Boston Marathon logo
BOSTON MARATHON 2023

Louis Salemy

Bib: 25018•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:33
Rank: #19831
Start → 5K
8:52/mi
27:33 split
10K· 6.21 mi
55:52
Rank: #20608 (-777)
5K → 10K
9:07/mi
28:19 split
15K· 9.32 mi
1:25:02
Rank: #21121 (-513)
10K → 15K
9:23/mi
29:10 split
20K· 12.43 mi
1:53:51
Rank: #21040 (+81)
15K → 20K
9:17/mi
28:49 split
Half· 13.11 mi
2:00:11
Rank: #21067 (-27)
20K → Half
9:17/mi
6:20 split
25K· 15.53 mi
2:22:54
Rank: #20923 (+144)
Half → 25K
9:22/mi
22:43 split
30K· 18.64 mi
2:53:06
Rank: #20777 (+146)
25K → 30K
9:43/mi
30:12 split
20M
3:06:34
Rank: #20698 (+79)
30K → 20M
9:55/mi
13:28 split
21M
3:17:07
Rank: #20635 (+63)
20M → 21M
10:33/mi
10:33 split
35K· 21.75 mi
3:24:22
Rank: #20622 (+13)
21M → 35K
9:41/mi
7:15 split
23M
3:37:01
Rank: #20581 (+41)
35K → 23M
10:06/mi
12:39 split
24M
3:46:49
Rank: #20556 (+25)
23M → 24M
9:48/mi
9:48 split
40K· 24.85 mi
3:55:23
Rank: #20540 (+16)
24M → 40K
10:01/mi
8:34 split
25.2M
3:59:04
Rank: #20514 (+26)
40K → 25.2M
10:41/mi
3:41 split
Finish· 26.22 mi
4:08:58
Rank: #20532 (-18)
25.2M → Finish
9:43/mi
9:54 split

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
Time2:00:11
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:08:47
Pace9:49 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1827:338:5227:33
8:52
-
10K
6.21 mi12:11:3755:528:5928:19
9:07
+0:15
15K
9.32 mi12:40:471:25:029:0729:10
9:23
+0:16
20K
12.43 mi13:09:361:53:519:1028:49
9:17
-0:06
Half
13.11 mi13:15:562:00:119:106:20
9:17
0:00
25K
15.53 mi13:38:392:22:549:1222:43
9:22
+0:05
30K
18.64 mi14:08:512:53:069:1730:12
9:43
+0:21
20M
20.00 mi14:22:193:06:349:2013:28
9:55
+0:12
21M
21.00 mi14:32:523:17:079:2310:33
10:33
+0:38
35K
21.75 mi14:40:073:24:229:247:15
9:41
-0:52
23M
23.00 mi14:52:463:37:019:2612:39
10:06
+0:25
24M
24.00 mi15:02:343:46:499:279:48
9:48
-0:18
40K
24.85 mi15:11:083:55:239:288:34
10:01
+0:13
25.2M
25.20 mi15:14:493:59:049:293:41
10:41
+0:40
Finish
26.22 mi15:24:434:08:589:309:54
9:43
-0:58

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

8:52 /mi

Average Pace

9:30 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:54

57% of race

Time at Steady Pace

1:10:37

28% of race

Time at Slower Pace

35:27

14% of race

Average Pace: 9:30 /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 mi11:43:1827:338:5227:33
8:52
#19831
10K
6.21 mi12:11:3755:528:5928:19
9:07
#20608
15K
9.32 mi12:40:471:25:029:0729:10
9:23
#21121
20K
12.43 mi13:09:361:53:519:1028:49
9:17
#21040
Half
13.11 mi13:15:562:00:119:106:20
9:17
#21067
25K
15.53 mi13:38:392:22:549:1222:43
9:22
#20923
30K
18.64 mi14:08:512:53:069:1730:12
9:43
#20777
20M
20.00 mi14:22:193:06:349:2013:28
9:55
#20698
21M
21.00 mi14:32:523:17:079:2310:33
10:33
#20635
35K
21.75 mi14:40:073:24:229:247:15
9:41
#20622
23M
23.00 mi14:52:463:37:019:2612:39
10:06
#20581
24M
24.00 mi15:02:343:46:499:279:48
9:48
#20556
40K
24.85 mi15:11:083:55:239:288:34
10:01
#20540
25.2M
25.20 mi15:14:493:59:049:293:41
10:41
#20514
Finish
26.22 mi15:24:434:08:589:309:54
9:43
#20532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19831121041210421919(Top 82%)13152(Top 87%)13152(Top 1185%)
10K6.21 mi3.10 mi20608-77712495-39112495-39121325(Top 80%)12850(Top 85%)12850(Top 1158%)
15K9.32 mi3.11 mi21121-51312755-26012755-26021919(Top 82%)13152(Top 87%)13152(Top 1185%)
20K12.43 mi3.11 mi21040+8112718+3712718+3720877(Top 78%)12698(Top 84%)12698(Top 1144%)
Half13.11 mi0.68 mi21067-2712739-2112739-2121414(Top 80%)12918(Top 85%)12918(Top 1164%)
25K15.53 mi2.42 mi20923+14412685+5412685+5420409(Top 77%)12456(Top 82%)12456(Top 1122%)
30K18.64 mi3.11 mi20777+14612608+7712608+7720198(Top 76%)12293(Top 81%)12293(Top 1107%)
20M20.00 mi1.36 mi20698+7912551+5712551+5720197(Top 76%)12199(Top 80%)12199(Top 1099%)
21M21.00 mi1.00 mi20635+6312513+3812513+3819738(Top 74%)11934(Top 79%)11934(Top 1075%)
35K21.75 mi0.75 mi20622+1312499+1412499+1420432(Top 77%)12223(Top 81%)12223(Top 1101%)
23M23.00 mi1.25 mi20581+4112468+3112468+3120277(Top 76%)12136(Top 80%)12136(Top 1093%)
24M24.00 mi1.00 mi20556+2512442+2612442+2620208(Top 76%)12093(Top 80%)12093(Top 1089%)
40K24.85 mi0.85 mi20540+1612423+1912423+1920007(Top 75%)11921(Top 79%)11921(Top 1074%)
25.2M25.20 mi0.35 mi20514+2612414+912414+919631(Top 74%)11755(Top 77%)11755(Top 1059%)
Finish26.22 mi1.02 mi20532-1812406+812406+820836(Top 78%)12335(Top 81%)12335(Top 1111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21919

Males

13152

M60-64

13152

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21325

Males

12850

M60-64

12850

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21919

Males

13152

M60-64

13152

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

20877

Males

12698

M60-64

12698

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

21414

Males

12918

M60-64

12918

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

20409

Males

12456

M60-64

12456

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20198

Males

12293

M60-64

12293

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20197

Males

12199

M60-64

12199

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19738

Males

11934

M60-64

11934

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20432

Males

12223

M60-64

12223

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20277

Males

12136

M60-64

12136

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20208

Males

12093

M60-64

12093

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20007

Males

11921

M60-64

11921

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19631

Males

11755

M60-64

11755

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20836

Males

12335

M60-64

12335

Passing Analysis

Category:
Athletes Passed
1266
Passed By
1967
Net Change
-701
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19831
5K → 10K74851-777#19831#20608
10K → 15K39552-513#20608#21121
15K → 20K182101+81#21121#21040
20K → Half2047-27#21040#21067
Half → 25K18945+144#21067#20923
25K → 30K21973+146#20923#20777
30K → 20M11132+79#20777#20698
20M → 21M10441+63#20698#20635
21M → 35K4936+13#20635#20622
35K → 23M8241+41#20622#20581
23M → 24M6136+25#20581#20556
24M → 40K5741+16#20556#20540
40K → 25.2M4014+26#20540#20514
25.2M → Finish3957-18#20514#20532
TOTALS12661967-701
📊

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