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BOSTON MARATHON 2024

Lan Shen

Bib: 12300•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 49%
Division (F50-54)
#0 / 1187
Top 45%
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
8:06/mi
25:10
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
50:59
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:17:15
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:44:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:50:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:11:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:27/mi
2:41:15
↑ 181↓ 1480.2%
20M
9:55/mi
2:54:44
↑ 64↓ 500.2%
21M
11:06/mi
3:05:50
↑ 106↓ 241.6%
35K· 21.75 mi
11:54/mi
3:14:44
↑ 17↓ 861.7%
23M
10:06/mi
3:27:23
↑ 23↓ 630.6%
24M
9:22/mi
3:36:45
↓ 821.3%
40K· 24.85 mi
11:22/mi
3:46:28
↓ 200.3%
25.2M
12:40/mi
3:50:50
↑ 13↓ 160.2%
Finish· 26.22 mi
9:32/mi
4:00:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:02
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time2:10:31
Pace9:57 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0425:108:0625:10
8:06
-
10K
6.21 mi11:19:5350:598:1225:49
8:19
+0:13
15K
9.32 mi11:46:091:17:158:1726:16
8:27
+0:08
20K
12.43 mi12:13:041:44:108:2326:55
8:40
+0:13
Half
13.11 mi12:18:561:50:028:245:52
8:36
-0:04
25K
15.53 mi12:40:482:11:548:2921:52
9:01
+0:25
30K
18.64 mi13:10:092:41:158:3929:21
9:27
+0:26
20M
20.00 mi13:23:382:54:448:4413:29
9:55
+0:28
21M
21.00 mi13:34:443:05:508:5111:06
11:06
+1:11
35K
21.75 mi13:43:383:14:448:578:54
11:54
+0:48
23M
23.00 mi13:56:173:27:239:0112:39
10:06
-1:48
24M
24.00 mi14:05:393:36:459:029:22
9:22
-0:44
40K
24.85 mi14:15:223:46:289:079:43
11:22
+2:00
25.2M
25.20 mi14:19:443:50:509:104:22
12:40
+1:18
Finish
26.22 mi14:29:274:00:339:119:43
9:32
-3:08

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

8:06 /mi

Average Pace

9:11 /mi

Slowest Pace

12:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:02

46% of race

Time at Steady Pace

1:36:26

40% of race

Time at Slower Pace

34:05

14% of race

Average Pace: 9:10 /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 mi10:54:0425:108:0625:10
8:06
#15395
10K
6.21 mi11:19:5350:598:1225:49
8:19
#15790
15K
9.32 mi11:46:091:17:158:1726:16
8:27
#15834
20K
12.43 mi12:13:041:44:108:2326:55
8:40
#15728
Half
13.11 mi12:18:561:50:028:245:52
8:36
#15767
25K
15.53 mi12:40:482:11:548:2921:52
9:01
#15716
30K
18.64 mi13:10:092:41:158:3929:21
9:27
#15629
20M
20.00 mi13:23:382:54:448:4413:29
9:55
#15697
21M
21.00 mi13:34:443:05:508:5111:06
11:06
#15811
35K
21.75 mi13:43:383:14:448:578:54
11:54
#16202
23M
23.00 mi13:56:173:27:239:0112:39
10:06
#16199
24M
24.00 mi14:05:393:36:459:029:22
9:22
#16066
40K
24.85 mi14:15:223:46:289:079:43
11:22
#16224
25.2M
25.20 mi14:19:443:50:509:104:22
12:40
#16293
Finish
26.22 mi14:29:274:00:339:119:43
9:32
#16320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi153955188518816160(Top 63%)5658(Top 52%)5658(Top 477%)
10K6.21 mi3.10 mi15790-3955407-2195407-21916190(Top 63%)5641(Top 52%)5641(Top 475%)
15K9.32 mi3.11 mi15834-445466-595466-5916160(Top 63%)5658(Top 52%)5658(Top 477%)
20K12.43 mi3.11 mi15728+1065409+575409+5715673(Top 61%)5387(Top 49%)5387(Top 454%)
Half13.11 mi0.68 mi15767-395433-245433-2416315(Top 64%)5823(Top 53%)5823(Top 491%)
25K15.53 mi2.42 mi15716+515436-35436-315602(Top 61%)5503(Top 50%)5503(Top 464%)
30K18.64 mi3.11 mi15629+875452-165452-1615258(Top 60%)5555(Top 51%)5555(Top 468%)
20M20.00 mi1.36 mi15697-685535-835535-8316208(Top 63%)6316(Top 58%)6316(Top 532%)
21M21.00 mi1.00 mi15811-1145648-1135648-11316610(Top 65%)6651(Top 61%)6651(Top 560%)
35K21.75 mi0.75 mi16202-3915894-2465894-24621612(Top 85%)9150(Top 84%)9150(Top 771%)
23M23.00 mi1.25 mi16199+35918-245918-2415814(Top 62%)6303(Top 58%)6303(Top 531%)
24M24.00 mi1.00 mi16066+1335880+385880+3813898(Top 54%)5395(Top 49%)5395(Top 455%)
40K24.85 mi0.85 mi16224-1585995-1155995-11519018(Top 74%)8016(Top 73%)8016(Top 675%)
25.2M25.20 mi0.35 mi16293-696048-536048-5318929(Top 74%)7959(Top 73%)7959(Top 671%)
Finish26.22 mi1.02 mi16320-276098-506098-5016701(Top 65%)6864(Top 63%)6864(Top 578%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16160

Females

5658

F50-54

5658

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16190

Females

5641

F50-54

5641

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16160

Females

5658

F50-54

5658

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

15673

Females

5387

F50-54

5387

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16315

Females

5823

F50-54

5823

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

15602

Females

5503

F50-54

5503

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15258

Females

5555

F50-54

5555

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16208

Females

6316

F50-54

6316

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16610

Females

6651

F50-54

6651

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

21612

Females

9150

F50-54

9150

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

15814

Females

6303

F50-54

6303

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

13898

Females

5395

F50-54

5395

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19018

Females

8016

F50-54

8016

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

18929

Females

7959

F50-54

7959

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

16701

Females

6864

F50-54

6864

Passing Analysis

Category:
Athletes Passed
1798
Passed By
2723
Net Change
-925
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15395
5K → 10K145540-395#15395#15790
10K → 15K222266-44#15790#15834
15K → 20K293187+106#15834#15728
20K → Half2160-39#15728#15767
Half → 25K236185+51#15767#15716
25K → 30K295208+87#15716#15629
30K → 20M96164-68#15629#15697
20M → 21M84198-114#15697#15811
21M → 35K18409-391#15811#16202
35K → 23M105102+3#16202#16199
23M → 24M14916+133#16199#16066
24M → 40K42200-158#16066#16224
40K → 25.2M2493-69#16224#16293
25.2M → Finish6895-27#16293#16320
TOTALS17982723-925
📊

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