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BOSTON MARATHON 2024

Ling Chun Lai

Bib: 23088 F TW

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F55-59)
#0 / 876
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:27/mi
29:22
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:46/mi
59:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:57/mi
1:30:37
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:17/mi
2:02:33
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:54/mi
2:09:59
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:50/mi
2:36:14
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:37/mi
3:12:19
↑ 181↓ 1480.2%
138 ft elev
20M
11:17/mi
3:27:39
↑ 64↓ 500.2%
148 ft elev
21M
12:34/mi
3:40:13
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:07/mi
3:48:32
↑ 17↓ 861.7%
156 ft elev
23M
11:37/mi
4:03:05
↑ 23↓ 630.6%
116 ft elev
24M
11:32/mi
4:14:37
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:44/mi
4:24:39
↓ 200.3%
20 ft elev
25.2M
13:09/mi
4:29:11
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:38/mi
4:40:01
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:59
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:30:02
Pace11:27 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:5029:229:2729:22
9:27
-
10K
6.21 mi12:00:1159:439:3730:21
9:46
+0:19
15K
9.32 mi12:31:051:30:379:4330:54
9:57
+0:11
20K
12.43 mi13:03:012:02:339:5231:56
10:17
+0:20
Half
13.11 mi13:10:272:09:599:557:26
10:54
+0:37
25K
15.53 mi13:36:422:36:1410:0326:15
10:50
-0:04
30K
18.64 mi14:12:473:12:1910:1936:05
11:37
+0:47
20M
20.00 mi14:28:073:27:3910:2315:20
11:17
-0:20
21M
21.00 mi14:40:413:40:1310:2912:34
12:34
+1:17
35K
21.75 mi14:49:003:48:3210:308:19
11:07
-1:27
23M
23.00 mi15:03:334:03:0510:3414:33
11:37
+0:30
24M
24.00 mi15:15:054:14:3710:3711:32
11:32
-0:05
40K
24.85 mi15:25:074:24:3910:3910:02
11:44
+0:12
25.2M
25.20 mi15:29:394:29:1110:414:32
13:09
+1:25
Finish
26.22 mi15:40:294:40:0110:4110:50
10:38
-2:31

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

9:27 /mi

Average Pace

10:41 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:33

44% of race

Time at Steady Pace

1:19:42

28% of race

Time at Slower Pace

1:17:46

28% of race

Average Pace: 10:41 /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 mi11:29:5029:229:2729:22
9:27
#21594
10K
6.21 mi12:00:1159:439:3730:21
9:46
#21847
15K
9.32 mi12:31:051:30:379:4330:54
9:57
#21815
20K
12.43 mi13:03:012:02:339:5231:56
10:17
#21643
Half
13.11 mi13:10:272:09:599:557:26
10:54
#21746
25K
15.53 mi13:36:422:36:1410:0326:15
10:50
#21624
30K
18.64 mi14:12:473:12:1910:1936:05
11:37
#21527
20M
20.00 mi14:28:073:27:3910:2315:20
11:17
#21397
21M
21.00 mi14:40:413:40:1310:2912:34
12:34
#21323
35K
21.75 mi14:49:003:48:3210:308:19
11:07
#21274
23M
23.00 mi15:03:334:03:0510:3414:33
11:37
#21199
24M
24.00 mi15:15:054:14:3710:3711:32
11:32
#21140
40K
24.85 mi15:25:074:24:3910:3910:02
11:44
#21086
25.2M
25.20 mi15:29:394:29:1110:414:32
13:09
#21075
Finish
26.22 mi15:40:294:40:0110:4110:50
10:38
#21041
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi215948709870921807(Top 85%)8767(Top 80%)8767(Top 1001%)
10K6.21 mi3.10 mi21847-2538832-1238832-12322019(Top 86%)8923(Top 82%)8923(Top 1019%)
15K9.32 mi3.11 mi21815+328802+308802+3021807(Top 85%)8767(Top 80%)8767(Top 1001%)
20K12.43 mi3.11 mi21643+1728720+828720+8221196(Top 83%)8467(Top 78%)8467(Top 967%)
Half13.11 mi0.68 mi21746-1038775-558775-5523361(Top 91%)9692(Top 89%)9692(Top 1106%)
25K15.53 mi2.42 mi21624+1228714+618714+6121143(Top 83%)8556(Top 78%)8556(Top 977%)
30K18.64 mi3.11 mi21527+978721-78721-721249(Top 83%)8763(Top 80%)8763(Top 1000%)
20M20.00 mi1.36 mi21397+1308680+418680+4119951(Top 78%)8195(Top 75%)8195(Top 936%)
21M21.00 mi1.00 mi21323+748656+248656+2420002(Top 78%)8331(Top 76%)8331(Top 951%)
35K21.75 mi0.75 mi21274+498648+88648+820080(Top 79%)8386(Top 77%)8386(Top 957%)
23M23.00 mi1.25 mi21199+758640+88640+819931(Top 78%)8363(Top 77%)8363(Top 955%)
24M24.00 mi1.00 mi21140+598625+158625+1520505(Top 80%)8683(Top 79%)8683(Top 991%)
40K24.85 mi0.85 mi21086+548610+158610+1519889(Top 78%)8447(Top 77%)8447(Top 964%)
25.2M25.20 mi0.35 mi21075+118612-28612-220017(Top 78%)8530(Top 78%)8530(Top 974%)
Finish26.22 mi1.02 mi21041+348605+78605+720392(Top 80%)8674(Top 79%)8674(Top 990%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

21807

Females

8767

F55-59

8767

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22019

Females

8923

F55-59

8923

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

21807

Females

8767

F55-59

8767

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

21196

Females

8467

F55-59

8467

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

23361

Females

9692

F55-59

9692

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21143

Females

8556

F55-59

8556

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

21249

Females

8763

F55-59

8763

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

19951

Females

8195

F55-59

8195

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20002

Females

8331

F55-59

8331

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20080

Females

8386

F55-59

8386

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

19931

Females

8363

F55-59

8363

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

20505

Females

8683

F55-59

8683

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

19889

Females

8447

F55-59

8447

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20017

Females

8530

F55-59

8530

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

20392

Females

8674

F55-59

8674

Passing Analysis

Category:
Athletes Passed
1751
Passed By
1198
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21594
5K → 10K137390-253#21594#21847
10K → 15K190158+32#21847#21815
15K → 20K26997+172#21815#21643
20K → Half11114-103#21643#21746
Half → 25K20583+122#21746#21624
25K → 30K230133+97#21624#21527
30K → 20M15222+130#21527#21397
20M → 21M10632+74#21397#21323
21M → 35K7526+49#21323#21274
35K → 23M10631+75#21274#21199
23M → 24M9334+59#21199#21140
24M → 40K7925+54#21140#21086
40K → 25.2M2514+11#21086#21075
25.2M → Finish7339+34#21075#21041
TOTALS17511198+553
📊

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