Boston Marathon logo
BOSTON MARATHON 2024

Justin Lalanne

Bib: 1132•M

NS

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 7%
Gender (Male)
#0 / 14578
Top 11%
Masters (Masters Men)
#0 / 9729
Top 4%
Division (M40-44)
#0 / 2009
Top 11%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:16
Rank: #3451
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
40:20
Rank: #3095 (+356)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:11
Rank: #2692 (+403)
10K → 15K
19:51 | 6:23/mi
20K· 12.43 mi
1:20:12
Rank: #2430 (+262)
15K → 20K
20:01 | 6:27/mi
Half· 13.11 mi
1:24:37
Rank: #2432 (-2)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:40:18
Rank: #2230 (+202)
Half → 25K
15:41 | 6:28/mi
30K· 18.64 mi
2:01:44
Rank: #2179 (+51)
25K → 30K
21:26 | 6:54/mi
20M
2:11:17
Rank: #2141 (+38)
30K → 20M
9:33 | 7:02/mi
21M
2:18:28
Rank: #2061 (+80)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:23:31
Rank: #2028 (+33)
21M → 35K
5:03 | 6:45/mi
23M
2:32:10
Rank: #1951 (+77)
35K → 23M
8:39 | 6:55/mi
24M
2:38:56
Rank: #1890 (+61)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
2:44:50
Rank: #1848 (+42)
24M → 40K
5:54 | 6:54/mi
25.2M
2:47:26
Rank: #1814 (+34)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:53:51
Rank: #1721 (+93)
25.2M → Finish
6:25 | 6:18/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
Time1:24:37
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:29:14
Pace6:48 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4920:166:3120:16
6:31
-
10K
6.21 mi10:43:5340:206:2920:04
6:28
-0:03
15K
9.32 mi11:03:441:00:116:2719:51
6:23
-0:05
20K
12.43 mi11:23:451:20:126:2720:01
6:27
+0:04
Half
13.11 mi11:28:101:24:376:274:25
6:28
+0:01
25K
15.53 mi11:43:511:40:186:2715:41
6:28
0:00
30K
18.64 mi12:05:172:01:446:3221:26
6:54
+0:26
20M
20.00 mi12:14:502:11:176:349:33
7:02
+0:08
21M
21.00 mi12:22:012:18:286:367:11
7:11
+0:09
35K
21.75 mi12:27:042:23:316:365:03
6:45
-0:26
23M
23.00 mi12:35:432:32:106:378:39
6:55
+0:10
24M
24.00 mi12:42:292:38:566:376:46
6:46
-0:09
40K
24.85 mi12:48:232:44:506:385:54
6:54
+0:08
25.2M
25.20 mi12:50:592:47:266:392:36
7:32
+0:38
Finish
26.22 mi12:57:242:53:516:386:25
6:18
-1:14

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

6:18 /mi

Average Pace

6:38 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:31

89% of race

Time at Steady Pace

16:44

10% of race

Time at Slower Pace

2:36

1% of race

Average Pace: 6:38 /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 mi10:23:4920:166:3120:16
6:31
#3451
10K
6.21 mi10:43:5340:206:2920:04
6:28
#3095
15K
9.32 mi11:03:441:00:116:2719:51
6:23
#2692
20K
12.43 mi11:23:451:20:126:2720:01
6:27
#2430
Half
13.11 mi11:28:101:24:376:274:25
6:28
#2432
25K
15.53 mi11:43:511:40:186:2715:41
6:28
#2230
30K
18.64 mi12:05:172:01:446:3221:26
6:54
#2179
20M
20.00 mi12:14:502:11:176:349:33
7:02
#2141
21M
21.00 mi12:22:012:18:286:367:11
7:11
#2061
35K
21.75 mi12:27:042:23:316:365:03
6:45
#2028
23M
23.00 mi12:35:432:32:106:378:39
6:55
#1951
24M
24.00 mi12:42:292:38:566:376:46
6:46
#1890
40K
24.85 mi12:48:232:44:506:385:54
6:54
#1848
25.2M
25.20 mi12:50:592:47:266:392:36
7:32
#1814
Finish
26.22 mi12:57:242:53:516:386:25
6:18
#1721
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3451329032902115(Top 8%)2044(Top 14%)2044(Top 102%)
10K6.21 mi3.10 mi3095+3562953+3372953+3372741(Top 11%)2623(Top 18%)2623(Top 131%)
15K9.32 mi3.11 mi2692+4032584+3692584+3692115(Top 8%)2044(Top 14%)2044(Top 102%)
20K12.43 mi3.11 mi2430+2622334+2502334+2501905(Top 7%)1837(Top 13%)1837(Top 91%)
Half13.11 mi0.68 mi2432-22337-32337-32436(Top 10%)2331(Top 16%)2331(Top 116%)
25K15.53 mi2.42 mi2230+2022150+1872150+1871655(Top 6%)1596(Top 11%)1596(Top 79%)
30K18.64 mi3.11 mi2179+512091+592091+592355(Top 9%)2220(Top 15%)2220(Top 111%)
20M20.00 mi1.36 mi2141+382052+392052+392459(Top 10%)2285(Top 16%)2285(Top 114%)
21M21.00 mi1.00 mi2061+801974+781974+781510(Top 6%)1423(Top 10%)1423(Top 71%)
35K21.75 mi0.75 mi2028+331942+321942+322068(Top 8%)1907(Top 13%)1907(Top 95%)
23M23.00 mi1.25 mi1951+771868+741868+741630(Top 6%)1513(Top 10%)1513(Top 75%)
24M24.00 mi1.00 mi1890+611807+611807+611572(Top 6%)1448(Top 10%)1448(Top 72%)
40K24.85 mi0.85 mi1848+421765+421765+421579(Top 6%)1445(Top 10%)1445(Top 72%)
25.2M25.20 mi0.35 mi1814+341733+321733+321502(Top 6%)1360(Top 9%)1360(Top 68%)
Finish26.22 mi1.02 mi1721+931643+901643+90913(Top 4%)845(Top 6%)845(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2115

Males

2044

M40-44

2044

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2741

Males

2623

M40-44

2623

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2115

Males

2044

M40-44

2044

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1905

Males

1837

M40-44

1837

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2436

Males

2331

M40-44

2331

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1655

Males

1596

M40-44

1596

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2355

Males

2220

M40-44

2220

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2459

Males

2285

M40-44

2285

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1510

Males

1423

M40-44

1423

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2068

Males

1907

M40-44

1907

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1630

Males

1513

M40-44

1513

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1572

Males

1448

M40-44

1448

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1579

Males

1445

M40-44

1445

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1502

Males

1360

M40-44

1360

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

913

Males

845

M40-44

845

Passing Analysis

Category:
Athletes Passed
1964
Passed By
234
Net Change
+1730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3451
5K → 10K37317+356#3451#3095
10K → 15K4052+403#3095#2692
15K → 20K2653+262#2692#2430
20K → Half1517-2#2430#2432
Half → 25K2108+202#2432#2230
25K → 30K13786+51#2230#2179
30K → 20M7638+38#2179#2141
20M → 21M9111+80#2141#2061
21M → 35K4310+33#2061#2028
35K → 23M9417+77#2028#1951
23M → 24M7211+61#1951#1890
24M → 40K486+42#1890#1848
40K → 25.2M384+34#1848#1814
25.2M → Finish974+93#1814#1721
TOTALS1964234+1730
📊

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