Boston Marathon logo
BOSTON MARATHON 2023

Henry Louis

Bib: 6542•M

ON

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 27%
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
21:08
Rank: #4693
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
42:04
Rank: #4692 (+1)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:02:59
Rank: #4576 (+116)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:56
Rank: #4385 (+191)
15K → 20K
20:57 | 6:45/mi
Half· 13.11 mi
1:28:30
Rank: #4374 (+11)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:54
Rank: #4246 (+128)
Half → 25K
16:24 | 6:46/mi
30K· 18.64 mi
2:06:15
Rank: #4056 (+190)
25K → 30K
21:21 | 6:52/mi
20M
2:15:44
Rank: #4029 (+27)
30K → 20M
9:29 | 6:59/mi
21M
2:23:09
Rank: #4018 (+11)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:28:12
Rank: #4006 (+12)
21M → 35K
5:03 | 6:45/mi
23M
2:37:14
Rank: #4078 (-72)
35K → 23M
9:02 | 7:13/mi
24M
2:44:32
Rank: #4241 (-163)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:50:51
Rank: #4307 (-66)
24M → 40K
6:19 | 7:23/mi
25.2M
2:53:31
Rank: #4306 (+1)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:00:37
Rank: #4331 (-25)
25.2M → Finish
7:06 | 6:58/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
Time1:28:30
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:32:07
Pace7:02 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3621:086:4821:08
6:48
-
10K
6.21 mi10:45:3242:046:4620:56
6:44
-0:04
15K
9.32 mi11:06:271:02:596:4520:55
6:44
0:00
20K
12.43 mi11:27:241:23:566:4520:57
6:45
+0:01
Half
13.11 mi11:31:581:28:306:454:34
6:42
-0:03
25K
15.53 mi11:48:221:44:546:4516:24
6:46
+0:04
30K
18.64 mi12:09:432:06:156:4621:21
6:52
+0:06
20M
20.00 mi12:19:122:15:446:479:29
6:59
+0:07
21M
21.00 mi12:26:372:23:096:497:25
7:25
+0:26
35K
21.75 mi12:31:402:28:126:495:03
6:45
-0:40
23M
23.00 mi12:40:422:37:146:509:02
7:13
+0:28
24M
24.00 mi12:48:002:44:326:517:18
7:18
+0:05
40K
24.85 mi12:54:192:50:516:526:19
7:23
+0:05
25.2M
25.20 mi12:56:592:53:316:532:40
7:44
+0:21
Finish
26.22 mi13:04:053:00:376:547:06
6:58
-0:46

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

6:42 /mi

Average Pace

6:54 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:13

91% of race

Time at Steady Pace

16:24

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:24:3621:086:4821:08
6:48
#4693
10K
6.21 mi10:45:3242:046:4620:56
6:44
#4692
15K
9.32 mi11:06:271:02:596:4520:55
6:44
#4576
20K
12.43 mi11:27:241:23:566:4520:57
6:45
#4385
Half
13.11 mi11:31:581:28:306:454:34
6:42
#4374
25K
15.53 mi11:48:221:44:546:4516:24
6:46
#4246
30K
18.64 mi12:09:432:06:156:4621:21
6:52
#4056
20M
20.00 mi12:19:122:15:446:479:29
6:59
#4029
21M
21.00 mi12:26:372:23:096:497:25
7:25
#4018
35K
21.75 mi12:31:402:28:126:495:03
6:45
#4006
23M
23.00 mi12:40:422:37:146:509:02
7:13
#4078
24M
24.00 mi12:48:002:44:326:517:18
7:18
#4241
40K
24.85 mi12:54:192:50:516:526:19
7:23
#4307
25.2M
25.20 mi12:56:592:53:316:532:40
7:44
#4306
Finish
26.22 mi13:04:053:00:376:547:06
6:58
#4331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4693436743674445(Top 17%)4154(Top 27%)4154(Top 79%)
10K6.21 mi3.10 mi4692+14374-74374-74702(Top 18%)4375(Top 29%)4375(Top 83%)
15K9.32 mi3.11 mi4576+1164273+1014273+1014445(Top 17%)4154(Top 27%)4154(Top 79%)
20K12.43 mi3.11 mi4385+1914104+1694104+1693925(Top 15%)3699(Top 24%)3699(Top 70%)
Half13.11 mi0.68 mi4374+114094+104094+104287(Top 16%)4011(Top 26%)4011(Top 76%)
25K15.53 mi2.42 mi4246+1283981+1133981+1133852(Top 14%)3624(Top 24%)3624(Top 69%)
30K18.64 mi3.11 mi4056+1903813+1683813+1683485(Top 13%)3276(Top 22%)3276(Top 62%)
20M20.00 mi1.36 mi4029+273787+263787+263913(Top 15%)3641(Top 24%)3641(Top 69%)
21M21.00 mi1.00 mi4018+113773+143773+144192(Top 16%)3844(Top 25%)3844(Top 73%)
35K21.75 mi0.75 mi4006+123759+143759+143870(Top 15%)3564(Top 23%)3564(Top 67%)
23M23.00 mi1.25 mi4078-723819-603819-604856(Top 18%)4355(Top 29%)4355(Top 82%)
24M24.00 mi1.00 mi4241-1633971-1523971-1526329(Top 24%)5292(Top 35%)5292(Top 100%)
40K24.85 mi0.85 mi4307-664024-534024-535953(Top 22%)4977(Top 33%)4977(Top 94%)
25.2M25.20 mi0.35 mi4306+14020+44020+44970(Top 19%)4247(Top 28%)4247(Top 80%)
Finish26.22 mi1.02 mi4331-254040-204040-204993(Top 19%)4264(Top 28%)4264(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4445

Males

4154

M18-39

4154

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4702

Males

4375

M18-39

4375

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4445

Males

4154

M18-39

4154

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3925

Males

3699

M18-39

3699

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4287

Males

4011

M18-39

4011

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3852

Males

3624

M18-39

3624

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3485

Males

3276

M18-39

3276

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3913

Males

3641

M18-39

3641

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4192

Males

3844

M18-39

3844

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3870

Males

3564

M18-39

3564

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4856

Males

4355

M18-39

4355

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6329

Males

5292

M18-39

5292

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5953

Males

4977

M18-39

4977

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4970

Males

4247

M18-39

4247

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

4993

Males

4264

M18-39

4264

Passing Analysis

Category:
Athletes Passed
1349
Passed By
987
Net Change
+362
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4693
5K → 10K207206+1#4693#4692
10K → 15K18165+116#4692#4576
15K → 20K22029+191#4576#4385
20K → Half2615+11#4385#4374
Half → 25K16032+128#4374#4246
25K → 30K22131+190#4246#4056
30K → 20M6538+27#4056#4029
20M → 21M7261+11#4029#4018
21M → 35K4533+12#4018#4006
35K → 23M33105-72#4006#4078
23M → 24M24187-163#4078#4241
24M → 40K34100-66#4241#4307
40K → 25.2M2322+1#4307#4306
25.2M → Finish3863-25#4306#4331
TOTALS1349987+362
📊

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