Boston Marathon logo
BOSTON MARATHON 2024

Li-Hsin Lee

Bib: 19290•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
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

Start
0:00:00
Race begins
5K· 3.11 mi
27:42
Rank: #19749
Start → 5K
27:42 | 8:55/mi
10K· 6.21 mi
56:05
Rank: #20008 (-259)
5K → 10K
28:23 | 9:08/mi
15K· 9.32 mi
1:26:51
Rank: #20704 (-696)
10K → 15K
30:46 | 9:54/mi
20K· 12.43 mi
1:58:36
Rank: #20802 (-98)
15K → 20K
31:45 | 10:13/mi
Half· 13.11 mi
2:05:41
Rank: #20869 (-67)
20K → Half
7:05 | 10:23/mi
25K· 15.53 mi
2:31:46
Rank: #20883 (-14)
Half → 25K
26:05 | 10:45/mi
30K· 18.64 mi
3:05:55
Rank: #20694 (+189)
25K → 30K
34:09 | 11:00/mi
20M
3:20:17
Rank: #20484 (+210)
30K → 20M
14:22 | 10:34/mi
21M
3:32:32
Rank: #20441 (+43)
20M → 21M
12:15 | 12:15/mi
35K· 21.75 mi
3:39:51
Rank: #20298 (+143)
21M → 35K
7:19 | 9:47/mi
23M
3:52:03
Rank: #19974 (+324)
35K → 23M
12:12 | 9:45/mi
24M
4:01:23
Rank: #19731 (+243)
23M → 24M
9:20 | 9:20/mi
40K· 24.85 mi
4:09:35
Rank: #19511 (+220)
24M → 40K
8:12 | 9:35/mi
25.2M
4:12:51
Rank: #19375 (+136)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
4:21:51
Rank: #19181 (+194)
25.2M → Finish
9:00 | 8:50/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:41
Pace9:35 /mi
2nd Half
Distance13.11 mi
Time2:16:10
Pace10:23 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0427:428:5527:42
8:55
-
10K
6.21 mi12:11:2756:059:0228:23
9:08
+0:13
15K
9.32 mi12:42:131:26:519:1930:46
9:54
+0:46
20K
12.43 mi13:13:581:58:369:3331:45
10:13
+0:19
Half
13.11 mi13:21:032:05:419:357:05
10:23
+0:10
25K
15.53 mi13:47:082:31:469:4626:05
10:45
+0:22
30K
18.64 mi14:21:173:05:559:5834:09
11:00
+0:15
20M
20.00 mi14:35:393:20:1710:0114:22
10:34
-0:26
21M
21.00 mi14:47:543:32:3210:0712:15
12:15
+1:41
35K
21.75 mi14:55:133:39:5110:077:19
9:47
-2:28
23M
23.00 mi15:07:253:52:0310:0512:12
9:45
-0:02
24M
24.00 mi15:16:454:01:2310:039:20
9:20
-0:25
40K
24.85 mi15:24:574:09:3510:028:12
9:35
+0:15
25.2M
25.20 mi15:28:134:12:5110:023:16
9:28
-0:07
Finish
26.22 mi15:37:134:21:5110:009:00
8:50
-0:38

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

8:50 /mi

Average Pace

10:00 /mi

Slowest Pace

12:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:25

28% of race

Time at Steady Pace

1:33:30

36% of race

Time at Slower Pace

1:33:56

36% of race

Average Pace: 9:59 /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 mi11:43:0427:428:5527:42
8:55
#19749
10K
6.21 mi12:11:2756:059:0228:23
9:08
#20008
15K
9.32 mi12:42:131:26:519:1930:46
9:54
#20704
20K
12.43 mi13:13:581:58:369:3331:45
10:13
#20802
Half
13.11 mi13:21:032:05:419:357:05
10:23
#20869
25K
15.53 mi13:47:082:31:469:4626:05
10:45
#20883
30K
18.64 mi14:21:173:05:559:5834:09
11:00
#20694
20M
20.00 mi14:35:393:20:1710:0114:22
10:34
#20484
21M
21.00 mi14:47:543:32:3210:0712:15
12:15
#20441
35K
21.75 mi14:55:133:39:5110:077:19
9:47
#20298
23M
23.00 mi15:07:253:52:0310:0512:12
9:45
#19974
24M
24.00 mi15:16:454:01:2310:039:20
9:20
#19731
40K
24.85 mi15:24:574:09:3510:028:12
9:35
#19511
25.2M
25.20 mi15:28:134:12:5110:023:16
9:28
#19375
Finish
26.22 mi15:37:134:21:5110:009:00
8:50
#19181
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi197497739773921691(Top 85%)8697(Top 80%)8697(Top 733%)
10K6.21 mi3.10 mi20008-2597871-1327871-13220294(Top 79%)7981(Top 73%)7981(Top 672%)
15K9.32 mi3.11 mi20704-6968195-3248195-32421691(Top 85%)8697(Top 80%)8697(Top 733%)
20K12.43 mi3.11 mi20802-988250-558250-5521056(Top 82%)8389(Top 77%)8389(Top 707%)
Half13.11 mi0.68 mi20869-678286-368286-3622417(Top 88%)9176(Top 84%)9176(Top 773%)
25K15.53 mi2.42 mi20883-148318-328318-3221001(Top 82%)8465(Top 77%)8465(Top 713%)
30K18.64 mi3.11 mi20694+1898262+568262+5619977(Top 78%)8103(Top 74%)8103(Top 683%)
20M20.00 mi1.36 mi20484+2108182+808182+8018202(Top 71%)7313(Top 67%)7313(Top 616%)
21M21.00 mi1.00 mi20441+438180+28180+219355(Top 76%)7994(Top 73%)7994(Top 673%)
35K21.75 mi0.75 mi20298+1438129+518129+5116509(Top 65%)6621(Top 61%)6621(Top 558%)
23M23.00 mi1.25 mi19974+3247969+1607969+16014561(Top 57%)5699(Top 52%)5699(Top 480%)
24M24.00 mi1.00 mi19731+2437865+1047865+10413721(Top 54%)5305(Top 49%)5305(Top 447%)
40K24.85 mi0.85 mi19511+2207779+867779+8613505(Top 53%)5298(Top 48%)5298(Top 446%)
25.2M25.20 mi0.35 mi19375+1367704+757704+758723(Top 34%)3047(Top 28%)3047(Top 257%)
Finish26.22 mi1.02 mi19181+1947627+777627+7713384(Top 52%)5175(Top 47%)5175(Top 436%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

21691

Females

8697

F50-54

8697

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20294

Females

7981

F50-54

7981

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

21691

Females

8697

F50-54

8697

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21056

Females

8389

F50-54

8389

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

22417

Females

9176

F50-54

9176

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21001

Females

8465

F50-54

8465

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

19977

Females

8103

F50-54

8103

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18202

Females

7313

F50-54

7313

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

19355

Females

7994

F50-54

7994

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

16509

Females

6621

F50-54

6621

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

14561

Females

5699

F50-54

5699

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

13721

Females

5305

F50-54

5305

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

13505

Females

5298

F50-54

5298

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8723

Females

3047

F50-54

3047

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13384

Females

5175

F50-54

5175

Passing Analysis

Category:
Athletes Passed
2396
Passed By
1828
Net Change
+568
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19749
5K → 10K176435-259#19749#20008
10K → 15K54750-696#20008#20704
15K → 20K151249-98#20704#20802
20K → Half1582-67#20802#20869
Half → 25K143157-14#20869#20883
25K → 30K27384+189#20883#20694
30K → 20M2188+210#20694#20484
20M → 21M9653+43#20484#20441
21M → 35K1463+143#20441#20298
35K → 23M3240+324#20298#19974
23M → 24M2430+243#19974#19731
24M → 40K2200+220#19731#19511
40K → 25.2M1360+136#19511#19375
25.2M → Finish2017+194#19375#19181
TOTALS23961828+568
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing