Boston Marathon logo
BOSTON MARATHON 2023

Sheng-Hung Lin

Bib: 6543•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:34
Rank: #5882
Start → 5K
21:34 | 6:56/mi
10K· 6.21 mi
43:42
Rank: #6692 (-810)
5K → 10K
22:08 | 7:07/mi
15K· 9.32 mi
1:06:09
Rank: #7089 (-397)
10K → 15K
22:27 | 7:14/mi
20K· 12.43 mi
1:30:44
Rank: #8254 (-1165)
15K → 20K
24:35 | 7:55/mi
Half· 13.11 mi
1:35:50
Rank: #8328 (-74)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:54:02
Rank: #8374 (-46)
Half → 25K
18:12 | 7:30/mi
30K· 18.64 mi
2:17:58
Rank: #8366 (+8)
25K → 30K
23:56 | 7:42/mi
20M
2:28:18
Rank: #8276 (+90)
30K → 20M
10:20 | 7:36/mi
21M
2:36:15
Rank: #8200 (+76)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:41:39
Rank: #8117 (+83)
21M → 35K
5:24 | 7:13/mi
23M
2:51:08
Rank: #8002 (+115)
35K → 23M
9:29 | 7:34/mi
24M
2:58:28
Rank: #7916 (+86)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
3:04:56
Rank: #7862 (+54)
24M → 40K
6:28 | 7:34/mi
25.2M
3:07:40
Rank: #7826 (+36)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:15:02
Rank: #7737 (+89)
25.2M → Finish
7:22 | 7:14/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
Time1:35:50
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:39:12
Pace7:34 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5721:346:5621:34
6:56
-
10K
6.21 mi10:47:0543:427:0222:08
7:07
+0:11
15K
9.32 mi11:09:321:06:097:0622:27
7:14
+0:07
20K
12.43 mi11:34:071:30:447:1824:35
7:55
+0:41
Half
13.11 mi11:39:131:35:507:195:06
7:29
-0:26
25K
15.53 mi11:57:251:54:027:2018:12
7:30
+0:01
30K
18.64 mi12:21:212:17:587:2423:56
7:42
+0:12
20M
20.00 mi12:31:412:28:187:2510:20
7:36
-0:06
21M
21.00 mi12:39:382:36:157:267:57
7:57
+0:21
35K
21.75 mi12:45:022:41:397:265:24
7:13
-0:44
23M
23.00 mi12:54:312:51:087:269:29
7:34
+0:21
24M
24.00 mi13:01:512:58:287:267:20
7:20
-0:14
40K
24.85 mi13:08:193:04:567:266:28
7:34
+0:14
25.2M
25.20 mi13:11:033:07:407:272:44
7:56
+0:22
Finish
26.22 mi13:18:253:15:027:277:22
7:14
-0:42

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

6:56 /mi

Average Pace

7:27 /mi

Slowest Pace

7:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:50

70% of race

Time at Steady Pace

59:12

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:24:5721:346:5621:34
6:56
#5882
10K
6.21 mi10:47:0543:427:0222:08
7:07
#6692
15K
9.32 mi11:09:321:06:097:0622:27
7:14
#7089
20K
12.43 mi11:34:071:30:447:1824:35
7:55
#8254
Half
13.11 mi11:39:131:35:507:195:06
7:29
#8328
25K
15.53 mi11:57:251:54:027:2018:12
7:30
#8374
30K
18.64 mi12:21:212:17:587:2423:56
7:42
#8366
20M
20.00 mi12:31:412:28:187:2510:20
7:36
#8276
21M
21.00 mi12:39:382:36:157:267:57
7:57
#8200
35K
21.75 mi12:45:022:41:397:265:24
7:13
#8117
23M
23.00 mi12:54:312:51:087:269:29
7:34
#8002
24M
24.00 mi13:01:512:58:287:267:20
7:20
#7916
40K
24.85 mi13:08:193:04:567:266:28
7:34
#7862
25.2M
25.20 mi13:11:033:07:407:272:44
7:56
#7826
Finish
26.22 mi13:18:253:15:027:277:22
7:14
#7737
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5882539453947963(Top 30%)6897(Top 45%)6897(Top 131%)
10K6.21 mi3.10 mi6692-8106028-6346028-6347583(Top 28%)6663(Top 44%)6663(Top 126%)
15K9.32 mi3.11 mi7089-3976320-2926320-2927963(Top 30%)6897(Top 45%)6897(Top 131%)
20K12.43 mi3.11 mi8254-11657103-7837103-78312701(Top 48%)9300(Top 61%)9300(Top 176%)
Half13.11 mi0.68 mi8328-747146-437146-439929(Top 37%)8039(Top 53%)8039(Top 152%)
25K15.53 mi2.42 mi8374-467148-27148-28816(Top 33%)7317(Top 48%)7317(Top 138%)
30K18.64 mi3.11 mi8366+87103+457103+458651(Top 32%)7068(Top 47%)7068(Top 134%)
20M20.00 mi1.36 mi8276+907024+797024+797508(Top 28%)6284(Top 41%)6284(Top 119%)
21M21.00 mi1.00 mi8200+766960+646960+647021(Top 26%)5877(Top 39%)5877(Top 111%)
35K21.75 mi0.75 mi8117+836898+626898+626639(Top 25%)5676(Top 37%)5676(Top 107%)
23M23.00 mi1.25 mi8002+1156803+956803+956898(Top 26%)5763(Top 38%)5763(Top 109%)
24M24.00 mi1.00 mi7916+866732+716732+716597(Top 25%)5487(Top 36%)5487(Top 104%)
40K24.85 mi0.85 mi7862+546681+516681+517087(Top 27%)5680(Top 37%)5680(Top 107%)
25.2M25.20 mi0.35 mi7826+366651+306651+306068(Top 23%)4999(Top 33%)4999(Top 95%)
Finish26.22 mi1.02 mi7737+896571+806571+806611(Top 25%)5322(Top 35%)5322(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

7963

Males

6897

M18-39

6897

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7583

Males

6663

M18-39

6663

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

7963

Males

6897

M18-39

6897

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

12701

Males

9300

M18-39

9300

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9929

Males

8039

M18-39

8039

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8816

Males

7317

M18-39

7317

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8651

Males

7068

M18-39

7068

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7508

Males

6284

M18-39

6284

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7021

Males

5877

M18-39

5877

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6639

Males

5676

M18-39

5676

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6898

Males

5763

M18-39

5763

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6597

Males

5487

M18-39

5487

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7087

Males

5680

M18-39

5680

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6068

Males

4999

M18-39

4999

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6611

Males

5322

M18-39

5322

Passing Analysis

Category:
Athletes Passed
1122
Passed By
2977
Net Change
-1855
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5882
5K → 10K22832-810#5882#6692
10K → 15K25422-397#6692#7089
15K → 20K51170-1165#7089#8254
20K → Half680-74#8254#8328
Half → 25K100146-46#8328#8374
25K → 30K152144+8#8374#8366
30K → 20M11323+90#8366#8276
20M → 21M11539+76#8276#8200
21M → 35K929+83#8200#8117
35K → 23M14328+115#8117#8002
23M → 24M10721+86#8002#7916
24M → 40K8127+54#7916#7862
40K → 25.2M4812+36#7862#7826
25.2M → Finish11324+89#7826#7737
TOTALS11222977-1855
📊

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