173
10K → 15K140416-276#18173#18449
15K → 20K122693-571#18449#19020
20K → Half4927+22#19020#18998
Half → 25K38838-800#18998#19798
25K → 30K27895+183#19798#19615
30K → 20M10774+33#19615#19582
20M → 21M45144-99#19582#19681
21M → 35K4978-29#19681#19710
35K → 23M9895+3#19710#19707
23M → 24M4394-51#19707#19758
24M → 40K9347+46#19758#19712
40K → 25.2M2817+11#19712#19701
25.2M → Finish12115+106#19701#19595
TOTALS16282806-1178
📊

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