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BOSTON MARATHON 2024

Zhonglan Shen

Bib: 19054•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 46%
Gender (Female)
#0 / 10924
Top 32%
Masters (Masters Women)
#0 / 6263
Top 20%
Division (F55-59)
#0 / 876
Top 6%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:00
Rank: #14998
Start → 5K
25:00 | 8:03/mi
10K· 6.21 mi
49:54
Rank: #14636 (+362)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:14:51
Rank: #14268 (+368)
10K → 15K
24:57 | 8:02/mi
20K· 12.43 mi
1:40:25
Rank: #13943 (+325)
15K → 20K
25:34 | 8:14/mi
Half· 13.11 mi
1:45:51
Rank: #13844 (+99)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:05:49
Rank: #13417 (+427)
Half → 25K
19:58 | 8:14/mi
30K· 18.64 mi
2:32:02
Rank: #12696 (+721)
25K → 30K
26:13 | 8:26/mi
20M
2:43:42
Rank: #12436 (+260)
30K → 20M
11:40 | 8:35/mi
21M
2:53:07
Rank: #12267 (+169)
20M → 21M
9:25 | 9:25/mi
35K· 21.75 mi
2:59:54
Rank: #12299 (-32)
21M → 35K
6:47 | 9:04/mi
23M
3:10:42
Rank: #12055 (+244)
35K → 23M
10:48 | 8:38/mi
24M
3:19:14
Rank: #11920 (+135)
23M → 24M
8:32 | 8:32/mi
40K· 24.85 mi
3:26:38
Rank: #11759 (+161)
24M → 40K
7:24 | 8:39/mi
25.2M
3:29:56
Rank: #11695 (+64)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:38:35
Rank: #11637 (+58)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:51
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:52:44
Pace8:36 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3725:008:0325:00
8:03
-
10K
6.21 mi11:43:3149:548:0224:54
8:01
-0:02
15K
9.32 mi12:08:281:14:518:0224:57
8:02
+0:01
20K
12.43 mi12:34:021:40:258:0525:34
8:14
+0:12
Half
13.11 mi12:39:281:45:518:045:26
7:58
-0:16
25K
15.53 mi12:59:262:05:498:0619:58
8:14
+0:16
30K
18.64 mi13:25:392:32:028:0926:13
8:26
+0:12
20M
20.00 mi13:37:192:43:428:1111:40
8:35
+0:09
21M
21.00 mi13:46:442:53:078:159:25
9:25
+0:50
35K
21.75 mi13:53:312:59:548:166:47
9:04
-0:21
23M
23.00 mi14:04:193:10:428:1710:48
8:38
-0:26
24M
24.00 mi14:12:513:19:148:188:32
8:32
-0:06
40K
24.85 mi14:20:153:26:388:197:24
8:39
+0:07
25.2M
25.20 mi14:23:333:29:568:203:18
9:34
+0:55
Finish
26.22 mi14:32:123:38:358:218:39
8:29
-1:05

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

7:58 /mi

Average Pace

8:21 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:49

58% of race

Time at Steady Pace

1:13:16

34% of race

Time at Slower Pace

19:30

9% of race

Average Pace: 8:20 /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 mi11:18:3725:008:0325:00
8:03
#14998
10K
6.21 mi11:43:3149:548:0224:54
8:01
#14636
15K
9.32 mi12:08:281:14:518:0224:57
8:02
#14268
20K
12.43 mi12:34:021:40:258:0525:34
8:14
#13943
Half
13.11 mi12:39:281:45:518:045:26
7:58
#13844
25K
15.53 mi12:59:262:05:498:0619:58
8:14
#13417
30K
18.64 mi13:25:392:32:028:0926:13
8:26
#12696
20M
20.00 mi13:37:192:43:428:1111:40
8:35
#12436
21M
21.00 mi13:46:442:53:078:159:25
9:25
#12267
35K
21.75 mi13:53:312:59:548:166:47
9:04
#12299
23M
23.00 mi14:04:193:10:428:1710:48
8:38
#12055
24M
24.00 mi14:12:513:19:148:188:32
8:32
#11920
40K
24.85 mi14:20:153:26:388:197:24
8:39
#11759
25.2M
25.20 mi14:23:333:29:568:203:18
9:34
#11695
Finish
26.22 mi14:32:123:38:358:218:39
8:29
#11637
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi149984942494213669(Top 53%)4165(Top 38%)4165(Top 475%)
10K6.21 mi3.10 mi14636+3624713+2294713+22914322(Top 56%)4521(Top 41%)4521(Top 516%)
15K9.32 mi3.11 mi14268+3684492+2214492+22113669(Top 53%)4165(Top 38%)4165(Top 475%)
20K12.43 mi3.11 mi13943+3254327+1654327+16513308(Top 52%)4010(Top 37%)4010(Top 458%)
Half13.11 mi0.68 mi13844+994269+584269+5812540(Top 49%)3617(Top 33%)3617(Top 413%)
25K15.53 mi2.42 mi13417+4274045+2244045+22411589(Top 45%)3283(Top 30%)3283(Top 375%)
30K18.64 mi3.11 mi12696+7213731+3143731+31410332(Top 40%)2865(Top 26%)2865(Top 327%)
20M20.00 mi1.36 mi12436+2603647+843647+849931(Top 39%)2913(Top 27%)2913(Top 333%)
21M21.00 mi1.00 mi12267+1693619+283619+2810461(Top 41%)3465(Top 32%)3465(Top 396%)
35K21.75 mi0.75 mi12299-323678-593678-5913634(Top 53%)5127(Top 47%)5127(Top 585%)
23M23.00 mi1.25 mi12055+2443599+793599+799163(Top 36%)2961(Top 27%)2961(Top 338%)
24M24.00 mi1.00 mi11920+1353575+243575+249690(Top 38%)3282(Top 30%)3282(Top 375%)
40K24.85 mi0.85 mi11759+1613538+373538+379194(Top 36%)3188(Top 29%)3188(Top 364%)
25.2M25.20 mi0.35 mi11695+643522+163522+169082(Top 36%)3200(Top 29%)3200(Top 365%)
Finish26.22 mi1.02 mi11637+583533-113533-1111465(Top 45%)4206(Top 39%)4206(Top 480%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

13669

Females

4165

F55-59

4165

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14322

Females

4521

F55-59

4521

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

13669

Females

4165

F55-59

4165

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13308

Females

4010

F55-59

4010

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

12540

Females

3617

F55-59

3617

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11589

Females

3283

F55-59

3283

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10332

Females

2865

F55-59

2865

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

9931

Females

2913

F55-59

2913

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10461

Females

3465

F55-59

3465

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

13634

Females

5127

F55-59

5127

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9163

Females

2961

F55-59

2961

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

9690

Females

3282

F55-59

3282

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9194

Females

3188

F55-59

3188

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9082

Females

3200

F55-59

3200

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11465

Females

4206

F55-59

4206

Passing Analysis

Category:
Athletes Passed
4016
Passed By
655
Net Change
+3361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14998
5K → 10K492130+362#14998#14636
10K → 15K44981+368#14636#14268
15K → 20K41691+325#14268#13943
20K → Half1056+99#13943#13844
Half → 25K45326+427#13844#13417
25K → 30K74625+721#13417#12696
30K → 20M28121+260#12696#12436
20M → 21M21243+169#12436#12267
21M → 35K6799-32#12267#12299
35K → 23M26622+244#12299#12055
23M → 24M15924+135#12055#11920
24M → 40K18019+161#11920#11759
40K → 25.2M7814+64#11759#11695
25.2M → Finish11254+58#11695#11637
TOTALS4016655+3361
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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