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BOSTON MARATHON 2024

Lia Cheng

Bib: 15439•F

NY

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:48
Rank: #18467
Start → 5K
26:48 | 8:38/mi
10K· 6.21 mi
54:20
Rank: #18828 (-361)
5K → 10K
27:32 | 8:52/mi
15K· 9.32 mi
1:22:02
Rank: #18702 (+126)
10K → 15K
27:42 | 8:55/mi
20K· 12.43 mi
1:50:03
Rank: #18286 (+416)
15K → 20K
28:01 | 9:01/mi
Half· 13.11 mi
1:56:04
Rank: #18231 (+55)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:18:02
Rank: #17773 (+458)
Half → 25K
21:58 | 9:04/mi
30K· 18.64 mi
2:47:32
Rank: #17306 (+467)
25K → 30K
29:30 | 9:30/mi
20M
3:00:34
Rank: #17123 (+183)
30K → 20M
13:02 | 9:35/mi
21M
3:10:49
Rank: #16935 (+188)
20M → 21M
10:15 | 10:15/mi
35K· 21.75 mi
3:17:59
Rank: #16874 (+61)
21M → 35K
7:10 | 9:35/mi
23M
3:30:01
Rank: #16712 (+162)
35K → 23M
12:02 | 9:37/mi
24M
3:39:15
Rank: #16554 (+158)
23M → 24M
9:14 | 9:14/mi
40K· 24.85 mi
3:47:06
Rank: #16328 (+226)
24M → 40K
7:51 | 9:11/mi
25.2M
3:50:36
Rank: #16250 (+78)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:59:27
Rank: #16138 (+112)
25.2M → Finish
8:51 | 8:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:04
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:03:23
Pace9:25 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:0226:488:3826:48
8:38
-
10K
6.21 mi11:27:3454:208:4527:32
8:52
+0:14
15K
9.32 mi11:55:161:22:028:4827:42
8:55
+0:03
20K
12.43 mi12:23:171:50:038:5128:01
9:01
+0:06
Half
13.11 mi12:29:181:56:048:516:01
8:49
-0:12
25K
15.53 mi12:51:162:18:028:5321:58
9:04
+0:15
30K
18.64 mi13:20:462:47:328:5929:30
9:30
+0:26
20M
20.00 mi13:33:483:00:349:0213:02
9:35
+0:05
21M
21.00 mi13:44:033:10:499:0510:15
10:15
+0:40
35K
21.75 mi13:51:133:17:599:067:10
9:35
-0:40
23M
23.00 mi14:03:153:30:019:0812:02
9:37
+0:02
24M
24.00 mi14:12:293:39:159:089:14
9:14
-0:23
40K
24.85 mi14:20:203:47:069:087:51
9:11
-0:03
25.2M
25.20 mi14:23:503:50:369:093:30
10:09
+0:58
Finish
26.22 mi14:32:413:59:279:088:51
8:41
-1:28

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

8:38 /mi

Average Pace

9:08 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:58

68% of race

Time at Steady Pace

1:05:14

27% of race

Time at Slower Pace

10:15

4% of race

Average Pace: 9:08 /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 mi11:00:0226:488:3826:48
8:38
#18467
10K
6.21 mi11:27:3454:208:4527:32
8:52
#18828
15K
9.32 mi11:55:161:22:028:4827:42
8:55
#18702
20K
12.43 mi12:23:171:50:038:5128:01
9:01
#18286
Half
13.11 mi12:29:181:56:048:516:01
8:49
#18231
25K
15.53 mi12:51:162:18:028:5321:58
9:04
#17773
30K
18.64 mi13:20:462:47:328:5929:30
9:30
#17306
20M
20.00 mi13:33:483:00:349:0213:02
9:35
#17123
21M
21.00 mi13:44:033:10:499:0510:15
10:15
#16935
35K
21.75 mi13:51:133:17:599:067:10
9:35
#16874
23M
23.00 mi14:03:153:30:019:0812:02
9:37
#16712
24M
24.00 mi14:12:293:39:159:089:14
9:14
#16554
40K
24.85 mi14:20:203:47:069:087:51
9:11
#16328
25.2M
25.20 mi14:23:503:50:369:093:30
10:09
#16250
Finish
26.22 mi14:32:413:59:279:088:51
8:41
#16138
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi184677036703618513(Top 72%)6978(Top 64%)6978(Top 150%)
10K6.21 mi3.10 mi18828-3617233-1977233-19719165(Top 75%)7379(Top 68%)7379(Top 158%)
15K9.32 mi3.11 mi18702+1267134+997134+9918513(Top 72%)6978(Top 64%)6978(Top 150%)
20K12.43 mi3.11 mi18286+4166885+2496885+24917421(Top 68%)6386(Top 58%)6386(Top 137%)
Half13.11 mi0.68 mi18231+556864+216864+2117454(Top 68%)6487(Top 59%)6487(Top 139%)
25K15.53 mi2.42 mi17773+4586642+2226642+22215774(Top 62%)5593(Top 51%)5593(Top 120%)
30K18.64 mi3.11 mi17306+4676433+2096433+20915444(Top 60%)5665(Top 52%)5665(Top 122%)
20M20.00 mi1.36 mi17123+1836358+756358+7514919(Top 58%)5630(Top 52%)5630(Top 121%)
21M21.00 mi1.00 mi16935+1886295+636295+6313950(Top 55%)5291(Top 48%)5291(Top 114%)
35K21.75 mi0.75 mi16874+616272+236272+2315792(Top 62%)6238(Top 57%)6238(Top 134%)
23M23.00 mi1.25 mi16712+1626204+686204+6813985(Top 55%)5412(Top 50%)5412(Top 116%)
24M24.00 mi1.00 mi16554+1586146+586146+5813283(Top 52%)5074(Top 46%)5074(Top 109%)
40K24.85 mi0.85 mi16328+2266053+936053+9311738(Top 46%)4419(Top 40%)4419(Top 95%)
25.2M25.20 mi0.35 mi16250+786027+266027+2611608(Top 45%)4412(Top 40%)4412(Top 95%)
Finish26.22 mi1.02 mi16138+1125986+415986+4112582(Top 49%)4768(Top 44%)4768(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

18513

Females

6978

F18-39

6978

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19165

Females

7379

F18-39

7379

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

18513

Females

6978

F18-39

6978

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

17421

Females

6386

F18-39

6386

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

17454

Females

6487

F18-39

6487

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

15774

Females

5593

F18-39

5593

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15444

Females

5665

F18-39

5665

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

14919

Females

5630

F18-39

5630

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

13950

Females

5291

F18-39

5291

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

15792

Females

6238

F18-39

6238

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

13985

Females

5412

F18-39

5412

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13283

Females

5074

F18-39

5074

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

11738

Females

4419

F18-39

4419

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11608

Females

4412

F18-39

4412

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12582

Females

4768

F18-39

4768

Passing Analysis

Category:
Athletes Passed
3322
Passed By
993
Net Change
+2329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18467
5K → 10K167528-361#18467#18828
10K → 15K275149+126#18828#18702
15K → 20K48266+416#18702#18286
20K → Half6813+55#18286#18231
Half → 25K47618+458#18231#17773
25K → 30K53265+467#17773#17306
30K → 20M20522+183#17306#17123
20M → 21M20921+188#17123#16935
21M → 35K9231+61#16935#16874
35K → 23M19129+162#16874#16712
23M → 24M17315+158#16712#16554
24M → 40K2326+226#16554#16328
40K → 25.2M813+78#16328#16250
25.2M → Finish13927+112#16250#16138
TOTALS3322993+2329
📊

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