Boston Marathon logo
BOSTON MARATHON 2024

K-Ming Lee

Bib: 3876•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 15%
Gender (Male)
#0 / 14578
Top 24%
Division (M18-39)
#0 / 4849
Top 46%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #3835
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
40:45
Rank: #3483 (+352)
5K → 10K
20:19 | 6:32/mi
15K· 9.32 mi
1:01:10
Rank: #3344 (+139)
10K → 15K
20:25 | 6:34/mi
20K· 12.43 mi
1:21:40
Rank: #3102 (+242)
15K → 20K
20:30 | 6:36/mi
Half· 13.11 mi
1:26:04
Rank: #3046 (+56)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:41:58
Rank: #2777 (+269)
Half → 25K
15:54 | 6:33/mi
30K· 18.64 mi
2:03:36
Rank: #2646 (+131)
25K → 30K
21:38 | 6:58/mi
20M
2:13:33
Rank: #2703 (-57)
30K → 20M
9:57 | 7:19/mi
21M
2:21:20
Rank: #2717 (-14)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:27:16
Rank: #2884 (-167)
21M → 35K
5:56 | 7:56/mi
23M
2:37:32
Rank: #3132 (-248)
35K → 23M
10:16 | 8:12/mi
24M
2:46:25
Rank: #3463 (-331)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
2:54:04
Rank: #3655 (-192)
24M → 40K
7:39 | 8:57/mi
25.2M
2:57:29
Rank: #3713 (-58)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:05:30
Rank: #3780 (-67)
25.2M → Finish
8:01 | 7:52/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
Time1:26:04
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
📊Positive Split: 15.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2620:266:3520:26
6:35
-
10K
6.21 mi10:44:4540:456:3320:19
6:32
-0:03
15K
9.32 mi11:05:101:01:106:3420:25
6:34
+0:02
20K
12.43 mi11:25:401:21:406:3420:30
6:36
+0:02
Half
13.11 mi11:30:041:26:046:344:24
6:27
-0:09
25K
15.53 mi11:45:581:41:586:3415:54
6:33
+0:06
30K
18.64 mi12:07:362:03:366:3821:38
6:58
+0:25
20M
20.00 mi12:17:332:13:336:419:57
7:19
+0:21
21M
21.00 mi12:25:202:21:206:447:47
7:47
+0:28
35K
21.75 mi12:31:162:27:166:465:56
7:56
+0:09
23M
23.00 mi12:41:322:37:326:5110:16
8:12
+0:16
24M
24.00 mi12:50:252:46:256:568:53
8:53
+0:41
40K
24.85 mi12:58:042:54:047:007:39
8:57
+0:04
25.2M
25.20 mi13:01:292:57:297:033:25
9:54
+0:57
Finish
26.22 mi13:09:303:05:307:058:01
7:52
-2:02

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

6:27 /mi

Average Pace

7:05 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:58

55% of race

Time at Steady Pace

39:22

21% of race

Time at Slower Pace

44:10

24% of race

Average Pace: 7:04 /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 mi10:24:2620:266:3520:26
6:35
#3835
10K
6.21 mi10:44:4540:456:3320:19
6:32
#3483
15K
9.32 mi11:05:101:01:106:3420:25
6:34
#3344
20K
12.43 mi11:25:401:21:406:3420:30
6:36
#3102
Half
13.11 mi11:30:041:26:046:344:24
6:27
#3046
25K
15.53 mi11:45:581:41:586:3415:54
6:33
#2777
30K
18.64 mi12:07:362:03:366:3821:38
6:58
#2646
20M
20.00 mi12:17:332:13:336:419:57
7:19
#2703
21M
21.00 mi12:25:202:21:206:447:47
7:47
#2717
35K
21.75 mi12:31:162:27:166:465:56
7:56
#2884
23M
23.00 mi12:41:322:37:326:5110:16
8:12
#3132
24M
24.00 mi12:50:252:46:256:568:53
8:53
#3463
40K
24.85 mi12:58:042:54:047:007:39
8:57
#3655
25.2M
25.20 mi13:01:292:57:297:033:25
9:54
#3713
Finish
26.22 mi13:09:303:05:307:058:01
7:52
#3780
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3835363236323101(Top 12%)2955(Top 20%)2955(Top 61%)
10K6.21 mi3.10 mi3483+3523306+3263306+3263249(Top 13%)3088(Top 21%)3088(Top 64%)
15K9.32 mi3.11 mi3344+1393183+1233183+1233101(Top 12%)2955(Top 20%)2955(Top 61%)
20K12.43 mi3.11 mi3102+2422958+2252958+2252627(Top 10%)2511(Top 17%)2511(Top 52%)
Half13.11 mi0.68 mi3046+562907+512907+512382(Top 9%)2285(Top 16%)2285(Top 47%)
25K15.53 mi2.42 mi2777+2692649+2582649+2582004(Top 8%)1922(Top 13%)1922(Top 40%)
30K18.64 mi3.11 mi2646+1312517+1322517+1322694(Top 11%)2526(Top 17%)2526(Top 52%)
20M20.00 mi1.36 mi2703-572566-492566-493638(Top 14%)3285(Top 23%)3285(Top 68%)
21M21.00 mi1.00 mi2717-142574-82574-83407(Top 13%)3025(Top 21%)3025(Top 62%)
35K21.75 mi0.75 mi2884-1672723-1492723-1497289(Top 29%)5365(Top 37%)5365(Top 111%)
23M23.00 mi1.25 mi3132-2482932-2092932-2096772(Top 27%)4955(Top 34%)4955(Top 102%)
24M24.00 mi1.00 mi3463-3313209-2773209-27711522(Top 45%)7308(Top 50%)7308(Top 151%)
40K24.85 mi0.85 mi3655-1923369-1603369-16010572(Top 41%)6683(Top 46%)6683(Top 138%)
25.2M25.20 mi0.35 mi3713-583412-433412-4310464(Top 41%)6574(Top 45%)6574(Top 136%)
Finish26.22 mi1.02 mi3780-673448-363448-367687(Top 30%)5239(Top 36%)5239(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3101

Males

2955

M18-39

2955

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3249

Males

3088

M18-39

3088

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3101

Males

2955

M18-39

2955

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2627

Males

2511

M18-39

2511

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2382

Males

2285

M18-39

2285

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2004

Males

1922

M18-39

1922

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2694

Males

2526

M18-39

2526

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3638

Males

3285

M18-39

3285

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3407

Males

3025

M18-39

3025

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7289

Males

5365

M18-39

5365

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

6772

Males

4955

M18-39

4955

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11522

Males

7308

M18-39

7308

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10572

Males

6683

M18-39

6683

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10464

Males

6574

M18-39

6574

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

7687

Males

5239

M18-39

5239

Passing Analysis

Category:
Athletes Passed
1586
Passed By
1531
Net Change
+55
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3835
5K → 10K38331+352#3835#3483
10K → 15K17132+139#3483#3344
15K → 20K25917+242#3344#3102
20K → Half593+56#3102#3046
Half → 25K2723+269#3046#2777
25K → 30K20675+131#2777#2646
30K → 20M53110-57#2646#2703
20M → 21M6276-14#2703#2717
21M → 35K23190-167#2717#2884
35K → 23M30278-248#2884#3132
23M → 24M8339-331#3132#3463
24M → 40K15207-192#3463#3655
40K → 25.2M967-58#3655#3713
25.2M → Finish36103-67#3713#3780
TOTALS15861531+55
📊

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